Value::processString() - Code Metrics - Inspection of "Merge branch 'tokens-class'" - Level-2/Transphporm - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 0ada29...ecc437 )

by Richard

created 2016-09-14 11:42 UTC

Value::processString() A

↳ Parent: Value

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	3
rs	10
cc	1
eloc	2
nc	1
nop	1

<?php
/* @description     Transformation Style Sheets - Revolutionising PHP templating    *
 * @author          Tom Butler [email protected]                                             *
 * @copyright       2015 Tom Butler <[email protected]> | https://r.je/                      *
 * @license         http://www.opensource.org/licenses/bsd-license.php  BSD License *
 * @version         1.0                                                             */
namespace Transphporm\Parser;
/** Parses "string" and function(args) e.g. data(foo) or iteration(bar) */
class Value {
	private $baseData;
	private $autoLookup;
	/*
		Stores the last value e.g.
			"a" + "b"
		Will store "a" before reading the token for the + and perfoming the concatenate operation
	*/
	private $last;
	private $data;
	private $result;

	private $tokenFuncs = [
			Tokenizer::NOT => 'processComparator',
			Tokenizer::EQUALS => 'processComparator',
			Tokenizer::DOT => 'processDot',
			Tokenizer::OPEN_SQUARE_BRACKET => 'processSquareBracket',
			Tokenizer::ARG => 'processSeparator',
			Tokenizer::CONCAT => 'processSeparator',
			Tokenizer::NAME => 'processScalar',
			Tokenizer::NUMERIC => 'processString',
			Tokenizer::BOOL => 'processString',
			Tokenizer::STRING => 'processString',
			Tokenizer::OPEN_BRACKET => 'processBrackets'
	];

	public function __construct($data, $autoLookup = false) {
		$this->baseData = $data;
		$this->autoLookup = $autoLookup;
	}

	public function parse($str) {
		$tokenizer = new Tokenizer($str);
		$tokens = $tokenizer->getTokens();
		$this->result = $this->parseTokens($tokens, $this->baseData);
		return $this->result;
	}

	public function parseTokens($tokens, $data = null) {
		$this->result = new ValueResult;
		$this->data = new ValueData($data ? $data : $this->baseData);
		$this->last = null;

		if (count($tokens) <= 0) return [$data];

		foreach (new TokenFilterIterator($tokens, [Tokenizer::WHITESPACE]) as $token) {
			$this->{$this->tokenFuncs[$token['type']]}($token);
		}

		$this->processLast();
		return $this->result->getResult();
	}

	private function processComparator($token) {
		$this->processLast();

		if (!(in_array($this->result->getMode(), array_keys($this->tokenFuncs, 'processComparator')) && $token['type'] == Tokenizer::EQUALS)) {
			$this->result->setMode($token['type']);
			$this->last = null;
		}
	}

	//Reads the last selected value from $data regardless if it's an array or object and overrides $this->data with the new value
	//Dot moves $data to the next object in $data foo.bar moves the $data pointer from `foo` to `bar`
	private function processDot($token) {

		if ($this->last !== null) $this->data->traverse($this->last);
		else {
			//When . is not preceeded by anything, treat it as part of the string instead of an operator
			// foo.bar is treated as looking up `bar` in `foo` whereas .foo is treated as the string ".foo"
			$lastResult = $this->result->pop();
			if ($lastResult) $this->data = new ValueData($lastResult);
			else {
				$this->processString(['value' => '.']);
				$this->result->setMode(Tokenizer::CONCAT);
			}
		}

		$this->last = null;
	}

	private function processSquareBracket($token) {
		$parser = new Value($this->baseData, $this->autoLookup);
		if ($this->baseData instanceof \Transphporm\Functionset && $this->baseData->hasFunction($this->last)) {
			$this->callTransphpormFunctions($token);
		}
		else {
			if ($this->last !== null) $this->data->traverse($this->last);
			$this->last = $parser->parseTokens($token['value'], null)[0];
		}
	}

	private function processSeparator($token) {
		$this->result->setMode($token['type']);
	}

	private function processScalar($token) {
		$this->last = $token['value'];
	}

	private function processString($token) {
		$this->result->processValue($token['value']);
	}

	private function processBrackets($token) {
		if ($this->baseData instanceof \Transphporm\Functionset && $this->baseData->hasFunction($this->last)) {
			$this->callTransphpormFunctions($token);
		}
		else {
			$this->processNested($token);
		}
	}

	private function processNested($token) {
		$parser = new Value($this->baseData, $this->autoLookup);
		$funcResult = $this->data->parseNested($parser, $token, $this->last);
		$this->result->processValue($funcResult);
		$this->last = null;
	}

	private function callTransphpormFunctions($token) {
		$this->result->processValue($this->baseData->{$this->last}($token['value']));
		foreach ($this->result->getResult() as $i => $value) {
			if (is_scalar($value)) {
				$val = $this->data->read($value);
				if ($val) $this->result[$i] = $val;
			}
		}
		$this->last = null;
	}

	//Applies the current operation to whatever is in $last based on $mode
	private function processLast() {
		if ($this->last !== null) {
			try {
				$value = $this->data->extract($this->last, $this->autoLookup);
				$this->result->processValue($value);
			}
			catch (\UnexpectedValueException $e) {
				if (!$this->autoLookup) {
					$this->result->processValue($this->last);
				}
				else {
					$this->result->clear();
					$this->result[0] = false;
				}
			}
		}
	}
}


