keyword: Add pristine from Python-3.3.3 tarball.

Author: pfalcon

keyword/keyword.py

@@ -0,0 +1,93 @@
+#! /usr/bin/env python3
+
+"""Keywords (from "graminit.c")
+
+This file is automatically generated; please don't muck it up!
+
+To update the symbols in this file, 'cd' to the top directory of
+the python source tree after building the interpreter and run:
+
+    ./python Lib/keyword.py
+"""
+
+__all__ = ["iskeyword", "kwlist"]
+
+kwlist = [
+#--start keywords--
+        'False',
+        'None',
+        'True',
+        'and',
+        'as',
+        'assert',
+        'break',
+        'class',
+        'continue',
+        'def',
+        'del',
+        'elif',
+        'else',
+        'except',
+        'finally',
+        'for',
+        'from',
+        'global',
+        'if',
+        'import',
+        'in',
+        'is',
+        'lambda',
+        'nonlocal',
+        'not',
+        'or',
+        'pass',
+        'raise',
+        'return',
+        'try',
+        'while',
+        'with',
+        'yield',
+#--end keywords--
+        ]
+
+iskeyword = frozenset(kwlist).__contains__
+
+def main():
+    import sys, re
+
+    args = sys.argv[1:]
+    iptfile = args and args[0] or "Python/graminit.c"
+    if len(args) > 1: optfile = args[1]
+    else: optfile = "Lib/keyword.py"
+
+    # scan the source file for keywords
+    with open(iptfile) as fp:
+        strprog = re.compile('"([^"]+)"')
+        lines = []
+        for line in fp:
+            if '{1, "' in line:
+                match = strprog.search(line)
+                if match:
+                    lines.append("        '" + match.group(1) + "',\n")
+    lines.sort()
+
+    # load the output skeleton from the target
+    with open(optfile) as fp:
+        format = fp.readlines()
+
+    # insert the lines of keywords
+    try:
+        start = format.index("#--start keywords--\n") + 1
+        end = format.index("#--end keywords--\n")
+        format[start:end] = lines
+    except ValueError:
+        sys.stderr.write("target does not contain format markers\n")
+        sys.exit(1)
+
+    # write the output file
+    fp = open(optfile, 'w')
+    fp.write(''.join(format))
+    fp.close()
+
+if __name__ == "__main__":
+    main()