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Parse data tags of nodes and edges correctly #32

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Parse data tags of nodes and edges correctly #32

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69d0e1f
parse data tags of nodes correctly
raymontag Jan 11, 2019
2ecb07a
parse data tags of edges correctly
raymontag Jan 14, 2019
38348f9
fix copy paste error
raymontag Jan 15, 2019
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32 changes: 18 additions & 14 deletions pygraphml/graphml_parser.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
from __future__ import absolute_import
from __future__ import print_function

import xml.dom
from xml.dom import minidom

from . import Graph
Expand Down Expand Up @@ -63,7 +64,8 @@ def write(self, graph, fname=None):
edge.setAttribute('source', e.node1['label'])
edge.setAttribute('target', e.node2['label'])
if e.directed() != graph.directed:
edge.setAttribute('directed', 'true' if e.directed() else 'false')
edge.setAttribute(
'directed', 'true' if e.directed() else 'false')
for a in e.attributes():
if e != 'label':
data = doc.createElement('data')
Expand Down Expand Up @@ -127,7 +129,7 @@ def parse(self, fname):
"""

g = None
with open( fname, 'r') as f:
with open(fname, 'r') as f:
dom = minidom.parse(f)
root = dom.getElementsByTagName("graphml")[0]
graph = root.getElementsByTagName("graph")[0]
Expand All @@ -143,12 +145,13 @@ def parse(self, fname):
# Get nodes
for node in graph.getElementsByTagName("node"):
n = g.add_node(id=node.getAttribute('id'))

for attr in node.getElementsByTagName("data"):
if attr.firstChild:
n[attr.getAttribute("key")] = attr.firstChild.data
else:
n[attr.getAttribute("key")] = ""
for child in node.childNodes:
if child.nodeType == xml.dom.Node.ELEMENT_NODE and child.tagName == "data":
if child.firstChild:
n[child.getAttribute(
"key")] = child.firstChild.data
else:
n[child.getAttribute("key")] = ""

# Get edges
for edge in graph.getElementsByTagName("edge"):
Expand All @@ -157,12 +160,13 @@ def parse(self, fname):

# source/target attributes refer to IDs: http://graphml.graphdrawing.org/xmlns/1.1/graphml-structure.xsd
e = g.add_edge_by_id(source, dest)

for attr in edge.getElementsByTagName("data"):
if attr.firstChild:
e[attr.getAttribute("key")] = attr.firstChild.data
else:
e[attr.getAttribute("key")] = ""
for child in edge.childNodes:
if child.nodeType == xml.dom.Node.ELEMENT_NODE and child.tagName == "data":
if child.firstChild:
e[child.getAttribute(
"key")] = child.firstChild.data
else:
e[child.getAttribute("key")] = ""

return g

Expand Down