def startElementNS(self, elementName, qName, attributes):
if self.skip > 0:
self.skip += 1
return
locator = NodeLocator(self.locator)
(namespace, localName) = elementName
if namespace and namespace != MathNS:
if self.config.verbose:
locator.message(
"Skipped element '%s' from an unknown namespace '%s'" %
(localName, namespace), "INFO")
self.skip = 1
return
properties = {}
for (attName, value) in attributes.items():
(attNamespace, attLocalName) = attName
if attNamespace and attNamespace != MathNS:
if self.config.verbose:
locator.message(
"Ignored attribute '%s' from an unknown namespace '%s'"
% (attLocalName, attNamespace), "INFO")
continue
properties[attLocalName] = value
self.currentNode = MathNode(localName, properties, locator,
self.config, self.currentNode)
def startElementNS(self, elementName, qName, attributes):
if self.skip > 0: self.skip += 1; return
locator = NodeLocator(self.locator)
(namespace, localName) = elementName
if namespace and namespace != MathNS:
if self.config.verbose:
locator.message("Skipped element '%s' from an unknown namespace '%s'" % (localName, namespace), "INFO")
self.skip = 1; return
properties = {}
for (attName, value) in attributes.items():
(attNamespace, attLocalName) = attName
if attNamespace and attNamespace != MathNS:
if self.config.verbose:
locator.message("Ignored attribute '%s' from an unknown namespace '%s'" % (attLocalName, attNamespace), "INFO")
continue
properties[attLocalName] = value
self.currentNode = MathNode (localName, properties, locator, self.config, self.currentNode)
class MathHandler(sax.ContentHandler):
"""SAX ContentHandler for converting MathML formulae to SVG.
Instances of this class read MathML through SAX callbacks, and write
SVG to the destination (specified as another SAX ContentHandler).
Uses namespace-aware SAX calls for both input and output."""
def __init__(self, saxoutput, config):
self.config = MathConfig(config)
self.output = saxoutput
self.skip = 0
self.currentNode = None
self.locator = None
def setDocumentLocator(self, locator):
self.locator = locator
def startDocument(self):
self.output.startDocument()
def endDocument(self):
self.output.endDocument()
def startElementNS(self, elementName, qName, attributes):
if self.skip > 0:
self.skip += 1
return
locator = NodeLocator(self.locator)
(namespace, localName) = elementName
if namespace and namespace != MathNS:
if self.config.verbose:
locator.message(
"Skipped element '%s' from an unknown namespace '%s'" %
(localName, namespace), "INFO")
self.skip = 1
return
properties = {}
for (attName, value) in attributes.items():
(attNamespace, attLocalName) = attName
if attNamespace and attNamespace != MathNS:
if self.config.verbose:
locator.message(
"Ignored attribute '%s' from an unknown namespace '%s'"
% (attLocalName, attNamespace), "INFO")
continue
properties[attLocalName] = value
self.currentNode = MathNode(localName, properties, locator,
self.config, self.currentNode)
def endElementNS(self, elementName, qName):
if self.skip > 0:
self.skip -= 1
if self.skip > 0: return
(namespace, localname) = elementName
if namespace and namespace != MathNS:
raise sax.SAXParseException(
"SAX parser error: namespace on opening and closing elements don't match",
None, self.locator)
if self.currentNode is None:
raise sax.SAXParseException(
"SAX parser error: unmatched closing tag", None, self.locator)
# Normalize text
self.currentNode.text = u' '.join(self.currentNode.text.split())
# If we're back to the top of the tree, measure and draw everything
if self.currentNode.parent is None:
self.currentNode.makeImage(self.output)
self.currentNode = self.currentNode.parent
def characters(self, content):
if self.skip > 0: return
if self.currentNode:
self.currentNode.text += content
class MathHandler (sax.ContentHandler):
"""SAX ContentHandler for converting MathML formulae to SVG.
Instances of this class read MathML through SAX callbacks, and write
SVG to the destination (specified as another SAX ContentHandler).
Uses namespace-aware SAX calls for both input and output."""
def __init__(self, saxoutput, config):
self.config = MathConfig(config)
self.output = saxoutput
self.skip = 0
self.currentNode = None
self.locator = None
def setDocumentLocator(self, locator):
self.locator = locator
def startDocument(self):
self.output.startDocument()
def endDocument(self):
self.output.endDocument()
def startElementNS(self, elementName, qName, attributes):
if self.skip > 0: self.skip += 1; return
locator = NodeLocator(self.locator)
(namespace, localName) = elementName
if namespace and namespace != MathNS:
if self.config.verbose:
locator.message("Skipped element '%s' from an unknown namespace '%s'" % (localName, namespace), "INFO")
self.skip = 1; return
properties = {}
for (attName, value) in attributes.items():
(attNamespace, attLocalName) = attName
if attNamespace and attNamespace != MathNS:
if self.config.verbose:
locator.message("Ignored attribute '%s' from an unknown namespace '%s'" % (attLocalName, attNamespace), "INFO")
continue
properties[attLocalName] = value
self.currentNode = MathNode (localName, properties, locator, self.config, self.currentNode)
def endElementNS(self, elementName, qName):
if self.skip > 0:
self.skip -= 1
if self.skip > 0: return
(namespace, localname) = elementName
if namespace and namespace != MathNS:
raise sax.SAXParseException("SAX parser error: namespace on opening and closing elements don't match", None, self.locator)
if self.currentNode is None:
raise sax.SAXParseException("SAX parser error: unmatched closing tag", None, self.locator)
# Normalize text
self.currentNode.text = u' '.join(self.currentNode.text.split())
# If we're back to the top of the tree, measure and draw everything
if self.currentNode.parent is None:
self.currentNode.makeImage(self.output)
self.currentNode = self.currentNode.parent
def characters(self, content):
if self.skip > 0: return
if self.currentNode:
self.currentNode.text += content