import re

case_pattern = re.compile(r"case\s(?P<name>[^:]*):\s*.*?new GUIContent\((?P<val>\"[^\"]*\")\);")
name_pattern = re.compile(r"\{(?P<key>[^,]*),\s(?P<tmp>\d*)\}")

with open("input.txt", "r", encoding="utf-8") as f:
    with open("result.txt", "w", encoding="utf-8") as fo:
        helper = {}
        t = f.read()
        for m in name_pattern.finditer(t):
            helper[m.group("tmp")] = m.group("key")
        for m in case_pattern.finditer(t):
            k = helper[m.group("name")]
            fo.write(f"[{k}] = {m.group('val')},\n")