BladeXCompiler::getAttributesFromAttributeString() - Code Metrics - Inspection of "Fix component compilation for edge cases (#45)" - spatie/laravel-blade-x - Measure and Improve Code Quality continuously with Scrutinizer

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created 2018-10-07 08:52 UTC

BladeXCompiler::getAttributesFromAttributeString() A

↳ Parent: BladeXCompiler

Complexity

Conditions	5
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	33
rs	9.0808
c	0
b	0
f	0
cc	5
nc	2
nop	1

<?php

namespace Spatie\BladeX;

class BladeXCompiler
{
    /** @var \Spatie\BladeX\BladeX */
    protected $bladeX;

    public function __construct(BladeX $bladeX)
    {
        return $this->bladeX = $bladeX;

    }

    public function compile(string $viewContents): string
    {
        return array_reduce(
            $this->bladeX->getRegisteredComponents(),
            [$this, 'parseComponentHtml'],
            $viewContents
        );
    }

    protected function parseComponentHtml(string $viewContents, BladeXComponent $bladeXComponent)
    {
        $viewContents = $this->parseSlots($viewContents);

        $viewContents = $this->parseSelfClosingTags($viewContents, $bladeXComponent);

        $viewContents = $this->parseOpeningTags($viewContents, $bladeXComponent);

        $viewContents = $this->parseClosingTags($viewContents, $bladeXComponent);

        return $viewContents;
    }

    protected function parseSelfClosingTags(string $viewContents, BladeXComponent $bladeXComponent): string
    {
        $prefix = $this->bladeX->getPrefix();

        $pattern = "/<\s*{$prefix}{$bladeXComponent->name}\s*(.*)\s*\/>/m";

        return preg_replace_callback($pattern, function (array $regexResult) use ($bladeXComponent) {
            [$componentHtml, $attributesString] = $regexResult;


            $attributes = $this->getAttributesFromAttributeString($attributesString);

            return $this->componentString($bladeXComponent, $attributes);
        }, $viewContents);
    }

    protected function parseOpeningTags(string $viewContents, BladeXComponent $bladeXComponent): string
    {
        $prefix = $this->bladeX->getPrefix();

        $pattern = "/<\s*{$prefix}{$bladeXComponent->name}((?:\s+[\w\-:]*=(?:\\\"(?:.*?)\\\"|\'(?:.*)\'|[^\'\\\"=<>]*))*\s*)(?<![\/=\-])>/m";

        return preg_replace_callback($pattern, function (array $regexResult) use ($bladeXComponent) {
            [$componentHtml, $attributesString] = $regexResult;


            $attributes = $this->getAttributesFromAttributeString($attributesString);

            return $this->componentStartString($bladeXComponent, $attributes);
        }, $viewContents);
    }

    protected function parseClosingTags(string $viewContents, BladeXComponent $bladeXComponent): string
    {
        $prefix = $this->bladeX->getPrefix();

        $pattern = "/<\/\s*{$prefix}{$bladeXComponent->name}[^>]*>/m";

        return preg_replace($pattern, $this->componentEndString($bladeXComponent), $viewContents);
    }

    protected function componentString(BladeXComponent $bladeXComponent, array $attributes = []): string
    {
        return $this->componentStartString($bladeXComponent, $attributes).$this->componentEndString($bladeXComponent);
    }

    protected function componentStartString(BladeXComponent $bladeXComponent, array $attributes = []): string
    {
        $attributesString = $this->attributesToString($attributes);

        $componentAttributeString = "[{$attributesString}]";

        if ($bladeXComponent->bladeViewName === 'bladex::context') {
            return "@php(app(Spatie\BladeX\ContextStack::class)->push({$componentAttributeString}))";
        }

        if ($bladeXComponent->viewModel) {
            $componentAttributeString = "
                array_merge(
                    app(Spatie\BladeX\ContextStack::class)->read(),
                    {$componentAttributeString},
                    app(
                        '{$bladeXComponent->viewModel}',
                        array_merge(
                            app(Spatie\BladeX\ContextStack::class)->read(),
                            {$componentAttributeString}
                        )
                    )->toArray()
                )";
        }

        return " @component(
           '{$bladeXComponent->bladeViewName}',
           array_merge(app(Spatie\BladeX\ContextStack::class)->read(), {$componentAttributeString})) ";
    }

    protected function componentEndString(BladeXComponent $bladeXComponent): string
    {
        if ($bladeXComponent->bladeViewName === 'bladex::context') {
            return "@php(app(Spatie\BladeX\ContextStack::class)->pop())";
        }

        return ' @endcomponent ';
    }

    protected function getAttributesFromAttributeString(string $attributeString): array
    {
        $attributeString = $this->parseBindAttributes($attributeString);

