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base: twin:grep-regex-0.1.2
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twin:master twin:ag/fix-ci twin:ag/index twin:ag/fix-multiline-replace-duplicate twin:ag/fix-cve-2021-3013 twin:ag/moarci twin:ag/ghactions twin:ag/snafu twin:ag/disable-bom-sniff twin:ag/partial-bstr-migration twin:ag/bstr-migration twin:ag/prepare-0.10.0 twin:ag/libripgrep-freeze-2 twin:ag/libripgrep-freeze-1 twin:ag/changelog
twin:globset-0.4.16 twin:14.1.1 twin:14.1.0 twin:ignore-0.4.22 twin:14.0.3 twin:14.0.2 twin:grep-0.3.1 twin:grep-printer-0.2.1 twin:grep-searcher-0.1.13 twin:14.0.1 twin:grep-0.3.0 twin:grep-printer-0.2.0 twin:14.0.0 twin:grep-0.2.13 twin:grep-searcher-0.1.12 twin:grep-pcre2-0.1.7 twin:grep-regex-0.1.12 twin:grep-matcher-0.1.7 twin:grep-cli-0.1.10 twin:ignore-0.4.21 twin:globset-0.4.14 twin:globset-0.4.13 twin:globset-0.4.12 twin:grep-cli-0.1.9 twin:globset-0.4.11 twin:grep-cli-0.1.8 twin:grep-0.2.12 twin:ignore-0.4.20 twin:grep-0.2.11 twin:grep-printer-0.1.7 twin:grep-searcher-0.1.11 twin:grep-pcre2-0.1.6 twin:grep-regex-0.1.11 twin:grep-matcher-0.1.6 twin:grep-cli-0.1.7 twin:ignore-0.4.19 twin:globset-0.4.10 twin:grep-0.2.10 twin:grep-searcher-0.1.10 twin:grep-0.2.9 twin:grep-searcher-0.1.9 twin:grep-regex-0.1.10 twin:globset-0.4.9 twin:globset-0.4.8 twin:13.0.0 twin:grep-0.2.8 twin:grep-printer-0.1.6 twin:grep-searcher-0.1.8 twin:grep-pcre2-0.1.5 twin:grep-regex-0.1.9 twin:grep-matcher-0.1.5 twin:grep-cli-0.1.6 twin:ignore-0.4.18 twin:globset-0.4.7 twin:ignore-0.4.17 twin:globset-0.4.6 twin:12.1.1 twin:grep-0.2.7 twin:grep-cli-0.1.5 twin:ignore-0.4.16 twin:12.1.0 twin:grep-0.2.6 twin:grep-printer-0.1.5 twin:grep-regex-0.1.8 twin:ignore-0.4.15 twin:12.0.1 twin:ignore-0.4.14 twin:ignore-0.4.13 twin:grep-regex-0.1.7 twin:12.0.0 twin:grep-searcher-0.1.7 twin:grep-regex-0.1.6 twin:grep-printer-0.1.4 twin:grep-pcre2-0.1.4 twin:grep-matcher-0.1.4 twin:ignore-0.4.12 twin:grep-0.2.5 twin:globset-0.4.5 twin:grep-cli-0.1.4 twin:ignore-0.4.11 twin:grep-regex-0.1.5 twin:grep-searcher-0.1.6 twin:ignore-0.4.10 twin:11.0.2 twin:grep-matcher-0.1.3 twin:grep-regex-0.1.4 twin:ignore-0.4.9 twin:ignore-0.4.8 twin:grep-searcher-0.1.5 twin:grep-printer-0.1.3 twin:grep-cli-0.1.3 twin:globset-0.4.4 twin:11.0.1 twin:11.0.0 twin:grep-0.2.4 twin:grep-cli-0.1.2 twin:grep-printer-0.1.2 twin:grep-searcher-0.1.4 twin:grep-regex-0.1.3 twin:grep-pcre2-0.1.3 twin:grep-matcher-0.1.2 twin:ignore-0.4.7 twin:globset-0.4.3 twin:grep-regex-0.1.2 twin:grep-searcher-0.1.3 twin:grep-searcher-0.1.2 twin:ignore-0.4.6 twin:ignore-0.4.5 twin:grep-0.2.3 twin:grep-pcre2-0.1.2 twin:0.10.0 twin:grep-searcher-0.1.1 twin:globset-0.4.2 twin:grep-pcre2-0.1.1 twin:grep-0.2.2 twin:grep-printer-0.1.1 twin:ignore-0.4.4 twin:grep-regex-0.1.1 twin:grep-matcher-0.1.1 twin:grep-cli-0.1.1 twin:grep-0.2.1 twin:grep-cli-0.1.0 twin:grep-0.2.0 twin:grep-search-0.1.0 twin:grep-matcher-0.1.0 twin:grep-printer-0.1.0 twin:grep-pcre2-0.1.0 twin:grep-regex-0.1.0 twin:0.9.0 twin:grep-0.1.9 twin:ignore-0.4.3 twin:globset-0.4.1 twin:ignore-0.4.2 twin:globset-0.4.0 twin:termcolor-0.3.6 twin:0.8.1 twin:termcolor-0.3.5 twin:ignore-0.4.1 twin:0.8.0 twin:ignore-0.4.0 twin:globset-0.3.0 twin:termcolor-0.3.4 twin:wincolor-0.1.6 twin:grep-0.1.8 twin:wincolor-0.1.5 twin:0.7.1 twin:ignore-0.3.1 twin:ignore-0.3.0 twin:grep-0.1.7 twin:globset-0.2.1 twin:0.7.0 twin:termcolor-0.3.3 twin:0.6.0 twin:ignore-0.2.2 twin:ignore-0.2.1 twin:wincolor-0.1.4 twin:0.5.2 twin:ignore-0.1.9 twin:0.5.1 twin:termcolor-0.3.2 twin:0.5.0 twin:grep-0.1.6 twin:ignore-0.1.8 twin:globset-0.1.4 twin:termcolor-0.3.1 twin:wincolor-0.1.3 twin:termcolor-0.3.0 twin:wincolor-0.1.2 twin:0.4.0 twin:0.3.2 twin:ignore-0.1.6 twin:0.3.1 twin:termcolor-0.1.1 twin:0.3.0 twin:termcolor-0.1.0 twin:wincolor-0.1.0 twin:0.2.9 twin:ignore-0.1.5 twin:0.2.8 twin:0.2.7 twin:ignore-0.1.4 twin:grep-0.1.4 twin:globset-0.1.2 twin:0.2.6 twin:ignore-0.1.3 twin:ignore-0.1.2 twin:0.2.5 twin:0.2.4 twin:ignore-0.1.1 twin:ignore-0.1.0 twin:globset-0.1.1 twin:0.2.3 twin:0.2.2 twin:globset-0.1.0 twin:0.2.1 twin:0.2.0 twin:0.1.18 twin:0.1.17 twin:0.1.16 twin:0.1.15 twin:0.1.14 twin:0.1.13 twin:0.1.12 twin:0.1.11 twin:0.1.10 twin:0.1.9 twin:0.1.8 twin:0.1.7 twin:0.1.6 twin:0.1.5 twin:0.1.4 twin:0.1.3 twin:0.1.2 twin:0.1.1 twin:0.1.0 twin:0.0.19 twin:0.0.18 twin:0.0.17 twin:0.0.16 twin:0.0.15 twin:0.0.14 twin:0.0.13 twin:0.0.12 twin:0.0.11 twin:0.0.10 twin:0.0.9 twin:0.0.8 twin:0.0.7 twin:0.0.6 twin:0.0.5 twin:0.0.4 twin:0.0.3 twin:0.0.2 twin:0.0.1
..
compare: twin:globset-0.4.3
Branches Tags
twin:master twin:ag/fix-ci twin:ag/index twin:ag/fix-multiline-replace-duplicate twin:ag/fix-cve-2021-3013 twin:ag/moarci twin:ag/ghactions twin:ag/snafu twin:ag/disable-bom-sniff twin:ag/partial-bstr-migration twin:ag/bstr-migration twin:ag/prepare-0.10.0 twin:ag/libripgrep-freeze-2 twin:ag/libripgrep-freeze-1 twin:ag/changelog
twin:globset-0.4.16 twin:14.1.1 twin:14.1.0 twin:ignore-0.4.22 twin:14.0.3 twin:14.0.2 twin:grep-0.3.1 twin:grep-printer-0.2.1 twin:grep-searcher-0.1.13 twin:14.0.1 twin:grep-0.3.0 twin:grep-printer-0.2.0 twin:14.0.0 twin:grep-0.2.13 twin:grep-searcher-0.1.12 twin:grep-pcre2-0.1.7 twin:grep-regex-0.1.12 twin:grep-matcher-0.1.7 twin:grep-cli-0.1.10 twin:ignore-0.4.21 twin:globset-0.4.14 twin:globset-0.4.13 twin:globset-0.4.12 twin:grep-cli-0.1.9 twin:globset-0.4.11 twin:grep-cli-0.1.8 twin:grep-0.2.12 twin:ignore-0.4.20 twin:grep-0.2.11 twin:grep-printer-0.1.7 twin:grep-searcher-0.1.11 twin:grep-pcre2-0.1.6 twin:grep-regex-0.1.11 twin:grep-matcher-0.1.6 twin:grep-cli-0.1.7 twin:ignore-0.4.19 twin:globset-0.4.10 twin:grep-0.2.10 twin:grep-searcher-0.1.10 twin:grep-0.2.9 twin:grep-searcher-0.1.9 twin:grep-regex-0.1.10 twin:globset-0.4.9 twin:globset-0.4.8 twin:13.0.0 twin:grep-0.2.8 twin:grep-printer-0.1.6 twin:grep-searcher-0.1.8 twin:grep-pcre2-0.1.5 twin:grep-regex-0.1.9 twin:grep-matcher-0.1.5 twin:grep-cli-0.1.6 twin:ignore-0.4.18 twin:globset-0.4.7 twin:ignore-0.4.17 twin:globset-0.4.6 twin:12.1.1 twin:grep-0.2.7 twin:grep-cli-0.1.5 twin:ignore-0.4.16 twin:12.1.0 twin:grep-0.2.6 twin:grep-printer-0.1.5 twin:grep-regex-0.1.8 twin:ignore-0.4.15 twin:12.0.1 twin:ignore-0.4.14 twin:ignore-0.4.13 twin:grep-regex-0.1.7 twin:12.0.0 twin:grep-searcher-0.1.7 twin:grep-regex-0.1.6 twin:grep-printer-0.1.4 twin:grep-pcre2-0.1.4 twin:grep-matcher-0.1.4 twin:ignore-0.4.12 twin:grep-0.2.5 twin:globset-0.4.5 twin:grep-cli-0.1.4 twin:ignore-0.4.11 twin:grep-regex-0.1.5 twin:grep-searcher-0.1.6 twin:ignore-0.4.10 twin:11.0.2 twin:grep-matcher-0.1.3 twin:grep-regex-0.1.4 twin:ignore-0.4.9 twin:ignore-0.4.8 twin:grep-searcher-0.1.5 twin:grep-printer-0.1.3 twin:grep-cli-0.1.3 twin:globset-0.4.4 twin:11.0.1 twin:11.0.0 twin:grep-0.2.4 twin:grep-cli-0.1.2 twin:grep-printer-0.1.2 twin:grep-searcher-0.1.4 twin:grep-regex-0.1.3 twin:grep-pcre2-0.1.3 twin:grep-matcher-0.1.2 twin:ignore-0.4.7 twin:globset-0.4.3 twin:grep-regex-0.1.2 twin:grep-searcher-0.1.3 twin:grep-searcher-0.1.2 twin:ignore-0.4.6 twin:ignore-0.4.5 twin:grep-0.2.3 twin:grep-pcre2-0.1.2 twin:0.10.0 twin:grep-searcher-0.1.1 twin:globset-0.4.2 twin:grep-pcre2-0.1.1 twin:grep-0.2.2 twin:grep-printer-0.1.1 twin:ignore-0.4.4 twin:grep-regex-0.1.1 twin:grep-matcher-0.1.1 twin:grep-cli-0.1.1 twin:grep-0.2.1 twin:grep-cli-0.1.0 twin:grep-0.2.0 twin:grep-search-0.1.0 twin:grep-matcher-0.1.0 twin:grep-printer-0.1.0 twin:grep-pcre2-0.1.0 twin:grep-regex-0.1.0 twin:0.9.0 twin:grep-0.1.9 twin:ignore-0.4.3 twin:globset-0.4.1 twin:ignore-0.4.2 twin:globset-0.4.0 twin:termcolor-0.3.6 twin:0.8.1 twin:termcolor-0.3.5 twin:ignore-0.4.1 twin:0.8.0 twin:ignore-0.4.0 twin:globset-0.3.0 twin:termcolor-0.3.4 twin:wincolor-0.1.6 twin:grep-0.1.8 twin:wincolor-0.1.5 twin:0.7.1 twin:ignore-0.3.1 twin:ignore-0.3.0 twin:grep-0.1.7 twin:globset-0.2.1 twin:0.7.0 twin:termcolor-0.3.3 twin:0.6.0 twin:ignore-0.2.2 twin:ignore-0.2.1 twin:wincolor-0.1.4 twin:0.5.2 twin:ignore-0.1.9 twin:0.5.1 twin:termcolor-0.3.2 twin:0.5.0 twin:grep-0.1.6 twin:ignore-0.1.8 twin:globset-0.1.4 twin:termcolor-0.3.1 twin:wincolor-0.1.3 twin:termcolor-0.3.0 twin:wincolor-0.1.2 twin:0.4.0 twin:0.3.2 twin:ignore-0.1.6 twin:0.3.1 twin:termcolor-0.1.1 twin:0.3.0 twin:termcolor-0.1.0 twin:wincolor-0.1.0 twin:0.2.9 twin:ignore-0.1.5 twin:0.2.8 twin:0.2.7 twin:ignore-0.1.4 twin:grep-0.1.4 twin:globset-0.1.2 twin:0.2.6 twin:ignore-0.1.3 twin:ignore-0.1.2 twin:0.2.5 twin:0.2.4 twin:ignore-0.1.1 twin:ignore-0.1.0 twin:globset-0.1.1 twin:0.2.3 twin:0.2.2 twin:globset-0.1.0 twin:0.2.1 twin:0.2.0 twin:0.1.18 twin:0.1.17 twin:0.1.16 twin:0.1.15 twin:0.1.14 twin:0.1.13 twin:0.1.12 twin:0.1.11 twin:0.1.10 twin:0.1.9 twin:0.1.8 twin:0.1.7 twin:0.1.6 twin:0.1.5 twin:0.1.4 twin:0.1.3 twin:0.1.2 twin:0.1.1 twin:0.1.0 twin:0.0.19 twin:0.0.18 twin:0.0.17 twin:0.0.16 twin:0.0.15 twin:0.0.14 twin:0.0.13 twin:0.0.12 twin:0.0.11 twin:0.0.10 twin:0.0.9 twin:0.0.8 twin:0.0.7 twin:0.0.6 twin:0.0.5 twin:0.0.4 twin:0.0.3 twin:0.0.2 twin:0.0.1

47 Commits
grep-regex ... globset-0.

Author SHA1 Message Date
Andrew Gallant
e79085e9e4 release: globset 0.4.3 2019-04-15 14:07:03 -04:00
Andrew Gallant
764c197022 complete: fix typo 2019-04-15 07:04:57 -04:00
Andrew Gallant
ef1611b5f5 ripgrep: max-column-preview --> max-columns-preview 
Credit to @okdana for catching this. This naming is a bit more
consistent with the existing --max-columns flag.
 2019-04-15 06:51:51 -04:00
Andrew Gallant
45d12abbc5 changelog: small fixups 2019-04-14 20:21:55 -04:00
Andrew Gallant
5fde8391f9 changelog: backfill it 
I went through every commit since the 0.10.0 release and added anything
that I thought was missing.
 2019-04-14 20:04:01 -04:00
Marco Herrn
3edb11c513 ignore/types: add additional java files 
- .jspx for XHTML JSP files
- .properties for Java Properties files (resource bundles, etc.)

Closes #1242
 2019-04-14 19:38:24 -04:00
Andrew Gallant
ed144be775 ci: bump MSRV to 1.34.0 2019-04-14 19:29:27 -04:00
Andrew Gallant
967e7ad0de ripgrep: add --auto-hybrid-regex flag 
This flag, when set, will automatically dispatch to PCRE2 if the given
regex cannot be compiled by Rust's regex engine. If both engines fail to
compile the regex, then both errors are surfaced.

Closes #1155
 2019-04-14 19:29:27 -04:00
Andrew Gallant
9952ba2068 deps: update glob dev-dependency 2019-04-14 19:29:27 -04:00
Andrew Gallant
b751758d60 deps: update everything 2019-04-14 19:29:27 -04:00
Andrew Gallant
8f14cb18a5 ripgrep: increase pcre2's default JIT stack size 
The default stack size is 32KB, and this increases it to 10MB. 32KB is
pretty paltry in the environments in which ripgrep runs, and 10MB is
easily afforded as a maximum size. (The size limit we set for Rust's
regex engine is considerably larger.)

This was motivated due to the fack that JIT stack limits have been
observed to be hit in the wild:
https://github.com/Microsoft/vscode/issues/64606
 2019-04-14 19:29:27 -04:00
Andrew Gallant
da9d720431 ripgrep: add --pcre2-version flag 
This flag will output details about the version of PCRE2 that ripgrep
is using (if any).
 2019-04-14 19:29:27 -04:00
Andrew Gallant
a9d71a0368 pcre2: add a few re-exports 
This adds the top-level is_jit_available and version free functions from
the underlying pcre2 crate, and also forwards the max_jit_stack_size
option.
 2019-04-14 19:29:27 -04:00
Andrew Gallant
f3646242cc deps: use pcre2 0.2.0 
This comes with PCRE 10.32 and a few new options we'll use in subsequent
commits.
 2019-04-14 19:29:27 -04:00
Andrew Gallant
601f212a0b ripgrep: add -I as a short option for --no-filename 
This flag is commonly used in pipelines and it can be annoying to write
it out every time you need it.

Ideally, we would use -h for this to match GNU grep, but -h is used to
print help output.

Closes #1185
 2019-04-14 19:29:27 -04:00
Andrew Gallant
5a565354f8 versioning: next version will be ripgrep 11 
This sets up the release announcement and briefly describes the
versioning change. The actual version change itself won't happen until
the release.

Closes #1172
 2019-04-14 19:29:27 -04:00
Andrew Gallant
2a6532ae71 doc: note cases of exorbitant memory usage 
Fixes #1189
 2019-04-14 19:29:27 -04:00
Andrew Gallant
ece1f50cfe printer: support previews for long lines 
This commit adds support for showing a preview of long lines. While the
default still remains as completely suppressing the entire line, this
new functionality will show the first N graphemes of a matching line,
including the number of matches that are suppressed.

This was unfortunately a fairly invasive change to the printer that
required a bit of refactoring. On the bright side, the single line
and multi-line coloring are now more unified than they were before.

Closes #1078
 2019-04-14 19:29:27 -04:00
Andrew Gallant
a7d26c8f14 binary: rejigger ripgrep's handling of binary files 
This commit attempts to surface binary filtering in a slightly more
user friendly way. Namely, before, ripgrep would silently stop
searching a file if it detected a NUL byte, even if it had previously
printed a match. This can lead to the user quite reasonably assuming
that there are no more matches, since a partial search is fairly
unintuitive. (ripgrep has this behavior by default because it really
wants to NOT search binary files at all, just like it doesn't search
gitignored or hidden files.)

With this commit, if a match has already been printed and ripgrep detects
a NUL byte, then it will print a warning message indicating that the search
stopped prematurely.

Moreover, this commit adds a new flag, --binary, which causes ripgrep to
stop filtering binary files, but in a way that still avoids dumping
binary data into terminals. That is, the --binary flag makes ripgrep
behave more like grep's default behavior.

For files explicitly specified in a search, e.g., `rg foo some-file`,
then no binary filtering is applied (just like no gitignore and no
hidden file filtering is applied). Instead, ripgrep behaves as if you
gave the --binary flag for all explicitly given files.

This was a fairly invasive change, and potentially increases the UX
complexity of ripgrep around binary files. (Before, there were two
binary modes, where as now there are three.) However, ripgrep is now a
bit louder with warning messages when binary file detection might
otherwise be hiding potential matches, so hopefully this is a net
improvement.

Finally, the `-uuu` convenience now maps to `--no-ignore --hidden
--binary`, since this is closer to the actualy intent of the
`--unrestricted` flag, i.e., to reduce ripgrep's smart filtering. As a
consequence, `rg -uuu foo` should now search roughly the same number of
bytes as `grep -r foo`, and `rg -uuua foo` should search roughly the
same number of bytes as `grep -ra foo`. (The "roughly" weasel word is
used because grep's and ripgrep's binary file detection might differ
somewhat---perhaps based on buffer sizes---which can impact exactly what
is and isn't searched.)

See the numerous tests in tests/binary.rs for intended behavior.

Fixes #306, Fixes #855
 2019-04-14 19:29:27 -04:00
Andrew Gallant
bd222ae93f regex: fix HIR analysis bug 
An alternate can be empty at this point, so we must handle it. We didn't
before because the regex engine actually disallows empty alternates,
however, this code runs before the regex compiler rejects the regex.
 2019-04-14 19:29:27 -04:00
hupfdule
4359d8aac0 ignore/types: add more extensions for xml 
This includes:

    *.dtd for Document Type Definitions
    *.xsl and *.xslt for XSL Transformation descriptions
    *.xsd for XML Schema definitions
    *.xjb for JAXB bindings
    *.rng for Relax NG files
    *.sch for Schematron files

PR #1243
 2019-04-09 15:17:57 -04:00
tonypai
308819fb1f ignore/types: add lock files 
Treat anything with a `.lock` extension as a lock file, with
an extra rule or two for special cases, e.g., package-lock.json.
 2019-04-09 10:24:48 -04:00
Andrew Gallant
09108b7fda regex: make multi-literal searcher faster 
This makes the case of searching for a dictionary of a very large number
of literals much much faster. (~10x or so.) In particular, we achieve this
by short-circuiting the construction of a full regex when we know we have
a simple alternation of literals. Building the regex for a large dictionary
(>100,000 literals) turns out to be quite slow, even if it internally will
dispatch to Aho-Corasick.

Even that isn't quite enough. It turns out that even *parsing* such a regex
is quite slow. So when the -F/--fixed-strings flag is set, we short
circuit regex parsing completely and jump straight to Aho-Corasick.

We aren't quite as fast as GNU grep here, but it's much closer (less than
2x slower).

In general, this is somewhat of a hack. In particular, it seems plausible
that this optimization could be implemented entirely in the regex engine.
Unfortunately, the regex engine's internals are just not amenable to this
at all, so it would require a larger refactoring effort. For now, it's
good enough to add this fairly simple hack at a higher level.

Unfortunately, if you don't pass -F/--fixed-strings, then ripgrep will
be slower, because of the aforementioned missing optimization. Moreover,
passing flags like `-i` or `-S` will cause ripgrep to abandon this
optimization and fall back to something potentially much slower. Again,
this fix really needs to happen inside the regex engine, although we
might be able to special case -i when the input literals are pure ASCII
via Aho-Corasick's `ascii_case_insensitive`.

Fixes #497, Fixes #838
 2019-04-07 19:11:03 -04:00
Andrew Gallant
743d64f2e4 deps: update to clap 2.33 2019-04-06 10:35:08 -04:00
lesnyrumcajs
5962abc465 searcher: add option to disable BOM sniffing 
This commit adds a new encoding feature where the -E/--encoding flag
will now accept a value of 'none'. When given this value, all encoding
related machinery is disabled and ripgrep will search the raw bytes of
the file, including the BOM if it's present.

Closes #1207, Closes #1208
 2019-04-06 10:35:08 -04:00
dana
1604a18db3 ignore/types: add *.am and *.in for C/C++/make 
PR #1205
 2019-04-06 08:02:04 -04:00
luzpaz
9eeb0b01ce readme: add Repology badge 
This adds a badge to the README.md file indicating to users that click
on it if their os/distro carries that latest version of ripgrep.

PR #1213
 2019-04-06 08:00:40 -04:00
dana
df4400209a ripgrep: remove extra new-line after Clap output 
PR #1222
 2019-04-06 07:59:36 -04:00
Andrew Gallant
77439f99a4 deps: add bstr to Cargo.lock 2019-04-05 23:24:08 -04:00
Andrew Gallant
be7d6dd9ce regex: print out final regex in trace mode 
This is useful for debugging to see what regex is actually being run.
We put this as a trace since the regex can be quite gnarly. (It is not
pretty printed.)
 2019-04-05 23:24:08 -04:00
Andrew Gallant
9f15e3b671 regex: fix a perf bug when using -w flag 
When looking for an inner literal to speed up searches, if only a prefix
is found, then we generally give up doing inner literal optimizations since
the regex engine will generally handle it for us. Unfortunately, this
decision was being made *before* we wrap the regex in (^|\W)...($|\W) when
using the -w/--word-regexp flag, which would then defeat the literal
optimizations inside the regex engine.

We fix this with a bit of a hack that says, "if we're doing a word regexp,
then give me back any literal you find, even if it's a prefix."
 2019-04-05 23:24:08 -04:00
Andrew Gallant
254b8b67bb globset: small perf improvements 
This tweaks the path handling functions slightly to make them a hair
faster. In particular, `file_name` is called on every path that ripgrep
visits, and it was possible to remove a few branches without changing
behavior.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
8a7f43b84d globset: use bstr 
This simplifies the various path related functions and pushed more platform
dependent code down into bstr. This likely also makes things a bit more
efficient on Windows, since we now only do a single UTF-8 check for each
file path.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
d968a27ed5 cli: use bstr 
This uses bstr in the unescaping logic. This lets us remove some platform
specific code, and also lets us remove a hacked UTF-8 decoder on raw
bytes.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
9b8f5cbaba config: switch to using bstrs 
This lets us implement correct Unicode trimming and also simplifies the
parsing logic a bit. This also removes the last platform specific bits of
code in ripgrep core.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
c52da74ac3 printer: use bstr 
This starts the usage of bstr in the printer. We don't use it too much
yet, but it comes in handy for implementing PrinterPath and lets us push
down some platform specific code into bstr.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
7dcbff9a9b searcher: partially migrate to bstr 
This commit causes grep-searcher to use byte strings internally for its
line buffer support. We manage to remove a use of `unsafe` by doing this
(by pushing it down into `bstr`).

We stop short of using byte strings everywhere else because we rely
heavily on the `impl ops::Index<[u8]> for grep_matcher::Match` impl,
which isn't available for byte strings. (It is premature to make bstr a
public dep of a core crate like grep-matcher, but maybe some day.)
 2019-04-05 23:24:08 -04:00
Andrew Gallant
bef1f0e770 ci: switch to xenial (#1234) 
Rust is having problems with trusty, in particular, see this bug I
filed: https://github.com/rust-lang/rust/issues/59411

This was purpotedly fixed in
https://github.com/rust-lang/rust/pull/59468,
but it appears the issue is still occurring.

This commit tries to update to Ubuntu 16.04 in the hope that it will fix
this problem.
 2019-04-03 19:52:34 -04:00
Andrew Gallant
cd9815cb37 deps: update to aho-corasick 0.7 
We do the simplest possible change to migrate to the new version.

Fixes #1228
 2019-04-03 13:51:26 -04:00
Andrew Gallant
3f22c3a658 deps: update everything 
This updates all dependencies to their latest versions.

We tolerate a duplicative aho-corasick for now, which we will fix in the
next commit.
 2019-04-03 13:07:26 -04:00
Andrew Gallant
0913972104 deps: bump encoding_rs_io 
This brings in a new API for disabling BOM sniffing.

This is part of the work toward completing
https://github.com/BurntSushi/ripgrep/issues/1207
 2019-03-03 16:36:34 -05:00
Andrew Gallant
f19b84fb23 regex: bump regex dep to fix match bug 
See

* 661bf53d5b
* edf45e6f5f

for details on the bug fix, which was in the regex engine.

