--- a/eric6/ThirdParty/Pygments/pygments/cmdline.py Tue Apr 20 19:47:39 2021 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,582 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
- pygments.cmdline
- ~~~~~~~~~~~~~~~~
-
- Command line interface.
-
- :copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS.
- :license: BSD, see LICENSE for details.
-"""
-
-import os
-import sys
-import getopt
-from textwrap import dedent
-
-from pygments import __version__, highlight
-from pygments.util import ClassNotFound, OptionError, docstring_headline, \
- guess_decode, guess_decode_from_terminal, terminal_encoding, \
- UnclosingTextIOWrapper
-from pygments.lexers import get_all_lexers, get_lexer_by_name, guess_lexer, \
- load_lexer_from_file, get_lexer_for_filename, find_lexer_class_for_filename
-from pygments.lexers.special import TextLexer
-from pygments.formatters.latex import LatexEmbeddedLexer, LatexFormatter
-from pygments.formatters import get_all_formatters, get_formatter_by_name, \
- load_formatter_from_file, get_formatter_for_filename, find_formatter_class
-from pygments.formatters.terminal import TerminalFormatter
-from pygments.formatters.terminal256 import Terminal256Formatter
-from pygments.filters import get_all_filters, find_filter_class
-from pygments.styles import get_all_styles, get_style_by_name
-
-
-USAGE = """\
-Usage: %s [-l <lexer> | -g] [-F <filter>[:<options>]] [-f <formatter>]
- [-O <options>] [-P <option=value>] [-s] [-v] [-x] [-o <outfile>] [<infile>]
-
- %s -S <style> -f <formatter> [-a <arg>] [-O <options>] [-P <option=value>]
- %s -L [<which> ...]
- %s -N <filename>
- %s -H <type> <name>
- %s -h | -V
-
-Highlight the input file and write the result to <outfile>.
-
-If no input file is given, use stdin, if -o is not given, use stdout.
-
-If -s is passed, lexing will be done in "streaming" mode, reading and
-highlighting one line at a time. This will only work properly with
-lexers that have no constructs spanning multiple lines!
-
-<lexer> is a lexer name (query all lexer names with -L). If -l is not
-given, the lexer is guessed from the extension of the input file name
-(this obviously doesn't work if the input is stdin). If -g is passed,
-attempt to guess the lexer from the file contents, or pass through as
-plain text if this fails (this can work for stdin).
-
-Likewise, <formatter> is a formatter name, and will be guessed from
-the extension of the output file name. If no output file is given,
-the terminal formatter will be used by default.
-
-The additional option -x allows custom lexers and formatters to be
-loaded from a .py file relative to the current working directory. For
-example, ``-l ./customlexer.py -x``. By default, this option expects a
-file with a class named CustomLexer or CustomFormatter; you can also
-specify your own class name with a colon (``-l ./lexer.py:MyLexer``).
-Users should be very careful not to use this option with untrusted files,
-because it will import and run them.
-
-With the -O option, you can give the lexer and formatter a comma-
-separated list of options, e.g. ``-O bg=light,python=cool``.
-
-The -P option adds lexer and formatter options like the -O option, but
-you can only give one option per -P. That way, the option value may
-contain commas and equals signs, which it can't with -O, e.g.
-``-P "heading=Pygments, the Python highlighter".
-
-With the -F option, you can add filters to the token stream, you can
-give options in the same way as for -O after a colon (note: there must
-not be spaces around the colon).
-
-The -O, -P and -F options can be given multiple times.
-
-With the -S option, print out style definitions for style <style>
-for formatter <formatter>. The argument given by -a is formatter
-dependent.
-
-The -L option lists lexers, formatters, styles or filters -- set
-`which` to the thing you want to list (e.g. "styles"), or omit it to
-list everything.
-
-The -N option guesses and prints out a lexer name based solely on
-the given filename. It does not take input or highlight anything.
-If no specific lexer can be determined "text" is returned.
-
-The -H option prints detailed help for the object <name> of type <type>,
-where <type> is one of "lexer", "formatter" or "filter".
-
-The -s option processes lines one at a time until EOF, rather than
-waiting to process the entire file. This only works for stdin, and
-is intended for streaming input such as you get from 'tail -f'.
-Example usage: "tail -f sql.log | pygmentize -s -l sql"
-
-The -v option prints a detailed traceback on unhandled exceptions,
-which is useful for debugging and bug reports.
-
-The -h option prints this help.
-The -V option prints the package version.
