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"""
Pygments
~~~~~~~~
Pygments is a syntax highlighting package written in Python.
It is a generic syntax highlighter for general use in all kinds of software
such as forum systems, wikis or other applications that need to prettify
source code. Highlights are:
* a wide range of common languages and markup formats is supported
* special attention is paid to details, increasing quality by a fair amount
* support for new languages and formats are added easily
* a number of output formats, presently HTML, LaTeX, RTF, SVG, all image
formats that PIL supports, and ANSI sequences
* it is usable as a command-line tool and as a library
* ... and it highlights even Brainfuck!
The `Pygments master branch`_ is installable with ``easy_install Pygments==dev``.
.. _Pygments master branch:
https://github.com/pygments/pygments/archive/master.zip#egg=Pygments-dev
:copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from io import StringIO, BytesIO
__version__ = '2.18.0'
__docformat__ = 'restructuredtext'
__all__ = ['lex', 'format', 'highlight']
def lex(code, lexer):
"""
Lex `code` with the `lexer` (must be a `Lexer` instance)
and return an iterable of tokens. Currently, this only calls
`lexer.get_tokens()`.
"""
try:
return lexer.get_tokens(code)
except TypeError:
# Heuristic to catch a common mistake.
from pygments.lexer import RegexLexer
if isinstance(lexer, type) and issubclass(lexer, RegexLexer):
raise TypeError('lex() argument must be a lexer instance, '
'not a class')
raise
def format(tokens, formatter, outfile=None): # pylint: disable=redefined-builtin
"""
Format ``tokens`` (an iterable of tokens) with the formatter ``formatter``
(a `Formatter` instance).
If ``outfile`` is given and a valid file object (an object with a
``write`` method), the result will be written to it, otherwise it
is returned as a string.
"""
try:
if not outfile:
realoutfile = getattr(formatter, 'encoding', None) and BytesIO() or StringIO()
formatter.format(tokens, realoutfile)
return realoutfile.getvalue()
else:
formatter.format(tokens, outfile)
except TypeError:
# Heuristic to catch a common mistake.
from pygments.formatter import Formatter
if isinstance(formatter, type) and issubclass(formatter, Formatter):
raise TypeError('format() argument must be a formatter instance, '
'not a class')
raise
def highlight(code, lexer, formatter, outfile=None):
"""
This is the most high-level highlighting function. It combines `lex` and
`format` in one function.
"""
return format(lex(code, lexer), formatter, outfile)
|
