Mapytex/renders.py

63 lines
1.6 KiB
Python

#!/usr/bin/env python
# encoding: utf-8
from render import Render
from fraction import Fraction
from formal import FormalExp
# ------------------------
# A console render
txt_infix = {"+": "+", "-": "-", "*": "*", "/" : "/", ":": ":"}
txt_postfix = {}
txt_other = {"(": "(", ")": ")"}
txt_render = Render(txt_infix, txt_postfix, txt_other)
# ------------------------
# A infix to postfix list convertor
p2i_infix = {"+": "+", "-": "-", "*": "*", "/" : "/", ":":":"}
p2i_postfix = {}
p2i_other = {"(": "(", ")": ")"}
post2in_fix = Render(p2i_infix, p2i_postfix, p2i_other, join = False)
# ------------------------
# A latex render
def texSlash(op1, op2):
if not Render.isNumerande(op1) and op1[0] == "(" and op1[-1] == ")":
op1 = op1[1:-1]
if not Render.isNumerande(op2) and op2[0] == "(" and op2[-1] == ")":
op2 = op2[1:-1]
return ["\\frac{" , op1 , "}{" , op2 , "}"]
def texFrac(frac):
return ["\\frac{" , str(frac._num) , "}{" , str(frac._denom) , "}"]
tex_infix = {"+": " + ", "-": " - ", "*": " \\times ", ":": ":"}
tex_postfix = {"/": texSlash}
tex_other = {"(": "(", ")": ")"}
tex_type_render = {int: str, Fraction: texFrac, FormalExp: str}
tex_render = Render(tex_infix, tex_postfix, tex_other, type_render = tex_type_render)
if __name__ == '__main__':
exp = [2, 5, '+', 1, '-', 3, 4, '*', ':']
print(txt_render(exp))
exp = [2, 5, '+', 1, '-', 3, 4, '*', '/', 3, 5, '/', ':']
print(tex_render(exp))
exp = [2, 5, '+', 1, '-', 3, 4, '*', '/', 3, '+']
print(post2in_fix(exp))
# -----------------------------
# Reglages pour 'vim'
# vim:set autoindent expandtab tabstop=4 shiftwidth=4:
# cursor: 16 del