1 files changed, 54 insertions, 0 deletions
diff --git a/Tools/Scripts/webkitpy/style/checkers/jsonchecker.py b/Tools/Scripts/webkitpy/style/checkers/jsonchecker.py
new file mode 100644
index 000000000..0c2c87fee
--- /dev/null
+++ b/Tools/Scripts/webkitpy/style/checkers/jsonchecker.py
@@ -0,0 +1,54 @@
+# Copyright (C) 2011 Apple Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1.  Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+# 2.  Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Checks WebKit style for JSON files."""
+
+import re
+
+try:
+    import json
+except ImportError:
+    # python 2.5 compatibility
+    import webkitpy.thirdparty.simplejson as json
+
+
+class JSONChecker(object):
+    """Processes JSON lines for checking style."""
+
+    categories = set(('json/syntax',))
+
+    def __init__(self, file_path, handle_style_error):
+        self._handle_style_error = handle_style_error
+        self._handle_style_error.turn_off_line_filtering()
+
+    def check(self, lines):
+        try:
+            json.loads('\n'.join(lines) + '\n')
+        except ValueError, e:
+            self._handle_style_error(self.line_number_from_json_exception(e), 'json/syntax', 5, e.message)
+
+    @staticmethod
+    def line_number_from_json_exception(error):
+        match = re.search(r': line (?P<line>\d+) column \d+', error.message)
+        if not match:
+            return 0
+        return int(match.group('line'))