def parse_om_file(fname):
""" Parses OpenMath XML from a file.
Parses the file contents and calls the decoder on the root
of the tree produced.
:param fname: The path to the file containing the XML data
:returns: The object represented by the file contents
"""
tree = ET.parse(fname)
root = tree.getroot()
omobj = parse_om_root(root)
return omobj
def parse_om_string(omstring):
""" Parses OpenMath XML from a string.
Parses the string contents and calls the decoder on the root
of the tree produced.
:params omstring: The string representation of the XML data.
:returns: The object represented by the XML from the string.
"""
root = ET.fromstring(omstring)
try:
omobj = parse_om_root(root)
except(UnsupportedCDError,UnexpectedSymbolError) as err:
return str(err)
return omobj
def evaluate_om_string(omstring, vars={}):
""" Evaluates OpenMath XML Strings
Parses the string contents and calls the evaluator on the
root of the tree produced.
:params omstring: The string representation of the XML data.
:params vars: A dictionary containing any variables required
"""
try:
root = ET.fromstring(omstring)
omobj = parse_om_root(root)
result = omobj.eval()
except (DivideByZeroError, UnexpectedSymbolError,
UnsupportedCDError,InvalidArgsError) as err:
return str(err)
return result