# highlight.py - highlight extension implementation file # # Copyright 2007-2009 Adam Hupp 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') def pygmentize(field, fctx, style, tmpl): # append a to the syntax highlighting css old_header = ''.join(tmpl('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: # 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')] colorized = colorized[colorized.find('
')+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