1: <?php
  2: /**
  3:  * Smarty Internal Plugin Compile For
  4:  * Compiles the {for} {forelse} {/for} tags
  5:  *
  6:  * @package    Smarty
  7:  * @subpackage Compiler
  8:  * @author     Uwe Tews
  9:  */
 10: 
 11: /**
 12:  * Smarty Internal Plugin Compile For Class
 13:  *
 14:  * @package    Smarty
 15:  * @subpackage Compiler
 16:  */
 17: class Smarty_Internal_Compile_For extends Smarty_Internal_CompileBase
 18: {
 19:     /**
 20:      * Compiles code for the {for} tag
 21:      * Smarty 3 does implement two different syntax's:
 22:      * - {for $var in $array}
 23:      * For looping over arrays or iterators
 24:      * - {for $x=0; $x<$y; $x++}
 25:      * For general loops
 26:      * The parser is generating different sets of attribute by which this compiler can
 27:      * determine which syntax is used.
 28:      *
 29:      * @param  array  $args      array with attributes from parser
 30:      * @param  object $compiler  compiler object
 31:      * @param  array  $parameter array with compilation parameter
 32:      *
 33:      * @return string compiled code
 34:      */
 35:     public function compile($args, $compiler, $parameter)
 36:     {
 37:         if ($parameter == 0) {
 38:             $this->required_attributes = array('start', 'to');
 39:             $this->optional_attributes = array('max', 'step');
 40:         } else {
 41:             $this->required_attributes = array('start', 'ifexp', 'var', 'step');
 42:             $this->optional_attributes = array();
 43:         }
 44:         // check and get attributes
 45:         $_attr = $this->getAttributes($compiler, $args);
 46: 
 47:         $output = "<?php ";
 48:         if ($parameter == 1) {
 49:             foreach ($_attr['start'] as $_statement) {
 50:                 $output .= " \$_smarty_tpl->tpl_vars[$_statement[var]] = new Smarty_Variable;";
 51:                 $output .= " \$_smarty_tpl->tpl_vars[$_statement[var]]->value = $_statement[value];\n";
 52:             }
 53:             $output .= "  if ($_attr[ifexp]) { for (\$_foo=true;$_attr[ifexp]; \$_smarty_tpl->tpl_vars[$_attr[var]]->value$_attr[step]) {\n";
 54:         } else {
 55:             $_statement = $_attr['start'];
 56:             $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]] = new Smarty_Variable;";
 57:             if (isset($_attr['step'])) {
 58:                 $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->step = $_attr[step];";
 59:             } else {
 60:                 $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->step = 1;";
 61:             }
 62:             if (isset($_attr['max'])) {
 63:                 $output .= "\$_smarty_tpl->tpl_vars[$_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";
 64:             } else {
 65:                 $output .= "\$_smarty_tpl->tpl_vars[$_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";
 66:             }
 67:             $output .= "if (\$_smarty_tpl->tpl_vars[$_statement[var]]->total > 0) {\n";
 68:             $output .= "for (\$_smarty_tpl->tpl_vars[$_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";
 69:             $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->first = \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration == 1;";
 70:             $output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->last = \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration == \$_smarty_tpl->tpl_vars[$_statement[var]]->total;";
 71:         }
 72:         $output .= "?>";
 73: 
 74:         $this->openTag($compiler, 'for', array('for', $compiler->nocache));
 75:         // maybe nocache because of nocache variables
 76:         $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
 77:         // return compiled code
 78:         return $output;
 79:     }
 80: }
 81: 
 82: /**
 83:  * Smarty Internal Plugin Compile Forelse Class
 84:  *
 85:  * @package    Smarty
 86:  * @subpackage Compiler
 87:  */
 88: class Smarty_Internal_Compile_Forelse extends Smarty_Internal_CompileBase
 89: {
 90:     /**
 91:      * Compiles code for the {forelse} tag
 92:      *
 93:      * @param  array  $args      array with attributes from parser
 94:      * @param  object $compiler  compiler object
 95:      * @param  array  $parameter array with compilation parameter
 96:      *
 97:      * @return string compiled code
 98:      */
 99:     public function compile($args, $compiler, $parameter)
100:     {
101:         // check and get attributes
102:         $_attr = $this->getAttributes($compiler, $args);
103: 
104:         list($openTag, $nocache) = $this->closeTag($compiler, array('for'));
105:         $this->openTag($compiler, 'forelse', array('forelse', $nocache));
106: 
107:         return "<?php }} else { ?>";
108:     }
109: }
110: 
111: /**
112:  * Smarty Internal Plugin Compile Forclose Class
113:  *
114:  * @package    Smarty
115:  * @subpackage Compiler
116:  */
117: class Smarty_Internal_Compile_Forclose extends Smarty_Internal_CompileBase
118: {
119:     /**
120:      * Compiles code for the {/for} tag
121:      *
122:      * @param  array  $args      array with attributes from parser
123:      * @param  object $compiler  compiler object
124:      * @param  array  $parameter array with compilation parameter
125:      *
126:      * @return string compiled code
127:      */
128:     public function compile($args, $compiler, $parameter)
129:     {
130:         // check and get attributes
131:         $_attr = $this->getAttributes($compiler, $args);
132:         // must endblock be nocache?
133:         if ($compiler->nocache) {
134:             $compiler->tag_nocache = true;
135:         }
136: 
137:         list($openTag, $compiler->nocache) = $this->closeTag($compiler, array('for', 'forelse'));
138: 
139:         if ($openTag == 'forelse') {
140:             return "<?php }  ?>";
141:         } else {
142:             return "<?php }} ?>";
143:         }
144:     }
145: }
146: