IfTag::render() - Code Metrics - platine-php/template - Measure and Improve Code Quality continuously with Scrutinizer

IfTag::render() C
last analyzed 2025-06-24 10:25 UTC

↳ Parent: IfTag

Complexity

Conditions	16
Paths	8

Size

Total Lines	109
Code Lines	72

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	16
eloc	72
nc	8
nop	1
dl	0
loc	109
rs	5.5666
c	0
b	0
f	0

How to fix Long Method Complexity

<?php

/**
 * Platine Template
 *
 * Platine Template is a template engine that has taken a lot of inspiration from Django.
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2020 Platine Template
 * Copyright (c) 2014 Guz Alexander, http://guzalexander.com
 * Copyright (c) 2011, 2012 Harald Hanek, http://www.delacap.com
 * Copyright (c) 2006 Mateo Murphy
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/**
 *  @file IfTag.php
 *
 *  The "if" Template tag class
 *
 *  @package    Platine\Template\Tag
 *  @author Platine Developers Team
 *  @copyright  Copyright (c) 2020
 *  @license    http://opensource.org/licenses/MIT  MIT License
 *  @link   https://www.platine-php.com
 *  @version 1.0.0
 *  @filesource
 */

declare(strict_types=1);

namespace Platine\Template\Tag;

use Platine\Template\Exception\ParseException;
use Platine\Template\Parser\AbstractCondition;
use Platine\Template\Parser\Context;
use Platine\Template\Parser\Lexer;
use Platine\Template\Parser\Parser;
use Platine\Template\Parser\Token;

/**
 * @class IfTag
 * @package Platine\Template\Tag
 */
class IfTag extends AbstractCondition
{
    /**
     * holding the nodes to render for each logical block
     * @var array<int, mixed>
     */
    protected array $nodeListHolders = [];

    /**
     * holding the block type, block markup (conditions)
     *  and block node list
     * @var array<int, mixed>
     */
    protected array $blocks = [];

    /**
    * {@inheritdoc}
    */
    public function __construct(string $markup, array &$tokens, Parser $parser)
    {
        //Initialize
        $this->nodeListHolders[count($this->blocks)] = [];
        $this->nodeList = & $this->nodeListHolders[count($this->blocks)];
        array_push($this->blocks, ['if', $markup, & $this->nodeList]);

        parent::__construct($markup, $tokens, $parser);
    }

    /**
    * {@inheritdoc}
    */
    public function render(Context $context): string
    {
        $context->push();
        $lexerLogical = new Lexer('/\s+(and|or)\s+/');
        $lexerConditional = new Lexer(
            '/('
                . Token::QUOTED_FRAGMENT
                . ')\s*([=!<>a-z_]+)?\s*('
                . Token::QUOTED_FRAGMENT
                . ')?/'
        );

        $result = '';
        foreach ($this->blocks as $block) {
            if ($block[0] === 'else') {
                $result = $this->renderAll($block[2], $context);

                break;
            }

            if ($block[0] === 'if' || $block[0] === 'elseif') {
                // Extract logical operators
                $lexerLogical->matchAll($block[1]);
                $operators = $lexerLogical->getArrayMatch(1);
                // Extract individual conditions
                $individualConditions = $lexerLogical->split($block[1]);

                $conditions = [];
                foreach ($individualConditions as $condition) {
                    if ($lexerConditional->match($condition)) {
                        $left = $lexerConditional->isMatchNotNull(1)
                                ? $lexerConditional->getStringMatch(1)
                                : null;
                        $operator = $lexerConditional->isMatchNotNull(2)
                                ? $lexerConditional->getStringMatch(2)
                                : null;
                        $right = $lexerConditional->isMatchNotNull(3)
                                ? $lexerConditional->getStringMatch(3)
                                : null;

