Varia's website
https://varia.zone
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
575 lines
19 KiB
575 lines
19 KiB
# -*- coding: utf-8 -*-
|
|
"""
|
|
pygments.cmdline
|
|
~~~~~~~~~~~~~~~~
|
|
|
|
Command line interface.
|
|
|
|
:copyright: Copyright 2006-2019 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) 2006-2019 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...
|
|
highlight(code, lexer, fmter, outfile)
|
|
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
|
|
|
|
|
|
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
|
|
|