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-rw-r--r--diffcore-pickaxe.c191
1 files changed, 85 insertions, 106 deletions
diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index 401eb72c61..9795ca1c15 100644
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -7,52 +7,13 @@
#include "diffcore.h"
#include "xdiff-interface.h"
#include "kwset.h"
+#include "commit.h"
+#include "quote.h"
typedef int (*pickaxe_fn)(mmfile_t *one, mmfile_t *two,
struct diff_options *o,
regex_t *regexp, kwset_t kws);
-static int pickaxe_match(struct diff_filepair *p, struct diff_options *o,
- regex_t *regexp, kwset_t kws, pickaxe_fn fn);
-
-static void pickaxe(struct diff_queue_struct *q, struct diff_options *o,
- regex_t *regexp, kwset_t kws, pickaxe_fn fn)
-{
- int i;
- struct diff_queue_struct outq;
-
- DIFF_QUEUE_CLEAR(&outq);
-
- if (o->pickaxe_opts & DIFF_PICKAXE_ALL) {
- /* Showing the whole changeset if needle exists */
- for (i = 0; i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- if (pickaxe_match(p, o, regexp, kws, fn))
- return; /* do not munge the queue */
- }
-
- /*
- * Otherwise we will clear the whole queue by copying
- * the empty outq at the end of this function, but
- * first clear the current entries in the queue.
- */
- for (i = 0; i < q->nr; i++)
- diff_free_filepair(q->queue[i]);
- } else {
- /* Showing only the filepairs that has the needle */
- for (i = 0; i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- if (pickaxe_match(p, o, regexp, kws, fn))
- diff_q(&outq, p);
- else
- diff_free_filepair(p);
- }
- }
-
- free(q->queue);
- *q = outq;
-}
-
struct diffgrep_cb {
regex_t *regexp;
int hit;
@@ -62,7 +23,6 @@ static void diffgrep_consume(void *priv, char *line, unsigned long len)
{
struct diffgrep_cb *data = priv;
regmatch_t regmatch;
- int hold;
if (line[0] != '+' && line[0] != '-')
return;
@@ -72,11 +32,8 @@ static void diffgrep_consume(void *priv, char *line, unsigned long len)
* caller early.
*/
return;
- /* Yuck -- line ought to be "const char *"! */
- hold = line[len];
- line[len] = '\0';
- data->hit = !regexec(data->regexp, line + 1, 1, &regmatch, 0);
- line[len] = hold;
+ data->hit = !regexec_buf(data->regexp, line + 1, len - 1, 1,
+ &regmatch, 0);
}
static int diff_grep(mmfile_t *one, mmfile_t *two,
@@ -89,9 +46,11 @@ static int diff_grep(mmfile_t *one, mmfile_t *two,
xdemitconf_t xecfg;
if (!one)
- return !regexec(regexp, two->ptr, 1, &regmatch, 0);
+ return !regexec_buf(regexp, two->ptr, two->size,
+ 1, &regmatch, 0);
if (!two)
- return !regexec(regexp, one->ptr, 1, &regmatch, 0);
+ return !regexec_buf(regexp, one->ptr, one->size,
+ 1, &regmatch, 0);
/*
* We have both sides; need to run textual diff and see if
@@ -103,34 +62,11 @@ static int diff_grep(mmfile_t *one, mmfile_t *two,
ecbdata.hit = 0;
xecfg.ctxlen = o->context;
xecfg.interhunkctxlen = o->interhunkcontext;
- xdi_diff_outf(one, two, diffgrep_consume, &ecbdata,
- &xpp, &xecfg);
+ if (xdi_diff_outf(one, two, diffgrep_consume, &ecbdata, &xpp, &xecfg))
+ return 0;
return ecbdata.hit;
}
-static void diffcore_pickaxe_grep(struct diff_options *o)
-{
- int err;
- regex_t regex;
- int cflags = REG_EXTENDED | REG_NEWLINE;
-
- if (DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE))
- cflags |= REG_ICASE;
-
- err = regcomp(&regex, o->pickaxe, cflags);
- if (err) {
- char errbuf[1024];
- regerror(err, &regex, errbuf, 1024);
- regfree(&regex);
- die("invalid regex: %s", errbuf);
- }
-
- pickaxe(&diff_queued_diff, o, &regex, NULL, diff_grep);
-
- regfree(&regex);
- return;
-}
-
static unsigned int contains(mmfile_t *mf, regex_t *regexp, kwset_t kws)
{
unsigned int cnt;
@@ -145,8 +81,8 @@ static unsigned int contains(mmfile_t *mf, regex_t *regexp, kwset_t kws)
regmatch_t regmatch;
int flags = 0;
- assert(data[sz] == '\0');
- while (*data && !regexec(regexp, data, 1, &regmatch, flags)) {
