| 1 | n/a | #! /usr/bin/env python3 |
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| 2 | n/a | |
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| 3 | n/a | """finddiv - a grep-like tool that looks for division operators. |
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| 4 | n/a | |
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| 5 | n/a | Usage: finddiv [-l] file_or_directory ... |
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| 6 | n/a | |
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| 7 | n/a | For directory arguments, all files in the directory whose name ends in |
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| 8 | n/a | .py are processed, and subdirectories are processed recursively. |
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| 9 | n/a | |
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| 10 | n/a | This actually tokenizes the files to avoid false hits in comments or |
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| 11 | n/a | strings literals. |
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| 12 | n/a | |
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| 13 | n/a | By default, this prints all lines containing a / or /= operator, in |
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| 14 | n/a | grep -n style. With the -l option specified, it prints the filename |
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| 15 | n/a | of files that contain at least one / or /= operator. |
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| 16 | n/a | """ |
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| 17 | n/a | |
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| 18 | n/a | import os |
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| 19 | n/a | import sys |
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| 20 | n/a | import getopt |
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| 21 | n/a | import tokenize |
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| 22 | n/a | |
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| 23 | n/a | def main(): |
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| 24 | n/a | try: |
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| 25 | n/a | opts, args = getopt.getopt(sys.argv[1:], "lh") |
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| 26 | n/a | except getopt.error as msg: |
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| 27 | n/a | usage(msg) |
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| 28 | n/a | return 2 |
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| 29 | n/a | if not args: |
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| 30 | n/a | usage("at least one file argument is required") |
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| 31 | n/a | return 2 |
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| 32 | n/a | listnames = 0 |
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| 33 | n/a | for o, a in opts: |
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| 34 | n/a | if o == "-h": |
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| 35 | n/a | print(__doc__) |
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| 36 | n/a | return |
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| 37 | n/a | if o == "-l": |
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| 38 | n/a | listnames = 1 |
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| 39 | n/a | exit = None |
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| 40 | n/a | for filename in args: |
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| 41 | n/a | x = process(filename, listnames) |
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| 42 | n/a | exit = exit or x |
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| 43 | n/a | return exit |
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| 44 | n/a | |
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| 45 | n/a | def usage(msg): |
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| 46 | n/a | sys.stderr.write("%s: %s\n" % (sys.argv[0], msg)) |
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| 47 | n/a | sys.stderr.write("Usage: %s [-l] file ...\n" % sys.argv[0]) |
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| 48 | n/a | sys.stderr.write("Try `%s -h' for more information.\n" % sys.argv[0]) |
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| 49 | n/a | |
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| 50 | n/a | def process(filename, listnames): |
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| 51 | n/a | if os.path.isdir(filename): |
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| 52 | n/a | return processdir(filename, listnames) |
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| 53 | n/a | try: |
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| 54 | n/a | fp = open(filename) |
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| 55 | n/a | except IOError as msg: |
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| 56 | n/a | sys.stderr.write("Can't open: %s\n" % msg) |
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| 57 | n/a | return 1 |
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| 58 | n/a | g = tokenize.generate_tokens(fp.readline) |
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| 59 | n/a | lastrow = None |
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| 60 | n/a | for type, token, (row, col), end, line in g: |
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| 61 | n/a | if token in ("/", "/="): |
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| 62 | n/a | if listnames: |
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| 63 | n/a | print(filename) |
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| 64 | n/a | break |
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| 65 | n/a | if row != lastrow: |
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| 66 | n/a | lastrow = row |
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| 67 | n/a | print("%s:%d:%s" % (filename, row, line), end=' ') |
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| 68 | n/a | fp.close() |
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| 69 | n/a | |
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| 70 | n/a | def processdir(dir, listnames): |
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| 71 | n/a | try: |
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| 72 | n/a | names = os.listdir(dir) |
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| 73 | n/a | except OSError as msg: |
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| 74 | n/a | sys.stderr.write("Can't list directory: %s\n" % dir) |
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| 75 | n/a | return 1 |
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| 76 | n/a | files = [] |
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| 77 | n/a | for name in names: |
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| 78 | n/a | fn = os.path.join(dir, name) |
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| 79 | n/a | if os.path.normcase(fn).endswith(".py") or os.path.isdir(fn): |
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| 80 | n/a | files.append(fn) |
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| 81 | n/a | files.sort(key=os.path.normcase) |
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| 82 | n/a | exit = None |
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| 83 | n/a | for fn in files: |
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| 84 | n/a | x = process(fn, listnames) |
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| 85 | n/a | exit = exit or x |
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| 86 | n/a | return exit |
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| 87 | n/a | |
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| 88 | n/a | if __name__ == "__main__": |
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| 89 | n/a | sys.exit(main()) |
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