The |commuter_class filter compares the provided classes to the classes present in an HTML tag. The filter removes classes already present and adds classes that did not exist.
Example
#LOGO_RUBRIQUE
Produces the following HTML:
<img
src="IMG/logo/essai-1.jpg?1614197741"
class="spip_logo"
width="800"
height="600"
alt=""/>
Let’s apply the |commuter_class filter with the ’nav spip_logo menu’ argument:
[(#LOGO_RUBRIQUE|commuter_class{nav spip_logo menu})]
The classes ’nav’ and ’menu’, which are absent, are added, and the class ’spip_logo’, which is already present, is deleted.
The result is:
<img
src="IMG/logo/essai-1.jpg?1614197741" class='nav menu'
width="800"
height="600"
alt=""/>