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Pierre Hubert
2016-11-19 12:08:12 +01:00
commit 990540b2b9
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62
3rdparty/luminous/languages/sql.php vendored Executable file
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<?php
class LuminousSQLScanner extends LuminousSimpleScanner {
public function init() {
$this->case_sensitive = false;
// $this->remove_stream_filter('oo-syntax');
$this->remove_filter('comment-to-doc');
$this->remove_filter('constant');
include(dirname(__FILE__) . '/include/sql.php');
$this->add_identifier_mapping('KEYWORD', $keywords);
$this->add_identifier_mapping('TYPE', $types);
$this->add_identifier_mapping('VALUE', $values);
$this->add_identifier_mapping('OPERATOR', $operators);
$this->add_identifier_mapping('FUNCTION', $functions);
$this->add_pattern('IDENT', '/[a-zA-Z_]+\w*/');
$this->add_pattern('COMMENT', LuminousTokenPresets::$C_COMMENT_ML);
// # is for MySQL.
$this->add_pattern('COMMENT', '/(?:\#|--).*/');
$this->add_pattern('STRING', LuminousTokenPresets::$SQL_SINGLE_STR_BSLASH);
$this->add_pattern('STRING', LuminousTokenPresets::$DOUBLE_STR);
$this->add_pattern('STRING', '/ ` (?> [^\\\\`]+ | \\\\. )* (?: `|$)/x');
$this->add_pattern('NUMERIC', LuminousTokenPresets::$NUM_HEX);
$this->add_pattern('NUMERIC', LuminousTokenPresets::$NUM_REAL);
$this->add_pattern('OPERATOR', '/[¬!%^&*\\-=+~:<>\\|\\/]+/');
$this->add_pattern('KEYWORD', '/\\?/');
}
public static function guess_language($src, $info) {
// we have to be careful not to assign too much weighting to
// generic SQL keywords, which will often appear in other languages
// when those languages are executing SQL statements
//
// All in all, SQL is pretty hard to recognise because generally speaking,
// an SQL dump will probably contain only a tiny fraction of SQL keywords
// with the majority of the text just being data.
$p = 0.0;
// if we're lucky, the top line will be a comment containing the phrase
// 'SQL' or 'dump'
if (strpos($info['trimmed'], '--') === 0 && isset($info['lines'][0])
&& (
stripos($info['lines'][0], 'sql') !== false)
|| stripos($info['lines'][0], 'dump' !== false)
)
$p = 0.5;
foreach(array('SELECT', 'CREATE TABLE', 'INSERT INTO', 'DROP TABLE',
'INNER JOIN', 'OUTER JOIN') as $str)
{
if (strpos($src, $str) !== false) $p += 0.01;
}
// single line comments --
if (preg_match_all('/^--/m', $src, $m) > 5)
$p += 0.05;
if (preg_match('/VARCHAR\(\d+\)/', $src)) $p += 0.05;
return $p;
}
}