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smarty_internal_templatebase.php
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<?php
/**
* Smarty Internal Plugin TemplateBase
*
* This file contains the basic classes and methodes for template and variable creation
*
* @package Smarty
* @subpackage Templates
* @author Uwe Tews
*/
/**
* Base class with template and variable methodes
*/
class Smarty_Internal_TemplateBase {
// class used for templates
public $template_class = 'Smarty_Internal_Template';
/**
* assigns a Smarty variable
*
* @param array $ |string $tpl_var the template variable name(s)
* @param mixed $value the value to assign
* @param boolean $nocache if true any output of this variable will be not cached
* @param boolean $scope the scope the variable will have (local,parent or root)
*/
public function assign($tpl_var, $value = null, $nocache = false, $scope = SMARTY_LOCAL_SCOPE)
{
if (is_array($tpl_var)) {
foreach ($tpl_var as $_key => $_val) {
if ($_key != '') {
$this->tpl_vars[$_key] = new Smarty_variable($_val, $nocache, $scope);
}
}
} else {
if ($tpl_var != '') {
$this->tpl_vars[$tpl_var] = new Smarty_variable($value, $nocache, $scope);
}
}
}
/**
* assigns a global Smarty variable
*
* @param string $varname the global variable name
* @param mixed $value the value to assign
* @param boolean $nocache if true any output of this variable will be not cached
*/
public function assign_global($varname, $value = null, $nocache = false)
{
if ($varname != '') {
$this->smarty->global_tpl_vars[$varname] = new Smarty_variable($value, $nocache);
}
}
/**
* assigns values to template variables by reference
*
* @param string $tpl_var the template variable name
* @param mixed $ &$value the referenced value to assign
* @param boolean $nocache if true any output of this variable will be not cached
* @param boolean $scope the scope the variable will have (local,parent or root)
*/
public function assign_by_ref($tpl_var, &$value, $nocache = false, $scope = SMARTY_LOCAL_SCOPE)
{
if ($tpl_var != '') {
$this->tpl_vars[$tpl_var] = new Smarty_variable(null, $nocache, $scope);
$this->tpl_vars[$tpl_var]->value = &$value;
}
}
/**
* appends values to template variables
*
* @param array $ |string $tpl_var the template variable name(s)
* @param mixed $value the value to append
* @param boolean $merge flag if array elements shall be merged
* @param boolean $nocache if true any output of this variable will be not cached
* @param boolean $scope the scope the variable will have (local,parent or root)
*/
public function append($tpl_var, $value = null, $merge = false, $nocache = false, $scope = SMARTY_LOCAL_SCOPE)
{
if (is_array($tpl_var)) {
// $tpl_var is an array, ignore $value
foreach ($tpl_var as $_key => $_val) {
if ($_key != '') {
if (!isset($this->tpl_vars[$_key])) {
$tpl_var_inst = $this->getVariable($_key, null, true, false);
if ($tpl_var_inst instanceof Undefined_Smarty_Variable) {
$this->tpl_vars[$_key] = new Smarty_variable(null, $nocache, $scope);
} else {
$this->tpl_vars[$_key] = clone $tpl_var_inst;
if ($scope != SMARTY_LOCAL_SCOPE) {
$this->tpl_vars[$_key]->scope = $scope;
}
}
}
if (!(is_array($this->tpl_vars[$_key]->value) || $this->tpl_vars[$_key]->value instanceof ArrayAccess)) {
settype($this->tpl_vars[$_key]->value, 'array');
}
if ($merge && is_array($_val)) {
foreach($_val as $_mkey => $_mval) {
$this->tpl_vars[$_key]->value[$_mkey] = $_mval;
}
} else {
$this->tpl_vars[$_key]->value[] = $_val;
}
}
}
} else {
if ($tpl_var != '' && isset($value)) {
if (!isset($this->tpl_vars[$tpl_var])) {
$tpl_var_inst = $this->getVariable($tpl_var, null, true, false);
if ($tpl_var_inst instanceof Undefined_Smarty_Variable) {
$this->tpl_vars[$tpl_var] = new Smarty_variable(null, $nocache, $scope);
} else {
$this->tpl_vars[$tpl_var] = clone $tpl_var_inst;
if ($scope != SMARTY_LOCAL_SCOPE) {
$this->tpl_vars[$tpl_var]->scope = $scope;
}
}
}
if (!(is_array($this->tpl_vars[$tpl_var]->value) || $this->tpl_vars[$tpl_var]->value instanceof ArrayAccess)) {
settype($this->tpl_vars[$tpl_var]->value, 'array');
}
if ($merge && is_array($value)) {
foreach($value as $_mkey => $_mval) {
$this->tpl_vars[$tpl_var]->value[$_mkey] = $_mval;
}
} else {
