HtmlBlockPreprocessor._nested_markdown_in_html() - Code Metrics - Inspection of "pythonx/markdown_parser.py" - MikeCoder/markdown-preview.vim - Measure and Improve Code Quality continuously with Scrutinizer

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by Dongxin

created 2017-08-15 03:07 UTC

HtmlBlockPreprocessor._nested_markdown_in_html() C

↳ Parent: HtmlBlockPreprocessor

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	7
c	1
b	0
f	0
dl	0
loc	29
rs	5.5

"""
PRE-PROCESSORS
=============================================================================

Preprocessors work on source text before we start doing anything too
complicated.
"""

from __future__ import absolute_import
from __future__ import unicode_literals
from . import util
from . import odict
import re


def build_preprocessors(md_instance, **kwargs):
    """ Build the default set of preprocessors used by Markdown. """
    preprocessors = odict.OrderedDict()
    preprocessors['normalize_whitespace'] = NormalizeWhitespace(md_instance)
    if md_instance.safeMode != 'escape':
        preprocessors["html_block"] = HtmlBlockPreprocessor(md_instance)
    preprocessors["reference"] = ReferencePreprocessor(md_instance)
    return preprocessors


class Preprocessor(util.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  # pragma: no cover


class NormalizeWhitespace(Preprocessor):
    """ Normalize whitespace for consistant parsing. """

    def run(self, lines):
        source = '\n'.join(lines)
        source = source.replace(util.STX, "").replace(util.ETX, "")
        source = source.replace("\r\n", "\n").replace("\r", "\n") + "\n\n"
        source = source.expandtabs(self.markdown.tab_length)
        source = re.sub(r'(?<=\n) +\n', '\n', source)
        return source.split('\n')


class HtmlBlockPreprocessor(Preprocessor):
    """Remove html blocks from the text and store them for later retrieval."""

    right_tag_patterns = ["</%s>", "%s>"]
    attrs_pattern = r"""
        \s+(?P<attr>[^>"'/= ]+)=(?P<q>['"])(?P<value>.*?)(?P=q) # attr="value"
        |                                                       # OR
        \s+(?P<attr1>[^>"'/= ]+)=(?P<value1>[^> ]+)             # attr=value
        |                                                       # OR
        \s+(?P<attr2>[^>"'/= ]+)                                # attr
        """
    left_tag_pattern = r'^\<(?P<tag>[^> ]+)(?P<attrs>(%s)*)\s*\/?\>?' % \
                       attrs_pattern
    attrs_re = re.compile(attrs_pattern, re.VERBOSE)
    left_tag_re = re.compile(left_tag_pattern, re.VERBOSE)
    markdown_in_raw = False

    def _get_left_tag(self, block):
        m = self.left_tag_re.match(block)
        if m:
            tag = m.group('tag')
            raw_attrs = m.group('attrs')
            attrs = {}
            if raw_attrs:
                for ma in self.attrs_re.finditer(raw_attrs):
                    if ma.group('attr'):
                        if ma.group('value'):
                            attrs[ma.group('attr').strip()] = ma.group('value')
                        else:
                            attrs[ma.group('attr').strip()] = ""
                    elif ma.group('attr1'):
                        if ma.group('value1'):
                            attrs[ma.group('attr1').strip()] = ma.group(
                                'value1'
                            )
                        else:
                            attrs[ma.group('attr1').strip()] = ""
                    elif ma.group('attr2'):
                        attrs[ma.group('attr2').strip()] = ""
            return tag, len(m.group(0)), attrs
        else:
            tag = block[1:].split(">", 1)[0].lower()
            return tag, len(tag)+2, {}

    def _recursive_tagfind(self, ltag, rtag, start_index, block):
        while 1:
            i = block.find(rtag, start_index)
            if i == -1:
                return -1
            j = block.find(ltag, start_index)
            # if no ltag, or rtag found before another ltag, return index
            if (j > i or j == -1):
                return i + len(rtag)
            # another ltag found before rtag, use end of ltag as starting
            # point and search again
            j = block.find('>', j)
            start_index = self._recursive_tagfind(ltag, rtag, j + 1, block)
            if start_index == -1:
                # HTML potentially malformed- ltag has no corresponding
                # rtag
                return -1

    def _get_right_tag(self, left_tag, left_index, block):
        for p in self.right_tag_patterns:
            tag = p % left_tag
            i = self._recursive_tagfind(
                "<%s" % left_tag, tag, left_index, block
            )
            if i > 2:
                return tag.lstrip("<").rstrip(">"), i
        return block.rstrip()[-left_index:-1].lower(), len(block)

    def _equal_tags(self, left_tag, right_tag):
        if 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 _stringindex_to_listindex(self, stringindex, items):
        """
        Same effect as concatenating the strings in items,
        finding the character to which stringindex refers in that string,
        and returning the index of the item in which that character resides.
        """
        items.append('dummy')
        i, count = 0, 0
        while count <= stringindex:
            count += len(items[i])
            i += 1
        return i - 1

    def _nested_markdown_in_html(self, items):
        """Find and process html child elements of the given element block."""
        for i, item in enumerate(items):
            if self.left_tag_re.match(item):
                left_tag, left_index, attrs = \
                    self._get_left_tag(''.join(items[i:]))
                right_tag, data_index = self._get_right_tag(
                    left_tag, left_index, ''.join(items[i:]))
                right_listindex = \
                    self._stringindex_to_listindex(data_index, items[i:]) + i
                if 'markdown' in attrs.keys():
                    items[i] = items[i][left_index:]  # remove opening tag
                    placeholder = self.markdown.htmlStash.store_tag(
                        left_tag, attrs, i + 1, right_listindex + 1)
                    items.insert(i, placeholder)
                    if len(items) - right_listindex <= 1:  # last nest, no tail
                        right_listindex -= 1
                    items[right_listindex] = items[right_listindex][
                        :-len(right_tag) - 2]  # remove closing tag
                else:  # raw html
                    if len(items) - right_listindex <= 1:  # last element
                        right_listindex -= 1
                    if right_listindex <= i:
                        right_listindex = i + 1
                    placeholder = self.markdown.htmlStash.store('\n\n'.join(
                        items[i:right_listindex]))
                    del items[i:right_listindex]
                    items.insert(i, placeholder)
        return items

    def run(self, lines):
        text = "\n".join(lines)
        new_blocks = []
        text = text.rsplit("\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("<") and len(block.strip()) > 1:

                    if block[1:4] == "!--":
                        # is a comment block
                        left_tag, left_index, attrs = "--", 2, {}
                    else:
                        left_tag, left_index, attrs = self._get_left_tag(block)
                    right_tag, data_index = self._get_right_tag(left_tag,
                                                                left_index,
                                                                block)
                    # keep checking conditions below and maybe just append

                    if data_index < len(block) and (util.isBlockLevel(left_tag) or left_tag == '--'):
                        text.insert(0, block[data_index:])
                        block = block[:data_index]

                    if not (util.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.rstrip().endswith(">") \
                            and self._equal_tags(left_tag, right_tag):
                        if self.markdown_in_raw and 'markdown' in attrs.keys():
                            block = block[left_index:-len(right_tag) - 2]
                            new_blocks.append(self.markdown.htmlStash.
                                              store_tag(left_tag, attrs, 0, 2))
                            new_blocks.extend([block])
                        else:
                            new_blocks.append(
                                self.markdown.htmlStash.store(block.strip()))
                        continue
                    else:
                        # if is block level tag and is not complete
                        if (not self._equal_tags(left_tag, right_tag)) and \
                           (util.isBlockLevel(left_tag) or left_tag == "--"):
                            items.append(block.strip())
                            in_tag = True
                        else:
                            new_blocks.append(
                                self.markdown.htmlStash.store(block.strip())
                            )
                        continue

                else:
                    new_blocks.append(block)

            else:
                items.append(block)

