--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/ThirdParty/Pygments/pygments/cmdline.py Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,573 @@
+# -*- coding: utf-8 -*-
+"""
+ pygments.cmdline
+ ~~~~~~~~~~~~~~~~
+
+ Command line interface.
+
+ :copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
+ :license: BSD, see LICENSE for details.
+"""
+
+from __future__ import print_function
+
+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
+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) 2006-2017 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:
+ if ':' in lexername:
+ filename, name = lexername.rsplit(':', 1)
+ 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
+ if sys.version_info > (3,):
+ # Python 3: we have to use .buffer to get a binary stream
+ code = sys.stdin.buffer.read()
+ else:
+ code = sys.stdin.read()
+ 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:
+ if ':' in fmter:
+ file, fmtername = fmter.rsplit(':', 1)
+ fmter = load_formatter_from_file(file, fmtername,
+ **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)
+ if sys.version_info > (3,):
+ # Python 3: we have to use .buffer to get a binary stream
+ outfile = sys.stdout.buffer
+ else:
+ outfile = sys.stdout
+
+ # 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
+ if sys.version_info > (3,):
+ from pygments.util import UnclosingTextIOWrapper
+ 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...
+ highlight(code, lexer, fmter, outfile)
+ return 0
+ else:
+ # line by line processing of stdin (eg: for 'tail -f')...
+ try:
+ while 1:
+ if sys.version_info > (3,):
+ # Python 3: we have to use .buffer to get a binary stream
+ line = sys.stdin.buffer.readline()
+ else:
+ line = sys.stdin.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
+
+
+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://bitbucket.org/birkenfeld/pygments-main/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
