Re: weird macro params issue

 
On Saturday, May 03, 2008, at 07:15PM, "Ioannis Cherouvim" <[email protected]> wrote:
>Hello again
>
>I know it's a corner case, and maybe a cryptic way of defining 
>templates, but here is how I actually use it:
>
><#macro renderLink url anchor=url title=anchor>
>    <a href="${url}" title="${title}">${anchor}</a>
></#macro>

I do not think that FreeMarker allows optional parameters otherwise you could do:

<#macro renderLink url anchor title>
    <#assign anchor=anchor!url>
    <a href="${url}" title="${title!anchor}">${anchor}</a>
</#macro>

-- Denis.

>
>This provides full flexibility for the client code of the renderLink 
>macro which has sensible defaults.
>All the following produce nice results:
><@renderLink "http://freemarker.sourceforge.net/" />
><@renderLink "http://freemarker.sourceforge.net/" "FreeMarker" />
><@renderLink "http://freemarker.sourceforge.net/" "FreeMarker" 
>"FreeMarker: Java Template Engine Library" />
>
>Of course I could rewrite the macro definition and implement the same 
>behavior with a couple of <#if /> and <#local /> inside it.
>
>thanks
>


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