def parse(text, parameters):
try:
# create XML object from xml string
parsed_xml = etree.fromstring(text)
except etree.XMLSyntaxError as error:
Utilities.logErrors(Utilities.formatLxmlErrorMessage(error, text=text),
parameters)
sys.exit(1)
# If the node has parameters, then add them to the global parameters dictionary
parameters = Utilities.mergeDictionaries(
nodeParametersToDictionary(parsed_xml), parameters)
return parsed_xml, parameters
def parse(text, parameters):
# @BUG If the command line flag --language is used may need to recompute dictionary
# load cached language and grammar or create from scratch if needed
grammar, dictionary = Utilities.cache(
'RoL-language-grammar', lambda: prepareGrammarEngine(parameters))
if parameters['Inputs']['RoL']['debug']['grammar']:
print(grammar)
# @NOTE could not pickle the language itself. Is there a way to solve this?
# create the grammar
language = parsley.makeGrammar(
grammar, {
'xml': xml,
'xmlInfix': xmlInfix,
'dictionary': dictionary,
'miniLanguage': lambda x, y, z: miniLanguage(x, y, z, parameters)
})
try:
# parse the text against the grammar
parsed_xml_text = ''.join(language(text).main())
except parsley.ParseError as error:
Utilities.logErrors(Utilities.formatParsleyErrorMessage(error),
parameters)
sys.exit(1)
try:
# create XML object from xml string
parsed_xml = etree.fromstring(parsed_xml_text)
except etree.XMLSyntaxError as error:
Utilities.logErrors(Utilities.formatLxmlErrorMessage(error),
parameters)
sys.exit(1)
# If the node has parameters, then add them to the global parameters dictionary
parameters = Utilities.mergeDictionaries(
nodeParametersToDictionary(parsed_xml), parameters)
# apply semantic changes
parsed_xml = semanticTransformations(parsed_xml)
return parsed_xml, parameters
def test_mergeDictionaries(self):
self.assertEqual(
Utilities.mergeDictionaries({'a': {
'b': '1'
}}, {'a': {
'b': '1'
}}), {'a': {
'b': '1'
}})
self.assertEqual(Utilities.mergeDictionaries({'a': '1'}, {'b': '2'}), {
'a': '1',
'b': '2'
})
self.assertEqual(
Utilities.mergeDictionaries({
'a': '1',
'b': '2'
}, {
'a': '2',
'c': '3'
}), {
'a': '1',
'b': '2',
'c': '3'
})
self.assertEqual(
Utilities.mergeDictionaries({
'a': {
'b': '1',
'c': '3'
},
'b': '2'
}, {
'a': {
'b': '2',
'f': '5'
},
'z': '9'
}), {
'a': {
'b': '1',
'f': '5',
'c': '3'
},
'z': '9',
'b': '2'
})
self.assertEqual(
Utilities.mergeDictionaries(
{
'a': {
'b': {
'x': '1',
'w': '6'
},
'c': '3'
},
'b': '2'
}, {
'a': {
'b': {
'x': '2',
'y': '7'
},
'f': '5'
},
'z': '9'
}), {
'a': {
'b': {
'x': '1',
'w': '6',
'y': '7'
},
'f': '5',
'c': '3'
},
'z': '9',
'b': '2'
})