#include "cache.h"
+#include "config.h"
#include "grep.h"
#include "userdiff.h"
#include "xdiff-interface.h"
case GREP_PATTERN_TYPE_BRE:
opt->fixed = 0;
opt->pcre1 = 0;
+ opt->pcre2 = 0;
break;
case GREP_PATTERN_TYPE_ERE:
opt->fixed = 0;
opt->pcre1 = 0;
+ opt->pcre2 = 0;
opt->regflags |= REG_EXTENDED;
break;
case GREP_PATTERN_TYPE_FIXED:
opt->fixed = 1;
opt->pcre1 = 0;
+ opt->pcre2 = 0;
break;
case GREP_PATTERN_TYPE_PCRE:
opt->fixed = 0;
+#ifdef USE_LIBPCRE2
+ opt->pcre1 = 0;
+ opt->pcre2 = 1;
+#else
+ /*
+ * It's important that pcre1 always be assigned to
+ * even when there's no USE_LIBPCRE* defined. We still
+ * call the PCRE stub function, it just dies with
+ * "cannot use Perl-compatible regexes[...]".
+ */
opt->pcre1 = 1;
+ opt->pcre2 = 0;
+#endif
break;
}
}
if (!p->pcre1_regexp)
compile_regexp_failed(p, error);
- p->pcre1_extra_info = pcre_study(p->pcre1_regexp, 0, &error);
+ p->pcre1_extra_info = pcre_study(p->pcre1_regexp, PCRE_STUDY_JIT_COMPILE, &error);
if (!p->pcre1_extra_info && error)
die("%s", error);
+
+#ifdef GIT_PCRE1_USE_JIT
+ pcre_config(PCRE_CONFIG_JIT, &p->pcre1_jit_on);
+ if (p->pcre1_jit_on == 1) {
+ p->pcre1_jit_stack = pcre_jit_stack_alloc(1, 1024 * 1024);
+ if (!p->pcre1_jit_stack)
+ die("Couldn't allocate PCRE JIT stack");
+ pcre_assign_jit_stack(p->pcre1_extra_info, NULL, p->pcre1_jit_stack);
+ } else if (p->pcre1_jit_on != 0) {
+ die("BUG: The pcre1_jit_on variable should be 0 or 1, not %d",
+ p->pcre1_jit_on);
+ }
+#endif
}
static int pcre1match(struct grep_pat *p, const char *line, const char *eol,
if (eflags & REG_NOTBOL)
flags |= PCRE_NOTBOL;
- ret = pcre_exec(p->pcre1_regexp, p->pcre1_extra_info, line, eol - line,
- 0, flags, ovector, ARRAY_SIZE(ovector));
+#ifdef GIT_PCRE1_USE_JIT
+ if (p->pcre1_jit_on) {
+ ret = pcre_jit_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
+ eol - line, 0, flags, ovector,
+ ARRAY_SIZE(ovector), p->pcre1_jit_stack);
+ } else
+#endif
+ {
+ ret = pcre_exec(p->pcre1_regexp, p->pcre1_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) {
static void free_pcre1_regexp(struct grep_pat *p)
{
pcre_free(p->pcre1_regexp);
- pcre_free(p->pcre1_extra_info);
+#ifdef GIT_PCRE1_USE_JIT
+ if (p->pcre1_jit_on) {
+ pcre_free_study(p->pcre1_extra_info);
+ pcre_jit_stack_free(p->pcre1_jit_stack);
+ } else
+#endif
+ {
+ pcre_free(p->pcre1_extra_info);
+ }
pcre_free((void *)p->pcre1_tables);
}
#else /* !USE_LIBPCRE1 */
}
#endif /* !USE_LIBPCRE1 */
+#ifdef USE_LIBPCRE2
+static void compile_pcre2_pattern(struct grep_pat *p, const struct grep_opt *opt)
+{
+ int error;
+ PCRE2_UCHAR errbuf[256];
+ PCRE2_SIZE erroffset;
+ int options = PCRE2_MULTILINE;
+ const uint8_t *character_tables = NULL;
+ int jitret;
+
+ assert(opt->pcre2);
+
+ p->pcre2_compile_context = NULL;
+
+ if (opt->ignore_case) {
+ if (has_non_ascii(p->pattern)) {
+ character_tables = pcre2_maketables(NULL);
