import json
from sys import argv

allsymbols = json.load(open('./unicode-latex.json'))
symbols = ['≼', '→', '⊀', '⋠', '≺', '∀', '∈', '₂', '₁', 'ₐ', 'ₘ', 'ₙ', 'ᵢ' ]
symbols = {s: allsymbols[s] for s in symbols}
print(symbols)


def read_by_char(fname):
    with open(fname, 'r') as fp:
        for line in fp.readlines():
            for ch in line:
                yield ch

def convert(ch):
    return symbols[ch] if ch in symbols else ch

newfile = [convert(ch) for ch in read_by_char(argv[1])]
with open(argv[2], 'w') as f:
    f.writelines(newfile)