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Do not print non-displayable characters

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fzf used to print non-displayable characters (ascii code < 32) as '?',
but we will simply ignore those characters with this patch, just like
our terminals do.

\n and \r are exceptions. They will be printed as a space character.

TODO: \H should delete the preceding character, but this is not implemented.

Related: #1253
This commit is contained in:
Junegunn Choi
2018-04-12 17:49:52 +09:00
parent 7dbbbef51a
commit f57920ad90
2 changed files with 13 additions and 10 deletions
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9
src/util/util.go
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@@ -17,11 +17,12 @@ func RuneWidth(r rune, prefixWidth int, tabstop int) int {
return tabstop - prefixWidth%tabstop
} else if w, found := _runeWidths[r]; found {
return w
} else {
w := Max(runewidth.RuneWidth(r), 1)
_runeWidths[r] = w
return w
} else if r == '\n' || r == '\r' {
return 1
}
w := runewidth.RuneWidth(r)
_runeWidths[r] = w
return w
}
// Max returns the largest integer