| """ |
| COMMAND-LINE SPECIFIC STUFF |
| ============================================================================= |
| |
| """ |
| |
| import sys |
| import optparse |
| import codecs |
| import warnings |
| import markdown |
| try: |
| import yaml |
| except ImportError: # pragma: no cover |
| import json as yaml |
| |
| import logging |
| from logging import DEBUG, WARNING, CRITICAL |
| |
| logger = logging.getLogger('MARKDOWN') |
| |
| |
| def parse_options(args=None, values=None): |
| """ |
| Define and parse `optparse` options for command-line usage. |
| """ |
| usage = """%prog [options] [INPUTFILE] |
| (STDIN is assumed if no INPUTFILE is given)""" |
| desc = "A Python implementation of John Gruber's Markdown. " \ |
| "https://pythonhosted.org/Markdown/" |
| ver = "%%prog %s" % markdown.version |
| |
| parser = optparse.OptionParser(usage=usage, description=desc, version=ver) |
| parser.add_option("-f", "--file", dest="filename", default=None, |
| help="Write output to OUTPUT_FILE. Defaults to STDOUT.", |
| metavar="OUTPUT_FILE") |
| parser.add_option("-e", "--encoding", dest="encoding", |
| help="Encoding for input and output files.",) |
| parser.add_option("-s", "--safe", dest="safe", default=False, |
| metavar="SAFE_MODE", |
| help="Deprecated! 'replace', 'remove' or 'escape' HTML " |
| "tags in input") |
| parser.add_option("-o", "--output_format", dest="output_format", |
| default='xhtml1', metavar="OUTPUT_FORMAT", |
| help="'xhtml1' (default), 'html4' or 'html5'.") |
| parser.add_option("-n", "--no_lazy_ol", dest="lazy_ol", |
| action='store_false', default=True, |
| help="Observe number of first item of ordered lists.") |
| parser.add_option("-x", "--extension", action="append", dest="extensions", |
| help="Load extension EXTENSION.", metavar="EXTENSION") |
| parser.add_option("-c", "--extension_configs", |
| dest="configfile", default=None, |
| help="Read extension configurations from CONFIG_FILE. " |
| "CONFIG_FILE must be of JSON or YAML format. YAML" |
| "format requires that a python YAML library be " |
| "installed. The parsed JSON or YAML must result in a " |
| "python dictionary which would be accepted by the " |
| "'extension_configs' keyword on the markdown.Markdown " |
| "class. The extensions must also be loaded with the " |
| "`--extension` option.", |
| metavar="CONFIG_FILE") |
| parser.add_option("-q", "--quiet", default=CRITICAL, |
| action="store_const", const=CRITICAL+10, dest="verbose", |
| help="Suppress all warnings.") |
| parser.add_option("-v", "--verbose", |
| action="store_const", const=WARNING, dest="verbose", |
| help="Print all warnings.") |
| parser.add_option("--noisy", |
| action="store_const", const=DEBUG, dest="verbose", |
| help="Print debug messages.") |
| |
| (options, args) = parser.parse_args(args, values) |
| |
| if len(args) == 0: |
| input_file = None |
| else: |
| input_file = args[0] |
| |
| if not options.extensions: |
| options.extensions = [] |
| |
| extension_configs = {} |
| if options.configfile: |
| with codecs.open( |
| options.configfile, mode="r", encoding=options.encoding |
| ) as fp: |
| try: |
| extension_configs = yaml.load(fp) |
| except Exception as e: |
| message = "Failed parsing extension config file: %s" % \ |
| options.configfile |
| e.args = (message,) + e.args[1:] |
| raise |
| |
| opts = { |
| 'input': input_file, |
| 'output': options.filename, |
| 'extensions': options.extensions, |
| 'extension_configs': extension_configs, |
| 'encoding': options.encoding, |
| 'output_format': options.output_format, |
| 'lazy_ol': options.lazy_ol |
| } |
| |
| if options.safe: |
| # Avoid deprecation warning if user didn't set option |
| opts['safe_mode'] = options.safe |
| |
| return opts, options.verbose |
| |
| |
| def run(): # pragma: no cover |
| """Run Markdown from the command line.""" |
| |
| # Parse options and adjust logging level if necessary |
| options, logging_level = parse_options() |
| if not options: |
| sys.exit(2) |
| logger.setLevel(logging_level) |
| console_handler = logging.StreamHandler() |
| logger.addHandler(console_handler) |
| if logging_level <= WARNING: |
| # Ensure deprecation warnings get displayed |
| warnings.filterwarnings('default') |
| logging.captureWarnings(True) |
| warn_logger = logging.getLogger('py.warnings') |
| warn_logger.addHandler(console_handler) |
| |
| # Run |
| markdown.markdownFromFile(**options) |
| |
| |
| if __name__ == '__main__': # pragma: no cover |
| # Support running module as a commandline command. |
| # Python 2.7 & 3.x do: `python -m markdown [options] [args]`. |
| run() |