| 1 | # -*- coding: utf-8 -*- |
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| 2 | # |
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| 3 | # Copyright (C) 2003-2006 Edgewall Software |
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| 4 | # Copyright (C) 2003-2005 Jonas Borgström <jonas@edgewall.com> |
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| 5 | # Copyright (C) 2004-2005 Christopher Lenz <cmlenz@gmx.de> |
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| 6 | # Copyright (C) 2005-2006 Christian Boos <cboos@neuf.fr> |
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| 7 | # All rights reserved. |
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| 8 | # |
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| 9 | # This software is licensed as described in the file COPYING, which |
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| 10 | # you should have received as part of this distribution. The terms |
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| 11 | # are also available at http://trac.edgewall.org/wiki/TracLicense. |
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| 12 | # |
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| 13 | # This software consists of voluntary contributions made by many |
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| 14 | # individuals. For the exact contribution history, see the revision |
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| 15 | # history and logs, available at http://trac.edgewall.org/log/. |
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| 16 | # |
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| 17 | # Author: Jonas Borgström <jonas@edgewall.com> |
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| 18 | # Christopher Lenz <cmlenz@gmx.de> |
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| 19 | # Christian Boos <cboos@neuf.fr> |
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| 20 | |
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| 21 | import re |
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| 22 | import os |
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| 23 | import urllib |
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| 24 | from urlparse import urlsplit |
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| 25 | |
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| 26 | from StringIO import StringIO |
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| 27 | |
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| 28 | from trac.core import * |
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| 29 | from trac.mimeview import * |
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| 30 | from trac.wiki.api import WikiSystem |
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| 31 | from trac.util.html import escape, plaintext, Markup, Element, html |
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| 32 | from trac.util.text import shorten_line, to_unicode |
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| 33 | from trac.wiki.formatter import Formatter, WikiProcessor |
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| 34 | |
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| 35 | class NotifyFormatter(Formatter): |
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| 36 | flavor = 'notify' |
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| 37 | |
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| 38 | # -- Pre- IWikiSyntaxProvider rules (Font styles) |
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| 39 | |
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| 40 | def simple_tag_handler(self, match, open_tag, close_tag): |
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| 41 | """Generic handler for simple binary style tags""" |
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| 42 | if self.tag_open_p((open_tag, close_tag)): |
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| 43 | self.close_tag(close_tag) |
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| 44 | return '' #simple tags are ignored |
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| 45 | else: |
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| 46 | self.open_tag(open_tag, close_tag) |
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| 47 | return '' #simple tags are ignored |
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| 48 | |
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| 49 | def _bolditalic_formatter(self, match, fullmatch): |
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| 50 | italic = ('<i>', '</i>') |
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| 51 | italic_open = self.tag_open_p(italic) |
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| 52 | tmp = '' |
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| 53 | if italic_open: |
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| 54 | tmp += '' #italic[1] |
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| 55 | self.close_tag(italic[1]) |
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| 56 | tmp += self._bold_formatter(match, fullmatch) |
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| 57 | if not italic_open: |
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| 58 | tmp += '' #italic[0] |
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| 59 | self.open_tag(*italic) |
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| 60 | return tmp |
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| 61 | |
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| 62 | |
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| 63 | def _inlinecode_formatter(self, match, fullmatch): |
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| 64 | return '[code: ' + fullmatch.group('inline') + ']' |
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| 65 | #return html.TT(fullmatch.group('inline')) |
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| 66 | |
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| 67 | def _inlinecode2_formatter(self, match, fullmatch): |
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| 68 | return '[code: ' + fullmatch.group('inline2') + ']' |
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| 69 | #return html.TT(fullmatch.group('inline2')) |
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| 70 | |
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| 71 | # -- Post- IWikiSyntaxProvider rules |
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| 72 | |
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| 73 | # HTML escape of &, < and > |
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| 74 | def _htmlescape_formatter(self, match, fullmatch): |
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| 75 | return match |
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| 76 | |
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| 77 | # Short form (shref) and long form (lhref) of TracLinks |
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| 78 | |
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| 79 | def _make_link(self, ns, target, match, label): |
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| 80 | # first check for an alias defined in trac.ini |
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| 81 | ns = self.env.config.get('intertrac', ns) or ns |
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| 82 | if ns in self.wiki.link_resolvers: |
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| 83 | tmp = self.wiki.link_resolvers[ns](self, ns, target, escape(label, False)) |
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| 84 | r = re.compile("<a .*?</a>") |
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| 85 | return r.sub(self._link_replace, '%s' % tmp) |
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| 86 | elif target.startswith('//') or ns == "mailto": |
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| 87 | return self._make_ext_link(ns+':'+target, label) |