                # Need to evaluate all items so we can calculate relative to the left index.
                right_tag, data_index = self._get_right_tag(left_tag, left_index, ''.join(items))
                # Adjust data_index: relative to items -> relative to last block
                prev_block_length = 0
                for item in items[:-1]:
                    prev_block_length += len(item)
                data_index -= prev_block_length

                if self._equal_tags(left_tag, right_tag):
                    # if find closing tag

                    if data_index < len(block):
                        # we have more text after right_tag
                        items[-1] = block[:data_index]
                        text.insert(0, block[data_index:])

                    in_tag = False
                    if self.markdown_in_raw and 'markdown' in attrs.keys():

                        items[0] = items[0][left_index:]
                        items[-1] = items[-1][:-len(right_tag) - 2]
                        if items[len(items) - 1]:  # not a newline/empty string
                            right_index = len(items) + 3
                        else:
                            right_index = len(items) + 2
                        new_blocks.append(self.markdown.htmlStash.store_tag(
                            left_tag, attrs, 0, right_index))
                        placeholderslen = len(self.markdown.htmlStash.tag_data)
                        new_blocks.extend(
                            self._nested_markdown_in_html(items))
                        nests = len(self.markdown.htmlStash.tag_data) - \
                            placeholderslen
                        self.markdown.htmlStash.tag_data[-1 - nests][
                            'right_index'] += nests - 2
                    else:
                        new_blocks.append(
                            self.markdown.htmlStash.store('\n\n'.join(items)))
                    items = []

        if items:

            if self.markdown_in_raw and 'markdown' in attrs.keys():
                items[0] = items[0][left_index:]
                items[-1] = items[-1][:-len(right_tag) - 2]
                if items[len(items) - 1]:  # not a newline/empty string
                    right_index = len(items) + 3
                else:
                    right_index = len(items) + 2
                new_blocks.append(
                    self.markdown.htmlStash.store_tag(
                        left_tag, attrs, 0, right_index))
                placeholderslen = len(self.markdown.htmlStash.tag_data)
                new_blocks.extend(self._nested_markdown_in_html(items))
                nests = len(self.markdown.htmlStash.tag_data) - placeholderslen
                self.markdown.htmlStash.tag_data[-1 - nests][
                    'right_index'] += nests - 2
            else:
                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. """

    TITLE = r'[ ]*(\"(.*)\"|\'(.*)\'|\((.*)\))[ ]*'
    RE = re.compile(
        r'^[ ]{0,3}\[([^\]]*)\]:\s*([^ ]*)[ ]*(%s)?$' % TITLE, re.DOTALL
    )
    TITLE_RE = re.compile(r'^%s$' % TITLE)

    def run(self, lines):
        new_text = []
        while lines:
            line = lines.pop(0)
            m = self.RE.match(line)
            if m:
                id = m.group(1).strip().lower()
                link = m.group(2).lstrip('<').rstrip('>')
                t = m.group(5) or m.group(6) or m.group(7)
                if not t:
                    # Check next line for title
                    tm = self.TITLE_RE.match(lines[0])
                    if tm:
                        lines.pop(0)
                        t = tm.group(2) or tm.group(3) or tm.group(4)
                self.markdown.references[id] = (link, t)
            else:
                new_text.append(line)

        return new_text  # + "\n"


