substringpascalsubstr

Pascal substr equivalent

I was looking for a Pascal equivalent for (for example) the php's substr function, which works like this:

$new_string = substr('abcdef', 1, 3);  // returns 'bcd'

I've already found it, but I always take excessively long to do so, so I'm posting the answer for others like me to be able to easily find it.

Solution

  • You can use the function copy. The syntax goes:

    copy(string, start, length);

    Strings in Pascal seem to be indexed starting from the 1, so the following:

    s1 := 'abcdef';
s2 := copy(s1, 2, 3);

    will result in s2 == 'bcd'.

    Hope this helps someone.