Fixes #1203
 2019-02-27 17:42:14 -05:00
Andrew Gallant
59fc583aeb readme: include details about filtering 
Despite the fact that we mention this in several places, people are
still surprised by ripgrep's "smart" filtering.
 2019-02-27 08:01:23 -05:00
Andrew Gallant
1c7c4e6640 deps: update tempfile 2019-02-21 16:32:17 -05:00
Andrew Gallant
69c5e3938d deps: bump smallvec 
This gets rid of the unmaintained crates `unreachable` and `void`. Yay!
 2019-02-21 16:31:48 -05:00
Andrew Gallant
d9cf05ad50 deps: update to aho-corasick 0.6.10 
This brings in a fix for this bug:
https://github.com/BurntSushi/aho-corasick/issues/37

Fixes #1079
 2019-02-16 11:39:33 -05:00
Andrew Gallant
af8b6caebb deps: update various dependencies 2019-02-16 09:39:42 -05:00
56 changed files with 3007 additions and 842 deletions
Expand all files Collapse all files

7
.travis.yml
View File

@@ -1,4 +1,5 @@
language: rust
dist: xenial
env:
global:
- PROJECT_NAME: ripgrep
@@ -62,13 +63,13 @@ matrix:
# Minimum Rust supported channel. We enable these to make sure ripgrep
# continues to work on the advertised minimum Rust version.
- os: linux
rust: 1.32.0
rust: 1.34.0
env: TARGET=x86_64-unknown-linux-gnu
- os: linux
rust: 1.32.0
rust: 1.34.0
env: TARGET=x86_64-unknown-linux-musl
- os: linux
rust: 1.32.0
rust: 1.34.0
env: TARGET=arm-unknown-linux-gnueabihf GCC_VERSION=4.8
addons:
apt:

80
CHANGELOG.md
View File

@@ -1,6 +1,20 @@
0.11.0 (TBD)
11.0.0 (TBD)
============
TODO.
ripgrep 11 is a new major version release of ripgrep that contains many bug
fixes, some performance improvements and a few feature enhancements. Notably,
ripgrep's user experience for binary file filtering has been improved. See the
[guide's new section on binary data](GUIDE.md#binary-data) for more details.
This release also marks a change in ripgrep's versioning. Where as the previous
version was `0.10.0`, this version is `11.0.0`. Moving forward, ripgrep's
major version will be increased a few times per year. ripgrep will continue to
be conservative with respect to backwards compatibility, but may occasionally
introduce breaking changes, which will always be documented in this CHANGELOG.
See [issue 1172](https://github.com/BurntSushi/ripgrep/issues/1172) for a bit
more detail on why this versioning change was made.
This release increases the **minimum supported Rust version** from 1.28.0 to
1.34.0.
**BREAKING CHANGES**:
@@ -11,45 +25,91 @@ TODO.
error (e.g., regex syntax error). One exception to this is if ripgrep is run
with `-q/--quiet`. In that case, if an error occurs and a match is found,
then ripgrep will exit with a `0` exit status code.
* Supplying the `-u/--unrestricted` flag three times is now equivalent to
supplying `--no-ignore --hidden --binary`. Previously, `-uuu` was equivalent
to `--no-ignore --hidden --text`. The difference is that `--binary` disables
binary file filtering without potentially dumping binary data into your
terminal. That is, `rg -uuu foo` should now be equivalent to `grep -r foo`.
* The `avx-accel` feature of ripgrep has been removed since it is no longer
necessary. All uses of AVX in ripgrep are now enabled automatically via
runtime CPU feature detection. The `simd-accel` feature does remain
available, however, it does increase compilation times substantially at the
moment.
Performance improvements:
* [PERF #497](https://github.com/BurntSushi/ripgrep/issues/497),
[PERF #838](https://github.com/BurntSushi/ripgrep/issues/838):
Make `rg -F -f dictionary-of-literals` much faster.
Feature enhancements:
* Added or improved file type filtering for Apache Thrift, ASP, Bazel, Brotli,
BuildStream, bzip2, C, C++, Cython, gzip, Java, Make, Postscript, QML, Tex,
XML, xz, zig and zstd.
* [FEATURE #855](https://github.com/BurntSushi/ripgrep/issues/855):
Add `--binary` flag for disabling binary file filtering.
* [FEATURE #1078](https://github.com/BurntSushi/ripgrep/pull/1078):
Add `--max-columns-preview` flag for showing a preview of long lines.
* [FEATURE #1099](https://github.com/BurntSushi/ripgrep/pull/1099):
Add support for Brotli and Zstd to the `-z/--search-zip` flag.
* [FEATURE #1138](https://github.com/BurntSushi/ripgrep/pull/1138):
Add `--no-ignore-dot` flag for ignoring `.ignore` files.
* [FEATURE #1155](https://github.com/BurntSushi/ripgrep/pull/1155):
Add `--auto-hybrid-regex` flag for automatically falling back to PCRE2.
* [FEATURE #1159](https://github.com/BurntSushi/ripgrep/pull/1159):
ripgrep's exit status logic should now match GNU grep. See updated man page.
* [FEATURE #1170](https://github.com/BurntSushi/ripgrep/pull/1170):
Add `--ignore-file-case-insensitive` for case insensitive .ignore globs.
* [FEATURE #1164](https://github.com/BurntSushi/ripgrep/pull/1164):
Add `--ignore-file-case-insensitive` for case insensitive ignore globs.
* [FEATURE #1185](https://github.com/BurntSushi/ripgrep/pull/1185):
Add `-I` flag as a short option for the `--no-filename` flag.
* [FEATURE #1207](https://github.com/BurntSushi/ripgrep/pull/1207):
Add `none` value to `-E/--encoding` to forcefully disable all transcoding.
* [FEATURE da9d7204](https://github.com/BurntSushi/ripgrep/commit/da9d7204):
Add `--pcre2-version` for querying showing PCRE2 version information.
Bug fixes:
* [BUG #306](https://github.com/BurntSushi/ripgrep/issues/306),
[BUG #855](https://github.com/BurntSushi/ripgrep/issues/855):
Improve the user experience for ripgrep's binary file filtering.
* [BUG #373](https://github.com/BurntSushi/ripgrep/issues/373),
[BUG #1098](https://github.com/BurntSushi/ripgrep/issues/1098):
`**` is now accepted as valid syntax anywhere in a glob.
* [BUG #916](https://github.com/BurntSushi/ripgrep/issues/916):
ripgrep no longer hangs when searching `/proc` with a zombie process present.
* [BUG #1052](https://github.com/BurntSushi/ripgrep/issues/1052):
Fix bug where ripgrep could panic when transcoding UTF-16 files.
* [BUG #1055](https://github.com/BurntSushi/ripgrep/issues/1055):
Suggest `-U/--multiline` when a pattern contains a `\n`.
* [BUG #1063](https://github.com/BurntSushi/ripgrep/issues/1063):
Always strip a BOM if it's present, even for UTF-8.
* [BUG #1064](https://github.com/BurntSushi/ripgrep/issues/1064):
Fix inner literal detection that could lead to incorrect matches.
* [BUG #1079](https://github.com/BurntSushi/ripgrep/issues/1079):
Fixes a bug where the order of globs could result in missing a match.
* [BUG #1089](https://github.com/BurntSushi/ripgrep/issues/1089):
Fix another bug where ripgrep could panic when transcoding UTF-16 files.
* [BUG #1091](https://github.com/BurntSushi/ripgrep/issues/1091):
Add note about inverted flags to the man page.
* [BUG #1093](https://github.com/BurntSushi/ripgrep/pull/1093):
Fix handling of literal slashes in gitignore patterns.
* [BUG #1095](https://github.com/BurntSushi/ripgrep/issues/1095):
Fix corner cases involving the `--crlf` flag.
* [BUG #1101](https://github.com/BurntSushi/ripgrep/issues/1101):
Fix AsciiDoc escaping for man page output.
* [BUG #1103](https://github.com/BurntSushi/ripgrep/issues/1103):
Clarify what `--encoding auto` does.
* [BUG #1106](https://github.com/BurntSushi/ripgrep/issues/1106):
`--files-with-matches` and `--files-without-match` work with one file.
* [BUG #1093](https://github.com/BurntSushi/ripgrep/pull/1093):
Fix handling of literal slashes in gitignore patterns.
* [BUG #1121](https://github.com/BurntSushi/ripgrep/issues/1121):
Fix bug that was triggering Windows antimalware when using the --files flag.
Fix bug that was triggering Windows antimalware when using the `--files`
flag.
* [BUG #1125](https://github.com/BurntSushi/ripgrep/issues/1125),
[BUG #1159](https://github.com/BurntSushi/ripgrep/issues/1159):
ripgrep shouldn't panic for `rg -h | rg` and should emit correct exit status.
* [BUG #1144](https://github.com/BurntSushi/ripgrep/issues/1144):
Fixes a bug where line numbers could be wrong on big-endian machines.
* [BUG #1154](https://github.com/BurntSushi/ripgrep/issues/1154):
Windows files with "hidden" attribute are now treated as hidden.
* [BUG #1173](https://github.com/BurntSushi/ripgrep/issues/1173):
@@ -58,6 +118,12 @@ Bug fixes:
Fix handling of repeated `**` patterns in gitignore files.
* [BUG #1176](https://github.com/BurntSushi/ripgrep/issues/1176):
Fix bug where `-F`/`-x` weren't applied to patterns given via `-f`.
* [BUG #1189](https://github.com/BurntSushi/ripgrep/issues/1189):
Document cases where ripgrep may use a lot of memory.
* [BUG #1203](https://github.com/BurntSushi/ripgrep/issues/1203):
Fix a matching bug related to the suffix literal optimization.
* [BUG 8f14cb18](https://github.com/BurntSushi/ripgrep/commit/8f14cb18):
Increase the default stack size for PCRE2's JIT.
0.10.0 (2018-09-07)

342
Cargo.lock generated
View File

@@ -2,10 +2,10 @@
# It is not intended for manual editing.
[[package]]
name = "aho-corasick"
version = "0.6.9"
version = "0.7.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"memchr 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
"memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -13,9 +13,9 @@ name = "atty"
version = "0.2.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
"termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -36,6 +36,16 @@ name = "bitflags"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "bstr"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex-automata 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "bytecount"
version = "0.5.1"
@@ -48,22 +58,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "cc"
version = "1.0.29"
version = "1.0.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "cfg-if"
version = "0.1.6"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "clap"
version = "2.32.0"
version = "2.33.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
"strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
"textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
"strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
"textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
@@ -81,7 +91,7 @@ version = "0.3.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
"smallvec 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
"smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -89,25 +99,25 @@ name = "crossbeam-utils"
version = "0.6.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding_rs"
version = "0.8.16"
version = "0.8.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
"cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
"packed_simd 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding_rs_io"
version = "0.1.4"
version = "0.1.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"encoding_rs 0.8.16 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding_rs 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -122,19 +132,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "glob"
version = "0.2.11"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "globset"
version = "0.4.2"
version = "0.4.3"
dependencies = [
"aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
"aho-corasick 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
"bstr 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
"glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
"glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"memchr 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -156,10 +166,11 @@ name = "grep-cli"
version = "0.1.1"
dependencies = [
"atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
"globset 0.4.2",
"lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bstr 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"globset 0.4.3",
"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"same-file 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
"termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -169,8 +180,8 @@ dependencies = [
name = "grep-matcher"
version = "0.1.1"
dependencies = [
"memchr 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -178,7 +189,7 @@ name = "grep-pcre2"
version = "0.1.2"
dependencies = [
"grep-matcher 0.1.1",
"pcre2 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"pcre2 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -186,12 +197,13 @@ name = "grep-printer"
version = "0.1.1"
dependencies = [
"base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
"bstr 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"grep-matcher 0.1.1",
"grep-regex 0.1.2",
"grep-searcher 0.1.3",
"serde 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
"termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
@@ -199,10 +211,11 @@ dependencies = [
name = "grep-regex"
version = "0.1.2"
dependencies = [
"aho-corasick 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
"grep-matcher 0.1.1",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex-syntax 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
"thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
@@ -211,15 +224,15 @@ dependencies = [
name = "grep-searcher"
version = "0.1.3"
dependencies = [
"bstr 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"bytecount 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding_rs 0.8.16 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding_rs_io 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding_rs 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding_rs_io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
"grep-matcher 0.1.1",
"grep-regex 0.1.2",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"memchr 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
"memmap 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -227,13 +240,13 @@ name = "ignore"
version = "0.4.6"
dependencies = [
"crossbeam-channel 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
"globset 0.4.2",
"lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"globset 0.4.3",
"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -747,39 +729,35 @@ dependencies = [
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1
Cargo.toml
View File

@@ -46,6 +46,7 @@ members = [
]
[dependencies]
bstr = "0.1.2"
grep = { version = "0.2.3", path = "grep" }
ignore = { version = "0.4.4", path = "ignore" }
lazy_static = "1.1.0"

112
GUIDE.md
View File

@@ -18,6 +18,7 @@ translatable to any command line shell environment.
* [Replacements](#replacements)
* [Configuration file](#configuration-file)
* [File encoding](#file-encoding)
* [Binary data](#binary-data)
* [Common options](#common-options)
@@ -525,9 +526,9 @@ config file. Once the environment variable is set, open the file and just type
in the flags you want set automatically. There are only two rules for
describing the format of the config file:
1. Every line is a shell argument, after trimming ASCII whitespace.
2. Lines starting with `#` (optionally preceded by any amount of
ASCII whitespace) are ignored.
1. Every line is a shell argument, after trimming whitespace.
2. Lines starting with `#` (optionally preceded by any amount of whitespace)
are ignored.
In particular, there is no escaping. Each line is given to ripgrep as a single
command line argument verbatim.
@@ -537,8 +538,9 @@ formatting peculiarities:
```
$ cat $HOME/.ripgreprc
# Don't let ripgrep vomit really long lines to my terminal.
# Don't let ripgrep vomit really long lines to my terminal, and show a preview.
--max-columns=150
--max-columns-preview
# Add my 'web' type.
--type-add
@@ -603,7 +605,7 @@ topic, but we can try to summarize its relevancy to ripgrep:
* Files are generally just a bundle of bytes. There is no reliable way to know
their encoding.
* Either the encoding of the pattern must match the encoding of the files being
searched, or a form of transcoding must be performed converts either the
searched, or a form of transcoding must be performed that converts either the
pattern or the file to the same encoding as the other.
* ripgrep tends to work best on plain text files, and among plain text files,
the most popular encodings likely consist of ASCII, latin1 or UTF-8. As
@@ -626,12 +628,15 @@ given, which is the default:
they correspond to a UTF-16 BOM, then ripgrep will transcode the contents of
the file from UTF-16 to UTF-8, and then execute the search on the transcoded
version of the file. (This incurs a performance penalty since transcoding
is slower than regex searching.)
is slower than regex searching.) If the file contains invalid UTF-16, then
the Unicode replacement codepoint is substituted in place of invalid code
units.
* To handle other cases, ripgrep provides a `-E/--encoding` flag, which permits
you to specify an encoding from the
[Encoding Standard](https://encoding.spec.whatwg.org/#concept-encoding-get).
ripgrep will assume *all* files searched are the encoding specified and
will perform a transcoding step just like in the UTF-16 case described above.
ripgrep will assume *all* files searched are the encoding specified (unless
the file has a BOM) and will perform a transcoding step just like in the
UTF-16 case described above.
By default, ripgrep will not require its input be valid UTF-8. That is, ripgrep
can and will search arbitrary bytes. The key here is that if you're searching
@@ -641,9 +646,26 @@ pattern won't find anything. With all that said, this mode of operation is
important, because it lets you find ASCII or UTF-8 *within* files that are
otherwise arbitrary bytes.
As a special case, the `-E/--encoding` flag supports the value `none`, which
will completely disable all encoding related logic, including BOM sniffing.
When `-E/--encoding` is set to `none`, ripgrep will search the raw bytes of
the underlying file with no transcoding step. For example, here's how you might
search the raw UTF-16 encoding of the string `Шерлок`:
```
$ rg '(?-u)\(\x045\x04@\x04;\x04>\x04:\x04' -E none -a some-utf16-file
```
Of course, that's just an example meant to show how one can drop down into
raw bytes. Namely, the simpler command works as you might expect automatically:
```
$ rg 'Шерлок' some-utf16-file
```
Finally, it is possible to disable ripgrep's Unicode support from within the
pattern regular expression. For example, let's say you wanted `.` to match any
byte rather than any Unicode codepoint. (You might want this while searching a
regular expression. For example, let's say you wanted `.` to match any byte
rather than any Unicode codepoint. (You might want this while searching a
binary file, since `.` by default will not match invalid UTF-8.) You could do
this by disabling Unicode via a regular expression flag:
@@ -660,6 +682,76 @@ $ rg '\w(?-u:\w)\w'
```
### Binary data
In addition to skipping hidden files and files in your `.gitignore` by default,
ripgrep also attempts to skip binary files. ripgrep does this by default
because binary files (like PDFs or images) are typically not things you want to
search when searching for regex matches. Moreover, if content in a binary file
did match, then it's possible for undesirable binary data to be printed to your
terminal and wreak havoc.
Unfortunately, unlike skipping hidden files and respecting your `.gitignore`
rules, a file cannot as easily be classified as binary. In order to figure out
whether a file is binary, the most effective heuristic that balances
correctness with performance is to simply look for `NUL` bytes. At that point,
the determination is simple: a file is considered "binary" if and only if it
contains a `NUL` byte somewhere in its contents.
The issue is that while most binary files will have a `NUL` byte toward the
beginning of its contents, this is not necessarily true. The `NUL` byte might
be the very last byte in a large file, but that file is still considered
binary. While this leads to a fair amount of complexity inside ripgrep's
implementation, it also results in some unintuitive user experiences.
At a high level, ripgrep operates in three different modes with respect to
binary files:
1. The default mode is to attempt to remove binary files from a search
completely. This is meant to mirror how ripgrep removes hidden files and
files in your `.gitignore` automatically. That is, as soon as a file is
detected as binary, searching stops. If a match was already printed (because
it was detected long before a `NUL` byte), then ripgrep will print a warning
message indicating that the search stopped prematurely. This default mode
**only applies to files searched by ripgrep as a result of recursive
directory traversal**, which is consistent with ripgrep's other automatic
filtering. For example, `rg foo .file` will search `.file` even though it
is hidden. Similarly, `rg foo binary-file` search `binary-file` in "binary"
mode automatically.
2. Binary mode is similar to the default mode, except it will not always
stop searching after it sees a `NUL` byte. Namely, in this mode, ripgrep
will continue searching a file that is known to be binary until the first
of two conditions is met: 1) the end of the file has been reached or 2) a
match is or has been seen. This means that in binary mode, if ripgrep
reports no matches, then there are no matches in the file. When a match does
occur, ripgrep prints a message similar to one it prints when in its default
mode indicating that the search has stopped prematurely. This mode can be
forcefully enabled for all files with the `--binary` flag. The purpose of
binary mode is to provide a way to discover matches in all files, but to
avoid having binary data dumped into your terminal.
3. Text mode completely disables all binary detection and searches all files
as if they were text. This is useful when searching a file that is
predominantly text but contains a `NUL` byte, or if you are specifically
trying to search binary data. This mode can be enabled with the `-a/--text`
flag. Note that when using this mode on very large binary files, it is
possible for ripgrep to use a lot of memory.
Unfortunately, there is one additional complexity in ripgrep that can make it
difficult to reason about binary files. That is, the way binary detection works
depends on the way that ripgrep searches your files. Specifically:
* When ripgrep uses memory maps, then binary detection is only performed on the
first few kilobytes of the file in addition to every matching line.
* When ripgrep doesn't use memory maps, then binary detection is performed on
all bytes searched.
This means that whether a file is detected as binary or not can change based
on the internal search strategy used by ripgrep. If you prefer to keep
ripgrep's binary file detection consistent, then you can disable memory maps
via the `--no-mmap` flag. (The cost will be a small performance regression when
searching very large files on some platforms.)
### Common options
ripgrep has a lot of flags. Too many to keep in your head at once. This section