+ while (*data &&
+ !regexec_buf(regexp, data, sz, 1, &regmatch, flags)) {
flags |= REG_NOTBOL;
data += regmatch.rm_eo;
if (*data && regmatch.rm_so == regmatch.rm_eo)
@@ -158,13 +94,10 @@ static unsigned int contains(mmfile_t *mf, regex_t *regexp, kwset_t kws)
while (sz) {
struct kwsmatch kwsm;
size_t offset = kwsexec(kws, data, sz, &kwsm);
- const char *found;
if (offset == -1)
break;
- else
- found = data + offset;
- sz -= found - data + kwsm.size[0];
- data = found + kwsm.size[0];
+ sz -= offset + kwsm.size[0];
+ data += offset + kwsm.size[0];
cnt++;
}
}
@@ -227,46 +160,92 @@ static int pickaxe_match(struct diff_filepair *p, struct diff_options *o,
return ret;
}
-static void diffcore_pickaxe_count(struct diff_options *o)
+static void pickaxe(struct diff_queue_struct *q, struct diff_options *o,
+ regex_t *regexp, kwset_t kws, pickaxe_fn fn)
+{
+ int i;
+ struct diff_queue_struct outq;
+
+ DIFF_QUEUE_CLEAR(&outq);
+
+ if (o->pickaxe_opts & DIFF_PICKAXE_ALL) {
+ /* Showing the whole changeset if needle exists */
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if (pickaxe_match(p, o, regexp, kws, fn))
+ return; /* do not munge the queue */
+ }
+
+ /*
+ * Otherwise we will clear the whole queue by copying
+ * the empty outq at the end of this function, but
+ * first clear the current entries in the queue.
+ */
+ for (i = 0; i < q->nr; i++)
+ diff_free_filepair(q->queue[i]);
+ } else {
+ /* Showing only the filepairs that has the needle */
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if (pickaxe_match(p, o, regexp, kws, fn))
+ diff_q(&outq, p);
+ else
+ diff_free_filepair(p);
+ }
+ }
+
+ free(q->queue);
+ *q = outq;
+}
+
+static void regcomp_or_die(regex_t *regex, const char *needle, int cflags)
+{
+ int err = regcomp(regex, needle, cflags);
+ if (err) {
+ /* The POSIX.2 people are surely sick */
+ char errbuf[1024];
+ regerror(err, regex, errbuf, 1024);
+ regfree(regex);
+ die("invalid regex: %s", errbuf);
+ }
+}
+
+void diffcore_pickaxe(struct diff_options *o)
{
const char *needle = o->pickaxe;
int opts = o->pickaxe_opts;
- unsigned long len = strlen(needle);
regex_t regex, *regexp = NULL;
kwset_t kws = NULL;
- if (opts & DIFF_PICKAXE_REGEX) {
- int err;
- err = regcomp(&regex, needle, REG_EXTENDED | REG_NEWLINE);
- if (err) {
- /* The POSIX.2 people are surely sick */
- char errbuf[1024];
- regerror(err, &regex, errbuf, 1024);
- regfree(&regex);
- die("invalid regex: %s", errbuf);
- }
+ if (opts & (DIFF_PICKAXE_REGEX | DIFF_PICKAXE_KIND_G)) {
+ int cflags = REG_EXTENDED | REG_NEWLINE;
+ if (DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE))
+ cflags |= REG_ICASE;
+ regcomp_or_die(&regex, needle, cflags);
+ regexp = &regex;
+ } else if (DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE) &&
+ has_non_ascii(needle)) {
+ struct strbuf sb = STRBUF_INIT;
+ int cflags = REG_NEWLINE | REG_ICASE;
+
+ basic_regex_quote_buf(&sb, needle);
+ regcomp_or_die(&regex, sb.buf, cflags);
+ strbuf_release(&sb);
regexp = &regex;
} else {
kws = kwsalloc(DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE)
? tolower_trans_tbl : NULL);
- kwsincr(kws, needle, len);
+ kwsincr(kws, needle, strlen(needle));
kwsprep(kws);
}
- pickaxe(&diff_queued_diff, o, regexp, kws, has_changes);
+ /* Might want to warn when both S and G are on; I don't care... */
+ pickaxe(&diff_queued_diff, o, regexp, kws,
+ (opts & DIFF_PICKAXE_KIND_G) ? diff_grep : has_changes);
- if (opts & DIFF_PICKAXE_REGEX)
- regfree(&regex);
+ if (regexp)
+ regfree(regexp);
else
kwsfree(kws);
return;
}
-
-void diffcore_pickaxe(struct diff_options *o)
-{
- /* Might want to warn when both S and G are on; I don't care... */
- if (o->pickaxe_opts & DIFF_PICKAXE_KIND_G)
- diffcore_pickaxe_grep(o);
- else
- diffcore_pickaxe_count(o);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 09:21:06 +0000