diff options
Diffstat (limited to 'grep.c')
| -rw-r--r-- | grep.c | 14 |
1 files changed, 13 insertions, 1 deletions
@@ -305,6 +305,7 @@ static int match_one_pattern(struct grep_pat *p, char *bol, char *eol, { int hit = 0; int saved_ch = 0; + const char *start = bol; if ((p->token != GREP_PATTERN) && ((p->token == GREP_PATTERN_HEAD) != (ctx == GREP_CONTEXT_HEAD))) @@ -330,7 +331,7 @@ static int match_one_pattern(struct grep_pat *p, char *bol, char *eol, if (hit && p->word_regexp) { if ((pmatch[0].rm_so < 0) || - (eol - bol) <= pmatch[0].rm_so || + (eol - bol) < pmatch[0].rm_so || (pmatch[0].rm_eo < 0) || (eol - bol) < pmatch[0].rm_eo) die("regexp returned nonsense"); @@ -349,6 +350,10 @@ static int match_one_pattern(struct grep_pat *p, char *bol, char *eol, else hit = 0; + /* Words consist of at least one character. */ + if (pmatch->rm_so == pmatch->rm_eo) + 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 @@ -359,12 +364,17 @@ static int match_one_pattern(struct grep_pat *p, char *bol, char *eol, bol = pmatch[0].rm_so + bol + 1; while (word_char(bol[-1]) && bol < eol) bol++; + eflags |= REG_NOTBOL; if (bol < eol) goto again; } } if (p->token == GREP_PATTERN_HEAD && saved_ch) *eol = saved_ch; + if (hit) { + pmatch[0].rm_so += bol - start; + pmatch[0].rm_eo += bol - start; + } return hit; } @@ -494,6 +504,8 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol, *eol = '\0'; while (next_match(opt, bol, eol, ctx, &match, eflags)) { + if (match.rm_so == match.rm_eo) + break; printf("%.*s%s%.*s%s", (int)match.rm_so, bol, opt->color_match, |