smarty_internal_compile_setfilter.php

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<?php
class Smarty_Internal_Compile_Setfilter extends Smarty_Internal_CompileBase {

    public function compile($args, $compiler, $parameter)
    {
        $compiler->variable_filter_stack[] = $compiler->template->variable_filters;
        $compiler->template->variable_filters = $parameter['modifier_list'];
        // this tag does not return compiled code
        $compiler->has_code = false;
        return true;
    }

}

class Smarty_Internal_Compile_Setfilterclose extends Smarty_Internal_CompileBase {

    public function compile($args, $compiler)
    {
        $_attr = $this->getAttributes($compiler, $args);
        // reset variable filter to previous state
        if (count($compiler->variable_filter_stack)) {
            $compiler->template->variable_filters = array_pop($compiler->variable_filter_stack);
        } else {
            $compiler->template->variable_filters = array();
        }
        // this tag does not return compiled code
        $compiler->has_code = false;
        return true;
    }

}

?>