-"""
-
-
-def _parse_options(o_strs):
- opts = {}
- if not o_strs:
- return opts
- for o_str in o_strs:
- if not o_str.strip():
- continue
- o_args = o_str.split(',')
- for o_arg in o_args:
- o_arg = o_arg.strip()
- try:
- o_key, o_val = o_arg.split('=', 1)
- o_key = o_key.strip()
- o_val = o_val.strip()
- except ValueError:
- opts[o_arg] = True
- else:
- opts[o_key] = o_val
- return opts
-
-
-def _parse_filters(f_strs):
- filters = []
- if not f_strs:
- return filters
- for f_str in f_strs:
- if ':' in f_str:
- fname, fopts = f_str.split(':', 1)
- filters.append((fname, _parse_options([fopts])))
- else:
- filters.append((f_str, {}))
- return filters
-
-
-def _print_help(what, name):
- try:
- if what == 'lexer':
- cls = get_lexer_by_name(name)
- print("Help on the %s lexer:" % cls.name)
- print(dedent(cls.__doc__))
- elif what == 'formatter':
- cls = find_formatter_class(name)
- print("Help on the %s formatter:" % cls.name)
- print(dedent(cls.__doc__))
- elif what == 'filter':
- cls = find_filter_class(name)
- print("Help on the %s filter:" % name)
- print(dedent(cls.__doc__))
- return 0
- except (AttributeError, ValueError):
- print("%s not found!" % what, file=sys.stderr)
- return 1
-
-
-def _print_list(what):
- if what == 'lexer':
- print()
- print("Lexers:")
- print("~~~~~~~")
-
- info = []
- for fullname, names, exts, _ in get_all_lexers():
- tup = (', '.join(names)+':', fullname,
- exts and '(filenames ' + ', '.join(exts) + ')' or '')
- info.append(tup)
- info.sort()
- for i in info:
- print(('* %s\n %s %s') % i)
-
- elif what == 'formatter':
- print()
- print("Formatters:")
- print("~~~~~~~~~~~")
-
- info = []
- for cls in get_all_formatters():
- doc = docstring_headline(cls)
- tup = (', '.join(cls.aliases) + ':', doc, cls.filenames and
- '(filenames ' + ', '.join(cls.filenames) + ')' or '')
- info.append(tup)
- info.sort()
- for i in info:
- print(('* %s\n %s %s') % i)
-
- elif what == 'filter':
- print()
- print("Filters:")
- print("~~~~~~~~")
-
- for name in get_all_filters():
- cls = find_filter_class(name)
- print("* " + name + ':')
- print(" %s" % docstring_headline(cls))
-
- elif what == 'style':
- print()
- print("Styles:")
- print("~~~~~~~")
-
- for name in get_all_styles():
- cls = get_style_by_name(name)
- print("* " + name + ':')
- print(" %s" % docstring_headline(cls))
-
-
-def main_inner(popts, args, usage):
- opts = {}
- O_opts = []
- P_opts = []
- F_opts = []
- for opt, arg in popts:
- if opt == '-O':
- O_opts.append(arg)
- elif opt == '-P':
- P_opts.append(arg)
- elif opt == '-F':
- F_opts.append(arg)
- opts[opt] = arg
-
- if opts.pop('-h', None) is not None:
- print(usage)
- return 0
-
- if opts.pop('-V', None) is not None:
- print('Pygments version %s, (c) 2006-2021 by Georg Brandl.' % __version__)
- return 0
-
- # handle ``pygmentize -L``
- L_opt = opts.pop('-L', None)
- if L_opt is not None:
- if opts:
- print(usage, file=sys.stderr)
- return 2
-
- # print version
- main(['', '-V'])
- if not args:
- args = ['lexer', 'formatter', 'filter', 'style']
- for arg in args:
- _print_list(arg.rstrip('s'))
- return 0
-
- # handle ``pygmentize -H``
- H_opt = opts.pop('-H', None)
- if H_opt is not None:
- if opts or len(args) != 2:
- print(usage, file=sys.stderr)
- return 2
-
- what, name = args # pylint: disable=unbalanced-tuple-unpacking
- if what not in ('lexer', 'formatter', 'filter'):
- print(usage, file=sys.stderr)
- return 2
-
- return _print_help(what, name)
-
- # parse -O options
- parsed_opts = _parse_options(O_opts)
- opts.pop('-O', None)
-
- # parse -P options
- for p_opt in P_opts:
- try:
- name, value = p_opt.split('=', 1)
- except ValueError:
- parsed_opts[p_opt] = True
- else:
- parsed_opts[name] = value
- opts.pop('-P', None)
-
- # encodings
- inencoding = parsed_opts.get('inencoding', parsed_opts.get('encoding'))
- outencoding = parsed_opts.get('outencoding', parsed_opts.get('encoding'))
-
- # handle ``pygmentize -N``
- infn = opts.pop('-N', None)
