Removes all control characters from str up to end or up to max_len characters (note that
characters does not mean bytes with UTF-8), where both str and max_len may not be given.
Control characters are replaced in str by whitespaces, no new string will be allocated. The operation is done in-place.
| str |
target string. |
| max_len |
max characters to check or -1 for no character limit. |
| end |
pointer to the endpoint in |
|
pointer to |