diff options
Diffstat (limited to 'builtin/grep.c')
| -rw-r--r-- | builtin/grep.c | 112 |
1 files changed, 72 insertions, 40 deletions
diff --git a/builtin/grep.c b/builtin/grep.c index 29adb0a..02b9555 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -260,6 +260,53 @@ static int wait_all(void) } #endif +static int parse_pattern_type_arg(const char *opt, const char *arg) +{ + if (!strcmp(arg, "default")) + return GREP_PATTERN_TYPE_UNSPECIFIED; + else if (!strcmp(arg, "basic")) + return GREP_PATTERN_TYPE_BRE; + else if (!strcmp(arg, "extended")) + return GREP_PATTERN_TYPE_ERE; + else if (!strcmp(arg, "fixed")) + return GREP_PATTERN_TYPE_FIXED; + else if (!strcmp(arg, "perl")) + return GREP_PATTERN_TYPE_PCRE; + die("bad %s argument: %s", opt, arg); +} + +static void grep_pattern_type_options(const int pattern_type, struct grep_opt *opt) +{ + switch (pattern_type) { + case GREP_PATTERN_TYPE_UNSPECIFIED: + /* fall through */ + + case GREP_PATTERN_TYPE_BRE: + opt->fixed = 0; + opt->pcre = 0; + opt->regflags &= ~REG_EXTENDED; + break; + + case GREP_PATTERN_TYPE_ERE: + opt->fixed = 0; + opt->pcre = 0; + opt->regflags |= REG_EXTENDED; + break; + + case GREP_PATTERN_TYPE_FIXED: + opt->fixed = 1; + opt->pcre = 0; + opt->regflags &= ~REG_EXTENDED; + break; + + case GREP_PATTERN_TYPE_PCRE: + opt->fixed = 0; + opt->pcre = 1; + opt->regflags &= ~REG_EXTENDED; + break; + } +} + static int grep_config(const char *var, const char *value, void *cb) { struct grep_opt *opt = cb; @@ -270,12 +317,17 @@ static int grep_config(const char *var, const char *value, void *cb) if (!strcmp(var, "grep.extendedregexp")) { if (git_config_bool(var, value)) - opt->regflags |= REG_EXTENDED; + opt->extended_regexp_option = 1; else - opt->regflags &= ~REG_EXTENDED; + opt->extended_regexp_option = 0; return 0; } + if (!strcmp(var, "grep.patterntype")) { + opt->pattern_type_option = parse_pattern_type_arg(var, value); + return 0; + } + if (!strcmp(var, "grep.linenumber")) { opt->linenum = git_config_bool(var, value); return 0; @@ -669,14 +721,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) int i; int dummy; int use_index = 1; - enum { - pattern_type_unspecified = 0, - pattern_type_bre, - pattern_type_ere, - pattern_type_fixed, - pattern_type_pcre, - }; - int pattern_type = pattern_type_unspecified; + int pattern_type_arg = GREP_PATTERN_TYPE_UNSPECIFIED; struct option options[] = { OPT_BOOLEAN(0, "cached", &cached, @@ -703,18 +748,18 @@ int cmd_grep(int argc, const char **argv, const char *prefix) "descend at most <depth> levels", PARSE_OPT_NONEG, NULL, 1 }, OPT_GROUP(""), - OPT_SET_INT('E', "extended-regexp", &pattern_type, + OPT_SET_INT('E', "extended-regexp", &pattern_type_arg, "use extended POSIX regular expressions", - pattern_type_ere), - OPT_SET_INT('G', "basic-regexp", &pattern_type, + GREP_PATTERN_TYPE_ERE), + OPT_SET_INT('G', "basic-regexp", &pattern_type_arg, "use basic POSIX regular expressions (default)", - pattern_type_bre), - OPT_SET_INT('F', "fixed-strings", &pattern_type, + GREP_PATTERN_TYPE_BRE), + OPT_SET_INT('F', "fixed-strings", &pattern_type_arg, "interpret patterns as fixed strings", - pattern_type_fixed), - OPT_SET_INT('P', "perl-regexp", &pattern_type, + GREP_PATTERN_TYPE_FIXED), + OPT_SET_INT('P', "perl-regexp", &pattern_type_arg, "use Perl-compatible regular expressions", - pattern_type_pcre), + GREP_PATTERN_TYPE_PCRE), OPT_GROUP(""), OPT_BOOLEAN('n', "line-number", &opt.linenum, "show line numbers"), OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1), @@ -799,6 +844,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix) opt.header_tail = &opt.header_list; opt.regflags = REG_NEWLINE; opt.max_depth = -1; + opt.pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED; + opt.extended_regexp_option = 0; strcpy(opt.color_context, ""); strcpy(opt.color_filename, ""); @@ -824,28 +871,13 @@ int cmd_grep(int argc, const char **argv, const char *prefix) PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_STOP_AT_NON_OPTION | PARSE_OPT_NO_INTERNAL_HELP); - switch (pattern_type) { - case pattern_type_fixed: - opt.fixed = 1; - opt.pcre = 0; - break; - case pattern_type_bre: - opt.fixed = 0; - opt.pcre = 0; - opt.regflags &= ~REG_EXTENDED; - break; - case pattern_type_ere: - opt.fixed = 0; - opt.pcre = 0; - opt.regflags |= REG_EXTENDED; - break; - case pattern_type_pcre: - opt.fixed = 0; - opt.pcre = 1; - break; - default: - break; /* nothing */ - } + + if (pattern_type_arg != GREP_PATTERN_TYPE_UNSPECIFIED) + grep_pattern_type_options(pattern_type_arg, &opt); + else if (opt.pattern_type_option != GREP_PATTERN_TYPE_UNSPECIFIED) + grep_pattern_type_options(opt.pattern_type_option, &opt); + else if (opt.extended_regexp_option) + grep_pattern_type_options(GREP_PATTERN_TYPE_ERE, &opt); if (use_index && !startup_info->have_repository) /* die the same way as if we did it at the beginning */ |