#
# A pair of directives for inserting content that will only appear in
# either html or latex.
#
from docutils.nodes import Body,Element
from docutils.parsers.rst import directives
class only_base(Body, Element):
def dont_traverse(self, *args, **kwargs):
return []
class html_only(only_base):
pass
class latex_only(only_base):
pass
def run(content, node_class, state, content_offset):
text = '\n'.join(content)
node = node_class(text)
state.nested_parse(content, content_offset, node)
return [node]
def html_only_directive(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
return run(content, html_only, state, content_offset)
def latex_only_directive(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
return run(content, latex_only, state, content_offset)
def builder_inited(app):
if app.builder.name == 'html':
latex_only.traverse = only_base.dont_traverse
else:
html_only.traverse = only_base.dont_traverse
def setup(app):
app.add_directive('htmlonly', html_only_directive, True, (0, 0, 0))
app.add_directive('latexonly', latex_only_directive, True, (0, 0, 0))
app.add_node(html_only)
app.add_node(latex_only)
# This will *really* never see the light of day As it turns out,
# this results in "broken" image nodes since they never get
# processed, so best not to do this.
# app.connect('builder-inited', builder_inited)
# Add visit/depart methods to HTML-Translator:
def visit_perform(self, node):
pass
def depart_perform(self, node):
pass
def visit_ignore(self, node):
node.children = []
def depart_ignore(self, node):
node.children = []
app.add_node(html_only, html=(visit_perform, depart_perform))
app.add_node(html_only, latex=(visit_ignore, depart_ignore))
app.add_node(latex_only, latex=(visit_perform, depart_perform))
app.add_node(latex_only, html=(visit_ignore, depart_ignore))
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