15
README.md
View File

@@ -1,15 +1,17 @@
ripgrep (rg)
------------
ripgrep is a line-oriented search tool that recursively searches your current
directory for a regex pattern while respecting your gitignore rules. ripgrep
directory for a regex pattern. By default, ripgrep will respect your .gitignore
and automatically skip hidden files/directories and binary files. ripgrep
has first class support on Windows, macOS and Linux, with binary downloads
available for [every release](https://github.com/BurntSushi/ripgrep/releases).
ripgrep is similar to other popular search tools like The Silver Searcher,
ack and grep.
ripgrep is similar to other popular search tools like The Silver Searcher, ack
and grep.
[![Linux build status](https://travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![Crates.io](https://img.shields.io/crates/v/ripgrep.svg)](https://crates.io/crates/ripgrep)
[![Packaging status](https://repology.org/badge/tiny-repos/ripgrep.svg)](https://repology.org/project/ripgrep/badges)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
@@ -338,7 +340,7 @@ If you're a **NetBSD** user, then you can install ripgrep from
If you're a **Rust programmer**, ripgrep can be installed with `cargo`.
* Note that the minimum supported version of Rust for ripgrep is **1.32.0**,
* Note that the minimum supported version of Rust for ripgrep is **1.34.0**,
although ripgrep may work with older versions.
* Note that the binary may be bigger than expected because it contains debug
symbols. This is intentional. To remove debug symbols and therefore reduce
@@ -348,9 +350,6 @@ If you're a **Rust programmer**, ripgrep can be installed with `cargo`.
$ cargo install ripgrep
```
When compiling with Rust 1.27 or newer, this will automatically enable SIMD
optimizations for search.
ripgrep isn't currently in any other package repositories.
[I'd like to change that](https://github.com/BurntSushi/ripgrep/issues/10).
@@ -359,7 +358,7 @@ ripgrep isn't currently in any other package repositories.
ripgrep is written in Rust, so you'll need to grab a
[Rust installation](https://www.rust-lang.org/) in order to compile it.
ripgrep compiles with Rust 1.32.0 (stable) or newer. In general, ripgrep tracks
ripgrep compiles with Rust 1.34.0 (stable) or newer. In general, ripgrep tracks
the latest stable release of the Rust compiler.
To build ripgrep:

15
complete/_rg
View File

@@ -43,6 +43,7 @@ _rg() {
+ '(exclusive)' # Misc. fully exclusive options
'(: * -)'{-h,--help}'[display help information]'
'(: * -)'{-V,--version}'[display version information]'
'(: * -)'--pcre2-version'[print the version of PCRE2 used by ripgrep, if available]'
+ '(buffered)' # buffering options
'--line-buffered[force line buffering]'
@@ -85,7 +86,7 @@ _rg() {
+ '(file-name)' # File-name options
{-H,--with-filename}'[show file name for matches]'
"--no-filename[don't show file name for matches]"
{-I,--no-filename}"[don't show file name for matches]"
+ '(file-system)' # File system options
"--one-file-system[don't descend into directories on other file systems]"
@@ -111,6 +112,10 @@ _rg() {
'--hidden[search hidden files and directories]'
$no"--no-hidden[don't search hidden files and directories]"
+ '(hybrid)' # hybrid regex options
'--auto-hybrid-regex[dynamically use PCRE2 if necessary]'
$no"--no-auto-hybrid-regex[don't dynamically use PCRE2 if necessary]"
+ '(ignore)' # Ignore-file options
"(--no-ignore-global --no-ignore-parent --no-ignore-vcs --no-ignore-dot)--no-ignore[don't respect ignore files]"
$no'(--ignore-global --ignore-parent --ignore-vcs --ignore-dot)--ignore[respect ignore files]'
@@ -148,6 +153,10 @@ _rg() {
$no"--no-crlf[don't use CRLF as line terminator]"
'(text)--null-data[use NUL as line terminator]'
+ '(max-columns-preview)' # max column preview options
'--max-columns-preview[show preview for long lines (with -M)]'
$no"--no-max-columns-preview[don't show preview for long lines (with -M)]"
+ '(max-depth)' # Directory-depth options
'--max-depth=[specify max number of directories to descend]:number of directories'
'!--maxdepth=:number of directories'
@@ -227,6 +236,8 @@ _rg() {
+ '(text)' # Binary-search options
{-a,--text}'[search binary files as if they were text]'
"--binary[search binary files, don't print binary data]"
$no"--no-binary[don't search binary files]"
$no"(--null-data)--no-text[don't search binary files as if they were text]"
+ '(threads)' # Thread-count options
@@ -378,7 +389,7 @@ _rg_encodings() {
shift{-,_}jis csshiftjis {,x-}sjis ms_kanji ms932
utf{,-}8 utf-16{,be,le} unicode-1-1-utf-8
windows-{31j,874,949,125{0..8}} dos-874 tis-620 ansi_x3.4-1968
x-user-defined auto
x-user-defined auto none
)
_wanted encodings expl encoding compadd -a "$@" - _encodings

22
doc/rg.1.txt.tpl
View File

@@ -41,6 +41,9 @@ configuration file. The file can specify one shell argument per line. Lines
starting with *#* are ignored. For more details, see the man page or the
*README*.
Tip: to disable all smart filtering and make ripgrep behave a bit more like
classical grep, use *rg -uuu*.
REGEX SYNTAX
------------
@@ -107,9 +110,9 @@ ripgrep supports reading configuration files that change ripgrep's default
behavior. The format of the configuration file is an "rc" style and is very
simple. It is defined by two rules:
1. Every line is a shell argument, after trimming ASCII whitespace.
1. Every line is a shell argument, after trimming whitespace.
2. Lines starting with *#* (optionally preceded by any amount of
ASCII whitespace) are ignored.
whitespace) are ignored.
ripgrep will look for a single configuration file if and only if the
*RIPGREP_CONFIG_PATH* environment variable is set and is non-empty.
@@ -189,6 +192,21 @@ file that is simultaneously truncated. This behavior can be avoided by passing
the *--no-mmap* flag which will forcefully disable the use of memory maps in
all cases.
ripgrep may use a large amount of memory depending on a few factors. Firstly,
if ripgrep uses parallelism for search (the default), then the entire output
for each individual file is buffered into memory in order to prevent
interleaving matches in the output. To avoid this, you can disable parallelism
with the *-j1* flag. Secondly, ripgrep always needs to have at least a single
line in memory in order to execute a search. A file with a very long line can
thus cause ripgrep to use a lot of memory. Generally, this only occurs when
searching binary data with the *-a* flag enabled. (When the *-a* flag isn't
enabled, ripgrep will replace all NUL bytes with line terminators, which
typically prevents exorbitant memory usage.) Thirdly, when ripgrep searches
a large file using a memory map, the process will report its resident memory
usage as the size of the file. However, this does not mean ripgrep actually
needed to use that much memory; the operating system will generally handle this
for you.
VERSION
-------

10
globset/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package]
name = "globset"
version = "0.4.2" #:version
version = "0.4.3" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
Cross platform single glob and glob set matching. Glob set matching is the
@@ -19,14 +19,14 @@ name = "globset"
bench = false
[dependencies]
aho-corasick = "0.6.8"
aho-corasick = "0.7.3"
bstr = { version = "0.1.2", default-features = false, features = ["std"] }
fnv = "1.0.6"
log = "0.4.5"
memchr = "2.1.0"
regex = "1.1.0"
regex = "1.1.5"
[dev-dependencies]
glob = "0.2.11"
glob = "0.3.0"
[features]
simd-accel = []

4
globset/src/glob.rs
View File

@@ -120,7 +120,7 @@ impl GlobMatcher {
/// Tests whether the given path matches this pattern or not.
pub fn is_match_candidate(&self, path: &Candidate) -> bool {
self.re.is_match(&path.path)
self.re.is_match(path.path.as_bytes())
}
}
@@ -145,7 +145,7 @@ impl GlobStrategic {
/// Tests whether the given path matches this pattern or not.
fn is_match_candidate(&self, candidate: &Candidate) -> bool {
let byte_path = &*candidate.path;
let byte_path = candidate.path.as_bytes();
match self.strategy {
MatchStrategy::Literal(ref lit) => lit.as_bytes() == byte_path,

88
globset/src/lib.rs
View File

@@ -104,27 +104,25 @@ or to enable case insensitive matching.
#![deny(missing_docs)]
extern crate aho_corasick;
extern crate bstr;
extern crate fnv;
#[macro_use]
extern crate log;
extern crate memchr;
extern crate regex;
use std::borrow::Cow;
use std::collections::{BTreeMap, HashMap};
use std::error::Error as StdError;
use std::ffi::OsStr;
use std::fmt;
use std::hash;
use std::path::Path;
use std::str;
use aho_corasick::{Automaton, AcAutomaton, FullAcAutomaton};
use aho_corasick::AhoCorasick;
use bstr::{B, BStr, BString};
use regex::bytes::{Regex, RegexBuilder, RegexSet};
use pathutil::{
file_name, file_name_ext, normalize_path, os_str_bytes, path_bytes,
};
use pathutil::{file_name, file_name_ext, normalize_path};
use glob::MatchStrategy;
pub use glob::{Glob, GlobBuilder, GlobMatcher};
@@ -294,6 +292,7 @@ pub struct GlobSet {
impl GlobSet {
/// Create an empty `GlobSet`. An empty set matches nothing.
#[inline]
pub fn empty() -> GlobSet {
GlobSet {
len: 0,
@@ -302,11 +301,13 @@ impl GlobSet {
}
/// Returns true if this set is empty, and therefore matches nothing.
#[inline]
pub fn is_empty(&self) -> bool {
self.len == 0
}
/// Returns the number of globs in this set.
#[inline]
pub fn len(&self) -> usize {
self.len
}
@@ -489,24 +490,25 @@ impl GlobSetBuilder {
/// path against multiple globs or sets of globs.
#[derive(Clone, Debug)]
pub struct Candidate<'a> {
path: Cow<'a, [u8]>,
basename: Cow<'a, [u8]>,
ext: Cow<'a, [u8]>,
path: Cow<'a, BStr>,
basename: Cow<'a, BStr>,
ext: Cow<'a, BStr>,
}
impl<'a> Candidate<'a> {
/// Create a new candidate for matching from the given path.
pub fn new<P: AsRef<Path> + ?Sized>(path: &'a P) -> Candidate<'a> {
let path = path.as_ref();
let basename = file_name(path).unwrap_or(OsStr::new(""));
let path = normalize_path(BString::from_path_lossy(path.as_ref()));
let basename = file_name(&path).unwrap_or(Cow::Borrowed(B("")));
let ext = file_name_ext(&basename).unwrap_or(Cow::Borrowed(B("")));
Candidate {
path: normalize_path(path_bytes(path)),
basename: os_str_bytes(basename),
ext: file_name_ext(basename).unwrap_or(Cow::Borrowed(b"")),
path: path,
basename: basename,
ext: ext,
}
}
fn path_prefix(&self, max: usize) -> &[u8] {
fn path_prefix(&self, max: usize) -> &BStr {
if self.path.len() <= max {
&*self.path
} else {
@@ -514,7 +516,7 @@ impl<'a> Candidate<'a> {
}
}
fn path_suffix(&self, max: usize) -> &[u8] {
fn path_suffix(&self, max: usize) -> &BStr {
if self.path.len() <= max {
&*self.path
} else {
@@ -575,12 +577,12 @@ impl LiteralStrategy {
}
fn is_match(&self, candidate: &Candidate) -> bool {
self.0.contains_key(&*candidate.path)
self.0.contains_key(candidate.path.as_bytes())
}
#[inline(never)]
fn matches_into(&self, candidate: &Candidate, matches: &mut Vec<usize>) {
if let Some(hits) = self.0.get(&*candidate.path) {
if let Some(hits) = self.0.get(candidate.path.as_bytes()) {
matches.extend(hits);
}
}
@@ -602,7 +604,7 @@ impl BasenameLiteralStrategy {
if candidate.basename.is_empty() {
return false;
}
self.0.contains_key(&*candidate.basename)
self.0.contains_key(candidate.basename.as_bytes())
}
#[inline(never)]
@@ -610,7 +612,7 @@ impl BasenameLiteralStrategy {
if candidate.basename.is_empty() {
return;
}
if let Some(hits) = self.0.get(&*candidate.basename) {
if let Some(hits) = self.0.get(candidate.basename.as_bytes()) {
matches.extend(hits);
}
}
@@ -632,7 +634,7 @@ impl ExtensionStrategy {
if candidate.ext.is_empty() {
return false;
}
self.0.contains_key(&*candidate.ext)
self.0.contains_key(candidate.ext.as_bytes())
}
#[inline(never)]
@@ -640,7 +642,7 @@ impl ExtensionStrategy {
if candidate.ext.is_empty() {
return;
}
if let Some(hits) = self.0.get(&*candidate.ext) {
if let Some(hits) = self.0.get(candidate.ext.as_bytes()) {
matches.extend(hits);
}
}
@@ -648,7 +650,7 @@ impl ExtensionStrategy {
#[derive(Clone, Debug)]
struct PrefixStrategy {
matcher: FullAcAutomaton<Vec<u8>>,
matcher: AhoCorasick,
map: Vec<usize>,
longest: usize,
}
@@ -656,8 +658,8 @@ struct PrefixStrategy {
impl PrefixStrategy {
fn is_match(&self, candidate: &Candidate) -> bool {
let path = candidate.path_prefix(self.longest);
for m in self.matcher.find_overlapping(path) {
if m.start == 0 {
for m in self.matcher.find_overlapping_iter(path) {
if m.start() == 0 {
return true;
}
}
@@ -666,9 +668,9 @@ impl PrefixStrategy {
fn matches_into(&self, candidate: &Candidate, matches: &mut Vec<usize>) {
let path = candidate.path_prefix(self.longest);
for m in self.matcher.find_overlapping(path) {
if m.start == 0 {
matches.push(self.map[m.pati]);
for m in self.matcher.find_overlapping_iter(path) {
if m.start() == 0 {
matches.push(self.map[m.pattern()]);
}
}
}
@@ -676,7 +678,7 @@ impl PrefixStrategy {
#[derive(Clone, Debug)]
struct SuffixStrategy {
matcher: FullAcAutomaton<Vec<u8>>,
matcher: AhoCorasick,
map: Vec<usize>,
longest: usize,
}
@@ -684,8 +686,8 @@ struct SuffixStrategy {
impl SuffixStrategy {
fn is_match(&self, candidate: &Candidate) -> bool {
let path = candidate.path_suffix(self.longest);
for m in self.matcher.find_overlapping(path) {
if m.end == path.len() {
for m in self.matcher.find_overlapping_iter(path) {
if m.end() == path.len() {
return true;
}
}
@@ -694,9 +696,9 @@ impl SuffixStrategy {
fn matches_into(&self, candidate: &Candidate, matches: &mut Vec<usize>) {
let path = candidate.path_suffix(self.longest);
for m in self.matcher.find_overlapping(path) {
if m.end == path.len() {
matches.push(self.map[m.pati]);
for m in self.matcher.find_overlapping_iter(path) {
if m.end() == path.len() {
matches.push(self.map[m.pattern()]);
}
}
}
@@ -710,11 +712,11 @@ impl RequiredExtensionStrategy {
if candidate.ext.is_empty() {
return false;
}
match self.0.get(&*candidate.ext) {
match self.0.get(candidate.ext.as_bytes()) {
None => false,
Some(regexes) => {
for &(_, ref re) in regexes {
if re.is_match(&*candidate.path) {
if re.is_match(candidate.path.as_bytes()) {
return true;
}
}
@@ -728,9 +730,9 @@ impl RequiredExtensionStrategy {
if candidate.ext.is_empty() {
return;
}
if let Some(regexes) = self.0.get(&*candidate.ext) {
if let Some(regexes) = self.0.get(candidate.ext.as_bytes()) {
for &(global_index, ref re) in regexes {
if re.is_match(&*candidate.path) {
if re.is_match(candidate.path.as_bytes()) {
matches.push(global_index);
}
}
@@ -746,11 +748,11 @@ struct RegexSetStrategy {
impl RegexSetStrategy {
fn is_match(&self, candidate: &Candidate) -> bool {
self.matcher.is_match(&*candidate.path)
self.matcher.is_match(candidate.path.as_bytes())
}
fn matches_into(&self, candidate: &Candidate, matches: &mut Vec<usize>) {
for i in self.matcher.matches(&*candidate.path) {
for i in self.matcher.matches(candidate.path.as_bytes()) {
matches.push(self.map[i]);
}
}
@@ -781,18 +783,16 @@ impl MultiStrategyBuilder {
}
fn prefix(self) -> PrefixStrategy {
let it = self.literals.into_iter().map(|s| s.into_bytes());
PrefixStrategy {
matcher: AcAutomaton::new(it).into_full(),
matcher: AhoCorasick::new_auto_configured(&self.literals),
map: self.map,
longest: self.longest,
}
}
fn suffix(self) -> SuffixStrategy {
let it = self.literals.into_iter().map(|s| s.into_bytes());
SuffixStrategy {
matcher: AcAutomaton::new(it).into_full(),
matcher: AhoCorasick::new_auto_configured(&self.literals),
map: self.map,
longest: self.longest,
}

103
globset/src/pathutil.rs
View File

@@ -1,41 +1,26 @@
use std::borrow::Cow;
use std::ffi::OsStr;
use std::path::Path;
use bstr::BStr;
/// The final component of the path, if it is a normal file.
///
/// If the path terminates in ., .., or consists solely of a root of prefix,
/// file_name will return None.
#[cfg(unix)]
pub fn file_name<'a, P: AsRef<Path> + ?Sized>(
path: &'a P,
) -> Option<&'a OsStr> {
use std::os::unix::ffi::OsStrExt;
use memchr::memrchr;
let path = path.as_ref().as_os_str().as_bytes();
pub fn file_name<'a>(path: &Cow<'a, BStr>) -> Option<Cow<'a, BStr>> {
if path.is_empty() {
return None;
} else if path.len() == 1 && path[0] == b'.' {
return None;
} else if path.last() == Some(&b'.') {
return None;
} else if path.len() >= 2 && &path[path.len() - 2..] == &b".."[..] {
} else if path.last() == Some(b'.') {
return None;
}
let last_slash = memrchr(b'/', path).map(|i| i + 1).unwrap_or(0);
Some(OsStr::from_bytes(&path[last_slash..]))
}
/// The final component of the path, if it is a normal file.
///
/// If the path terminates in ., .., or consists solely of a root of prefix,
/// file_name will return None.
#[cfg(not(unix))]
pub fn file_name<'a, P: AsRef<Path> + ?Sized>(
path: &'a P,
) -> Option<&'a OsStr> {
path.as_ref().file_name()
let last_slash = path.rfind_byte(b'/').map(|i| i + 1).unwrap_or(0);
Some(match *path {
Cow::Borrowed(path) => Cow::Borrowed(&path[last_slash..]),
Cow::Owned(ref path) => {
let mut path = path.clone();
path.drain_bytes(..last_slash);
Cow::Owned(path)
}
})
}
/// Return a file extension given a path's file name.
@@ -54,59 +39,28 @@ pub fn file_name<'a, P: AsRef<Path> + ?Sized>(
/// a pattern like `*.rs` is obviously trying to match files with a `rs`
/// extension, but it also matches files like `.rs`, which doesn't have an
/// extension according to std::path::Path::extension.
pub fn file_name_ext(name: &OsStr) -> Option<Cow<[u8]>> {
pub fn file_name_ext<'a>(name: &Cow<'a, BStr>) -> Option<Cow<'a, BStr>> {
if name.is_empty() {
return None;
}
let name = os_str_bytes(name);
let last_dot_at = {
let result = name
.iter().enumerate().rev()
.find(|&(_, &b)| b == b'.')
.map(|(i, _)| i);
match result {
None => return None,
Some(i) => i,
}
let last_dot_at = match name.rfind_byte(b'.') {
None => return None,
Some(i) => i,
};
Some(match name {
Some(match *name {
Cow::Borrowed(name) => Cow::Borrowed(&name[last_dot_at..]),
Cow::Owned(mut name) => {
name.drain(..last_dot_at);
Cow::Owned(ref name) => {
let mut name = name.clone();
name.drain_bytes(..last_dot_at);
Cow::Owned(name)
}
})
}
/// Return raw bytes of a path, transcoded to UTF-8 if necessary.
pub fn path_bytes(path: &Path) -> Cow<[u8]> {
os_str_bytes(path.as_os_str())
}
/// Return the raw bytes of the given OS string, possibly transcoded to UTF-8.
#[cfg(unix)]
pub fn os_str_bytes(s: &OsStr) -> Cow<[u8]> {
use std::os::unix::ffi::OsStrExt;
Cow::Borrowed(s.as_bytes())
}
/// Return the raw bytes of the given OS string, possibly transcoded to UTF-8.
#[cfg(not(unix))]
pub fn os_str_bytes(s: &OsStr) -> Cow<[u8]> {
// TODO(burntsushi): On Windows, OS strings are WTF-8, which is a superset
// of UTF-8, so even if we could get at the raw bytes, they wouldn't
// be useful. We *must* convert to UTF-8 before doing path matching.
// Unfortunate, but necessary.
match s.to_string_lossy() {
Cow::Owned(s) => Cow::Owned(s.into_bytes()),
Cow::Borrowed(s) => Cow::Borrowed(s.as_bytes()),
}
}
/// Normalizes a path to use `/` as a separator everywhere, even on platforms
/// that recognize other characters as separators.
#[cfg(unix)]
pub fn normalize_path(path: Cow<[u8]>) -> Cow<[u8]> {
pub fn normalize_path(path: Cow<BStr>) -> Cow<BStr> {
// UNIX only uses /, so we're good.
path
}
@@ -114,7 +68,7 @@ pub fn normalize_path(path: Cow<[u8]>) -> Cow<[u8]> {
/// Normalizes a path to use `/` as a separator everywhere, even on platforms
/// that recognize other characters as separators.
#[cfg(not(unix))]
pub fn normalize_path(mut path: Cow<[u8]>) -> Cow<[u8]> {
pub fn normalize_path(mut path: Cow<BStr>) -> Cow<BStr> {
use std::path::is_separator;
for i in 0..path.len() {
@@ -129,7 +83,8 @@ pub fn normalize_path(mut path: Cow<[u8]>) -> Cow<[u8]> {
#[cfg(test)]
mod tests {
use std::borrow::Cow;
use std::ffi::OsStr;
use bstr::{B, BString};
use super::{file_name_ext, normalize_path};
@@ -137,8 +92,9 @@ mod tests {
($name:ident, $file_name:expr, $ext:expr) => {
#[test]
fn $name() {
let got = file_name_ext(OsStr::new($file_name));
assert_eq!($ext.map(|s| Cow::Borrowed(s.as_bytes())), got);
let bs = BString::from($file_name);
let got = file_name_ext(&Cow::Owned(bs));
assert_eq!($ext.map(|s| Cow::Borrowed(B(s))), got);
}
};
}
@@ -153,7 +109,8 @@ mod tests {
($name:ident, $path:expr, $expected:expr) => {
#[test]
fn $name() {
let got = normalize_path(Cow::Owned($path.to_vec()));
let bs = BString::from_slice($path);
let got = normalize_path(Cow::Owned(bs));
assert_eq!($expected.to_vec(), got.into_owned());
}
};

3
grep-cli/Cargo.toml
View File

@@ -14,7 +14,8 @@ license = "Unlicense/MIT"
[dependencies]
atty = "0.2.11"
globset = { version = "0.4.2", path = "../globset" }
bstr = "0.1.2"
globset = { version = "0.4.3", path = "../globset" }
lazy_static = "1.1.0"
log = "0.4.5"
regex = "1.1"

74
grep-cli/src/escape.rs
View File

@@ -1,6 +1,8 @@
use std::ffi::OsStr;
use std::str;
use bstr::{BStr, BString};
/// A single state in the state machine used by `unescape`.
#[derive(Clone, Copy, Eq, PartialEq)]
enum State {
@@ -35,18 +37,16 @@ enum State {
///
/// assert_eq!(r"foo\nbar\xFFbaz", escape(b"foo\nbar\xFFbaz"));
/// ```
pub fn escape(mut bytes: &[u8]) -> String {
pub fn escape(bytes: &[u8]) -> String {
let bytes = BStr::new(bytes);
let mut escaped = String::new();
while let Some(result) = decode_utf8(bytes) {
match result {
Ok(cp) => {
escape_char(cp, &mut escaped);
bytes = &bytes[cp.len_utf8()..];
}
Err(byte) => {
escape_byte(byte, &mut escaped);
bytes = &bytes[1..];
for (s, e, ch) in bytes.char_indices() {
if ch == '\u{FFFD}' {
for b in bytes[s..e].bytes() {
escape_byte(b, &mut escaped);
}
} else {
escape_char(ch, &mut escaped);
}
}
escaped
@@ -56,19 +56,7 @@ pub fn escape(mut bytes: &[u8]) -> String {
///
/// This is like [`escape`](fn.escape.html), but accepts an OS string.
pub fn escape_os(string: &OsStr) -> String {
#[cfg(unix)]
fn imp(string: &OsStr) -> String {
use std::os::unix::ffi::OsStrExt;
escape(string.as_bytes())
}
#[cfg(not(unix))]
fn imp(string: &OsStr) -> String {
escape(string.to_string_lossy().as_bytes())
}
imp(string)
escape(BString::from_os_str_lossy(string).as_bytes())
}
/// Unescapes a string.
@@ -195,46 +183,6 @@ fn escape_byte(byte: u8, into: &mut String) {
}
}
/// Decodes the next UTF-8 encoded codepoint from the given byte slice.
///
/// If no valid encoding of a codepoint exists at the beginning of the given
/// byte slice, then the first byte is returned instead.
///
/// This returns `None` if and only if `bytes` is empty.
fn decode_utf8(bytes: &[u8]) -> Option<Result<char, u8>> {
if bytes.is_empty() {
return None;
}
let len = match utf8_len(bytes[0]) {
None => return Some(Err(bytes[0])),
Some(len) if len > bytes.len() => return Some(Err(bytes[0])),
Some(len) => len,
};
match str::from_utf8(&bytes[..len]) {
Ok(s) => Some(Ok(s.chars().next().unwrap())),
Err(_) => Some(Err(bytes[0])),
}
}
/// Given a UTF-8 leading byte, this returns the total number of code units
/// in the following encoded codepoint.
///
/// If the given byte is not a valid UTF-8 leading byte, then this returns
/// `None`.
fn utf8_len(byte: u8) -> Option<usize> {
if byte <= 0x7F {
Some(1)
} else if byte <= 0b110_11111 {
Some(2)
} else if byte <= 0b1110_1111 {
Some(3)
} else if byte <= 0b1111_0111 {
Some(4)
} else {
None
}
}
#[cfg(test)]
mod tests {
use super::{escape, unescape};

1
grep-cli/src/lib.rs
View File

@@ -159,6 +159,7 @@ error message is crafted that typically tells the user how to fix the problem.
#![deny(missing_docs)]
extern crate atty;
extern crate bstr;
extern crate globset;
#[macro_use]
extern crate lazy_static;

2
grep-pcre2/Cargo.toml
View File

@@ -14,4 +14,4 @@ license = "Unlicense/MIT"
[dependencies]
grep-matcher = { version = "0.1.1", path = "../grep-matcher" }
pcre2 = "0.1.1"
pcre2 = "0.2.0"

1
grep-pcre2/src/lib.rs
View File

@@ -10,6 +10,7 @@ extern crate pcre2;
pub use error::{Error, ErrorKind};
pub use matcher::{RegexCaptures, RegexMatcher, RegexMatcherBuilder};
pub use pcre2::{is_jit_available, version};
mod error;
mod matcher;

21
grep-pcre2/src/matcher.rs
View File

@@ -227,6 +227,27 @@ impl RegexMatcherBuilder {
self.builder.jit_if_available(yes);
self
}
/// Set the maximum size of PCRE2's JIT stack, in bytes. If the JIT is
/// not enabled, then this has no effect.
///
/// When `None` is given, no custom JIT stack will be created, and instead,
/// the default JIT stack is used. When the default is used, its maximum
/// size is 32 KB.
///
/// When this is set, then a new JIT stack will be created with the given
/// maximum size as its limit.
///
/// Increasing the stack size can be useful for larger regular expressions.
///
/// By default, this is set to `None`.
pub fn max_jit_stack_size(
&mut self,
bytes: Option<usize>,
) -> &mut RegexMatcherBuilder {
self.builder.max_jit_stack_size(bytes);
self
}
}
/// An implementation of the `Matcher` trait using PCRE2.

1
grep-printer/Cargo.toml
View File

@@ -19,6 +19,7 @@ serde1 = ["base64", "serde", "serde_derive", "serde_json"]
[dependencies]
base64 = { version = "0.10.0", optional = true }
bstr = "0.1.2"
grep-matcher = { version = "0.1.1", path = "../grep-matcher" }
grep-searcher = { version = "0.1.1", path = "../grep-searcher" }
termcolor = "1.0.4"

1
grep-printer/src/lib.rs
View File

@@ -70,6 +70,7 @@ fn example() -> Result<(), Box<Error>> {
#[cfg(feature = "serde1")]
extern crate base64;
extern crate bstr;
extern crate grep_matcher;
#[cfg(test)]
extern crate grep_regex;

601
grep-printer/src/standard.rs
View File

@@ -5,6 +5,7 @@ use std::path::Path;
use std::sync::Arc;
use std::time::Instant;
use bstr::BStr;
use grep_matcher::{Match, Matcher};
use grep_searcher::{
LineStep, Searcher,
@@ -16,10 +17,7 @@ use termcolor::{ColorSpec, NoColor, WriteColor};
use color::ColorSpecs;
use counter::CounterWriter;
use stats::Stats;
use util::{
PrinterPath, Replacer, Sunk,
trim_ascii_prefix, trim_ascii_prefix_range,
};
use util::{PrinterPath, Replacer, Sunk, trim_ascii_prefix};
/// The configuration for the standard printer.
///
@@ -36,6 +34,7 @@ struct Config {
per_match: bool,
replacement: Arc<Option<Vec<u8>>>,
max_columns: Option<u64>,
max_columns_preview: bool,
max_matches: Option<u64>,
column: bool,
byte_offset: bool,
@@ -59,6 +58,7 @@ impl Default for Config {
per_match: false,
replacement: Arc::new(None),
max_columns: None,
max_columns_preview: false,
max_matches: None,
column: false,
byte_offset: false,
@@ -263,6 +263,21 @@ impl StandardBuilder {
self
}
/// When enabled, if a line is found to be over the configured maximum
/// column limit (measured in terms of bytes), then a preview of the long
/// line will be printed instead.
///
/// The preview will correspond to the first `N` *grapheme clusters* of
/// the line, where `N` is the limit configured by `max_columns`.
///
/// If no limit is set, then enabling this has no effect.
///
/// This is disabled by default.
pub fn max_columns_preview(&mut self, yes: bool) -> &mut StandardBuilder {
self.config.max_columns_preview = yes;
self
}
/// Set the maximum amount of matching lines that are printed.
///
/// If multi line search is enabled and a match spans multiple lines, then
@@ -743,6 +758,11 @@ impl<'p, 's, M: Matcher, W: WriteColor> Sink for StandardSink<'p, 's, M, W> {
stats.add_matches(self.standard.matches.len() as u64);
stats.add_matched_lines(mat.lines().count() as u64);
}
if searcher.binary_detection().convert_byte().is_some() {
if self.binary_byte_offset.is_some() {
return Ok(false);
}
}
StandardImpl::from_match(searcher, self, mat).sink()?;
Ok(!self.should_quit())
@@ -764,6 +784,12 @@ impl<'p, 's, M: Matcher, W: WriteColor> Sink for StandardSink<'p, 's, M, W> {
self.record_matches(ctx.bytes())?;
self.replace(ctx.bytes())?;
}
if searcher.binary_detection().convert_byte().is_some() {
if self.binary_byte_offset.is_some() {
return Ok(false);
}
}
StandardImpl::from_context(searcher, self, ctx).sink()?;
Ok(!self.should_quit())
}
@@ -776,6 +802,15 @@ impl<'p, 's, M: Matcher, W: WriteColor> Sink for StandardSink<'p, 's, M, W> {
Ok(true)
}
fn binary_data(
&mut self,
_searcher: &Searcher,