- if infn is not None:
- lexer = find_lexer_class_for_filename(infn)
- if lexer is None:
- lexer = TextLexer
-
- print(lexer.aliases[0])
- return 0
-
- # handle ``pygmentize -S``
- S_opt = opts.pop('-S', None)
- a_opt = opts.pop('-a', None)
- if S_opt is not None:
- f_opt = opts.pop('-f', None)
- if not f_opt:
- print(usage, file=sys.stderr)
- return 2
- if opts or args:
- print(usage, file=sys.stderr)
- return 2
-
- try:
- parsed_opts['style'] = S_opt
- fmter = get_formatter_by_name(f_opt, **parsed_opts)
- except ClassNotFound as err:
- print(err, file=sys.stderr)
- return 1
-
- print(fmter.get_style_defs(a_opt or ''))
- return 0
-
- # if no -S is given, -a is not allowed
- if a_opt is not None:
- print(usage, file=sys.stderr)
- return 2
-
- # parse -F options
- F_opts = _parse_filters(F_opts)
- opts.pop('-F', None)
-
- allow_custom_lexer_formatter = False
- # -x: allow custom (eXternal) lexers and formatters
- if opts.pop('-x', None) is not None:
- allow_custom_lexer_formatter = True
-
- # select lexer
- lexer = None
-
- # given by name?
- lexername = opts.pop('-l', None)
- if lexername:
- # custom lexer, located relative to user's cwd
- if allow_custom_lexer_formatter and '.py' in lexername:
- try:
- filename = None
- name = None
- if ':' in lexername:
- filename, name = lexername.rsplit(':', 1)
-
- if '.py' in name:
- # This can happen on Windows: If the lexername is
- # C:\lexer.py -- return to normal load path in that case
- name = None
-
- if filename and name:
- lexer = load_lexer_from_file(filename, name,
- **parsed_opts)
- else:
- lexer = load_lexer_from_file(lexername, **parsed_opts)
- except ClassNotFound as err:
- print('Error:', err, file=sys.stderr)
- return 1
- else:
- try:
- lexer = get_lexer_by_name(lexername, **parsed_opts)
- except (OptionError, ClassNotFound) as err:
- print('Error:', err, file=sys.stderr)
- return 1
-
- # read input code
- code = None
-
- if args:
- if len(args) > 1:
- print(usage, file=sys.stderr)
- return 2
-
- if '-s' in opts:
- print('Error: -s option not usable when input file specified',
- file=sys.stderr)
- return 2
-
- infn = args[0]
- try:
- with open(infn, 'rb') as infp:
- code = infp.read()
- except Exception as err:
- print('Error: cannot read infile:', err, file=sys.stderr)
- return 1
- if not inencoding:
- code, inencoding = guess_decode(code)
-
- # do we have to guess the lexer?
- if not lexer:
- try:
- lexer = get_lexer_for_filename(infn, code, **parsed_opts)
- except ClassNotFound as err:
- if '-g' in opts:
- try:
- lexer = guess_lexer(code, **parsed_opts)
- except ClassNotFound:
- lexer = TextLexer(**parsed_opts)
- else:
- print('Error:', err, file=sys.stderr)
- return 1
- except OptionError as err:
- print('Error:', err, file=sys.stderr)
- return 1
-
- elif '-s' not in opts: # treat stdin as full file (-s support is later)
- # read code from terminal, always in binary mode since we want to
- # decode ourselves and be tolerant with it
- code = sys.stdin.buffer.read() # use .buffer to get a binary stream
- if not inencoding:
- code, inencoding = guess_decode_from_terminal(code, sys.stdin)
- # else the lexer will do the decoding
- if not lexer:
- try:
- lexer = guess_lexer(code, **parsed_opts)
- except ClassNotFound:
- lexer = TextLexer(**parsed_opts)
-
- else: # -s option needs a lexer with -l
- if not lexer:
- print('Error: when using -s a lexer has to be selected with -l',
- file=sys.stderr)
- return 2
-
- # process filters
- for fname, fopts in F_opts:
- try:
- lexer.add_filter(fname, **fopts)
- except ClassNotFound as err:
- print('Error:', err, file=sys.stderr)
- return 1
-
- # select formatter
- outfn = opts.pop('-o', None)
- fmter = opts.pop('-f', None)
- if fmter:
- # custom formatter, located relative to user's cwd
- if allow_custom_lexer_formatter and '.py' in fmter:
- try:
- filename = None
- name = None
- if ':' in fmter:
- # Same logic as above for custom lexer
- filename, name = fmter.rsplit(':', 1)
