I have written a lualatex file with unicode characters such as α, ≤ …

Now I need to convert it to latex. Is there a script that converts the symbols to tex commands \alpha, \leq …?


I am using the following python script. The result required some small tweaking.

#!/usr/bin/env python3
import sys
import fileinput
import unicode_tex

excluded_chars = ['\\', '&', '$', '{', '}', '%', ' ', '_', '~', '\'', '`', '^',     '*', '#']
tex_replacements = unicode_tex.unicode_to_tex_map.copy()
for char in excluded_chars:

with fileinput.FileInput(sys.argv[1], inplace=True, backup='.bak') as file:
  for line in file:
    for src, target in tex_replacements.items():
      line = line.replace(src, target+"{}")
    print(line, end='')

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