Two Commands for TextMate which allows you to increment any digits/numbers in the selected text.

Increment Digits In Selected Text.php

#!/usr/bin/env php
<?php

$text = $_ENV[ 'TM_SELECTED_TEXT' ];

print preg_replace_callback(
    '/(\d)/',
    function( $matches )
    {
        return $matches[ 0 ] + 1;
    },
    $text
);

Increment Numbers In Selected Text.php

#!/usr/bin/env php
<?php

$text = $_ENV[ 'TM_SELECTED_TEXT' ];

print preg_replace_callback(
    '/(\d+)/',
    function( $matches )
    {
        return $matches[ 0 ] + 1;
    },
    $text
);

Usage.mdown

Usage

1. Create a new Command in some Bundle.
2. Set Save to Nothing.
3. Set Command(s) to the content of one of the Gist above.
4. Set Input to: "Selected Text or Nothing".
5. Set Output to Replace Selected Text.
6. Set Activation to Key Equivalent and any keyboard shortcut you'd like to use (ie. ^I).
7. Don't set a Scope Selector.
8. It's done!

Amazing to find this relevant 12 years later! Thanks!

For TextMate 2 I did mostly the same thing, but to get it to work with multiple selection I had to make some changes.

Firstly go to menu, Bundles, Edit Bundles, then navigate to where you want this to live (I used Text -> Menu Actions). Use Cmd-N and select Command. Paste in this snippit and make change thins to be like my screenshot:

#!/bin/bash
while read line || [ -n "$line" ]; do 
  [ -z $line ] && break;
  ((line++));
  echo "$line";
done