add hg and python

1 files changed, 48 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Demo/parser/test_parser.py b/sys/src/cmd/python/Demo/parser/test_parser.py
new file mode 100755
index 000000000..be39bca7f
--- /dev/null
+++ b/sys/src/cmd/python/Demo/parser/test_parser.py
@@ -0,0 +1,48 @@
+#! /usr/bin/env python
+#  (Force the script to use the latest build.)
+#
+#  test_parser.py
+
+import parser, traceback
+
+_numFailed = 0
+
+def testChunk(t, fileName):
+    global _numFailed
+    print '----', fileName,
+    try:
+        ast = parser.suite(t)
+        tup = parser.ast2tuple(ast)
+        # this discards the first AST; a huge memory savings when running
+        # against a large source file like Tkinter.py.
+        ast = None
+        new = parser.tuple2ast(tup)
+    except parser.ParserError, err:
+        print
+        print 'parser module raised exception on input file', fileName + ':'
+        traceback.print_exc()
+        _numFailed = _numFailed + 1
+    else:
+        if tup != parser.ast2tuple(new):
+            print
+            print 'parser module failed on input file', fileName
+            _numFailed = _numFailed + 1
+        else:
+            print 'o.k.'
+
+def testFile(fileName):
+    t = open(fileName).read()
+    testChunk(t, fileName)
+
+def test():
+    import sys
+    args = sys.argv[1:]
+    if not args:
+        import glob
+        args = glob.glob("*.py")
+        args.sort()
+    map(testFile, args)
+    sys.exit(_numFailed != 0)
+
+if __name__ == '__main__':
+    test()