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-rwxr-xr-xbuild-aux/git-hooks/commit-msg12
1 files changed, 9 insertions, 3 deletions
diff --git a/build-aux/git-hooks/commit-msg b/build-aux/git-hooks/commit-msg
index 6e31dbcbdbe..96613765d32 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