function process($tpl, &$textElements, $functionName, $functionChildren, $functionParameters, $functionPlacement, $rootNamespace, $currentNamespace)
{
/*
* Check function parameters
*/
$loop = new eZTemplateLoop(eZTemplateForFunction::FUNCTION_NAME, $functionParameters, $functionChildren, $functionPlacement, $tpl, $textElements, $rootNamespace, $currentNamespace);
if (!$loop->initialized()) {
return;
}
$loop->parseScalarParamValue('first_val', $firstVal, $firstValIsProxy);
$loop->parseScalarParamValue('last_val', $lastVal, $lastValIsProxy);
if ($firstValIsProxy || $lastValIsProxy) {
$tpl->error(eZTemplateForFunction::FUNCTION_NAME, "Proxy objects ({section} loop iterators) cannot be used to specify the range \n" . "(this will lead to indefinite loops in compiled mode).\n" . "Please explicitly dereference the proxy object like this: \$current_node.item.");
return;
}
$loop->parseParamVarName('loop_var', $loopVarName);
if ($firstVal === null || $lastVal === null || !$loopVarName) {
$tpl->error(eZTemplateForFunction::FUNCTION_NAME, "Wrong arguments passed.");
return;
}
if (!is_numeric($firstVal) || !is_numeric($lastVal)) {
$tpl->error(eZTemplateForFunction::FUNCTION_NAME, "Both 'from' and 'to' values can only be numeric.");
return;
}
$loop->initLoopVariable($loopVarName);
/*
* Everything is ok, run the 'for' loop itself
*/
for ($i = $firstVal; $firstVal < $lastVal ? $i <= $lastVal : $i >= $lastVal;) {
// set loop variable
$tpl->setVariable($loopVarName, $i, $rootNamespace);
$loop->setSequenceVar();
// set sequence variable (if specified)
$loop->processDelimiter();
$loop->resetIteration();
if ($loop->processChildren()) {
break;
}
// increment loop variable here for delimiter to be processed correctly
$firstVal < $lastVal ? $i++ : $i--;
$loop->incrementSequence();
}
// for
$loop->cleanup();
}
