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First public release of MyAAC

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slawkens1
2017-05-01 20:02:45 +02:00
parent 31172b4883
commit b5362d0654
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180
system/libs/dwoo/plugins/builtin/blocks/if.php Normal file
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<?php
/**
* Conditional block, the syntax is very similar to the php one, allowing () || && and
* other php operators. Additional operators and their equivalent php syntax are as follow :
*
* eq -> ==
* neq or ne -> !=
* gte or ge -> >=
* lte or le -> <=
* gt -> >
* lt -> <
* mod -> %
* not -> !
* X is [not] div by Y -> (X % Y) == 0
* X is [not] even [by Y] -> (X % 2) == 0 or ((X/Y) % 2) == 0
* X is [not] odd [by Y] -> (X % 2) != 0 or ((X/Y) % 2) != 0
*
* This software is provided 'as-is', without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from the use of this software.
*
* @author Jordi Boggiano <j.boggiano@seld.be>
* @copyright Copyright (c) 2008, Jordi Boggiano
* @license http://dwoo.org/LICENSE Modified BSD License
* @link http://dwoo.org/
* @version 1.0.0
* @date 2008-10-23
* @package Dwoo
*/
class Dwoo_Plugin_if extends Dwoo_Block_Plugin implements Dwoo_ICompilable_Block, Dwoo_IElseable
{
public function init(array $rest)
{
}
public static function replaceKeywords(array $params, Dwoo_Compiler $compiler)
{
$p = array();
reset($params);
while (list($k,$v) = each($params)) {
$v = (string) $v;
if(substr($v, 0, 1) === '"' || substr($v, 0, 1) === '\'') {
$vmod = strtolower(substr($v, 1, -1));
} else {
$vmod = strtolower($v);
}
switch($vmod) {
case 'and':
$p[] = '&&';
break;
case 'or':
$p[] = '||';
break;
case '==':
case 'eq':
$p[] = '==';
break;
case '<>':
case '!=':
case 'ne':
case 'neq':
$p[] = '!=';
break;
case '>=':
case 'gte':
case 'ge':
$p[] = '>=';
break;
case '<=':
case 'lte':
case 'le':
$p[] = '<=';
break;
case '>':
case 'gt':
$p[] = '>';
break;
case '<':
case 'lt':
$p[] = '<';
break;
case '===':
$p[] = '===';
break;
case '!==':
$p[] = '!==';
break;
case 'is':
if (isset($params[$k+1]) && strtolower(trim($params[$k+1], '"\'')) === 'not') {
$negate = true;
next($params);
} else {
$negate = false;
}
$ptr = 1+(int)$negate;
if (!isset($params[$k+$ptr])) {
$params[$k+$ptr] = '';
} else {
$params[$k+$ptr] = trim($params[$k+$ptr], '"\'');
}
switch($params[$k+$ptr]) {
case 'div':
if (isset($params[$k+$ptr+1]) && strtolower(trim($params[$k+$ptr+1], '"\'')) === 'by') {
$p[] = ' % '.$params[$k+$ptr+2].' '.($negate?'!':'=').'== 0';
next($params);
next($params);
next($params);
} else {
throw new Dwoo_Compilation_Exception($compiler, 'If : Syntax error : syntax should be "if $a is [not] div by $b", found '.$params[$k-1].' is '.($negate?'not ':'').'div '.$params[$k+$ptr+1].' '.$params[$k+$ptr+2]);
}
break;
case 'even':
$a = array_pop($p);
if (isset($params[$k+$ptr+1]) && strtolower(trim($params[$k+$ptr+1], '"\'')) === 'by') {
$b = $params[$k+$ptr+2];
$p[] = '('.$a .' / '.$b.') % 2 '.($negate?'!':'=').'== 0';
next($params);
next($params);
} else {
$p[] = $a.' % 2 '.($negate?'!':'=').'== 0';
}
next($params);
break;
case 'odd':
$a = array_pop($p);
if (isset($params[$k+$ptr+1]) && strtolower(trim($params[$k+$ptr+1], '"\'')) === 'by') {
$b = $params[$k+$ptr+2];
$p[] = '('.$a .' / '.$b.') % 2 '.($negate?'=':'!').'== 0';
next($params);
next($params);
} else {
$p[] = $a.' % 2 '.($negate?'=':'!').'== 0';
}
next($params);
break;
default:
throw new Dwoo_Compilation_Exception($compiler, 'If : Syntax error : syntax should be "if $a is [not] (div|even|odd) [by $b]", found '.$params[$k-1].' is '.$params[$k+$ptr+1]);
}
break;
case '%':
case 'mod':
$p[] = '%';
break;
case '!':
case 'not':
$p[] = '!';
break;
default:
$p[] = $v;
}
}
return $p;
}
public static function preProcessing(Dwoo_Compiler $compiler, array $params, $prepend, $append, $type)
{
return '';
}
public static function postProcessing(Dwoo_Compiler $compiler, array $params, $prepend, $append, $content)
{
$params = $compiler->getCompiledParams($params);
$pre = Dwoo_Compiler::PHP_OPEN.'if ('.implode(' ', self::replaceKeywords($params['*'], $compiler)).") {\n".Dwoo_Compiler::PHP_CLOSE;
$post = Dwoo_Compiler::PHP_OPEN."\n}".Dwoo_Compiler::PHP_CLOSE;
if (isset($params['hasElse'])) {
$post .= $params['hasElse'];
}
return $pre . $content . $post;
}
}