binary_byte_offset: u64,
) -> Result<bool, io::Error> {
self.binary_byte_offset = Some(binary_byte_offset);
Ok(true)
}
fn begin(
&mut self,
_searcher: &Searcher,
@@ -793,10 +828,12 @@ impl<'p, 's, M: Matcher, W: WriteColor> Sink for StandardSink<'p, 's, M, W> {
fn finish(
&mut self,
_searcher: &Searcher,
searcher: &Searcher,
finish: &SinkFinish,
) -> Result<(), io::Error> {
self.binary_byte_offset = finish.binary_byte_offset();
if let Some(offset) = self.binary_byte_offset {
StandardImpl::new(searcher, self).write_binary_message(offset)?;
}
if let Some(stats) = self.stats.as_mut() {
stats.add_elapsed(self.start_time.elapsed());
stats.add_searches(1);
@@ -1000,43 +1037,11 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
)?;
count += 1;
if self.exceeds_max_columns(&bytes[line]) {
self.write_exceeded_line()?;
continue;
self.write_exceeded_line(bytes, line, matches, &mut midx)?;
} else {
self.write_colored_matches(bytes, line, matches, &mut midx)?;
self.write_line_term()?;
}
if self.has_line_terminator(&bytes[line]) {
line = line.with_end(line.end() - 1);
}
if self.config().trim_ascii {
line = self.trim_ascii_prefix_range(bytes, line);
}
while !line.is_empty() {
if matches[midx].end() <= line.start() {
if midx + 1 < matches.len() {
midx += 1;
continue;
} else {
self.end_color_match()?;
self.write(&bytes[line])?;
break;
}
}
let m = matches[midx];
if line.start() < m.start() {
let upto = cmp::min(line.end(), m.start());
self.end_color_match()?;
self.write(&bytes[line.with_end(upto)])?;
line = line.with_start(upto);
} else {
let upto = cmp::min(line.end(), m.end());
self.start_color_match()?;
self.write(&bytes[line.with_end(upto)])?;
line = line.with_start(upto);
}
}
self.end_color_match()?;
self.write_line_term()?;
}
Ok(())
}
@@ -1051,12 +1056,8 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
let mut stepper = LineStep::new(line_term, 0, bytes.len());
while let Some((start, end)) = stepper.next(bytes) {
let mut line = Match::new(start, end);
if self.has_line_terminator(&bytes[line]) {
line = line.with_end(line.end() - 1);
}
if self.config().trim_ascii {
line = self.trim_ascii_prefix_range(bytes, line);
}
self.trim_line_terminator(bytes, &mut line);
self.trim_ascii_prefix(bytes, &mut line);
while !line.is_empty() {
if matches[midx].end() <= line.start() {
if midx + 1 < matches.len() {
@@ -1079,14 +1080,19 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
Some(m.start() as u64 + 1),
)?;
let buf = &bytes[line.with_end(upto)];
let this_line = line.with_end(upto);
line = line.with_start(upto);
if self.exceeds_max_columns(&buf) {
self.write_exceeded_line()?;
continue;
if self.exceeds_max_columns(&bytes[this_line]) {
self.write_exceeded_line(
bytes,
this_line,
matches,
&mut midx,
)?;
} else {
self.write_spec(spec, &bytes[this_line])?;
self.write_line_term()?;
}
self.write_spec(spec, buf)?;
self.write_line_term()?;
}
}
count += 1;
@@ -1117,15 +1123,11 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
)?;
count += 1;
if self.exceeds_max_columns(&bytes[line]) {
self.write_exceeded_line()?;
self.write_exceeded_line(bytes, line, &[m], &mut 0)?;
continue;
}
if self.has_line_terminator(&bytes[line]) {
line = line.with_end(line.end() - 1);
}
if self.config().trim_ascii {
line = self.trim_ascii_prefix_range(bytes, line);
}
self.trim_line_terminator(bytes, &mut line);
self.trim_ascii_prefix(bytes, &mut line);
while !line.is_empty() {
if m.end() <= line.start() {
@@ -1182,7 +1184,10 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
line: &[u8],
) -> io::Result<()> {
if self.exceeds_max_columns(line) {
self.write_exceeded_line()?;
let range = Match::new(0, line.len());
self.write_exceeded_line(
line, range, self.sunk.matches(), &mut 0,
)?;
} else {
self.write_trim(line)?;
if !self.has_line_terminator(line) {
@@ -1195,50 +1200,114 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
fn write_colored_line(
&self,
matches: &[Match],
line: &[u8],
bytes: &[u8],
) -> io::Result<()> {
// If we know we aren't going to emit color, then we can go faster.
let spec = self.config().colors.matched();
if !self.wtr().borrow().supports_color() || spec.is_none() {
return self.write_line(line);
}
if self.exceeds_max_columns(line) {
return self.write_exceeded_line();
return self.write_line(bytes);
}
let mut last_written =
if !self.config().trim_ascii {
0
} else {
self.trim_ascii_prefix_range(
line,
Match::new(0, line.len()),
).start()
};
for mut m in matches.iter().map(|&m| m) {
if last_written < m.start() {
let line = Match::new(0, bytes.len());
if self.exceeds_max_columns(bytes) {
self.write_exceeded_line(bytes, line, matches, &mut 0)
} else {
self.write_colored_matches(bytes, line, matches, &mut 0)?;
self.write_line_term()?;
Ok(())
}
}
/// Write the `line` portion of `bytes`, with appropriate coloring for
/// each `match`, starting at `match_index`.
///
/// This accounts for trimming any whitespace prefix and will *never* print
/// a line terminator. If a match exceeds the range specified by `line`,
/// then only the part of the match within `line` (if any) is printed.
fn write_colored_matches(
&self,
bytes: &[u8],
mut line: Match,
matches: &[Match],
match_index: &mut usize,
) -> io::Result<()> {
self.trim_line_terminator(bytes, &mut line);
self.trim_ascii_prefix(bytes, &mut line);
if matches.is_empty() {
self.write(&bytes[line])?;
return Ok(());
}
while !line.is_empty() {
if matches[*match_index].end() <= line.start() {
if *match_index + 1 < matches.len() {
*match_index += 1;
continue;
} else {
self.end_color_match()?;
self.write(&bytes[line])?;
break;
}
}
let m = matches[*match_index];
if line.start() < m.start() {
let upto = cmp::min(line.end(), m.start());
self.end_color_match()?;
self.write(&line[last_written..m.start()])?;
} else if last_written < m.end() {
m = m.with_start(last_written);
self.write(&bytes[line.with_end(upto)])?;
line = line.with_start(upto);
} else {
continue;
}
if !m.is_empty() {
let upto = cmp::min(line.end(), m.end());
self.start_color_match()?;
self.write(&line[m])?;
self.write(&bytes[line.with_end(upto)])?;
line = line.with_start(upto);
}
last_written = m.end();
}
self.end_color_match()?;
self.write(&line[last_written..])?;
if !self.has_line_terminator(line) {
self.write_line_term()?;
}
Ok(())
}
fn write_exceeded_line(&self) -> io::Result<()> {
fn write_exceeded_line(
&self,
bytes: &[u8],
mut line: Match,
matches: &[Match],
match_index: &mut usize,
) -> io::Result<()> {
if self.config().max_columns_preview {
let original = line;
let end = BStr::new(&bytes[line])
.grapheme_indices()
.map(|(_, end, _)| end)
.take(self.config().max_columns.unwrap_or(0) as usize)
.last()
.unwrap_or(0) + line.start();
line = line.with_end(end);
self.write_colored_matches(bytes, line, matches, match_index)?;
if matches.is_empty() {
self.write(b" [... omitted end of long line]")?;
} else {
let remaining = matches
.iter()
.filter(|m| {
m.start() >= line.end() && m.start() < original.end()
})
.count();
let tense =
if remaining == 1 {
"match"
} else {
"matches"
};
write!(
self.wtr().borrow_mut(),
" [... {} more {}]",
remaining, tense,
)?;
}
self.write_line_term()?;
return Ok(());
}
if self.sunk.original_matches().is_empty() {
if self.is_context() {
self.write(b"[Omitted long context line]")?;
@@ -1314,6 +1383,38 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
Ok(())
}
fn write_binary_message(&self, offset: u64) -> io::Result<()> {
if self.sink.match_count == 0 {
return Ok(());
}
let bin = self.searcher.binary_detection();
if let Some(byte) = bin.quit_byte() {
self.write(b"WARNING: stopped searching binary file ")?;
if let Some(path) = self.path() {
self.write_spec(self.config().colors.path(), path.as_bytes())?;
self.write(b" ")?;
}
let remainder = format!(
"after match (found {:?} byte around offset {})\n",
BStr::new(&[byte]), offset,
);
self.write(remainder.as_bytes())?;
} else if let Some(byte) = bin.convert_byte() {
self.write(b"Binary file ")?;
if let Some(path) = self.path() {
self.write_spec(self.config().colors.path(), path.as_bytes())?;
self.write(b" ")?;
}
let remainder = format!(
"matches (found {:?} byte around offset {})\n",
BStr::new(&[byte]), offset,
);
self.write(remainder.as_bytes())?;
}
Ok(())
}
fn write_context_separator(&self) -> io::Result<()> {
if let Some(ref sep) = *self.config().separator_context {
self.write(sep)?;
@@ -1389,13 +1490,26 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
if !self.config().trim_ascii {
return self.write(buf);
}
self.write(self.trim_ascii_prefix(buf))
let mut range = Match::new(0, buf.len());
self.trim_ascii_prefix(buf, &mut range);
self.write(&buf[range])
}
fn write(&self, buf: &[u8]) -> io::Result<()> {
self.wtr().borrow_mut().write_all(buf)
}
fn trim_line_terminator(&self, buf: &[u8], line: &mut Match) {
let lineterm = self.searcher.line_terminator();
if lineterm.is_suffix(&buf[*line]) {
let mut end = line.end() - 1;
if lineterm.is_crlf() && buf[end - 1] == b'\r' {
end -= 1;
}
*line = line.with_end(end);
}
}
fn has_line_terminator(&self, buf: &[u8]) -> bool {
self.searcher.line_terminator().is_suffix(buf)
}
@@ -1451,14 +1565,12 @@ impl<'a, M: Matcher, W: WriteColor> StandardImpl<'a, M, W> {
///
/// This stops trimming a prefix as soon as it sees non-whitespace or a
/// line terminator.
fn trim_ascii_prefix_range(&self, slice: &[u8], range: Match) -> Match {
trim_ascii_prefix_range(self.searcher.line_terminator(), slice, range)
}
/// Trim prefix ASCII spaces from the given slice and return the
/// corresponding sub-slice.
fn trim_ascii_prefix<'s>(&self, slice: &'s [u8]) -> &'s [u8] {
trim_ascii_prefix(self.searcher.line_terminator(), slice)
fn trim_ascii_prefix(&self, slice: &[u8], range: &mut Match) {
if !self.config().trim_ascii {
return;
}
let lineterm = self.searcher.line_terminator();
*range = trim_ascii_prefix(lineterm, slice, *range)
}
}
@@ -2225,6 +2337,31 @@ but Doctor Watson has to have it taken out for him and dusted,
assert_eq_printed!(expected, got);
}
#[test]
fn max_columns_preview() {
let matcher = RegexMatcher::new("exhibited|dusted").unwrap();
let mut printer = StandardBuilder::new()
.max_columns(Some(46))
.max_columns_preview(true)
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.line_number(false)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
but Doctor Watson has to have it taken out for [... omitted end of long line]
and exhibited clearly, with a label attached.
";
assert_eq_printed!(expected, got);
}
#[test]
fn max_columns_with_count() {
let matcher = RegexMatcher::new("cigar|ash|dusted").unwrap();
@@ -2250,6 +2387,86 @@ but Doctor Watson has to have it taken out for him and dusted,
assert_eq_printed!(expected, got);
}
#[test]
fn max_columns_with_count_preview_no_match() {
let matcher = RegexMatcher::new("exhibited|has to have it").unwrap();
let mut printer = StandardBuilder::new()
.stats(true)
.max_columns(Some(46))
.max_columns_preview(true)
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.line_number(false)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
but Doctor Watson has to have it taken out for [... 0 more matches]
and exhibited clearly, with a label attached.
";
assert_eq_printed!(expected, got);
}
#[test]
fn max_columns_with_count_preview_one_match() {
let matcher = RegexMatcher::new("exhibited|dusted").unwrap();
let mut printer = StandardBuilder::new()
.stats(true)
.max_columns(Some(46))
.max_columns_preview(true)
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.line_number(false)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
but Doctor Watson has to have it taken out for [... 1 more match]
and exhibited clearly, with a label attached.
";
assert_eq_printed!(expected, got);
}
#[test]
fn max_columns_with_count_preview_two_matches() {
let matcher = RegexMatcher::new(
"exhibited|dusted|has to have it",
).unwrap();
let mut printer = StandardBuilder::new()
.stats(true)
.max_columns(Some(46))
.max_columns_preview(true)
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.line_number(false)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
but Doctor Watson has to have it taken out for [... 1 more match]
and exhibited clearly, with a label attached.
";
assert_eq_printed!(expected, got);
}
#[test]
fn max_columns_multi_line() {
let matcher = RegexMatcher::new("(?s)ash.+dusted").unwrap();
@@ -2275,6 +2492,36 @@ but Doctor Watson has to have it taken out for him and dusted,
assert_eq_printed!(expected, got);
}
#[test]
fn max_columns_multi_line_preview() {
let matcher = RegexMatcher::new(
"(?s)clew|cigar ash.+have it|exhibited",
).unwrap();
let mut printer = StandardBuilder::new()
.stats(true)
.max_columns(Some(46))
.max_columns_preview(true)
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.line_number(false)
.multi_line(true)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
can extract a clew from a wisp of straw or a f [... 1 more match]
but Doctor Watson has to have it taken out for [... 0 more matches]
and exhibited clearly, with a label attached.
";
assert_eq_printed!(expected, got);
}
#[test]
fn max_matches() {
let matcher = RegexMatcher::new("Sherlock").unwrap();
@@ -2564,8 +2811,40 @@ Holmeses, success in the province of detective work must always
assert_eq_printed!(expected, got);
}
#[test]
fn only_matching_max_columns_preview() {
let matcher = RegexMatcher::new("Doctor Watsons|Sherlock").unwrap();
let mut printer = StandardBuilder::new()
.only_matching(true)
.max_columns(Some(10))
.max_columns_preview(true)
.column(true)
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.line_number(true)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
1:9:Doctor Wat [... 0 more matches]
1:57:Sherlock
3:49:Sherlock
";
assert_eq_printed!(expected, got);
}
#[test]
fn only_matching_max_columns_multi_line1() {
// The `(?s:.{0})` trick fools the matcher into thinking that it
// can match across multiple lines without actually doing so. This is
// so we can test multi-line handling in the case of a match on only
// one line.
let matcher = RegexMatcher::new(
r"(?s:.{0})(Doctor Watsons|Sherlock)"
).unwrap();
@@ -2594,6 +2873,41 @@ Holmeses, success in the province of detective work must always
assert_eq_printed!(expected, got);
}
#[test]
fn only_matching_max_columns_preview_multi_line1() {
// The `(?s:.{0})` trick fools the matcher into thinking that it
// can match across multiple lines without actually doing so. This is
// so we can test multi-line handling in the case of a match on only
// one line.
let matcher = RegexMatcher::new(
r"(?s:.{0})(Doctor Watsons|Sherlock)"
).unwrap();
let mut printer = StandardBuilder::new()
.only_matching(true)
.max_columns(Some(10))
.max_columns_preview(true)
.column(true)
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.multi_line(true)
.line_number(true)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
1:9:Doctor Wat [... 0 more matches]
1:57:Sherlock
3:49:Sherlock
";
assert_eq_printed!(expected, got);
}
#[test]
fn only_matching_max_columns_multi_line2() {
let matcher = RegexMatcher::new(
@@ -2625,6 +2939,38 @@ Holmeses, success in the province of detective work must always
assert_eq_printed!(expected, got);
}
#[test]
fn only_matching_max_columns_preview_multi_line2() {
let matcher = RegexMatcher::new(
r"(?s)Watson.+?(Holmeses|clearly)"
).unwrap();
let mut printer = StandardBuilder::new()
.only_matching(true)
.max_columns(Some(50))
.max_columns_preview(true)
.column(true)
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.multi_line(true)
.line_number(true)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
1:16:Watsons of this world, as opposed to the Sherlock
2:16:Holmeses
5:12:Watson has to have it taken out for him and dusted [... 0 more matches]
6:12:and exhibited clearly
";
assert_eq_printed!(expected, got);
}
#[test]
fn per_match() {
let matcher = RegexMatcher::new("Doctor Watsons|Sherlock").unwrap();
@@ -2820,6 +3166,61 @@ Holmeses, success in the province of detective work must always
assert_eq_printed!(expected, got);
}
#[test]
fn replacement_max_columns_preview1() {
let matcher = RegexMatcher::new(r"Sherlock|Doctor (\w+)").unwrap();
let mut printer = StandardBuilder::new()
.max_columns(Some(67))
.max_columns_preview(true)
.replacement(Some(b"doctah $1 MD".to_vec()))
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.line_number(true)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
1:For the doctah Watsons MD of this world, as opposed to the doctah [... 0 more matches]
3:be, to a very large extent, the result of luck. doctah MD Holmes
5:but doctah Watson MD has to have it taken out for him and dusted,
";
assert_eq_printed!(expected, got);
}
#[test]
fn replacement_max_columns_preview2() {
let matcher = RegexMatcher::new(
"exhibited|dusted|has to have it",
).unwrap();
let mut printer = StandardBuilder::new()
.max_columns(Some(43))
.max_columns_preview(true)
.replacement(Some(b"xxx".to_vec()))
.build(NoColor::new(vec![]));
SearcherBuilder::new()
.line_number(false)
.build()
.search_reader(
&matcher,
SHERLOCK.as_bytes(),
printer.sink(&matcher),
)
.unwrap();
let got = printer_contents(&mut printer);
let expected = "\
but Doctor Watson xxx taken out for him and [... 1 more match]
and xxx clearly, with a label attached.
";
assert_eq_printed!(expected, got);
}
#[test]
fn replacement_only_matching() {
let matcher = RegexMatcher::new(r"Sherlock|Doctor (\w+)").unwrap();

28
grep-printer/src/summary.rs
View File

@@ -636,6 +636,34 @@ impl<'p, 's, M: Matcher, W: WriteColor> Sink for SummarySink<'p, 's, M, W> {
stats.add_bytes_searched(finish.byte_count());
stats.add_bytes_printed(self.summary.wtr.borrow().count());
}
// If our binary detection method says to quit after seeing binary
// data, then we shouldn't print any results at all, even if we've
// found a match before detecting binary data. The intent here is to
// keep BinaryDetection::quit as a form of filter. Otherwise, we can
// present a matching file with a smaller number of matches than
// there might be, which can be quite misleading.
//
// If our binary detection method is to convert binary data, then we
// don't quit and therefore search the entire contents of the file.
//
// There is an unfortunate inconsistency here. Namely, when using
// Quiet or PathWithMatch, then the printer can quit after the first
// match seen, which could be long before seeing binary data. This
// means that using PathWithMatch can print a path where as using
// Count might not print it at all because of binary data.
//
// It's not possible to fix this without also potentially significantly
// impacting the performance of Quiet or PathWithMatch, so we accept
// the bug.
if self.binary_byte_offset.is_some()
&& searcher.binary_detection().quit_byte().is_some()
{
// Squash the match count. The statistics reported will still
// contain the match count, but the "official" match count should
// be zero.
self.match_count = 0;
return Ok(());
}
let show_count =
!self.summary.config.exclude_zero

36
grep-printer/src/util.rs
View File

@@ -4,6 +4,7 @@ use std::io;
use std::path::Path;
use std::time;
use bstr::{BStr, BString};
use grep_matcher::{Captures, LineTerminator, Match, Matcher};
use grep_searcher::{
LineIter,
@@ -262,26 +263,12 @@ impl<'a> Sunk<'a> {
/// portability with a small cost: on Windows, paths that are not valid UTF-16
/// will not roundtrip correctly.
#[derive(Clone, Debug)]
pub struct PrinterPath<'a>(Cow<'a, [u8]>);
pub struct PrinterPath<'a>(Cow<'a, BStr>);
impl<'a> PrinterPath<'a> {
/// Create a new path suitable for printing.
pub fn new(path: &'a Path) -> PrinterPath<'a> {
PrinterPath::new_impl(path)
}
#[cfg(unix)]
fn new_impl(path: &'a Path) -> PrinterPath<'a> {
use std::os::unix::ffi::OsStrExt;
PrinterPath(Cow::Borrowed(path.as_os_str().as_bytes()))
}
#[cfg(not(unix))]
fn new_impl(path: &'a Path) -> PrinterPath<'a> {
PrinterPath(match path.to_string_lossy() {
Cow::Owned(path) => Cow::Owned(path.into_bytes()),
Cow::Borrowed(path) => Cow::Borrowed(path.as_bytes()),
})
PrinterPath(BString::from_path_lossy(path))
}
/// Create a new printer path from the given path which can be efficiently
@@ -302,7 +289,7 @@ impl<'a> PrinterPath<'a> {
/// path separators that are both replaced by `new_sep`. In all other
/// environments, only `/` is treated as a path separator.
fn replace_separator(&mut self, new_sep: u8) {
let transformed_path: Vec<_> = self.as_bytes().iter().map(|&b| {
let transformed_path: BString = self.0.bytes().map(|b| {
if b == b'/' || (cfg!(windows) && b == b'\\') {
new_sep
} else {
@@ -314,7 +301,7 @@ impl<'a> PrinterPath<'a> {
/// Return the raw bytes for this path.
pub fn as_bytes(&self) -> &[u8] {
&*self.0
self.0.as_bytes()
}
}
@@ -359,7 +346,7 @@ impl Serialize for NiceDuration {
///
/// This stops trimming a prefix as soon as it sees non-whitespace or a line
/// terminator.
pub fn trim_ascii_prefix_range(
pub fn trim_ascii_prefix(
line_term: LineTerminator,
slice: &[u8],
range: Match,
@@ -379,14 +366,3 @@ pub fn trim_ascii_prefix_range(
.count();
range.with_start(range.start() + count)
}
/// Trim prefix ASCII spaces from the given slice and return the corresponding
/// sub-slice.
pub fn trim_ascii_prefix(line_term: LineTerminator, slice: &[u8]) -> &[u8] {
let range = trim_ascii_prefix_range(
line_term,
slice,
Match::new(0, slice.len()),
);
&slice[range]
}

3
grep-regex/Cargo.toml
View File

@@ -13,8 +13,9 @@ keywords = ["regex", "grep", "search", "pattern", "line"]
license = "Unlicense/MIT"
[dependencies]
log = "0.4.5"
aho-corasick = "0.7.3"
grep-matcher = { version = "0.1.1", path = "../grep-matcher" }
log = "0.4.5"
regex = "1.1"
regex-syntax = "0.6.5"
thread_local = "0.3.6"

51
grep-regex/src/config.rs
View File

@@ -1,12 +1,13 @@
use grep_matcher::{ByteSet, LineTerminator};
use regex::bytes::{Regex, RegexBuilder};
use regex_syntax::ast::{self, Ast};
use regex_syntax::hir::Hir;
use regex_syntax::hir::{self, Hir};
use ast::AstAnalysis;
use crlf::crlfify;
use error::Error;
use literal::LiteralSets;
use multi::alternation_literals;
use non_matching::non_matching_bytes;
use strip::strip_from_match;
@@ -67,19 +68,17 @@ impl Config {
/// If there was a problem parsing the given expression then an error
/// is returned.
pub fn hir(&self, pattern: &str) -> Result<ConfiguredHIR, Error> {
let analysis = self.analysis(pattern)?;
let expr = ::regex_syntax::ParserBuilder::new()
.nest_limit(self.nest_limit)
.octal(self.octal)
let ast = self.ast(pattern)?;
let analysis = self.analysis(&ast)?;
let expr = hir::translate::TranslatorBuilder::new()
.allow_invalid_utf8(true)
.ignore_whitespace(self.ignore_whitespace)
.case_insensitive(self.is_case_insensitive(&analysis)?)
.case_insensitive(self.is_case_insensitive(&analysis))
.multi_line(self.multi_line)
.dot_matches_new_line(self.dot_matches_new_line)
.swap_greed(self.swap_greed)
.unicode(self.unicode)
.build()
.parse(pattern)
.translate(pattern, &ast)
.map_err(Error::regex)?;
let expr = match self.line_terminator {
None => expr,
@@ -99,21 +98,34 @@ impl Config {
fn is_case_insensitive(
&self,
analysis: &AstAnalysis,
) -> Result<bool, Error> {
) -> bool {
if self.case_insensitive {
return Ok(true);
return true;
}
if !self.case_smart {
return Ok(false);
return false;
}
Ok(analysis.any_literal() && !analysis.any_uppercase())
analysis.any_literal() && !analysis.any_uppercase()
}
/// Returns true if and only if this config is simple enough such that
/// if the pattern is a simple alternation of literals, then it can be
/// constructed via a plain Aho-Corasick automaton.
///
/// Note that it is OK to return true even when settings like `multi_line`
/// are enabled, since if multi-line can impact the match semantics of a
/// regex, then it is by definition not a simple alternation of literals.
pub fn can_plain_aho_corasick(&self) -> bool {
!self.word
&& !self.case_insensitive
&& !self.case_smart
}
/// Perform analysis on the AST of this pattern.
///
/// This returns an error if the given pattern failed to parse.
fn analysis(&self, pattern: &str) -> Result<AstAnalysis, Error> {
Ok(AstAnalysis::from_ast(&self.ast(pattern)?))
fn analysis(&self, ast: &Ast) -> Result<AstAnalysis, Error> {
Ok(AstAnalysis::from_ast(ast))
}
/// Parse the given pattern into its abstract syntax.
@@ -173,6 +185,15 @@ impl ConfiguredHIR {
self.pattern_to_regex(&self.expr.to_string())
}
/// If this HIR corresponds to an alternation of literals with no
/// capturing groups, then this returns those literals.
pub fn alternation_literals(&self) -> Option<Vec<Vec<u8>>> {
if !self.config.can_plain_aho_corasick() {
return None;
}
alternation_literals(&self.expr)
}
/// Applies the given function to the concrete syntax of this HIR and then
/// generates a new HIR based on the result of the function in a way that
/// preserves the configuration.
@@ -207,7 +228,7 @@ impl ConfiguredHIR {
if self.config.line_terminator.is_none() {
return Ok(None);
}
match LiteralSets::new(&self.expr).one_regex() {
match LiteralSets::new(&self.expr).one_regex(self.config.word) {
None => Ok(None),
Some(pattern) => self.pattern_to_regex(&pattern).map(Some),
}

9
grep-regex/src/crlf.rs
View File

@@ -34,6 +34,11 @@ impl CRLFMatcher {
}
Ok(CRLFMatcher { regex, names })
}
/// Return the underlying regex used by this matcher.
pub fn regex(&self) -> &Regex {
&self.regex
}
}
impl Matcher for CRLFMatcher {
@@ -71,7 +76,9 @@ impl Matcher for CRLFMatcher {
caps: &mut RegexCaptures,
) -> Result<bool, NoError> {
caps.strip_crlf(false);
let r = self.regex.captures_read_at(caps.locations(), haystack, at);
let r = self.regex.captures_read_at(
caps.locations_mut(), haystack, at,
);
if !r.is_some() {
return Ok(false);
}

2
grep-regex/src/lib.rs
View File

@@ -4,6 +4,7 @@ An implementation of `grep-matcher`'s `Matcher` trait for Rust's regex engine.
#![deny(missing_docs)]
extern crate aho_corasick;
extern crate grep_matcher;
#[macro_use]
extern crate log;
@@ -21,6 +22,7 @@ mod crlf;
mod error;
mod literal;
mod matcher;
mod multi;
mod non_matching;
mod strip;
mod util;

19
grep-regex/src/literal.rs
View File

@@ -47,18 +47,23 @@ impl LiteralSets {
/// generated these literal sets. The idea here is that the pattern
/// returned by this method is much cheaper to search for. i.e., It is
/// usually a single literal or an alternation of literals.
pub fn one_regex(&self) -> Option<String> {
pub fn one_regex(&self, word: bool) -> Option<String> {
// TODO: The logic in this function is basically inscrutable. It grew
// organically in the old grep 0.1 crate. Ideally, it would be
// re-worked. In fact, the entire inner literal extraction should be
// re-worked. Actually, most of regex-syntax's literal extraction
// should also be re-worked. Alas... only so much time in the day.
if self.prefixes.all_complete() && !self.prefixes.is_empty() {
debug!("literal prefixes detected: {:?}", self.prefixes);
// When this is true, the regex engine will do a literal scan,
// so we don't need to return anything.
return None;
if !word {
if self.prefixes.all_complete() && !self.prefixes.is_empty() {
debug!("literal prefixes detected: {:?}", self.prefixes);
// When this is true, the regex engine will do a literal scan,
// so we don't need to return anything. But we only do this
// if we aren't doing a word regex, since a word regex adds
// a `(?:\W|^)` to the beginning of the regex, thereby
// defeating the regex engine's literal detection.
return None;
}
}
// Out of inner required literals, prefixes and suffixes, which one
@@ -285,7 +290,7 @@ mod tests {
}
fn one_regex(pattern: &str) -> Option<String> {
sets(pattern).one_regex()
sets(pattern).one_regex(false)
}
// Put a pattern into the same format as the one returned by `one_regex`.

218
grep-regex/src/matcher.rs
View File

@@ -8,6 +8,7 @@ use regex::bytes::{CaptureLocations, Regex};
use config::{Config, ConfiguredHIR};
use crlf::CRLFMatcher;
use error::Error;
use multi::MultiLiteralMatcher;
use word::WordMatcher;
/// A builder for constructing a `Matcher` using regular expressions.
