python/book_html.py

   1 # -*- coding: utf-8 -*-
   2
   3 import book_base as BookBase
   4 import copy
   5 from book_snippets import *
   6
   7 # Recognize special sequences in the input.
   8 #
   9 #   (?P<name>regex) -- Assign result of REGEX to NAME.
  10 #   *? -- Match non-greedily.
  11 #   (?!...) -- Match if `...' doesn't match next (without consuming
  12 #              the string).
  13 #
  14 #   (?m) -- Multiline regex: Make ^ and $ match at each line.
  15 #   (?s) -- Make the dot match all characters including newline.
  16 #   (?x) -- Ignore whitespace in patterns.
  17 # Possible keys are:
  18 #     'multiline_comment', 'verbatim', 'lilypond_block', 'singleline_comment',
  19 #     'lilypond_file', 'include', 'lilypond', 'lilypondversion'
  20 HTML_snippet_res = {
  21     'lilypond':
  22          r'''(?mx)
  23           (?P<match>
  24           <lilypond(\s+(?P<options>.*?))?\s*:\s*(?P<code>.*?)\s*/>)''',
  25
  26     'lilypond_block':
  27          r'''(?msx)
  28           (?P<match>
  29           <lilypond\s*(?P<options>.*?)\s*>
  30           (?P<code>.*?)
  31           </lilypond\s*>)''',
  32
  33     'lilypond_file':
  34          r'''(?mx)
  35           (?P<match>
  36           <lilypondfile\s*(?P<options>.*?)\s*>
  37           \s*(?P<filename>.*?)\s*
  38           </lilypondfile\s*>)''',
  39
  40     'multiline_comment':
  41          r'''(?smx)(?P<match>\s*(?!@c\s+)(?P<code><!--\s.*?!-->)\s)''',
  42
  43     'verb':
  44          r'''(?x)(?P<match>(?P<code><pre>.*?</pre>))''',
  45
  46     'verbatim':
  47          r'''(?xs)(?P<match>(?P<code><pre>\s.*?</pre>\s))''',
  48
  49     'lilypondversion':
  50          r'''(?mx)(?P<match><lilypondversion\s*/>)''',
  51 }
  52
  53
  54 HTML_output = {
  55     FILTER: r'''<lilypond %(options)s>
  56 %(code)s
  57 </lilypond>
  58 ''',
  59
  60     AFTER: r'''
  61  </a>
  62 </p>''',
  63
  64     BEFORE: r'''<p>
  65  <a href="%(base)s.ly">''',
  66
  67     OUTPUT: r'''
  68   <img align="middle"
  69        border="0"
  70        src="%(image)s"
  71        alt="%(alt)s">''',
  72
  73     PRINTFILENAME: '<p><tt><a href="%(base)s.ly">%(filename)s</a></tt></p>',
  74
  75     QUOTE: r'''<blockquote>
  76 %(str)s
  77 </blockquote>
  78 ''',
  79
  80     VERBATIM: r'''<pre>
  81 %(verb)s</pre>''',
  82
  83     VERSION: r'''%(program_version)s''',
  84 }
  85
  86
  87
  88
  89
  90
  91
  92 class BookHTMLOutputFormat (BookBase.BookOutputFormat):
  93     def __init__ (self):
  94         BookBase.BookOutputFormat.__init__ (self)
  95         self.format = "html"
  96         self.default_extension = ".html"
  97         self.snippet_res = HTML_snippet_res
  98         self.output = HTML_output
  99         self.handled_extensions = ['.html', '.xml','.htmly']
 100         self.snippet_option_separator = '\s*'
 101
 102     def split_snippet_options (self, option_string):
 103         if option_string:
 104             options = re.findall('[-\w\.-:]+(?:\s*=\s*(?:"[^"]*"|\'[^\']*\'|\S+))?',
 105                                  option_string)
 106             options = [re.sub('^([^=]+=\s*)(?P<q>["\'])(.*)(?P=q)', '\g<1>\g<3>', opt)
 107                        for opt in options]
 108             return options
 109         return []
 110
 111     def adjust_snippet_command (self, cmd):
 112         if '--formats' not in cmd:
 113             return cmd + ' --formats=png '
 114         else:
 115             return cmd
 116
 117     def snippet_output (self, basename, snippet):
 118         str = ''
 119         rep = snippet.get_replacements ();
 120         rep['base'] = basename
 121         str += self.output_print_filename (basename, snippet)
 122         if VERBATIM in snippet.option_dict:
 123             rep['verb'] = BookBase.verbatim_html (snippet.verb_ly ())
 124             str += self.output[VERBATIM] % rep
 125         if QUOTE in snippet.option_dict:
 126             str = self.output[QUOTE] % {'str': str}
 127
 128         str += self.output[BEFORE] % rep
 129         for image in snippet.get_images ():
 130             rep1 = copy.copy (rep)
 131             rep1['image'] = image
 132             (rep1['base'], rep1['ext']) = os.path.splitext (image)
 133             rep1['alt'] = snippet.option_dict[ALT]
 134             str += self.output[OUTPUT] % rep1
 135
 136         str += self.output[AFTER] % rep
 137         return str
 138
 139     def required_files (self, snippet, base, full, required_files):
 140         return self.required_files_png (snippet, base, full, required_files)
 141
 142
 143 BookBase.register_format (BookHTMLOutputFormat ());