Question

How to safety parse tab-delimiter string ? for example:
test\tbla-bla-bla\t2332 ?

Answer 1

strtok() is a standard function for parsing strings with arbitrary delimiters. It is, however, not thread-safe. Your C library of choice might have a thread-safe variant.

Another standard-compliant way (just wrote this up, it is not tested):

#include <string.h>
#include <stdio.h>

int main()
{
    char string[] = "foo\tbar\tbaz";
    char * start = string;
    char * end;
    while ( ( end = strchr( start, '\t' ) ) != NULL )
    {
        // %s prints a number of characters, * takes number from stack
        // (your token is not zero-terminated!)
        printf( "%.*s\n", end - start, start );
        start = end + 1;
    }
    // start points to last token, zero-terminated
    printf( "%s", start );
    return 0;
}