Re: [squid-users] Adding Header file

Paras Fadte wrote:
> Hi Amos,
>
> With respect to ESI and whatever little that I have understood after
> looking at the code it seems that the user defined variables are not
> evaluated when used in WHEN statement . In the file ESIAssign.cc file
> , I added "process(0)" which calls the process function . The
> process function is in the ESIAssign.cc . Really don't know whether
> this is the correct way , but doing so does substitute the variables
> in the "WHEN" statement with their real values . Also the problem
> seems to be that if one uses "assign" statement in a WHEN statement as
> shown below , irrespective of whether the WHEN test is true or false
> the assign statements are executed. Is it a parser issue?
>
> Can anybody help regarding this ?
>
>
> <esi:assign name="number" value="100"/>
>
>
> <esi:choose>
> <esi:when test="$(number)<=6">
> I am in "First" When statement.....
> <br> number = $(number)
> <esi:assign name="test" value="1234"/>
> <br> test = $(test)
> </esi:when>
>
> <esi:when test="$(number)==8">
> I am in "Second" When statement...
> <br> number = $(number)
> </esi:when>
>
> <esi:when test="$(number)==100">
> I am in "Third" When statement .....
> </esi:when>
>
> <esi:otherwise>
> <br> I am in ESI "otherwise" statement..
> </esi:otherwise>
> </esi:choose>
>
>
> ***********************************************************************************************************
> ESIAssign::ESIAssign (esiTreeParentPtr aParent, int attrcount, char
> const **attr, ESIContext *aContext ) : parent (aParent), varState
> (NULL), name(), value (NULL), variable (NULL), unevaluatedVariable()
> {
> /* TODO: grab content IFF no value was specified */
> assert (aContext);
>
>
> varState = cbdataReference(aContext->varState);
>
> for (int i = 0; i < attrcount && attr[i]; i += 2) {
> if (!strcmp(attr[i],"name")) {
> /* the variables name is ... */
> debugs(86, 5, "ESIAssign::ESIAssign: Variable name '" <<
> attr[i+1] << "'");
> /* If there are duplicate name attributes, we simply use the
> * last one
> */
> name = attr[i+1];
>
> } else if (!strcmp(attr[i],"value")) {
> /* short form assignment: */
> debugs(86, 5, "ESIAssign::ESIAssign: Unevaluated variable
> '" << attr[i+1] << "'");
> /* Again, if there are duplicate attributes, we use the last */
> unevaluatedVariable = attr[i+1];
>
>
> process(0);
> } else {
> /* ignore mistyped attributes. TODO:? error on these for
> user feedback - config parameter needed
> */
> }
> }
>
> //varState = cbdataReference(aContext->varState);
> }
> *******************************************************************************************************************
>
> Thank you.
>
> -Paras
>
<snip>

It sounds to me like the parser running over the <esi:when> tags content
even if the test is false. I think you may need to look in the function
handling when and see if it can be made to run the test and skip to the
</esi:when> if false.

Amos

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