kylekatarnls/sbp

<?php

namespace Sbp\Plugins\Core;

class Summons
{
    public static function getStarsSummons($content, $caller)
    {
        $validName = constant($caller.'::VALIDNAME');

        return array(
            // $var **= func() to $var = func($var)
            '#(\$.*\S)\s*\*\*=\s*('.$validName.')\s*\(\s*\)#U' => '$1 = $2($1)',

            // $var **= func(x, y) to $var = func($var, x, y)
            '#(\$.*\S)\s*\*\*=\s*('.$validName.')\s*\(#U' => '$1 = $2($1, ',

            // func(**$var, x, y) to $var = func($var, x, y)
            '#([\(;\s\.+/*=\r\n]\s*)('.$validName.')\s*\(\s*\*\*\s*(\$[^\),]+)#' => '$1$3 = $2($3',
        );
    }

    public static function getOperatorsSummons($content, $caller)
    {
        $operators = constant($caller.'::OPERATORS');

        return array(
            // $a (or= foo) to $a = ($a or foo)
            '#(\$.*\S)\s*\(\s*('.$operators.')=\s*(\S)#U' => '$1 = ($1 $2 $3',

            // $a or= foo to $a = $a or foo
            '#(\$.*\S)\s*('.$operators.')=\s*(\S)#U' => '$1 = $1 $2 $3',
        );
    }

    public static function getVarHandles($content, $caller)
    {
        $validVar = constant($caller.'::VALIDVAR');

        return array(
            '#('.$validVar.')\s*\!\?==\s*(\S[^;\n\r]*);#U' => 'if (!isset($1)) { $1 = $4; }',

            '#('.$validVar.')\s*\!\?==\s*(\S[^;\n\r]*)(?=[;\n\r]|\$)#U' => 'if (!isset($1)) { $1 = $4; }',

            '#('.$validVar.')\s*\!\?=\s*(\S[^;\n\r]*);#U' => 'if (!$1) { $1 = $4; }',

            '#('.$validVar.')\s*\!\?=\s*(\S[^;\n\r]*)(?=[;\n\r]|\$)#U' => 'if (!$1) { $1 = $4; }',

            '#('.$validVar.')\s*<->\s*('.$validVar.')#U' => '$_sv = $4; $4 = $1; $1 = $_sv; unset($_sv)',

            '#('.$validVar.')((?:\!\!|\!|~)\s*)(?=[\r\n;])#U' => '$1 = $4$1',
        );
    }
}