Merge branch 'maint' into bc/master-diff-hunk-header-fix

[git.git] / xdiff-interface.c

diff --git a/xdiff-interface.c b/xdiff-interface.c
index 944ad9887f5c94ca0e63f9a6c901447634f871ce..6c6bb19973475d9db7dfc18d5695c1bf3ec7359e 100644 (file)
--- a/xdiff-interface.c
+++ b/xdiff-interface.c
@@ -194,31 +194,34 @@ static long ff_regexp(const char *line, long len,
        char *line_buffer = xstrndup(line, len); /* make NUL terminated */
        struct ff_regs *regs = priv;
        regmatch_t pmatch[2];
-       int result = 0, i;
+       int i;
+       int result = -1;
 
        for (i = 0; i < regs->nr; i++) {
                struct ff_reg *reg = regs->array + i;
-               if (reg->negate ^ !!regexec(&reg->re,
-                                       line_buffer, 2, pmatch, 0)) {
-                       free(line_buffer);
-                       return -1;
+               if (!regexec(&reg->re, line_buffer, 2, pmatch, 0)) {
+                       if (reg->negate)
+                               goto fail;
+                       break;
                }
        }
+       if (regs->nr <= i)
+               goto fail;
        i = pmatch[1].rm_so >= 0 ? 1 : 0;
        line += pmatch[i].rm_so;
        result = pmatch[i].rm_eo - pmatch[i].rm_so;
        if (result > buffer_size)
                result = buffer_size;
        else
-               while (result > 0 && (isspace(line[result - 1]) ||
-                                       line[result - 1] == '\n'))
+               while (result > 0 && (isspace(line[result - 1])))
                        result--;
        memcpy(buffer, line, result);
+ fail:
        free(line_buffer);
        return result;
 }
 
-void xdiff_set_find_func(xdemitconf_t *xecfg, const char *value)
+void xdiff_set_find_func(xdemitconf_t *xecfg, const char *value, int cflags)
 {
        int i;
        struct ff_regs *regs;
@@ -243,7 +246,7 @@ void xdiff_set_find_func(xdemitconf_t *xecfg, const char *value)
                        expression = buffer = xstrndup(value, ep - value);
                else
                        expression = value;
-               if (regcomp(&reg->re, expression, 0))
+               if (regcomp(&reg->re, expression, cflags))
                        die("Invalid regexp to look for hunk header: %s", expression);
                free(buffer);
                value = ep + 1;