Str.strdelimit

Converts any delimiter characters in string to new_delimiter. Any characters in string which are found in delimiters are changed to the new_delimiter character. Modifies string in place, and returns string itself, not a copy. The return value is to allow nesting such as

g_ascii_strup (g_strdelimit (str, "abc", '?'))

In order to modify a copy, you may use `g_strdup()`:

reformatted = g_strdelimit (g_strdup (const_str), "abc", '?');
...
g_free (reformatted);