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| 88 | else: |
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| 89 | return self._make_intertrac_link(ns, target, label) or \ |
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| 90 | self._make_interwiki_link(ns, target, label) or \ |
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| 91 | match |
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| 92 | |
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| 93 | def _make_ext_link(self, url, text, title=''): |
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| 94 | self.links.append(('%d: ' % (len(self.links) + 1)) + url ) |
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| 95 | # if title == '': |
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| 96 | # return url + (' (%d)' % len(self.links)) |
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| 97 | return text + (' (%d)' % len(self.links)) |
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| 98 | |
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| 99 | |
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| 100 | def _make_relative_link(self, url, text): |
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| 101 | #relative links are absolute now (req or env).abs_href.base |
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| 102 | if url.startswith('//'): # only the protocol will be kept |
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| 103 | return url #what is this one? |
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| 104 | #return html.A(text, class_="ext-link", href=url) |
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| 105 | else: |
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| 106 | self.links.append(('%d:' % (len(self.links) +1)) + url ) |
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| 107 | return text + (' (%d)' % len(self.links)) |
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| 108 | #return html.A(text, href=url) |
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| 109 | |
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| 110 | # WikiMacros |
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| 111 | |
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| 112 | def _macro_formatter(self, match, fullmatch): |
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| 113 | name = fullmatch.group('macroname') |
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| 114 | if name.lower() == 'br': |
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| 115 | return os.linesep |
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| 116 | return '' # ignore wiki macros - rendering would be difficult and normally these are special cases |
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| 117 | |
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| 118 | # Headings |
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| 119 | |
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| 120 | def _link_replace(self, fullmatch): |
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| 121 | tmp = fullmatch.group() |
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| 122 | r = re.compile("(<a .*?)(href=)(?P<href>'[^']*'|\"[^\"]*\"|[^ ]*)(.*?>)(?P<text>.*(?=</a>))") |
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| 123 | m = r.match('%s' % tmp) |
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| 124 | if m: |
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| 125 | href = self._unquote(m.group('href')) |
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| 126 | #make relative links absolute |
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| 127 | if href[0] == "/": |
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| 128 | href = urlsplit((req or env).abs_href.base)[0] + "://" + urlsplit((req or env).abs_href.base)[1] + href |
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| 129 | self.links.append("%d: " % (len(self.links) + 1) + href) |
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| 130 | return m.group('text') + " (%d)" % len(self.links) |
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| 131 | return tmp |
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| 132 | |
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| 133 | def _parse_heading(self, match, fullmatch, shorten): |
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| 134 | match = match.strip() |
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| 135 | |
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| 136 | depth = min(len(fullmatch.group('hdepth')), 5) |
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| 137 | anchor = fullmatch.group('hanchor') or '' |
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| 138 | heading_text = match[depth+1:-depth-1-len(anchor)] |
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| 139 | heading = wiki_to_notifyoneliner(heading_text, self.env, self.db, False, |
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| 140 | self._absurls, self.req, self.links) |
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| 141 | if anchor: |
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| 142 | anchor = anchor[1:] |
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| 143 | else: |
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| 144 | sans_markup = plaintext(heading, keeplinebreaks=False) |
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| 145 | anchor = self._anchor_re.sub('', sans_markup) |
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| 146 | if not anchor or anchor[0].isdigit() or anchor[0] in '.-': |
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| 147 | # an ID must start with a Name-start character in XHTML |
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| 148 | anchor = 'a' + anchor # keeping 'a' for backward compat |
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| 149 | i = 1 |
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| 150 | anchor_base = anchor |
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| 151 | while anchor in self._anchors: |
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| 152 | anchor = anchor_base + str(i) |
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| 153 | i += 1 |
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| 154 | self._anchors[anchor] = True |
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| 155 | if shorten: |
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| 156 | heading = wiki_to_notifyoneliner(heading_text, self.env, self.db, True, |
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| 157 | self._absurls, self.req, self.links) |
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| 158 | return (depth, heading, anchor) |
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| 159 | |
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| 160 | def _heading_formatter(self, match, fullmatch): |
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| 161 | self.close_table() |
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| 162 | self.close_paragraph() |
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| 163 | self.close_indentation() |
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| 164 | self.close_list() |
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| 165 | self.close_def_list() |
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| 166 | depth, heading, anchor = self._parse_heading(match, fullmatch, False) |
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| 167 | self.out.write('%s %s %s' % ('='*depth, heading, '='*depth)) |
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| 168 | |
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| 169 | # Lists |
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| 170 | |
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| 171 | def _set_list_depth(self, depth, new_type, list_class, start): |
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| 172 | def open_list(): |
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| 173 | self.close_table() |