$this->tpl_vars[$tpl_var]->value[] = $value;
}
}
}
}
/**
* appends values to template variables by reference
*
* @param string $tpl_var the template variable name
* @param mixed $ &$value the referenced value to append
* @param boolean $merge flag if array elements shall be merged
*/
public function append_by_ref($tpl_var, &$value, $merge = false)
{
if ($tpl_var != '' && isset($value)) {
if (!isset($this->tpl_vars[$tpl_var])) {
$this->tpl_vars[$tpl_var] = new Smarty_variable();
}
if (!@is_array($this->tpl_vars[$tpl_var]->value)) {
settype($this->tpl_vars[$tpl_var]->value, 'array');
}
if ($merge && is_array($value)) {
foreach($value as $_key => $_val) {
$this->tpl_vars[$tpl_var]->value[$_key] = &$value[$_key];
}
} else {
$this->tpl_vars[$tpl_var]->value[] = &$value;
}
}
}
/**
* clear the given assigned template variable.
*
* @param string $ |array $tpl_var the template variable(s) to clear
*/
public function clear_assign($tpl_var)
{
if (is_array($tpl_var)) {
foreach ($tpl_var as $curr_var) {
unset($this->tpl_vars[$curr_var]);
}
} else {
unset($this->tpl_vars[$tpl_var]);
}
}
/**
* clear all the assigned template variables.
*/
public function clear_all_assign()
{
$this->tpl_vars = array();
}
/**
* load a config file, optionally load just selected sections
*
* @param string $config_file filename
* @param mixed $sections array of section names, single section or null
*/
public function config_load($config_file, $sections = null)
{
// load Config class
$config = new Smarty_Internal_Config($config_file, $this->smarty);
$config->loadConfigVars($sections, $this);
}
/**
* gets the object of a Smarty variable
*
* @param string $variable the name of the Smarty variable
* @param object $_ptr optional pointer to data object
* @param boolean $search_parents search also in parent data
* @return object the object of the variable
*/
public function getVariable($variable, $_ptr = null, $search_parents = true, $error_enable = true)
{
if ($_ptr === null) {
$_ptr = $this;
} while ($_ptr !== null) {
if (isset($_ptr->tpl_vars[$variable])) {
// found it, return it
return $_ptr->tpl_vars[$variable];
}
// not found, try at parent
if ($search_parents) {
$_ptr = $_ptr->parent;
} else {
$_ptr = null;
}
}
if (isset($this->smarty->global_tpl_vars[$variable])) {
// found it, return it
return $this->smarty->global_tpl_vars[$variable];
}
if ($this->smarty->error_unassigned && $error_enable) {
throw new Exception('Undefined Smarty variable "' . $variable . '"');
} else {
return new Undefined_Smarty_Variable;
}
}
/**
* gets a config variable
*
* @param string $variable the name of the config variable
* @return mixed the value of the config variable
*/
public function getConfigVariable($variable)
{
$_ptr = $this;
while ($_ptr !== null) {
if (isset($_ptr->config_vars[$variable])) {
// found it, return it
return $_ptr->config_vars[$variable];
}
// not found, try at parent
$_ptr = $_ptr->parent;
}
if ($this->smarty->error_unassigned) {
throw new Exception('Undefined config variable "' . $variable . '"');
} else {
return '';
}
}
/**
* gets a stream variable
*
* @param string $variable the stream of the variable
* @return mixed the value of the stream variable
*/
public function getStreamVariable($variable)
{
$_result = '';
if ($fp = fopen($variable, 'r+')) {
while (!feof($fp)) {
$_result .= fgets($fp);
}
fclose($fp);
return $_result;
}
if ($this->smarty->$error_unassigned) {
throw new Exception('Undefined stream variable "' . $variable . '"');
} else {
return '';
}
}
/**
* creates a template object
*
* @param string $template the resource handle of the template file
* @param object $parent next higher level of Smarty variables
* @param mixed $cache_id cache id to be used with this template
* @param mixed $compile_id compile id to be used with this template
* @returns object template object
*/
public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
{
if (is_object($cache_id) || is_array($cache_id)) {
$parent = $cache_id;
$cache_id = null;
}
if (is_array($parent)) {
$data = $parent;
$parent = null;
} else {
$data = null;
}
if (!is_object($template)) {
// we got a template resource
$_templateId = $this->buildTemplateId ($template, $cache_id, $compile_id);
// already in template cache?
