new file mode 100644
--- /dev/null
+++ b/library/smarty/libs/sysplugins/smarty_internal_compile_if.php
@@ -0,0 +1,213 @@
+<?php
+/**
+ * Smarty Internal Plugin Compile If
+ * Compiles the {if} {else} {elseif} {/if} tags
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @author Uwe Tews
+ */
+
+/**
+ * Smarty Internal Plugin Compile If Class
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_If extends Smarty_Internal_CompileBase {
+ /**
+ * Compiles code for the {if} 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);
+ $this->openTag($compiler, 'if', array(1, $compiler->nocache));
+ // must whole block be nocache ?
+ $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
+
+ if (!array_key_exists("if condition", $parameter)) {
+ $compiler->trigger_template_error("missing if condition", $compiler->lex->taglineno);
+ }
+
+ if (is_array($parameter['if condition'])) {
+ if ($compiler->nocache) {
+ $_nocache = ',true';
+ // create nocache var to make it know for further compiling
+ if (is_array($parameter['if condition']['var'])) {
+ $var = trim($parameter['if condition']['var']['var'], "'");
+ } else {
+ $var = trim($parameter['if condition']['var'], "'");
+ }
+ if (isset($compiler->template->tpl_vars[$var])) {
+ $compiler->template->tpl_vars[$var]->nocache = true;
+ } else {
+ $compiler->template->tpl_vars[$var] = new Smarty_Variable(null, true);
+ }
+ } else {
+ $_nocache = '';
+ }
+ if (is_array($parameter['if condition']['var'])) {
+ $_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
+ $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . ") {?>";
+ } else {
+ $_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
+ $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . ") {?>";
+ }
+
+ return $_output;
+ } else {
+ return "<?php if ({$parameter['if condition']}) {?>";
+ }
+ }
+}
+
+/**
+ * Smarty Internal Plugin Compile Else Class
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_Else extends Smarty_Internal_CompileBase {
+ /**
+ * Compiles code for the {else} 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, $parameter) {
+ list($nesting, $compiler->tag_nocache) = $this->closeTag($compiler, array('if', 'elseif'));
+ $this->openTag($compiler, 'else', array($nesting, $compiler->tag_nocache));
+
+ return "<?php } else { ?>";
+ }
+}
+
+/**
+ * Smarty Internal Plugin Compile ElseIf Class
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_Elseif extends Smarty_Internal_CompileBase {
+ /**
+ * Compiles code for the {elseif} 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, $args);
+
+ list($nesting, $compiler->tag_nocache) = $this->closeTag($compiler, array('if', 'elseif'));
+
+ if (!array_key_exists("if condition", $parameter)) {
+ $compiler->trigger_template_error("missing elseif condition", $compiler->lex->taglineno);
+ }
+
+ if (is_array($parameter['if condition'])) {
+ $condition_by_assign = true;
+ if ($compiler->nocache) {
+ $_nocache = ',true';
+ // create nocache var to make it know for further compiling
+ if (is_array($parameter['if condition']['var'])) {
+ $var = trim($parameter['if condition']['var']['var'], "'");
+ } else {
+ $var = trim($parameter['if condition']['var'], "'");
+ }
+ if (isset($compiler->template->tpl_vars[$var])) {
+ $compiler->template->tpl_vars[$var]->nocache = true;
+ } else {
+ $compiler->template->tpl_vars[$var] = new Smarty_Variable(null, true);
+ }
+ } else {
+ $_nocache = '';
+ }
+ } else {
+ $condition_by_assign = false;
+ }
+
+ if (empty($compiler->prefix_code)) {
+ if ($condition_by_assign) {
+ $this->openTag($compiler, 'elseif', array($nesting + 1, $compiler->tag_nocache));
+ if (is_array($parameter['if condition']['var'])) {
+ $_output = "<?php } else { if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
+ $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . ") {?>";
+ } else {
+ $_output = "<?php } else { if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
+ $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . ") {?>";
+ }
+
+ return $_output;
+ } else {
+ $this->openTag($compiler, 'elseif', array($nesting, $compiler->tag_nocache));
+
+ return "<?php } elseif ({$parameter['if condition']}) {?>";
+ }
+ } else {
+ $tmp = '';
+ foreach ($compiler->prefix_code as $code) {
+ $tmp = $compiler->appendCode($tmp, $code);
+ }
+ $compiler->prefix_code = array();
+ $tmp = $compiler->appendCode("<?php } else {?>", $tmp);
+ $this->openTag($compiler, 'elseif', array($nesting + 1, $compiler->tag_nocache));
+ if ($condition_by_assign) {
+ if (is_array($parameter['if condition']['var'])) {
+ $_output = $compiler->appendCode($tmp, "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n");
+ $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . ") {?>";
+ } else {
+ $_output = $compiler->appendCode($tmp, "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});");
+ $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . ") {?>";
+ }
+
+ return $_output;
+ } else {
+ return $compiler->appendCode($tmp, "<?php if ({$parameter['if condition']}) {?>");
+ }
+ }
+ }
+}
+
+/**
+ * Smarty Internal Plugin Compile Ifclose Class
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_Ifclose extends Smarty_Internal_CompileBase {
+ /**
+ * Compiles code for the {/if} 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, $parameter) {
+ // must endblock be nocache?
+ if ($compiler->nocache) {
+ $compiler->tag_nocache = true;
+ }
+ list($nesting, $compiler->nocache) = $this->closeTag($compiler, array('if', 'else', 'elseif'));
+ $tmp = '';
+ for ($i = 0; $i < $nesting; $i++) {
+ $tmp .= '}';
+ }
+
+ return "<?php {$tmp}?>";
+ }
+}