Mercurial > libervia-backend
annotate libervia/backend/plugins/plugin_syntax_wiki_dotclear.py @ 4284:3a550e9a2b55
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| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 14 Jul 2024 16:47:45 +0200 |
| parents | 0d7bb4df2343 |
| children |
| rev | line source |
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| 3028 | 1 #!/usr/bin/env python3 |
| 3137 | 2 |
| 1806 | 3 |
| 4 # SàT plugin for Dotclear Wiki Syntax | |
| 3479 | 5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) |
| 1806 | 6 |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 # XXX: ref used: http://dotclear.org/documentation/2.0/usage/syntaxes#wiki-syntax-and-xhtml-equivalent | |
| 21 | |
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22 from libervia.backend.core.i18n import _ |
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23 from libervia.backend.core.log import getLogger |
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24 |
| 1806 | 25 log = getLogger(__name__) |
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26 from libervia.backend.core.constants import Const as C |
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27 from libervia.backend.core import exceptions |
| 1806 | 28 from twisted.words.xish import domish |
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29 from libervia.backend.tools import xml_tools |
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30 import copy |
| 1806 | 31 import re |
| 32 | |
| 33 PLUGIN_INFO = { | |
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34 C.PI_NAME: "Dotclear Wiki Syntax Plugin", |
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35 C.PI_IMPORT_NAME: "SYNT_DC_WIKI", |
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36 C.PI_TYPE: C.PLUG_TYPE_SYNTAXE, |
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37 C.PI_DEPENDENCIES: ["TEXT_SYNTAXES"], |
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38 C.PI_MAIN: "DCWikiSyntax", |
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39 C.PI_HANDLER: "", |
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40 C.PI_DESCRIPTION: _("""Implementation of Dotclear wiki syntax"""), |
| 1806 | 41 } |
| 42 | |
| 3028 | 43 NOTE_TPL = "[{}]" # Note template |
| 44 NOTE_A_REV_TPL = "rev_note_{}" | |
| 45 NOTE_A_TPL = "note_{}" | |
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46 ESCAPE_CHARS_BASE = r"(?P<escape_char>[][{}%|\\/*#@{{}}~$-])" |
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47 ESCAPE_CHARS_EXTRA = ( |
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48 r"!?_+'()" # These chars are not escaped in XHTML => dc_wiki conversion, |
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49 ) |
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50 # but are used in the other direction |
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51 ESCAPE_CHARS = ESCAPE_CHARS_BASE.format("") |
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52 FLAG_UL = "ul" # must be the name of the element |
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53 FLAG_OL = "ol" |
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54 ELT_WITH_STYLE = ("img", "div") # elements where a style attribute is expected |
| 1806 | 55 |
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56 wiki = [ |
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57 r"\\" + ESCAPE_CHARS_BASE.format(ESCAPE_CHARS_EXTRA), |
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58 r"^!!!!!(?P<h1_title>.+?)$", |
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59 r"^!!!!(?P<h2_title>.+?)$", |
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60 r"^!!!(?P<h3_title>.+?)$", |
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61 r"^!!(?P<h4_title>.+?)$", |
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62 r"^!(?P<h5_title>.+?)$", |
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63 r"^----$(?P<horizontal_rule>)", |
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64 r"^\*(?P<list_bullet>.*?)$", |
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65 r"^#(?P<list_ordered>.*?)$", |
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66 r"^ (?P<preformated>.*?)$", |
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67 r"^> +?(?P<quote>.*?)$", |
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68 r"''(?P<emphasis>.+?)''", |
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69 r"__(?P<strong_emphasis>.+?)__", |
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70 r"%%%(?P<line_break>)", |
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71 r"\+\+(?P<insertion>.+?)\+\+", |
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72 r"--(?P<deletion>.+?)--", |
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73 r"\[(?P<link>.+?)\]", |
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74 r"\(\((?P<image>.+?)\)\)", |
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75 r"~(?P<anchor>.+?)~", |
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76 r"\?\?(?P<acronym>.+?\|.+?)\?\?", |
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77 r"{{(?P<inline_quote>.+?)}}", |
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78 r"@@(?P<code>.+?)@@", |
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79 r"\$\$(?P<footnote>.+?)\$\$", |
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80 r"(?P<text>.+?)", |
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81 ] |
| 1806 | 82 |
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83 wiki_re = re.compile("|".join(wiki), re.MULTILINE | re.DOTALL) |
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84 wiki_block_level_re = re.compile( |
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85 r"^///html(?P<html>.+?)///\n\n|(?P<paragraph>.+?)(?:\n{2,}|\Z)", |
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86 re.MULTILINE | re.DOTALL, |
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87 ) |
| 1806 | 88 |
| 89 | |
| 90 class DCWikiParser(object): | |
| 91 def __init__(self): | |
| 92 self._footnotes = None | |
| 3028 | 93 for i in range(5): |
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94 setattr( |
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95 self, |
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96 "parser_h{}_title".format(i), |
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97 lambda string, parent, i=i: self._parser_title( |
