diff --git a/src/util/funcs.zig b/src/util/funcs.zig
index c65173dd38e05c998bd04d4bdae7eb4a6f2974a8..fb6ae10a542cc97f21442cad28e7929c73a0a272 100644
--- a/src/util/funcs.zig
+++ b/src/util/funcs.zig
@@ -305,3 +305,21 @@ pub fn detct_mainfile(override: []const u8, dir: ?std.fs.Dir, name: []const u8)
     }
     return error.CantFindMain;
 }
+
+pub fn indexOfN(haystack: []const u8, needle: u8, n: usize) ?usize {
+    var i: usize = 0;
+    var c: usize = 0;
+    while (c < n) {
+        i = indexOfAfter(haystack, needle, i) orelse return null;
+        c += 1;
+    }
+    return i;
+}
+
+pub fn indexOfAfter(haystack: []const u8, needle: u8, after: usize) ?usize {
+    for (haystack) |c, i| {
+        if (i <= after) continue;
+        if (c == needle) return i;
+    }
+    return null;
+}