131 lines
3.4 KiB
Python
131 lines
3.4 KiB
Python
from fontTools import ttLib
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from fontTools.misc.textTools import safeEval
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from fontTools.ttLib.tables.DefaultTable import DefaultTable
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import os
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class TTXParseError(Exception): pass
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BUFSIZE = 0x4000
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class XMLReader:
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def __init__(self, fileName, ttFont, progress=None, quiet=False):
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self.ttFont = ttFont
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self.fileName = fileName
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self.progress = progress
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self.quiet = quiet
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self.root = None
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self.contentStack = []
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self.stackSize = 0
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def read(self):
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if self.progress:
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import stat
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self.progress.set(0, os.stat(fileName)[stat.ST_SIZE] / 100 or 1)
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file = open(self.fileName)
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self._parseFile(file)
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file.close()
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def _parseFile(self, file):
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from xml.parsers.expat import ParserCreate
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parser = ParserCreate()
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parser.returns_unicode = 0
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parser.StartElementHandler = self._startElementHandler
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parser.EndElementHandler = self._endElementHandler
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parser.CharacterDataHandler = self._characterDataHandler
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pos = 0
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while 1:
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chunk = file.read(BUFSIZE)
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if not chunk:
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parser.Parse(chunk, 1)
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break
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pos = pos + len(chunk)
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if self.progress:
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self.progress.set(pos / 100)
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parser.Parse(chunk, 0)
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def _startElementHandler(self, name, attrs):
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stackSize = self.stackSize
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self.stackSize = stackSize + 1
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if not stackSize:
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if name <> "ttFont":
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raise TTXParseError, "illegal root tag: %s" % name
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sfntVersion = attrs.get("sfntVersion")
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if sfntVersion is not None:
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if len(sfntVersion) <> 4:
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sfntVersion = safeEval('"' + sfntVersion + '"')
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self.ttFont.sfntVersion = sfntVersion
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self.contentStack.append([])
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elif stackSize == 1:
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subFile = attrs.get("src")
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if subFile is not None:
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subFile = os.path.join(os.path.dirname(self.fileName), subFile)
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subReader = XMLReader(subFile, self.ttFont, self.progress, self.quiet)
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subReader.read()
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self.contentStack.append([])
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return
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tag = ttLib.xmlToTag(name)
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msg = "Parsing '%s' table..." % tag
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if self.progress:
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self.progress.setlabel(msg)
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elif self.ttFont.verbose:
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ttLib.debugmsg(msg)
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else:
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if not self.quiet:
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print msg
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if tag == "GlyphOrder":
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tableClass = ttLib.GlyphOrder
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elif attrs.has_key("ERROR"):
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tableClass = DefaultTable
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else:
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tableClass = ttLib.getTableClass(tag)
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if tableClass is None:
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tableClass = DefaultTable
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if tag == 'loca' and self.ttFont.has_key(tag):
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# Special-case the 'loca' table as we need the
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# original if the 'glyf' table isn't recompiled.
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self.currentTable = self.ttFont[tag]
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else:
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self.currentTable = tableClass(tag)
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self.ttFont[tag] = self.currentTable
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self.contentStack.append([])
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elif stackSize == 2:
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self.contentStack.append([])
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self.root = (name, attrs, self.contentStack[-1])
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else:
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list = []
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self.contentStack[-1].append((name, attrs, list))
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self.contentStack.append(list)
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def _characterDataHandler(self, data):
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if self.stackSize > 1:
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self.contentStack[-1].append(data)
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def _endElementHandler(self, name):
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self.stackSize = self.stackSize - 1
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del self.contentStack[-1]
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if self.stackSize == 1:
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self.root = None
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elif self.stackSize == 2:
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self.currentTable.fromXML(self.root, self.ttFont)
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self.root = None
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class ProgressPrinter:
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def __init__(self, title, maxval=100):
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print title
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def set(self, val, maxval=None):
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pass
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def increment(self, val=1):
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pass
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def setLabel(self, text):
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print text
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