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98 string, parent, "h{}".format(i) |
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99 ), |
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100 ) |
| 1806 | 101 |
| 102 def parser_paragraph(self, string, parent): | |
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103 p_elt = parent.addElement("p") |
| 1806 | 104 self._parse(string, p_elt) |
| 105 | |
| 106 def parser_html(self, string, parent): | |
| 107 wrapped_html = "<div>{}</div>".format(string) | |
| 108 try: | |
| 109 div_elt = xml_tools.ElementParser()(wrapped_html) | |
| 110 except domish.ParserError as e: | |
| 3028 | 111 log.warning("Error while parsing HTML content, ignoring it: {}".format(e)) |
| 1806 | 112 return |
| 113 children = list(div_elt.elements()) | |
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114 if len(children) == 1 and children[0].name == "div": |
| 1806 | 115 div_elt = children[0] |
| 116 parent.addChild(div_elt) | |
| 117 | |
| 118 def parser_escape_char(self, string, parent): | |
| 119 parent.addContent(string) | |
| 120 | |
| 121 def _parser_title(self, string, parent, name): | |
| 122 elt = parent.addElement(name) | |
| 123 elt.addContent(string) | |
| 124 | |
| 125 def parser_horizontal_rule(self, string, parent): | |
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126 parent.addElement("hr") |
| 1806 | 127 |
| 128 def _parser_list(self, string, parent, list_type): | |
| 129 depth = 0 | |
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130 while string[depth : depth + 1] == "*": |
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131 depth += 1 |
| 1806 | 132 |
| 133 string = string[depth:].lstrip() | |
| 134 | |
| 3028 | 135 for i in range(depth + 1): |
| 1806 | 136 list_elt = getattr(parent, list_type) |
| 137 if not list_elt: | |
| 138 parent = parent.addElement(list_type) | |
| 139 else: | |
| 140 parent = list_elt | |
| 141 | |
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142 li_elt = parent.addElement("li") |
| 1806 | 143 self._parse(string, li_elt) |
| 144 | |
| 145 def parser_list_bullet(self, string, parent): | |
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146 self._parser_list(string, parent, "ul") |
| 1806 | 147 |
| 148 def parser_list_ordered(self, string, parent): | |
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149 self._parser_list(string, parent, "ol") |
| 1806 | 150 |
| 151 def parser_preformated(self, string, parent): | |
| 152 pre_elt = parent.pre | |
| 153 if pre_elt is None: | |
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154 pre_elt = parent.addElement("pre") |
| 1806 | 155 else: |
| 156 # we are on a new line, and this is important for <pre/> | |
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157 pre_elt.addContent("\n") |
| 1806 | 158 pre_elt.addContent(string) |
| 159 | |
| 160 def parser_quote(self, string, parent): | |
| 161 blockquote_elt = parent.blockquote | |
| 162 if blockquote_elt is None: | |
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163 blockquote_elt = parent.addElement("blockquote") |
| 1806 | 164 p_elt = blockquote_elt.p |
| 165 if p_elt is None: | |
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166 p_elt = blockquote_elt.addElement("p") |
| 1806 | 167 else: |
| 3028 | 168 string = "\n" + string |
| 1806 | 169 |
| 170 self._parse(string, p_elt) | |
| 171 | |
| 172 def parser_emphasis(self, string, parent): | |
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173 em_elt = parent.addElement("em") |
| 1806 | 174 self._parse(string, em_elt) |
| 175 | |
| 176 def parser_strong_emphasis(self, string, parent): | |
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177 strong_elt = parent.addElement("strong") |
| 1806 | 178 self._parse(string, strong_elt) |
| 179 | |
| 180 def parser_line_break(self, string, parent): | |
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181 parent.addElement("br") |
| 1806 | 182 |
| 183 def parser_insertion(self, string, parent): | |
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184 ins_elt = parent.addElement("ins") |
| 1806 | 185 self._parse(string, ins_elt) |
| 186 | |
| 187 def parser_deletion(self, string, parent): | |
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188 del_elt = parent.addElement("del") |
| 1806 | 189 self._parse(string, del_elt) |
| 190 | |
| 191 def parser_link(self, string, parent): | |
| 3028 | 192 url_data = string.split("|") |
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193 a_elt = parent.addElement("a") |
| 1806 | 194 length = len(url_data) |
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195 if length == 1: |
| 1806 | 196 url = url_data[0] |
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197 a_elt["href"] = url |
| 1806 | 198 a_elt.addContent(url) |
| 199 else: | |
| 200 name = url_data[0] | |
| 201 url = url_data[1] | |
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202 a_elt["href"] = url |
| 1806 | 203 a_elt.addContent(name) |
| 204 if length >= 3: | |
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205 a_elt["lang"] = url_data[2] |
| 1806 | 206 if length >= 4: |
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207 a_elt["title"] = url_data[3] |
| 1806 | 208 if length > 4: |
| 3028 | 209 log.warning("too much data for url, ignoring extra data") |
| 1806 | 210 |
| 211 def parser_image(self, string, parent): | |
| 3028 | 212 image_data = string.split("|") |
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213 img_elt = parent.addElement("img") |
| 1806 | 214 |
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215 for idx, attribute in enumerate(("src", "alt", "position", "longdesc")): |
| 1806 | 216 try: |
| 217 data = image_data[idx] | |
| 218 except IndexError: | |
| 219 break | |
| 220 | |
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221 if attribute != "position": |
| 1806 | 222 img_elt[attribute] = data |
| 223 else: | |
| 224 data = data.lower() | |
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225 if data in ("l", "g"): |
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226 img_elt["style"] = "display:block; float:left; margin:0 1em 1em 0" |
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227 elif data in ("r", "d"): |
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228 img_elt["style"] = "display:block; float:right; margin:0 0 1em 1em" |