-
- if '.py' in name:
- name = None
-
- if filename and name:
- fmter = load_formatter_from_file(filename, name,
- **parsed_opts)
- else:
- fmter = load_formatter_from_file(fmter, **parsed_opts)
- except ClassNotFound as err:
- print('Error:', err, file=sys.stderr)
- return 1
- else:
- try:
- fmter = get_formatter_by_name(fmter, **parsed_opts)
- except (OptionError, ClassNotFound) as err:
- print('Error:', err, file=sys.stderr)
- return 1
-
- if outfn:
- if not fmter:
- try:
- fmter = get_formatter_for_filename(outfn, **parsed_opts)
- except (OptionError, ClassNotFound) as err:
- print('Error:', err, file=sys.stderr)
- return 1
- try:
- outfile = open(outfn, 'wb')
- except Exception as err:
- print('Error: cannot open outfile:', err, file=sys.stderr)
- return 1
- else:
- if not fmter:
- if '256' in os.environ.get('TERM', ''):
- fmter = Terminal256Formatter(**parsed_opts)
- else:
- fmter = TerminalFormatter(**parsed_opts)
- outfile = sys.stdout.buffer
-
- # determine output encoding if not explicitly selected
- if not outencoding:
- if outfn:
- # output file? use lexer encoding for now (can still be None)
- fmter.encoding = inencoding
- else:
- # else use terminal encoding
- fmter.encoding = terminal_encoding(sys.stdout)
-
- # provide coloring under Windows, if possible
- if not outfn and sys.platform in ('win32', 'cygwin') and \
- fmter.name in ('Terminal', 'Terminal256'): # pragma: no cover
- # unfortunately colorama doesn't support binary streams on Py3
- outfile = UnclosingTextIOWrapper(outfile, encoding=fmter.encoding)
- fmter.encoding = None
- try:
- import colorama.initialise
- except ImportError:
- pass
- else:
- outfile = colorama.initialise.wrap_stream(
- outfile, convert=None, strip=None, autoreset=False, wrap=True)
-
- # When using the LaTeX formatter and the option `escapeinside` is
- # specified, we need a special lexer which collects escaped text
- # before running the chosen language lexer.
- escapeinside = parsed_opts.get('escapeinside', '')
- if len(escapeinside) == 2 and isinstance(fmter, LatexFormatter):
- left = escapeinside[0]
- right = escapeinside[1]
- lexer = LatexEmbeddedLexer(left, right, lexer)
-
- # ... and do it!
- if '-s' not in opts:
- # process whole input as per normal...
- try:
- highlight(code, lexer, fmter, outfile)
- finally:
- if outfn:
- outfile.close()
- return 0
- else:
- # line by line processing of stdin (eg: for 'tail -f')...
- try:
- while 1:
- line = sys.stdin.buffer.readline()
- if not line:
- break
- if not inencoding:
- line = guess_decode_from_terminal(line, sys.stdin)[0]
- highlight(line, lexer, fmter, outfile)
- if hasattr(outfile, 'flush'):
- outfile.flush()
- return 0
- except KeyboardInterrupt: # pragma: no cover
- return 0
- finally:
- if outfn:
- outfile.close()
-
-
-def main(args=sys.argv):
- """
- Main command line entry point.
- """
- usage = USAGE % ((args[0],) * 6)
-
- try:
- popts, args = getopt.getopt(args[1:], "l:f:F:o:O:P:LS:a:N:vhVHgsx")
- except getopt.GetoptError:
- print(usage, file=sys.stderr)
- return 2
-
- try:
- return main_inner(popts, args, usage)
- except Exception:
- if '-v' in dict(popts):
- print(file=sys.stderr)
- print('*' * 65, file=sys.stderr)
- print('An unhandled exception occurred while highlighting.',
- file=sys.stderr)
- print('Please report the whole traceback to the issue tracker at',
- file=sys.stderr)
- print('<https://github.com/pygments/pygments/issues>.',
- file=sys.stderr)
- print('*' * 65, file=sys.stderr)
- print(file=sys.stderr)
- raise
- import traceback
- info = traceback.format_exception(*sys.exc_info())
- msg = info[-1].strip()
- if len(info) >= 3:
- # extract relevant file and position info
- msg += '\n (f%s)' % info[-2].split('\n')[0].strip()[1:]
- print(file=sys.stderr)
- print('*** Error while highlighting:', file=sys.stderr)
- print(msg, file=sys.stderr)
- print('*** If this is a bug you want to report, please rerun with -v.',
- file=sys.stderr)
- return 1
