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[Emacs-diffs] master 95cee7f: Improve the commit-msg Git hook for unibyt
From: |
Eli Zaretskii |
Subject: |
[Emacs-diffs] master 95cee7f: Improve the commit-msg Git hook for unibyte environments |
Date: |
Tue, 14 Apr 2015 18:58:42 +0000 |
branch: master
commit 95cee7f6a6c9332296e386ca6e6fcce3141e5d13
Author: Eli Zaretskii <address@hidden>
Commit: Eli Zaretskii <address@hidden>
Improve the commit-msg Git hook for unibyte environments
* build-aux/git-hooks/commit-msg: Set LC_ALL=C, before running Awk
in unibyte environments. (Suggested by Paul Eggert
<address@hidden>.) Use a more accurate approximation to
[:print:], based on UTF-8 sequences of the unprintable characters.
---
build-aux/git-hooks/commit-msg | 12 +++++++++---
1 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/build-aux/git-hooks/commit-msg b/build-aux/git-hooks/commit-msg
index 6e31dbc..9661376 100755
--- a/build-aux/git-hooks/commit-msg
+++ b/build-aux/git-hooks/commit-msg
@@ -36,8 +36,11 @@ at_sign=`$awk "$print_at_sign" </dev/null 2>/dev/null`
if test "$at_sign" != @; then
at_sign=`LC_ALL=en_US.UTF-8 $awk "$print_at_sign" </dev/null 2>/dev/null`
if test "$at_sign" = @; then
- LC_ALL=en_US.UTF-8; export LC_ALL
+ LC_ALL=en_US.UTF-8
+ else
+ LC_ALL=C
fi
+ export LC_ALL
fi
# Check the log entry.
@@ -45,10 +48,13 @@ exec $awk -v at_sign="$at_sign" -v cent_sign="$cent_sign" '
BEGIN {
# These regular expressions assume traditional Unix unibyte behavior.
# They are needed for old or broken versions of awk, e.g.,
- # mawk 1.3.3 (1996), or gawk on MSYS (2015).
+ # mawk 1.3.3 (1996), or gawk on MSYS (2015), and/or for systems that
+ # cannot use UTF-8 as the codeset for the locale.
space = "[ \f\n\r\t\v]"
non_space = "[^ \f\n\r\t\v]"
- non_print = "[\1-\37\177]"
+ # The non_print below rejects control characters and surrogates
+ # UTF-8 for: 0x01-0x1f 0x7f 0x80-0x9f 0xd800-0xdbff 0xdc00-0xdfff
+ non_print = "[\1-\37\177]|\302[\200-\237]|\355[\240-\277][\200-\277]"
# Prefer POSIX regular expressions if available, as they do a
# better job of checking. Similarly, prefer POSIX negated
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Eli Zaretskii <=