mirror of
https://github.com/pierre42100/comunic
synced 2024-11-16 18:41:13 +00:00
63 lines
2.4 KiB
PHP
63 lines
2.4 KiB
PHP
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<?php
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class LuminousSQLScanner extends LuminousSimpleScanner {
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public function init() {
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$this->case_sensitive = false;
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// $this->remove_stream_filter('oo-syntax');
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$this->remove_filter('comment-to-doc');
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$this->remove_filter('constant');
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include(dirname(__FILE__) . '/include/sql.php');
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$this->add_identifier_mapping('KEYWORD', $keywords);
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$this->add_identifier_mapping('TYPE', $types);
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$this->add_identifier_mapping('VALUE', $values);
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$this->add_identifier_mapping('OPERATOR', $operators);
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$this->add_identifier_mapping('FUNCTION', $functions);
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$this->add_pattern('IDENT', '/[a-zA-Z_]+\w*/');
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$this->add_pattern('COMMENT', LuminousTokenPresets::$C_COMMENT_ML);
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// # is for MySQL.
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$this->add_pattern('COMMENT', '/(?:\#|--).*/');
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$this->add_pattern('STRING', LuminousTokenPresets::$SQL_SINGLE_STR_BSLASH);
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$this->add_pattern('STRING', LuminousTokenPresets::$DOUBLE_STR);
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$this->add_pattern('STRING', '/ ` (?> [^\\\\`]+ | \\\\. )* (?: `|$)/x');
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$this->add_pattern('NUMERIC', LuminousTokenPresets::$NUM_HEX);
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$this->add_pattern('NUMERIC', LuminousTokenPresets::$NUM_REAL);
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$this->add_pattern('OPERATOR', '/[¬!%^&*\\-=+~:<>\\|\\/]+/');
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$this->add_pattern('KEYWORD', '/\\?/');
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}
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public static function guess_language($src, $info) {
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// we have to be careful not to assign too much weighting to
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// generic SQL keywords, which will often appear in other languages
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// when those languages are executing SQL statements
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//
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// All in all, SQL is pretty hard to recognise because generally speaking,
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// an SQL dump will probably contain only a tiny fraction of SQL keywords
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// with the majority of the text just being data.
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$p = 0.0;
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// if we're lucky, the top line will be a comment containing the phrase
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// 'SQL' or 'dump'
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if (strpos($info['trimmed'], '--') === 0 && isset($info['lines'][0])
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&& (
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stripos($info['lines'][0], 'sql') !== false)
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|| stripos($info['lines'][0], 'dump' !== false)
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)
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$p = 0.5;
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foreach(array('SELECT', 'CREATE TABLE', 'INSERT INTO', 'DROP TABLE',
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'INNER JOIN', 'OUTER JOIN') as $str)
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{
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if (strpos($src, $str) !== false) $p += 0.01;
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}
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// single line comments --
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if (preg_match_all('/^--/m', $src, $m) > 5)
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$p += 0.05;
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if (preg_match('/VARCHAR\(\d+\)/', $src)) $p += 0.05;
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return $p;
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}
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}
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