xmlReader.py revision 3a9fd301808f5a8991ca9ac44028d1ecb22d307f
17842e56b97ce677b83bdab09cda48bc2d89ac75aJustfrom fontTools import ttLib 27842e56b97ce677b83bdab09cda48bc2d89ac75aJustfrom fontTools.misc.textTools import safeEval 3f8fd4777d273836a1222b72f6761cb6fdf9ec87aJustfrom fontTools.ttLib.tables.DefaultTable import DefaultTable 44bb05c6ad4b112de40642d77663aa87d145f863fjvrimport os 57842e56b97ce677b83bdab09cda48bc2d89ac75aJust 67842e56b97ce677b83bdab09cda48bc2d89ac75aJust 7ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvrclass TTXParseError(Exception): pass 87842e56b97ce677b83bdab09cda48bc2d89ac75aJust 99b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvrBUFSIZE = 0x4000 109b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr 117842e56b97ce677b83bdab09cda48bc2d89ac75aJust 123ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbodclass XMLReader: 137842e56b97ce677b83bdab09cda48bc2d89ac75aJust 143ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod def __init__(self, fileName, ttFont, progress=None, quiet=False): 157842e56b97ce677b83bdab09cda48bc2d89ac75aJust self.ttFont = ttFont 164bb05c6ad4b112de40642d77663aa87d145f863fjvr self.fileName = fileName 177842e56b97ce677b83bdab09cda48bc2d89ac75aJust self.progress = progress 1885af40e7d8c4f4f4a3df3562a5ec9e5731cfe43fDave Crossland self.quiet = quiet 197842e56b97ce677b83bdab09cda48bc2d89ac75aJust self.root = None 20ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.contentStack = [] 21ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.stackSize = 0 22ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr 233ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod def read(self): 243ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod if self.progress: 253ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod import stat 263ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod self.progress.set(0, os.stat(fileName)[stat.ST_SIZE] / 100 or 1) 2756bfea43176d03cede26f8de51638c4ab9f4bd64jvr file = open(self.fileName) 283ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod self._parseFile(file) 2956bfea43176d03cede26f8de51638c4ab9f4bd64jvr file.close() 3056bfea43176d03cede26f8de51638c4ab9f4bd64jvr 313ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod def _parseFile(self, file): 32e493669d196f292f24d4c09ce340c3e67749bce5jvr from xml.parsers.expat import ParserCreate 334b3df49b5b70b3618e91e3ab954cedca773831d6Behdad Esfahbod parser = ParserCreate() 34e493669d196f292f24d4c09ce340c3e67749bce5jvr parser.returns_unicode = 0 353ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod parser.StartElementHandler = self._startElementHandler 363ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod parser.EndElementHandler = self._endElementHandler 373ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod parser.CharacterDataHandler = self._characterDataHandler 38e493669d196f292f24d4c09ce340c3e67749bce5jvr 399b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr pos = 0 409b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr while 1: 419b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr chunk = file.read(BUFSIZE) 429b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr if not chunk: 439b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr parser.Parse(chunk, 1) 449b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr break 459b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr pos = pos + len(chunk) 469b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr if self.progress: 479b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr self.progress.set(pos / 100) 489b7b8e0f5b5f968acb95f8c3a484ea8d42924d65jvr parser.Parse(chunk, 0) 49ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr 503ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod def _startElementHandler(self, name, attrs): 51ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr stackSize = self.stackSize 52e82b4d5658a7a38cf92b4b9392861257a2cfbb36jvr self.stackSize = stackSize + 1 53f8fd4777d273836a1222b72f6761cb6fdf9ec87aJust if not stackSize: 54180ace6a5ff1399ec53bc696e8bef7cce6eef39aBehdad Esfahbod if name != "ttFont": 55cd5aad92f23737ff93a110d5c73d624658a28da8Behdad Esfahbod raise TTXParseError("illegal root tag: %s" % name) 564bb05c6ad4b112de40642d77663aa87d145f863fjvr sfntVersion = attrs.get("sfntVersion") 574bb05c6ad4b112de40642d77663aa87d145f863fjvr if sfntVersion is not None: 58180ace6a5ff1399ec53bc696e8bef7cce6eef39aBehdad Esfahbod if len(sfntVersion) != 4: 594bb05c6ad4b112de40642d77663aa87d145f863fjvr sfntVersion = safeEval('"' + sfntVersion + '"') 604bb05c6ad4b112de40642d77663aa87d145f863fjvr self.ttFont.sfntVersion = sfntVersion 61ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.contentStack.append([]) 62f8fd4777d273836a1222b72f6761cb6fdf9ec87aJust elif stackSize == 1: 634bb05c6ad4b112de40642d77663aa87d145f863fjvr subFile = attrs.get("src") 644bb05c6ad4b112de40642d77663aa87d145f863fjvr if subFile is not None: 