| @@ 21-141 (lines=121) @@ | ||
| 18 | * |
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| 19 | * @license https://www.gnu.org/licenses/gpl-2.0.txt GPL-2.0+ |
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| 20 | */ |
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| 21 | class GroupKeyword extends Component |
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| 22 | { |
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| 23 | /** |
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| 24 | * The expression that is used for ordering. |
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| 25 | * |
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| 26 | * @var Expression |
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| 27 | */ |
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| 28 | public $expr; |
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| 29 | ||
| 30 | /** |
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| 31 | * The order type. |
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| 32 | * |
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| 33 | * @var string |
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| 34 | */ |
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| 35 | public $type; |
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| 36 | ||
| 37 | /** |
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| 38 | * Constructor. |
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| 39 | * |
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| 40 | * @param Expression $expr the expression that we are sorting by |
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| 41 | * @param string $type the sorting type |
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| 42 | */ |
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| 43 | public function __construct($expr = null, $type = '') |
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| 44 | { |
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| 45 | $this->expr = $expr; |
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| 46 | $this->type = $type; |
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| 47 | } |
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| 48 | ||
| 49 | /** |
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| 50 | * @param Parser $parser the parser that serves as context |
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| 51 | * @param TokensList $list the list of tokens that are being parsed |
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| 52 | * @param array $options parameters for parsing |
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| 53 | * |
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| 54 | * @return GroupKeyword[] |
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| 55 | */ |
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| 56 | public static function parse(Parser $parser, TokensList $list, array $options = array()) |
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| 57 | { |
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| 58 | $ret = array(); |
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| 59 | ||
| 60 | $expr = new self(); |
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| 61 | ||
| 62 | /** |
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| 63 | * The state of the parser. |
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| 64 | * |
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| 65 | * Below are the states of the parser. |
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| 66 | * |
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| 67 | * 0 --------------------[ expression ]-------------------> 1 |
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| 68 | * |
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| 69 | * 1 ------------------------[ , ]------------------------> 0 |
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| 70 | * 1 -------------------[ ASC / DESC ]--------------------> 1 |
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| 71 | * |
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| 72 | * @var int |
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| 73 | */ |
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| 74 | $state = 0; |
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| 75 | ||
| 76 | for (; $list->idx < $list->count; ++$list->idx) { |
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| 77 | /** |
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| 78 | * Token parsed at this moment. |
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| 79 | * |
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| 80 | * @var Token |
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| 81 | */ |
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| 82 | $token = $list->tokens[$list->idx]; |
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| 83 | ||
| 84 | // End of statement. |
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| 85 | if ($token->type === Token::TYPE_DELIMITER) { |
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| 86 | break; |
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| 87 | } |
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| 88 | ||
| 89 | // Skipping whitespaces and comments. |
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| 90 | if (($token->type === Token::TYPE_WHITESPACE) || ($token->type === Token::TYPE_COMMENT)) { |
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| 91 | continue; |
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| 92 | } |
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| 93 | ||
| 94 | if ($state === 0) { |
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| 95 | $expr->expr = Expression::parse($parser, $list); |
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| 96 | $state = 1; |
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| 97 | } elseif ($state === 1) { |
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| 98 | if (($token->type === Token::TYPE_KEYWORD) |
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| 99 | && (($token->keyword === 'ASC') || ($token->keyword === 'DESC')) |
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| 100 | ) { |
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| 101 | $expr->type = $token->keyword; |
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| 102 | } elseif (($token->type === Token::TYPE_OPERATOR) |
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| 103 | && ($token->value === ',') |
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| 104 | ) { |
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| 105 | if (!empty($expr->expr)) { |
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| 106 | $ret[] = $expr; |
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| 107 | } |
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| 108 | $expr = new self(); |
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| 109 | $state = 0; |
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| 110 | } else { |
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| 111 | break; |
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| 112 | } |
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| 113 | } |
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| 114 | } |
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| 115 | ||
| 116 | // Last iteration was not processed. |
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| 117 | if (!empty($expr->expr)) { |
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| 118 | $ret[] = $expr; |
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| 119 | } |
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| 120 | ||
| 121 | --$list->idx; |
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| 122 | ||
| 123 | return $ret; |
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| 124 | } |
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| 125 | ||
| 126 | /** |
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| 127 | * @param GroupKeyword|GroupKeyword[] $component the component to be built |
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| 128 | * @param array $options parameters for building |
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| 129 | * |
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| 130 | * @return string |
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| 131 | */ |
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| 132 | public static function build($component, array $options = array()) |
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| 133 | { |
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| 134 | if (is_array($component)) { |
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| 135 | return implode(', ', $component); |
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| 136 | } |
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| 137 | ||
| 138 | return trim($component->expr . ' ' . $component->type); |
