diff options
| -rw-r--r-- | Documentation/git-grep.txt | 2 | ||||
| -rw-r--r-- | builtin-grep.c | 36 |
2 files changed, 33 insertions, 5 deletions
diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt index 56b683ae5..74102b794 100644 --- a/Documentation/git-grep.txt +++ b/Documentation/git-grep.txt @@ -12,7 +12,7 @@ SYNOPSIS 'git-grep' [--cached] [-a | --text] [-I] [-i | --ignore-case] [-w | --word-regexp] [-v | --invert-match] - [-E | --extended-regexp] [-G | --basic-regexp] + [-E | --extended-regexp] [-G | --basic-regexp] [-F | --fixed-strings] [-n] [-l | --files-with-matches] [-L | --files-without-match] [-c | --count] [-A <post-context>] [-B <pre-context>] [-C <context>] diff --git a/builtin-grep.c b/builtin-grep.c index 52ac521af..fead35662 100644 --- a/builtin-grep.c +++ b/builtin-grep.c @@ -98,6 +98,7 @@ struct grep_opt { unsigned unmatch_name_only:1; unsigned count:1; unsigned word_regexp:1; + unsigned fixed:1; #define GREP_BINARY_DEFAULT 0 #define GREP_BINARY_NOMATCH 1 #define GREP_BINARY_TEXT 2 @@ -179,6 +180,20 @@ static int buffer_is_binary(const char *ptr, unsigned long size) return 0; } +static int fixmatch(const char *pattern, char *line, regmatch_t *match) +{ + char *hit = strstr(line, pattern); + if (!hit) { + match->rm_so = match->rm_eo = -1; + return REG_NOMATCH; + } + else { + match->rm_so = hit - line; + match->rm_eo = match->rm_so + strlen(pattern); + return 0; + } +} + static int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size) { @@ -224,9 +239,14 @@ static int grep_buffer(struct grep_opt *opt, const char *name, *eol = 0; for (p = opt->pattern_list; p; p = p->next) { - regex_t *exp = &p->regexp; - hit = !regexec(exp, bol, ARRAY_SIZE(pmatch), - pmatch, 0); + if (!opt->fixed) { + regex_t *exp = &p->regexp; + hit = !regexec(exp, bol, ARRAY_SIZE(pmatch), + pmatch, 0); + } + else { + hit = !fixmatch(p->pattern, bol, pmatch); + } if (hit && opt->word_regexp) { /* Match beginning must be either @@ -549,6 +569,11 @@ int cmd_grep(int argc, const char **argv, char **envp) opt.regflags |= REG_EXTENDED; continue; } + if (!strcmp("-F", arg) || + !strcmp("--fixed-strings", arg)) { + opt.fixed = 1; + continue; + } if (!strcmp("-G", arg) || !strcmp("--basic-regexp", arg)) { opt.regflags &= ~REG_EXTENDED; @@ -674,7 +699,10 @@ int cmd_grep(int argc, const char **argv, char **envp) if (!opt.pattern_list) die("no pattern given."); - compile_patterns(&opt); + if ((opt.regflags != REG_NEWLINE) && opt.fixed) + die("cannot mix --fixed-strings and regexp"); + if (!opt.fixed) + compile_patterns(&opt); /* Check revs and then paths */ for (i = 1; i < argc; i++) { |