isLineTerminator() - Code Metrics - Inspection of "Lexer unit tests" - digiaonline/graphql-php - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#184)

by Christoffer

created 2018-04-07 23:00 UTC

isLineTerminator() A

↳ Parent: Project

Complexity

Conditions	2
Paths	2

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

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

<?php

namespace Digia\GraphQL\Language;

/**
 * @param int $code
 * @return string
 */
function chrUTF8(int $code)
{
    if ($code <= 255) {
        return \chr($code);
    }

    return \mb_convert_encoding(\pack('N', $code), 'UTF-8', 'UCS-4BE');
}

/**
 * @param string $string
 * @param string $encoding
 * @return int
 */
function ordUTF8(string $string)
{
    if (!$string && '0' !== $string) {
        return 0;
    }

    if (!isset($string[1])) {
        return \ord($string);
    }

    return \unpack('N', \mb_convert_encoding($string, 'UCS-4BE', 'UTF-8'))[1];
}

/**
 * @param string $string
 * @param int    $position
 * @return int
 */
function charCodeAt(string $string, int $position): int
{
    return ordUTF8(\mb_substr($string, $position, 1, 'UTF-8'));
}

/**
 * @param int $code
 * @return string
 */
function printCharCode(int $code): string
{
    if ($code === 0x0000) {
        return '<EOF>';
    }

    return $code < 0x007F
        // Trust JSON for ASCII.
        ? \json_encode($code < 255 ? \chr($code) : chrUTF8($code))
        // Otherwise print the escaped form.
        : '"\\u' . \dechex($code) . '"';
}

/**
 * @param string   $string
 * @param int      $start
 * @param int|null $end
 * @return string
 */
function sliceString(string $string, int $start, int $end = null): string
{
    $length = $end !== null ? $end - $start : \mb_strlen($string) - $start;
    return \mb_substr($string, $start, $length);
}

/**
 * @param int $code
 * @return bool
 */
function isLetter(int $code): bool
{
    return ($code >= 65 && $code <= 90) || ($code >= 97 && $code <= 122); // a-z or A-Z
}

/**
 * @param int $code
 * @return bool
 */
function isNumber(int $code): bool
{
    return $code >= 48 && $code <= 57; // 0-9
}

/**
 * @param int $code
 * @return bool
 */
function isUnderscore(int $code): bool
{
    return $code === 95; // _
}

/**
 * @param int $code
 * @return bool
 */
function isAlphaNumeric(int $code): bool
{
    return isLetter($code) || isNumber($code) || isUnderscore($code);
}

/**
 * @param int $code
 * @return bool
 */
function isLineTerminator(int $code): bool
{
    return $code === 0x000a || $code === 0x000d;
}

/**
 * @param int $code
 * @return bool
 */
function isSourceCharacter(int $code): bool
{
    return $code < 0x0020 && $code !== 0x0009; // any source character EXCEPT HT (Horizontal Tab)
}

/**
 * @param string $body
 * @param int    $code
 * @param int    $pos
 * @return bool
 */
function isSpread(string $body, int $code, int $pos): bool
{
    return $code === 46 &&
        charCodeAt($body, $pos + 1) === 46 &&
        charCodeAt($body, $pos + 2) === 46; // ...
}

/**
 * @param string $body
 * @param int    $code
 * @param int    $pos
 * @return bool
 */
function isString(string $body, int $code, int $pos): bool
{
    return $code === 34 && charCodeAt($body, $pos + 1) !== 34;
}

/**
 * @param string $body
 * @param int    $code
 * @param int    $pos
 * @return bool
 */
function isTripleQuote(string $body, int $code, int $pos): bool
{
    return $code === 34 &&
        charCodeAt($body, $pos + 1) === 34 &&
        charCodeAt($body, $pos + 2) === 34; // """
}

/**
 * @param string $body
 * @param int    $code
 * @param int    $pos
 * @return bool
 */
function isEscapedTripleQuote(
    string $body,
    int $code,
    int $pos
): bool {
    return $code === 92 &&
        charCodeAt($body, $pos + 1) === 34 &&
        charCodeAt($body, $pos + 2) === 34 &&
        charCodeAt($body, $pos + 3) === 34;
}

/**
 * Converts four hexidecimal chars to the integer that the
 * string represents. For example, uniCharCode('0','0','0','f')
 * will return 15, and uniCharCode('0','0','f','f') returns 255.
 *
 * @param string $a
 * @param string $b
 * @param string $c
 * @param string $d
 * @return string
 */
function uniCharCode(string $a, string $b, string $c, string $d): string
{
    return (\dechex(ordUTF8($a)) << 12) |
        (\dechex(ordUTF8($b)) << 8) |
        (\dechex(ordUTF8($c)) << 4) |
        \dechex(ordUTF8($d));
}

