diff options
Diffstat (limited to 'docutils/transforms/universal.py')
| -rw-r--r-- | docutils/transforms/universal.py | 47 |
1 files changed, 35 insertions, 12 deletions
diff --git a/docutils/transforms/universal.py b/docutils/transforms/universal.py index 443b186fb..4f5626c1d 100644 --- a/docutils/transforms/universal.py +++ b/docutils/transforms/universal.py @@ -207,23 +207,46 @@ class SmartQuotes(Transform): """ Replace ASCII quotation marks with typographic form. - Also replace multiple dashes with em-dashes and en-dashes. + Also replace multiple dashes with em-dash/en-dash characters. """ default_priority = 850 + texttype = {True: 'literal', + False: 'plain'} + def apply(self): if self.document.settings.smart_quotes is False: return - for node in self.document.traverse(nodes.Text): - if isinstance(node.parent, - (nodes.FixedTextElement, - nodes.literal, - nodes.Special, - nodes.option_string - )): - # print "literal", node + + # "Educate" quotes in normal text. Handle each block of text + # (TextElement node) as a unit to keep context around inline nodes: + for node in self.document.traverse(nodes.TextElement): + # skip preformatted text blocks and special elements: + if isinstance(node, (nodes.FixedTextElement, nodes.Special)): + continue + # nested TextElements are not "block-level" elements: + if isinstance(node.parent, nodes.TextElement): continue - newtext = smartquotes.smartyPants(node.astext(), attr='2') - node.parent.replace(node, nodes.Text(newtext)) - # print "smartquote", + + # list of text nodes in the "text block": + txtnodes = [txtnode for txtnode in node.traverse(nodes.Text) + if not isinstance(txtnode.parent, + nodes.option_string)] + # smartquotes.educate_tokens() iterates over + # ``(texttype, nodetext)`` tuples. `texttype` is "literal" + # or "plain" where "literal" text is not changed: + tokens = [(self.texttype[isinstance(txtnode.parent, + (nodes.literal, + nodes.math, + nodes.image, + nodes.raw, + nodes.problematic))], + txtnode.astext()) for txtnode in txtnodes] + + # Iterator educating quotes in plain text + # 2 : set all, using old school en- and em- dash shortcuts + teacher = smartquotes.educate_tokens(tokens, attr='2') + + for txtnode, newtext in zip(txtnodes, teacher): + txtnode.parent.replace(txtnode, nodes.Text(newtext)) |