View Full Version : Subtracting from substring

11 November 2003, 02:23 PM
string $getItem = `ls -sl -l -tl 1`;

Now I want to delete the last two characters of the objects name if the characters are numeric, is it possible?
I can't seem to find any numericsearch or a way of deleting numbers when it's mixed with text.

This script is supose to select objects of nearly the same name with the click of a button.

11 November 2003, 04:08 PM
Something like this should do what you want.

string $getItem = `ls -sl -l -tl 1`;
string $noNumberString;
string $hasNum=`match ("[0-9][0-9]$") $getItem[$i]`;
if($hasNum != ""){
$noNumberString=`substring $getItem[$i] 1 (size($getItem[$i])-2)`;

I haven't fully tested this, but it should give you some ideas for doing it.


11 November 2003, 04:11 PM
one way to do this, is to simply use `match`

$no_numbers = match "[^0-9]+" $stringwithnumbers;

the no_numbers string will hold the string without the numbers in. (of course, that will strip ALL numbers from the string.

To rework GDCs example to use any number of numbers at the end of the string you can:

string $getItem = `ls -sl -l -tl 1`;
string $noNumberString;

string $hasNum=`match ("[0-9]+$") $getItem[$i]`;
int $digits = `size ($hasNum)`;

if($hasNum != "")
$noNumberString=`substring $getItem[$i] 1 (size($getItem[$i])-$digits)`;

Or something to that effect.... you get the principal logic behind it though

That way you can have any number of numbers at the end. As $hasNum holds the stripped numbers, size will give you the number of digits.

11 November 2003, 01:50 PM
Thank you!!
Sorry for the late reply.

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