@@ -50,14 +51,40 @@ impl RegexMatcherBuilder {
if let Some(ref re) = fast_line_regex {
trace!("extracted fast line regex: {:?}", re);
}
let matcher = RegexMatcherImpl::new(&chir)?;
trace!("final regex: {:?}", matcher.regex());
Ok(RegexMatcher {
config: self.config.clone(),
matcher: RegexMatcherImpl::new(&chir)?,
matcher: matcher,
fast_line_regex: fast_line_regex,
non_matching_bytes: non_matching_bytes,
})
}
/// Build a new matcher from a plain alternation of literals.
///
/// Depending on the configuration set by the builder, this may be able to
/// build a matcher substantially faster than by joining the patterns with
/// a `|` and calling `build`.
pub fn build_literals<B: AsRef<str>>(
&self,
literals: &[B],
) -> Result<RegexMatcher, Error> {
let slices: Vec<_> = literals.iter().map(|s| s.as_ref()).collect();
if !self.config.can_plain_aho_corasick() || literals.len() < 40 {
return self.build(&slices.join("|"));
}
let matcher = MultiLiteralMatcher::new(&slices)?;
let imp = RegexMatcherImpl::MultiLiteral(matcher);
Ok(RegexMatcher {
config: self.config.clone(),
matcher: imp,
fast_line_regex: None,
non_matching_bytes: ByteSet::empty(),
})
}
/// Set the value for the case insensitive (`i`) flag.
///
/// When enabled, letters in the pattern will match both upper case and
@@ -345,6 +372,8 @@ impl RegexMatcher {
enum RegexMatcherImpl {
/// The standard matcher used for all regular expressions.
Standard(StandardMatcher),
/// A matcher for an alternation of plain literals.
MultiLiteral(MultiLiteralMatcher),
/// A matcher that strips `\r` from the end of matches.
///
/// This is only used when the CRLF hack is enabled and the regex is line
@@ -367,9 +396,25 @@ impl RegexMatcherImpl {
} else if expr.needs_crlf_stripped() {
Ok(RegexMatcherImpl::CRLF(CRLFMatcher::new(expr)?))
} else {
if let Some(lits) = expr.alternation_literals() {
if lits.len() >= 40 {
let matcher = MultiLiteralMatcher::new(&lits)?;
return Ok(RegexMatcherImpl::MultiLiteral(matcher));
}
}
Ok(RegexMatcherImpl::Standard(StandardMatcher::new(expr)?))
}
}
/// Return the underlying regex object used.
fn regex(&self) -> String {
match *self {
RegexMatcherImpl::Word(ref x) => x.regex().to_string(),
RegexMatcherImpl::CRLF(ref x) => x.regex().to_string(),
RegexMatcherImpl::MultiLiteral(_) => "<N/A>".to_string(),
RegexMatcherImpl::Standard(ref x) => x.regex.to_string(),
}
}
}
// This implementation just dispatches on the internal matcher impl except
@@ -387,6 +432,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.find_at(haystack, at),
MultiLiteral(ref m) => m.find_at(haystack, at),
CRLF(ref m) => m.find_at(haystack, at),
Word(ref m) => m.find_at(haystack, at),
}
@@ -396,6 +442,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.new_captures(),
MultiLiteral(ref m) => m.new_captures(),
CRLF(ref m) => m.new_captures(),
Word(ref m) => m.new_captures(),
}
@@ -405,6 +452,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.capture_count(),
MultiLiteral(ref m) => m.capture_count(),
CRLF(ref m) => m.capture_count(),
Word(ref m) => m.capture_count(),
}
@@ -414,6 +462,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.capture_index(name),
MultiLiteral(ref m) => m.capture_index(name),
CRLF(ref m) => m.capture_index(name),
Word(ref m) => m.capture_index(name),
}
@@ -423,6 +472,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.find(haystack),
MultiLiteral(ref m) => m.find(haystack),
CRLF(ref m) => m.find(haystack),
Word(ref m) => m.find(haystack),
}
@@ -438,6 +488,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.find_iter(haystack, matched),
MultiLiteral(ref m) => m.find_iter(haystack, matched),
CRLF(ref m) => m.find_iter(haystack, matched),
Word(ref m) => m.find_iter(haystack, matched),
}
@@ -453,6 +504,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.try_find_iter(haystack, matched),
MultiLiteral(ref m) => m.try_find_iter(haystack, matched),
CRLF(ref m) => m.try_find_iter(haystack, matched),
Word(ref m) => m.try_find_iter(haystack, matched),
}
@@ -466,6 +518,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.captures(haystack, caps),
MultiLiteral(ref m) => m.captures(haystack, caps),
CRLF(ref m) => m.captures(haystack, caps),
Word(ref m) => m.captures(haystack, caps),
}
@@ -482,6 +535,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.captures_iter(haystack, caps, matched),
MultiLiteral(ref m) => m.captures_iter(haystack, caps, matched),
CRLF(ref m) => m.captures_iter(haystack, caps, matched),
Word(ref m) => m.captures_iter(haystack, caps, matched),
}
@@ -498,6 +552,9 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.try_captures_iter(haystack, caps, matched),
MultiLiteral(ref m) => {
m.try_captures_iter(haystack, caps, matched)
}
CRLF(ref m) => m.try_captures_iter(haystack, caps, matched),
Word(ref m) => m.try_captures_iter(haystack, caps, matched),
}
@@ -512,6 +569,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.captures_at(haystack, at, caps),
MultiLiteral(ref m) => m.captures_at(haystack, at, caps),
CRLF(ref m) => m.captures_at(haystack, at, caps),
Word(ref m) => m.captures_at(haystack, at, caps),
}
@@ -528,6 +586,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.replace(haystack, dst, append),
MultiLiteral(ref m) => m.replace(haystack, dst, append),
CRLF(ref m) => m.replace(haystack, dst, append),
Word(ref m) => m.replace(haystack, dst, append),
}
@@ -547,6 +606,9 @@ impl Matcher for RegexMatcher {
Standard(ref m) => {
m.replace_with_captures(haystack, caps, dst, append)
}
MultiLiteral(ref m) => {
m.replace_with_captures(haystack, caps, dst, append)
}
CRLF(ref m) => {
m.replace_with_captures(haystack, caps, dst, append)
}
@@ -560,6 +622,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.is_match(haystack),
MultiLiteral(ref m) => m.is_match(haystack),
CRLF(ref m) => m.is_match(haystack),
Word(ref m) => m.is_match(haystack),
}
@@ -573,6 +636,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.is_match_at(haystack, at),
MultiLiteral(ref m) => m.is_match_at(haystack, at),
CRLF(ref m) => m.is_match_at(haystack, at),
Word(ref m) => m.is_match_at(haystack, at),
}
@@ -585,6 +649,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.shortest_match(haystack),
MultiLiteral(ref m) => m.shortest_match(haystack),
CRLF(ref m) => m.shortest_match(haystack),
Word(ref m) => m.shortest_match(haystack),
}
@@ -598,6 +663,7 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.shortest_match_at(haystack, at),
MultiLiteral(ref m) => m.shortest_match_at(haystack, at),
CRLF(ref m) => m.shortest_match_at(haystack, at),
Word(ref m) => m.shortest_match_at(haystack, at),
}
@@ -698,7 +764,9 @@ impl Matcher for StandardMatcher {
at: usize,
caps: &mut RegexCaptures,
) -> Result<bool, NoError> {
Ok(self.regex.captures_read_at(&mut caps.locs, haystack, at).is_some())
Ok(self.regex.captures_read_at(
&mut caps.locations_mut(), haystack, at,
).is_some())
}
fn shortest_match_at(
@@ -725,54 +793,84 @@ impl Matcher for StandardMatcher {
/// index of the group using the corresponding matcher's `capture_index`
/// method, and then use that index with `RegexCaptures::get`.
#[derive(Clone, Debug)]
pub struct RegexCaptures {
/// Where the locations are stored.
locs: CaptureLocations,
/// These captures behave as if the capturing groups begin at the given
/// offset. When set to `0`, this has no affect and capture groups are
/// indexed like normal.
///
/// This is useful when building matchers that wrap arbitrary regular
/// expressions. For example, `WordMatcher` takes an existing regex `re`
/// and creates `(?:^|\W)(re)(?:$|\W)`, but hides the fact that the regex
/// has been wrapped from the caller. In order to do this, the matcher
/// and the capturing groups must behave as if `(re)` is the `0`th capture
/// group.
offset: usize,
/// When enable, the end of a match has `\r` stripped from it, if one
/// exists.
strip_crlf: bool,
pub struct RegexCaptures(RegexCapturesImp);
#[derive(Clone, Debug)]
enum RegexCapturesImp {
AhoCorasick {
/// The start and end of the match, corresponding to capture group 0.
mat: Option<Match>,
},
Regex {
/// Where the locations are stored.
locs: CaptureLocations,
/// These captures behave as if the capturing groups begin at the given
/// offset. When set to `0`, this has no affect and capture groups are
/// indexed like normal.
///
/// This is useful when building matchers that wrap arbitrary regular
/// expressions. For example, `WordMatcher` takes an existing regex
/// `re` and creates `(?:^|\W)(re)(?:$|\W)`, but hides the fact that
/// the regex has been wrapped from the caller. In order to do this,
/// the matcher and the capturing groups must behave as if `(re)` is
/// the `0`th capture group.
offset: usize,
/// When enable, the end of a match has `\r` stripped from it, if one
/// exists.
strip_crlf: bool,
},
}
impl Captures for RegexCaptures {
fn len(&self) -> usize {
self.locs.len().checked_sub(self.offset).unwrap()
match self.0 {
RegexCapturesImp::AhoCorasick { .. } => 1,
RegexCapturesImp::Regex { ref locs, offset, .. } => {
locs.len().checked_sub(offset).unwrap()
}
}
}
fn get(&self, i: usize) -> Option<Match> {
if !self.strip_crlf {
let actual = i.checked_add(self.offset).unwrap();
return self.locs.pos(actual).map(|(s, e)| Match::new(s, e));
}
match self.0 {
RegexCapturesImp::AhoCorasick { mat, .. } => {
if i == 0 {
mat
} else {
None
}
}
RegexCapturesImp::Regex { ref locs, offset, strip_crlf } => {
if !strip_crlf {
let actual = i.checked_add(offset).unwrap();
return locs.pos(actual).map(|(s, e)| Match::new(s, e));
}
// currently don't support capture offsetting with CRLF stripping
assert_eq!(self.offset, 0);
let m = match self.locs.pos(i).map(|(s, e)| Match::new(s, e)) {
None => return None,
Some(m) => m,
};
// If the end position of this match corresponds to the end position
// of the overall match, then we apply our CRLF stripping. Otherwise,
// we cannot assume stripping is correct.
if i == 0 || m.end() == self.locs.pos(0).unwrap().1 {
Some(m.with_end(m.end() - 1))
} else {
Some(m)
// currently don't support capture offsetting with CRLF
// stripping
assert_eq!(offset, 0);
let m = match locs.pos(i).map(|(s, e)| Match::new(s, e)) {
None => return None,
Some(m) => m,
};
// If the end position of this match corresponds to the end
// position of the overall match, then we apply our CRLF
// stripping. Otherwise, we cannot assume stripping is correct.
if i == 0 || m.end() == locs.pos(0).unwrap().1 {
Some(m.with_end(m.end() - 1))
} else {
Some(m)
}
}
}
}
}
impl RegexCaptures {
pub(crate) fn simple() -> RegexCaptures {
RegexCaptures(RegexCapturesImp::AhoCorasick { mat: None })
}
pub(crate) fn new(locs: CaptureLocations) -> RegexCaptures {
RegexCaptures::with_offset(locs, 0)
}
@@ -781,15 +879,53 @@ impl RegexCaptures {
locs: CaptureLocations,
offset: usize,
) -> RegexCaptures {
RegexCaptures { locs, offset, strip_crlf: false }
RegexCaptures(RegexCapturesImp::Regex {
locs, offset, strip_crlf: false,
})
}
pub(crate) fn locations(&mut self) -> &mut CaptureLocations {
&mut self.locs
pub(crate) fn locations(&self) -> &CaptureLocations {
match self.0 {
RegexCapturesImp::AhoCorasick { .. } => {
panic!("getting locations for simple captures is invalid")
}
RegexCapturesImp::Regex { ref locs, .. } => {
locs
}
}
}
pub(crate) fn locations_mut(&mut self) -> &mut CaptureLocations {
match self.0 {
RegexCapturesImp::AhoCorasick { .. } => {
panic!("getting locations for simple captures is invalid")
}
RegexCapturesImp::Regex { ref mut locs, .. } => {
locs
}
}
}
pub(crate) fn strip_crlf(&mut self, yes: bool) {
self.strip_crlf = yes;
match self.0 {
RegexCapturesImp::AhoCorasick { .. } => {
panic!("setting strip_crlf for simple captures is invalid")
}
RegexCapturesImp::Regex { ref mut strip_crlf, .. } => {
*strip_crlf = yes;
}
}
}
pub(crate) fn set_simple(&mut self, one: Option<Match>) {
match self.0 {
RegexCapturesImp::AhoCorasick { ref mut mat } => {
*mat = one;
}
RegexCapturesImp::Regex { .. } => {
panic!("setting simple captures for regex is invalid")
}
}
}
}

127
grep-regex/src/multi.rs Normal file
View File

@@ -0,0 +1,127 @@
use aho_corasick::{AhoCorasick, AhoCorasickBuilder, MatchKind};
use grep_matcher::{Matcher, Match, NoError};
use regex_syntax::hir::Hir;
use error::Error;
use matcher::RegexCaptures;
/// A matcher for an alternation of literals.
///
/// Ideally, this optimization would be pushed down into the regex engine, but
/// making this work correctly there would require quite a bit of refactoring.
/// Moreover, doing it one layer above lets us do thing like, "if we
/// specifically only want to search for literals, then don't bother with
/// regex parsing at all."
#[derive(Clone, Debug)]
pub struct MultiLiteralMatcher {
/// The Aho-Corasick automaton.
ac: AhoCorasick,
}
impl MultiLiteralMatcher {
/// Create a new multi-literal matcher from the given literals.
pub fn new<B: AsRef<[u8]>>(
literals: &[B],
) -> Result<MultiLiteralMatcher, Error> {
let ac = AhoCorasickBuilder::new()
.match_kind(MatchKind::LeftmostFirst)
.auto_configure(literals)
.build_with_size::<usize, _, _>(literals)
.map_err(Error::regex)?;
Ok(MultiLiteralMatcher { ac })
}
}
impl Matcher for MultiLiteralMatcher {
type Captures = RegexCaptures;
type Error = NoError;
fn find_at(
&self,
haystack: &[u8],
at: usize,
) -> Result<Option<Match>, NoError> {
match self.ac.find(&haystack[at..]) {
None => Ok(None),
Some(m) => Ok(Some(Match::new(at + m.start(), at + m.end()))),
}
}
fn new_captures(&self) -> Result<RegexCaptures, NoError> {
Ok(RegexCaptures::simple())
}
fn capture_count(&self) -> usize {
1
}
fn capture_index(&self, _: &str) -> Option<usize> {
None
}
fn captures_at(
&self,
haystack: &[u8],
at: usize,
caps: &mut RegexCaptures,
) -> Result<bool, NoError> {
caps.set_simple(None);
let mat = self.find_at(haystack, at)?;
caps.set_simple(mat);
Ok(mat.is_some())
}
// We specifically do not implement other methods like find_iter. Namely,
// the iter methods are guaranteed to be correct by virtue of implementing
// find_at above.
}
/// Alternation literals checks if the given HIR is a simple alternation of
/// literals, and if so, returns them. Otherwise, this returns None.
pub fn alternation_literals(expr: &Hir) -> Option<Vec<Vec<u8>>> {
use regex_syntax::hir::{HirKind, Literal};
// This is pretty hacky, but basically, if `is_alternation_literal` is
// true, then we can make several assumptions about the structure of our
// HIR. This is what justifies the `unreachable!` statements below.
if !expr.is_alternation_literal() {
return None;
}
let alts = match *expr.kind() {
HirKind::Alternation(ref alts) => alts,
_ => return None, // one literal isn't worth it
};
let extendlit = |lit: &Literal, dst: &mut Vec<u8>| {
match *lit {
Literal::Unicode(c) => {
let mut buf = [0; 4];
dst.extend_from_slice(c.encode_utf8(&mut buf).as_bytes());
}
Literal::Byte(b) => {
dst.push(b);
}
}
};
let mut lits = vec![];
for alt in alts {
let mut lit = vec![];
match *alt.kind() {
HirKind::Empty => {}
HirKind::Literal(ref x) => extendlit(x, &mut lit),
HirKind::Concat(ref exprs) => {
for e in exprs {
match *e.kind() {
HirKind::Literal(ref x) => extendlit(x, &mut lit),
_ => unreachable!("expected literal, got {:?}", e),
}
}
}
_ => unreachable!("expected literal or concat, got {:?}", alt),
}
lits.push(lit);
}
Some(lits)
}

9
grep-regex/src/word.rs
View File

@@ -55,6 +55,11 @@ impl WordMatcher {
}
Ok(WordMatcher { regex, names, locs })
}
/// Return the underlying regex used by this matcher.
pub fn regex(&self) -> &Regex {
&self.regex
}
}
impl Matcher for WordMatcher {
@@ -98,7 +103,9 @@ impl Matcher for WordMatcher {
at: usize,
caps: &mut RegexCaptures,
) -> Result<bool, NoError> {
let r = self.regex.captures_read_at(caps.locations(), haystack, at);
let r = self.regex.captures_read_at(
caps.locations_mut(), haystack, at,
);
Ok(r.is_some())
}

4
grep-searcher/Cargo.toml
View File

@@ -13,12 +13,12 @@ keywords = ["regex", "grep", "egrep", "search", "pattern"]
license = "Unlicense/MIT"
[dependencies]
bstr = { version = "0.1.2", default-features = false, features = ["std"] }
bytecount = "0.5"
encoding_rs = "0.8.14"
encoding_rs_io = "0.1.4"
encoding_rs_io = "0.1.6"
grep-matcher = { version = "0.1.1", path = "../grep-matcher" }
log = "0.4.5"
memchr = "2.1"
memmap = "0.7"
[dev-dependencies]

2
grep-searcher/src/lib.rs
View File

@@ -99,13 +99,13 @@ searches stdin.
#![deny(missing_docs)]
extern crate bstr;
extern crate bytecount;
extern crate encoding_rs;
extern crate encoding_rs_io;
extern crate grep_matcher;
#[macro_use]
extern crate log;
extern crate memchr;
extern crate memmap;
#[cfg(test)]
extern crate regex;

133
grep-searcher/src/line_buffer.rs
View File

@@ -1,8 +1,7 @@
use std::cmp;
use std::io;
use std::ptr;
use memchr::{memchr, memrchr};
use bstr::{BStr, BString};
/// The default buffer capacity that we use for the line buffer.
pub(crate) const DEFAULT_BUFFER_CAPACITY: usize = 8 * (1<<10); // 8 KB
@@ -123,7 +122,7 @@ impl LineBufferBuilder {
pub fn build(&self) -> LineBuffer {
LineBuffer {
config: self.config,
buf: vec![0; self.config.capacity],
buf: BString::from(vec![0; self.config.capacity]),
pos: 0,
last_lineterm: 0,
end: 0,
@@ -255,6 +254,12 @@ impl<'b, R: io::Read> LineBufferReader<'b, R> {
/// Return the contents of this buffer.
pub fn buffer(&self) -> &[u8] {
self.line_buffer.buffer().as_bytes()
}
/// Return the underlying buffer as a byte string. Used for tests only.
#[cfg(test)]
fn bstr(&self) -> &BStr {
self.line_buffer.buffer()
}
@@ -284,7 +289,7 @@ pub struct LineBuffer {
/// The configuration of this buffer.
config: Config,
/// The primary buffer with which to hold data.
buf: Vec<u8>,
buf: BString,
/// The current position of this buffer. This is always a valid sliceable
/// index into `buf`, and its maximum value is the length of `buf`.
pos: usize,
@@ -312,6 +317,14 @@ pub struct LineBuffer {
}
impl LineBuffer {
/// Set the binary detection method used on this line buffer.
///
/// This permits dynamically changing the binary detection strategy on
/// an existing line buffer without needing to create a new one.
pub fn set_binary_detection(&mut self, binary: BinaryDetection) {
self.config.binary = binary;
}
/// Reset this buffer, such that it can be used with a new reader.
fn clear(&mut self) {
self.pos = 0;
@@ -339,13 +352,13 @@ impl LineBuffer {
}
/// Return the contents of this buffer.
fn buffer(&self) -> &[u8] {
fn buffer(&self) -> &BStr {
&self.buf[self.pos..self.last_lineterm]
}
/// Return the contents of the free space beyond the end of the buffer as
/// a mutable slice.
fn free_buffer(&mut self) -> &mut [u8] {
fn free_buffer(&mut self) -> &mut BStr {
&mut self.buf[self.end..]
}
@@ -396,7 +409,7 @@ impl LineBuffer {
assert_eq!(self.pos, 0);
loop {
self.ensure_capacity()?;
let readlen = rdr.read(self.free_buffer())?;
let readlen = rdr.read(self.free_buffer().as_bytes_mut())?;
if readlen == 0 {
// We're only done reading for good once the caller has
// consumed everything.
@@ -416,7 +429,7 @@ impl LineBuffer {
match self.config.binary {
BinaryDetection::None => {} // nothing to do
BinaryDetection::Quit(byte) => {
if let Some(i) = memchr(byte, newbytes) {
if let Some(i) = newbytes.find_byte(byte) {
self.end = oldend + i;
self.last_lineterm = self.end;
self.binary_byte_offset =
@@ -444,7 +457,7 @@ impl LineBuffer {
}
// Update our `last_lineterm` positions if we read one.
if let Some(i) = memrchr(self.config.lineterm, newbytes) {
if let Some(i) = newbytes.rfind_byte(self.config.lineterm) {
self.last_lineterm = oldend + i + 1;
return Ok(true);
}
@@ -467,40 +480,8 @@ impl LineBuffer {
return;
}
assert!(self.pos < self.end && self.end <= self.buf.len());
let roll_len = self.end - self.pos;
unsafe {
// SAFETY: A buffer contains Copy data, so there's no problem
// moving it around. Safety also depends on our indices being
// in bounds, which they should always be, and we enforce with
// an assert above.
//
// It seems like it should be possible to do this in safe code that
// results in the same codegen. I tried the obvious:
//
// for (src, dst) in (self.pos..self.end).zip(0..) {
// self.buf[dst] = self.buf[src];
// }
//
// But the above does not work, and in fact compiles down to a slow
// byte-by-byte loop. I tried a few other minor variations, but
// alas, better minds might prevail.
//
// Overall, this doesn't save us *too* much. It mostly matters when
// the number of bytes we're copying is large, which can happen
// if the searcher is asked to produce a lot of context. We could
// decide this isn't worth it, but it does make an appreciable
// impact at or around the context=30 range on my machine.
//
// We could also use a temporary buffer that compiles down to two
// memcpys and is faster than the byte-at-a-time loop, but it
// complicates our options for limiting memory allocation a bit.
ptr::copy(
self.buf[self.pos..].as_ptr(),
self.buf.as_mut_ptr(),
roll_len,
);
}
self.buf.copy_within(self.pos.., 0);
self.pos = 0;
self.last_lineterm = roll_len;
self.end = roll_len;
@@ -536,14 +517,15 @@ impl LineBuffer {
}
}
/// Replaces `src` with `replacement` in bytes.
fn replace_bytes(bytes: &mut [u8], src: u8, replacement: u8) -> Option<usize> {
/// Replaces `src` with `replacement` in bytes, and return the offset of the
/// first replacement, if one exists.
fn replace_bytes(bytes: &mut BStr, src: u8, replacement: u8) -> Option<usize> {
if src == replacement {
return None;
}
let mut first_pos = None;
let mut pos = 0;
while let Some(i) = memchr(src, &bytes[pos..]).map(|i| pos + i) {
while let Some(i) = bytes[pos..].find_byte(src).map(|i| pos + i) {
if first_pos.is_none() {
first_pos = Some(i);
}
@@ -560,6 +542,7 @@ fn replace_bytes(bytes: &mut [u8], src: u8, replacement: u8) -> Option<usize> {
#[cfg(test)]
mod tests {
use std::str;
use bstr::BString;
use super::*;
const SHERLOCK: &'static str = "\
@@ -575,18 +558,14 @@ and exhibited clearly, with a label attached.\
slice.to_string()
}
fn btos(slice: &[u8]) -> &str {
str::from_utf8(slice).unwrap()
}
fn replace_str(
slice: &str,
src: u8,
replacement: u8,
) -> (String, Option<usize>) {
let mut dst = slice.to_string().into_bytes();
let mut dst = BString::from(slice);
let result = replace_bytes(&mut dst, src, replacement);
(String::from_utf8(dst).unwrap(), result)
(dst.into_string().unwrap(), result)
}
#[test]
@@ -607,7 +586,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\n");
assert_eq!(rdr.bstr(), "homer\nlisa\n");
assert_eq!(rdr.absolute_byte_offset(), 0);
rdr.consume(5);
assert_eq!(rdr.absolute_byte_offset(), 5);
@@ -615,7 +594,7 @@ and exhibited clearly, with a label attached.\
assert_eq!(rdr.absolute_byte_offset(), 11);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "maggie");
assert_eq!(rdr.bstr(), "maggie");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -630,7 +609,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie\n");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -645,7 +624,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "\n");
assert_eq!(rdr.bstr(), "\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -660,7 +639,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "\n\n");
assert_eq!(rdr.bstr(), "\n\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -698,12 +677,12 @@ and exhibited clearly, with a label attached.\
let mut linebuf = LineBufferBuilder::new().capacity(1).build();
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
let mut got = vec![];
let mut got = BString::new();
while rdr.fill().unwrap() {
got.extend(rdr.buffer());
got.push(rdr.buffer());
rdr.consume_all();
}
assert_eq!(bytes, btos(&got));
assert_eq!(bytes, got);
assert_eq!(rdr.absolute_byte_offset(), bytes.len() as u64);
assert_eq!(rdr.binary_byte_offset(), None);
}
@@ -718,11 +697,11 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\n");
assert_eq!(rdr.bstr(), "homer\n");
rdr.consume_all();
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "lisa\n");
assert_eq!(rdr.bstr(), "lisa\n");
rdr.consume_all();
// This returns an error because while we have just enough room to
@@ -732,11 +711,11 @@ and exhibited clearly, with a label attached.\
assert!(rdr.fill().is_err());
// We can mush on though!
assert_eq!(btos(rdr.buffer()), "m");
assert_eq!(rdr.bstr(), "m");
rdr.consume_all();
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "aggie");
assert_eq!(rdr.bstr(), "aggie");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -752,16 +731,16 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\n");
assert_eq!(rdr.bstr(), "homer\n");
rdr.consume_all();
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "lisa\n");
assert_eq!(rdr.bstr(), "lisa\n");
rdr.consume_all();
// We have just enough space.
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "maggie");
assert_eq!(rdr.bstr(), "maggie");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -777,7 +756,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().is_err());
assert_eq!(btos(rdr.buffer()), "");
assert_eq!(rdr.bstr(), "");
}
#[test]
@@ -789,7 +768,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nli\x00sa\nmaggie\n");
assert_eq!(rdr.bstr(), "homer\nli\x00sa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -808,7 +787,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nli");
assert_eq!(rdr.bstr(), "homer\nli");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -825,7 +804,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(!rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "");
assert_eq!(rdr.bstr(), "");
assert_eq!(rdr.absolute_byte_offset(), 0);
assert_eq!(rdr.binary_byte_offset(), Some(0));
}
@@ -841,7 +820,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie\n");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -860,7 +839,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -878,7 +857,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "\
assert_eq!(rdr.bstr(), "\
For the Doctor Watsons of this world, as opposed to the Sherlock
Holmeses, s\
");
@@ -901,7 +880,7 @@ Holmeses, s\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nli\nsa\nmaggie\n");
assert_eq!(rdr.bstr(), "homer\nli\nsa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -920,7 +899,7 @@ Holmeses, s\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "\nhomer\nlisa\nmaggie\n");
assert_eq!(rdr.bstr(), "\nhomer\nlisa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -939,7 +918,7 @@ Holmeses, s\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie\n\n");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie\n\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -958,7 +937,7 @@ Holmeses, s\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie\n\n");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie\n\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());

14
grep-searcher/src/lines.rs
View File

@@ -2,8 +2,8 @@
A collection of routines for performing operations on lines.
*/
use bstr::B;
use bytecount;
use memchr::{memchr, memrchr};
use grep_matcher::{LineTerminator, Match};
/// An iterator over lines in a particular slice of bytes.
@@ -85,7 +85,7 @@ impl LineStep {
#[inline(always)]
fn next_impl(&mut self, mut bytes: &[u8]) -> Option<(usize, usize)> {
bytes = &bytes[..self.end];
match memchr(self.line_term, &bytes[self.pos..]) {
match B(&bytes[self.pos..]).find_byte(self.line_term) {
None => {
if self.pos < bytes.len() {
let m = (self.pos, bytes.len());
@@ -135,14 +135,16 @@ pub fn locate(
line_term: u8,
range: Match,
) -> Match {
let line_start = memrchr(line_term, &bytes[0..range.start()])
let line_start = B(&bytes[..range.start()])
.rfind_byte(line_term)
.map_or(0, |i| i + 1);
let line_end =
if range.end() > line_start && bytes[range.end() - 1] == line_term {
range.end()
} else {
memchr(line_term, &bytes[range.end()..])
.map_or(bytes.len(), |i| range.end() + i + 1)
B(&bytes[range.end()..])
.find_byte(line_term)
.map_or(bytes.len(), |i| range.end() + i + 1)
};
Match::new(line_start, line_end)
}
@@ -180,7 +182,7 @@ fn preceding_by_pos(
