From 43db62e2636a456cb78c86efc17c85335f64f1ef Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Sun, 2 Sep 2001 04:43:30 +0000 Subject: A grep-like tool that looks for division operators. --- Tools/scripts/finddiv.py | 89 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100755 Tools/scripts/finddiv.py diff --git a/Tools/scripts/finddiv.py b/Tools/scripts/finddiv.py new file mode 100755 index 0000000..47b6f12 --- /dev/null +++ b/Tools/scripts/finddiv.py @@ -0,0 +1,89 @@ +#! /usr/bin/env python + +"""finddiv - a grep-like tool that looks for division operators. + +Usage: finddiv [-l] file_or_directory ... + +For directory arguments, all files in the directory whose name ends in +.py are processed, and subdirectories are processed recursively. + +This actually tokenizes the files to avoid false hits in comments or +strings literals. + +By default, this prints all lines containing a / or /= operator, in +grep -n style. With the -l option specified, it prints the filename +of files that contain at least one / or /= operator. +""" + +import os +import sys +import getopt +import tokenize + +def main(): + try: + opts, args = getopt.getopt(sys.argv[1:], "lh") + except getopt.error, msg: + usage(msg) + return 2 + if not args: + usage("at least one file argument is required") + return 2 + listnames = 0 + for o, a in opts: + if o == "-h": + print __doc__ + return + if o == "-l": + listnames = 1 + exit = None + for file in args: + x = process(file, listnames) + exit = exit or x + return exit + +def usage(msg): + sys.stderr.write("%s: %s\n" % (sys.argv[0], msg)) + sys.stderr.write("Usage: %s [-l] file ...\n" % sys.argv[0]) + sys.stderr.write("Try `%s -h' for more information.\n" % sys.argv[0]) + +def process(file, listnames): + if os.path.isdir(file): + return processdir(file, listnames) + try: + fp = open(file) + except IOError, msg: + sys.stderr.write("Can't open: %s\n" % msg) + return 1 + g = tokenize.generate_tokens(fp.readline) + lastrow = None + for type, token, (row, col), end, line in g: + if token in ("/", "/="): + if listnames: + print file + break + if row != lastrow: + lastrow = row + print "%s:%d:%s" % (file, row, line), + fp.close() + +def processdir(dir, listnames): + try: + names = os.listdir(dir) + except os.error, msg: + sys.stderr.write("Can't list directory: %s\n" % dir) + return 1 + files = [] + for name in names: + fn = os.path.join(dir, name) + if os.path.normcase(fn).endswith(".py") or os.path.isdir(fn): + files.append(fn) + files.sort(lambda a, b: cmp(os.path.normcase(a), os.path.normcase(b))) + exit = None + for fn in files: + x = process(fn, listnames) + exit = exit or x + return exit + +if __name__ == "__main__": + sys.exit(main()) -- cgit v0.12