1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/regexp/update-headers.py b/js/src/regexp/update-headers.py
new file mode 100644
index 000000000..0cff9d6ae
--- /dev/null
+++ b/js/src/regexp/update-headers.py
@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this file,
+# You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#
+# This script modifies V8 regexp source files to make them suitable for
+# inclusion in SpiderMonkey. Specifically, it:
+#
+# 1. Rewrites all #includes of V8 regexp headers to point to their location in
+#    the SM tree: src/regexp/* --> regexp/*
+# 2. Removes all #includes of other V8 src/* headers. The required definitions
+#    will be provided by regexp-shim.h.
+#
+# Usage:
+#    cd js/src/regexp
+#    find . -name "*.h" -o -name "*.cc" | xargs ./update_headers.py
+#
+
+import fileinput
+import re
+import sys
+
+# 1. Rewrite includes of V8 regexp headers
+regexp_include = re.compile('#include "src/regexp')
+regexp_include_new = '#include "regexp'
+
+# 2. Remove includes of other V8 headers
+other_include = re.compile('#include "src/')
+
+for line in fileinput.input(inplace=1):
+    if regexp_include.search(line):
+        sys.stdout.write(re.sub(regexp_include, regexp_include_new, line))
+    elif other_include.search(line):
+        pass
+    else:
+        sys.stdout.write(line)