pos -= 1;
}
loop {
match memrchr(line_term, &bytes[..pos]) {
match B(&bytes[..pos]).rfind_byte(line_term) {
None => {
return 0;
}

40
grep-searcher/src/searcher/core.rs
View File

@@ -1,6 +1,6 @@
use std::cmp;
use memchr::memchr;
use bstr::B;
use grep_matcher::{LineMatchKind, Matcher};
use lines::{self, LineStep};
@@ -90,6 +90,13 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
self.sink_matched(buf, range)
}
pub fn binary_data(
&mut self,
binary_byte_offset: u64,
) -> Result<bool, S::Error> {
self.sink.binary_data(&self.searcher, binary_byte_offset)
}
pub fn begin(&mut self) -> Result<bool, S::Error> {
self.sink.begin(&self.searcher)
}
@@ -141,19 +148,28 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
consumed
}
pub fn detect_binary(&mut self, buf: &[u8], range: &Range) -> bool {
pub fn detect_binary(
&mut self,
buf: &[u8],
range: &Range,
) -> Result<bool, S::Error> {
if self.binary_byte_offset.is_some() {
return true;
return Ok(self.config.binary.quit_byte().is_some());
}
let binary_byte = match self.config.binary.0 {
BinaryDetection::Quit(b) => b,
_ => return false,
BinaryDetection::Convert(b) => b,
_ => return Ok(false),
};
if let Some(i) = memchr(binary_byte, &buf[*range]) {
self.binary_byte_offset = Some(range.start() + i);
true
if let Some(i) = B(&buf[*range]).find_byte(binary_byte) {
let offset = range.start() + i;
self.binary_byte_offset = Some(offset);
if !self.binary_data(offset as u64)? {
return Ok(true);
}
Ok(self.config.binary.quit_byte().is_some())
} else {
false
Ok(false)
}
}
@@ -416,7 +432,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
buf: &[u8],
range: &Range,
) -> Result<bool, S::Error> {
if self.binary && self.detect_binary(buf, range) {
if self.binary && self.detect_binary(buf, range)? {
return Ok(false);
}
if !self.sink_break_context(range.start())? {
@@ -448,7 +464,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
buf: &[u8],
range: &Range,
) -> Result<bool, S::Error> {
if self.binary && self.detect_binary(buf, range) {
if self.binary && self.detect_binary(buf, range)? {
return Ok(false);
}
self.count_lines(buf, range.start());
@@ -478,7 +494,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
) -> Result<bool, S::Error> {
assert!(self.after_context_left >= 1);
if self.binary && self.detect_binary(buf, range) {
if self.binary && self.detect_binary(buf, range)? {
return Ok(false);
}
self.count_lines(buf, range.start());
@@ -507,7 +523,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
buf: &[u8],
range: &Range,
) -> Result<bool, S::Error> {
if self.binary && self.detect_binary(buf, range) {
if self.binary && self.detect_binary(buf, range)? {
return Ok(false);
}
self.count_lines(buf, range.start());

19
grep-searcher/src/searcher/glue.rs
View File

@@ -51,6 +51,7 @@ where M: Matcher,
fn fill(&mut self) -> Result<bool, S::Error> {
assert!(self.rdr.buffer()[self.core.pos()..].is_empty());
let already_binary = self.rdr.binary_byte_offset().is_some();
let old_buf_len = self.rdr.buffer().len();
let consumed = self.core.roll(self.rdr.buffer());
self.rdr.consume(consumed);
@@ -58,7 +59,14 @@ where M: Matcher,
Err(err) => return Err(S::Error::error_io(err)),
Ok(didread) => didread,
};
if !didread || self.rdr.binary_byte_offset().is_some() {
if !already_binary {
if let Some(offset) = self.rdr.binary_byte_offset() {
if !self.core.binary_data(offset)? {
return Ok(false);
}
}
}
if !didread || self.should_binary_quit() {
return Ok(false);
}
// If rolling the buffer didn't result in consuming anything and if
@@ -71,6 +79,11 @@ where M: Matcher,
}
Ok(true)
}
fn should_binary_quit(&self) -> bool {
self.rdr.binary_byte_offset().is_some()
&& self.config.binary.quit_byte().is_some()
}
}
#[derive(Debug)]
@@ -103,7 +116,7 @@ impl<'s, M: Matcher, S: Sink> SliceByLine<'s, M, S> {
DEFAULT_BUFFER_CAPACITY,
);
let binary_range = Range::new(0, binary_upto);
if !self.core.detect_binary(self.slice, &binary_range) {
if !self.core.detect_binary(self.slice, &binary_range)? {
while
!self.slice[self.core.pos()..].is_empty()
&& self.core.match_by_line(self.slice)?
@@ -155,7 +168,7 @@ impl<'s, M: Matcher, S: Sink> MultiLine<'s, M, S> {
DEFAULT_BUFFER_CAPACITY,
);
let binary_range = Range::new(0, binary_upto);
if !self.core.detect_binary(self.slice, &binary_range) {
if !self.core.detect_binary(self.slice, &binary_range)? {
let mut keepgoing = true;
while !self.slice[self.core.pos()..].is_empty() && keepgoing {
keepgoing = self.sink()?;

105
grep-searcher/src/searcher/mod.rs
View File

@@ -75,25 +75,41 @@ impl BinaryDetection {
BinaryDetection(line_buffer::BinaryDetection::Quit(binary_byte))
}
// TODO(burntsushi): Figure out how to make binary conversion work. This
// permits implementing GNU grep's default behavior, which is to zap NUL
// bytes but still execute a search (if a match is detected, then GNU grep
// stops and reports that a match was found but doesn't print the matching
// line itself).
//
// This behavior is pretty simple to implement using the line buffer (and
// in fact, it is already implemented and tested), since there's a fixed
// size buffer that we can easily write to. The issue arises when searching
// a `&[u8]` (whether on the heap or via a memory map), since this isn't
// something we can easily write to.
/// The given byte is searched in all contents read by the line buffer. If
/// it occurs, then it is replaced by the line terminator. The line buffer
/// guarantees that this byte will never be observable by callers.
#[allow(dead_code)]
fn convert(binary_byte: u8) -> BinaryDetection {
/// Binary detection is performed by looking for the given byte, and
/// replacing it with the line terminator configured on the searcher.
/// (If the searcher is configured to use `CRLF` as the line terminator,
/// then this byte is replaced by just `LF`.)
///
/// When searching is performed using a fixed size buffer, then the
/// contents of that buffer are always searched for the presence of this
/// byte and replaced with the line terminator. In effect, the caller is
/// guaranteed to never observe this byte while searching.
///
/// When searching is performed with the entire contents mapped into
/// memory, then this setting has no effect and is ignored.
pub fn convert(binary_byte: u8) -> BinaryDetection {
BinaryDetection(line_buffer::BinaryDetection::Convert(binary_byte))
}
/// If this binary detection uses the "quit" strategy, then this returns
/// the byte that will cause a search to quit. In any other case, this
/// returns `None`.
pub fn quit_byte(&self) -> Option<u8> {
match self.0 {
line_buffer::BinaryDetection::Quit(b) => Some(b),
_ => None,
}
}
/// If this binary detection uses the "convert" strategy, then this returns
/// the byte that will be replaced by the line terminator. In any other
/// case, this returns `None`.
pub fn convert_byte(&self) -> Option<u8> {
match self.0 {
line_buffer::BinaryDetection::Convert(b) => Some(b),
_ => None,
}
}
}
/// An encoding to use when searching.
@@ -155,6 +171,8 @@ pub struct Config {
/// An encoding that, when present, causes the searcher to transcode all
/// input from the encoding to UTF-8.
encoding: Option<Encoding>,
/// Whether to do automatic transcoding based on a BOM or not.
bom_sniffing: bool,
}
impl Default for Config {
@@ -171,6 +189,7 @@ impl Default for Config {
binary: BinaryDetection::default(),
multi_line: false,
encoding: None,
bom_sniffing: true,
}
}
}
@@ -303,12 +322,15 @@ impl SearcherBuilder {
config.before_context = 0;
config.after_context = 0;
}
let mut decode_builder = DecodeReaderBytesBuilder::new();
decode_builder
.encoding(self.config.encoding.as_ref().map(|e| e.0))
.utf8_passthru(true)
.strip_bom(true)
.bom_override(true);
.strip_bom(self.config.bom_sniffing)
.bom_override(true)
.bom_sniffing(self.config.bom_sniffing);
Searcher {
config: config,
decode_builder: decode_builder,
@@ -506,12 +528,13 @@ impl SearcherBuilder {
/// transcoding process encounters an error, then bytes are replaced with
/// the Unicode replacement codepoint.
///
/// When no encoding is specified (the default), then BOM sniffing is used
/// to determine whether the source data is UTF-8 or UTF-16, and
/// transcoding will be performed automatically. If no BOM could be found,
/// then the source data is searched _as if_ it were UTF-8. However, so
/// long as the source data is at least ASCII compatible, then it is
/// possible for a search to produce useful results.
/// When no encoding is specified (the default), then BOM sniffing is
/// used (if it's enabled, which it is, by default) to determine whether
/// the source data is UTF-8 or UTF-16, and transcoding will be performed
/// automatically. If no BOM could be found, then the source data is
/// searched _as if_ it were UTF-8. However, so long as the source data is
/// at least ASCII compatible, then it is possible for a search to produce
/// useful results.
pub fn encoding(
&mut self,
encoding: Option<Encoding>,
@@ -519,6 +542,23 @@ impl SearcherBuilder {
self.config.encoding = encoding;
self
}
/// Enable automatic transcoding based on BOM sniffing.
///
/// When this is enabled and an explicit encoding is not set, then this
/// searcher will try to detect the encoding of the bytes being searched
/// by sniffing its byte-order mark (BOM). In particular, when this is
/// enabled, UTF-16 encoded files will be searched seamlessly.
///
/// When this is disabled and if an explicit encoding is not set, then
/// the bytes from the source stream will be passed through unchanged,
/// including its BOM, if one is present.
///
/// This is enabled by default.
pub fn bom_sniffing(&mut self, yes: bool) -> &mut SearcherBuilder {
self.config.bom_sniffing = yes;
self
}
}
/// A searcher executes searches over a haystack and writes results to a caller
@@ -715,6 +755,12 @@ impl Searcher {
}
}
/// Set the binary detection method used on this searcher.
pub fn set_binary_detection(&mut self, detection: BinaryDetection) {
self.config.binary = detection.clone();
self.line_buffer.borrow_mut().set_binary_detection(detection.0);
}
/// Check that the searcher's configuration and the matcher are consistent
/// with each other.
fn check_config<M: Matcher>(&self, matcher: M) -> Result<(), ConfigError> {
@@ -738,7 +784,8 @@ impl Searcher {
/// Returns true if and only if the given slice needs to be transcoded.
fn slice_needs_transcoding(&self, slice: &[u8]) -> bool {
self.config.encoding.is_some() || slice_has_utf16_bom(slice)
self.config.encoding.is_some()
|| (self.config.bom_sniffing && slice_has_utf16_bom(slice))
}
}
@@ -753,6 +800,12 @@ impl Searcher {
self.config.line_term
}
/// Returns the type of binary detection configured on this searcher.
#[inline]
pub fn binary_detection(&self) -> &BinaryDetection {
&self.config.binary
}
/// Returns true if and only if this searcher is configured to invert its
/// search results. That is, matching lines are lines that do **not** match
/// the searcher's matcher.

40
grep-searcher/src/sink.rs
View File

@@ -167,6 +167,28 @@ pub trait Sink {
Ok(true)
}
/// This method is called whenever binary detection is enabled and binary
/// data is found. If binary data is found, then this is called at least
/// once for the first occurrence with the absolute byte offset at which
/// the binary data begins.
///
/// If this returns `true`, then searching continues. If this returns
/// `false`, then searching is stopped immediately and `finish` is called.
///
/// If this returns an error, then searching is stopped immediately,
/// `finish` is not called and the error is bubbled back up to the caller
/// of the searcher.
///
/// By default, it does nothing and returns `true`.
#[inline]
fn binary_data(
&mut self,
_searcher: &Searcher,
_binary_byte_offset: u64,
) -> Result<bool, Self::Error> {
Ok(true)
}
/// This method is called when a search has begun, before any search is
/// executed. By default, this does nothing.
///
@@ -228,6 +250,15 @@ impl<'a, S: Sink> Sink for &'a mut S {
(**self).context_break(searcher)
}
#[inline]
fn binary_data(
&mut self,
searcher: &Searcher,
binary_byte_offset: u64,
) -> Result<bool, S::Error> {
(**self).binary_data(searcher, binary_byte_offset)
}
#[inline]
fn begin(
&mut self,
@@ -275,6 +306,15 @@ impl<S: Sink + ?Sized> Sink for Box<S> {
(**self).context_break(searcher)
}
#[inline]
fn binary_data(
&mut self,
searcher: &Searcher,
binary_byte_offset: u64,
) -> Result<bool, S::Error> {
(**self).binary_data(searcher, binary_byte_offset)
}
#[inline]
fn begin(
&mut self,

5
grep-searcher/src/testutil.rs
View File

@@ -1,10 +1,10 @@
use std::io::{self, Write};
use std::str;
use bstr::B;
use grep_matcher::{
LineMatchKind, LineTerminator, Match, Matcher, NoCaptures, NoError,
};
use memchr::memchr;
use regex::bytes::{Regex, RegexBuilder};
use searcher::{BinaryDetection, Searcher, SearcherBuilder};
@@ -94,7 +94,8 @@ impl Matcher for RegexMatcher {
}
// Make it interesting and return the last byte in the current
// line.
let i = memchr(self.line_term.unwrap().as_byte(), haystack)
let i = B(haystack)
.find_byte(self.line_term.unwrap().as_byte())
.map(|i| i)
.unwrap_or(haystack.len() - 1);
Ok(Some(LineMatchKind::Candidate(i)))

2
ignore/Cargo.toml
View File

@@ -19,7 +19,7 @@ bench = false
[dependencies]
crossbeam-channel = "0.3.6"
globset = { version = "0.4.2", path = "../globset" }
globset = { version = "0.4.3", path = "../globset" }
lazy_static = "1.1"
log = "0.4.5"
memchr = "2.1"

19
ignore/src/types.rs
View File

@@ -111,7 +111,7 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("brotli", &["*.br"]),
("buildstream", &["*.bst"]),
("bzip2", &["*.bz2", "*.tbz2"]),
("c", &["*.c", "*.h", "*.H", "*.cats"]),
("c", &["*.[chH]", "*.[chH].in", "*.cats"]),
("cabal", &["*.cabal"]),
("cbor", &["*.cbor"]),
("ceylon", &["*.ceylon"]),
@@ -121,8 +121,8 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("creole", &["*.creole"]),
("config", &["*.cfg", "*.conf", "*.config", "*.ini"]),
("cpp", &[
"*.C", "*.cc", "*.cpp", "*.cxx",
"*.h", "*.H", "*.hh", "*.hpp", "*.hxx", "*.inl",
"*.[ChH]", "*.cc", "*.[ch]pp", "*.[ch]xx", "*.hh", "*.inl",
"*.[ChH].in", "*.cc.in", "*.[ch]pp.in", "*.[ch]xx.in", "*.hh.in",
]),
("crystal", &["Projectfile", "*.cr"]),
("cs", &["*.cs"]),
@@ -156,7 +156,7 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("hs", &["*.hs", "*.lhs"]),
("html", &["*.htm", "*.html", "*.ejs"]),
("idris", &["*.idr", "*.lidr"]),
("java", &["*.java", "*.jsp"]),
("java", &["*.java", "*.jsp", "*.jspx", "*.properties"]),
("jinja", &["*.j2", "*.jinja", "*.jinja2"]),
("js", &[
"*.js", "*.jsx", "*.vue",
@@ -196,14 +196,16 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
"OFL-*[0-9]*",
]),
("lisp", &["*.el", "*.jl", "*.lisp", "*.lsp", "*.sc", "*.scm"]),
("lock", &["*.lock", "package-lock.json"]),
("log", &["*.log"]),
("lua", &["*.lua"]),
("lzma", &["*.lzma"]),
("lz4", &["*.lz4"]),
("m4", &["*.ac", "*.m4"]),
("make", &[
"gnumakefile", "Gnumakefile", "GNUmakefile",
"makefile", "Makefile",
"[Gg][Nn][Uu]makefile", "[Mm]akefile",
"[Gg][Nn][Uu]makefile.am", "[Mm]akefile.am",
"[Gg][Nn][Uu]makefile.in", "[Mm]akefile.in",
"*.mk", "*.mak"
]),
("mako", &["*.mako", "*.mao"]),
@@ -299,7 +301,10 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("vimscript", &["*.vim"]),
("wiki", &["*.mediawiki", "*.wiki"]),
("webidl", &["*.idl", "*.webidl", "*.widl"]),
("xml", &["*.xml", "*.xml.dist"]),
("xml", &[
"*.xml", "*.xml.dist", "*.dtd", "*.xsl", "*.xslt", "*.xsd", "*.xjb",
"*.rng", "*.sch",
]),
("xz", &["*.xz", "*.txz"]),
("yacc", &["*.y"]),
("yaml", &["*.yaml", "*.yml"]),

172
src/app.rs
View File

@@ -27,6 +27,9 @@ configuration file. The file can specify one shell argument per line. Lines
starting with '#' are ignored. For more details, see the man page or the
README.
Tip: to disable all smart filtering and make ripgrep behave a bit more like
classical grep, use 'rg -uuu'.
Project home page: https://github.com/BurntSushi/ripgrep
Use -h for short descriptions and --help for more details.";
@@ -544,7 +547,9 @@ pub fn all_args_and_flags() -> Vec<RGArg> {
// flags are hidden and merely mentioned in the docs of the corresponding
// "positive" flag.
flag_after_context(&mut args);
flag_auto_hybrid_regex(&mut args);
flag_before_context(&mut args);
flag_binary(&mut args);
flag_block_buffered(&mut args);
flag_byte_offset(&mut args);
flag_case_sensitive(&mut args);
@@ -578,6 +583,7 @@ pub fn all_args_and_flags() -> Vec<RGArg> {
flag_line_number(&mut args);
flag_line_regexp(&mut args);
flag_max_columns(&mut args);
flag_max_columns_preview(&mut args);
flag_max_count(&mut args);
flag_max_depth(&mut args);
flag_max_filesize(&mut args);
@@ -600,6 +606,7 @@ pub fn all_args_and_flags() -> Vec<RGArg> {
flag_path_separator(&mut args);
flag_passthru(&mut args);
flag_pcre2(&mut args);
flag_pcre2_version(&mut args);
flag_pre(&mut args);
flag_pre_glob(&mut args);
flag_pretty(&mut args);
@@ -646,7 +653,7 @@ will be provided. Namely, the following is equivalent to the above:
let arg = RGArg::positional("pattern", "PATTERN")
.help(SHORT).long_help(LONG)
.required_unless(&[
"file", "files", "regexp", "type-list",
"file", "files", "regexp", "type-list", "pcre2-version",
]);
args.push(arg);
}
@@ -677,6 +684,50 @@ This overrides the --context flag.
args.push(arg);
}
fn flag_auto_hybrid_regex(args: &mut Vec<RGArg>) {
const SHORT: &str = "Dynamically use PCRE2 if necessary.";
const LONG: &str = long!("\
When this flag is used, ripgrep will dynamically choose between supported regex
engines depending on the features used in a pattern. When ripgrep chooses a
regex engine, it applies that choice for every regex provided to ripgrep (e.g.,
via multiple -e/--regexp or -f/--file flags).
As an example of how this flag might behave, ripgrep will attempt to use
its default finite automata based regex engine whenever the pattern can be
successfully compiled with that regex engine. If PCRE2 is enabled and if the
pattern given could not be compiled with the default regex engine, then PCRE2
will be automatically used for searching. If PCRE2 isn't available, then this
flag has no effect because there is only one regex engine to choose from.
In the future, ripgrep may adjust its heuristics for how it decides which
regex engine to use. In general, the heuristics will be limited to a static
analysis of the patterns, and not to any specific runtime behavior observed
while searching files.
The primary downside of using this flag is that it may not always be obvious
which regex engine ripgrep uses, and thus, the match semantics or performance
profile of ripgrep may subtly and unexpectedly change. However, in many cases,
all regex engines will agree on what constitutes a match and it can be nice
to transparently support more advanced regex features like look-around and
backreferences without explicitly needing to enable them.
This flag can be disabled with --no-auto-hybrid-regex.
");
let arg = RGArg::switch("auto-hybrid-regex")
.help(SHORT).long_help(LONG)
.overrides("no-auto-hybrid-regex")
.overrides("pcre2")
.overrides("no-pcre2");
args.push(arg);
let arg = RGArg::switch("no-auto-hybrid-regex")
.hidden()
.overrides("auto-hybrid-regex")
.overrides("pcre2")
.overrides("no-pcre2");
args.push(arg);
}
fn flag_before_context(args: &mut Vec<RGArg>) {
const SHORT: &str = "Show NUM lines before each match.";
const LONG: &str = long!("\
@@ -691,6 +742,55 @@ This overrides the --context flag.
args.push(arg);
}
fn flag_binary(args: &mut Vec<RGArg>) {
const SHORT: &str = "Search binary files.";
const LONG: &str = long!("\
Enabling this flag will cause ripgrep to search binary files. By default,
ripgrep attempts to automatically skip binary files in order to improve the
relevance of results and make the search faster.
Binary files are heuristically detected based on whether they contain a NUL
byte or not. By default (without this flag set), once a NUL byte is seen,
ripgrep will stop searching the file. Usually, NUL bytes occur in the beginning
of most binary files. If a NUL byte occurs after a match, then ripgrep will
still stop searching the rest of the file, but a warning will be printed.
In contrast, when this flag is provided, ripgrep will continue searching a file
even if a NUL byte is found. In particular, if a NUL byte is found then ripgrep
will continue searching until either a match is found or the end of the file is
reached, whichever comes sooner. If a match is found, then ripgrep will stop
and print a warning saying that the search stopped prematurely.
If you want ripgrep to search a file without any special NUL byte handling at
all (and potentially print binary data to stdout), then you should use the
'-a/--text' flag.
The '--binary' flag is a flag for controlling ripgrep's automatic filtering
mechanism. As such, it does not need to be used when searching a file
explicitly or when searching stdin. That is, it is only applicable when
recursively searching a directory.
Note that when the '-u/--unrestricted' flag is provided for a third time, then
this flag is automatically enabled.
This flag can be disabled with '--no-binary'. It overrides the '-a/--text'
flag.
");
let arg = RGArg::switch("binary")
.help(SHORT).long_help(LONG)
.overrides("no-binary")
.overrides("text")
.overrides("no-text");
args.push(arg);
let arg = RGArg::switch("no-binary")
.hidden()
.overrides("binary")
.overrides("text")
.overrides("no-text");
args.push(arg);
}
fn flag_block_buffered(args: &mut Vec<RGArg>) {
const SHORT: &str = "Force block buffering.";
const LONG: &str = long!("\
@@ -984,7 +1084,9 @@ Specify the text encoding that ripgrep will use on all files searched. The
default value is 'auto', which will cause ripgrep to do a best effort automatic
detection of encoding on a per-file basis. Automatic detection in this case
only applies to files that begin with a UTF-8 or UTF-16 byte-order mark (BOM).
No other automatic detection is performend.
No other automatic detection is performed. One can also specify 'none' which
will then completely disable BOM sniffing and always result in searching the
raw bytes, including a BOM if it's present, regardless of its encoding.
Other supported values can be found in the list of labels here:
https://encoding.spec.whatwg.org/#concept-encoding-get
@@ -1388,6 +1490,30 @@ When this flag is omitted or is set to 0, then it has no effect.
args.push(arg);
}
fn flag_max_columns_preview(args: &mut Vec<RGArg>) {
const SHORT: &str = "Print a preview for lines exceeding the limit.";
const LONG: &str = long!("\
When the '--max-columns' flag is used, ripgrep will by default completely
replace any line that is too long with a message indicating that a matching
line was removed. When this flag is combined with '--max-columns', a preview
of the line (corresponding to the limit size) is shown instead, where the part
of the line exceeding the limit is not shown.
If the '--max-columns' flag is not set, then this has no effect.
This flag can be disabled with '--no-max-columns-preview'.
");
let arg = RGArg::switch("max-columns-preview")
.help(SHORT).long_help(LONG)
.overrides("no-max-columns-preview");
args.push(arg);
let arg = RGArg::switch("no-max-columns-preview")
.hidden()
.overrides("max-columns-preview");
args.push(arg);
}
fn flag_max_count(args: &mut Vec<RGArg>) {
const SHORT: &str = "Limit the number of matches.";
const LONG: &str = long!("\
@@ -1857,12 +1983,28 @@ This flag can be disabled with --no-pcre2.
");
let arg = RGArg::switch("pcre2").short("P")
.help(SHORT).long_help(LONG)
.overrides("no-pcre2");
.overrides("no-pcre2")
.overrides("auto-hybrid-regex")
.overrides("no-auto-hybrid-regex");
args.push(arg);
let arg = RGArg::switch("no-pcre2")
.hidden()
.overrides("pcre2");
.overrides("pcre2")
.overrides("auto-hybrid-regex")
.overrides("no-auto-hybrid-regex");
args.push(arg);
}
fn flag_pcre2_version(args: &mut Vec<RGArg>) {
const SHORT: &str = "Print the version of PCRE2 that ripgrep uses.";
const LONG: &str = long!("\
When this flag is present, ripgrep will print the version of PCRE2 in use,
along with other information, and then exit. If PCRE2 is not available, then
ripgrep will print an error message and exit with an error code.
");
let arg = RGArg::switch("pcre2-version")
.help(SHORT).long_help(LONG);
args.push(arg);
}
@@ -1872,7 +2014,7 @@ fn flag_pre(args: &mut Vec<RGArg>) {
For each input FILE, search the standard output of COMMAND FILE rather than the
contents of FILE. This option expects the COMMAND program to either be an
absolute path or to be available in your PATH. Either an empty string COMMAND
or the `--no-pre` flag will disable this behavior.
or the '--no-pre' flag will disable this behavior.
WARNING: When this flag is set, ripgrep will unconditionally spawn a
process for every file that is searched. Therefore, this can incur an
@@ -2206,20 +2348,23 @@ escape codes to be printed that alter the behavior of your terminal.
When binary file detection is enabled it is imperfect. In general, it uses
a simple heuristic. If a NUL byte is seen during search, then the file is
considered binary and search stops (unless this flag is present).
Alternatively, if the '--binary' flag is used, then ripgrep will only quit
when it sees a NUL byte after it sees a match (or searches the entire file).
Note that when the `-u/--unrestricted` flag is provided for a third time, then
this flag is automatically enabled.
This flag can be disabled with --no-text.
This flag can be disabled with '--no-text'. It overrides the '--binary' flag.
");
let arg = RGArg::switch("text").short("a")
.help(SHORT).long_help(LONG)
.overrides("no-text");
.overrides("no-text")
.overrides("binary")
.overrides("no-binary");
args.push(arg);
let arg = RGArg::switch("no-text")
.hidden()
.overrides("text");
.overrides("text")
.overrides("binary")
.overrides("no-binary");
args.push(arg);
}
@@ -2348,8 +2493,7 @@ Reduce the level of \"smart\" searching. A single -u won't respect .gitignore
(etc.) files. Two -u flags will additionally search hidden files and
directories. Three -u flags will additionally search binary files.
-uu is roughly equivalent to grep -r and -uuu is roughly equivalent to grep -a
-r.
'rg -uuu' is roughly equivalent to 'grep -r'.
");
let arg = RGArg::switch("unrestricted").short("u")
.help(SHORT).long_help(LONG)
@@ -2391,7 +2535,7 @@ ripgrep is explicitly instructed to search one file or stdin.
This flag overrides --with-filename.
");
let arg = RGArg::switch("no-filename")
let arg = RGArg::switch("no-filename").short("I")
.help(NO_SHORT).long_help(NO_LONG)
.overrides("with-filename");
args.push(arg);

176
src/args.rs
View File

@@ -73,6 +73,8 @@ pub enum Command {
/// List all file type definitions configured, including the default file
/// types and any additional file types added to the command line.
Types,
/// Print the version of PCRE2 in use.
PCRE2Version,
}
impl Command {
@@ -82,7 +84,11 @@ impl Command {
match *self {
Search | SearchParallel => true,
SearchNever | Files | FilesParallel | Types => false,
| SearchNever
| Files
| FilesParallel
| Types
| PCRE2Version => false,
}
}
}
@@ -235,7 +241,9 @@ impl Args {
let threads = self.matches().threads()?;
let one_thread = is_one_search || threads == 1;
Ok(if self.matches().is_present("type-list") {
Ok(if self.matches().is_present("pcre2-version") {
Command::PCRE2Version
} else if self.matches().is_present("type-list") {
Command::Types
} else if self.matches().is_present("files") {
if one_thread {
@@ -286,15 +294,18 @@ impl Args {
&self,
wtr: W,
) -> Result<SearchWorker<W>> {
let matches = self.matches();
let matcher = self.matcher().clone();
let printer = self.printer(wtr)?;
let searcher = self.matches().searcher(self.paths())?;
let searcher = matches.searcher(self.paths())?;
let mut builder = SearchWorkerBuilder::new();
builder
.json_stats(self.matches().is_present("json"))
.preprocessor(self.matches().preprocessor())
.preprocessor_globs(self.matches().preprocessor_globs()?)
