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102 lines
2.9 KiB
102 lines
2.9 KiB
7 years ago
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#-*- conding: utf-8 -*-
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'''
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Creole Reader
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-------------
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This plugins allows you to write your posts using the wikicreole syntax. Give to
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these files the creole extension.
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For the syntax, look at: http://www.wikicreole.org/
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'''
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from pelican import readers
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from pelican import signals
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from pelican import settings
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from pelican.utils import pelican_open
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try:
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from creole import creole2html
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creole = True
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except ImportError:
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creole = False
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try:
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from pygments import lexers
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from pygments.formatters import HtmlFormatter
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from pygments import highlight
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PYGMENTS = True
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except:
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PYGMENTS = False
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class CreoleReader(readers.BaseReader):
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enabled = creole
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file_extensions = ['creole']
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def __init__(self, settings):
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super(CreoleReader, self).__init__(settings)
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def _parse_header_macro(self, text):
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for line in text.split('\n'):
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name, value = line.split(':')
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name, value = name.strip(), value.strip()
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if name == 'title':
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self._metadata[name] = value
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else:
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self._metadata[name] = self.process_metadata(name, value)
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return u''
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def _no_highlight(self, text):
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html = u'\n<pre><code>{}</code></pre>\n'.format(text)
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return html
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def _get_lexer(self, source_type, code):
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try:
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return lexers.get_lexer_by_name(source_type)
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except:
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return lexers.guess_lexer(code)
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def _get_formatter(self):
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formatter = HtmlFormatter(lineos = True, encoding='utf-8',
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style='colorful', outencoding='utf-8',
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cssclass='pygments')
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return formatter
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def _parse_code_macro(self, ext, text):
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if not PYGMENTS:
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return self._no_highlight(text)
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try:
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source_type = ''
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if '.' in ext:
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source_type = ext.strip().split('.')[1]
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else:
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source_type = ext.strip()
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except IndexError:
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source_type = ''
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lexer = self._get_lexer(source_type, text)
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formatter = self._get_formatter()
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try:
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return highlight(text, lexer, formatter).decode('utf-8')
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except:
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return self._no_highlight(text)
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# You need to have a read method, which takes a filename and returns
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# some content and the associated metadata.
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def read(self, source_path):
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"""Parse content and metadata of creole files"""
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self._metadata = {}
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with pelican_open(source_path) as text:
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content = creole2html(text, macros={'header': self._parse_header_macro,
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'code': self._parse_code_macro})
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return content, self._metadata
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def add_reader(readers):
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readers.reader_classes['creole'] = CreoleReader
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def register():
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signals.readers_init.connect(add_reader)
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