diff options
Diffstat (limited to 'toys/posix/sed.c')
| -rw-r--r-- | toys/posix/sed.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/toys/posix/sed.c b/toys/posix/sed.c index 744edf7b..31268ece 100644 --- a/toys/posix/sed.c +++ b/toys/posix/sed.c @@ -657,6 +657,7 @@ static char *unescape_delimited_string(char **pstr, char *delim) { char *to, *from, mode = 0, d; + // Grab leading delimiter (if necessary), allocate space for new string from = *pstr; if (!delim || !*delim) { if (!(d = *(from++))) return 0; @@ -670,13 +671,23 @@ static char *unescape_delimited_string(char **pstr, char *delim) if (!*from) return 0; // delimiter in regex character range doesn't count - if (!mode && *from == '[') { - mode = '['; - if (from[1]=='-' || from[1]==']') *(to++) = *(from++); - } else if (mode && *from == ']') mode = 0; + if (*from == '[') { + if (!mode) { + mode = ']'; + if (from[1]=='-' || from[1]==']') *(to++) = *(from++); + } else if (mode == ']' && strchr(".=:", from[1])) { + *(to++) = *(from++); + mode = *from; + } + } else if (*from == mode) { + if (mode == ']') mode = 0; + else { + *(to++) = *(from++); + mode = ']'; + } // Length 1 range (X-X with same X) is "undefined" and makes regcomp err, // but the perl build does it, so we need to filter it out. - else if (mode && *from == '-' && from[-1] == from[1]) { + } else if (mode && *from == '-' && from[-1] == from[1]) { from+=2; continue; } else if (*from == '\\') { |