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# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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=============================================================================
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PY3 = sys.version_info[0] == 3
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if PY3: # pragma: no cover
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else: # pragma: no cover
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string_type = basestring # noqa
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text_type = unicode # noqa
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int2str = unichr # noqa
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Constants you might want to modify
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-----------------------------------------------------------------------------
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BLOCK_LEVEL_ELEMENTS = re.compile(
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"^(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul"
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"|script|noscript|form|fieldset|iframe|math"
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"|hr|hr/|style|li|dt|dd|thead|tbody"
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"|tr|th|td|section|footer|header|group|figure"
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"|figcaption|aside|article|canvas|output"
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"|progress|video|nav)$",
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STX = '\u0002' # Use STX ("Start of text") for start-of-placeholder
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ETX = '\u0003' # Use ETX ("End of text") for end-of-placeholder
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INLINE_PLACEHOLDER_PREFIX = STX+"klzzwxh:"
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INLINE_PLACEHOLDER = INLINE_PLACEHOLDER_PREFIX + "%s" + ETX
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INLINE_PLACEHOLDER_RE = re.compile(INLINE_PLACEHOLDER % r'([0-9]+)')
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AMP_SUBSTITUTE = STX+"amp"+ETX
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HTML_PLACEHOLDER = STX + "wzxhzdk:%s" + ETX
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HTML_PLACEHOLDER_RE = re.compile(HTML_PLACEHOLDER % r'([0-9]+)')
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TAG_PLACEHOLDER = STX + "hzzhzkh:%s" + ETX
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Constants you probably do not need to change
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-----------------------------------------------------------------------------
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# Hebrew (0590-05FF), Arabic (0600-06FF),
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# Syriac (0700-074F), Arabic supplement (0750-077F),
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# Thaana (0780-07BF), Nko (07C0-07FF).
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('\u2D30', '\u2D7F') # Tifinagh
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# Extensions should use "markdown.util.etree" instead of "etree" (or do `from
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# markdown.util import etree`). Do not import it by yourself.
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try: # pragma: no cover
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# Is the C implementation of ElementTree available?
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import xml.etree.cElementTree as etree
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from xml.etree.ElementTree import Comment
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# Serializers (including ours) test with non-c Comment
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etree.test_comment = Comment
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if etree.VERSION < "1.0.5":
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raise RuntimeError("cElementTree version 1.0.5 or higher is required.")
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except (ImportError, RuntimeError): # pragma: no cover
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# Use the Python implementation of ElementTree?
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import xml.etree.ElementTree as etree
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if etree.VERSION < "1.1":
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raise RuntimeError("ElementTree version 1.1 or higher is required")
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AUXILIARY GLOBAL FUNCTIONS
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=============================================================================
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def isBlockLevel(tag):
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"""Check if the tag is a block level HTML tag."""
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if isinstance(tag, string_type):
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return BLOCK_LEVEL_ELEMENTS.match(tag)
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# Some ElementTree tags are not strings, so return False.
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def parseBoolValue(value, fail_on_errors=True, preserve_none=False):
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"""Parses a string representing bool value. If parsing was successful,
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returns True or False. If preserve_none=True, returns True, False,
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or None. If parsing was not successful, raises ValueError, or, if
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fail_on_errors=False, returns None."""
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if not isinstance(value, string_type):
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if preserve_none and value is None:
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elif preserve_none and value.lower() == 'none':
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elif value.lower() in ('true', 'yes', 'y', 'on', '1'):
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elif value.lower() in ('false', 'no', 'n', 'off', '0', 'none'):
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raise ValueError('Cannot parse bool value: %r' % value)
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MISC AUXILIARY CLASSES
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=============================================================================
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class AtomicString(text_type):
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"""A string which should not be further processed."""
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class Processor(object):
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def __init__(self, markdown_instance=None):
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if markdown_instance:
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self.markdown = markdown_instance
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class HtmlStash(object):
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This class is used for stashing HTML objects that we extract
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in the beginning and replace with place-holders.
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""" Create a HtmlStash. """
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self.html_counter = 0 # for counting inline html segments
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self.rawHtmlBlocks = []
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self.tag_data = [] # list of dictionaries in the order tags appear
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def store(self, html, safe=False):
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Saves an HTML segment for later reinsertion. Returns a
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placeholder string that needs to be inserted into the
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* html: an html segment
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* safe: label an html segment as safe for safemode
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Returns : a placeholder string
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self.rawHtmlBlocks.append((html, safe))
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placeholder = self.get_placeholder(self.html_counter)
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self.html_counter += 1
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self.html_counter = 0
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self.rawHtmlBlocks = []
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def get_placeholder(self, key):
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return HTML_PLACEHOLDER % key
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def store_tag(self, tag, attrs, left_index, right_index):
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"""Store tag data and return a placeholder."""
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self.tag_data.append({'tag': tag, 'attrs': attrs,
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'left_index': left_index,
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'right_index': right_index})
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placeholder = TAG_PLACEHOLDER % str(self.tag_counter)
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self.tag_counter += 1 # equal to the tag's index in self.tag_data
added
removed
zinc/python/zinc/util/Markdown-2.6.2/markdown/util.py
