Coverage for local/lib/python2.7/site-packages/sage/misc/mathml.py : 31%

""" 

MathML output support 

In order to support MathML formatting, an object should define a special 

method _mathml_(self) that returns its MathML representation. 

""" 

#***************************************************************************** 

# 

# Sage: System for Algebra and Geometry Experimentation 

# 

# Copyright (C) 2005 William Stein <wstein@gmail.com> 

# 

# Distributed under the terms of the GNU General Public License (GPL) 

# 

# This code is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 

# General Public License for more details. 

# 

# The full text of the GPL is available at: 

# 

# http://www.gnu.org/licenses/ 

#***************************************************************************** 

from __future__ import absolute_import 

from six import iteritems, integer_types 

def list_function(x): 

return 'MATHML version of the list %s' % (x,) 

def tuple_function(x): 

return 'MATHML version of the tuple %s' % (x,) 

def bool_function(x): 

return 'MATHML version of %s' % (x,) 

def str_function(x): 

return 'MATHML version of the string %s' % (x,) 

# One can add to the latex_table in order to install latexing 

# functionality for other types. 

mathml_table = {list: list_function, 

tuple:tuple_function, 

bool:bool_function, 

str: str_function, 

float:str} 

for x in integer_types: 

mathml_table[x] = str 

class MathML(str): 

def __repr__(self): 

return str(self) 

def mathml(x): 

""" 

Output x formatted for inclusion in a MathML document. 

""" 

try: 

return MathML(x._mathml_()) 

except (AttributeError, TypeError): 

for k, f in iteritems(mathml_table): 

if isinstance(x, k): 

return MathML(f(x)) 

if x is None: 

return MathML("MATHML version of 'None'") 

return MathML(str_function(str(x)))