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index d03d9e24c23eff2d60ae7226a412f3ccf66670fd..9c5e1cd950c8d1d97290a047fb3780482f8eb8b7 100644 (file)
--- a/grep.c
+++ b/grep.c
{
const char *error;
int erroffset;
- int options = 0;
+ int options = PCRE_MULTILINE;
if (opt->ignore_case)
options |= PCRE_CASELESS;
}
#endif /* !USE_LIBPCRE */
+static int is_fixed(const char *s, size_t len)
+{
+ size_t i;
+
+ /* regcomp cannot accept patterns with NULs so we
+ * consider any pattern containing a NUL fixed.
+ */
+ if (memchr(s, 0, len))
+ return 1;
+
+ for (i = 0; i < len; i++) {
+ if (is_regex_special(s[i]))
+ return 0;
+ }
+
+ return 1;
+}
+
static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
{
int err;
p->word_regexp = opt->word_regexp;
p->ignore_case = opt->ignore_case;
- p->fixed = opt->fixed;
- if (p->fixed)
+ if (opt->fixed || is_fixed(p->pattern, p->patternlen))
+ p->fixed = 1;
+ else
+ p->fixed = 0;
+
+ if (p->fixed) {
+ if (opt->regflags & REG_ICASE || p->ignore_case) {
+ static char trans[256];
+ int i;
+ for (i = 0; i < 256; i++)
+ trans[i] = tolower(i);
+ p->kws = kwsalloc(trans);
+ } else {
+ p->kws = kwsalloc(NULL);
+ }
+ kwsincr(p->kws, p->pattern, p->patternlen);
+ kwsprep(p->kws);
return;
+ }
if (opt->pcre) {
compile_pcre_regexp(p, opt);
case GREP_PATTERN: /* atom */
case GREP_PATTERN_HEAD:
case GREP_PATTERN_BODY:
- if (p->pcre_regexp)
+ if (p->kws)
+ kwsfree(p->kws);
+ else if (p->pcre_regexp)
free_pcre_regexp(p);
else
regfree(&p->regexp);
static void output_color(struct grep_opt *opt, const void *data, size_t size,
const char *color)
{
- if (opt->color && color && color[0]) {
+ if (want_color(opt->color) && color && color[0]) {
opt->output(opt, color, strlen(color));
opt->output(opt, data, size);
opt->output(opt, GIT_COLOR_RESET, strlen(GIT_COLOR_RESET));
static int fixmatch(struct grep_pat *p, char *line, char *eol,
regmatch_t *match)
{
- char *hit;
-
- if (p->ignore_case) {
- char *s = line;
- do {
- hit = strcasestr(s, p->pattern);
- if (hit)
- break;
- s += strlen(s) + 1;
- } while (s < eol);
- } else
- hit = memmem(line, eol - line, p->pattern, p->patternlen);
-
- if (!hit) {
+ struct kwsmatch kwsm;
+ size_t offset = kwsexec(p->kws, line, eol - line, &kwsm);
+ if (offset == -1) {
match->rm_so = match->rm_eo = -1;
return REG_NOMATCH;
- }
- else {
- match->rm_so = hit - line;
- match->rm_eo = match->rm_so + p->patternlen;
+ } else {
+ match->rm_so = offset;
+ match->rm_eo = match->rm_so + kwsm.size[0];
return 0;
}
}
int rest = eol - bol;
char *line_color = NULL;
- if (opt->pre_context || opt->post_context) {
+ if (opt->file_break && opt->last_shown == 0) {
+ if (opt->show_hunk_mark)
+ opt->output(opt, "\n", 1);
+ } else if (opt->pre_context || opt->post_context || opt->funcbody) {
if (opt->last_shown == 0) {
if (opt->show_hunk_mark) {
output_color(opt, "--", 2, opt->color_sep);
opt->output(opt, "\n", 1);
}
}
+ if (opt->heading && opt->last_shown == 0) {
+ output_color(opt, name, strlen(name), opt->color_filename);
+ opt->output(opt, "\n", 1);
+ }
opt->last_shown = lno;
- if (opt->pathname) {
+ if (!opt->heading && opt->pathname) {
output_color(opt, name, strlen(name), opt->color_filename);
output_sep(opt, sign);
}
}
static void show_pre_context(struct grep_opt *opt, const char *name, char *buf,
- char *bol, unsigned lno)
+ char *bol, char *end, unsigned lno)
{
unsigned cur = lno, from = 1, funcname_lno = 0;
- int funcname_needed = opt->funcname;
+ int funcname_needed = !!opt->funcname;
+
+ if (opt->funcbody && !match_funcname(opt, bol, end))
+ funcname_needed = 2;
if (opt->pre_context < lno)
from = lno - opt->pre_context;
from = opt->last_shown + 1;
/* Rewind. */
- while (bol > buf && cur > from) {
+ while (bol > buf &&
+ cur > (funcname_needed == 2 ? opt->last_shown + 1 : from)) {
char *eol = --bol;
while (bol > buf && bol[-1] != '\n')
int binary_match_only = 0;
unsigned count = 0;
int try_lookahead = 0;
+ int show_function = 0;
enum grep_context ctx = GREP_CONTEXT_HEAD;
xdemitconf_t xecfg;
if (!opt->output)
opt->output = std_output;
- if (opt->last_shown && (opt->pre_context || opt->post_context) &&
- opt->output == std_output)
- opt->show_hunk_mark = 1;
+ if (opt->pre_context || opt->post_context || opt->file_break ||
+ opt->funcbody) {
+ /* Show hunk marks, except for the first file. */
+ if (opt->last_shown)
+ opt->show_hunk_mark = 1;
+ /*
+ * If we're using threads then we can't easily identify
+ * the first file. Always put hunk marks in that case
+ * and skip the very first one later in work_done().
+ */
+ if (opt->output != std_output)
+ opt->show_hunk_mark = 1;
+ }
opt->last_shown = 0;
switch (opt->binary) {
*/
if (try_lookahead
&& !(last_hit
- && lno <= last_hit + opt->post_context)
+ && (show_function ||
+ lno <= last_hit + opt->post_context))
&& look_ahead(opt, &left, &lno, &bol))
break;
eol = end_of_line(bol, &left);
/* Hit at this line. If we haven't shown the
* pre-context lines, we would need to show them.
*/
- if (opt->pre_context)
- show_pre_context(opt, name, buf, bol, lno);
+ if (opt->pre_context || opt->funcbody)
+ show_pre_context(opt, name, buf, bol, eol, lno);
else if (opt->funcname)
show_funcname_line(opt, name, buf, bol, lno);
show_line(opt, bol, eol, name, lno, ':');
last_hit = lno;
+ if (opt->funcbody)
+ show_function = 1;
+ goto next_line;
}
- else if (last_hit &&
- lno <= last_hit + opt->post_context) {
+ if (show_function && match_funcname(opt, bol, eol))
+ show_function = 0;
+ if (show_function ||
+ (last_hit && lno <= last_hit + opt->post_context)) {
/* If the last hit is within the post context,
* we need to show this line.
*/