if (isset($this->smarty->template_objects[$_templateId]) && $this->smarty->caching) {
// return cached template object
$tpl = $this->smarty->template_objects[$_templateId];
} else {
// create new template object
$tpl = new $this->template_class($template, $this->smarty, $parent, $cache_id, $compile_id);
}
} else {
// just return a copy of template class
$tpl = $template;
}
// fill data if present
if (is_array($data)) {
// set up variable values
foreach ($data as $_key => $_val) {
$tpl->tpl_vars[$_key] = new Smarty_variable($_val);
}
}
return $tpl;
}
/**
* generates a template id
*
* @param string $_resource the resource handle of the template file
* @param mixed $_cache_id cache id to be used with this template
* @param mixed $_compile_id compile id to be used with this template
* @returns string a unique template id
*/
function buildTemplateId ($_resource, $_cache_id, $_compile_id)
{
$_cache_id = isset($_cache_id) ? preg_replace('![^\w\|]+!','_',$_cache_id) : null;
$_compile_id = isset($_compile_id) ? preg_replace('![^\w\|]+!','_',$_compile_id) : null;
return crc32($_resource . $_cache_id . $_compile_id);
}
/**
* return current time
*
* @returns double current time
*/
function _get_time()
{
$_mtime = microtime();
$_mtime = explode(" ", $_mtime);
return (double)($_mtime[1]) + (double)($_mtime[0]);
}
}
/**
* class for the Smarty data object
*
* The Smarty data object will hold Smarty variables in the current scope
*
* @param object $parent tpl_vars next higher level of Smarty variables
*/
class Smarty_Data extends Smarty_Internal_TemplateBase {
// array of variable objects
public $tpl_vars = array();
// back pointer to parent object
public $parent = null;
// config vars
public $config_vars = array();
/**
* create Smarty data object
*/
public function __construct ($_parent = null)
{
if (is_object($_parent)) {
// when object set up back pointer
$this->parent = $_parent;
} elseif (is_array($_parent)) {
// set up variable values
foreach ($_parent as $_key => $_val) {
$this->tpl_vars[$_key] = new Smarty_variable($_val);
}
} else {
throw new Exception("Wrong type for template variables");
}
}
}
/**
* class for the Smarty variable object
*
* This class defines the Smarty variable object
*/
class Smarty_Variable {
// template variable
public $value;
public $nocache;
public $scope;
/**
* create Smarty variable object
*
* @param mixed $value the value to assign
* @param boolean $nocache if true any output of this variable will be not cached
* @param boolean $scope the scope the variable will have (local,parent or root)
*/
public function __construct ($value = null, $nocache = false, $scope = SMARTY_LOCAL_SCOPE)
{
$this->value = $value;
$this->nocache = $nocache;
$this->scope = $scope;
}
}
/**
* class for undefined variable object
*
* This class defines an object for undefined variable handling
*/
class Undefined_Smarty_Variable {
// return always false
public function __get ($name)
{
if ($name == 'nocache') {
return false;
} else {
return null;
}
}
}
?>

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