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| 174 | self.close_paragraph() |
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| 175 | self.close_indentation() # FIXME: why not lists in quotes? |
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| 176 | self._list_stack.append((new_type, depth)) |
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| 177 | self._set_tab(depth) |
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| 178 | class_attr = list_class and ' class="%s"' % list_class or '' |
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| 179 | start_attr = start and ' start="%s"' % start or '' |
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| 180 | self.out.write(' '*depth + '* ') # + '<'+new_type+class_attr+start_attr+'><li>') |
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| 181 | def close_list(tp): |
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| 182 | self._list_stack.pop() |
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| 183 | self.out.write('') #'</li></%s>' % tp) |
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| 184 | |
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| 185 | # depending on the indent/dedent, open or close lists |
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| 186 | if depth > self._get_list_depth(): |
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| 187 | open_list() |
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| 188 | else: |
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| 189 | while self._list_stack: |
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| 190 | deepest_type, deepest_offset = self._list_stack[-1] |
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| 191 | if depth >= deepest_offset: |
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| 192 | break |
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| 193 | close_list(deepest_type) |
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| 194 | if depth > 0: |
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| 195 | if self._list_stack: |
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| 196 | old_type, old_offset = self._list_stack[-1] |
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| 197 | if new_type and old_type != new_type: |
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| 198 | close_list(old_type) |
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| 199 | open_list() |
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| 200 | else: |
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| 201 | if old_offset != depth: # adjust last depth |
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| 202 | self._list_stack[-1] = (old_type, depth) |
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| 203 | self.out.write(' '*depth + '* ') #'</li><li>') |
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| 204 | else: |
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| 205 | open_list() |
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| 206 | |
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| 207 | # Definition Lists |
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| 208 | |
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| 209 | def _definition_formatter(self, match, fullmatch): |
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| 210 | #tmp = self.in_def_list and '</dd>' or '<dl>' |
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| 211 | definition = match[:match.find('::')] |
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| 212 | tmp = '%s: ' % wiki_to_notifyoneliner(definition, self.env, |
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| 213 | self.db, req=self.req) |
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| 214 | self.in_def_list = True |
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| 215 | return tmp |
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| 216 | |
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| 217 | def close_def_list(self): |
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| 218 | if self.in_def_list: |
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| 219 | self.out.write('\n') |
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| 220 | self.in_def_list = False |
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| 221 | |
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| 222 | # Blockquote |
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| 223 | |
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| 224 | def _indent_formatter(self, match, fullmatch): |
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| 225 | idepth = len(fullmatch.group('idepth')) |
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| 226 | if self._list_stack: |
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| 227 | ltype, ldepth = self._list_stack[-1] |
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| 228 | if idepth < ldepth: |
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| 229 | for _, ldepth in self._list_stack: |
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| 230 | if idepth > ldepth: |
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| 231 | self.in_list_item = True |
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| 232 | self._set_list_depth(idepth, None, None, None) |
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| 233 | return '' |
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| 234 | elif idepth <= ldepth + (ltype == 'ol' and 3 or 2): |
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| 235 | self.in_list_item = True |
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| 236 | return '' |
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| 237 | if self.in_def_list: |
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| 238 | return ' ' |
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| 239 | return ' ' |
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| 240 | |
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| 241 | def _citation_formatter(self, match, fullmatch): |
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| 242 | cdepth = len(fullmatch.group('cdepth').replace(' ', '')) |
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| 243 | self._set_quote_depth(cdepth, True) |
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| 244 | return match #'' |
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| 245 | |
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| 246 | def close_indentation(self): |
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| 247 | self._set_quote_depth(0) |
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| 248 | |
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| 249 | def _get_quote_depth(self): |
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| 250 | """Return the space offset associated to the deepest opened quote.""" |
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| 251 | return self._quote_stack and self._quote_stack[-1] or 0 |
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| 252 | |
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| 253 | def _set_quote_depth(self, depth, citation=False): |
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| 254 | return '' #may want to revisit this |
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| 255 | |
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| 256 | # Table |
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| 257 | |
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| 258 | def _last_table_cell_formatter(self, match, fullmatch): |
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| 259 | return match #'' |
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| 260 | |
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| 261 | def _table_cell_formatter(self, match, fullmatch): |
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| 262 | return match |
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| 263 | self.open_table() |
