Is there a more or less standard way to output character strings that contain special characters, such ASCII control codes, in such a way that the output is a valid C/C++ literal string, with escape sequences ?
Example of expected output: This\nis\na\\test\n\nShe said, \"How are you?\"\n
Without care, the output would be
This
is
a\test
She said, "How are you?"
not what want.
Depending on what you might be trying to achieve I can suggest the following solution: Just replace any non-printable character with "\xnn" (nn being the ascii code of the character. This would boil down to
void myprint (char *s) {
while (*s) {
printf(isalnum((unsigned char) *s) ? "%c" : "\\%03hho", *s);
s++;
}
}
This will of course not use special abbreviations like \n (but \x0a) instead, but this shouldn't be a problem.