.search_zip(self.matches().is_present("search-zip"));
.json_stats(matches.is_present("json"))
.preprocessor(matches.preprocessor())
.preprocessor_globs(matches.preprocessor_globs()?)
.search_zip(matches.is_present("search-zip"))
.binary_detection_implicit(matches.binary_detection_implicit())
.binary_detection_explicit(matches.binary_detection_explicit());
Ok(builder.build(matcher, searcher, printer))
}
@@ -483,6 +494,37 @@ impl SortByKind {
}
}
/// Encoding mode the searcher will use.
#[derive(Clone, Debug)]
enum EncodingMode {
/// Use an explicit encoding forcefully, but let BOM sniffing override it.
Some(Encoding),
/// Use only BOM sniffing to auto-detect an encoding.
Auto,
/// Use no explicit encoding and disable all BOM sniffing. This will
/// always result in searching the raw bytes, regardless of their
/// true encoding.
Disabled,
}
impl EncodingMode {
/// Checks if an explicit encoding has been set. Returns false for
/// automatic BOM sniffing and no sniffing.
///
/// This is only used to determine whether PCRE2 needs to have its own
/// UTF-8 checking enabled. If we have an explicit encoding set, then
/// we're always guaranteed to get UTF-8, so we can disable PCRE2's check.
/// Otherwise, we have no such guarantee, and must enable PCRE2' UTF-8
/// check.
#[cfg(feature = "pcre2")]
fn has_explicit_encoding(&self) -> bool {
match self {
EncodingMode::Some(_) => true,
_ => false
}
}
}
impl ArgMatches {
/// Create an ArgMatches from clap's parse result.
fn new(clap_matches: clap::ArgMatches<'static>) -> ArgMatches {
@@ -557,6 +599,25 @@ impl ArgMatches {
if self.is_present("pcre2") {
let matcher = self.matcher_pcre2(patterns)?;
Ok(PatternMatcher::PCRE2(matcher))
} else if self.is_present("auto-hybrid-regex") {
let rust_err = match self.matcher_rust(patterns) {
Ok(matcher) => return Ok(PatternMatcher::RustRegex(matcher)),
Err(err) => err,
};
log::debug!(
"error building Rust regex in hybrid mode:\n{}", rust_err,
);
let pcre_err = match self.matcher_pcre2(patterns) {
Ok(matcher) => return Ok(PatternMatcher::PCRE2(matcher)),
Err(err) => err,
};
Err(From::from(format!(
"regex could not be compiled with either the default regex \
engine or with PCRE2.\n\n\
default regex engine error:\n{}\n{}\n{}\n\n\
PCRE2 regex engine error:\n{}",
"~".repeat(79), rust_err, "~".repeat(79), pcre_err,
)))
} else {
let matcher = match self.matcher_rust(patterns) {
Ok(matcher) => matcher,
@@ -625,7 +686,13 @@ impl ArgMatches {
if let Some(limit) = self.dfa_size_limit()? {
builder.dfa_size_limit(limit);
}
match builder.build(&patterns.join("|")) {
let res =
if self.is_present("fixed-strings") {
builder.build_literals(patterns)
} else {
builder.build(&patterns.join("|"))
};
match res {
Ok(m) => Ok(m),
Err(err) => Err(From::from(suggest_multiline(err.to_string()))),
}
@@ -645,12 +712,17 @@ impl ArgMatches {
.word(self.is_present("word-regexp"));
// For whatever reason, the JIT craps out during regex compilation with
// a "no more memory" error on 32 bit systems. So don't use it there.
if !cfg!(target_pointer_width = "32") {
builder.jit_if_available(true);
if cfg!(target_pointer_width = "64") {
builder
.jit_if_available(true)
// The PCRE2 docs say that 32KB is the default, and that 1MB
// should be big enough for anything. But let's crank it to
// 10MB.
.max_jit_stack_size(Some(10 * (1<<20)));
}
if self.pcre2_unicode() {
builder.utf(true).ucp(true);
if self.encoding()?.is_some() {
if self.encoding()?.has_explicit_encoding() {
// SAFETY: If an encoding was specified, then we're guaranteed
// to get valid UTF-8, so we can disable PCRE2's UTF checking.
// (Feeding invalid UTF-8 to PCRE2 is undefined behavior.)
@@ -706,6 +778,7 @@ impl ArgMatches {
.per_match(self.is_present("vimgrep"))
.replacement(self.replacement())
.max_columns(self.max_columns()?)
.max_columns_preview(self.max_columns_preview())
.max_matches(self.max_count()?)
.column(self.column())
.byte_offset(self.is_present("byte-offset"))
@@ -765,9 +838,16 @@ impl ArgMatches {
.before_context(ctx_before)
.after_context(ctx_after)
.passthru(self.is_present("passthru"))
.memory_map(self.mmap_choice(paths))
.binary_detection(self.binary_detection())
.encoding(self.encoding()?);
.memory_map(self.mmap_choice(paths));
match self.encoding()? {
EncodingMode::Some(enc) => {
builder.encoding(Some(enc));
}
EncodingMode::Auto => {} // default for the searcher
EncodingMode::Disabled => {
builder.bom_sniffing(false);
}
}
Ok(builder.build())
}
@@ -817,16 +897,39 @@ impl ArgMatches {
///
/// Methods are sorted alphabetically.
impl ArgMatches {
/// Returns the form of binary detection to perform.
fn binary_detection(&self) -> BinaryDetection {
/// Returns the form of binary detection to perform on files that are
/// implicitly searched via recursive directory traversal.
fn binary_detection_implicit(&self) -> BinaryDetection {
let none =
self.is_present("text")
|| self.is_present("null-data");
let convert =
self.is_present("binary")
|| self.unrestricted_count() >= 3;
if none {
BinaryDetection::none()
} else if convert {
BinaryDetection::convert(b'\x00')
} else {
BinaryDetection::quit(b'\x00')
}
}
/// Returns the form of binary detection to perform on files that are
/// explicitly searched via the user invoking ripgrep on a particular
/// file or files or stdin.
///
/// In general, this should never be BinaryDetection::quit, since that acts
/// as a filter (but quitting immediately once a NUL byte is seen), and we
/// should never filter out files that the user wants to explicitly search.
fn binary_detection_explicit(&self) -> BinaryDetection {
let none =
self.is_present("text")
|| self.unrestricted_count() >= 3
|| self.is_present("null-data");
if none {
BinaryDetection::none()
} else {
BinaryDetection::quit(b'\x00')
BinaryDetection::convert(b'\x00')
}
}
@@ -952,24 +1055,30 @@ impl ArgMatches {
u64_to_usize("dfa-size-limit", r)
}
/// Returns the type of encoding to use.
/// Returns the encoding mode to use.
///
/// This only returns an encoding if one is explicitly specified. When no
/// encoding is present, the Searcher will still do BOM sniffing for UTF-16
/// and transcode seamlessly.
fn encoding(&self) -> Result<Option<Encoding>> {
/// This only returns an encoding if one is explicitly specified. Otherwise
/// if set to automatic, the Searcher will do BOM sniffing for UTF-16
/// and transcode seamlessly. If disabled, no BOM sniffing nor transcoding
/// will occur.
fn encoding(&self) -> Result<EncodingMode> {
if self.is_present("no-encoding") {
return Ok(None);
return Ok(EncodingMode::Auto);
}
let label = match self.value_of_lossy("encoding") {
None if self.pcre2_unicode() => "utf-8".to_string(),
None => return Ok(None),
None => return Ok(EncodingMode::Auto),
Some(label) => label,
};
if label == "auto" {
return Ok(None);
return Ok(EncodingMode::Auto);
} else if label == "none" {
return Ok(EncodingMode::Disabled);
}
Ok(Some(Encoding::new(&label)?))
Ok(EncodingMode::Some(Encoding::new(&label)?))
}
/// Return the file separator to use based on the CLI configuration.
@@ -1066,6 +1175,12 @@ impl ArgMatches {
Ok(self.usize_of_nonzero("max-columns")?.map(|n| n as u64))
}
/// Returns true if and only if a preview should be shown for lines that
/// exceed the maximum column limit.
fn max_columns_preview(&self) -> bool {
self.is_present("max-columns-preview")
}
/// The maximum number of matches permitted.
fn max_count(&self) -> Result<Option<u64>> {
Ok(self.usize_of("max-count")?.map(|n| n as u64))
@@ -1195,7 +1310,8 @@ impl ArgMatches {
!cli::is_readable_stdin()
|| (self.is_present("file") && file_is_stdin)
|| self.is_present("files")
|| self.is_present("type-list");
|| self.is_present("type-list")
|| self.is_present("pcre2-version");
if search_cwd {
Path::new("./").to_path_buf()
} else {
@@ -1654,12 +1770,12 @@ where I: IntoIterator<Item=T>,
if err.use_stderr() {
return Err(err.into());
}
// Explicitly ignore any error returned by writeln!. The most likely error
// Explicitly ignore any error returned by write!. The most likely error
// at this point is a broken pipe error, in which case, we want to ignore
// it and exit quietly.
//
// (This is the point of this helper function. clap's functionality for
// doing this will panic on a broken pipe error.)
let _ = writeln!(io::stdout(), "{}", err);
let _ = write!(io::stdout(), "{}", err);
process::exit(0);
}

54
src/config.rs
View File

@@ -5,10 +5,11 @@
use std::env;
use std::error::Error;
use std::fs::File;
use std::io::{self, BufRead};
use std::io;
use std::ffi::OsString;
use std::path::{Path, PathBuf};
use bstr::io::BufReadExt;
use log;
use crate::Result;
@@ -76,62 +77,29 @@ fn parse<P: AsRef<Path>>(
fn parse_reader<R: io::Read>(
rdr: R,
) -> Result<(Vec<OsString>, Vec<Box<Error>>)> {
let mut bufrdr = io::BufReader::new(rdr);
let bufrdr = io::BufReader::new(rdr);
let (mut args, mut errs) = (vec![], vec![]);
let mut line = vec![];
let mut line_number = 0;
while {
line.clear();
bufrdr.for_byte_line_with_terminator(|line| {
line_number += 1;
bufrdr.read_until(b'\n', &mut line)? > 0
} {
trim(&mut line);
let line = line.trim();
if line.is_empty() || line[0] == b'#' {
continue;
return Ok(true);
}
match bytes_to_os_string(&line) {
match line.to_os_str() {
Ok(osstr) => {
args.push(osstr);
args.push(osstr.to_os_string());
}
Err(err) => {
errs.push(format!("{}: {}", line_number, err).into());
}
}
}
Ok(true)
})?;
Ok((args, errs))
}
/// Trim the given bytes of whitespace according to the ASCII definition.
fn trim(x: &mut Vec<u8>) {
let upto = x.iter().take_while(|b| is_space(**b)).count();
x.drain(..upto);
let revto = x.len() - x.iter().rev().take_while(|b| is_space(**b)).count();
x.drain(revto..);
}
/// Returns true if and only if the given byte is an ASCII space character.
fn is_space(b: u8) -> bool {
b == b'\t'
|| b == b'\n'
|| b == b'\x0B'
|| b == b'\x0C'
|| b == b'\r'
|| b == b' '
}
/// On Unix, get an OsString from raw bytes.
#[cfg(unix)]
fn bytes_to_os_string(bytes: &[u8]) -> Result<OsString> {
use std::os::unix::ffi::OsStringExt;
Ok(OsString::from_vec(bytes.to_vec()))
}
/// On non-Unix (like Windows), require UTF-8.
#[cfg(not(unix))]
fn bytes_to_os_string(bytes: &[u8]) -> Result<OsString> {
String::from_utf8(bytes.to_vec()).map(OsString::from).map_err(From::from)
}
#[cfg(test)]
mod tests {
use std::ffi::OsString;

28
src/main.rs
View File

@@ -39,6 +39,7 @@ fn try_main(args: Args) -> Result<()> {
Files => files(&args),
FilesParallel => files_parallel(&args),
Types => types(&args),
PCRE2Version => pcre2_version(&args),
}?;
if matched && (args.quiet() || !messages::errored()) {
process::exit(0)
@@ -275,3 +276,30 @@ fn types(args: &Args) -> Result<bool> {
}
Ok(count > 0)
}
/// The top-level entry point for --pcre2-version.
fn pcre2_version(args: &Args) -> Result<bool> {
#[cfg(feature = "pcre2")]
fn imp(args: &Args) -> Result<bool> {
use grep::pcre2;
let mut stdout = args.stdout();
let (major, minor) = pcre2::version();
writeln!(stdout, "PCRE2 {}.{} is available", major, minor)?;
if cfg!(target_pointer_width = "64") && pcre2::is_jit_available() {
writeln!(stdout, "JIT is available")?;
}
Ok(true)
}
#[cfg(not(feature = "pcre2"))]
fn imp(args: &Args) -> Result<bool> {
let mut stdout = args.stdout();
writeln!(stdout, "PCRE2 is not available in this build of ripgrep.")?;
Ok(false)
}
imp(args)
}

45
src/search.rs
View File

@@ -10,7 +10,7 @@ use grep::matcher::Matcher;
use grep::pcre2::{RegexMatcher as PCRE2RegexMatcher};
use grep::printer::{JSON, Standard, Summary, Stats};
use grep::regex::{RegexMatcher as RustRegexMatcher};
use grep::searcher::Searcher;
use grep::searcher::{BinaryDetection, Searcher};
use ignore::overrides::Override;
use serde_json as json;
use serde_json::json;
@@ -27,6 +27,8 @@ struct Config {
preprocessor: Option<PathBuf>,
preprocessor_globs: Override,
search_zip: bool,
binary_implicit: BinaryDetection,
binary_explicit: BinaryDetection,
}
impl Default for Config {
@@ -36,6 +38,8 @@ impl Default for Config {
preprocessor: None,
preprocessor_globs: Override::empty(),
search_zip: false,
binary_implicit: BinaryDetection::none(),
binary_explicit: BinaryDetection::none(),
}
}
}
@@ -134,6 +138,37 @@ impl SearchWorkerBuilder {
self.config.search_zip = yes;
self
}
/// Set the binary detection that should be used when searching files
/// found via a recursive directory search.
///
/// Generally, this binary detection may be `BinaryDetection::quit` if
/// we want to skip binary files completely.
///
/// By default, no binary detection is performed.
pub fn binary_detection_implicit(
&mut self,
detection: BinaryDetection,
) -> &mut SearchWorkerBuilder {
self.config.binary_implicit = detection;
self
}
/// Set the binary detection that should be used when searching files
/// explicitly supplied by an end user.
///
/// Generally, this binary detection should NOT be `BinaryDetection::quit`,
/// since we never want to automatically filter files supplied by the end
/// user.
///
/// By default, no binary detection is performed.
pub fn binary_detection_explicit(
&mut self,
detection: BinaryDetection,
) -> &mut SearchWorkerBuilder {
self.config.binary_explicit = detection;
self
}
}
/// The result of executing a search.
@@ -308,6 +343,14 @@ impl<W: WriteColor> SearchWorker<W> {
/// Search the given subject using the appropriate strategy.
fn search_impl(&mut self, subject: &Subject) -> io::Result<SearchResult> {
let bin =
if subject.is_explicit() {
self.config.binary_explicit.clone()
} else {
self.config.binary_implicit.clone()
};
self.searcher.set_binary_detection(bin);
let path = subject.path();
if subject.is_stdin() {
let stdin = io::stdin();

33
src/subject.rs
View File

@@ -59,17 +59,12 @@ impl SubjectBuilder {
if let Some(ignore_err) = subj.dent.error() {
ignore_message!("{}", ignore_err);
}
// If this entry represents stdin, then we always search it.
if subj.dent.is_stdin() {
// If this entry was explicitly provided by an end user, then we always
// want to search it.
if subj.is_explicit() {
return Some(subj);
}
// If this subject has a depth of 0, then it was provided explicitly
// by an end user (or via a shell glob). In this case, we always want
// to search it if it even smells like a file (e.g., a symlink).
if subj.dent.depth() == 0 && !subj.is_dir() {
return Some(subj);
}
// At this point, we only want to search something it's explicitly a
// At this point, we only want to search something if it's explicitly a
// file. This omits symlinks. (If ripgrep was configured to follow
// symlinks, then they have already been followed by the directory
// traversal.)
@@ -127,6 +122,26 @@ impl Subject {
self.dent.is_stdin()
}
/// Returns true if and only if this entry corresponds to a subject to
/// search that was explicitly supplied by an end user.
///
/// Generally, this corresponds to either stdin or an explicit file path
/// argument. e.g., in `rg foo some-file ./some-dir/`, `some-file` is
/// an explicit subject, but, e.g., `./some-dir/some-other-file` is not.
///
/// However, note that ripgrep does not see through shell globbing. e.g.,
/// in `rg foo ./some-dir/*`, `./some-dir/some-other-file` will be treated
/// as an explicit subject.
pub fn is_explicit(&self) -> bool {
// stdin is obvious. When an entry has a depth of 0, that means it
// was explicitly provided to our directory iterator, which means it
// was in turn explicitly provided by the end user. The !is_dir check
// means that we want to search files even if their symlinks, again,
// because they were explicitly provided. (And we never want to try
// to search a directory.)
self.is_stdin() || (self.dent.depth() == 0 && !self.is_dir())
}
/// Returns true if and only if this subject points to a directory after
/// following symbolic links.
fn is_dir(&self) -> bool {

315
tests/binary.rs Normal file
View File

@@ -0,0 +1,315 @@
use crate::util::{Dir, TestCommand};
// This file contains a smattering of tests specifically for checking ripgrep's
// handling of binary files. There's quite a bit of discussion on this in this
// bug report: https://github.com/BurntSushi/ripgrep/issues/306
// Our haystack is the first 500 lines of Gutenberg's copy of "A Study in
// Scarlet," with a NUL byte at line 237: `abcdef\x00`.
//
// The position and size of the haystack is, unfortunately, significant. In
// particular, the NUL byte is specifically inserted at some point *after* the
// first 8192 bytes, which corresponds to the initial capacity of the buffer
// that ripgrep uses to read files. (grep for DEFAULT_BUFFER_CAPACITY.) The
// position of the NUL byte ensures that we can execute some search on the
// initial buffer contents without ever detecting any binary data. Moreover,
// when using a memory map for searching, only the first 8192 bytes are
// scanned for a NUL byte, so no binary bytes are detected at all when using
// a memory map (unless our query matches line 237).
//
// One last note: in the tests below, we use --no-mmap heavily because binary
// detection with memory maps is a bit different. Namely, NUL bytes are only
// searched for in the first few KB of the file and in a match. Normally, NUL
// bytes are searched for everywhere.
//
// TODO: Add tests for binary file detection when using memory maps.
const HAY: &'static [u8] = include_bytes!("./data/sherlock-nul.txt");
// This tests that ripgrep prints a warning message if it finds and prints a
// match in a binary file before detecting that it is a binary file. The point
// here is to notify that user that the search of the file is only partially
// complete.
//
// This applies to files that are *implicitly* searched via a recursive
// directory traversal. In particular, this results in a WARNING message being
// printed. We make our file "implicit" by doing a recursive search with a glob
// that matches our file.
rgtest!(after_match1_implicit, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "Project Gutenberg EBook", "-g", "hay",
]);
let expected = "\
hay:1:The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
WARNING: stopped searching binary file hay after match (found \"\\u{0}\" byte around offset 9741)
";
eqnice!(expected, cmd.stdout());
});
// Like after_match1_implicit, except we provide a file to search
// explicitly. This results in identical behavior, but a different message.
rgtest!(after_match1_explicit, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "Project Gutenberg EBook", "hay",
]);
let expected = "\
1:The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
Binary file matches (found \"\\u{0}\" byte around offset 9741)
";
eqnice!(expected, cmd.stdout());
});
// Like after_match1_explicit, except we feed our content on stdin.
rgtest!(after_match1_stdin, |_: Dir, mut cmd: TestCommand| {
cmd.args(&[
"--no-mmap", "-n", "Project Gutenberg EBook",
]);
let expected = "\
1:The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
Binary file matches (found \"\\u{0}\" byte around offset 9741)
";
eqnice!(expected, cmd.pipe(HAY));
});
// Like after_match1_implicit, but provides the --binary flag, which
// disables binary filtering. Thus, this matches the behavior of ripgrep as
// if the file were given explicitly.
rgtest!(after_match1_implicit_binary, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "--binary", "Project Gutenberg EBook", "-g", "hay",
]);
let expected = "\
hay:1:The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
Binary file hay matches (found \"\\u{0}\" byte around offset 9741)
";
eqnice!(expected, cmd.stdout());
});
// Like after_match1_implicit, but enables -a/--text, so no binary
// detection should be performed.
rgtest!(after_match1_implicit_text, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "--text", "Project Gutenberg EBook", "-g", "hay",
]);
let expected = "\
hay:1:The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
";
eqnice!(expected, cmd.stdout());
});
// Like after_match1_implicit_text, but enables -a/--text, so no binary
// detection should be performed.
rgtest!(after_match1_explicit_text, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "--text", "Project Gutenberg EBook", "hay",
]);
let expected = "\
1:The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
";
eqnice!(expected, cmd.stdout());
});
// Like after_match1_implicit, except this asks ripgrep to print all matching
// files.
//
// This is an interesting corner case that one might consider a bug, however,
// it's unlikely to be fixed. Namely, ripgrep probably shouldn't print `hay`
// as a matching file since it is in fact a binary file, and thus should be
// filtered out by default. However, the --files-with-matches flag will print
// out the path of a matching file as soon as a match is seen and then stop
// searching completely. Therefore, the NUL byte is never actually detected.
//
// The only way to fix this would be to kill ripgrep's performance in this case
// and continue searching the entire file for a NUL byte. (Similarly if the
// --quiet flag is set. See the next test.)
rgtest!(after_match1_implicit_path, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-l", "Project Gutenberg EBook", "-g", "hay",
]);
eqnice!("hay\n", cmd.stdout());
});
// Like after_match1_implicit_path, except this indicates that a match was
// found with no other output. (This is the same bug described above, but
// manifest as an exit code with no output.)
rgtest!(after_match1_implicit_quiet, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-q", "Project Gutenberg EBook", "-g", "hay",
]);
eqnice!("", cmd.stdout());
});
// This sets up the same test as after_match1_implicit_path, but instead of
// just printing the matching files, this includes the full count of matches.
// In this case, we need to search the entire file, so ripgrep correctly
// detects the binary data and suppresses output.
rgtest!(after_match1_implicit_count, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-c", "Project Gutenberg EBook", "-g", "hay",
]);
cmd.assert_err();
});
// Like after_match1_implicit_count, except the --binary flag is provided,
// which makes ripgrep disable binary data filtering even for implicit files.
rgtest!(after_match1_implicit_count_binary, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-c", "--binary",
"Project Gutenberg EBook",
"-g", "hay",
]);
eqnice!("hay:1\n", cmd.stdout());
});
// Like after_match1_implicit_count, except the file path is provided
// explicitly, so binary filtering is disabled and a count is correctly
// reported.
rgtest!(after_match1_explicit_count, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-c", "Project Gutenberg EBook", "hay",
]);
eqnice!("1\n", cmd.stdout());
});
// This tests that a match way before the NUL byte is shown, but a match after
// the NUL byte is not.
rgtest!(after_match2_implicit, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n",
"Project Gutenberg EBook|a medical student",
"-g", "hay",
]);
let expected = "\
hay:1:The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
WARNING: stopped searching binary file hay after match (found \"\\u{0}\" byte around offset 9741)
";
eqnice!(expected, cmd.stdout());
});
// Like after_match2_implicit, but enables -a/--text, so no binary
// detection should be performed.
rgtest!(after_match2_implicit_text, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "--text",
"Project Gutenberg EBook|a medical student",
"-g", "hay",
]);
let expected = "\
hay:1:The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
hay:236:\"And yet you say he is not a medical student?\"
";
eqnice!(expected, cmd.stdout());
});
// This tests that ripgrep *silently* quits before finding a match that occurs
// after a NUL byte.
rgtest!(before_match1_implicit, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "Heaven", "-g", "hay",
]);
cmd.assert_err();
});
// This tests that ripgrep *does not* silently quit before finding a match that
// occurs after a NUL byte when a file is explicitly searched.
rgtest!(before_match1_explicit, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "Heaven", "hay",
]);
let expected = "\
Binary file matches (found \"\\u{0}\" byte around offset 9741)
";
eqnice!(expected, cmd.stdout());
});
// Like before_match1_implicit, but enables the --binary flag, which
// disables binary filtering. Thus, this matches the behavior of ripgrep as if
// the file were given explicitly.
rgtest!(before_match1_implicit_binary, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "--binary", "Heaven", "-g", "hay",
]);
let expected = "\
Binary file hay matches (found \"\\u{0}\" byte around offset 9741)
";
eqnice!(expected, cmd.stdout());
});
// Like before_match1_implicit, but enables -a/--text, so no binary
// detection should be performed.
rgtest!(before_match1_implicit_text, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "--text", "Heaven", "-g", "hay",
]);
let expected = "\
hay:238:\"No. Heaven knows what the objects of his studies are. But here we
";
eqnice!(expected, cmd.stdout());
});
// This tests that ripgrep *silently* quits before finding a match that occurs
// before a NUL byte, but within the same buffer as the NUL byte.
rgtest!(before_match2_implicit, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "a medical student", "-g", "hay",
]);
cmd.assert_err();
});
// This tests that ripgrep *does not* silently quit before finding a match that
// occurs before a NUL byte, but within the same buffer as the NUL byte. Even
// though the match occurs before the NUL byte, ripgrep still doesn't print it
// because it has already scanned ahead to detect the NUL byte. (This matches
// the behavior of GNU grep.)
rgtest!(before_match2_explicit, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "a medical student", "hay",
]);
let expected = "\
Binary file matches (found \"\\u{0}\" byte around offset 9741)
";
eqnice!(expected, cmd.stdout());
});
// Like before_match1_implicit, but enables -a/--text, so no binary
// detection should be performed.
rgtest!(before_match2_implicit_text, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes("hay", HAY);
cmd.args(&[
"--no-mmap", "-n", "--text", "a medical student", "-g", "hay",
]);
let expected = "\
hay:236:\"And yet you say he is not a medical student?\"
";
eqnice!(expected, cmd.stdout());
});

500
tests/data/sherlock-nul.txt Normal file
View File

@@ -0,0 +1,500 @@
The Project Gutenberg EBook of A Study In Scarlet, by Arthur Conan Doyle
This eBook is for the use of anyone anywhere at no cost and with
almost no restrictions whatsoever. You may copy it, give it away or
re-use it under the terms of the Project Gutenberg License included
with this eBook or online at www.gutenberg.org
Title: A Study In Scarlet
Author: Arthur Conan Doyle
Posting Date: July 12, 2008 [EBook #244]
Release Date: April, 1995
[Last updated: February 17, 2013]
Language: English
*** START OF THIS PROJECT GUTENBERG EBOOK A STUDY IN SCARLET ***
Produced by Roger Squires
A STUDY IN SCARLET.
By A. Conan Doyle
[1]
Original Transcriber's Note: This etext is prepared directly
from an 1887 edition, and care has been taken to duplicate the
original exactly, including typographical and punctuation
vagaries.
Additions to the text include adding the underscore character to
indicate italics, and textual end-notes in square braces.
Project Gutenberg Editor's Note: In reproofing and moving old PG
files such as this to the present PG directory system it is the
policy to reformat the text to conform to present PG Standards.
In this case however, in consideration of the note above of the
original transcriber describing his care to try to duplicate the
original 1887 edition as to typography and punctuation vagaries,
no changes have been made in this ascii text file. However, in
the Latin-1 file and this html file, present standards are
followed and the several French and Spanish words have been
given their proper accents.
Part II, The Country of the Saints, deals much with the Mormon Church.
A STUDY IN SCARLET.
