library/smarty/libs/sysplugins/smarty_internal_compile_for.php
changeset 0 4869aea77e21
new file mode 100644
--- /dev/null
+++ b/library/smarty/libs/sysplugins/smarty_internal_compile_for.php
@@ -0,0 +1,160 @@
+<?php
+/**
+ * Smarty Internal Plugin Compile For
+ * Compiles the {for} {forelse} {/for} tags
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ * @author     Uwe Tews
+ */
+
+/**
+ * Smarty Internal Plugin Compile For Class
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_For extends Smarty_Internal_CompileBase {
+    /**
+     * Compiles code for the {for} tag
+     * Smarty 3 does implement two different syntax's:
+     * - {for $var in $array}
+     * For looping over arrays or iterators
+     * - {for $x=0; $x<$y; $x++}
+     * For general loops
+     * The parser is generating different sets of attribute by which this compiler can
+     * determine which syntax is used.
+     *
+     * @param  array $args array with attributes from parser
+     * @param  object $compiler compiler object
+     * @param  array $parameter array with compilation parameter
+     *
+     * @return string compiled code
+     */
+    public function compile($args, $compiler, $parameter) {
+        if ($parameter == 0) {
+            $this->required_attributes = array('start', 'to');
+            $this->optional_attributes = array('max', 'step');
+        } else {
+            $this->required_attributes = array('start', 'ifexp', 'var', 'step');
+            $this->optional_attributes = array();
+        }
+        // check and get attributes
+        $_attr = $this->getAttributes($compiler, $args);
+
+        $output = "<?php ";
+        if ($parameter == 1) {
+            foreach ($_attr['start'] as $_statement) {
+                if (is_array($_statement['var'])) {
+                    $var = $_statement['var']['var'];
+                    $index = $_statement['var']['smarty_internal_index'];
+                } else {
+                    $var = $_statement['var'];
+                    $index = '';
+                }
+                $output .= " \$_smarty_tpl->tpl_vars[$var] = new Smarty_Variable;";
+                $output .= " \$_smarty_tpl->tpl_vars[$var]->value{$index} = $_statement[value];\n";
+            }
+            if (is_array($_attr['var'])) {
+                $var = $_attr['var']['var'];
+                $index = $_attr['var']['smarty_internal_index'];
+            } else {
+                $var = $_attr['var'];
+                $index = '';
+            }
+            $output .= "  if ($_attr[ifexp]) { for (\$_foo=true;$_attr[ifexp]; \$_smarty_tpl->tpl_vars[$var]->value{$index}$_attr[step]) {\n";
+        } else {
+            $_statement = $_attr['start'];
+            if (is_array($_statement['var'])) {
+                $var = $_statement['var']['var'];
+                $index = $_statement['var']['smarty_internal_index'];
+            } else {
+                $var = $_statement['var'];
+                $index = '';
+            }
+            $output .= "\$_smarty_tpl->tpl_vars[$var] = new Smarty_Variable;";
+            if (isset($_attr['step'])) {
+                $output .= "\$_smarty_tpl->tpl_vars[$var]->step = $_attr[step];";
+            } else {
+                $output .= "\$_smarty_tpl->tpl_vars[$var]->step = 1;";
+            }
+            if (isset($_attr['max'])) {
+                $output .= "\$_smarty_tpl->tpl_vars[$var]->total = (int) min(ceil((\$_smarty_tpl->tpl_vars[$var]->step > 0 ? $_attr[to]+1 - ($_statement[value]) : $_statement[value]-($_attr[to])+1)/abs(\$_smarty_tpl->tpl_vars[$var]->step)),$_attr[max]);\n";
+            } else {
+                $output .= "\$_smarty_tpl->tpl_vars[$var]->total = (int) ceil((\$_smarty_tpl->tpl_vars[$var]->step > 0 ? $_attr[to]+1 - ($_statement[value]) : $_statement[value]-($_attr[to])+1)/abs(\$_smarty_tpl->tpl_vars[$var]->step));\n";
+            }
+            $output .= "if (\$_smarty_tpl->tpl_vars[$var]->total > 0) {\n";
+            $output .= "for (\$_smarty_tpl->tpl_vars[$var]->value{$index} = $_statement[value], \$_smarty_tpl->tpl_vars[$var]->iteration = 1;\$_smarty_tpl->tpl_vars[$var]->iteration <= \$_smarty_tpl->tpl_vars[$var]->total;\$_smarty_tpl->tpl_vars[$var]->value{$index} += \$_smarty_tpl->tpl_vars[$var]->step, \$_smarty_tpl->tpl_vars[$var]->iteration++) {\n";
+            $output .= "\$_smarty_tpl->tpl_vars[$var]->first = \$_smarty_tpl->tpl_vars[$var]->iteration == 1;";
+            $output .= "\$_smarty_tpl->tpl_vars[$var]->last = \$_smarty_tpl->tpl_vars[$var]->iteration == \$_smarty_tpl->tpl_vars[$var]->total;";
+        }
+        $output .= "?>";
+
+        $this->openTag($compiler, 'for', array('for', $compiler->nocache));
+        // maybe nocache because of nocache variables
+        $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
+        // return compiled code
+        return $output;
+    }
+}
+
+/**
+ * Smarty Internal Plugin Compile Forelse Class
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_Forelse extends Smarty_Internal_CompileBase {
+    /**
+     * Compiles code for the {forelse} tag
+     *
+     * @param  array $args array with attributes from parser
+     * @param  object $compiler compiler object
+     * @param  array $parameter array with compilation parameter
+     *
+     * @return string compiled code
+     */
+    public function compile($args, $compiler, $parameter) {
+        // check and get attributes
+        $_attr = $this->getAttributes($compiler, $args);
+
+        list($openTag, $nocache) = $this->closeTag($compiler, array('for'));
+        $this->openTag($compiler, 'forelse', array('forelse', $nocache));
+
+        return "<?php }} else { ?>";
+    }
+}
+
+/**
+ * Smarty Internal Plugin Compile Forclose Class
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_Forclose extends Smarty_Internal_CompileBase {
+    /**
+     * Compiles code for the {/for} tag
+     *
+     * @param  array $args array with attributes from parser
+     * @param  object $compiler compiler object
+     * @param  array $parameter array with compilation parameter
+     *
+     * @return string compiled code
+     */
+    public function compile($args, $compiler, $parameter) {
+        // check and get attributes
+        $_attr = $this->getAttributes($compiler, $args);
+        // must endblock be nocache?
+        if ($compiler->nocache) {
+            $compiler->tag_nocache = true;
+        }
+
+        list($openTag, $compiler->nocache) = $this->closeTag($compiler, array('for', 'forelse'));
+
+        if ($openTag == 'forelse') {
+            return "<?php }  ?>";
+        } else {
+            return "<?php }} ?>";
+        }
+    }
+}