How to check if letter in a string appear in another string in the same order

Question

I would love to check if the letters from a text appear in another text in the same order.

text    \"Ce\"
name    \"Arsenic\"
Answer   False


for x in te         


        

Answer 1

i assume your "in order" means the character match in order. In your example text "Ce" name Arsenic should return False and should return True if text is "eC" instead.

first we check if all the character are inside the matching text, if yes, we further check if the matching index are in order, else we just return False

def check_text(text, name):
    name_lower = name.lower()
    if all(x in name_lower for x in text.lower()):
        char_index = [name_lower.index(x) for x in text.lower()]
        return char_index == sorted(char_index)
    else:
        return False


>>> check_text("Ce", "Arsenic")
False
>>> check_text("eC", "Arsenic")
True