wrapper.c: add and use fopen_or_warn()

diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index e627140b85659117790f361f7ab49746bec7b950..341529b5a865ae6460f50d8593d52497059f2408 100644 (file)
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -7,6 +7,8 @@
 #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,
@@ -199,6 +201,18 @@ static void pickaxe(struct diff_queue_struct *q, struct diff_options *o,
        *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;
@@ -207,18 +221,19 @@ void diffcore_pickaxe(struct diff_options *o)
        kwset_t kws = NULL;
 
        if (opts & (DIFF_PICKAXE_REGEX | DIFF_PICKAXE_KIND_G)) {
-               int err;
                int cflags = REG_EXTENDED | REG_NEWLINE;
                if (DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE))
                        cflags |= REG_ICASE;
-               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);
-               }
+               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)