654bb05c6ad4b112de40642d77663aa87d145f863fjvr subFile = os.path.join(os.path.dirname(self.fileName), subFile) 663ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod subReader = XMLReader(subFile, self.ttFont, self.progress, self.quiet) 673ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod subReader.read() 684bb05c6ad4b112de40642d77663aa87d145f863fjvr self.contentStack.append([]) 694bb05c6ad4b112de40642d77663aa87d145f863fjvr return 700011bb691018c7feed1f8c3554d88b9ae096e127jvr tag = ttLib.xmlToTag(name) 710011bb691018c7feed1f8c3554d88b9ae096e127jvr msg = "Parsing '%s' table..." % tag 727842e56b97ce677b83bdab09cda48bc2d89ac75aJust if self.progress: 737842e56b97ce677b83bdab09cda48bc2d89ac75aJust self.progress.setlabel(msg) 747842e56b97ce677b83bdab09cda48bc2d89ac75aJust elif self.ttFont.verbose: 757842e56b97ce677b83bdab09cda48bc2d89ac75aJust ttLib.debugmsg(msg) 767842e56b97ce677b83bdab09cda48bc2d89ac75aJust else: 7785af40e7d8c4f4f4a3df3562a5ec9e5731cfe43fDave Crossland if not self.quiet: 7885af40e7d8c4f4f4a3df3562a5ec9e5731cfe43fDave Crossland print msg 790011bb691018c7feed1f8c3554d88b9ae096e127jvr if tag == "GlyphOrder": 800011bb691018c7feed1f8c3554d88b9ae096e127jvr tableClass = ttLib.GlyphOrder 81bc5e1cb195c0bfa1c8e7507326d5a9ad05aecb4bBehdad Esfahbod elif "ERROR" in attrs: 82f8fd4777d273836a1222b72f6761cb6fdf9ec87aJust tableClass = DefaultTable 83f8fd4777d273836a1222b72f6761cb6fdf9ec87aJust else: 84f8fd4777d273836a1222b72f6761cb6fdf9ec87aJust tableClass = ttLib.getTableClass(tag) 85f8fd4777d273836a1222b72f6761cb6fdf9ec87aJust if tableClass is None: 86f8fd4777d273836a1222b72f6761cb6fdf9ec87aJust tableClass = DefaultTable 87bc5e1cb195c0bfa1c8e7507326d5a9ad05aecb4bBehdad Esfahbod if tag == 'loca' and tag in self.ttFont: 88d57c4346e5725bbfe0e1b13067b292c3faaaeb8ejvr # Special-case the 'loca' table as we need the 89e82b4d5658a7a38cf92b4b9392861257a2cfbb36jvr # original if the 'glyf' table isn't recompiled. 90ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.currentTable = self.ttFont[tag] 911670f7af0edf5af2447f9fb157febe8cfb44b629Just else: 92ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.currentTable = tableClass(tag) 93ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.ttFont[tag] = self.currentTable 94ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.contentStack.append([]) 95f8fd4777d273836a1222b72f6761cb6fdf9ec87aJust elif stackSize == 2: 96ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.contentStack.append([]) 97ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.root = (name, attrs, self.contentStack[-1]) 987842e56b97ce677b83bdab09cda48bc2d89ac75aJust else: 997842e56b97ce677b83bdab09cda48bc2d89ac75aJust list = [] 100ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.contentStack[-1].append((name, attrs, list)) 101ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.contentStack.append(list) 1027842e56b97ce677b83bdab09cda48bc2d89ac75aJust 1033ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod def _characterDataHandler(self, data): 104ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr if self.stackSize > 1: 105ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.contentStack[-1].append(data) 1067842e56b97ce677b83bdab09cda48bc2d89ac75aJust 1073ebfea491ea795217e0f9649c23ee81df769a250Behdad Esfahbod def _endElementHandler(self, name): 108ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr self.stackSize = self.stackSize - 1 109ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr del self.contentStack[-1] 110ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr if self.stackSize == 1: 1117842e56b97ce677b83bdab09cda48bc2d89ac75aJust self.root = None 112ca4c45681ef2ea9290c6845f8bf61dff281fc5c4jvr elif self.stackSize == 2: 1133a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod name, attrs, content = self.root 1143a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod self.currentTable.fromXML(name, attrs, content, self.ttFont) 1157842e56b97ce677b83bdab09cda48bc2d89ac75aJust self.root = None 1167842e56b97ce677b83bdab09cda48bc2d89ac75aJust 1177842e56b97ce677b83bdab09cda48bc2d89ac75aJust 1187842e56b97ce677b83bdab09cda48bc2d89ac75aJustclass ProgressPrinter: 1197842e56b97ce677b83bdab09cda48bc2d89ac75aJust 1207842e56b97ce677b83bdab09cda48bc2d89ac75aJust def __init__(self, title, maxval=100): 1217842e56b97ce677b83bdab09cda48bc2d89ac75aJust print title 1227842e56b97ce677b83bdab09cda48bc2d89ac75aJust 1237842e56b97ce677b83bdab09cda48bc2d89ac75aJust def set(self, val, maxval=None): 1247842e56b97ce677b83bdab09cda48bc2d89ac75aJust pass 1257842e56b97ce677b83bdab09cda48bc2d89ac75aJust 1267842e56b97ce677b83bdab09cda48bc2d89ac75aJust def increment(self, val=1): 1277842e56b97ce677b83bdab09cda48bc2d89ac75aJust pass 1287842e56b97ce677b83bdab09cda48bc2d89ac75aJust 1296ab979cacaa9c15666a526e05c669b7f87bb6de9jvr def setLabel(self, text): 1307842e56b97ce677b83bdab09cda48bc2d89ac75aJust print text 1317842e56b97ce677b83bdab09cda48bc2d89ac75aJust 132