die("%s'%s': %s", where, p->pattern, error);
}
+#ifdef USE_LIBPCRE
+static void compile_pcre_regexp(struct grep_pat *p, const struct grep_opt *opt)
+{
+ const char *error;
+ int erroffset;
+ int options = 0;
+
+ if (opt->ignore_case)
+ options |= PCRE_CASELESS;
+
+ p->pcre_regexp = pcre_compile(p->pattern, options, &error, &erroffset,
+ NULL);
+ if (!p->pcre_regexp)
+ compile_regexp_failed(p, error);
+
+ p->pcre_extra_info = pcre_study(p->pcre_regexp, 0, &error);
+ if (!p->pcre_extra_info && error)
+ die("%s", error);
+}
+
+static int pcrematch(struct grep_pat *p, const char *line, const char *eol,
+ regmatch_t *match, int eflags)
+{
+ int ovector[30], ret, flags = 0;
+
+ if (eflags & REG_NOTBOL)
+ flags |= PCRE_NOTBOL;
+
+ ret = pcre_exec(p->pcre_regexp, p->pcre_extra_info, line, eol - line,
+ 0, flags, ovector, ARRAY_SIZE(ovector));
+ if (ret < 0 && ret != PCRE_ERROR_NOMATCH)
+ die("pcre_exec failed with error code %d", ret);
+ if (ret > 0) {
+ ret = 0;
+ match->rm_so = ovector[0];
+ match->rm_eo = ovector[1];
+ }
+
+ return ret;
+}
+
+static void free_pcre_regexp(struct grep_pat *p)
+{
+ pcre_free(p->pcre_regexp);
+ pcre_free(p->pcre_extra_info);
+}
+#else /* !USE_LIBPCRE */
+static void compile_pcre_regexp(struct grep_pat *p, const struct grep_opt *opt)
+{
+ die("cannot use Perl-compatible regexes when not compiled with USE_LIBPCRE");
+}
+
+static int pcrematch(struct grep_pat *p, const char *line, const char *eol,
+ regmatch_t *match, int eflags)
+{
+ return 1;
+}
+
+static void free_pcre_regexp(struct grep_pat *p)
+{
+}
+#endif /* !USE_LIBPCRE */
+
static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
{
int err;
if (p->fixed)
return;
+ if (opt->pcre) {
+ compile_pcre_regexp(p, opt);
+ return;
+ }
+
err = regcomp(&p->regexp, p->pattern, opt->regflags);
if (err) {
char errbuf[1024];
case GREP_PATTERN: /* atom */
case GREP_PATTERN_HEAD:
case GREP_PATTERN_BODY:
- regfree(&p->regexp);
+ if (p->pcre_regexp)
+ free_pcre_regexp(p);
+ else
+ regfree(&p->regexp);
break;
default:
break;
if (p->fixed)
hit = !fixmatch(p, line, eol, match);
+ else if (p->pcre_regexp)
+ hit = !pcrematch(p, line, eol, match, eflags);
else
hit = !regmatch(&p->regexp, line, eol, match, eflags);
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.
*/