def insert_feature_values(xmlnode, node_name, dict_tree_containing_node, used_vars):
"""
ET.Subelement, string, dict, set -> ET.Subelement, set
For the given node_name, insert the features that are given in the
dict_tree into the XML Element structure. Returns the updated ET.SubElement
as well as the set of used variables, in order to keep it up-to-date.
"""
if "t" in dict_tree_containing_node["features"]:
dtr_ftop = ET.SubElement(xmlnode, "f", {"name":"top"})
# Generate a new variable for each "coref" tag
coref_var = "@" + utils.numberToString(len(used_vars))
used_vars.add(coref_var)
dtr_topfs = ET.SubElement(dtr_ftop, "fs", {"coref": coref_var})
# insert features in alphabetical order
for feature in sorted(dict_tree_containing_node["features"]["t"].keys()):
feature_tag = ET.SubElement(dtr_topfs, "f", {"name": feature.strip("<>")})
value = dict_tree_containing_node["features"]["t"][feature]
if value.startswith("@"):
# add varname
feature_tag_value = ET.SubElement(feature_tag, "sym", {"varname": value})
else:
# add value
feature_tag_value = ET.SubElement(feature_tag, "sym", {"value": value})
if "b" in dict_tree_containing_node["features"]:
dtr_fbot = ET.SubElement(xmlnode, "f", {"name":"bot"})
coref_var = "@" + utils.numberToString(len(used_vars))
used_vars.add(coref_var)
dtr_botfs = ET.SubElement(dtr_fbot, "fs", {"coref": coref_var})
# insert features in alphabetical order
for feature in sorted(dict_tree_containing_node["features"]["b"].keys()):
feature_tag = ET.SubElement(dtr_botfs, "f", {"name": feature.strip("<>")})
value = dict_tree_containing_node["features"]["b"][feature]
if value.startswith("@"):
# add varname
feature_tag_value = ET.SubElement(feature_tag, "sym", {"varname": value})
else:
# add value
feature_tag_value = ET.SubElement(feature_tag, "sym", {"value": value})
if node_name.islower():
dtr_fphon = ET.SubElement(xmlnode, "f", {"name":"phon"})
dtr_sym = ET.SubElement(dtr_fphon, "sym", {"value":node_name.split("_")[0].lower()})
else:
dtr_fcat = ET.SubElement(xmlnode, "f", {"name":"cat"})
dtr_sym = ET.SubElement(dtr_fcat, "sym", {"value":node_name.split("_")[0].lower()})
return xmlnode, used_vars
def makeXMLFile(currentTree, outpath):
"""
dict, string -> None
For a given tree structure, generates the XML structure. First generates
the tags that are included in every XML file; then identifies the root
of the given tree and generates the ET.SubElements that it requires.
Finally, writes the XML content to the given output file.
"""
xmlfile = open(outpath, "w", encoding="utf8")
grammar = ET.Element("grammar")
entry = ET.SubElement(grammar, "entry", attrib={"name": currentTree["NAME"]})
family = ET.SubElement(entry, "family")
family.text = outpath.split("/")[-2]
trace = ET.SubElement(entry, "trace")
traceClass = ET.SubElement(trace, "class")
traceClass.text = outpath.split("/")[-2]
tree = ET.SubElement(entry, "tree", attrib={"id": currentTree["NAME"]})
root = currentTree["HIERARCHY"]["name"]
if root is not None:
# collecting all variables used in this tree in order to give new variable names
# for occurences of "coref" in the XML tree
used_vars = utils.collect_vars(currentTree["HIERARCHY"])
root_attribs, root_name = utils.nodeNameToAttrDict(root)
root_attribs.update({"name":root_name})
root_node = ET.SubElement(tree, "node", root_attribs)
root_narg = ET.SubElement(root_node, "narg")
root_coref = "@" + utils.numberToString(len(used_vars))
used_vars.add(root_coref)
root_fs = ET.SubElement(root_narg, "fs", {"coref": root_coref})
root_fs, used_vars = insert_feature_values(root_fs, root_name, currentTree["HIERARCHY"], used_vars)
# take root XML node and add all daughters, and all their daughters, etc. to the XML structure
tree = make_subtree(root_node, currentTree["HIERARCHY"], used_vars)
# additional XML info
frame = ET.SubElement(entry, "frame")
semantics = ET.SubElement(entry, "semantics")
interface = ET.SubElement(entry, "interface")
fs = ET.SubElement(interface, "fs")
print('<?xml version="1.0" encoding="utf-8" standalone="no" ?>\n<!DOCTYPE grammar SYSTEM "xmg-tag.dtd,xml">', file=xmlfile)
output = ET.tostring(grammar)
print(utils.prettifyXMLDocument(output).split(">", 1)[1].strip(), file=xmlfile)
xmlfile.close()
return
def make_subtree(mother_node, dict_tree_containing_mother_node, used_vars):
"""
ET.SubElement, dict, set -> ET.SubElement
For the given mother node, insert all children into the XML structure.
If the children also have children, call this function again.
Return the updated ET.SubElement.
"""
for daughter_dict in findDaughters(dict_tree_containing_mother_node):
node_attribs, daughter_name = utils.nodeNameToAttrDict(daughter_dict["name"])
node_attribs.update({"name":daughter_name})
if daughter_name.islower():
node_attribs.update({"type": "flex"})
dtr = ET.SubElement(mother_node, "node", node_attribs)
dtr_narg = ET.SubElement(dtr, "narg")
fs_coref = "@" + utils.numberToString(len(used_vars))
dtr_fs = ET.SubElement(dtr_narg, "fs", {"coref": fs_coref})
dtr_fs, used_vars = insert_feature_values(dtr_fs, daughter_name, daughter_dict, used_vars)
if findDaughters(daughter_dict) != []:
dtr = make_subtree(dtr, daughter_dict, used_vars)
return mother_node
def getNodes(self, definition):
# find the "S_r.b" part in line "S_r.b:<inv> = -":
node = re.compile("([A-Za-z_0-9]+(_r)?)\.((b|t))")
nodes = {}
for result in re.findall(node, definition):
nodeName = result[0]
topOrBottom = result[2]
if nodeName in nodes:
if not topOrBottom in nodes[nodeName]:
nodes[nodeName].update({topOrBottom: {}})
else:
nodes[nodeName] = {topOrBottom: {}}
# differentiate between absolute feature values and values that
# reference other nodes
absoluteValue = re.compile("([A-Za-z_0-9]+(_r)?)\.(b|t):(<[a-z-]+>)\s*=\s*([^:\s]+)\s")
relativeValue = re.compile("([A-Za-z_0-9]+(_r)?)\.(b|t):(<[a-z-]+>)\s*=\s*([A-Za-z_0-9]+(_r)?)\.(b|t):(<[a-z-]+>)")
for result in re.findall(absoluteValue, definition):
nodeName = result[0]
topOrBottom = result[2]
feature = result[3]
featureValue = result[4]
if '"' in featureValue:
featureValue = featureValue.rsplit('"')[0]
if not feature in nodes[nodeName][topOrBottom]:
nodes[nodeName][topOrBottom][feature] = featureValue
# map variable names like "@A" to dictionaries of nodes like "{node: {top: feature}}"
self.variables = {}
for result in re.findall(relativeValue, definition):
nodeName = result[0]
topOrBottom = result[2]
feature = result[3]
relatedNodeName = result[4]
relatedNodeTopOrBottom = result[6]
relatedNodeFeature = result[7]
# find out if referenced node has an absolute value! if it does,
# copy the value to this node.
if relatedNodeFeature in nodes[relatedNodeName][relatedNodeTopOrBottom]:
nodes[nodeName][topOrBottom][feature] = nodes[relatedNodeName][relatedNodeTopOrBottom][relatedNodeFeature]
else:
node1 = {nodeName: {topOrBottom: feature}}
node2 = {relatedNodeName: {relatedNodeTopOrBottom: relatedNodeFeature}}
found = False
for reference in self.variables:
newDict1 = self.variables[reference].copy()
newDict2 = self.variables[reference].copy()
newDict1.update(node1)
newDict2.update(node2)
if self.variables[reference] == newDict1:
if not self.variables[reference] == newDict2:
self.variables[reference].update(node2)
found = True
elif self.variables[reference] == newDict2:
if not self.variables[reference] == newDict1:
self.variables[reference].update(node1)
found = True
if not found:
addition = node1.copy()
addition.update(node2)
self.variables["@"+utils.numberToString(len(self.variables))] = addition
nodes = utils.mergeDicts(nodes, self.variables)
return(nodes)