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| 1 # Copyright (c) 2001-2004 Twisted Matrix Laboratories. | |
| 2 # See LICENSE for details. | |
| 3 | |
| 4 # | |
| 5 """Rudimentary slide support for Lore. | |
| 6 | |
| 7 TODO: | |
| 8 - Complete mgp output target | |
| 9 - syntax highlighting | |
| 10 - saner font handling | |
| 11 - probably lots more | |
| 12 - Add HTML output targets | |
| 13 - one slides per page (with navigation links) | |
| 14 - all in one page | |
| 15 | |
| 16 Example input file:: | |
| 17 <html> | |
| 18 | |
| 19 <head><title>Title of talk</title></head> | |
| 20 | |
| 21 <body> | |
| 22 <h1>Title of talk</h1> | |
| 23 | |
| 24 <h2>First Slide</h2> | |
| 25 | |
| 26 <ul> | |
| 27 <li>Bullet point</li> | |
| 28 <li>Look ma, I'm <strong>bold</strong>!</li> | |
| 29 <li>... etc ...</li> | |
| 30 </ul> | |
| 31 | |
| 32 | |
| 33 <h2>Second Slide</h2> | |
| 34 | |
| 35 <pre class="python"> | |
| 36 # Sample code sample. | |
| 37 print "Hello, World!" | |
| 38 </pre> | |
| 39 | |
| 40 </body> | |
| 41 | |
| 42 </html> | |
| 43 """ | |
| 44 from __future__ import nested_scopes | |
| 45 | |
| 46 from twisted.lore import default | |
| 47 from twisted.web import domhelpers, microdom | |
| 48 from twisted.python import text | |
| 49 # These should be factored out | |
| 50 from twisted.lore.latex import BaseLatexSpitter, LatexSpitter, processFile, \ | |
| 51 getLatexText, HeadingLatexSpitter | |
| 52 from twisted.lore.tree import getHeaders | |
| 53 from tree import removeH1, fixAPI, fontifyPython, \ | |
| 54 addPyListings, addHTMLListings, setTitle | |
| 55 | |
| 56 import os, os.path, re | |
| 57 from cStringIO import StringIO | |
| 58 | |
| 59 hacked_entities = { 'amp': ' &', 'gt': ' >', 'lt': ' <', 'quot': ' "', | |
| 60 'copy': ' (c)'} | |
| 61 | |
| 62 entities = { 'amp': '&', 'gt': '>', 'lt': '<', 'quot': '"', | |
| 63 'copy': '(c)'} | |
| 64 | |
| 65 class MagicpointOutput(BaseLatexSpitter): | |
| 66 bulletDepth = 0 | |
| 67 | |
| 68 def writeNodeData(self, node): | |
| 69 buf = StringIO() | |
| 70 getLatexText(node, buf.write, entities=hacked_entities) | |
| 71 data = buf.getvalue().rstrip().replace('\n', ' ') | |
| 72 self.writer(re.sub(' +', ' ', data)) | |
| 73 | |
| 74 def visitNode_title(self, node): | |
| 75 self.title = domhelpers.getNodeText(node) | |
| 76 | |
| 77 def visitNode_body(self, node): | |
| 78 # Adapted from tree.generateToC | |
| 79 self.fontStack = [('standard', None)] | |
| 80 | |
| 81 # Title slide | |
| 82 self.writer(self.start_h2) | |
| 83 self.writer(self.title) | |
| 84 self.writer(self.end_h2) | |
| 85 | |
| 86 self.writer('%center\n\n\n\n\n') | |
| 87 for authorNode in domhelpers.findElementsWithAttribute(node, 'class', 'a
uthor'): | |
| 88 getLatexText(authorNode, self.writer, entities=entities) | |
| 89 self.writer('\n') | |
| 90 | |
| 91 # Table of contents | |
| 92 self.writer(self.start_h2) | |
| 93 self.writer(self.title) | |
| 94 self.writer(self.end_h2) | |
| 95 | |
| 96 for element in getHeaders(node): | |
| 97 level = int(element.tagName[1])-1 | |
| 98 self.writer(level * '\t') | |
