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########################################################################
#
# File Name: XsltFunctions.py
#
#
"""
WWW: http://4suite.org/XSLT e-mail: support@4suite.org
Copyright (c) 1999-2000 FourThought Inc, USA. All Rights Reserved.
See http://4suite.org/COPYRIGHT for license and copyright information
"""
import cStringIO, os, re, urlparse, urllib
from xml.dom import EMPTY_NAMESPACE
import xml.dom.ext
from xml.dom import Node
from xml.dom.DocumentFragment import DocumentFragment
from xml.xpath import CoreFunctions, Conversions, Util, g_extFunctions
from xml.xslt import XsltException, Error, XSL_NAMESPACE
from xml.xslt import g_extElements
# from Ft.Lib import Uri
# import os
# BETA_DOMLETTE = os.environ.get("BETA_DOMLETTE")
# if BETA_DOMLETTE:
# from Ft.Lib import cDomlette
# g_readerClass = cDomlette.RawExpatReader
# g_domModule = cDomlette
# else:
# from Ft.Lib import pDomlette
# g_readerClass = pDomlette.PyExpatReader
# g_domModule = pDomlette
def Document(context, object, nodeSet=None):
result = []
baseUri = getattr(context.stylesheet, 'baseUri', '')
#if baseUri: baseUri= baseUri + '/'
if nodeSet:
baseUri = getattr(nodeSet[0], 'baseUri', baseUri)
if nodeSet is None:
if type(object) == type([]):
for curr_node in object:
result = result + Document(
context, Conversions.StringValue(curr_node),
[curr_node]
)
elif object == '':
result = [context.stylesheet.ownerDocument]
context.stylesheet.newSource(context.stylesheet.ownerDocument,
context.processor)
#Util.IndexDocument(context.stylesheet.ownerDocument)
else:
try:
#FIXME: Discard fragments before checking for dupes
uri = Conversions.StringValue(object)
if context.documents.has_key(uri):
result = context.documents[uri]
else:
try:
doc = context.stylesheet._docReader.fromUri(uri, baseUri=baseUri)
except:
raise
#Util.IndexDocument(doc)
context.stylesheet.newSource(doc, context.processor)
result = [doc]
except IOError:
pass
elif type(nodeSet) == type([]):
if type(object) == type([]):
for curr_node in object:
result = result + Document(
context,
Conversions.StringValue(curr_node),
nodeSet
)
else:
try:
uri = Conversions.StringValue(object)
#FIXME: Discard fragments before checking for dupes
if context.documents.has_key(uri):
result = context.documents[uri]
else:
doc = context.stylesheet._docReader.fromUri(uri, baseUri=baseUri)
#Util.IndexDocument(doc)
context.stylesheet.newSource(doc, context.processor)
result = [doc]
except IOError:
pass
return result
def Key(context, qname, keyList):
result = []
name = Util.ExpandQName(Conversions.StringValue(qname),
namespaces=context.processorNss)
if context.stylesheet.keys.has_key(name):
a_dict = context.stylesheet.keys[name]
if type(keyList) != type([]):
keyList = [keyList]
for key in keyList:
key = Conversions.StringValue(key)
result = result + a_dict.get(key, [])
return result
def Current(context):
return [context.currentNode]
def UnparsedEntityUri(context, name):
if hasattr(context.node.ownerDoc, '_unparsedEntities') and context.node.ownerDoc._unparsedEntities.has_key(name):
return context.node.ownerDoc._unparsedEntities[name]
return ''
def GenerateId(context, nodeSet=None):
if nodeSet is not None and type(nodeSet) != type([]):
raise XsltException(Error.WRONG_ARGUMENT_TYPE)
if not nodeSet:
return 'id' + `id(context.node)`
else:
node = Util.SortDocOrder(nodeSet)[0]
return 'id' + `id(node)`
def SystemProperty(context, qname):
uri, lname = Util.ExpandQName(Conversions.StringValue(qname),
namespaces=context.processorNss)
if uri == XSL_NAMESPACE:
if lname == 'version':
return 1.0
if lname == 'vendor':
return "Fourthought Inc."
if lname == 'vendor-url':
return "http://4Suite.org"
elif uri == 'http://xmlns.4suite.org/xslt/env-system-property':
return os.environ.get(lname, '')
elif uri == 'http://xmlns.4suite.org':
if lname == 'version':
return __version__
return ''
def FunctionAvailable(context, qname):
split_name = Util.ExpandQName(Conversions.StringValue(qname),
namespaces=context.processorNss)
if g_extFunctions.has_key(split_name) or CoreFunctions.CoreFunctions.has_key(split_name):
return CoreFunctions.True(context)
else:
return CoreFunctions.False(context)
def ElementAvailable(context, qname):
split_name = Util.ExpandQName(Conversions.StringValue(qname),
namespaces=context.processorNss)
if g_extElements.has_key(split_name) or CoreFunctions.CoreFunctions.has_key(split_name):
return CoreFunctions.True(context)
else:
return CoreFunctions.False(context)
def XsltStringValue(object):
#def XsltStringValue(object, cache=None):
#print "XsltStringValue cache", cache
#if cache and cache.has_key(object):
#print "found:", cache[object]
#return cache[object]
if hasattr(object, 'stringValue'):
return 1, object.stringValue
if hasattr(object, 'nodeType') and object.nodeType == Node.DOCUMENT_FRAGMENT_NODE:
result = ''
for node in object.childNodes:
result = result + Conversions.CoreStringValue(node)[1]
#if cache is not None: cache[object] = result
return 1, result
return 0, None
def XsltNumberValue(object):
handled, value = XsltStringValue(object)
if handled:
return 1, Conversions.NumberValue(value)
return 0, None
def XsltBooleanValue(object):
handled, value = XsltStringValue(object)
if handled:
return 1, Conversions.BooleanValue(value)
return 0, None
##0 decimal-separator
##1 grouping-separator
##2 infinity
##3 minus-sign
##4 NaN
##5 percent
##6 per-mille
##7 zero-digit
##8 digit
##9 pattern-separator
def FormatNumber(context, number, formatString, decimalFormatName=None):
decimal_format = ''
num = Conversions.NumberValue(number)
format_string = Conversions.StringValue(formatString)
if decimalFormatName is not None:
split_name = Util.ExpandQName(decimalFormatName,
namespaces=context.processorNss)
decimal_format = context.stylesheet.decimalFormats[split_name]
else:
decimal_format = context.stylesheet.decimalFormats['']
from Ft.Lib import routines
result = routines.FormatNumber(num, format_string)
return result
Conversions.g_stringConversions.insert(0, XsltStringValue)
Conversions.g_numberConversions.insert(0, XsltNumberValue)
Conversions.g_booleanConversions.insert(0, XsltBooleanValue)
ExtFunctions = {
(EMPTY_NAMESPACE, 'document'): Document,
(EMPTY_NAMESPACE, 'key'): Key,
(EMPTY_NAMESPACE, 'current'): Current,
(EMPTY_NAMESPACE, 'generate-id'): GenerateId,
(EMPTY_NAMESPACE, 'system-property'): SystemProperty,
(EMPTY_NAMESPACE, 'function-available'): FunctionAvailable,
(EMPTY_NAMESPACE, 'element-available'): ElementAvailable,
(EMPTY_NAMESPACE, 'string-value'): XsltStringValue,
(EMPTY_NAMESPACE, 'format-number'): FormatNumber,
(EMPTY_NAMESPACE, 'unparsed-entity-uri'): UnparsedEntityUri
}
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