Prolog - List of CharCodes to a String or Characters

Question

I have a list of Character Codes in prolog.

I would like to change them into characters.

For instance,

L = \"abc\" returns L = [9

Answer 1

Characters are represented as atoms of length 1. You can produce them:

• At read time by changing the Prolog flag double_quotes. For more, see this and that link.

  :- set_prolog_flag(double_quotes, chars).
  

• Dynamically, you can use atom_codes/2 and atom_chars/2. Or you can use char_code/2 directly.