pdfbuilder.py 文件源码

def init_math(app):
    """
        This is a dummy math extension.

        It's a hack, but if you want math in a PDF via pdfbuilder, and don't want to
        enable pngmath or jsmath, then enable this one.

        :copyright: Copyright 2007-2009 by the Sphinx team, see AUTHORS.
        :license: BSD, see LICENSE for details.
    """
    from sphinx.errors import SphinxError
    try:
        # Sphinx 0.6.4 and later
        from sphinx.ext.mathbase import setup_math as mathbase_setup
    except ImportError:
        try:
            # Sphinx 0.6.3
            from sphinx.ext.mathbase import setup as mathbase_setup
        except ImportError, e:
            log.error('Error importing sphinx math extension: %s', e)

    class MathExtError(SphinxError):
        category = 'Math extension error'


    def html_visit_math(self, node):
        self.body.append(node['latex'])
        raise nodes.SkipNode

    def html_visit_displaymath(self, node):
        self.body.append(node['latex'])
        raise nodes.SkipNode

    mathbase_setup(app, (html_visit_math, None), (html_visit_displaymath, None))