/framework/vendor/smarty3/lib/libs/sysplugins/smarty_internal_compile_for.php

  1<?php
  2/**
  3* Smarty Internal Plugin Compile For
  4* 
  5* Compiles the {for} {forelse} {/for} tags
  6* 
  7* @package Smarty
  8* @subpackage Compiler
  9* @author Uwe Tews 
 10*/
 11/**
 12* Smarty Internal Plugin Compile For Class
 13*/
 14class Smarty_Internal_Compile_For extends Smarty_Internal_CompileBase {
 15    /**
 16    * Compiles code for the {for} tag
 17    * 
 18    * Smarty 3 does implement two different sytaxes:
 19    * 
 20    * - {for $var in $array}
 21    * For looping over arrays or iterators
 22    * 
 23    * - {for $x=0; $x<$y; $x++}
 24    * For general loops
 25    * 
 26    * The parser is gereration different sets of attribute by which this compiler can 
 27    * determin which syntax is used.
 28    * 
 29    * @param array $args array with attributes from parser
 30    * @param object $compiler compiler object
 31    * @return string compiled code
 32    */
 33    public function compile($args, $compiler)
 34    {
 35        $this->compiler = $compiler; 
 36        // {for $x=0; $x<$y; $x++} syntax
 37        if (isset($args['ifexp'])) {
 38            $this->required_attributes = array('ifexp', 'start', 'loop', 'varloop');
 39        } else {
 40            $this->required_attributes = array('start', 'to');
 41            $this->optional_attributes = array('step', 'max');
 42        } 
 43        // check and get attributes
 44        $_attr = $this->_get_attributes($args);
 45
 46        $this->_open_tag('for', array('for', $this->compiler->nocache)); 
 47        // maybe nocache because of nocache variables
 48        $this->compiler->nocache = $this->compiler->nocache | $this->compiler->tag_nocache;
 49
 50        $output = "<?php ";
 51        if (isset($_attr['ifexp'])) {
 52            foreach ($_attr['start'] as $_statement) {
 53                $output .= " \$_smarty_tpl->tpl_vars[$_statement[var]] = new Smarty_Variable;";
 54                $output .= " \$_smarty_tpl->tpl_vars[$_statement[var]]->value = $_statement[value];\n";
 55            } 
 56            $output .= "  if ($_attr[ifexp]){ for (\$_foo=true;$_attr[ifexp]; \$_smarty_tpl->tpl_vars[$_attr[varloop]]->value$_attr[loop]){\n";
 57        } else {
 58            $_statement = $_attr['start'];
 59            $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]] = new Smarty_Variable;";
 60            if (isset($_attr['step'])) {
 61                $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->step = $_attr[step];";
 62            } else {
 63                $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->step = ($_attr[to] - ($_statement[value]) < 0) ? -1 : 1;";
 64            } 
 65            if (isset($_attr['max'])) {
 66                $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->total = (int)min(ceil((\$_smarty_tpl->tpl_vars[$_statement[var]]->step > 0 ? $_attr[to]+1 - $_statement[value] : $_statement[value]-($_attr[to])+1)/abs(\$_smarty_tpl->tpl_vars[$_statement[var]]->step)),$_attr[max]);\n";
 67            } else {
 68                $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->total = (int)ceil((\$_smarty_tpl->tpl_vars[$_statement[var]]->step > 0 ? $_attr[to]+1 - $_statement[value] : $_statement[value]-($_attr[to])+1)/abs(\$_smarty_tpl->tpl_vars[$_statement[var]]->step));\n";
 69            } 
 70            $output .= "if (\$_smarty_tpl->tpl_vars[$_statement[var]]->total > 0){\n";
 71            $output .= "for (\$_smarty_tpl->tpl_vars[$_statement[var]]->value = $_statement[value], \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration = 1;\$_smarty_tpl->tpl_vars[$_statement[var]]->iteration <= \$_smarty_tpl->tpl_vars[$_statement[var]]->total;\$_smarty_tpl->tpl_vars[$_statement[var]]->value += \$_smarty_tpl->tpl_vars[$_statement[var]]->step, \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration++){\n";
 72            $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->first = \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration == 1;";
 73            $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->last = \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration == \$_smarty_tpl->tpl_vars[$_statement[var]]->total;";
 74        } 
 75        $output .= "?>"; 
 76        // return compiled code
 77        return $output;
 78    } 
 79} 
 80
 81/**
 82* Smarty Internal Plugin Compile Forelse Class
 83*/
 84class Smarty_Internal_Compile_Forelse extends Smarty_Internal_CompileBase {
 85    /**
 86    * Compiles code for the {forelse} tag
 87    * 
 88    * @param array $args array with attributes from parser
 89    * @param object $compiler compiler object
 90    * @return string compiled code
 91    */
 92    public function compile($args, $compiler)
 93    {
 94        $this->compiler = $compiler; 
 95        // check and get attributes
 96        $_attr = $this->_get_attributes($args);
 97
 98        list($_open_tag, $nocache) = $this->_close_tag(array('for'));
 99        $this->_open_tag('forelse', array('forelse', $nocache));
100        return "<?php }} else { ?>";
101    } 
102} 
103
104/**
105* Smarty Internal Plugin Compile Forclose Class
106*/
107class Smarty_Internal_Compile_Forclose extends Smarty_Internal_CompileBase {
108    /**
109    * Compiles code for the {/for} tag
110    * 
111    * @param array $args array with attributes from parser
112    * @param object $compiler compiler object
113    * @return string compiled code
114    */
115    public function compile($args, $compiler)
116    {
117        $this->compiler = $compiler; 
118        // check and get attributes
119        $_attr = $this->_get_attributes($args); 
120        // must endblock be nocache?
121        if ($this->compiler->nocache) {
122            $this->compiler->tag_nocache = true;
123        } 
124
125        list($_open_tag, $this->compiler->nocache) = $this->_close_tag(array('for', 'forelse'));
126        if ($_open_tag == 'forelse')
127            return "<?php }  ?>";
128        else
129            return "<?php }} ?>";
130    } 
131} 
132
133?>