| 99 self.writer(domhelpers.getNodeText(element)) | |
| 100 self.writer('\n') | |
| 101 | |
| 102 self.visitNodeDefault(node) | |
| 103 | |
| 104 def visitNode_div_author(self, node): | |
| 105 # Skip this node; it's already been used by visitNode_body | |
| 106 pass | |
| 107 | |
| 108 def visitNode_div_pause(self, node): | |
| 109 self.writer('%pause\n') | |
| 110 | |
| 111 def visitNode_pre(self, node): | |
| 112 # TODO: Syntax highlighting | |
| 113 buf = StringIO() | |
| 114 getLatexText(node, buf.write, entities=entities) | |
| 115 data = buf.getvalue() | |
| 116 data = text.removeLeadingTrailingBlanks(data) | |
| 117 lines = data.split('\n') | |
| 118 self.fontStack.append(('typewriter', 4)) | |
| 119 self.writer('%' + self.fontName() + '\n') | |
| 120 for line in lines: | |
| 121 self.writer(' ' + line + '\n') | |
| 122 del self.fontStack[-1] | |
| 123 self.writer('%' + self.fontName() + '\n') | |
| 124 | |
| 125 def visitNode_ul(self, node): | |
| 126 if self.bulletDepth > 0: | |
| 127 self.writer(self._start_ul) | |
| 128 self.bulletDepth += 1 | |
| 129 self.start_li = self._start_li * self.bulletDepth | |
| 130 self.visitNodeDefault(node) | |
| 131 self.bulletDepth -= 1 | |
| 132 self.start_li = self._start_li * self.bulletDepth | |
| 133 | |
| 134 def visitNode_strong(self, node): | |
| 135 self.doFont(node, 'bold') | |
| 136 | |
| 137 def visitNode_em(self, node): | |
| 138 self.doFont(node, 'italic') | |
| 139 | |
| 140 def visitNode_code(self, node): | |
| 141 self.doFont(node, 'typewriter') | |
| 142 | |
| 143 def doFont(self, node, style): | |
| 144 self.fontStack.append((style, None)) | |
| 145 self.writer(' \n%cont, ' + self.fontName() + '\n') | |
| 146 self.visitNodeDefault(node) | |
| 147 del self.fontStack[-1] | |
| 148 self.writer('\n%cont, ' + self.fontName() + '\n') | |
| 149 | |
| 150 def fontName(self): | |
| 151 names = [x[0] for x in self.fontStack] | |
| 152 if 'typewriter' in names: | |
| 153 name = 'typewriter' | |
| 154 else: | |
| 155 name = '' | |
| 156 | |
| 157 if 'bold' in names: | |
| 158 name += 'bold' | |
| 159 if 'italic' in names: | |
| 160 name += 'italic' | |
| 161 | |
| 162 if name == '': | |
| 163 name = 'standard' | |
| 164 | |
| 165 sizes = [x[1] for x in self.fontStack] | |
| 166 sizes.reverse() | |
| 167 for size in sizes: | |
| 168 if size: | |
| 169 return 'font "%s", size %d' % (name, size) | |
| 170 | |
| 171 return 'font "%s"' % name | |
| 172 | |
| 173 start_h2 = "%page\n\n" | |
| 174 end_h2 = '\n\n\n' | |
| 175 | |
| 176 _start_ul = '\n' | |
| 177 | |
| 178 _start_li = "\t" | |
| 179 end_li = "\n" | |
| 180 | |
| 181 | |
| 182 def convertFile(filename, outputter, template, ext=".mgp"): | |
| 183 fout = open(os.path.splitext(filename)[0]+ext, 'w') | |
| 184 fout.write(open(template).read()) | |
| 185 spitter = outputter(fout.write, os.path.dirname(filename), filename) | |
| 186 fin = open(filename) | |
| 187 processFile(spitter, fin) | |
| 188 fin.close() | |
| 189 fout.close() | |
| 190 | |
| 191 | |
| 192 # HTML DOM tree stuff | |
| 193 | |
| 194 def splitIntoSlides(document): | |
| 195 body = domhelpers.findNodesNamed(document, 'body')[0] | |
