|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Drupal\graphql\Utility; |
|
4
|
|
|
|
|
5
|
|
|
class StringHelper { |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* Turn a list of machine names into a camel-cased string. |
|
9
|
|
|
* |
|
10
|
|
|
* @return string |
|
11
|
|
|
* A camel-cased concatenation of the input components. |
|
12
|
|
|
* |
|
13
|
|
|
* @throws \InvalidArgumentException |
|
14
|
|
|
* If the provided input does can't be converted to a specification compliant |
|
15
|
|
|
* string representation for field or type names. |
|
16
|
|
|
*/ |
|
17
|
|
|
public static function camelCase() { |
|
18
|
|
|
$components = func_get_args(); |
|
19
|
|
|
$string = is_array($components) ? implode('_', $components) : $components; |
|
20
|
|
|
$filtered = preg_replace('/^[^_a-zA-Z]+/', '', $string); |
|
21
|
|
|
$components = array_filter(preg_split('/[^a-zA-Z0-9]/', $filtered)); |
|
22
|
|
|
|
|
23
|
|
|
if (!count($components)) { |
|
24
|
|
|
throw new \InvalidArgumentException(sprintf("Failed to create a specification compliant string representation for '%s'.", $string)); |
|
25
|
|
|
} |
|
26
|
|
|
|
|
27
|
|
|
return implode('', array_map('ucfirst', $components)); |
|
28
|
|
|
} |
|
29
|
|
|
|
|
30
|
|
|
/** |
|
31
|
|
|
* Turn a list of machine names into a property-cased string. |
|
32
|
|
|
* |
|
33
|
|
|
* @return string |
|
34
|
|
|
* A camel-cased concatenation of the input components. |
|
35
|
|
|
*/ |
|
36
|
|
|
public static function propCase() { |
|
37
|
|
|
$result = call_user_func_array([static::class, 'camelCase'], func_get_args()); |
|
38
|
|
|
return ctype_upper($result) ? strtolower($result) : lcfirst($result); |
|
39
|
|
|
} |
|
40
|
|
|
|
|
41
|
|
|
/** |
|
42
|
|
|
* Wraps a type string in brackets declaring it as a list. |
|
43
|
|
|
* |
|
44
|
|
|
* @param string $type |
|
45
|
|
|
* The type to declare as a list. |
|
46
|
|
|
* |
|
47
|
|
|
* @return string |
|
48
|
|
|
* The decorated type string. |
|
49
|
|
|
*/ |
|
50
|
|
|
public static function listType($type) { |
|
51
|
|
|
return "[$type]"; |
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
/** |
|
55
|
|
|
* Appends an exclamation mark to a type string declaring it as non-null. |
|
56
|
|
|
* |
|
57
|
|
|
* @param string $type |
|
58
|
|
|
* The type to declare as non-null. |
|
59
|
|
|
* |
|
60
|
|
|
* @return string |
|
61
|
|
|
* The decorated type string. |
|
62
|
|
|
*/ |
|
63
|
|
|
public static function nonNullType($type) { |
|
64
|
|
|
return "$type!"; |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
|
|
} |
drupal-graphql /
graphql