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| 264 | self.open_table_row() |
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| 265 | if self.in_table_cell: |
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| 266 | return '</td><td>' |
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| 267 | else: |
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| 268 | self.in_table_cell = 1 |
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| 269 | return '<td>' |
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| 270 | |
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| 271 | def open_table(self): |
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| 272 | if not self.in_table: |
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| 273 | self.close_paragraph() |
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| 274 | self.close_list() |
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| 275 | self.close_def_list() |
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| 276 | self.in_table = 1 |
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| 277 | self.out.write('<table class="wiki">' + os.linesep) |
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| 278 | |
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| 279 | def open_table_row(self): |
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| 280 | if not self.in_table_row: |
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| 281 | self.open_table() |
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| 282 | self.in_table_row = 1 |
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| 283 | self.out.write('<tr>') |
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| 284 | |
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| 285 | def close_table_row(self): |
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| 286 | if self.in_table_row: |
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| 287 | self.in_table_row = 0 |
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| 288 | if self.in_table_cell: |
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| 289 | self.in_table_cell = 0 |
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| 290 | self.out.write('</td>') |
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| 291 | |
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| 292 | self.out.write('</tr>') |
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| 293 | |
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| 294 | def close_table(self): |
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| 295 | if self.in_table: |
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| 296 | self.close_table_row() |
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| 297 | self.out.write('</table>' + os.linesep) |
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| 298 | self.in_table = 0 |
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| 299 | |
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| 300 | # Paragraphs |
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| 301 | |
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| 302 | def open_paragraph(self): |
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| 303 | if not self.paragraph_open: |
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| 304 | self.out.write(os.linesep) |
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| 305 | self.paragraph_open = 1 |
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| 306 | |
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| 307 | def close_paragraph(self): |
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| 308 | if self.paragraph_open: |
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| 309 | while self._open_tags != []: |
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| 310 | self.out.write(self._open_tags.pop()[1]) |
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| 311 | self.out.write(os.linesep) |
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| 312 | self.paragraph_open = 0 |
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| 313 | |
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| 314 | # Code blocks |
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| 315 | #this was overridden |
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| 316 | def handle_code_block(self, line): |
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| 317 | if line.strip() == Formatter.STARTBLOCK: |
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| 318 | self.in_code_block += 1 |
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| 319 | if self.in_code_block == 1: |
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| 320 | self.code_processor = None |
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| 321 | self.code_text = 'Code' |
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| 322 | else: |
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| 323 | self.code_text += ' ' + line + os.linesep |
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| 324 | if not self.code_processor: |
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| 325 | self.code_processor = WikiProcessor(self.env, 'default') |
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| 326 | elif line.strip() == Formatter.ENDBLOCK: |
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| 327 | self.in_code_block -= 1 |
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| 328 | if self.in_code_block == 0 and self.code_processor: |
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| 329 | self.close_table() |
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| 330 | self.close_paragraph() |
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| 331 | self.out.write(to_unicode(self.code_text)) |
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| 332 | else: |
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| 333 | self.code_text += ' ' + line + os.linesep |
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| 334 | elif not self.code_processor: |
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| 335 | match = Formatter._processor_re.search(line) |
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| 336 | if match: |
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| 337 | name = match.group(1) |
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| 338 | self.code_text += '(' + name + '):' + os.linesep |
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| 339 | #we set it so that we do not end up back here but we never use it |
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| 340 | self.code_processor = WikiProcessor(self.env, 'default') |
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| 341 | else: |
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| 342 | self.code_text += ':' + os.linesep + ' ' + line + os.linesep |
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| 343 | #we set it so that we do not end up back here but we never use it |
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| 344 | self.code_processor = WikiProcessor(self.env, 'default') |
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| 345 | else: |
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| 346 | self.code_text += ' ' + line + os.linesep |
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| 347 | |
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| 348 | # -- Wiki engine |
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| 349 | |
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| 350 | def handle_match(self, fullmatch): |
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| 351 | for itype, match in fullmatch.groupdict().items(): |
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| 352 | if match and not itype in self.wiki.helper_patterns: |
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| 353 | # Check for preceding escape character '!' |
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| 354 | if match[0] == '!': |
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| 355 | return escape(match[1:]) |