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229 elif data == "c": |
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230 img_elt["style"] = ( |
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231 "display:block; margin-left:auto; margin-right:auto" |
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232 ) |
| 1806 | 233 else: |
| 3028 | 234 log.warning("bad position argument for image, ignoring it") |
| 1806 | 235 |
| 236 def parser_anchor(self, string, parent): | |
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237 a_elt = parent.addElement("a") |
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238 a_elt["id"] = string |
| 1806 | 239 |
| 240 def parser_acronym(self, string, parent): | |
| 3028 | 241 acronym, title = string.split("|", 1) |
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242 acronym_elt = parent.addElement("acronym", content=acronym) |
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243 acronym_elt["title"] = title |
| 1806 | 244 |
| 245 def parser_inline_quote(self, string, parent): | |
| 3028 | 246 quote_data = string.split("|") |
| 1806 | 247 quote = quote_data[0] |
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248 q_elt = parent.addElement("q", content=quote) |
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249 for idx, attribute in enumerate(("lang", "cite"), 1): |
| 1806 | 250 try: |
| 251 data = quote_data[idx] | |
| 252 except IndexError: | |
| 253 break | |
| 254 q_elt[attribute] = data | |
| 255 | |
| 256 def parser_code(self, string, parent): | |
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257 parent.addElement("code", content=string) |
| 1806 | 258 |
| 259 def parser_footnote(self, string, parent): | |
| 260 idx = len(self._footnotes) + 1 | |
| 261 note_txt = NOTE_TPL.format(idx) | |
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262 sup_elt = parent.addElement("sup") |
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263 sup_elt["class"] = "note" |
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264 a_elt = sup_elt.addElement("a", content=note_txt) |
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265 a_elt["id"] = NOTE_A_REV_TPL.format(idx) |
| 3028 | 266 a_elt["href"] = "#{}".format(NOTE_A_TPL.format(idx)) |
| 1806 | 267 |
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268 p_elt = domish.Element((None, "p")) |
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269 a_elt = p_elt.addElement("a", content=note_txt) |
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270 a_elt["id"] = NOTE_A_TPL.format(idx) |
| 3028 | 271 a_elt["href"] = "#{}".format(NOTE_A_REV_TPL.format(idx)) |
| 1806 | 272 self._parse(string, p_elt) |
| 273 # footnotes are actually added at the end of the parsing | |
| 274 self._footnotes.append(p_elt) | |
| 275 | |
| 276 def parser_text(self, string, parent): | |
| 277 parent.addContent(string) | |
| 278 | |
| 279 def _parse(self, string, parent, block_level=False): | |
| 280 regex = wiki_block_level_re if block_level else wiki_re | |
| 281 | |
| 282 for match in regex.finditer(string): | |
| 283 if match.lastgroup is None: | |
| 284 parent.addContent(string) | |
| 285 return | |
| 286 matched = match.group(match.lastgroup) | |
| 287 try: | |
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288 parser = getattr(self, "parser_{}".format(match.lastgroup)) |
| 1806 | 289 except AttributeError: |
| 3028 | 290 log.warning("No parser found for {}".format(match.lastgroup)) |
| 1806 | 291 # parent.addContent(string) |
| 292 continue | |
| 293 parser(matched, parent) | |
| 294 | |
| 295 def parse(self, string): | |
| 296 self._footnotes = [] | |
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297 div_elt = domish.Element((None, "div")) |
| 1806 | 298 self._parse(string, parent=div_elt, block_level=True) |
| 299 if self._footnotes: | |
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300 foot_div_elt = div_elt.addElement("div") |
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301 foot_div_elt["class"] = "footnotes" |
| 1806 | 302 # we add a simple horizontal rule which can be customized |
| 303 # with footnotes class, instead of a text which would need | |
| 304 # to be translated | |
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305 foot_div_elt.addElement("hr") |
| 1806 | 306 for elt in self._footnotes: |
| 307 foot_div_elt.addChild(elt) | |
| 308 return div_elt | |
| 309 | |
| 310 | |
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311 class XHTMLParser(object): |
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312 def __init__(self): |
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313 self.flags = None |
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314 self.toto = 0 |
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315 self.footnotes = None # will hold a map from url to buffer id |
| 3028 | 316 for i in range(1, 6): |
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317 setattr( |
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318 self, |
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319 "parser_h{}".format(i), |
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320 lambda elt, buf, level=i: self.parser_heading(elt, buf, level), |
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321 ) |
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322 |
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323 def parser_a(self, elt, buf): |
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324 try: |
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325 url = elt["href"] |
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326 except KeyError: |
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327 # probably an anchor |
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328 try: |
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329 id_ = elt["id"] |
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330 if not id_: |
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331 # we don't want empty values |
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332 raise KeyError |
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333 except KeyError: |
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334 self.parser_generic(elt, buf) |
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335 else: |
