texinfo/info_translator.py

   1 from docutils import nodes
   2 import exceptions
   3
   4 class InfoTranslator(nodes.NodeVisitor):
   5
   6     document_start = """\\input texinfo  @c -*-texinfo-*-
   7 """
   8
   9     def __init__(self, document):
  10         nodes.NodeVisitor.__init__(self, document)
  11         self.settings = document.settings
  12         self.header = []
  13         self.body = []
  14         self.section_level = 0
  15         self.docinfo = {}
  16
  17     def astext(self):
  18         return '\n'.join(self.header + self.body + [''])
  19
  20     def visit_document(self, node):
  21         self.header.append(self.document_start)
  22
  23     def depart_document(self, node):
  24         pass
  25
  26     def visit_comment(self, node):
  27         self.body.append('@c %s' % node.astext())
  28         raise nodes.SkipNode
  29
  30     def visit_section(self, node):
  31         self.section_level += 1
  32         #self.body.append('@c +s %d' % self.section_level)
  33
  34     def depart_section(self, node):
  35         self.section_level -= 1
  36         #self.body.append('@c -s %d' % self.section_level)
  37
  38     def emit_title(self, text):
  39         self.body.append('@node Top')
  40         self.body.append('@top %s' % text)
  41
  42     def emit_chapter(self, text):
  43         self.body.append('@chapter %s' % text)
  44
  45     def emit_section(self, text):
  46         self.body.append('@section %s' % text)
  47
  48     def emit_subsection(self, text):
  49         self.body.append('@subsection %s' % text)
  50
  51     def visit_title(self, node):
  52         title_functions = [self.emit_title, self.emit_chapter, self.emit_section, self.emit_subsection]
  53         try:
  54             f = title_functions[self.section_level]
  55         except exceptions.IndexError:
  56             f = self.emit_subsection
  57             #self.body.append('@c section_level %d' % self.section_level)
  58         f(node.astext())
  59         raise nodes.SkipNode
  60
  61     def visit_subtitle(self, node):
  62         self.body.append('@majorheading %s' % node.astext())
  63         raise nodes.SkipNode
  64
  65     def visit_paragraph(self, node):
  66         self.body.append(node.astext())
  67         raise nodes.SkipNode
  68
  69     def visit_bullet_list(self, node):
  70         self.body.append('@itemize @bullet')
  71
  72     def depart_bullet_list(self, node):
  73         self.body.append('@end @itemize')
  74
  75     def visit_list_item(self, node):
  76         self.body.append('@item')
  77
  78     def depart_list_item(self, node):
  79         self.body.append('')
  80
  81     def visit_literal(self, node):
  82         raise nodes.SkipNode
  83
  84     def visit_literal_block(self, node):
  85         self.body.append(node.astext())
  86         raise nodes.SkipNode
  87
  88     def visit_block_quote(self, node):
  89         self.body.append('@quotation')
  90
  91     def depart_block_quote(self, node):
  92         self.body.append('@end quotation')