Add -x/--line-regexp (#520)

add -x/--line-regexp flag

doc/convert-to-man

@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/sh -e
 
 pandoc -s -t man rg.1.md -o rg.1
-sed -i 's/\.TH.*/.TH "rg" "1"/g' rg.1
+sed -i.bak 's/\.TH.*/.TH "rg" "1"/g' rg.1
+rm -f rg.1.bak # BSD `sed` requires the creation of a back-up file

doc/rg.1

@@ -156,6 +156,12 @@ Only show matches surrounded by word boundaries.
 This is equivalent to putting \\b before and after the search pattern.
 .RS
 .RE
+.TP
+.B \-x, \-\-line\-regexp
+Only show matches surrounded by line boundaries.
+This is equivalent to putting ^...$ around the search pattern.
+.RS
+.RE
 .SH LESS COMMON OPTIONS
 .TP
 .B \-A, \-\-after\-context \f[I]NUM\f[]

doc/rg.1.md

@@ -105,6 +105,10 @@ Project home page: https://github.com/BurntSushi/ripgrep
 : Only show matches surrounded by word boundaries. This is equivalent to
   putting \\b before and after the search pattern.
 
+-x, --line-regexp
+: Only show matches surrounded by line boundaries. This is equivalent to
+  putting ^...$ around the search pattern.
+
 # LESS COMMON OPTIONS
 
 -A, --after-context *NUM*