1		"""
2		PRE-PROCESSORS
3		=============================================================================
4
5		Preprocessors work on source text before we start doing anything too
6		complicated.
7		"""
8
9		from __future__ import absolute_import
10		from __future__ import unicode_literals
11		from . import util
12		from . import odict
13		import re
14
15
16		def build_preprocessors(md_instance, **kwargs):
17		""" Build the default set of preprocessors used by Markdown. """
18		preprocessors = odict.OrderedDict()
19		preprocessors['normalize_whitespace'] = NormalizeWhitespace(md_instance)
20		if md_instance.safeMode != 'escape':
21		preprocessors["html_block"] = HtmlBlockPreprocessor(md_instance)
22		preprocessors["reference"] = ReferencePreprocessor(md_instance)
23		return preprocessors
24
25
26		class Preprocessor(util.Processor):
27		"""
28		Preprocessors are run after the text is broken into lines.
29
30		Each preprocessor implements a "run" method that takes a pointer to a
31		list of lines of the document, modifies it as necessary and returns
32		either the same pointer or a pointer to a new list.
33
34		Preprocessors must extend markdown.Preprocessor.
35
36		"""
37		def run(self, lines):
38		"""
39		Each subclass of Preprocessor should override the `run` method, which
40		takes the document as a list of strings split by newlines and returns
41		the (possibly modified) list of lines.
42
43		"""
44		pass # pragma: no cover
45
46
47		class NormalizeWhitespace(Preprocessor):
48		""" Normalize whitespace for consistant parsing. """
49
50		def run(self, lines):
51		source = '\n'.join(lines)
52		source = source.replace(util.STX, "").replace(util.ETX, "")
53		source = source.replace("\r\n", "\n").replace("\r", "\n") + "\n\n"
54		source = source.expandtabs(self.markdown.tab_length)
55		source = re.sub(r'(?<=\n) +\n', '\n', source)
56		return source.split('\n')
57
58
59		class HtmlBlockPreprocessor(Preprocessor):
60		"""Remove html blocks from the text and store them for later retrieval."""
61
62		right_tag_patterns = ["</%s>", "%s>"]
63		attrs_pattern = r"""
64		\s+(?P<attr>[^>"'/= ]+)=(?P<q>['"])(?P<value>.*?)(?P=q) # attr="value"
65		\| # OR
66		\s+(?P<attr1>[^>"'/= ]+)=(?P<value1>[^> ]+) # attr=value
67		\| # OR
68		\s+(?P<attr2>[^>"'/= ]+) # attr
69		"""
70		left_tag_pattern = r'^\<(?P<tag>[^> ]+)(?P<attrs>(%s))\s\/?\>?' % \
71		attrs_pattern
72		attrs_re = re.compile(attrs_pattern, re.VERBOSE)
73		left_tag_re = re.compile(left_tag_pattern, re.VERBOSE)
74		markdown_in_raw = False
75
76		def _get_left_tag(self, block):
77		m = self.left_tag_re.match(block)
78		if m:
79		tag = m.group('tag')
80		raw_attrs = m.group('attrs')
81		attrs = {}
82		if raw_attrs:
83		for ma in self.attrs_re.finditer(raw_attrs):
84		if ma.group('attr'):
85		if ma.group('value'):
86		attrs[ma.group('attr').strip()] = ma.group('value')
87		else:
88		attrs[ma.group('attr').strip()] = ""
89		elif ma.group('attr1'):
90		if ma.group('value1'):
91		attrs[ma.group('attr1').strip()] = ma.group(
92		'value1'
93		)
94		else:
95		attrs[ma.group('attr1').strip()] = ""
96		elif ma.group('attr2'):
97		attrs[ma.group('attr2').strip()] = ""
98		return tag, len(m.group(0)), attrs
99		else:
100		tag = block[1:].split(">", 1)[0].lower()
101		return tag, len(tag)+2, {}
102
103		def _recursive_tagfind(self, ltag, rtag, start_index, block):
104		while 1:
105		i = block.find(rtag, start_index)
106		if i == -1:
107		return -1
108		j = block.find(ltag, start_index)
109		# if no ltag, or rtag found before another ltag, return index
110		if (j > i or j == -1):
111		return i + len(rtag)
112		# another ltag found before rtag, use end of ltag as starting
113		# point and search again
114		j = block.find('>', j)
115		start_index = self._recursive_tagfind(ltag, rtag, j + 1, block)
116		if start_index == -1:
117		# HTML potentially malformed- ltag has no corresponding
118		# rtag
119		return -1
120
121		def _get_right_tag(self, left_tag, left_index, block):
122		for p in self.right_tag_patterns:
123		tag = p % left_tag
124		i = self._recursive_tagfind(
125		"<%s" % left_tag, tag, left_index, block
126		)
127		if i > 2:
128		return tag.lstrip("<").rstrip(">"), i
129		return block.rstrip()[-left_index:-1].lower(), len(block)
130
131		def _equal_tags(self, left_tag, right_tag):
132		if left_tag[0] in ['?', '@', '%']: # handle PHP, etc.
133		return True
134		if ("/" + left_tag) == right_tag:
135		return True
136		if (right_tag == "--" and left_tag == "--"):
137		return True
138		elif left_tag == right_tag[1:] and right_tag[0] == "/":
139		return True
140		else:
141		return False
142
143		def _is_oneliner(self, tag):
144		return (tag in ['hr', 'hr/'])
145
146		def _stringindex_to_listindex(self, stringindex, items):
147		"""
148		Same effect as concatenating the strings in items,
149		finding the character to which stringindex refers in that string,
150		and returning the index of the item in which that character resides.
151		"""
152		items.append('dummy')
153		i, count = 0, 0
154		while count <= stringindex:
155		count += len(items[i])
156		i += 1
157		return i - 1
158
159		def _nested_markdown_in_html(self, items):
160		"""Find and process html child elements of the given element block."""
161		for i, item in enumerate(items):
162		if self.left_tag_re.match(item):
163		left_tag, left_index, attrs = \
164		self._get_left_tag(''.join(items[i:]))
165		right_tag, data_index = self._get_right_tag(
166		left_tag, left_index, ''.join(items[i:]))
167		right_listindex = \
168		self._stringindex_to_listindex(data_index, items[i:]) + i
169		if 'markdown' in attrs.keys():
170		items[i] = items[i][left_index:] # remove opening tag
171		placeholder = self.markdown.htmlStash.store_tag(
172		left_tag, attrs, i + 1, right_listindex + 1)
173		items.insert(i, placeholder)
174		if len(items) - right_listindex <= 1: # last nest, no tail
175		right_listindex -= 1
176		items[right_listindex] = items[right_listindex][
177		:-len(right_tag) - 2] # remove closing tag
178		else: # raw html
179		if len(items) - right_listindex <= 1: # last element
180		right_listindex -= 1
181		if right_listindex <= i:
182		right_listindex = i + 1
183		placeholder = self.markdown.htmlStash.store('\n\n'.join(
184		items[i:right_listindex]))
185		del items[i:right_listindex]
186		items.insert(i, placeholder)
187		return items
188
189		def run(self, lines):
190		text = "\n".join(lines)
191		new_blocks = []
192		text = text.rsplit("\n\n")
193		items = []
194		left_tag = ''
195		right_tag = ''
196		in_tag = False # flag
197
198		while text:
199		block = text[0]
200		if block.startswith("\n"):
201		block = block[1:]
202		text = text[1:]
203
204		if block.startswith("\n"):
205		block = block[1:]
206
207		if not in_tag:
208		if block.startswith("<") and len(block.strip()) > 1:
209
210		if block[1:4] == "!--":
211		# is a comment block
212		left_tag, left_index, attrs = "--", 2, {}
213		else:
214		left_tag, left_index, attrs = self._get_left_tag(block)
215		right_tag, data_index = self._get_right_tag(left_tag,
216		left_index,
217		block)
218		# keep checking conditions below and maybe just append
219
220		if data_index < len(block) and (util.isBlockLevel(left_tag) or left_tag == '--'):
221		text.insert(0, block[data_index:])
222		block = block[:data_index]
223
224		if not (util.isBlockLevel(left_tag) or block[1] in ["!", "?", "@", "%"]):
225		new_blocks.append(block)
226		continue
227
228		if self._is_oneliner(left_tag):
229		new_blocks.append(block.strip())
230		continue
231
232		if block.rstrip().endswith(">") \
233		and self._equal_tags(left_tag, right_tag):
234		if self.markdown_in_raw and 'markdown' in attrs.keys():
235		block = block[left_index:-len(right_tag) - 2]
236		new_blocks.append(self.markdown.htmlStash.
237		store_tag(left_tag, attrs, 0, 2))
238		new_blocks.extend([block])
239		else:
240		new_blocks.append(
241		self.markdown.htmlStash.store(block.strip()))
242		continue
243		else:
244		# if is block level tag and is not complete
245		if (not self._equal_tags(left_tag, right_tag)) and \
246		(util.isBlockLevel(left_tag) or left_tag == "--"):
247		items.append(block.strip())
248		in_tag = True
249		else:
250		new_blocks.append(
251		self.markdown.htmlStash.store(block.strip())
252		)
253		continue
254
255		else:
256		new_blocks.append(block)
257
258		else:
259		items.append(block)
260
261		# Need to evaluate all items so we can calculate relative to the left index.
262		right_tag, data_index = self._get_right_tag(left_tag, left_index, ''.join(items))
263		# Adjust data_index: relative to items -> relative to last block
264		prev_block_length = 0
265		for item in items[:-1]:
266		prev_block_length += len(item)
267		data_index -= prev_block_length
268
269		if self._equal_tags(left_tag, right_tag):
270		# if find closing tag
271
272		if data_index < len(block):
273		# we have more text after right_tag
274		items[-1] = block[:data_index]
275		text.insert(0, block[data_index:])
276
277		in_tag = False
278	View Code Duplication	if self.markdown_in_raw and 'markdown' in attrs.keys():
		0 ignored issues – show Duplication introduced 2017-08-15 03:08 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
279		items[0] = items[0][left_index:]
280		items[-1] = items[-1][:-len(right_tag) - 2]
281		if items[len(items) - 1]: # not a newline/empty string
282		right_index = len(items) + 3
283		else:
284		right_index = len(items) + 2
285		new_blocks.append(self.markdown.htmlStash.store_tag(
286		left_tag, attrs, 0, right_index))
287		placeholderslen = len(self.markdown.htmlStash.tag_data)
288		new_blocks.extend(
289		self._nested_markdown_in_html(items))
290		nests = len(self.markdown.htmlStash.tag_data) - \
291		placeholderslen
292		self.markdown.htmlStash.tag_data[-1 - nests][
293		'right_index'] += nests - 2
294		else:
295		new_blocks.append(
296		self.markdown.htmlStash.store('\n\n'.join(items)))
297		items = []
298
299	View Code Duplication	if items:
		0 ignored issues – show Duplication introduced 2017-08-15 03:08 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
300		if self.markdown_in_raw and 'markdown' in attrs.keys():
301		items[0] = items[0][left_index:]
302		items[-1] = items[-1][:-len(right_tag) - 2]
303		if items[len(items) - 1]: # not a newline/empty string
304		right_index = len(items) + 3
305		else:
306		right_index = len(items) + 2
307		new_blocks.append(
308		self.markdown.htmlStash.store_tag(
309		left_tag, attrs, 0, right_index))
310		placeholderslen = len(self.markdown.htmlStash.tag_data)
311		new_blocks.extend(self._nested_markdown_in_html(items))
312		nests = len(self.markdown.htmlStash.tag_data) - placeholderslen
313		self.markdown.htmlStash.tag_data[-1 - nests][
314		'right_index'] += nests - 2
315		else:
316		new_blocks.append(
317		self.markdown.htmlStash.store('\n\n'.join(items)))
318		new_blocks.append('\n')
319
320		new_text = "\n\n".join(new_blocks)
321		return new_text.split("\n")
322
323
324		class ReferencePreprocessor(Preprocessor):
325		""" Remove reference definitions from text and store for later use. """
326
327		TITLE = r'[ ](\"(.)\"\|\'(.)\'\|\((.)\))[ ]*'
328		RE = re.compile(
329		r'^[ ]{0,3}\[([^\]])\]:\s([^ ])[ ](%s)?$' % TITLE, re.DOTALL
330		)
331		TITLE_RE = re.compile(r'^%s$' % TITLE)
332
333		def run(self, lines):
334		new_text = []
335		while lines:
336		line = lines.pop(0)
337		m = self.RE.match(line)
338		if m:
339		id = m.group(1).strip().lower()
340		link = m.group(2).lstrip('<').rstrip('>')
341		t = m.group(5) or m.group(6) or m.group(7)
342		if not t:
343		# Check next line for title
344		tm = self.TITLE_RE.match(lines[0])
345		if tm:
346		lines.pop(0)
347		t = tm.group(2) or tm.group(3) or tm.group(4)
348		self.markdown.references[id] = (link, t)
349		else:
350		new_text.append(line)
351
352		return new_text # + "\n"
353

MikeCoder / markdown-preview.vim

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HtmlBlockPreprocessor._nested_markdown_in_html() C

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