Smarty replace text with double quotes

Question

I have the following string in the smarty (php templating system) variable $test:

<img height="113" width="150" alt="Sunset" src="/test.jpg"/>

I want to add "em" to the height and width like this:

{$test|replace:'" w':'em" w'|replace:'" a':'em" a'}

But this doesn't work... What's the problem and the solution?

Answer 1

my regex isn't the greatest, or i'd give you a better matcher, but maybe using what you have through the regex replace would work.

{$test|regex_replace:'/".w/':'em" w'|regex_replace:'/".a/':'em" a'}

other matchers to try

'/\".w/'
'/".*w/'
'/\".*w/'

i can't play with my smarty sites at the moment, but i'd first remove the " from the replacement value, to see if the bug is there, then remove it from the matcher and just look for height/width.

otherwise i'd do the replace in PHP if you can.

Answer 2

You do know ‘em’ units in HTML width/height attributes aren't valid, right? That's CSS only.

Answer 3

With Aggiorno's Smart Search and Replace you can do it like this:

Search Pattern:

<img height="$h" width="$w" $attributes/>

Replace Pattern:

<img height="$[h]em" width="$[w]em" $attributes"/>

When you click the "Search" button, all the occurrences are highlighted before applying the replacement so you can do further checking, after that you can apply the replacement confidently.