        $pattern = '/(?<attribute>[\w:-]+)(=(?<value>(\"[^\"]+\"|\\\'[^\\\']+\\\'|[^\s>]+)))?/';

        if (! preg_match_all($pattern, $attributeString, $matches, PREG_SET_ORDER)) {
            return [];
        }

        return collect($matches)->mapWithKeys(function ($match) {
            $attribute = camel_case($match['attribute']);
            $value = $match['value'] ?? null;

            if (is_null($value)) {
                $value = 'true';
                $attribute = str_start($attribute, 'bind:');
            }

            $value = $this->stripQuotes($value);

            if (! starts_with($attribute, 'bind:')) {
                $value = str_replace("'", "\\'", $value);
                $value = "'{$value}'";
            }

            if (starts_with($attribute, 'bind:')) {
                $attribute = str_after($attribute, 'bind:');
            }

            return [$attribute => $value];
        })->toArray();
    }

    protected function parseSlots(string $viewContents): string
    {
        $openingPattern = '/<\s*slot\s+name=(?<name>(\"[^\"]+\"|\\\'[^\\\']+\\\'|[^\s>]+))\s*>/';
        $viewContents = preg_replace_callback($openingPattern, function ($matches) {
            $name = $this->stripQuotes($matches['name']);

            return " @slot('{$name}') ";
        }, $viewContents);

        $closingPattern = '/<\/\s*slot[^>]*>/';
        $viewContents = preg_replace($closingPattern, ' @endslot', $viewContents);

        return $viewContents;
    }

    protected function isOpeningHtmlTag(string $tagName, string $html): bool
    {
        return ! ends_with($html, ["</{$tagName}>", '/>']);
    }

    protected function parseBindAttributes(string $attributeString): string
    {
        return preg_replace("/\s*:([\w-]+)=/m", ' bind:$1=', $attributeString);
    }

    protected function attributesToString(array $attributes): string
    {
        return collect($attributes)
            ->map(function (string $value, string $attribute) {
                return "'{$attribute}' => {$value}";
            })
            ->implode(',');
    }

    protected function stripQuotes(string $string): string
    {
        if (starts_with($string, ['"', '\''])) {
            return substr($string, 1, -1);
        }