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| 356 | if itype in self.wiki.external_handlers: # don't know what all to do here? |
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| 357 | external_handler = self.wiki.external_handlers[itype] |
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| 358 | tmp = external_handler(self, match, fullmatch) |
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| 359 | #handle links that are returned (CamelCase) |
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| 360 | r = re.compile("<a .*?</a>") |
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| 361 | return r.sub(self._link_replace, '%s' % tmp) |
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| 362 | else: |
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| 363 | internal_handler = getattr(self, '_%s_formatter' % itype) |
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| 364 | return internal_handler(match, fullmatch) |
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| 365 | |
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| 366 | def format(self, text, out=None, escape_newlines=False): |
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| 367 | self.reset(out) |
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| 368 | self.links = [] |
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| 369 | for line in text.splitlines(): |
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| 370 | # Handle code block |
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| 371 | if self.in_code_block or line.strip() == Formatter.STARTBLOCK: |
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| 372 | self.handle_code_block(line) |
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| 373 | continue |
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| 374 | # Handle Horizontal ruler |
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| 375 | elif line[0:4] == '----': |
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| 376 | self.close_table() |
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| 377 | self.close_paragraph() |
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| 378 | self.close_indentation() |
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| 379 | self.close_list() |
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| 380 | self.close_def_list() |
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| 381 | self.out.write('----------------------------------------------------------------------------' + os.linesep) |
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| 382 | continue |
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| 383 | # Handle new paragraph |
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| 384 | elif line == '': |
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| 385 | self.close_paragraph() |
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| 386 | self.close_indentation() |
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| 387 | self.close_list() |
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| 388 | self.close_def_list() |
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| 389 | self.out.write(os.linesep) #maybe? |
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| 390 | continue |
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| 391 | |
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| 392 | # Tab expansion and clear tabstops if no indent |
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| 393 | line = line.replace('\t', ' '*2) |
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| 394 | if not line.startswith(' '): |
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| 395 | self._tabstops = [] |
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| 396 | |
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| 397 | if escape_newlines: |
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| 398 | line += ' [[BR]]' |
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| 399 | self.in_list_item = False |
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| 400 | self.in_quote = False |
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| 401 | # Throw a bunch of regexps on the problem |
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| 402 | result = re.sub(self.wiki.rules, self.replace, line) |
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| 403 | |
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| 404 | if not self.in_list_item: |
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| 405 | self.close_list() |
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| 406 | |
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| 407 | if not self.in_quote: |
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| 408 | self.close_indentation() |
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| 409 | |
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| 410 | if self.in_def_list and not line.startswith(' '): |
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| 411 | self.close_def_list() |
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| 412 | |
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| 413 | if self.in_table and line.strip()[0:2] != '||': |
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| 414 | self.close_table() |
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| 415 | |
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| 416 | if len(result) and not self.in_list_item and not self.in_def_list \ |
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| 417 | and not self.in_table: |
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| 418 | self.open_paragraph() |
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| 419 | self.out.write(result + os.linesep) |
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| 420 | self.close_table_row() |
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| 421 | |
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| 422 | self.close_table() |
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| 423 | self.close_paragraph() |
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| 424 | self.close_indentation() |
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| 425 | self.close_list() |
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| 426 | self.close_def_list() |
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| 427 | self.close_code_blocks() |
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| 428 | |
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| 429 | #print links as foot notes |
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| 430 | self.out.write('----------------------------------------------------------------------------' + os.linesep) |
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| 431 | for link in self.links: |
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| 432 | self.out.write(link + os.linesep) |
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| 433 | |
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| 434 | class NotifyOneLinerFormatter(NotifyFormatter): |
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| 435 | """ |
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| 436 | A special version of the wiki formatter that only implement a |
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| 437 | subset of the wiki formatting functions. This version is useful |
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| 438 | for rendering short wiki-formatted messages on a single line |
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| 439 | """ |
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| 440 | flavor = 'oneliner' |
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| 441 | |
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| 442 | def __init__(self, env, absurls=False, db=None, req=None): |
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| 443 | NotifyFormatter.__init__(self, env, req, absurls, db) |
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| 444 | |
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| 445 | # Override a few formatters to disable some wiki syntax in "oneliner"-mode |
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| 446 | def _list_formatter(self, match, fullmatch): return match |
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| 447 | def _indent_formatter(self, match, fullmatch): return match |
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| 448 | def _citation_formatter(self, match, fullmatch): |
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| 449 | return escape(match, False) |
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| 450 | def _heading_formatter(self, match, fullmatch): |
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| 451 | return escape(match, False) |
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| 452 | def _definition_formatter(self, match, fullmatch): |
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| 453 | return escape(match, False) |
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| 454 | def _table_cell_formatter(self, match, fullmatch): return match |
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| 455 | def _last_table_cell_formatter(self, match, fullmatch): return match |
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| 456 | |
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| 457 | def _macro_formatter(self, match, fullmatch): |
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| 458 | name = fullmatch.group('macroname') |
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| 459 | if name.lower() == 'br': |
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| 460 | return ' ' |
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| 461 | else: |
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| 462 | return '' #'[[%s%s]]' % (name, args and '(...)' or '') |
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| 463 | |
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| 464 | def format(self, text, out, shorten=False): |
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| 465 | if not text: |
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| 466 | return |
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| 467 | self.out = out |
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| 468 | self._open_tags = [] |
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| 469 | |
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| 470 | # Simplify code blocks |
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| 471 | in_code_block = 0 |
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| 472 | processor = None |
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| 473 | buf = StringIO() |
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| 474 | for line in text.strip().splitlines(): |
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| 475 | if line.strip() == Formatter.STARTBLOCK: |
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| 476 | in_code_block += 1 |
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| 477 | elif line.strip() == Formatter.ENDBLOCK: |
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| 478 | if in_code_block: |
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| 479 | in_code_block -= 1 |
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| 480 | if in_code_block == 0: |
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| 481 | if processor != 'comment': |
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| 482 | buf.write(' ![...]' + os.linesep) |
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| 483 | processor = None |
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| 484 | elif in_code_block: |
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| 485 | if not processor: |
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| 486 | if line.startswith('#!'): |
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| 487 | processor = line[2:].strip() |
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| 488 | else: |
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| 489 | buf.write(line + os.linesep) |
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| 490 | result = buf.getvalue()[:-1] |
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| 491 | |
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| 492 | if shorten: |
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| 493 | result = shorten_line(result) |
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| 494 | |
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| 495 | result = re.sub(self.wiki.rules, self.replace, result) |
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| 496 | result = result.replace('[...]', '[…]') |
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| 497 | if result.endswith('...'): |
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| 498 | result = result[:-3] + '…' |
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| 499 | |
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| 500 | # Close all open 'one line'-tags |
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| 501 | result += self.close_tag(None) |
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| 502 | # Flush unterminated code blocks |
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| 503 | if in_code_block > 0: |
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| 504 | result += '[…]' |
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| 505 | out.write(result) |
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| 506 | |
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| 507 | #convenience function |
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| 508 | def wiki_to_notifyoneliner(wikitext, env, db=None, shorten=False, absurls=False, |
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| 509 | req=None, links=None): |
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| 510 | if not wikitext: |
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| 511 | return Markup() |
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| 512 | out = StringIO() |
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| 513 | nolf = NotifyOneLinerFormatter(env, absurls, db, req=req) |
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| 514 | nolf.links = links |
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| 515 | nolf.format(wikitext, out, shorten) |
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| 516 | return Markup(out.getvalue()) |
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| 517 | |
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| 518 | |
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| 519 | if __name__ == '__main__': |
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| 520 | import trac.env |
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| 521 | from trac.wiki.model import WikiPage |
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| 522 | from trac.web.href import Href |
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| 523 | req = None |
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| 524 | env = trac.env.open_environment('/var/trac/WAdmin') |
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| 525 | #request usually contains these but I do not have one |
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| 526 | env.abs_href = Href('http://192.168.80.129/trac/WAdmin/') |
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| 527 | env.href = Href(urlsplit(env.abs_href.base)[2]) |
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| 528 | page = WikiPage(env, 'WikiFormatting') |
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| 529 | out = StringIO() |
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| 530 | NotifyFormatter(env).format(page.text, out) |
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| 531 | print out.getvalue() |
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| 532 | |
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| 533 | |
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