Blog Mathjax Converter Short Edition

mathjax.py

'''
Blog converter short
For Mathjax only

XGN from HHS 2021/2/27
'''

def blogalize(s):
    s=s.replace("%","%").replace("{{","{ {").replace("}}","} }").replace("$$","$")
    so=""
    left=True
    for i in s:
        if i=="$":
            if left:
                so+="{% mathjax %}"
            else:
                so+="{% endmathjax %}"
            left=not left
        else:
            so+=i
    return so

with open("in.txt",mode="r",encoding="utf-8") as f:
    with open("out.txt",mode="w",encoding="utf-8") as f2:
        f2.write(blogalize("".join(f.readlines())))