| 3028 | 336 buf.append("~~{}~~".format(id_)) |
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337 return |
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338 |
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339 link_data = [url] |
| 3028 | 340 name = str(elt) |
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341 if name != url: |
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342 link_data.insert(0, name) |
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343 |
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344 lang = elt.getAttribute("lang") |
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345 title = elt.getAttribute("title") |
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346 if lang is not None: |
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347 link_data.append(lang) |
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348 elif title is not None: |
| 3028 | 349 link_data.appand("") |
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350 if title is not None: |
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351 link_data.append(title) |
| 3028 | 352 buf.append("[") |
| 353 buf.append("|".join(link_data)) | |
| 354 buf.append("]") | |
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355 |
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356 def parser_acronym(self, elt, buf): |
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357 try: |
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358 title = elt["title"] |
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359 except KeyError: |
| 3028 | 360 log.debug("Acronyme without title, using generic parser") |
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361 self.parser_generic(elt, buf) |
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362 return |
| 3028 | 363 buf.append("??{}|{}??".format(str(elt), title)) |
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364 |
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365 def parser_blockquote(self, elt, buf): |
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366 # we remove wrapping <p> to avoid empty line with "> " |
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367 children = list( |
| 3028 | 368 [child for child in elt.children if str(child).strip() not in ("", "\n")] |
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369 ) |
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370 if len(children) == 1 and children[0].name == "p": |
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371 elt = children[0] |
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372 tmp_buf = [] |
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373 self.parse_children(elt, tmp_buf) |
| 3028 | 374 blockquote = "> " + "\n> ".join("".join(tmp_buf).split("\n")) |
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375 buf.append(blockquote) |
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376 |
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377 def parser_br(self, elt, buf): |
| 3028 | 378 buf.append("%%%") |
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379 |
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380 def parser_code(self, elt, buf): |
| 3028 | 381 buf.append("@@") |
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382 self.parse_children(elt, buf) |
| 3028 | 383 buf.append("@@") |
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384 |
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385 def parser_del(self, elt, buf): |
| 3028 | 386 buf.append("--") |
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387 self.parse_children(elt, buf) |
| 3028 | 388 buf.append("--") |
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389 |
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390 def parser_div(self, elt, buf): |
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391 if elt.getAttribute("class") == "footnotes": |
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392 self.parser_footnote(elt, buf) |
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393 else: |
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394 self.parse_children(elt, buf, block=True) |
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395 |
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396 def parser_em(self, elt, buf): |
| 3028 | 397 buf.append("''") |
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398 self.parse_children(elt, buf) |
| 3028 | 399 buf.append("''") |
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400 |
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401 def parser_h6(self, elt, buf): |
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402 # XXX: <h6/> heading is not managed by wiki syntax |
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403 # so we handle it with a <h5/> |
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404 elt = copy.copy(elt) # we don't want to change to original element |
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405 elt.name = "h5" |
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406 self._parse(elt, buf) |
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407 |
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408 def parser_hr(self, elt, buf): |
| 3028 | 409 buf.append("\n----\n") |
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410 |
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411 def parser_img(self, elt, buf): |
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412 try: |
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413 url = elt["src"] |
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414 except KeyError: |
| 3028 | 415 log.warning("Ignoring <img/> without src") |
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416 return |
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417 |
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418 image_data = [url] |
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419 |
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420 alt = elt.getAttribute("alt") |
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421 style = elt.getAttribute("style", "") |
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422 desc = elt.getAttribute("longdesc") |
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423 |
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424 if "0 1em 1em 0" in style: |
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425 position = "L" |
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426 elif "0 0 1em 1em" in style: |
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427 position = "R" |
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428 elif "auto" in style: |
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429 position = "C" |
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430 else: |
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431 position = None |
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432 |
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433 if alt: |
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434 image_data.append(alt) |
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435 elif position or desc: |
| 3028 | 436 image_data.append("") |
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437 |
|
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438 if position: |
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439 image_data.append(position) |
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440 elif desc: |
| 3028 | 441 image_data.append("") |
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442 |
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443 if desc: |
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444 image_data.append(desc) |
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445 |
| 3028 | 446 buf.append("((") |
| 447 buf.append("|".join(image_data)) | |
| 448 buf.append("))") | |
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449 |
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450 def parser_ins(self, elt, buf): |
| 3028 | 451 buf.append("++") |
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452 self.parse_children(elt, buf) |
| 3028 | 453 buf.append("++") |
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454 |
|
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455 def parser_li(self, elt, buf): |
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456 flag = None |
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457 current_flag = None |
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458 bullets = [] |
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459 for flag in reversed(self.flags): |
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460 if flag in (FLAG_UL, FLAG_OL): |
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461 if current_flag is None: |
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462 current_flag = flag |
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463 if flag == current_flag: |
| 3028 | 464 bullets.append("*" if flag == FLAG_UL else "#") |
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465 else: |
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466 break |
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467 |
| 3028 | 468 if flag != current_flag and buf[-1] == " ": |
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469 # this trick is to avoid a space when we switch |
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470 # from (un)ordered to the other type on the same row |
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471 # e.g. *# unorder + ordered item |
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472 del buf[-1] |
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473 |
|
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474 buf.extend(bullets) |
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475 |
| 3028 | 476 buf.append(" ") |
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477 self.parse_children(elt, buf) |
| 3028 | 478 buf.append("\n") |
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479 |
|
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480 def parser_ol(self, elt, buf): |
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481 self.parser_list(elt, buf, FLAG_OL) |
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482 |
|
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483 def parser_p(self, elt, buf): |
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|
484 self.parse_children(elt, buf) |
| 3028 | 485 buf.append("\n\n") |
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|
486 |
|
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487 def parser_pre(self, elt, buf): |
| 3028 | 488 pre = "".join( |
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489 [ |
| 3028 | 490 child.toXml() if domish.IElement.providedBy(child) else str(child) |
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491 for child in elt.children |
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492 ] |
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493 ) |
| 3028 | 494 pre = " " + "\n ".join(pre.split("\n")) |
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495 buf.append(pre) |
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496 |
|
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497 def parser_q(self, elt, buf): |
| 3028 | 498 quote_data = [str(elt)] |
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499 |
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500 lang = elt.getAttribute("lang") |
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501 cite = elt.getAttribute("url") |
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|
502 |
|
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|
503 if lang: |
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|
504 quote_data.append(lang) |
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|
505 elif cite: |
| 3028 | 506 quote_data.append("") |
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|
507 |
|
0d3110341947
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|
508 if cite: |
|
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509 quote_data.append(cite) |
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510 |
| 3028 | 511 buf.append("{{") |
| 512 buf.append("|".join(quote_data)) | |
| 513 buf.append("}}") | |
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514 |
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515 def parser_span(self, elt, buf): |
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516 self.parse_children(elt, buf, block=True) |
