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<?php |
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namespace Netdudes\DataSourceryBundle\UQL; |
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class Tokens |
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{ |
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public static $terminalTokens; |
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public static $tokenCategories = [ |
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'GROUP_START' => ['T_BRACKET_OPEN'], |
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'GROUP_END' => ['T_BRACKET_CLOSE'], |
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'ARRAY_START' => ['T_ARRAY_OPEN'], |
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'ARRAY_END' => ['T_ARRAY_CLOSE'], |
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'ARRAY_SEPARATOR' => ['T_ARRAY_SEPARATOR'], |
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'OPERATOR' => [ |
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'T_OP_EQ', |
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'T_OP_NEQ', |
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'T_OP_LT', |
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'T_OP_GT', |
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'T_OP_LTE', |
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'T_OP_GTE', |
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'T_OP_LIKE', |
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'T_OP_IN', |
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'T_OP_NIN', |
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], |
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'LOGIC' => [ |
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'T_OP_AND', |
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'T_OP_OR', |
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'T_OP_XOR', |
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], |
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'LITERAL' => [ |
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'T_LITERAL_TRUE', |
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'T_LITERAL_FALSE', |
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'T_LITERAL_EMPTY', |
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'T_FUNCTION_CALL', |
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'T_LITERAL' |
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], |
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'IDENTIFIER' => ['T_IDENTIFIER'], |
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]; |
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public static $tokenCanonicalValues = [ |
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'T_BRACKET_OPEN' => ['('], |
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'T_BRACKET_CLOSE' => [')'], |
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'T_ARRAY_OPEN' => ['['], |
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'T_ARRAY_CLOSE' => [']'], |
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'T_ARRAY_SEPARATOR' => [','], |
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'T_OP_NEQ' => ['!='], |
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'T_OP_LTE' => ['<='], |
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'T_OP_GTE' => ['>='], |
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'T_OP_LT' => ['<'], |
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'T_OP_GT' => ['>'], |
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'T_OP_LIKE' => ['~'], |
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'T_OP_EQ' => ['='], |
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'T_OP_IN' => ['in'], |
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'T_OP_AND' => ['and'], |
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'T_OP_OR' => ['or'], |
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'T_OP_XOR' => ['xor'], |
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'T_LITERAL_FALSE' => ['false'], |
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'T_LITERAL_TRUE' => ['true'], |
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'T_LITERAL_EMPTY' => ['empty'], |
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]; |
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private static $baseTokens = [ |
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"/^(\\()/" => "T_BRACKET_OPEN", |
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"/^(\\))/" => "T_BRACKET_CLOSE", |
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"/^(\\[)/" => "T_ARRAY_OPEN", |
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"/^(\\])/" => "T_ARRAY_CLOSE", |
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"/^(,)/" => "T_ARRAY_SEPARATOR", |
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"/^(AND)(\s|$)/i" => "T_LOGIC_AND", |
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"/^(XOR)(\s|$)/i" => "T_LOGIC_XOR", |
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"/^(OR)(\s|$)/i" => "T_LOGIC_OR", |
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"/^(false)(\s|$)/i" => "T_LITERAL_FALSE", |
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"/^(true)(\s|$)/i" => "T_LITERAL_TRUE", |
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"/^(empty)(\s|$)/i" => "T_LITERAL_EMPTY", |
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"/^([a-zA-Z0-9]+\([^\(\)]*\))/" => "T_FUNCTION_CALL", |
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"/^([0-9]+|'[^']*'|\"[^\"]*\")/" => "T_LITERAL", |
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"/^([a-zA-Z\\_]+)/" => "T_IDENTIFIER", |
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"/^(\\s+)/" => "T_WHITESPACE", |
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]; |
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private static $operators = [ |
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"STRING_NEQ" => ["!=", "not", "is not"], |
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"NUMERIC_NEQ" => ["!=", "not", "is not"], |
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"DATETIME_NEQ" => ["!=", "<>", "not", "is not"], |
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"NUMERIC_LTE" => ["<="], |
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"DATETIME_LTE" => ["<="], |
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"NUMERIC_GTE" => [">="], |
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"DATETIME_GTE" => [">="], |
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"NUMERIC_LT" => ["<", "less than"], |
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"DATETIME_LT" => ["<", "before"], |
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"NUMERIC_GT" => [">", "more than"], |
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"DATETIME_GT" => [">", "after"], |
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"STRING_LIKE" => ["~", "like"], |
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"STRING_EQ" => ["=", "equals", "is"], |
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"NUMERIC_EQ" => ["=", "equals", "is"], |
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"DATETIME_EQ" => ["=", "on", "is", "at"], |
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"IN" => ["in"], |
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"NIN" => ["not in"], |
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]; |
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private static $operatorTokenAssociations = [ |
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"T_OP_IN" => ["IN"], |
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"T_OP_NIN" => ["NIN"], |
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"T_OP_NEQ" => ["STRING_NEQ", "NUMERIC_NEQ", "DATETIME_NEQ"], |
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"T_OP_EQ" => ["STRING_EQ", "NUMERIC_EQ", "DATETIME_EQ"], |
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"T_OP_GTE" => ["NUMERIC_GTE", "DATETIME_GTE"], |
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"T_OP_GT" => ["NUMERIC_GT", "DATETIME_GT"], |
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"T_OP_LTE" => ["NUMERIC_LTE", "DATETIME_LTE"], |
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"T_OP_LT" => ["NUMERIC_LT", "DATETIME_LT"], |
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"T_OP_LIKE" => ["STRING_LIKE"], |
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]; |
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/** |
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* @var bool |
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*/ |
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private static $initialised = false; |
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public static function initialize() |
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{ |
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if (self::$initialised) { |
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return; |
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} |
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$tokens = []; |
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foreach (self::$operatorTokenAssociations as $token => $operators) { |
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$strings = []; |
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foreach ($operators as $operator) { |
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$strings = array_merge($strings, self::$operators[$operator]); |
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} |
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$strings = array_unique($strings); |
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usort( |
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$strings, |
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function ($a, $b) { |
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return strlen($a) - strlen($b); |
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} |
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); |
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$regex = "/^(" . implode("|", $strings) . ")(\s|$)/i"; |
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$tokens[$regex] = $token; |
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} |
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self::$terminalTokens = array_merge($tokens, self::$baseTokens); |
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self::$initialised = true; |
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} |
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} |
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// Initialise the static class |
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Tokens::initialize(); |
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netdudes /
DataSourceryBundle
