#!/usr/bin/python
# -*- coding: UTF-8 -*-
#
# Copyright (c) 2006 Tarek Ziadé <tarek@ziade.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
# $Id: $
""" Setup pygment extension for reST
"""
from docutils import nodes
from docutils.parsers.rst import directives
from pygments import highlight
from pygments.lexers import get_lexer_by_name
from pygments.formatters import HtmlFormatter

pygments_formatter = HtmlFormatter()

def pygments_directive(name, arguments, options, content, lineno,
                       content_offset, block_text, state, state_machine):
    try:
        lexer = get_lexer_by_name(arguments[0])
    except ValueError:
        # no lexer found - use the text one instead of an exception
        lexer = get_lexer_by_name('text')
    parsed = highlight(u'\n'.join(content), lexer, pygments_formatter)
    return [nodes.raw('', parsed, format='html')]
pygments_directive.arguments = (1, 0, 1)
pygments_directive.content = 1
directives.register_directive('sourcecode', pygments_directive)