diff options
Diffstat (limited to 'builtin-grep.c')
| -rw-r--r-- | builtin-grep.c | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/builtin-grep.c b/builtin-grep.c index 69b7c48..93b7e07 100644 --- a/builtin-grep.c +++ b/builtin-grep.c @@ -410,8 +410,10 @@ static int fixmatch(const char *pattern, char *line, regmatch_t *match) static int match_one_pattern(struct grep_opt *opt, struct grep_pat *p, char *bol, char *eol) { int hit = 0; + int at_true_bol = 1; regmatch_t pmatch[10]; + again: if (!opt->fixed) { regex_t *exp = &p->regexp; hit = !regexec(exp, bol, ARRAY_SIZE(pmatch), @@ -422,22 +424,35 @@ static int match_one_pattern(struct grep_opt *opt, struct grep_pat *p, char *bol } if (hit && opt->word_regexp) { - /* Match beginning must be either - * beginning of the line, or at word - * boundary (i.e. the last char must - * not be alnum or underscore). - */ if ((pmatch[0].rm_so < 0) || (eol - bol) <= pmatch[0].rm_so || (pmatch[0].rm_eo < 0) || (eol - bol) < pmatch[0].rm_eo) die("regexp returned nonsense"); - if (pmatch[0].rm_so != 0 && - word_char(bol[pmatch[0].rm_so-1])) - hit = 0; - if (pmatch[0].rm_eo != (eol-bol) && - word_char(bol[pmatch[0].rm_eo])) + + /* Match beginning must be either beginning of the + * line, or at word boundary (i.e. the last char must + * not be a word char). Similarly, match end must be + * either end of the line, or at word boundary + * (i.e. the next char must not be a word char). + */ + if ( ((pmatch[0].rm_so == 0 && at_true_bol) || + !word_char(bol[pmatch[0].rm_so-1])) && + ((pmatch[0].rm_eo == (eol-bol)) || + !word_char(bol[pmatch[0].rm_eo])) ) + ; + else hit = 0; + + if (!hit && pmatch[0].rm_so + bol + 1 < eol) { + /* There could be more than one match on the + * line, and the first match might not be + * strict word match. But later ones could be! + */ + bol = pmatch[0].rm_so + bol + 1; + at_true_bol = 0; + goto again; + } } return hit; } |