1 files changed, 27 insertions, 0 deletions

diff --git a/shared.c b/shared.c
index 67eb67b..800c06a 100644
--- a/shared.c
+++ b/shared.c
@@ -479,3 +479,30 @@ void cgit_diff_commit(struct commit *commit, filepair_fn fn)
                 old_sha1 = commit->parents->item->object.sha1;
         cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
 }
+
+int cgit_parse_snapshots_mask(const char *str)
+{
+        const struct cgit_snapshot_format *f;
+        static const char *delim = " \t,:/|;";
+        int tl, sl, rv = 0;
+
+        /* favor legacy setting */
+        if(atoi(str))
+                return 1;
+        for(;;) {
+                str += strspn(str,delim);
+                tl = strcspn(str,delim);
+                if (!tl)
+                        break;
+                for (f = cgit_snapshot_formats; f->suffix; f++) {
+                        sl = strlen(f->suffix);
+                        if((tl == sl && !strncmp(f->suffix, str, tl)) ||
+                           (tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) {
+                                rv |= f->bit;
+                                break;
+                        }
+                }
+                str += tl;
+        }
+        return rv;
+}