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| 139 | ||
| 140 | } |
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| 141 | } |
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| 142 | ||
| @@ 21-140 (lines=120) @@ | ||
| 18 | * |
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| 19 | * @license https://www.gnu.org/licenses/gpl-2.0.txt GPL-2.0+ |
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| 20 | */ |
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| 21 | class OrderKeyword extends Component |
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| 22 | { |
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| 23 | /** |
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| 24 | * The expression that is used for ordering. |
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| 25 | * |
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| 26 | * @var Expression |
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| 27 | */ |
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| 28 | public $expr; |
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| 29 | ||
| 30 | /** |
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| 31 | * The order type. |
|
| 32 | * |
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| 33 | * @var string |
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| 34 | */ |
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| 35 | public $type; |
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| 36 | ||
| 37 | /** |
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| 38 | * Constructor. |
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| 39 | * |
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| 40 | * @param Expression $expr the expression that we are sorting by |
|
| 41 | * @param string $type the sorting type |
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| 42 | */ |
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| 43 | public function __construct($expr = null, $type = 'ASC') |
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| 44 | { |
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| 45 | $this->expr = $expr; |
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| 46 | $this->type = $type; |
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| 47 | } |
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| 48 | ||
| 49 | /** |
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| 50 | * @param Parser $parser the parser that serves as context |
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| 51 | * @param TokensList $list the list of tokens that are being parsed |
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| 52 | * @param array $options parameters for parsing |
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| 53 | * |
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| 54 | * @return OrderKeyword[] |
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| 55 | */ |
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| 56 | public static function parse(Parser $parser, TokensList $list, array $options = array()) |
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| 57 | { |
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| 58 | $ret = array(); |
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| 59 | ||
| 60 | $expr = new self(); |
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| 61 | ||
| 62 | /** |
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| 63 | * The state of the parser. |
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| 64 | * |
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| 65 | * Below are the states of the parser. |
|
| 66 | * |
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| 67 | * 0 --------------------[ expression ]-------------------> 1 |
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| 68 | * |
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| 69 | * 1 ------------------------[ , ]------------------------> 0 |
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| 70 | * 1 -------------------[ ASC / DESC ]--------------------> 1 |
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| 71 | * |
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| 72 | * @var int |
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| 73 | */ |
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| 74 | $state = 0; |
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| 75 | ||
| 76 | for (; $list->idx < $list->count; ++$list->idx) { |
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| 77 | /** |
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| 78 | * Token parsed at this moment. |
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| 79 | * |
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| 80 | * @var Token |
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| 81 | */ |
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| 82 | $token = $list->tokens[$list->idx]; |
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| 83 | ||
| 84 | // End of statement. |
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| 85 | if ($token->type === Token::TYPE_DELIMITER) { |
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| 86 | break; |
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| 87 | } |
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| 88 | ||
| 89 | // Skipping whitespaces and comments. |
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| 90 | if (($token->type === Token::TYPE_WHITESPACE) || ($token->type === Token::TYPE_COMMENT)) { |
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| 91 | continue; |
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| 92 | } |
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| 93 | ||
| 94 | if ($state === 0) { |
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| 95 | $expr->expr = Expression::parse($parser, $list); |
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| 96 | $state = 1; |
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| 97 | } elseif ($state === 1) { |
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| 98 | if (($token->type === Token::TYPE_KEYWORD) |
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| 99 | && (($token->keyword === 'ASC') || ($token->keyword === 'DESC')) |
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| 100 | ) { |
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| 101 | $expr->type = $token->keyword; |
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| 102 | } elseif (($token->type === Token::TYPE_OPERATOR) |
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| 103 | && ($token->value === ',') |
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| 104 | ) { |
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| 105 | if (!empty($expr->expr)) { |
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| 106 | $ret[] = $expr; |
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| 107 | } |
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| 108 | $expr = new self(); |
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| 109 | $state = 0; |
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| 110 | } else { |
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| 111 | break; |
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| 112 | } |
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| 113 | } |
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| 114 | } |
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| 115 | ||
| 116 | // Last iteration was not processed. |
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| 117 | if (!empty($expr->expr)) { |
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| 118 | $ret[] = $expr; |
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| 119 | } |
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| 120 | ||
| 121 | --$list->idx; |
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| 122 | ||
| 123 | return $ret; |
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| 124 | } |
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| 125 | ||
| 126 | /** |
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| 127 | * @param OrderKeyword|OrderKeyword[] $component the component to be built |
|
| 128 | * @param array $options parameters for building |
|
| 129 | * |
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| 130 | * @return string |
|
| 131 | */ |
|
| 132 | public static function build($component, array $options = array()) |
|
| 133 | { |
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| 134 | if (is_array($component)) { |
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| 135 | return implode(', ', $component); |
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| 136 | } |
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| 137 | ||
| 138 | return $component->expr . ' ' . $component->type; |
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| 139 | } |
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| 140 | } |
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| 141 | ||