Lexeme::lexer() - Code Metrics - Inspection of "update" - bavix/flow - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( bd9914...f23768 )

by Бабичев

created 2017-12-22 06:53 UTC

Lexeme::lexer() A

↳ Parent: Lexeme

Complexity

Conditions	2
Paths	2

Size

Total Lines	8
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	8
ccs	4
cts	4
cp	1
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	3
nc	2
nop	0
crap	2

<?php

namespace Bavix\Flow;

use Bavix\Helpers\Arr;
use Bavix\Lexer\Lexer;
use Bavix\SDK\FileLoader;

/**
 * Class Lexeme
 *
 * @package Bavix\Flow
 */
class Lexeme
{

    /**
     * @var array
     */
    protected $types;

    /**
     * @var array
     */
    protected $default = [
        'types' => [
            'variable'
        ]
    ];

    /**
     * @var array
     */
    protected $props = [];

    /**
     * @var array
     */
    protected $data = [];

    /**
     * @var array
     */
    protected $closed = [];

    /**
     * @var array
     */
    protected $items = [];

    /**
     * @var string[]
     */
    protected $folders = [];

    /**
     * @var Lexer
     */
    protected $lexer;

    /**
     * @var Flow
     */
    protected $flow;

    /**
     * Lexeme constructor.
     *
     * @param Flow $flow
     */
    public function __construct(Flow $flow)
    {
        $this->types = Property::get('types');
        $this->addFolder(\dirname(__DIR__, 2) . '/lexemes');
        $this->flow = $flow;
    }

    /**
     * @param string $path
     *
     * @return self
     */
    public function addFolder(string $path): self
    {
        Arr::unShift($this->folders, $path);

        return $this;
    }

    /**
     * @return Lexer
     */
    protected function lexer(): Lexer
    {
        if (!$this->lexer)
        {
            $this->lexer = new Lexer();
        }

        return $this->lexer;
    }

    /**
     * @param $file
     *
     * @return FileLoader\DataInterface|null
     */
    protected function loader($file)
    {
        foreach ($this->folders as $folder)
        {
            foreach (FileLoader::extensions() as $ext)
            {
                try
                {
                    return FileLoader::load($folder . '/' . $file . '.' . $ext);
                }
                catch (\Throwable $throwable)
                {
                    // skip...
                }
            }
        }

        return null;
    }

    /**
     * @param array  $props
     * @param string $key
     *
     * @return array
     */
    public function property(array $props, string $key): array
    {
        $self = $this;
        $prop = &$props[$key];

        if (empty($this->props[$key]))
        {
            if (isset($prop['extends']))
            {
                $extends = Arr::map((array)$prop['extends'], function ($extend) use ($self, &$props) {
                    return $self->property($props, $extend);
                });

                $prop = \array_merge_recursive(
                    $prop,
                    ...$extends
                );
            }

            $this->props[$key] = $prop;
        }

        return $this->props[$key];
    }

    /**
     * @param array $props
     *
     * @return array
     */
    protected function properties(array $props): array
    {
        foreach ($props as $key => $prop)
        {
            $this->property($props, $key);
        }

        return $this->props;
    }

    /**
     * @param array $types
     *
     * @return array
     */
    protected function types(array $types): array
    {
        $results = [];
        foreach ($types as $type)
        {
            $results[] = $this->types[$type];
        }

        return $results;
    }

    /**
     * @param string $key
     *
     * @return string
     */
    protected function fragment(string $key): string
    {
        $property = $this->props[$key] ?? $this->default;

        return '(?<' . $key . '>(' .
            implode('|', $this->types($property['types'])) .
            '))';
    }

    /**
     * @param string $key
     * @param array  $syntax
     *
     * @return array
     */
    public function syntax2Array(string $key, array $syntax): array
    {
        $props  = $this->props[$key] ?? null;
        $closed = $this->closed[$key] ?? false;

        return Cache::get(__CLASS__ . $key, function () use ($syntax, $props, $closed) {
            return [
                'syntax' => $syntax,
                'props'  => $props,
                'closed' => $closed,
            ];
        });
    }

    protected function tryLoad(string $key)
    {
        if (empty($this->data[$key]))
        {
            $item = Cache::getItem(__CLASS__ . $key);

            if ($item && $item->isHit())
            {
                $_cache = $item->get();

                $this->data[$key]   = $_cache['syntax'];
                $this->props[$key]  = $_cache['props'];
                $this->closed[$key] = $_cache['closed'];

                return $this->data[$key];
            }
        }

        return null;
    }

    /**
     * @param string $key
     * @param array  $data
     *
     * @return array|mixed
     */
    protected function getLexemes(string $key, array $data)
    {
        $syntax = $this->tryLoad($key);

        if (empty($this->data[$key]))
        {
            $syntax = $this->syntax($key, $data);
            $this->syntax2Array($key, $syntax);
        }

        return $syntax;
    }

    /**
     * @param string $key
     * @param array  $data
     *
     * @return array
     */
    protected function syntax(string $key, array $data)
    {
        foreach ($data['directives'] ?? [] as $_key => $directive)
        {
            $this->data($_key, $directive ?: []);
        }

        $this->closed[$key] = $data['closed'] ?? false;
        $this->properties($data['properties'] ?? []);

        $syntax = [];

        foreach ($data['syntax'] ?? [] as $text)
        {
            $tokens = $this->lexer()->tokens($text);
            $vars   = $tokens[Lexer::PRINTER] ?? [];
            $code   = \str_replace(
                ['\\(', '\\)', ','],
                ['\\( ', ' \\)', ' ,'],
                $text
            );

            foreach ($vars as $var)
            {
                $code = \str_replace(
                    $var['code'],
                    $this->fragment($var['fragment']),
                    $code
                );
            }

            $syntax[] = [
                'vars'   => $vars,
                'regexp' => '~^' . $key . ' ' . $code . '$~ui'
            ];
        }

        return $syntax;
    }

    /**
     * @param string     $key
     * @param array|null $data
     *
     * @return array|bool|mixed
     */
    protected function get(string $key, array $data = null)
    {
        /**
         * @var $loader mixed
         */
        $loader = $this->loader($key) ?: $data;

        if (null === $loader)
        {
            return true;
        }

        $mixed = [];

        if ($loader)
        {
            $mixed = $loader;

            if (\is_object($mixed))
            {
                $mixed = $loader->asArray();
            }
        }

        return $this->getLexemes($key, $mixed);
    }

    /**
     * @param string $key
     *
     * @return bool
     */
    public function closed(string $key): bool
    {
        $this->data($key);

        return $this->closed[$key] ?? false;
    }

    /**
     * @param string $key
     * @param array  $data
     *
     * @return array|bool
     */
    public function data(string $key, array $data = null)
    {
        $this->tryLoad($key);

        if (!\array_key_exists($key, $this->data))
        {
            $this->data[$key] = $this->get($key, $data);
        }

        return $this->data[$key];
    }

    /**
     * @param string $value
     *
     * @return array
     */
    public function lexerApply(string $value): array
    {
        $name = __FUNCTION__ . $value;
        $item = Cache::getItem($name);

        if ($item && $item->isHit())
        {
            return $item->get();
        }

        $value  = '{{ ' . $value . ' }}';
        $tokens = $this->flow->lexer()->tokens($value);
        $_lexer = \current($tokens[Lexer::PRINTER]);

        $store = [
            'lexer' => $_lexer,
            'code'  => $this->flow->build($_lexer)
        ];

        return Cache::get($name, function () use ($store) {
            return $store;
        });
    }

    /**
     * @param string $key
     * @param string $tpl
     *
     * @return array|null
     */
    public function apply(string $key, string $tpl)
    {
        $lexData = $this->data($key);
        $data    = null;

        if (true === $lexData)
        {
            return $data;
        }

        foreach ($lexData as $datum)
        {
            if (\preg_match($datum['regexp'], $tpl, $outs))
            {
                $data = Arr::filter($outs, function (...$args) {
                    return \is_string(\end($args));
                });

                $data = Arr::map($data, [$this, 'lexerApply']);
                break;
            }
        }

        return $data;
    }

}


1		<?php
2
3		namespace Bavix\Flow;
4
5		use Bavix\Helpers\Arr;
6		use Bavix\Lexer\Lexer;
7		use Bavix\SDK\FileLoader;
8
9		/**
10		* Class Lexeme
11		*
12		* @package Bavix\Flow
13		*/
14		class Lexeme
15		{
16
17		/**
18		* @var array
19		*/
20		protected $types;
21
22		/**
23		* @var array
24		*/
25		protected $default = [
26		'types' => [
27		'variable'
28		]
29		];
30
31		/**
32		* @var array
33		*/
34		protected $props = [];
35
36		/**
37		* @var array
38		*/
39		protected $data = [];
40
41		/**
42		* @var array
43		*/
44		protected $closed = [];
45
46		/**
47		* @var array
48		*/
49		protected $items = [];
50
51		/**
52		* @var string[]
53		*/
54		protected $folders = [];
55
56		/**
57		* @var Lexer
58		*/
59		protected $lexer;
60
61		/**
62		* @var Flow
63		*/
64		protected $flow;
65
66		/**
67		* Lexeme constructor.
68		*
69		* @param Flow $flow
70		*/
71	11	public function __construct(Flow $flow)
72		{
73	11	$this->types = Property::get('types');
74	11	$this->addFolder(\dirname(__DIR__, 2) . '/lexemes');
75	11	$this->flow = $flow;
76	11	}
77
78		/**
79		* @param string $path
80		*
81		* @return self
82		*/
83	11	public function addFolder(string $path): self
84		{
85	11	Arr::unShift($this->folders, $path);
86
87	11	return $this;
88		}
89
90		/**
91		* @return Lexer
92		*/
93	11	protected function lexer(): Lexer
94		{
95	11	if (!$this->lexer)
96		{
97	11	$this->lexer = new Lexer();
98		}
99
100	11	return $this->lexer;
101		}
102
103		/**
104		* @param $file
105		*
106		* @return FileLoader\DataInterface\|null
107		*/
108	11	protected function loader($file)
109		{
110	11	foreach ($this->folders as $folder)
111		{
112	11	foreach (FileLoader::extensions() as $ext)
113		{
114		try
115		{
116	11	return FileLoader::load($folder . '/' . $file . '.' . $ext);
117		}
118	11	catch (\Throwable $throwable)
119	11	{
120		// skip...
121		}
122		}
123		}
124
125	7	return null;
126		}
127
128		/**
129		* @param array $props
130		* @param string $key
131		*
132		* @return array
133		*/
134	10	public function property(array $props, string $key): array
135		{
136	10	$self = $this;
137	10	$prop = &$props[$key];
138
139	10	if (empty($this->props[$key]))
140		{
141	10	if (isset($prop['extends']))
142		{
143		$extends = Arr::map((array)$prop['extends'], function ($extend) use ($self, &$props) {
144		return $self->property($props, $extend);
145		});
146
147		$prop = \array_merge_recursive(
148		$prop,
149		...$extends
150		);
151		}
152
153	10	$this->props[$key] = $prop;
154		}
155
156	10	return $this->props[$key];
157		}
158
159		/**
160		* @param array $props
161		*
162		* @return array
163		*/
164	11	protected function properties(array $props): array
165		{
166	11	foreach ($props as $key => $prop)
167		{
168	10	$this->property($props, $key);
169		}
170
171	11	return $this->props;
172		}
173
174		/**
175		* @param array $types
176		*
177		* @return array
178		*/
179	11	protected function types(array $types): array
180		{
181	11	$results = [];
182	11	foreach ($types as $type)
183		{
184	11	$results[] = $this->types[$type];
185		}
186
187	11	return $results;
188		}
189
190		/**
191		* @param string $key
192		*
193		* @return string
194		*/
195	11	protected function fragment(string $key): string
196		{
197	11	$property = $this->props[$key] ?? $this->default;
198
199	11	return '(?<' . $key . '>(' .
200	11	implode('\|', $this->types($property['types'])) .
201	11	'))';
202		}
203
204		/**
205		* @param string $key
206		* @param array $syntax
207		*
208		* @return array
209		*/
210	11	public function syntax2Array(string $key, array $syntax): array
211		{
212	11	$props = $this->props[$key] ?? null;
213	11	$closed = $this->closed[$key] ?? false;
214
215	11	return Cache::get(__CLASS__ . $key, function () use ($syntax, $props, $closed) {
216		return [
217	11	'syntax' => $syntax,
218	11	'props' => $props,
219	11	'closed' => $closed,
220		];
221	11	});
222		}
223
224	11	protected function tryLoad(string $key)
225		{
226	11	if (empty($this->data[$key]))
227		{
228	11	$item = Cache::getItem(__CLASS__ . $key);
229
230	11	if ($item && $item->isHit())
231		{
232		$_cache = $item->get();
233
234		$this->data[$key] = $_cache['syntax'];
235		$this->props[$key] = $_cache['props'];
236		$this->closed[$key] = $_cache['closed'];
237
238		return $this->data[$key];
239		}
240		}
241
242	11	return null;
243		}
244
245		/**
246		* @param string $key
247		* @param array $data
248		*
249		* @return array\|mixed
250		*/
251	11	protected function getLexemes(string $key, array $data)
252		{
253	11	$syntax = $this->tryLoad($key);
254
255	11	if (empty($this->data[$key]))
256		{
257	11	$syntax = $this->syntax($key, $data);
258	11	$this->syntax2Array($key, $syntax);
259		}
260
261	11	return $syntax;
262		}
263
264		/**
265		* @param string $key
266		* @param array $data
267		*
268		* @return array
269		*/
270	11	protected function syntax(string $key, array $data)
271		{
272	11	foreach ($data['directives'] ?? [] as $_key => $directive)
273		{
274	6	$this->data($_key, $directive ?: []);
275		}
276
277	11	$this->closed[$key] = $data['closed'] ?? false;
278	11	$this->properties($data['properties'] ?? []);
279
280	11	$syntax = [];
281
282	11	foreach ($data['syntax'] ?? [] as $text)
283		{
284	11	$tokens = $this->lexer()->tokens($text);
285	11	$vars = $tokens[Lexer::PRINTER] ?? [];
286	11	$code = \str_replace(
287	11	['\\(', '\\)', ','],
288	11	['\\( ', ' \\)', ' ,'],
289	11	$text
290		);
291
292	11	foreach ($vars as $var)
293		{
294	11	$code = \str_replace(
295	11	$var['code'],
296	11	$this->fragment($var['fragment']),
297	11	$code
298		);
299		}
300
301	11	$syntax[] = [
302	11	'vars' => $vars,
303	11	'regexp' => '~^' . $key . ' ' . $code . '$~ui'
304		];
305		}
306
307	11	return $syntax;
308		}
309
310		/**
311		* @param string $key
312		* @param array\|null $data
313		*
314		* @return array\|bool\|mixed
315		*/
316	11	protected function get(string $key, array $data = null)
317		{
318		/**
319		* @var $loader mixed
320		*/
321	11	$loader = $this->loader($key) ?: $data;
322
323	11	if (null === $loader)
324		{
325	6	return true;
326		}
327
328	11	$mixed = [];
329
330	11	if ($loader)
331		{
332	11	$mixed = $loader;
333
334	11	if (\is_object($mixed))
335		{
336	11	$mixed = $loader->asArray();
337		}
338		}
339
340	11	return $this->getLexemes($key, $mixed);
341		}
342
343		/**
344		* @param string $key
345		*
346		* @return bool
347		*/
348	11	public function closed(string $key): bool
349		{
350	11	$this->data($key);
351
352	11	return $this->closed[$key] ?? false;
353		}
354
355		/**
356		* @param string $key
357		* @param array $data
358		*
359		* @return array\|bool
360		*/
361	11	public function data(string $key, array $data = null)
362		{
363	11	$this->tryLoad($key);
364
365	11	if (!\array_key_exists($key, $this->data))
366		{
367	11	$this->data[$key] = $this->get($key, $data);
368		}
369
370	11	return $this->data[$key];
371		}
372
373		/**
374		* @param string $value
375		*
376		* @return array
377		*/
378	11	public function lexerApply(string $value): array
379		{
380	11	$name = __FUNCTION__ . $value;
381	11	$item = Cache::getItem($name);
382
383	11	if ($item && $item->isHit())
384		{
385		return $item->get();
386		}
387
388	11	$value = '{{ ' . $value . ' }}';
389	11	$tokens = $this->flow->lexer()->tokens($value);
390	11	$_lexer = \current($tokens[Lexer::PRINTER]);
391
392		$store = [
393	11	'lexer' => $_lexer,
394	11	'code' => $this->flow->build($_lexer)
395		];
396
397	11	return Cache::get($name, function () use ($store) {
398	11	return $store;
399	11	});
400		}
401
402		/**
403		* @param string $key
404		* @param string $tpl
405		*
406		* @return array\|null
407		*/
408	11	public function apply(string $key, string $tpl)
409		{
410	11	$lexData = $this->data($key);
411	11	$data = null;
412
413	11	if (true === $lexData)
414		{
415		return $data;
416		}
417
418	11	foreach ($lexData as $datum)
419		{
420	11	if (\preg_match($datum['regexp'], $tpl, $outs))
421		{
422	11	$data = Arr::filter($outs, function (...$args) {
423	11	return \is_string(\end($args));
424	11	});
425
426	11	$data = Arr::map($data, [$this, 'lexerApply']);
427	11	break;
428		}
429		}
430
431	11	return $data;
432		}
433
434		}
435

bavix / flow

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Lexeme::lexer() A

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