8817bb2e |
1 | r"""Command-line tool to validate and pretty-print JSON |
2 | |
3 | Usage:: |
4 | |
5 | $ echo '{"json":"obj"}' | python -m simplejson.tool |
6 | { |
7 | "json": "obj" |
8 | } |
9 | $ echo '{ 1.2:3.4}' | python -m simplejson.tool |
10 | Expecting property name: line 1 column 2 (char 2) |
11 | |
12 | """ |
13 | import sys |
14 | import simplejson |
15 | |
16 | def main(): |
17 | if len(sys.argv) == 1: |
18 | infile = sys.stdin |
19 | outfile = sys.stdout |
20 | elif len(sys.argv) == 2: |
21 | infile = open(sys.argv[1], 'rb') |
22 | outfile = sys.stdout |
23 | elif len(sys.argv) == 3: |
24 | infile = open(sys.argv[1], 'rb') |
25 | outfile = open(sys.argv[2], 'wb') |
26 | else: |
27 | raise SystemExit(sys.argv[0] + " [infile [outfile]]") |
28 | try: |
29 | obj = simplejson.load(infile) |
30 | except ValueError, e: |
31 | raise SystemExit(e) |
32 | simplejson.dump(obj, outfile, sort_keys=True, indent=4) |
33 | outfile.write('\n') |
34 | |
35 | |
36 | if __name__ == '__main__': |
37 | main() |