diff options
Diffstat (limited to 'STECore.php')
| -rw-r--r-- | STECore.php | 114 |
1 files changed, 71 insertions, 43 deletions
diff --git a/STECore.php b/STECore.php index 6bde63f..add09ad 100644 --- a/STECore.php +++ b/STECore.php @@ -10,19 +10,18 @@ class STECore { private $tags; private $storage_access; private $cur_tpl_dir; + private $scope; /* * Variables: Public variables * * $blocks - Associative array of blocks (see the language definition). * $blockorder - The order of the blocks (an array) - * $vars - Associative array of all template variables. Use this to pass data to your templates. * $mute_runtime_errors - If true (default) a <RuntimeError> exception will result in no output from the tag, if false a error message will be written to output. * $fatal_error_on_missing_tag - If true, STE will throw a <FatalRuntimeError> if a tag was called that was not registered, otherwise (default) a regular <RuntimeError> will be thrown and automatically handled by STE (see <$mute_runtime_errors>). */ public $blocks; public $blockorder; - public $vars; public $mute_runtime_errors = true; public $fatal_error_on_missing_tag = false; @@ -36,9 +35,10 @@ class STECore { $this->storage_access = $storage_access; $this->cur_tpl_dir = "/"; STEStandardLibrary::_register_lib($this); - $this->vars = array(); $this->blockorder = array(); $this->blocks = array(); + + $this->set_scope(new Scope(array())); } /* @@ -140,46 +140,11 @@ class STECore { * Returns: * A Reference to the variable. */ - public function &get_var_reference($name, $create_if_not_exist) { - $ref = &$this->_get_var_reference($this->vars, $name, $create_if_not_exist); + $ref = &$this->scope->get_var_reference($name, $create_if_not_exist); return $ref; } - private function &_get_var_reference(&$from, $name, $create_if_not_exist) { - $nullref = NULL; - - $bracket_open = strpos($name, "["); - if($bracket_open === false) { - if(isset($from[$name]) or $create_if_not_exist) { - $ref = &$from[$name]; - return $ref; - } else { - return $nullref; - } - } else { - $bracket_close = strpos($name, "]", $bracket_open); - if($bracket_close === false) { - throw new RuntimeError("Invalid varname \"$name\". Missing closing \"]\"."); - } - $varname = substr($name, 0, $bracket_open); - $name = substr($name, $bracket_open + 1, $bracket_close - $bracket_open - 1) . substr($name, $bracket_close + 1); - if(!is_array($from[$varname])) { - if($create_if_not_exist) { - $from[$varname] = array(); - } else { - return $nullref; - } - } - try { - $ref = &$this->_get_var_reference($from[$varname], $name, $create_if_not_exist); - return $ref; - } catch(Exception $e) { - throw new RuntimeError("Invalid varname \"$name\". Missing closing \"]\"."); - } - } - } - /* * Function: set_var_by_name * Set a template variable by its name. @@ -193,8 +158,11 @@ class STECore { * <RuntimeError> if the variable name can not be parsed (e.g. unbalanced brackets). */ public function set_var_by_name($name, $val) { - $ref = &$this->_get_var_reference($this->vars, $name, true); - $ref = $val; + $this->scope->set_var_by_name($name, $val); + } + + public function set_local_var($name, $val) { + $this->scope->set_local_var($name, $val); } /* @@ -212,8 +180,7 @@ class STECore { * The variables value. */ public function get_var_by_name($name) { - $ref = $this->_get_var_reference($this->vars, $name, false); - return $ref === NULL ? "" : $ref; + return $this->scope->get_var_by_name($name); } /* @@ -297,4 +264,65 @@ class STECore { public function evalbool($txt) { return trim($txt . "") != ""; } + + public function get_scope() { + return $this->scope; + } + + public function set_scope($scope) { + $this->scope = $scope; + } + + public function make_closure($fx) { + $bound_scope = $this->scope; + return function() use($bound_scope, $fx) { + $args = func_get_args(); + $ste = $args[0]; + + $prev = $ste->get_scope(); + $scope = $bound_scope->new_subscope(); + $ste->set_scope($scope); + + try { + $result = call_user_func_array($fx, $args); + $ste->set_scope($prev); + return $result; + } catch(\Exception $e) { + $ste->set_scope($prev); + throw $e; + } + }; + } + + public function __get($name) { + if($name === "vars") { + return $this->scope; + } + + $trace = debug_backtrace(); + trigger_error( + 'Undefined property via __get(): ' . $name . + ' in ' . $trace[0]['file'] . + ' on line ' . $trace[0]['line'], + E_USER_NOTICE); + return NULL; + } + + public function __set($name, $val) { + if($name !== "vars") { + $trace = debug_backtrace(); + trigger_error( + 'Undefined property via __set(): ' . $name . + ' in ' . $trace[0]['file'] . + ' on line ' . $trace[0]['line'], + E_USER_NOTICE); + return; + } + + if(is_array($val)) { + foreach($val as $k => $v) { + $this->scope[$k] = $v; + } + } + } } |