e493669d19
git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@180 4cde692c-a291-49d1-8350-778aa11640f8
113 lines
2.9 KiB
Python
113 lines
2.9 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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class TTXParseError(Exception): pass
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class ExpatParser:
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def __init__(self, ttFont, progress=None):
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self.ttFont = ttFont
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self.progress = progress
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self.root = None
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self.contentStack = []
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self.lastpos = 0
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self.stackSize = 0
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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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parser.ParseFile(file)
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def startElementHandler(self, name, attrs):
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if 0 and self.progress:
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# XXX
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pos = self.locator.pos + self.locator.block_offset
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if (pos - self.lastpos) > 4000:
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self.progress.set(pos / 100)
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self.lastpos = pos
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stackSize = self.stackSize
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self.stackSize = self.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", "\000\001\000\000")
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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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msg = "Parsing '%s' table..." % ttLib.xmltag2tag(name)
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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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print msg
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tag = ttLib.xmltag2tag(name)
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if 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 self.ttFont.has_key(tag):
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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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def importXML(ttFont, fileName, progress=None):
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"""Import a TTX file (an XML-based text format), so as to recreate
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a font object.
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"""
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p = ExpatParser(ttFont, progress)
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file = open(fileName)
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p.parseFile(file)
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file.close()
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