+ p->pcre2_compile_context = pcre2_compile_context_create(NULL);
+ pcre2_set_character_tables(p->pcre2_compile_context, character_tables);
+ }
+ options |= PCRE2_CASELESS;
+ }
+ if (is_utf8_locale() && has_non_ascii(p->pattern))
+ options |= PCRE2_UTF;
+
+ p->pcre2_pattern = pcre2_compile((PCRE2_SPTR)p->pattern,
+ p->patternlen, options, &error, &erroffset,
+ p->pcre2_compile_context);
+
+ if (p->pcre2_pattern) {
+ p->pcre2_match_data = pcre2_match_data_create_from_pattern(p->pcre2_pattern, NULL);
+ if (!p->pcre2_match_data)
+ die("Couldn't allocate PCRE2 match data");
+ } else {
+ pcre2_get_error_message(error, errbuf, sizeof(errbuf));
+ compile_regexp_failed(p, (const char *)&errbuf);
+ }
+
+ pcre2_config(PCRE2_CONFIG_JIT, &p->pcre2_jit_on);
+ if (p->pcre2_jit_on == 1) {
+ jitret = pcre2_jit_compile(p->pcre2_pattern, PCRE2_JIT_COMPLETE);
+ if (jitret)
+ die("Couldn't JIT the PCRE2 pattern '%s', got '%d'\n", p->pattern, jitret);
+ p->pcre2_jit_stack = pcre2_jit_stack_create(1, 1024 * 1024, NULL);
+ if (!p->pcre2_jit_stack)
+ die("Couldn't allocate PCRE2 JIT stack");
+ p->pcre2_match_context = pcre2_match_context_create(NULL);
+ if (!p->pcre2_match_context)
+ die("Couldn't allocate PCRE2 match context");
+ pcre2_jit_stack_assign(p->pcre2_match_context, NULL, p->pcre2_jit_stack);
+ } else if (p->pcre2_jit_on != 0) {
+ die("BUG: The pcre2_jit_on variable should be 0 or 1, not %d",
+ p->pcre1_jit_on);
+ }
+}
+
+static int pcre2match(struct grep_pat *p, const char *line, const char *eol,
+ regmatch_t *match, int eflags)
+{
+ int ret, flags = 0;
+ PCRE2_SIZE *ovector;
+ PCRE2_UCHAR errbuf[256];
+
+ if (eflags & REG_NOTBOL)
+ flags |= PCRE2_NOTBOL;
+
+ if (p->pcre2_jit_on)
+ ret = pcre2_jit_match(p->pcre2_pattern, (unsigned char *)line,
+ eol - line, 0, flags, p->pcre2_match_data,
+ NULL);
+ else
+ ret = pcre2_match(p->pcre2_pattern, (unsigned char *)line,
+ eol - line, 0, flags, p->pcre2_match_data,
+ NULL);
+
+ if (ret < 0 && ret != PCRE2_ERROR_NOMATCH) {
+ pcre2_get_error_message(ret, errbuf, sizeof(errbuf));
+ die("%s failed with error code %d: %s",
+ (p->pcre2_jit_on ? "pcre2_jit_match" : "pcre2_match"), ret,
+ errbuf);
+ }
+ if (ret > 0) {
+ ovector = pcre2_get_ovector_pointer(p->pcre2_match_data);
+ ret = 0;
+ match->rm_so = (int)ovector[0];
+ match->rm_eo = (int)ovector[1];
+ }
+
+ return ret;
+}
+
+static void free_pcre2_pattern(struct grep_pat *p)
+{
+ pcre2_compile_context_free(p->pcre2_compile_context);
+ pcre2_code_free(p->pcre2_pattern);
+ pcre2_match_data_free(p->pcre2_match_data);
+ pcre2_jit_stack_free(p->pcre2_jit_stack);
+ pcre2_match_context_free(p->pcre2_match_context);
+}
+#else /* !USE_LIBPCRE2 */
+static void compile_pcre2_pattern(struct grep_pat *p, const struct grep_opt *opt)
+{
+ /*
+ * Unreachable until USE_LIBPCRE2 becomes synonymous with
+ * USE_LIBPCRE. See the sibling comment in
+ * grep_set_pattern_type_option().
