Mercurial > hg
view hgext/highlight/highlight.py @ 13847:b0e9b36dcfbc stable
Added signature for changeset b032bec2c0a6
author | Matt Mackall <mpm@selenic.com> |
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date | Fri, 01 Apr 2011 12:42:02 -0500 |
parents | d1f4657f55e4 |
children | b35e3364f94a |
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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 mercurial import demandimport demandimport.ignore.extend(['pkgutil', 'pkg_resources', '__main__']) from mercurial import util, encoding from pygments import highlight from pygments.util import ClassNotFound from pygments.lexers import guess_lexer, guess_lexer_for_filename, TextLexer from pygments.formatters import HtmlFormatter SYNTAX_CSS = ('\n<link rel="stylesheet" href="{url}highlightcss" ' 'type="text/css" />') def pygmentize(field, fctx, style, tmpl): # 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 # 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]) except (ClassNotFound, ValueError): try: lexer = guess_lexer(text[:1024]) except (ClassNotFound, ValueError): lexer = TextLexer() formatter = HtmlFormatter(style=style) colorized = highlight(text, lexer, formatter) # strip wrapping div colorized = colorized[:colorized.find('\n</pre>')] colorized = colorized[colorized.find('<pre>')+5:] coloriter = (s.encode(encoding.encoding, 'replace') for s in colorized.splitlines()) tmpl.filters['colorize'] = lambda x: coloriter.next() oldl = tmpl.cache[field] newl = oldl.replace('line|escape', 'line|colorize') tmpl.cache[field] = newl