| #!/usr/bin/env python |
| """ |
| Script which takes one or more file paths and reports on their detected |
| encodings |
| |
| Example:: |
| |
| % chardetect somefile someotherfile |
| somefile: windows-1252 with confidence 0.5 |
| someotherfile: ascii with confidence 1.0 |
| |
| If no paths are provided, it takes its input from stdin. |
| |
| """ |
| |
| from __future__ import absolute_import, print_function, unicode_literals |
| |
| import argparse |
| import sys |
| from io import open |
| |
| from chardet import __version__ |
| from chardet.universaldetector import UniversalDetector |
| |
| |
| def description_of(lines, name='stdin'): |
| """ |
| Return a string describing the probable encoding of a file or |
| list of strings. |
| |
| :param lines: The lines to get the encoding of. |
| :type lines: Iterable of bytes |
| :param name: Name of file or collection of lines |
| :type name: str |
| """ |
| u = UniversalDetector() |
| for line in lines: |
| u.feed(line) |
| u.close() |
| result = u.result |
| if result['encoding']: |
| return '{0}: {1} with confidence {2}'.format(name, result['encoding'], |
| result['confidence']) |
| else: |
| return '{0}: no result'.format(name) |
| |
| |
| def main(argv=None): |
| ''' |
| Handles command line arguments and gets things started. |
| |
| :param argv: List of arguments, as if specified on the command-line. |
| If None, ``sys.argv[1:]`` is used instead. |
| :type argv: list of str |
| ''' |
| # Get command line arguments |
| parser = argparse.ArgumentParser( |
| description="Takes one or more file paths and reports their detected \ |
| encodings", |
| formatter_class=argparse.ArgumentDefaultsHelpFormatter, |
| conflict_handler='resolve') |
| parser.add_argument('input', |
| help='File whose encoding we would like to determine.', |
| type=argparse.FileType('rb'), nargs='*', |
| default=[sys.stdin]) |
| parser.add_argument('--version', action='version', |
| version='%(prog)s {0}'.format(__version__)) |
| args = parser.parse_args(argv) |
| |
| for f in args.input: |
| if f.isatty(): |
| print("You are running chardetect interactively. Press " + |
| "CTRL-D twice at the start of a blank line to signal the " + |
| "end of your input. If you want help, run chardetect " + |
| "--help\n", file=sys.stderr) |
| print(description_of(f, f.name)) |
| |
| |
| if __name__ == '__main__': |
| main() |