+ */
+ die("cannot use Perl-compatible regexes when not compiled with USE_LIBPCRE");
+}
+
+static int pcre2match(struct grep_pat *p, const char *line, const char *eol,
+ regmatch_t *match, int eflags)
+{
+ return 1;
+}
+
+static void free_pcre2_pattern(struct grep_pat *p)
+{
+}
+#endif /* !USE_LIBPCRE2 */
+
static void compile_fixed_regexp(struct grep_pat *p, struct grep_opt *opt)
{
struct strbuf sb = STRBUF_INIT;
return;
}
+ if (opt->pcre2) {
+ compile_pcre2_pattern(p, opt);
+ return;
+ }
+
if (opt->pcre1) {
compile_pcre1_regexp(p, opt);
return;
kwsfree(p->kws);
else if (p->pcre1_regexp)
free_pcre1_regexp(p);
+ else if (p->pcre2_pattern)
+ free_pcre2_pattern(p);
else
regfree(&p->regexp);
free(p->pattern);
hit = !fixmatch(p, line, eol, match);
else if (p->pcre1_regexp)
hit = !pcre1match(p, line, eol, match, eflags);
+ else if (p->pcre2_pattern)
+ hit = !pcre2match(p, line, eol, match, eflags);
else
hit = !regexec_buf(&p->regexp, line, eol - line, 1, match,
eflags);
*/
df = alloc_filespec(gs->path);
switch (gs->type) {
- case GREP_SOURCE_SHA1:
+ case GREP_SOURCE_OID:
fill_filespec(df, gs->identifier, 1, 0100644);
break;
case GREP_SOURCE_FILE:
- fill_filespec(df, null_sha1, 0, 0100644);
+ fill_filespec(df, &null_oid, 0, 0100644);
break;
default:
die("BUG: attempt to textconv something without a path?");
* If the identifier is non-NULL (in the submodule case) it
* will be a SHA1 that needs to be copied.
*/
- case GREP_SOURCE_SHA1:
- gs->identifier = xmalloc(20);
- hashcpy(gs->identifier, identifier);
+ case GREP_SOURCE_OID:
+ gs->identifier = oiddup(identifier);
break;
case GREP_SOURCE_BUF:
gs->identifier = NULL;
void grep_source_clear(struct grep_source *gs)
{
- free(gs->name);
- gs->name = NULL;
- free(gs->path);
- gs->path = NULL;
- free(gs->identifier);
- gs->identifier = NULL;
+ FREE_AND_NULL(gs->name);
+ FREE_AND_NULL(gs->path);
+ FREE_AND_NULL(gs->identifier);
grep_source_clear_data(gs);
}
{
switch (gs->type) {
case GREP_SOURCE_FILE:
- case GREP_SOURCE_SHA1:
+ case GREP_SOURCE_OID:
case GREP_SOURCE_SUBMODULE:
- free(gs->buf);
- gs->buf = NULL;
+ FREE_AND_NULL(gs->buf);
gs->size = 0;
break;
case GREP_SOURCE_BUF:
}
}
-static int grep_source_load_sha1(struct grep_source *gs)
+static int grep_source_load_oid(struct grep_source *gs)
{
enum object_type type;
if (!gs->buf)
return error(_("'%s': unable to read %s"),
gs->name,
- sha1_to_hex(gs->identifier));
+ oid_to_hex(gs->identifier));
return 0;
}
switch (gs->type) {
case GREP_SOURCE_FILE:
return grep_source_load_file(gs);
- case GREP_SOURCE_SHA1:
- return grep_source_load_sha1(gs);
+ case GREP_SOURCE_OID:
+ return grep_source_load_oid(gs);
case GREP_SOURCE_BUF:
return gs->buf ? 0 : -1;
case GREP_SOURCE_SUBMODULE: