def handle_term(term):
print("ORIGINAL:")
print(term)
print()
doc = None
for term_type in term_parsers.known_types():
print("Trying to parse '%s' ..." % term_type, end=' ')
try:
doc = MathDOM.fromString(term, term_type)
print("done.")
break
except ParseException as e:
print("Parsing as %s failed: %s" % (term_type, str(e).encode('UTF-8')))
if doc is None:
print("The term is not parsable.")
sys.exit(0)
print("MathML parsing done.")
print()
write_infix(doc)
print()
print("Exchanging '+' and '-' ...")
print()
for apply_tag in doc.xpath('//math:apply[math:plus or math:minus and count(math:*) > 2]'):
operator = apply_tag.operatorname()
if operator == 'plus':
apply_tag.set_operator('minus')
elif operator == 'minus' and apply_tag.operand_count() > 1:
apply_tag.set_operator('plus')
write_infix(doc)
print()
print("Searching for negative numbers using XPath expression '//math:cn[number() < 0]' ...")
print()
for cn_tag in doc.xpath('//math:cn[number() < 0]'):
value = cn_tag.value()
print("%s [%s]" % (value, type(value)))
print()
print("Serializing all sub-terms using XPath '//math:apply' ...")
print()
for apply_tag in doc.xpath('//math:apply'):
print(apply_tag.serialize(converter=infix_converter))
print()
print('Done.')
def handle_term(term):
print "ORIGINAL:"
print term
print
doc = None
for term_type in term_parsers.known_types():
print "Trying to parse '%s' ..." % term_type,
try:
doc = MathDOM.fromString(term, term_type)
print "done."
break
except ParseException, e:
print "Parsing as %s failed: %s" % (term_type, unicode(e).encode('UTF-8'))
<mo>]</mo>
</mrow>
<mo>-</mo>
<mrow>
<mi>θ2</mi>
<mo>[</mo>
<mi>t</mi>
<mo>]</mo>
</mrow>
</mrow>
<mo>]</mo>
</mrow>
<mn>2</mn>
</msup>
<mo>⁢</mo>
<msub>
<mi>m</mi>
<mn>3</mn>
</msub>
</mrow>
</mrow>
<mo>)</mo>
</mrow>
</mrow>
<mo>)</mo>
</mrow>
</mrow>
</math>"""
doc = MathDOM.fromString(MathMLeqn)