                        array_push($conditions, [
                            'left' => $left,
                            'operator' => $operator,
                            'right' => $right,
                        ]);
                    } else {
                        throw new ParseException(sprintf(
                            'Syntax Error in "%s" - Valid syntax: if [conditions]',
                            'if'
                        ));
                    }
                }

                if (count($operators) > 0) {
                    // If statement contains and/or
                    $display = $this->evaluateCondition(
                        $conditions[0]['left'],
                        $conditions[0]['right'],
                        $conditions[0]['operator'],
                        $context
                    );

                    foreach ($operators as $key => $operator) {
                        if ($operator === 'and') {
                            $display = (
                                $display
                                && $this->evaluateCondition(
                                    $conditions[$key + 1]['left'],
                                    $conditions[$key + 1]['right'],
                                    $conditions[$key + 1]['operator'],
                                    $context
                                )
                            );
                        } else {
                            $display = (
                                $display
                                || $this->evaluateCondition(
                                    $conditions[$key + 1]['left'],
                                    $conditions[$key + 1]['right'],
                                    $conditions[$key + 1]['operator'],
                                    $context
                                )
                            );
                        }
                    }
                } else {
                    // If statement is a single condition
                    $display = $this->evaluateCondition(
                        $conditions[0]['left'],
                        $conditions[0]['right'],
                        $conditions[0]['operator'],
                        $context
                    );
                }

                // hook for if not tag
                $display = $this->negateCondition($display);

                if ($display) {
                    $result = $this->renderAll($block[2], $context);

                    break;
                }
            }
        }

        $context->pop();

        return $result;
    }

    /**
     * Handler negate condition
     * @param mixed $value
     * @return mixed
     */
    protected function negateCondition(mixed $value): mixed
    {
        // no need to negate a condition in a regular `if`
        // tag (will do that in `ifnot` tag)

        return $value;
    }

    /**
    * {@inheritdoc}
    */
    protected function unknownTag(string $tag, string $param, array $tokens): void
    {
        if ($tag === 'else' || $tag === 'elseif') {
            // Update reference to node list holder for this block
            $this->nodeListHolders[count($this->blocks) + 1] = [];
            $this->nodeList = & $this->nodeListHolders[count($this->blocks) + 1];
            array_push($this->blocks, [$tag, $param, &$this->nodeList]);
        } else {
            parent::unknownTag($tag, $param, $tokens);
        }
    }
}


