Re: hash concatenation messes key ordering

Hello again

Since I didn't find a native solution I did it by concatenating the keys 
in a separate list and using those for looking up in the concatenated 
hash in order to preserve ordering.

<#local foo={'a':'1','b':'2'} />
<#local bar={'c':'3'} />

<#local allKeys=foo?keys+bar?keys />
<#local all=foo+bar />
<#list allKeys as k>
  ${k}-${all[k]}
</#list>

prints out: a-1 b-2 c-3

thanks
Ioannis

John Cherouvim wrote:
> Hello
>
> This FreeMarker template:
> <#local foo={'a':'1','b':'2'} />
> <#local foo=foo+{'c':'3'} />
> <#list foo?keys as k>
> ${k}
> </#list>
>
> prints:
> b c a
>
> Would it be possible to concatenate 2 hashes in FreeMarker but retain 
> the key ordering? (so it would print "a b c")
>
> What I'm asking already happens in sequence concatenation, so:
> <#local foo=['a','b'] />
> <#local foo=foo+['c'] />
> <#list foo as k>
> ${k}
> </#list>
>
> prints:
> a b c
>
> I'm using FreeMarker ver 2.3.15
>
>
> thanks a lot!
> Ioannis
>
>
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-- 
Ioannis Cherouvim
Software Engineer
mail: [email protected]
web: www.eworx.gr


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