/**
 * @param string $value
 * @return bool
 */
function isOperation(string $value): bool
{
    // TODO: Benchmark
    return \in_array($value, ['query', 'mutation', 'subscription'], true);
}

/**
 * @param array $location
 * @return array|null
 */
function locationShorthandToArray(array $location): ?array
{
    return isset($location[0], $location[1]) ? ['line' => $location[0], 'column' => $location[1]] : null;
}

/**
 * @param array $locations
 * @return array
 */
function locationsShorthandToArray(array $locations): array
{
    return array_map(function ($shorthand) {
        return locationShorthandToArray($shorthand);
    }, $locations);
}

/**
 * @param array $array
 * @return string
 */
function block(array $array): string
{
    return !empty($array) ? "{\n" . indent(implode("\n", $array)) . "\n}" : '';
}

/**
 * @param string      $start
 * @param null|string $maybeString
 * @param null|string $end
 * @return string
 */
function wrap(string $start, ?string $maybeString = null, ?string $end = null): string
{
    return null !== $maybeString ? ($start . $maybeString . ($end ?? '')) : '';
}

/**
 * @param null|string $maybeString
 * @return string
 */
function indent(?string $maybeString): string
{
    return null !== $maybeString ? '  ' . preg_replace("/\n/", "\n  ", $maybeString) : '';
}

/**
 * @param string $str
 * @return string
 */
function dedent(string $str): string
{
    $trimmed = \preg_replace("/^\n*|[ \t]*$/", '', $str); // Remove leading newline and trailing whitespace
    $matches = [];
    \preg_match("/^[ \t]*/", $trimmed, $matches); // Figure out indent
    $indent = $matches[0];
    return \str_replace($indent, '', $trimmed); // Remove indent
}


