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"""
A minimal SAX application that just prints out the document-handler events
it receives.
"""
import sys
from xml.sax import saxexts
# --- SAXtracer
class SAXtracer:
def __init__(self,objname):
self.objname=objname
self.met_name=""
def __getattr__(self,name):
self.met_name=name # UGLY! :)
return self.trace
def error(self,exception):
print "err_handler.error(%s)" % str(exception)
def fatalError(self,exception):
print "err_handler.fatalError(%s)" % str(exception)
def warning(self,exception):
print "err_handler.warning(%s)" % str(exception)
def characters(self,data,start,length):
print "doc_handler.characters(%s,%d,%d)" % (`data[start:start+length]`,
start,length)
def ignorableWhitespace(self,data,start,length):
print "doc_handler.ignorableWhitespace(%s,%d,%d)" % \
(`data[start:start+length]`,start,length)
def startElement(self, name, attrs):
attr_str="{"
for attr in attrs:
attr_str="%s '%s':'%s'," % (attr_str,attr,attrs[attr])
if attr_str=="{":
attr_str="{}"
else:
attr_str=attr_str[:-1]+" }"
print "doc_handler.startElement('%s',%s)" % (name,attr_str)
def trace(self,*rest):
str="%s.%s(" % (self.objname,self.met_name)
for param in rest[:-1]:
str=str+`param`+", "
if len(rest)>0:
print str+`rest[-1]`+")"
else:
print str+")"
# --- Main prog
pf=saxexts.ParserFactory()
p=pf.make_parser("xml.sax.drivers.drv_xmlproc")
p.setDocumentHandler(SAXtracer("doc_handler"))
p.setDTDHandler(SAXtracer("dtd_handler"))
p.setErrorHandler(SAXtracer("err_handler"))
p.setEntityResolver(SAXtracer("ent_handler"))
p.parse(sys.argv[1])
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