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517 |
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518 def parser_strong(self, elt, buf): |
| 3028 | 519 buf.append("__") |
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520 self.parse_children(elt, buf) |
| 3028 | 521 buf.append("__") |
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522 |
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523 def parser_sup(self, elt, buf): |
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524 # sup is mainly used for footnotes, so we check if we have an anchor inside |
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525 children = list( |
| 3028 | 526 [child for child in elt.children if str(child).strip() not in ("", "\n")] |
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527 ) |
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528 if ( |
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529 len(children) == 1 |
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530 and domish.IElement.providedBy(children[0]) |
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531 and children[0].name == "a" |
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532 and "#" in children[0].getAttribute("href", "") |
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533 ): |
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534 url = children[0]["href"] |
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535 note_id = url[url.find("#") + 1 :] |
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536 if not note_id: |
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537 log.warning("bad link found in footnote") |
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|
538 self.parser_generic(elt, buf) |
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539 return |
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540 # this looks like a footnote |
| 3028 | 541 buf.append("$$") |
| 542 buf.append(" ") # placeholder | |
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543 self.footnotes[note_id] = len(buf) - 1 |
| 3028 | 544 buf.append("$$") |
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545 else: |
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546 self.parser_generic(elt, buf) |
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547 |
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548 def parser_ul(self, elt, buf): |
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549 self.parser_list(elt, buf, FLAG_UL) |
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550 |
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551 def parser_list(self, elt, buf, type_): |
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552 self.flags.append(type_) |
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553 self.parse_children(elt, buf, block=True) |
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554 idx = 0 |
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555 for flag in reversed(self.flags): |
|
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556 idx -= 1 |
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557 if flag == type_: |
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558 del self.flags[idx] |
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559 break |
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560 |
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561 if idx == 0: |
| 3028 | 562 raise exceptions.InternalError("flag has been removed by an other parser") |
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563 |
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564 def parser_heading(self, elt, buf, level): |
| 3028 | 565 buf.append((6 - level) * "!") |
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566 for child in elt.children: |
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567 # we ignore other elements for a Hx title |
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568 self.parser_text(child, buf) |
| 3028 | 569 buf.append("\n") |
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570 |
|
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571 def parser_footnote(self, elt, buf): |
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572 for elt in elt.elements(): |
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573 # all children other than <p/> are ignored |
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574 if elt.name == "p": |
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575 a_elt = elt.a |
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576 if a_elt is None: |
|
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577 log.warning( |
| 3028 | 578 "<p/> element doesn't contain <a/> in footnote, ignoring it" |
|
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579 ) |
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580 continue |
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|
581 try: |
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582 note_idx = self.footnotes[a_elt["id"]] |
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|
583 except KeyError: |
| 3028 | 584 log.warning("Note id doesn't match any known note, ignoring it") |
|
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|
585 # we create a dummy element to parse all children after the <a/> |
|
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586 dummy_elt = domish.Element((None, "note")) |
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587 a_idx = elt.children.index(a_elt) |
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588 dummy_elt.children = elt.children[a_idx + 1 :] |
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|
589 note_buf = [] |
|
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|
590 self.parse_children(dummy_elt, note_buf) |
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|
591 # now we can replace the placeholder |
| 3028 | 592 buf[note_idx] = "".join(note_buf) |
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593 |
|
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|
594 def parser_text(self, txt, buf, keep_whitespaces=False): |
| 3028 | 595 txt = str(txt) |
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596 if not keep_whitespaces: |
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597 # we get text and only let one inter word space |
| 3028 | 598 txt = " ".join(txt.split()) |
|
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599 txt = re.sub(ESCAPE_CHARS, r"\\\1", txt) |
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|
600 if txt: |
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|
601 buf.append(txt) |
|
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|
602 return txt |
|
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|
603 |
|
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|
604 def parser_generic(self, elt, buf): |
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|
605 # as dotclear wiki syntax handle arbitrary XHTML code |
|
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|
606 # we use this feature to add elements that we don't know |
| 3028 | 607 buf.append("\n\n///html\n{}\n///\n\n".format(elt.toXml())) |
|
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|
608 |
|
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|
609 def parse_children(self, elt, buf, block=False): |
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610 first_visible = True |
|
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|
611 for child in elt.children: |
|
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|
612 if not block and not first_visible and buf and buf[-1][-1] not in (" ", "\n"): |
|
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|
613 # we add separation if it isn't already there |
| 3028 | 614 buf.append(" ") |
|
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615 if domish.IElement.providedBy(child): |
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|
616 self._parse(child, buf) |
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617 first_visible = False |
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618 else: |
|
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619 appended = self.parser_text(child, buf) |
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620 if appended: |
|
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|
621 first_visible = False |
|
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|
622 |
|
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|
623 def _parse(self, elt, buf): |
|
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|
624 elt_name = elt.name.lower() |
|
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|
625 style = elt.getAttribute("style") |
|
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|
626 if style and elt_name not in ELT_WITH_STYLE: |
|
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627 # if we have style we use generic parser to put raw HTML |
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628 # to avoid losing it |
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629 parser = self.parser_generic |
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630 else: |
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631 try: |
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632 parser = getattr(self, "parser_{}".format(elt_name)) |
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633 except AttributeError: |
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634 log.debug( |
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635 "Can't find parser for {} element, using generic one".format(elt.name) |
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636 ) |
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637 parser = self.parser_generic |
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638 parser(elt, buf) |
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Goffi <goffi@goffi.org>
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639 |
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640 def parse(self, elt): |
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641 self.flags = [] |
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642 self.footnotes = {} |
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643 buf = [] |
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644 self._parse(elt, buf) |
| 3028 | 645 return "".join(buf) |
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646 |
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647 def parseString(self, string): |
| 3028 | 648 wrapped_html = "<div>{}</div>".format(string) |
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649 try: |
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650 div_elt = xml_tools.ElementParser()(wrapped_html) |
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651 except domish.ParserError as e: |
| 3028 | 652 log.warning("Error while parsing HTML content: {}".format(e)) |
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653 return |
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654 children = list(div_elt.elements()) |
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655 if len(children) == 1 and children[0].name == "div": |
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656 div_elt = children[0] |
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657 return self.parse(div_elt) |
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658 |
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659 |
| 1806 | 660 class DCWikiSyntax(object): |
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661 SYNTAX_NAME = "wiki_dotclear" |
| 1806 | 662 |
| 663 def __init__(self, host): | |
| 3028 | 664 log.info(_("Dotclear wiki syntax plugin initialization")) |
| 1806 | 665 self.host = host |
| 666 self._dc_parser = DCWikiParser() | |
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667 self._xhtml_parser = XHTMLParser() |
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668 self._stx = self.host.plugins["TEXT_SYNTAXES"] |
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669 self._stx.add_syntax( |
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670 self.SYNTAX_NAME, self.parse_wiki, self.parse_xhtml, [self._stx.OPT_NO_THREAD] |
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671 ) |
| 1806 | 672 |
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673 def parse_wiki(self, wiki_stx): |
| 1806 | 674 div_elt = self._dc_parser.parse(wiki_stx) |
| 675 return div_elt.toXml() | |
| 676 | |
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677 def parse_xhtml(self, xhtml): |
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678 return self._xhtml_parser.parseString(xhtml) |