Mercurial > hg
view hgext/highlight/highlight.py @ 29841:d5883fd055c6
extensions: change magic "shipped with hg" string
I've caught multiple extensions in the wild lying about being
'internal', so it's time to move the goalposts on people. Goalpost
moving will continue until third party extensions stop trying to
defeat the system.
author | Augie Fackler <augie@google.com> |
---|---|
date | Tue, 23 Aug 2016 11:26:08 -0400 |
parents | 6a98f9408a50 |
children | 661025fd3e1c |
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# highlight.py - highlight extension implementation file # # Copyright 2007-2009 Adam Hupp <adam@hupp.org> and others # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. # # The original module was split in an interface and an implementation # file to defer pygments loading and speedup extension setup. from __future__ import absolute_import import pygments import pygments.formatters import pygments.lexers import pygments.util from mercurial import demandimport demandimport.ignore.extend(['pkgutil', 'pkg_resources', '__main__']) from mercurial import ( encoding, util, ) highlight = pygments.highlight ClassNotFound = pygments.util.ClassNotFound guess_lexer = pygments.lexers.guess_lexer guess_lexer_for_filename = pygments.lexers.guess_lexer_for_filename TextLexer = pygments.lexers.TextLexer HtmlFormatter = pygments.formatters.HtmlFormatter SYNTAX_CSS = ('\n<link rel="stylesheet" href="{url}highlightcss" ' 'type="text/css" />') def pygmentize(field, fctx, style, tmpl, guessfilenameonly=False): # append a <link ...> to the syntax highlighting css old_header = tmpl.load('header') if SYNTAX_CSS not in old_header: new_header = old_header + SYNTAX_CSS tmpl.cache['header'] = new_header text = fctx.data() if util.binary(text): return # str.splitlines() != unicode.splitlines() because "reasons" for c in "\x0c\x1c\x1d\x1e": if c in text: text = text.replace(c, '') # Pygments is best used with Unicode strings: # <http://pygments.org/docs/unicode/> text = text.decode(encoding.encoding, 'replace') # To get multi-line strings right, we can't format line-by-line try: lexer = guess_lexer_for_filename(fctx.path(), text[:1024], stripnl=False) except (ClassNotFound, ValueError): # guess_lexer will return a lexer if *any* lexer matches. There is # no way to specify a minimum match score. This can give a high rate of # false positives on files with an unknown filename pattern. if guessfilenameonly: return try: lexer = guess_lexer(text[:1024], stripnl=False) except (ClassNotFound, ValueError): # Don't highlight unknown files return # Don't highlight text files if isinstance(lexer, TextLexer): return formatter = HtmlFormatter(nowrap=True, style=style) colorized = highlight(text, lexer, formatter) coloriter = (s.encode(encoding.encoding, 'replace') for s in colorized.splitlines()) tmpl.filters['colorize'] = lambda x: next(coloriter) oldl = tmpl.cache[field] newl = oldl.replace('line|escape', 'line|colorize') tmpl.cache[field] = newl