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Diffstat (limited to 'tools/addon-sdk-1.5/python-lib/markdown/preprocessors.py')
| -rw-r--r-- | tools/addon-sdk-1.5/python-lib/markdown/preprocessors.py | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/tools/addon-sdk-1.5/python-lib/markdown/preprocessors.py b/tools/addon-sdk-1.5/python-lib/markdown/preprocessors.py deleted file mode 100644 index 712a1e8..0000000 --- a/tools/addon-sdk-1.5/python-lib/markdown/preprocessors.py +++ /dev/null @@ -1,214 +0,0 @@ - -""" -PRE-PROCESSORS -============================================================================= - -Preprocessors work on source text before we start doing anything too -complicated. -""" - -import re -import markdown - -HTML_PLACEHOLDER_PREFIX = markdown.STX+"wzxhzdk:" -HTML_PLACEHOLDER = HTML_PLACEHOLDER_PREFIX + "%d" + markdown.ETX - -class Processor: - def __init__(self, markdown_instance=None): - if markdown_instance: - self.markdown = markdown_instance - -class Preprocessor (Processor): - """ - Preprocessors are run after the text is broken into lines. - - Each preprocessor implements a "run" method that takes a pointer to a - list of lines of the document, modifies it as necessary and returns - either the same pointer or a pointer to a new list. - - Preprocessors must extend markdown.Preprocessor. - - """ - def run(self, lines): - """ - Each subclass of Preprocessor should override the `run` method, which - takes the document as a list of strings split by newlines and returns - the (possibly modified) list of lines. - - """ - pass - -class HtmlStash: - """ - This class is used for stashing HTML objects that we extract - in the beginning and replace with place-holders. - """ - - def __init__ (self): - """ Create a HtmlStash. """ - self.html_counter = 0 # for counting inline html segments - self.rawHtmlBlocks=[] - - def store(self, html, safe=False): - """ - Saves an HTML segment for later reinsertion. Returns a - placeholder string that needs to be inserted into the - document. - - Keyword arguments: - - * html: an html segment - * safe: label an html segment as safe for safemode - - Returns : a placeholder string - - """ - self.rawHtmlBlocks.append((html, safe)) - placeholder = HTML_PLACEHOLDER % self.html_counter - self.html_counter += 1 - return placeholder - - def reset(self): - self.html_counter = 0 - self.rawHtmlBlocks = [] - - -class HtmlBlockPreprocessor(Preprocessor): - """Remove html blocks from the text and store them for later retrieval.""" - - right_tag_patterns = ["</%s>", "%s>"] - - def _get_left_tag(self, block): - return block[1:].replace(">", " ", 1).split()[0].lower() - - def _get_right_tag(self, left_tag, block): - for p in self.right_tag_patterns: - tag = p % left_tag - i = block.rfind(tag) - if i > 2: - return tag.lstrip("<").rstrip(">"), i + len(p)-2 + len(left_tag) - return block.rstrip()[-len(left_tag)-2:-1].lower(), len(block) - - def _equal_tags(self, left_tag, right_tag): - if left_tag == 'div' or left_tag[0] in ['?', '@', '%']: # handle PHP, etc. - return True - if ("/" + left_tag) == right_tag: - return True - if (right_tag == "--" and left_tag == "--"): - return True - elif left_tag == right_tag[1:] \ - and right_tag[0] != "<": - return True - else: - return False - - def _is_oneliner(self, tag): - return (tag in ['hr', 'hr/']) - - def run(self, lines): - text = "\n".join(lines) - new_blocks = [] - text = text.split("\n\n") - items = [] - left_tag = '' - right_tag = '' - in_tag = False # flag - - while text: - block = text[0] - if block.startswith("\n"): - block = block[1:] - text = text[1:] - - if block.startswith("\n"): - block = block[1:] - - if not in_tag: - if block.startswith("<"): - left_tag = self._get_left_tag(block) - right_tag, data_index = self._get_right_tag(left_tag, block) - - if data_index < len(block): - text.insert(0, block[data_index:]) - block = block[:data_index] - - if not (markdown.isBlockLevel(left_tag) \ - or block[1] in ["!", "?", "@", "%"]): - new_blocks.append(block) - continue - - if self._is_oneliner(left_tag): - new_blocks.append(block.strip()) - continue - - if block[1] == "!": - # is a comment block - left_tag = "--" - right_tag, data_index = self._get_right_tag(left_tag, block) - # keep checking conditions below and maybe just append - - if block.rstrip().endswith(">") \ - and self._equal_tags(left_tag, right_tag): - new_blocks.append( - self.markdown.htmlStash.store(block.strip())) - continue - else: #if not block[1] == "!": - # if is block level tag and is not complete - - if markdown.isBlockLevel(left_tag) or left_tag == "--" \ - and not block.rstrip().endswith(">"): - items.append(block.strip()) - in_tag = True - else: - new_blocks.append( - self.markdown.htmlStash.store(block.strip())) - - continue - - new_blocks.append(block) - - else: - items.append(block.strip()) - - right_tag, data_index = self._get_right_tag(left_tag, block) - - if self._equal_tags(left_tag, right_tag): - # if find closing tag - in_tag = False - new_blocks.append( - self.markdown.htmlStash.store('\n\n'.join(items))) - items = [] - - if items: - new_blocks.append(self.markdown.htmlStash.store('\n\n'.join(items))) - new_blocks.append('\n') - - new_text = "\n\n".join(new_blocks) - return new_text.split("\n") - - -class ReferencePreprocessor(Preprocessor): - """ Remove reference definitions from text and store for later use. """ - - RE = re.compile(r'^(\ ?\ ?\ ?)\[([^\]]*)\]:\s*([^ ]*)(.*)$', re.DOTALL) - - def run (self, lines): - new_text = []; - for line in lines: - m = self.RE.match(line) - if m: - id = m.group(2).strip().lower() - t = m.group(4).strip() # potential title - if not t: - self.markdown.references[id] = (m.group(3), t) - elif (len(t) >= 2 - and (t[0] == t[-1] == "\"" - or t[0] == t[-1] == "\'" - or (t[0] == "(" and t[-1] == ")") ) ): - self.markdown.references[id] = (m.group(3), t[1:-1]) - else: - new_text.append(line) - else: - new_text.append(line) - - return new_text #+ "\n" |