PART I.
(_Being a reprint from the reminiscences of_ JOHN H. WATSON, M.D., _late
of the Army Medical Department._) [2]
CHAPTER I. MR. SHERLOCK HOLMES.
IN the year 1878 I took my degree of Doctor of Medicine of the
University of London, and proceeded to Netley to go through the course
prescribed for surgeons in the army. Having completed my studies there,
I was duly attached to the Fifth Northumberland Fusiliers as Assistant
Surgeon. The regiment was stationed in India at the time, and before
I could join it, the second Afghan war had broken out. On landing at
Bombay, I learned that my corps had advanced through the passes, and
was already deep in the enemy's country. I followed, however, with many
other officers who were in the same situation as myself, and succeeded
in reaching Candahar in safety, where I found my regiment, and at once
entered upon my new duties.
The campaign brought honours and promotion to many, but for me it had
nothing but misfortune and disaster. I was removed from my brigade and
attached to the Berkshires, with whom I served at the fatal battle of
Maiwand. There I was struck on the shoulder by a Jezail bullet, which
shattered the bone and grazed the subclavian artery. I should have
fallen into the hands of the murderous Ghazis had it not been for the
devotion and courage shown by Murray, my orderly, who threw me across a
pack-horse, and succeeded in bringing me safely to the British lines.
Worn with pain, and weak from the prolonged hardships which I had
undergone, I was removed, with a great train of wounded sufferers, to
the base hospital at Peshawar. Here I rallied, and had already improved
so far as to be able to walk about the wards, and even to bask a little
upon the verandah, when I was struck down by enteric fever, that curse
of our Indian possessions. For months my life was despaired of, and
when at last I came to myself and became convalescent, I was so weak and
emaciated that a medical board determined that not a day should be lost
in sending me back to England. I was dispatched, accordingly, in the
troopship "Orontes," and landed a month later on Portsmouth jetty, with
my health irretrievably ruined, but with permission from a paternal
government to spend the next nine months in attempting to improve it.
I had neither kith nor kin in England, and was therefore as free as
air--or as free as an income of eleven shillings and sixpence a day will
permit a man to be. Under such circumstances, I naturally gravitated to
London, that great cesspool into which all the loungers and idlers of
the Empire are irresistibly drained. There I stayed for some time at
a private hotel in the Strand, leading a comfortless, meaningless
existence, and spending such money as I had, considerably more freely
than I ought. So alarming did the state of my finances become, that
I soon realized that I must either leave the metropolis and rusticate
somewhere in the country, or that I must make a complete alteration in
my style of living. Choosing the latter alternative, I began by making
up my mind to leave the hotel, and to take up my quarters in some less
pretentious and less expensive domicile.
On the very day that I had come to this conclusion, I was standing at
the Criterion Bar, when some one tapped me on the shoulder, and turning
round I recognized young Stamford, who had been a dresser under me at
Barts. The sight of a friendly face in the great wilderness of London is
a pleasant thing indeed to a lonely man. In old days Stamford had never
been a particular crony of mine, but now I hailed him with enthusiasm,
and he, in his turn, appeared to be delighted to see me. In the
exuberance of my joy, I asked him to lunch with me at the Holborn, and
we started off together in a hansom.
"Whatever have you been doing with yourself, Watson?" he asked in
undisguised wonder, as we rattled through the crowded London streets.
"You are as thin as a lath and as brown as a nut."
I gave him a short sketch of my adventures, and had hardly concluded it
by the time that we reached our destination.
"Poor devil!" he said, commiseratingly, after he had listened to my
misfortunes. "What are you up to now?"
"Looking for lodgings." [3] I answered. "Trying to solve the problem
as to whether it is possible to get comfortable rooms at a reasonable
price."
"That's a strange thing," remarked my companion; "you are the second man
to-day that has used that expression to me."
"And who was the first?" I asked.
"A fellow who is working at the chemical laboratory up at the hospital.
He was bemoaning himself this morning because he could not get someone
to go halves with him in some nice rooms which he had found, and which
were too much for his purse."
"By Jove!" I cried, "if he really wants someone to share the rooms and
the expense, I am the very man for him. I should prefer having a partner
to being alone."
Young Stamford looked rather strangely at me over his wine-glass. "You
don't know Sherlock Holmes yet," he said; "perhaps you would not care
for him as a constant companion."
"Why, what is there against him?"
"Oh, I didn't say there was anything against him. He is a little queer
in his ideas--an enthusiast in some branches of science. As far as I
know he is a decent fellow enough."
"A medical student, I suppose?" said I.
"No--I have no idea what he intends to go in for. I believe he is well
up in anatomy, and he is a first-class chemist; but, as far as I know,
he has never taken out any systematic medical classes. His studies are
very desultory and eccentric, but he has amassed a lot of out-of-the way
knowledge which would astonish his professors."
"Did you never ask him what he was going in for?" I asked.
"No; he is not a man that it is easy to draw out, though he can be
communicative enough when the fancy seizes him."
"I should like to meet him," I said. "If I am to lodge with anyone, I
should prefer a man of studious and quiet habits. I am not strong
enough yet to stand much noise or excitement. I had enough of both in
Afghanistan to last me for the remainder of my natural existence. How
could I meet this friend of yours?"
"He is sure to be at the laboratory," returned my companion. "He either
avoids the place for weeks, or else he works there from morning to
night. If you like, we shall drive round together after luncheon."
"Certainly," I answered, and the conversation drifted away into other
channels.
As we made our way to the hospital after leaving the Holborn, Stamford
gave me a few more particulars about the gentleman whom I proposed to
take as a fellow-lodger.
"You mustn't blame me if you don't get on with him," he said; "I know
nothing more of him than I have learned from meeting him occasionally in
the laboratory. You proposed this arrangement, so you must not hold me
responsible."
"If we don't get on it will be easy to part company," I answered. "It
seems to me, Stamford," I added, looking hard at my companion, "that you
have some reason for washing your hands of the matter. Is this fellow's
temper so formidable, or what is it? Don't be mealy-mouthed about it."
"It is not easy to express the inexpressible," he answered with a laugh.
"Holmes is a little too scientific for my tastes--it approaches to
cold-bloodedness. I could imagine his giving a friend a little pinch of
the latest vegetable alkaloid, not out of malevolence, you understand,
but simply out of a spirit of inquiry in order to have an accurate idea
of the effects. To do him justice, I think that he would take it himself
with the same readiness. He appears to have a passion for definite and
exact knowledge."
"Very right too."
"Yes, but it may be pushed to excess. When it comes to beating the
subjects in the dissecting-rooms with a stick, it is certainly taking
rather a bizarre shape."
"Beating the subjects!"
"Yes, to verify how far bruises may be produced after death. I saw him
at it with my own eyes."
"And yet you say he is not a medical student?"
abcdef
"No. Heaven knows what the objects of his studies are. But here we
are, and you must form your own impressions about him." As he spoke, we
turned down a narrow lane and passed through a small side-door, which
opened into a wing of the great hospital. It was familiar ground to me,
and I needed no guiding as we ascended the bleak stone staircase and
made our way down the long corridor with its vista of whitewashed
wall and dun-coloured doors. Near the further end a low arched passage
branched away from it and led to the chemical laboratory.
This was a lofty chamber, lined and littered with countless bottles.
Broad, low tables were scattered about, which bristled with retorts,
test-tubes, and little Bunsen lamps, with their blue flickering flames.
There was only one student in the room, who was bending over a distant
table absorbed in his work. At the sound of our steps he glanced round
and sprang to his feet with a cry of pleasure. "I've found it! I've
found it," he shouted to my companion, running towards us with a
test-tube in his hand. "I have found a re-agent which is precipitated
by hoemoglobin, [4] and by nothing else." Had he discovered a gold mine,
greater delight could not have shone upon his features.
"Dr. Watson, Mr. Sherlock Holmes," said Stamford, introducing us.
"How are you?" he said cordially, gripping my hand with a strength
for which I should hardly have given him credit. "You have been in
Afghanistan, I perceive."
"How on earth did you know that?" I asked in astonishment.
"Never mind," said he, chuckling to himself. "The question now is about
hoemoglobin. No doubt you see the significance of this discovery of
mine?"
"It is interesting, chemically, no doubt," I answered, "but
practically----"
"Why, man, it is the most practical medico-legal discovery for years.
Don't you see that it gives us an infallible test for blood stains. Come
over here now!" He seized me by the coat-sleeve in his eagerness, and
drew me over to the table at which he had been working. "Let us have
some fresh blood," he said, digging a long bodkin into his finger, and
drawing off the resulting drop of blood in a chemical pipette. "Now, I
add this small quantity of blood to a litre of water. You perceive that
the resulting mixture has the appearance of pure water. The proportion
of blood cannot be more than one in a million. I have no doubt, however,
that we shall be able to obtain the characteristic reaction." As he
spoke, he threw into the vessel a few white crystals, and then added
some drops of a transparent fluid. In an instant the contents assumed a
dull mahogany colour, and a brownish dust was precipitated to the bottom
of the glass jar.
"Ha! ha!" he cried, clapping his hands, and looking as delighted as a
child with a new toy. "What do you think of that?"
"It seems to be a very delicate test," I remarked.
"Beautiful! beautiful! The old Guiacum test was very clumsy and
uncertain. So is the microscopic examination for blood corpuscles. The
latter is valueless if the stains are a few hours old. Now, this appears
to act as well whether the blood is old or new. Had this test been
invented, there are hundreds of men now walking the earth who would long
ago have paid the penalty of their crimes."
"Indeed!" I murmured.
"Criminal cases are continually hinging upon that one point. A man is
suspected of a crime months perhaps after it has been committed. His
linen or clothes are examined, and brownish stains discovered upon them.
Are they blood stains, or mud stains, or rust stains, or fruit stains,
or what are they? That is a question which has puzzled many an expert,
and why? Because there was no reliable test. Now we have the Sherlock
Holmes' test, and there will no longer be any difficulty."
His eyes fairly glittered as he spoke, and he put his hand over his
heart and bowed as if to some applauding crowd conjured up by his
imagination.
"You are to be congratulated," I remarked, considerably surprised at his
enthusiasm.
"There was the case of Von Bischoff at Frankfort last year. He would
certainly have been hung had this test been in existence. Then there was
Mason of Bradford, and the notorious Muller, and Lefevre of Montpellier,
and Samson of New Orleans. I could name a score of cases in which it
would have been decisive."
"You seem to be a walking calendar of crime," said Stamford with a
laugh. "You might start a paper on those lines. Call it the 'Police News
of the Past.'"
"Very interesting reading it might be made, too," remarked Sherlock
Holmes, sticking a small piece of plaster over the prick on his finger.
"I have to be careful," he continued, turning to me with a smile, "for I
dabble with poisons a good deal." He held out his hand as he spoke, and
I noticed that it was all mottled over with similar pieces of plaster,
and discoloured with strong acids.
"We came here on business," said Stamford, sitting down on a high
three-legged stool, and pushing another one in my direction with
his foot. "My friend here wants to take diggings, and as you were
complaining that you could get no one to go halves with you, I thought
that I had better bring you together."
Sherlock Holmes seemed delighted at the idea of sharing his rooms with
me. "I have my eye on a suite in Baker Street," he said, "which would
suit us down to the ground. You don't mind the smell of strong tobacco,
I hope?"
"I always smoke 'ship's' myself," I answered.
"That's good enough. I generally have chemicals about, and occasionally
do experiments. Would that annoy you?"
"By no means."
"Let me see--what are my other shortcomings. I get in the dumps at
times, and don't open my mouth for days on end. You must not think I am
sulky when I do that. Just let me alone, and I'll soon be right. What
have you to confess now? It's just as well for two fellows to know the
worst of one another before they begin to live together."
I laughed at this cross-examination. "I keep a bull pup," I said, "and
I object to rows because my nerves are shaken, and I get up at all sorts
of ungodly hours, and I am extremely lazy. I have another set of vices
when I'm well, but those are the principal ones at present."
"Do you include violin-playing in your category of rows?" he asked,
anxiously.
"It depends on the player," I answered. "A well-played violin is a treat
for the gods--a badly-played one----"
"Oh, that's all right," he cried, with a merry laugh. "I think we may
consider the thing as settled--that is, if the rooms are agreeable to
you."
"When shall we see them?"
"Call for me here at noon to-morrow, and we'll go together and settle
everything," he answered.
"All right--noon exactly," said I, shaking his hand.
We left him working among his chemicals, and we walked together towards
my hotel.
"By the way," I asked suddenly, stopping and turning upon Stamford, "how
the deuce did he know that I had come from Afghanistan?"
My companion smiled an enigmatical smile. "That's just his little
peculiarity," he said. "A good many people have wanted to know how he
finds things out."
"Oh! a mystery is it?" I cried, rubbing my hands. "This is very piquant.
I am much obliged to you for bringing us together. 'The proper study of
mankind is man,' you know."
"You must study him, then," Stamford said, as he bade me good-bye.
"You'll find him a knotty problem, though. I'll wager he learns more
about you than you about him. Good-bye."
"Good-bye," I answered, and strolled on to my hotel, considerably
interested in my new acquaintance.
CHAPTER II. THE SCIENCE OF DEDUCTION.
WE met next day as he had arranged, and inspected the rooms at No. 221B,
[5] Baker Street, of which he had spoken at our meeting. They
consisted of a couple of comfortable bed-rooms and a single large
airy sitting-room, cheerfully furnished, and illuminated by two broad
windows. So desirable in every way were the apartments, and so moderate
did the terms seem when divided between us, that the bargain was
concluded upon the spot, and we at once entered into possession.
That very evening I moved my things round from the hotel, and on the
following morning Sherlock Holmes followed me with several boxes and
portmanteaus. For a day or two we were busily employed in unpacking and
laying out our property to the best advantage. That done, we
gradually began to settle down and to accommodate ourselves to our new
surroundings.
Holmes was certainly not a difficult man to live with. He was quiet
in his ways, and his habits were regular. It was rare for him to be
up after ten at night, and he had invariably breakfasted and gone out
before I rose in the morning. Sometimes he spent his day at the chemical
laboratory, sometimes in the dissecting-rooms, and occasionally in long
walks, which appeared to take him into the lowest portions of the City.
Nothing could exceed his energy when the working fit was upon him; but
now and again a reaction would seize him, and for days on end he would
lie upon the sofa in the sitting-room, hardly uttering a word or moving
a muscle from morning to night. On these occasions I have noticed such
a dreamy, vacant expression in his eyes, that I might have suspected him
of being addicted to the use of some narcotic, had not the temperance
and cleanliness of his whole life forbidden such a notion.
As the weeks went by, my interest in him and my curiosity as to his
aims in life, gradually deepened and increased. His very person and
appearance were such as to strike the attention of the most casual
observer. In height he was rather over six feet, and so excessively
lean that he seemed to be considerably taller. His eyes were sharp and
piercing, save during those intervals of torpor to which I have alluded;
and his thin, hawk-like nose gave his whole expression an air of
alertness and decision. His chin, too, had the prominence and squareness
which mark the man of determination. His hands were invariably
blotted with ink and stained with chemicals, yet he was possessed of
extraordinary delicacy of touch, as I frequently had occasion to observe
when I watched him manipulating his fragile philosophical instruments.
The reader may set me down as a hopeless busybody, when I confess how
much this man stimulated my curiosity, and how often I endeavoured
to break through the reticence which he showed on all that concerned
himself. Before pronouncing judgment, however, be it remembered, how
objectless was my life, and how little there was to engage my attention.
My health forbade me from venturing out unless the weather was
exceptionally genial, and I had no friends who would call upon me and
break the monotony of my daily existence. Under these circumstances, I
eagerly hailed the little mystery which hung around my companion, and
spent much of my time in endeavouring to unravel it.
He was not studying medicine. He had himself, in reply to a question,
confirmed Stamford's opinion upon that point. Neither did he appear to
have pursued any course of reading which might fit him for a degree in
science or any other recognized portal which would give him an entrance
into the learned world. Yet his zeal for certain studies was remarkable,
and within eccentric limits his knowledge was so extraordinarily ample
and minute that his observations have fairly astounded me. Surely no man
would work so hard or attain such precise information unless he had some
definite end in view. Desultory readers are seldom remarkable for the
exactness of their learning. No man burdens his mind with small matters
unless he has some very good reason for doing so.
His ignorance was as remarkable as his knowledge. Of contemporary
literature, philosophy and politics he appeared to know next to nothing.
Upon my quoting Thomas Carlyle, he inquired in the naivest way who he
might be and what he had done. My surprise reached a climax, however,
when I found incidentally that he was ignorant of the Copernican Theory
and of the composition of the Solar System. That any civilized human
being in this nineteenth century should not be aware that the earth
travelled round the sun appeared to be to me such an extraordinary fact
that I could hardly realize it.
"You appear to be astonished," he said, smiling at my expression of
surprise. "Now that I do know it I shall do my best to forget it."
"To forget it!"
"You see," he explained, "I consider that a man's brain originally is
like a little empty attic, and you have to stock it with such furniture
as you choose. A fool takes in all the lumber of every sort that he
comes across, so that the knowledge which might be useful to him gets
crowded out, or at best is jumbled up with a lot of other things so that
he has a difficulty in laying his hands upon it. Now the skilful workman
is very careful indeed as to what he takes into his brain-attic. He will
have nothing but the tools which may help him in doing his work, but of
these he has a large assortment, and all in the most perfect order. It
is a mistake to think that that little room has elastic walls and can
distend to any extent. Depend upon it there comes a time when for every
addition of knowledge you forget something that you knew before. It is
of the highest importance, therefore, not to have useless facts elbowing
out the useful ones."

84
tests/feature.rs
View File

@@ -72,7 +72,7 @@ rgtest!(f7_stdin, |dir: Dir, mut cmd: TestCommand| {
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
eqnice!(expected, cmd.arg("-f-").pipe("Sherlock"));
eqnice!(expected, cmd.arg("-f-").pipe(b"Sherlock"));
});
// See: https://github.com/BurntSushi/ripgrep/issues/20
@@ -630,6 +630,41 @@ rgtest!(f993_null_data, |dir: Dir, mut cmd: TestCommand| {
eqnice!(expected, cmd.stdout());
});
// See: https://github.com/BurntSushi/ripgrep/issues/1078
//
// N.B. There are many more tests in the grep-printer crate.
rgtest!(f1078_max_columns_preview1, |dir: Dir, mut cmd: TestCommand| {
dir.create("sherlock", SHERLOCK);
cmd.args(&[
"-M46", "--max-columns-preview",
"exhibited|dusted|has to have it",
]);
let expected = "\
sherlock:but Doctor Watson has to have it taken out for [... omitted end of long line]
sherlock:and exhibited clearly, with a label attached.
";
eqnice!(expected, cmd.stdout());
});
rgtest!(f1078_max_columns_preview2, |dir: Dir, mut cmd: TestCommand| {
dir.create("sherlock", SHERLOCK);
cmd.args(&[
"-M43", "--max-columns-preview",
// Doing a replacement forces ripgrep to show the number of remaining
// matches. Normally, this happens by default when printing a tty with
// colors.
"-rxxx",
"exhibited|dusted|has to have it",
]);
let expected = "\
sherlock:but Doctor Watson xxx taken out for him and [... 1 more match]
sherlock:and xxx clearly, with a label attached.
";
eqnice!(expected, cmd.stdout());
});
// See: https://github.com/BurntSushi/ripgrep/issues/1138
rgtest!(f1138_no_ignore_dot, |dir: Dir, mut cmd: TestCommand| {
dir.create_dir(".git");
@@ -645,3 +680,50 @@ rgtest!(f1138_no_ignore_dot, |dir: Dir, mut cmd: TestCommand| {
eqnice!("bar\nquux\n", cmd.arg("--no-ignore-dot").stdout());
eqnice!("bar\n", cmd.arg("--ignore-file").arg(".fzf-ignore").stdout());
});
// See: https://github.com/BurntSushi/ripgrep/issues/1155
rgtest!(f1155_auto_hybrid_regex, |dir: Dir, mut cmd: TestCommand| {
// No sense in testing a hybrid regex engine with only one engine!
if !dir.is_pcre2() {
return;
}
dir.create("sherlock", SHERLOCK);
cmd.arg("--no-pcre2").arg("--auto-hybrid-regex").arg(r"(?<=the )Sherlock");
let expected = "\
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
";
eqnice!(expected, cmd.stdout());
});
// See: https://github.com/BurntSushi/ripgrep/issues/1207
//
// Tests if without encoding 'none' flag null bytes are consumed by automatic
// encoding detection.
rgtest!(f1207_auto_encoding, |dir: Dir, mut cmd: TestCommand| {
dir.create_bytes(
"foo",
b"\xFF\xFE\x00\x62"
);
cmd.arg("-a").arg("\\x00").arg("foo");
cmd.assert_exit_code(1);
});
// See: https://github.com/BurntSushi/ripgrep/issues/1207
//
// Tests if encoding 'none' flag does treat file as raw bytes
rgtest!(f1207_ignore_encoding, |dir: Dir, mut cmd: TestCommand| {
// PCRE2 chokes on this test because it can't search invalid non-UTF-8
// and the point of this test is to search raw UTF-16.
if dir.is_pcre2() {
return;
}
dir.create_bytes(
"foo",
b"\xFF\xFE\x00\x62"
);
cmd.arg("--encoding").arg("none").arg("-a").arg("\\x00").arg("foo");
eqnice!("\u{FFFD}\u{FFFD}\x00b\n", cmd.stdout());
});

34
tests/misc.rs
View File

@@ -752,12 +752,11 @@ rgtest!(unrestricted2, |dir: Dir, mut cmd: TestCommand| {
rgtest!(unrestricted3, |dir: Dir, mut cmd: TestCommand| {
dir.create("sherlock", SHERLOCK);
dir.create("file", "foo\x00bar\nfoo\x00baz\n");
dir.create("hay", "foo\x00bar\nfoo\x00baz\n");
cmd.arg("-uuu").arg("foo");
let expected = "\
file:foo\x00bar
file:foo\x00baz
Binary file hay matches (found \"\\u{0}\" byte around offset 3)
";
eqnice!(expected, cmd.stdout());
});
@@ -950,10 +949,35 @@ rgtest!(compressed_failing_gzip, |dir: Dir, mut cmd: TestCommand| {
cmd.assert_non_empty_stderr();
});
rgtest!(binary_nosearch, |dir: Dir, mut cmd: TestCommand| {
rgtest!(binary_convert, |dir: Dir, mut cmd: TestCommand| {
dir.create("file", "foo\x00bar\nfoo\x00baz\n");
cmd.arg("foo").arg("file");
cmd.arg("--no-mmap").arg("foo").arg("file");
let expected = "\
Binary file matches (found \"\\u{0}\" byte around offset 3)
";
eqnice!(expected, cmd.stdout());
});
rgtest!(binary_convert_mmap, |dir: Dir, mut cmd: TestCommand| {
dir.create("file", "foo\x00bar\nfoo\x00baz\n");
cmd.arg("--mmap").arg("foo").arg("file");
let expected = "\
Binary file matches (found \"\\u{0}\" byte around offset 3)
";
eqnice!(expected, cmd.stdout());
});
rgtest!(binary_quit, |dir: Dir, mut cmd: TestCommand| {
dir.create("file", "foo\x00bar\nfoo\x00baz\n");
cmd.arg("--no-mmap").arg("foo").arg("-gfile");
cmd.assert_err();
});
rgtest!(binary_quit_mmap, |dir: Dir, mut cmd: TestCommand| {
dir.create("file", "foo\x00bar\nfoo\x00baz\n");
cmd.arg("--mmap").arg("foo").arg("-gfile");
cmd.assert_err();
});

2
tests/multiline.rs
View File

@@ -88,7 +88,7 @@ rgtest!(stdin, |_: Dir, mut cmd: TestCommand| {
1:For the Doctor Watsons of this world, as opposed to the Sherlock
2:Holmeses, success in the province of detective work must always
";
eqnice!(expected, cmd.pipe(SHERLOCK));
eqnice!(expected, cmd.pipe(SHERLOCK.as_bytes()));
});
// Test that multiline search and contextual matches work.

11
tests/regression.rs
View File

@@ -694,3 +694,14 @@ rgtest!(r1176_line_regex, |dir: Dir, mut cmd: TestCommand| {
cmd.arg("-x").arg("-f").arg("patterns").arg("test").stdout()
);
});
// See: https://github.com/BurntSushi/ripgrep/issues/1203
rgtest!(r1203_reverse_suffix_literal, |dir: Dir, _: TestCommand| {
dir.create("test", "153.230000\n");
let mut cmd = dir.command();
eqnice!("153.230000\n", cmd.arg(r"\d\d\d00").arg("test").stdout());
let mut cmd = dir.command();
eqnice!("153.230000\n", cmd.arg(r"\d\d\d000").arg("test").stdout());
});

2
tests/tests.rs
View File

@@ -7,6 +7,8 @@ mod hay;
// Utilities for making tests nicer to read and easier to write.
mod util;
// Tests for ripgrep's handling of binary files.
mod binary;
// Tests related to most features in ripgrep. If you're adding something new
// to ripgrep, tests should probably go in here.
mod feature;

4
tests/util.rs
View File

@@ -297,7 +297,7 @@ impl TestCommand {
}
/// Pipe `input` to a command, and collect the output.
pub fn pipe(&mut self, input: &str) -> String {
pub fn pipe(&mut self, input: &[u8]) -> String {
self.cmd.stdin(process::Stdio::piped());
self.cmd.stdout(process::Stdio::piped());
self.cmd.stderr(process::Stdio::piped());
@@ -309,7 +309,7 @@ impl TestCommand {
let mut stdin = child.stdin.take().expect("expected standard input");
let input = input.to_owned();
let worker = thread::spawn(move || {
write!(stdin, "{}", input)
stdin.write_all(&input)
});
let output = self.expect_success(child.wait_with_output().unwrap());