aboutsummaryrefslogtreecommitdiff
path: root/diff.c
diff options
context:
space:
mode:
Diffstat (limited to 'diff.c')
-rw-r--r--diff.c122
1 files changed, 66 insertions, 56 deletions
diff --git a/diff.c b/diff.c
index f43b581f4..b020c070c 100644
--- a/diff.c
+++ b/diff.c
@@ -989,10 +989,74 @@ static void diff_words_flush(struct emit_callback *ecbdata)
diff_words_show(ecbdata->diff_words);
}
+static void diff_filespec_load_driver(struct diff_filespec *one)
+{
+ /* Use already-loaded driver */
+ if (one->driver)
+ return;
+
+ if (S_ISREG(one->mode))
+ one->driver = userdiff_find_by_path(one->path);
+
+ /* Fallback to default settings */
+ if (!one->driver)
+ one->driver = userdiff_find_by_name("default");
+}
+
+static const char *userdiff_word_regex(struct diff_filespec *one)
+{
+ diff_filespec_load_driver(one);
+ return one->driver->word_regex;
+}
+
+static void init_diff_words_data(struct emit_callback *ecbdata,
+ struct diff_options *orig_opts,
+ struct diff_filespec *one,
+ struct diff_filespec *two)
+{
+ int i;
+ struct diff_options *o = xmalloc(sizeof(struct diff_options));
+ memcpy(o, orig_opts, sizeof(struct diff_options));
+
+ ecbdata->diff_words =
+ xcalloc(1, sizeof(struct diff_words_data));
+ ecbdata->diff_words->type = o->word_diff;
+ ecbdata->diff_words->opt = o;
+ if (!o->word_regex)
+ o->word_regex = userdiff_word_regex(one);
+ if (!o->word_regex)
+ o->word_regex = userdiff_word_regex(two);
+ if (!o->word_regex)
+ o->word_regex = diff_word_regex_cfg;
+ if (o->word_regex) {
+ ecbdata->diff_words->word_regex = (regex_t *)
+ xmalloc(sizeof(regex_t));
+ if (regcomp(ecbdata->diff_words->word_regex,
+ o->word_regex,
+ REG_EXTENDED | REG_NEWLINE))
+ die ("Invalid regular expression: %s",
+ o->word_regex);
+ }
+ for (i = 0; i < ARRAY_SIZE(diff_words_styles); i++) {
+ if (o->word_diff == diff_words_styles[i].type) {
+ ecbdata->diff_words->style =
+ &diff_words_styles[i];
+ break;
+ }
+ }
+ if (want_color(o->use_color)) {
+ struct diff_words_style *st = ecbdata->diff_words->style;
+ st->old.color = diff_get_color_opt(o, DIFF_FILE_OLD);
+ st->new.color = diff_get_color_opt(o, DIFF_FILE_NEW);
+ st->ctx.color = diff_get_color_opt(o, DIFF_PLAIN);
+ }
+}
+
static void free_diff_words_data(struct emit_callback *ecbdata)
{
if (ecbdata->diff_words) {
diff_words_flush(ecbdata);
+ free (ecbdata->diff_words->opt);
free (ecbdata->diff_words->minus.text.ptr);
free (ecbdata->diff_words->minus.orig);
free (ecbdata->diff_words->plus.text.ptr);
@@ -2061,20 +2125,6 @@ static void emit_binary_diff(FILE *file, mmfile_t *one, mmfile_t *two, char *pre
emit_binary_diff_body(file, two, one, prefix);
}
-static void diff_filespec_load_driver(struct diff_filespec *one)
-{
- /* Use already-loaded driver */
- if (one->driver)
- return;
-
- if (S_ISREG(one->mode))
- one->driver = userdiff_find_by_path(one->path);
-
- /* Fallback to default settings */
- if (!one->driver)
- one->driver = userdiff_find_by_name("default");
-}
-
int diff_filespec_is_binary(struct diff_filespec *one)
{
if (one->is_binary == -1) {
@@ -2100,12 +2150,6 @@ static const struct userdiff_funcname *diff_funcname_pattern(struct diff_filespe
return one->driver->funcname.pattern ? &one->driver->funcname : NULL;
}
-static const char *userdiff_word_regex(struct diff_filespec *one)
-{
- diff_filespec_load_driver(one);
- return one->driver->word_regex;
-}
-
void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b)
{
if (!options->a_prefix)
@@ -2292,42 +2336,8 @@ static void builtin_diff(const char *name_a,
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
else if (!prefixcmp(diffopts, "-u"))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
- if (o->word_diff) {
- int i;
-
- ecbdata.diff_words =
- xcalloc(1, sizeof(struct diff_words_data));
- ecbdata.diff_words->type = o->word_diff;
- ecbdata.diff_words->opt = o;
- if (!o->word_regex)
- o->word_regex = userdiff_word_regex(one);
- if (!o->word_regex)
- o->word_regex = userdiff_word_regex(two);
- if (!o->word_regex)
- o->word_regex = diff_word_regex_cfg;
- if (o->word_regex) {
- ecbdata.diff_words->word_regex = (regex_t *)
- xmalloc(sizeof(regex_t));
- if (regcomp(ecbdata.diff_words->word_regex,
- o->word_regex,
- REG_EXTENDED | REG_NEWLINE))
- die ("Invalid regular expression: %s",
- o->word_regex);
- }
- for (i = 0; i < ARRAY_SIZE(diff_words_styles); i++) {
- if (o->word_diff == diff_words_styles[i].type) {
- ecbdata.diff_words->style =
- &diff_words_styles[i];
- break;
- }
- }
- if (want_color(o->use_color)) {
- struct diff_words_style *st = ecbdata.diff_words->style;
- st->old.color = diff_get_color_opt(o, DIFF_FILE_OLD);
- st->new.color = diff_get_color_opt(o, DIFF_FILE_NEW);
- st->ctx.color = diff_get_color_opt(o, DIFF_PLAIN);
- }
- }
+ if (o->word_diff)
+ init_diff_words_data(&ecbdata, o, one, two);
xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
&xpp, &xecfg);
if (o->word_diff)