Yariv Sadan wrote: > Hi, > > I've seen a few ErlTL enhancement proposals and I'd like to bring them > all together and add some of my ideas to the mix so hopefully we can > end up with an improved ErlTL. I think the current ErlTL is a good > start but after using it for a while I saw some areas where it can use > some refinement. Specifically, I think ErlTL could use new syntax for > the following expressions: if, case, and map. Below is an example > showing the use of the current and proposed syntax (for 'if' and > 'map'): > > current: > > <%@ index(Album, Songs, ShowSongs) %> > album: <% Album %><br/> > <% if ShowSongs -> > songs(S); > true -> > [] > end %> > > <%@ songs(Songs) %> > songs: <br/> > <% [song(S) || S <- Songs] %> > > <%@ song(Song) %> > song: <% Song %><br/> > > > Improved: > > <%@ index(Album, Songs, ShowSongs) %> > album: <% Album %><br/> > <et:if expr="ShowSongs"> > songs:<br/> > <et:map expr="S <- Songs"> > song: <% S %><br/> > </et:map> > </et:if> > > In more detaul, the new syntax would be: > > if: > > <et:if expr="Expr"> > <et:elseif expr="Expr"> (optional) > <et:else> (optional) > </et:if> > > case: > > <et:switch expr="Expr"> > <et:case expr="Expr"> > stuff... > </et:case> > <et:case expr="Expr"> > stuf.. > </et:case> > <et:default> (optional) > stuff... > </et:default> > </et:switch> > > > map: > > <et:map expr="Elem <- List, Elem =/= foo">stuff <% Elem %></et:map> > > > This syntax is pretty self explanatory. All three constructs would be > translated to their Erlang equivalents by the ErlTL parser. > > I think this is a step in the right direction, but I'm not sure that > this is the ideal syntax so I'll be happy to hear some other > suggestions. > > I like it :)
I presume that the old way of doing things will still be available? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "erlyweb" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/erlyweb?hl=en -~----------~----~----~----~------~----~------~--~---
