Replace with regexp i Template Toolkit

Question

I have this string (of jeans sizes): W30L30 W31L32 W32L33

And I would like to have W30 31 32

I am trying with

[% SET availableSizes = 'W30L30 W31L32 W32L33' %]
[% regexp = '(?<!^)W|L\d\d+' %]
[% SET availableSizes = availableSizes.replace(regexp , '') %]

But it gives me: 30 31 32

Could you help please?

Answer 1

Contrary to what you claim, your code already produces the desired output.

$ tpage a.tt
W30 31 32

tpage is the command installed by Template-Toolkit. It's a simple program that processes the specified template using that library. Great for testing :)

---

a.tt:

[% SET availableSizes = 'W30L30 W31L32 W32L33' -%]
[% regexp = '(?<!^)W|L\d\d+' -%]
[% SET availableSizes = availableSizes.replace(regexp , '') -%]
[% availableSizes %]

I added [% availableSizes %] (because your template didn't actually output anything but line feeds) and some - (to remove the excessive line feeds).