| 196 slides = [] | |
| 197 slide = [] | |
| 198 title = '(unset)' | |
| 199 for child in body.childNodes: | |
| 200 if isinstance(child, microdom.Element) and child.tagName == 'h2': | |
| 201 if slide: | |
| 202 slides.append((title, slide)) | |
| 203 slide = [] | |
| 204 title = domhelpers.getNodeText(child) | |
| 205 else: | |
| 206 slide.append(child) | |
| 207 slides.append((title, slide)) | |
| 208 return slides | |
| 209 | |
| 210 def insertPrevNextLinks(slides, filename, ext): | |
| 211 for slide in slides: | |
| 212 for name, offset in (("previous", -1), ("next", +1)): | |
| 213 if (slide.pos > 0 and name == "previous") or \ | |
| 214 (slide.pos < len(slides)-1 and name == "next"): | |
| 215 for node in domhelpers.findElementsWithAttribute(slide.dom, "cla
ss", name): | |
| 216 if node.tagName == 'a': | |
| 217 node.setAttribute('href', '%s-%d%s' | |
| 218 % (filename[0], slide.pos+offset, ext)
) | |
| 219 else: | |
| 220 node.appendChild(microdom.Text(slides[slide.pos+offset].
title)) | |
| 221 else: | |
| 222 for node in domhelpers.findElementsWithAttribute(slide.dom, "cla
ss", name): | |
| 223 pos = 0 | |
| 224 for child in node.parentNode.childNodes: | |
| 225 if child is node: | |
| 226 del node.parentNode.childNodes[pos] | |
| 227 break | |
| 228 pos += 1 | |
| 229 | |
| 230 | |
| 231 class HTMLSlide: | |
| 232 def __init__(self, dom, title, pos): | |
| 233 self.dom = dom | |
| 234 self.title = title | |
| 235 self.pos = pos | |
| 236 | |
| 237 | |
| 238 def munge(document, template, linkrel, d, fullpath, ext, url, config): | |
| 239 # FIXME: This has *way* to much duplicated crap in common with tree.munge | |
| 240 #fixRelativeLinks(template, linkrel) | |
| 241 removeH1(document) | |
| 242 fixAPI(document, url) | |
| 243 fontifyPython(document) | |
| 244 addPyListings(document, d) | |
| 245 addHTMLListings(document, d) | |
| 246 #fixLinks(document, ext) | |
| 247 #putInToC(template, generateToC(document)) | |
| 248 template = template.cloneNode(1) | |
| 249 | |
| 250 # Insert the slides into the template | |
| 251 slides = [] | |
| 252 pos = 0 | |
| 253 for title, slide in splitIntoSlides(document): | |
| 254 t = template.cloneNode(1) | |
| 255 setTitle(t, [microdom.Text(title)]) | |
| 256 tmplbody = domhelpers.findElementsWithAttribute(t, "class", "body")[0] | |
| 257 tmplbody.childNodes = slide | |
| 258 tmplbody.setAttribute("class", "content") | |
| 259 # FIXME: Next/Prev links | |
| 260 # FIXME: Perhaps there should be a "Template" class? (setTitle/setBody | |
| 261 # could be methods...) | |
| 262 slides.append(HTMLSlide(t, title, pos)) | |
| 263 pos += 1 | |
| 264 | |
| 265 insertPrevNextLinks(slides, os.path.splitext(os.path.basename(fullpath)), ex
t) | |
| 266 | |
| 267 return slides | |
| 268 | |
| 269 from tree import makeSureDirectoryExists | |
| 270 | |
| 271 def getOutputFileName(originalFileName, outputExtension, index): | |
| 272 return os.path.splitext(originalFileName)[0]+'-'+str(index) + outputExtensio
n | |
| 273 | |
| 274 def doFile(filename, linkrel, ext, url, templ, options={}, outfileGenerator=getO
utputFileName): | |