1			<?php
2
3			/**
4			* Platine Template
5			*
6			* Platine Template is a template engine that has taken a lot of inspiration from Django.
7			*
8			* This content is released under the MIT License (MIT)
9			*
10			* Copyright (c) 2020 Platine Template
11			* Copyright (c) 2014 Guz Alexander, http://guzalexander.com
12			* Copyright (c) 2011, 2012 Harald Hanek, http://www.delacap.com
13			* Copyright (c) 2006 Mateo Murphy
14			*
15			* Permission is hereby granted, free of charge, to any person obtaining a copy
16			* of this software and associated documentation files (the "Software"), to deal
17			* in the Software without restriction, including without limitation the rights
18			* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
19			* copies of the Software, and to permit persons to whom the Software is
20			* furnished to do so, subject to the following conditions:
21			*
22			* The above copyright notice and this permission notice shall be included in all
23			* copies or substantial portions of the Software.
24			*
25			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26			* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27			* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
28			* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
29			* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
30			* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31			* SOFTWARE.
32			*/
33
34			/**
35			* @file IfTag.php
36			*
37			* The "if" Template tag class
38			*
39			* @package Platine\Template\Tag
40			* @author Platine Developers Team
41			* @copyright Copyright (c) 2020
42			* @license http://opensource.org/licenses/MIT MIT License
43			* @link https://www.platine-php.com
44			* @version 1.0.0
45			* @filesource
46			*/
47
48			declare(strict_types=1);
49
50			namespace Platine\Template\Tag;
51
52			use Platine\Template\Exception\ParseException;
53			use Platine\Template\Parser\AbstractCondition;
54			use Platine\Template\Parser\Context;
55			use Platine\Template\Parser\Lexer;
56			use Platine\Template\Parser\Parser;
57			use Platine\Template\Parser\Token;
58
59			/**
60			* @class IfTag
61			* @package Platine\Template\Tag
62			*/
63			class IfTag extends AbstractCondition
64			{
65			/**
66			* holding the nodes to render for each logical block
67			* @var array<int, mixed>
68			*/
69			protected array $nodeListHolders = [];
70
71			/**
72			* holding the block type, block markup (conditions)
73			* and block node list
74			* @var array<int, mixed>
75			*/
76			protected array $blocks = [];
77
78			/**
79			* {@inheritdoc}
80			*/
81			public function __construct(string $markup, array &$tokens, Parser $parser)
82			{
83			//Initialize
84			$this->nodeListHolders[count($this->blocks)] = [];
85			$this->nodeList = & $this->nodeListHolders[count($this->blocks)];
86			array_push($this->blocks, ['if', $markup, & $this->nodeList]);
87
88			parent::__construct($markup, $tokens, $parser);
89			}
90
91			/**
92			* {@inheritdoc}
93			*/
94			public function render(Context $context): string
95			{
96			$context->push();
97			$lexerLogical = new Lexer('/\s+(and\|or)\s+/');
98			$lexerConditional = new Lexer(
99			'/('
100			. Token::QUOTED_FRAGMENT
101			. ')\s([=!<>a-z_]+)?\s('
102			. Token::QUOTED_FRAGMENT
103			. ')?/'
104			);
105
106			$result = '';
107			foreach ($this->blocks as $block) {
108			if ($block[0] === 'else') {
109			$result = $this->renderAll($block[2], $context);
110
111			break;
112			}
113
114			if ($block[0] === 'if' \|\| $block[0] === 'elseif') {
115			// Extract logical operators
116			$lexerLogical->matchAll($block[1]);
117			$operators = $lexerLogical->getArrayMatch(1);
118			// Extract individual conditions
119			$individualConditions = $lexerLogical->split($block[1]);
120
121			$conditions = [];
122			foreach ($individualConditions as $condition) {
123			if ($lexerConditional->match($condition)) {
124			$left = $lexerConditional->isMatchNotNull(1)
125			? $lexerConditional->getStringMatch(1)
126			: null;
127			$operator = $lexerConditional->isMatchNotNull(2)
128			? $lexerConditional->getStringMatch(2)
129			: null;
130			$right = $lexerConditional->isMatchNotNull(3)
131			? $lexerConditional->getStringMatch(3)
132			: null;
133
134			array_push($conditions, [
135			'left' => $left,
136			'operator' => $operator,
137			'right' => $right,
138			]);
139			} else {
140			throw new ParseException(sprintf(
141			'Syntax Error in "%s" - Valid syntax: if [conditions]',
142			'if'
143			));
144			}
145			}
146
147			if (count($operators) > 0) {
148			// If statement contains and/or
149			$display = $this->evaluateCondition(
150			$conditions[0]['left'],
151			$conditions[0]['right'],
152			$conditions[0]['operator'],
153			$context
154			);
155
156			foreach ($operators as $key => $operator) {
157			if ($operator === 'and') {
158			$display = (
159			$display
160			&& $this->evaluateCondition(
161			$conditions[$key + 1]['left'],
162			$conditions[$key + 1]['right'],
163			$conditions[$key + 1]['operator'],
164			$context
165			)
166			);
167			} else {
168			$display = (
169			$display
170			\|\| $this->evaluateCondition(
171			$conditions[$key + 1]['left'],
172			$conditions[$key + 1]['right'],
173			$conditions[$key + 1]['operator'],
174			$context
175			)
176			);
177			}
178			}
179			} else {
180			// If statement is a single condition
181			$display = $this->evaluateCondition(
182			$conditions[0]['left'],
183			$conditions[0]['right'],
184			$conditions[0]['operator'],
185			$context
186			);
187			}
188
189			// hook for if not tag
190			$display = $this->negateCondition($display);
191
192			if ($display) {
193			$result = $this->renderAll($block[2], $context);
194
195			break;
196			}
197			}
198			}
199
200			$context->pop();
201
202			return $result;
203			}
204
205			/**
206			* Handler negate condition
207			* @param mixed $value
208			* @return mixed
209			*/
210			protected function negateCondition(mixed $value): mixed
211			{
212			// no need to negate a condition in a regular `if`
213			// tag (will do that in `ifnot` tag)
214
215			return $value;
216			}
217
218			/**
219			* {@inheritdoc}
220			*/
221			protected function unknownTag(string $tag, string $param, array $tokens): void
222			{
223			if ($tag === 'else' \|\| $tag === 'elseif') {
224			// Update reference to node list holder for this block
225			$this->nodeListHolders[count($this->blocks) + 1] = [];
226			$this->nodeList = & $this->nodeListHolders[count($this->blocks) + 1];
227			array_push($this->blocks, [$tag, $param, &$this->nodeList]);
228			} else {
229			parent::unknownTag($tag, $param, $tokens);
230			}
231			}
232			}
233

platine-php / template

IfTag::render() C last analyzed 2025-06-24 10:25 UTC

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IfTag::render() C
last analyzed 2025-06-24 10:25 UTC