File modules/template_engine/element/Value.class.php

Last commit: Sun Nov 1 00:36:50 2020 +0100	Jan Dankert	Refactoring: Only using the configuration object.


     1 <?php
     2 
     3 namespace template_engine\element;
     4 
     5 use template_engine\engine\TemplateEngine;
     6 use util\text\variables\VariableResolver;
     7 
     8 class Value
     9 {
    10     private $value;
    11     private $expressions = [];
    12 
    13     const CONTEXT_PHP = 0;
    14     const CONTEXT_HTML = 1;
    15     const CONTEXT_RAW = 2;
    16 
    17 
    18 	/**
    19 	 * @param int $type a type from ValueExpression
    20 	 * @param string $name
    21 	 * @return string
    22 	 */
    23     public static function createExpression($type, $name)
    24     {
    25     	$expr = new ValueExpression($type,$name,0);
    26         return $expr->getAsString();
    27     }
    28 
    29     public function __construct($value)
    30     {
    31     	if   ( $value instanceof ValueExpression )
    32 		{
    33 			$value = $value->getAsString();
    34 		}
    35 
    36 		$this->value = $value;
    37     }
    38 
    39 
    40     public function render($context)
    41     {
    42     	$res = new VariableResolver();
    43     	$res->namespaceSeparator = ':';
    44     	$res->defaultSeparator   = '?';
    45 
    46     	$res->addDefaultResolver( function($name) {
    47 			$parts = explode('.', $name);
    48 
    49 			return '\'.'.array_reduce($parts, function ($carry, $item) {
    50 				if (!$carry)
    51 					return '@$' . $item;
    52 				else
    53 					return $carry . '[\''.$item.'\']';
    54 			}, '').'.\'';
    55 		});
    56 
    57 		$res->addResolver( 'message',function($name) {
    58 
    59 			return '\'.@'.TemplateEngine::OUTPUT_ALIAS.'::lang(\'' . $name . '\').\'';
    60 		});
    61 
    62 		$res->addResolver('config', function($name) {
    63 			$config_parts = explode('/', $name);
    64 			return '\'.'.TemplateEngine::OUTPUT_ALIAS.'::config([' . "'" . implode("'" . ',' . "'", $config_parts) . "'" . ']).\'';
    65 		});
    66 
    67 
    68         switch ($context) {
    69             case Value::CONTEXT_PHP:
    70 				$escape = function ($expr) use ($context) {
    71 					return $expr;
    72 				};
    73 				break;
    74 
    75             case Value::CONTEXT_HTML:
    76 				$escape = function ($expr) use ($context) {
    77 						return TemplateEngine::OUTPUT_ALIAS.'::escapeHtml(' . $expr . ')';
    78 				};
    79 				break;
    80 			case Value::CONTEXT_RAW:
    81 				$escape = function ($expr) use ($context) {
    82 					return $expr;
    83 				};
    84 				break;
    85         }
    86 
    87         if   ( $context == self::CONTEXT_PHP ) {
    88 			return '\''.$res->resolveVariables( $this->value ).'\'';
    89 
    90 		} else {
    91 
    92 			$this->value = str_replace('\'','\\\'',$this->value);
    93 			return '<'.'?'.'php '.'echo '. $escape('\''.$res->resolveVariables( $this->value ).'\'').' ?'.'>';
    94 		}
    95     }
    96 
    97     public function __xtoString()
    98 	{
    99 		return print_r($this,true);
   100 	}
   101 }



Download modules/template_engine/element/Value.class.php


History
Sun, 1 Nov 2020 00:36:50 +0100	Jan Dankert	Refactoring: Only using the configuration object.
Mon, 5 Oct 2020 23:32:06 +0200	Jan Dankert	UI: Nicer buttons
Sat, 3 Oct 2020 00:50:14 +0200	Jan Dankert	Fix: Show the rights of node objects.
Sun, 27 Sep 2020 04:09:05 +0200	Jan Dankert	Refactoring: The tree functions should use normal templates as the other actions. Beware of the JS hell.
Sat, 26 Sep 2020 23:15:19 +0200	Jan Dankert	Fix: oops, a missing point.
Sat, 26 Sep 2020 21:05:03 +0200	Jan Dankert	Refactoring: An alias for the Output class, this results in a cleaner template.
Sat, 26 Sep 2020 04:26:55 +0200	Jan Dankert	Refactoring: read configuration values with a class.
Sat, 26 Sep 2020 04:03:53 +0200	Jan Dankert	Refactoring: read language keys with a class.
Sat, 16 May 2020 01:08:40 +0200	Jan Dankert	Refactoring: Switching the ValueExpressions in the templates to the new VariableResolver for supporting nested variables like ${message:prefix_${key}}.
Thu, 27 Feb 2020 22:30:13 +0100	Jan Dankert	New: ValueExpressions are able to contain other Value objects. Now data-driven messages are possible again :)
Sat, 22 Feb 2020 22:23:01 +0100	Jan Dankert	Refactoring: Enable Autoloading, Fix namespace structure.