| 275 from tree import parseFileAndReport | |
| 276 doc = parseFileAndReport(filename) | |
| 277 slides = munge(doc, templ, linkrel, os.path.dirname(filename), filename, ext
, url, options) | |
| 278 for slide, index in zip(slides, range(len(slides))): | |
| 279 newFilename = outfileGenerator(filename, ext, index) | |
| 280 makeSureDirectoryExists(newFilename) | |
| 281 slide.dom.writexml(open(newFilename, 'wb')) | |
| 282 | |
| 283 # Prosper output | |
| 284 | |
| 285 class ProsperSlides(LatexSpitter): | |
| 286 firstSlide = 1 | |
| 287 start_html = '\\documentclass[ps]{prosper}\n' | |
| 288 start_body = '\\begin{document}\n' | |
| 289 start_div_author = '\\author{' | |
| 290 end_div_author = '}' | |
| 291 | |
| 292 def visitNode_h2(self, node): | |
| 293 if self.firstSlide: | |
| 294 self.firstSlide = 0 | |
| 295 self.end_body = '\\end{slide}\n\n' + self.end_body | |
| 296 else: | |
| 297 self.writer('\\end{slide}\n\n') | |
| 298 self.writer('\\begin{slide}{') | |
| 299 spitter = HeadingLatexSpitter(self.writer, self.currDir, self.filename) | |
| 300 spitter.visitNodeDefault(node) | |
| 301 self.writer('}') | |
| 302 | |
| 303 def _write_img(self, target): | |
| 304 self.writer('\\begin{center}\\includegraphics[%%\nwidth=1.0\n\\textwidth
,' | |
| 305 'height=1.0\\textheight,\nkeepaspectratio]{%s}\\end{center}\
n' % target) | |
| 306 | |
| 307 | |
| 308 class PagebreakLatex(LatexSpitter): | |
| 309 | |
| 310 everyN = 1 | |
| 311 currentN = 0 | |
| 312 seenH2 = 0 | |
| 313 | |
| 314 start_html = LatexSpitter.start_html+"\\date{}\n" | |
| 315 start_body = '\\begin{document}\n\n' | |
| 316 | |
| 317 def visitNode_h2(self, node): | |
| 318 if not self.seenH2: | |
| 319 self.currentN = 0 | |
| 320 self.seenH2 = 1 | |
| 321 else: | |
| 322 self.currentN += 1 | |
| 323 self.currentN %= self.everyN | |
| 324 if not self.currentN: | |
| 325 self.writer('\\clearpage\n') | |
| 326 level = (int(node.tagName[1])-2)+self.baseLevel | |
| 327 self.writer('\n\n\\'+level*'sub'+'section*{') | |
| 328 spitter = HeadingLatexSpitter(self.writer, self.currDir, self.filename) | |
| 329 spitter.visitNodeDefault(node) | |
| 330 self.writer('}\n') | |
| 331 | |
| 332 class TwoPagebreakLatex(PagebreakLatex): | |
| 333 | |
| 334 everyN = 2 | |
| 335 | |
| 336 | |
| 337 class SlidesProcessingFunctionFactory(default.ProcessingFunctionFactory): | |
| 338 | |
| 339 latexSpitters = default.ProcessingFunctionFactory.latexSpitters.copy() | |
| 340 latexSpitters['prosper'] = ProsperSlides | |
| 341 latexSpitters['page'] = PagebreakLatex | |
| 342 latexSpitters['twopage'] = TwoPagebreakLatex | |
| 343 | |
| 344 def getDoFile(self): | |
| 345 return doFile | |
| 346 | |
| 347 def generate_mgp(self, d, fileNameGenerator=None): | |
| 348 template = d.get('template', 'template.mgp') | |
| 349 df = lambda file, linkrel: convertFile(file, MagicpointOutput, template,
ext=".mgp") | |
| 350 return df | |
| 351 | |
| 352 factory=SlidesProcessingFunctionFactory() | |
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Issue 12261012:
Remove third_party/twisted_8_1 (Closed)
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