        return $string;
    }
}


1			<?php
2
3			namespace Spatie\BladeX;
4
5			class BladeXCompiler
6			{
7			/** @var \Spatie\BladeX\BladeX */
8			protected $bladeX;
9
10			public function __construct(BladeX $bladeX)
11			{
12			return $this->bladeX = $bladeX;
			0 ignored issues – show Bug introduced 2018-09-28 20:26 UTC by Report Bug Copy Issue Report Constructors do not have meaningful return values, anything that is returned from here is discarded. Are you sure this is correct? Loading history...
13			}
14
15			public function compile(string $viewContents): string
16			{
17			return array_reduce(
18			$this->bladeX->getRegisteredComponents(),
19			[$this, 'parseComponentHtml'],
20			$viewContents
21			);
22			}
23
24			protected function parseComponentHtml(string $viewContents, BladeXComponent $bladeXComponent)
25			{
26			$viewContents = $this->parseSlots($viewContents);
27
28			$viewContents = $this->parseSelfClosingTags($viewContents, $bladeXComponent);
29
30			$viewContents = $this->parseOpeningTags($viewContents, $bladeXComponent);
31
32			$viewContents = $this->parseClosingTags($viewContents, $bladeXComponent);
33
34			return $viewContents;
35			}
36
37			protected function parseSelfClosingTags(string $viewContents, BladeXComponent $bladeXComponent): string
38			{
39			$prefix = $this->bladeX->getPrefix();
40
41			$pattern = "/<\s{$prefix}{$bladeXComponent->name}\s(.)\s\/>/m";
42
43			return preg_replace_callback($pattern, function (array $regexResult) use ($bladeXComponent) {
44			[$componentHtml, $attributesString] = $regexResult;
			0 ignored issues – show Bug introduced 2018-10-02 12:27 UTC by Report Bug Copy Issue Report The variable `$componentHtml` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history... Bug introduced 2018-10-02 12:27 UTC by Report Bug Copy Issue Report The variable `$attributesString` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history...
45
46			$attributes = $this->getAttributesFromAttributeString($attributesString);
47
48			return $this->componentString($bladeXComponent, $attributes);
49			}, $viewContents);
50			}
51
52			protected function parseOpeningTags(string $viewContents, BladeXComponent $bladeXComponent): string
53			{
54			$prefix = $this->bladeX->getPrefix();
55
56			$pattern = "/<\s{$prefix}{$bladeXComponent->name}((?:\s+[\w\-:]=(?:\\\"(?:.?)\\\"\|\'(?:.)\'\|[^\'\\\"=<>]))\s*)(?<![\/=\-])>/m";
57
58			return preg_replace_callback($pattern, function (array $regexResult) use ($bladeXComponent) {
59			[$componentHtml, $attributesString] = $regexResult;
			0 ignored issues – show Bug introduced 2018-10-02 12:27 UTC by Report Bug Copy Issue Report The variable `$componentHtml` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history... Bug introduced 2018-10-02 12:27 UTC by Report Bug Copy Issue Report The variable `$attributesString` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history...
60
61			$attributes = $this->getAttributesFromAttributeString($attributesString);
62
63			return $this->componentStartString($bladeXComponent, $attributes);
64			}, $viewContents);
65			}
66
67			protected function parseClosingTags(string $viewContents, BladeXComponent $bladeXComponent): string
68			{
69			$prefix = $this->bladeX->getPrefix();
70
71			$pattern = "/<\/\s{$prefix}{$bladeXComponent->name}[^>]>/m";
72
73			return preg_replace($pattern, $this->componentEndString($bladeXComponent), $viewContents);
74			}
75
76			protected function componentString(BladeXComponent $bladeXComponent, array $attributes = []): string
77			{
78			return $this->componentStartString($bladeXComponent, $attributes).$this->componentEndString($bladeXComponent);
79			}
80
81			protected function componentStartString(BladeXComponent $bladeXComponent, array $attributes = []): string
82			{
83			$attributesString = $this->attributesToString($attributes);
84
85			$componentAttributeString = "[{$attributesString}]";
86
87			if ($bladeXComponent->bladeViewName === 'bladex::context') {
88			return "@php(app(Spatie\BladeX\ContextStack::class)->push({$componentAttributeString}))";
89			}
90
91			if ($bladeXComponent->viewModel) {
92			$componentAttributeString = "
93			array_merge(
94			app(Spatie\BladeX\ContextStack::class)->read(),
95			{$componentAttributeString},
96			app(
97			'{$bladeXComponent->viewModel}',
98			array_merge(
99			app(Spatie\BladeX\ContextStack::class)->read(),
100			{$componentAttributeString}
101			)
102			)->toArray()
103			)";
104			}
105
106			return " @component(
107			'{$bladeXComponent->bladeViewName}',
108			array_merge(app(Spatie\BladeX\ContextStack::class)->read(), {$componentAttributeString})) ";
109			}
110
111			protected function componentEndString(BladeXComponent $bladeXComponent): string
112			{
113			if ($bladeXComponent->bladeViewName === 'bladex::context') {
114			return "@php(app(Spatie\BladeX\ContextStack::class)->pop())";
115			}
116
117			return ' @endcomponent ';
118			}
119
120			protected function getAttributesFromAttributeString(string $attributeString): array
121			{
122			$attributeString = $this->parseBindAttributes($attributeString);
123
124			$pattern = '/(?<attribute>[\w:-]+)(=(?<value>(\"[^\"]+\"\|\\\'[^\\\']+\\\'\|[^\s>]+)))?/';
125
126			if (! preg_match_all($pattern, $attributeString, $matches, PREG_SET_ORDER)) {
127			return [];
128			}
129
130			return collect($matches)->mapWithKeys(function ($match) {
131			$attribute = camel_case($match['attribute']);
132			$value = $match['value'] ?? null;
133
134			if (is_null($value)) {
135			$value = 'true';
136			$attribute = str_start($attribute, 'bind:');
137			}
138
139			$value = $this->stripQuotes($value);
140
141			if (! starts_with($attribute, 'bind:')) {
142			$value = str_replace("'", "\\'", $value);
143			$value = "'{$value}'";
144			}
145
146			if (starts_with($attribute, 'bind:')) {
147			$attribute = str_after($attribute, 'bind:');
148			}
149
150			return [$attribute => $value];
151			})->toArray();
152			}
153
154			protected function parseSlots(string $viewContents): string
155			{
156			$openingPattern = '/<\sslot\s+name=(?<name>(\"[^\"]+\"\|\\\'[^\\\']+\\\'\|[^\s>]+))\s>/';
157			$viewContents = preg_replace_callback($openingPattern, function ($matches) {
158			$name = $this->stripQuotes($matches['name']);
159
160			return " @slot('{$name}') ";
161			}, $viewContents);
162
163			$closingPattern = '/<\/\sslot[^>]>/';
164			$viewContents = preg_replace($closingPattern, ' @endslot', $viewContents);
165
166			return $viewContents;
167			}
168
169			protected function isOpeningHtmlTag(string $tagName, string $html): bool
170			{
171			return ! ends_with($html, ["</{$tagName}>", '/>']);
172			}
173
174			protected function parseBindAttributes(string $attributeString): string
175			{
176			return preg_replace("/\s*:([\w-]+)=/m", ' bind:$1=', $attributeString);
177			}
178
179			protected function attributesToString(array $attributes): string
180			{
181			return collect($attributes)
182			->map(function (string $value, string $attribute) {
183			return "'{$attribute}' => {$value}";
184			})
185			->implode(',');
186			}
187
188			protected function stripQuotes(string $string): string
189			{
190			if (starts_with($string, ['"', '\''])) {
191			return substr($string, 1, -1);
192			}
193
194			return $string;
195			}
196			}
197

spatie / laravel-blade-x

Push — master ( 28994a...370eae )

BladeXCompiler::getAttributesFromAttributeString() A

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