Completed
Pull Request — master (#6)
by Maxim
02:19
created

InjectedStringSuit::wrapWithClosure()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 7
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 5
CRAP Score 2

Importance

Changes 0
Metric Value
cc 2
eloc 4
nc 2
nop 0
dl 0
loc 7
ccs 5
cts 5
cp 1
crap 2
rs 9.4285
c 0
b 0
f 0
1
<?php
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/**
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 * This file is a part of "Axessors" library.
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 *
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 * @author <[email protected]>
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 * @license GPL
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 */
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namespace NoOne4rever\Axessors;
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/**
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 * Class InjectedStringParser.
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 * 
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 * Processes *injected* callbacks and conditions.
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 * 
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 * @package NoOne4rever\Axessors
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 */
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class InjectedStringSuit
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{
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    /** @var string expression */
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    private $expression;
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    /**
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     * InjectedStringSuit constructor.
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     *
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     * @param string $expression expression
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     */
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    public function __construct(string $expression)
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    {
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        $this->expression = $expression;
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    }
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    /**
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     * Turns code block into a simple closure.
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     * 
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     * @return $this object for methods chain
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     */
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    public function wrapWithClosure(): self
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    {
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        if (preg_match('/^`{[^}]*}`$/', $this->expression)) {
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            $this->expression = substr($this->expression, 1, strlen($this->expression) - 2);
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            $this->expression = "`(function(\$var){$this->expression})(\$var)`";
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        }
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        return $this;
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    }
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    /**
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     * Processes "$." in injected string.
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     * 
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     * @return InjectedStringSuit object for methods chain
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     */
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    public function processThis(): self
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    {
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        $expression = preg_replace_callback('/"[^"]"|\'[^\']\'/', function (array $matches) {
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            return str_replace('$.', '\\$.', $matches[0]);
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        }, $this->expression);
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        $expression = preg_replace('/\$\./', '$this->', $expression);
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        $expression = preg_replace_callback('/"[^"]"|\'[^\']\'/', function (array $matches) {
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            return str_replace('\\$.', '$.', $matches[0]);
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        }, $expression);
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        $this->expression = $expression;
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        return $this;
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    }
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    /**
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     * Resolves class names in *injected* callbacks and conditions.
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     *
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     * @param string $namespace namespace
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     * 
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     * @return InjectedStringSuit object for methods chain
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     */
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    public function resolveClassNames(string $namespace): self
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    {
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        $expression = preg_replace_callback('/"[^"]"|\'[^\']\'/', function (array $matches) {
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            return str_replace(':', ':\\', $matches[0]);
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        }, $this->expression);
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        $expression = preg_replace('/(?<!:):(?=([a-zA-Z_][a-zA-Z0-9_]*))/', "$namespace\\", $expression);
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        $expression = preg_replace_callback('/"[^"]"|\'[^\']\'/', function (array $matches) {
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            return str_replace(':\\', ':', $matches[0]);
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        }, $expression);
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        $this->expression = $expression;
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        return $this;
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    }
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    /**
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     * Adds slashes to string.
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     *
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     * @param string $charlist symbols add slashes to
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     * 
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     * @return InjectedStringSuit object for methods chain 
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     */
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    public function addSlashes(string $charlist): self
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    {
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        $this->expression = preg_replace_callback(
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            '/`([^`]|\\\\`)+((?<!\\\\)`)/',
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            function (array $matches) use($charlist): string {
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                return addcslashes($matches[0], $charlist);
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            },
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            $this->expression
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        );
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        return $this;
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    }
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    /**
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     * Getter for InjectedStringProcessor::$expression.
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     * 
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     * @return string processed expression
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     */
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    public function get(): string 
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    {
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        return $this->expression;
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    }
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}