1			<?php
2
3			namespace Digia\GraphQL\Language;
4
5			/**
6			* @param int $code
7			* @return string
8			*/
9			function chrUTF8(int $code)
10			{
11			if ($code <= 255) {
12			return \chr($code);
13			}
14
15			return \mb_convert_encoding(\pack('N', $code), 'UTF-8', 'UCS-4BE');
16			}
17
18			/**
19			* @param string $string
20			* @param string $encoding
21			* @return int
22			*/
23			function ordUTF8(string $string)
24			{
25			if (!$string && '0' !== $string) {
26			return 0;
27			}
28
29			if (!isset($string[1])) {
30			return \ord($string);
31			}
32
33			return \unpack('N', \mb_convert_encoding($string, 'UCS-4BE', 'UTF-8'))[1];
34			}
35
36			/**
37			* @param string $string
38			* @param int $position
39			* @return int
40			*/
41			function charCodeAt(string $string, int $position): int
42			{
43			return ordUTF8(\mb_substr($string, $position, 1, 'UTF-8'));
44			}
45
46			/**
47			* @param int $code
48			* @return string
49			*/
50			function printCharCode(int $code): string
51			{
52			if ($code === 0x0000) {
53			return '<EOF>';
54			}
55
56			return $code < 0x007F
57			// Trust JSON for ASCII.
58			? \json_encode($code < 255 ? \chr($code) : chrUTF8($code))
59			// Otherwise print the escaped form.
60			: '"\\u' . \dechex($code) . '"';
61			}
62
63			/**
64			* @param string $string
65			* @param int $start
66			* @param int\|null $end
67			* @return string
68			*/
69			function sliceString(string $string, int $start, int $end = null): string
70			{
71			$length = $end !== null ? $end - $start : \mb_strlen($string) - $start;
72			return \mb_substr($string, $start, $length);
73			}
74
75			/**
76			* @param int $code
77			* @return bool
78			*/
79			function isLetter(int $code): bool
80			{
81			return ($code >= 65 && $code <= 90) \|\| ($code >= 97 && $code <= 122); // a-z or A-Z
82			}
83
84			/**
85			* @param int $code
86			* @return bool
87			*/
88			function isNumber(int $code): bool
89			{
90			return $code >= 48 && $code <= 57; // 0-9
91			}
92
93			/**
94			* @param int $code
95			* @return bool
96			*/
97			function isUnderscore(int $code): bool
98			{
99			return $code === 95; // _
100			}
101
102			/**
103			* @param int $code
104			* @return bool
105			*/
106			function isAlphaNumeric(int $code): bool
107			{
108			return isLetter($code) \|\| isNumber($code) \|\| isUnderscore($code);
109			}
110
111			/**
112			* @param int $code
113			* @return bool
114			*/
115			function isLineTerminator(int $code): bool
116			{
117			return $code === 0x000a \|\| $code === 0x000d;
118			}
119
120			/**
121			* @param int $code
122			* @return bool
123			*/
124			function isSourceCharacter(int $code): bool
125			{
126			return $code < 0x0020 && $code !== 0x0009; // any source character EXCEPT HT (Horizontal Tab)
127			}
128
129			/**
130			* @param string $body
131			* @param int $code
132			* @param int $pos
133			* @return bool
134			*/
135			function isSpread(string $body, int $code, int $pos): bool
136			{
137			return $code === 46 &&
138			charCodeAt($body, $pos + 1) === 46 &&
139			charCodeAt($body, $pos + 2) === 46; // ...
140			}
141
142			/**
143			* @param string $body
144			* @param int $code
145			* @param int $pos
146			* @return bool
147			*/
148			function isString(string $body, int $code, int $pos): bool
149			{
150			return $code === 34 && charCodeAt($body, $pos + 1) !== 34;
151			}
152
153			/**
154			* @param string $body
155			* @param int $code
156			* @param int $pos
157			* @return bool
158			*/
159			function isTripleQuote(string $body, int $code, int $pos): bool
160			{
161			return $code === 34 &&
162			charCodeAt($body, $pos + 1) === 34 &&
163			charCodeAt($body, $pos + 2) === 34; // """
164			}
165
166			/**
167			* @param string $body
168			* @param int $code
169			* @param int $pos
170			* @return bool
171			*/
172			function isEscapedTripleQuote(
173			string $body,
174			int $code,
175			int $pos
176			): bool {
177			return $code === 92 &&
178			charCodeAt($body, $pos + 1) === 34 &&
179			charCodeAt($body, $pos + 2) === 34 &&
180			charCodeAt($body, $pos + 3) === 34;
181			}
182
183			/**
184			* Converts four hexidecimal chars to the integer that the
185			* string represents. For example, uniCharCode('0','0','0','f')
186			* will return 15, and uniCharCode('0','0','f','f') returns 255.
187			*
188			* @param string $a
189			* @param string $b
190			* @param string $c
191			* @param string $d
192			* @return string
193			*/
194			function uniCharCode(string $a, string $b, string $c, string $d): string
195			{
196			return (\dechex(ordUTF8($a)) << 12) \|
197			(\dechex(ordUTF8($b)) << 8) \|
198			(\dechex(ordUTF8($c)) << 4) \|
199			\dechex(ordUTF8($d));
200			}
201
202			/**
203			* @param string $value
204			* @return bool
205			*/
206			function isOperation(string $value): bool
207			{
208			// TODO: Benchmark
209			return \in_array($value, ['query', 'mutation', 'subscription'], true);
210			}
211
212			/**
213			* @param array $location
214			* @return array\|null
215			*/
216			function locationShorthandToArray(array $location): ?array
217			{
218			return isset($location[0], $location[1]) ? ['line' => $location[0], 'column' => $location[1]] : null;
219			}
220
221			/**
222			* @param array $locations
223			* @return array
224			*/
225			function locationsShorthandToArray(array $locations): array
226			{
227			return array_map(function ($shorthand) {
228			return locationShorthandToArray($shorthand);
229			}, $locations);
230			}
231
232			/**
233			* @param array $array
234			* @return string
235			*/
236			function block(array $array): string
237			{
238			return !empty($array) ? "{\n" . indent(implode("\n", $array)) . "\n}" : '';
239			}
240
241			/**
242			* @param string $start
243			* @param null\|string $maybeString
244			* @param null\|string $end
245			* @return string
246			*/
247			function wrap(string $start, ?string $maybeString = null, ?string $end = null): string
248			{
249			return null !== $maybeString ? ($start . $maybeString . ($end ?? '')) : '';
250			}
251
252			/**
253			* @param null\|string $maybeString
254			* @return string
255			*/
256			function indent(?string $maybeString): string
257			{
258			return null !== $maybeString ? ' ' . preg_replace("/\n/", "\n ", $maybeString) : '';
259			}
260
261			/**
262			* @param string $str
263			* @return string
264			*/
265			function dedent(string $str): string
266			{
267			$trimmed = \preg_replace("/^\n\|[ \t]$/", '', $str); // Remove leading newline and trailing whitespace
268			$matches = [];
269			\preg_match("/^[ \t]*/", $trimmed, $matches); // Figure out indent
270			$indent = $matches[0];
271			return \str_replace($indent, '', $trimmed); // Remove indent
272			}
273

digiaonline / graphql-php

Pull Request — master (#184)

isLineTerminator() A

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