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libbb/lineedit: do not escape %^=+}]:, escape ~? in tab completion

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function                                             old     new   delta
.rodata                                           104185  104180      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2021-09-17 17:32:30 +02:00
parent 6279aec03d
commit 6d2463ac01
1 changed files with 10 additions and 1 deletions
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11
libbb/lineedit.c
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@ -1133,7 +1133,16 @@ static void showfiles(void)
static const char *is_special_char(char c)
{
return strchr(" `\"#$%^&*()=+{}[]:;'|\\<>", c);
// {: It's mandatory to escape { only if entire name is "{"
// (otherwise it's not special. Example: file named "{ "
// can be escaped simply as "{\ "; "{a" or "a{" need no escaping),
// or if shell supports brace expansion
// (ash doesn't, hush optionally does).
// (): unlike {, shell treats () specially even in contexts
// where they clearly are not valid (e.g. "echo )" is an error).
// #: needs escaping to not start a shell comment.
return strchr(" `'\"\\#$~?*[{()&;|<>", c);
// Used to also have %^=+}]: but not necessary to escape?
}
static char *quote_special_chars(char *found)