1			<?php
2			/* @description Transformation Style Sheets - Revolutionising PHP templating *
3			* @author Tom Butler [email protected] *
4			* @copyright 2015 Tom Butler <[email protected]> \| https://r.je/ *
5			* @license http://www.opensource.org/licenses/bsd-license.php BSD License *
6			* @version 1.0 */
7			namespace Transphporm\Parser;
8			/** Parses "string" and function(args) e.g. data(foo) or iteration(bar) */
9			class Value {
10			private $baseData;
11			private $autoLookup;
12			/*
13			Stores the last value e.g.
14			"a" + "b"
15			Will store "a" before reading the token for the + and perfoming the concatenate operation
16			*/
17			private $last;
18			private $data;
19			private $result;
20
21			private $tokenFuncs = [
22			Tokenizer::NOT => 'processComparator',
23			Tokenizer::EQUALS => 'processComparator',
24			Tokenizer::DOT => 'processDot',
25			Tokenizer::OPEN_SQUARE_BRACKET => 'processSquareBracket',
26			Tokenizer::ARG => 'processSeparator',
27			Tokenizer::CONCAT => 'processSeparator',
28			Tokenizer::NAME => 'processScalar',
29			Tokenizer::NUMERIC => 'processString',
30			Tokenizer::BOOL => 'processString',
31			Tokenizer::STRING => 'processString',
32			Tokenizer::OPEN_BRACKET => 'processBrackets'
33			];
34
35			public function __construct($data, $autoLookup = false) {
36			$this->baseData = $data;
37			$this->autoLookup = $autoLookup;
38			}
39
40			public function parse($str) {
41			$tokenizer = new Tokenizer($str);
42			$tokens = $tokenizer->getTokens();
43			$this->result = $this->parseTokens($tokens, $this->baseData);
44			return $this->result;
45			}
46
47			public function parseTokens($tokens, $data = null) {
48			$this->result = new ValueResult;
49			$this->data = new ValueData($data ? $data : $this->baseData);
50			$this->last = null;
51
52			if (count($tokens) <= 0) return [$data];
53
54			foreach (new TokenFilterIterator($tokens, [Tokenizer::WHITESPACE]) as $token) {
55			$this->{$this->tokenFuncs[$token['type']]}($token);
56			}
57
58			$this->processLast();
59			return $this->result->getResult();
60			}
61
62			private function processComparator($token) {
63			$this->processLast();
64
65			if (!(in_array($this->result->getMode(), array_keys($this->tokenFuncs, 'processComparator')) && $token['type'] == Tokenizer::EQUALS)) {
66			$this->result->setMode($token['type']);
67			$this->last = null;
68			}
69			}
70
71			//Reads the last selected value from $data regardless if it's an array or object and overrides $this->data with the new value
72			//Dot moves $data to the next object in $data foo.bar moves the $data pointer from `foo` to `bar`
73			private function processDot($token) {
			0 ignored issues – show Unused Code introduced 2016-06-07 15:20 UTC by Report Bug Copy Issue Report The parameter `$token` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
74			if ($this->last !== null) $this->data->traverse($this->last);
75			else {
76			//When . is not preceeded by anything, treat it as part of the string instead of an operator
77			// foo.bar is treated as looking up `bar` in `foo` whereas .foo is treated as the string ".foo"
78			$lastResult = $this->result->pop();
79			if ($lastResult) $this->data = new ValueData($lastResult);
80			else {
81			$this->processString(['value' => '.']);
82			$this->result->setMode(Tokenizer::CONCAT);
83			}
84			}
85
86			$this->last = null;
87			}
88
89			private function processSquareBracket($token) {
90			$parser = new Value($this->baseData, $this->autoLookup);
91			if ($this->baseData instanceof \Transphporm\Functionset && $this->baseData->hasFunction($this->last)) {
92			$this->callTransphpormFunctions($token);
93			}
94			else {
95			if ($this->last !== null) $this->data->traverse($this->last);
96			$this->last = $parser->parseTokens($token['value'], null)[0];
97			}
98			}
99
100			private function processSeparator($token) {
101			$this->result->setMode($token['type']);
102			}
103
104			private function processScalar($token) {
105			$this->last = $token['value'];
106			}
107
108			private function processString($token) {
109			$this->result->processValue($token['value']);
110			}
111
112			private function processBrackets($token) {
113			if ($this->baseData instanceof \Transphporm\Functionset && $this->baseData->hasFunction($this->last)) {
114			$this->callTransphpormFunctions($token);
115			}
116			else {
117			$this->processNested($token);
118			}
119			}
120
121			private function processNested($token) {
122			$parser = new Value($this->baseData, $this->autoLookup);
123			$funcResult = $this->data->parseNested($parser, $token, $this->last);
124			$this->result->processValue($funcResult);
125			$this->last = null;
126			}
127
128			private function callTransphpormFunctions($token) {
129			$this->result->processValue($this->baseData->{$this->last}($token['value']));
130			foreach ($this->result->getResult() as $i => $value) {
131			if (is_scalar($value)) {
132			$val = $this->data->read($value);
133			if ($val) $this->result[$i] = $val;
134			}
135			}
136			$this->last = null;
137			}
138
139			//Applies the current operation to whatever is in $last based on $mode
140			private function processLast() {
141			if ($this->last !== null) {
142			try {
143			$value = $this->data->extract($this->last, $this->autoLookup);
144			$this->result->processValue($value);
145			}
146			catch (\UnexpectedValueException $e) {
147			if (!$this->autoLookup) {
148			$this->result->processValue($this->last);
149			}
150			else {
151			$this->result->clear();
152			$this->result[0] = false;
153			}
154			}
155			}
156			}
157			}
158

Level-2 / Transphporm

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Value::processString() A

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