#!/usr/bin/env python
#
# mathmltest.py -- test the MathML support in eqn
#
# This script generates an HTML test page from a list of eqn equations.
# The test page will have putatively equivalent MathML in it and can be
# checked in a browser.
import os, commands, tempfile
tests = (
("x + y", "Demonstrate binary operators and identifiers"),
("a sub 1", "Demonstrate subscripting."),
("b prime", "Demonstrate prime boxes."),
("x={-b +- sqrt{b sup 2 -4ac}} over 2a",
"Quadratic formula."),
("lim from {x -> pi /2} ( tan~x) sup{sin~2x}~=~1",
"Inline first example from the abstract of the guide to eqn."),
('''
G(z)~mark =~ e sup { ln ~ G(z) }
~=~ exp left (
sum from k>=1 {S sub k z sup k} over k right )
~=~ prod from k>=1 e sup {S sub k z sup k /k}
''',
"Second (display) example from the abstract of the guide to eqn."),
("matrix { ccol { x sub i above y sub i } ccol { x sup 2 above y sup 2 }}",
"First matrix example from the guide to eqn."),
("x = 2 pi int sin ( omega t ) dt",
"Integral example from the guide to eqn."),
("A~=~left [ pile { a above b above c } ~~ pile { x above y above z } right ]",
"First pile example from the guide to eqn."),
)
def filter_string(str, command):
fp = tempfile.NamedTemporaryFile(prefix="mathmltest")
fp.write(str + "\n")
fp.flush()
output = os.popen(command + " <" + fp.name, "r").read()
fp.close()
return output
print '''
Test page demonstrating eqn to MathML translation
This is a test page demonstating eqn to MathML parsing with the -TMathML
option.
'''
for (test, explanation) in tests:
print "%s
" % explanation
mathml = filter_string(".EQ\n" + test + "\n.EN\n", "eqn -TMathML")
mathml = mathml.replace(".EQ\n", "").replace(".EN\n", "")
#mathml = filter_string(mathml, "xmllint --valid --format -")
print "EQN markup text:"
print "%s