def transform(doc, styleSheet, params=None):
# Redirect libxml error messages
libxml2.registerErrorHandler(callback, None)
libxslt.registerErrorHandler(callback, None)
# Transforms doc (XML data) with style (XSLT stylesheet file name)
try:
styledoc = libxml2.parseFile(styleSheet)
except libxml2.parserError, e:
raise "Could not parse %s" % styleSheet, e
def xmlToRoadmap(filePath):
libxml2.registerErrorHandler(lambda ctx,str: None, None)
libxslt.registerErrorHandler(lambda ctx,str: None, None)
pmlStyleDoc=libxml2.parseFile(settings.PML_PATH + "/xpml/pmldoc.xsl")
style = libxslt.parseStylesheetDoc(pmlStyleDoc)
try:
doc = libxml2.parseFile(filePath)
result = style.applyStylesheet(doc, None)
return style.saveResultToString(result)
except (libxml2.parserError, TypeError):
return None
def xmlToPml(filePath):
#Redirect XML errors away from stdout so that it doesn't cause a
#mod_wsgi exception.
libxml2.registerErrorHandler(lambda ctx,str: None, None)
libxslt.registerErrorHandler(lambda ctx,str: None, None)
pmlStyleDoc=libxml2.parseFile(settings.PML_PATH + "/xpml/xpml.xsl")
style = libxslt.parseStylesheetDoc(pmlStyleDoc)
try:
doc = libxml2.parseFile(filePath)
result = style.applyStylesheet(doc, None)
return style.saveResultToString(result)
except (libxml2.parserError, TypeError):
return None
def registerErrorHandler(f, ctx):
"""Register a Python written function to for error reporting.
The function is called back as f(ctx, error). """
import sys
if 'libxslt' not in sys.modules:
# normal behaviour when libxslt is not imported
ret = libxml2mod.xmlRegisterErrorHandler(f,ctx)
else:
# when libxslt is already imported, one must
# use libxst's error handler instead
import libxslt
ret = libxslt.registerErrorHandler(f,ctx)
return ret
def registerErrorHandler(f, ctx):
"""Register a Python written function to for error reporting.
The function is called back as f(ctx, error). """
import sys
if not sys.modules.has_key('libxslt'):
# normal behaviour when libxslt is not imported
ret = libxml2mod.xmlRegisterErrorHandler(f,ctx)
else:
# when libxslt is already imported, one must
# use libxst's error handler instead
import libxslt
ret = libxslt.registerErrorHandler(f,ctx)
return ret