本文整理匯總了PHP中SqlFormatter::all_boundaries方法的典型用法代碼示例。如果您正苦於以下問題：PHP SqlFormatter::all_boundaries方法的具體用法？PHP SqlFormatter::all_boundaries怎麽用？PHP SqlFormatter::all_boundaries使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類SqlFormatter的用法示例。
在下文中一共展示了SqlFormatter::all_boundaries方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的PHP代碼示例。
示例1: getNextToken
/**
* Return the next token and token type in a SQL string.
* Quoted strings, comments, reserved words, whitespace, and punctuation are all their own tokens.
*
* @param String $string The SQL string
* @param array $previous The result of the previous getNextToken() call
*
* @return Array An associative array containing a 'token' and 'type' key.
*/
protected static function getNextToken($string, $previous = null)
{
// If the next token is a comment
if ($string[0] === '#' || substr($string, 0, 2) === '--' || substr($string, 0, 2) === '/*') {
// Comment until end of line
if ($string[0] === '-' || $string[0] === '#') {
$last = strpos($string, "\n");
$type = 'comment';
} else {
// Comment until closing comment tag
$last = strpos($string, "*/", 2) + 2;
$type = 'block comment';
}
if ($last === false) {
$last = strlen($string);
}
return array('token' => substr($string, 0, $last), 'type' => $type);
}
// If the next item is a string
if (in_array($string[0], self::$quotes)) {
$quote = $string[0];
for ($i = 1, $length = strlen($string); $i < $length; $i++) {
$next_char = null;
if (isset($string[$i + 1])) {
$next_char = $string[$i + 1];
}
// Escaped (either backslash or backtick escaped)
if ($quote !== '`' && $string[$i] === '\\' || $quote === '`' && $string[$i] === '`' && $next_char === '`') {
$i++;
} elseif ($string[$i] === $quote) {
break;
}
}
if ($quote === '`') {
$type = 'backtick quote';
} else {
$type = 'quote';
}
return array('token' => substr($string, 0, $i + 1), 'type' => $type);
}
// Separators
if (in_array($string[0], self::$boundaries)) {
// If it is a simple string or empty between the parentheses, just count as a word
// this makes it so we don't split things like NOW() or COUNT(*) into separate lines
if ($string[0] === '(') {
// "()"
if (isset($string[1]) && $string[1] === ')') {
return array('token' => '()', 'type' => 'word');
}
// "(word/whitespace/boundary)"
$next_token = self::getNextToken(substr($string, 1));
$length = strlen($next_token['token']);
if (isset($string[$length + 1]) && $string[$length + 1] === ')') {
if ($next_token['type'] === 'word' || $next_token['type'] === 'whitespace' || $next_token['type'] === 'boundary') {
return array('token' => '(' . $next_token['token'] . ')', 'type' => 'word');
}
}
}
//return single parentheses as their own token
if ($string[0] === '(' || $string[0] === ')') {
return array('token' => $string[0], 'type' => $string[0]);
}
// If there are 1 or more boundary characters together, return as a single word
$next_token = self::getNextToken(substr($string, 1));
if ($next_token['type'] === 'boundary') {
return array('token' => $string[0] . $next_token['token'], 'type' => 'boundary');
}
// Otherwise, just return the single boundary character
if ($string[0] === '.' || $string[0] === ',') {
$type = $string[0];
} else {
$type = 'boundary';
}
return array('token' => $string[0], 'type' => $type);
}
// Whitespace
if (in_array($string[0], self::$whitespace)) {
for ($i = 1, $length = strlen($string); $i < $length; $i++) {
if (!in_array($string[$i], self::$whitespace)) {
break;
}
}
return array('token' => substr($string, 0, $i), 'type' => 'whitespace');
}
if (!self::$init) {
//Sort reserved word list from longest word to shortest
usort(self::$reserved, array('SqlFormatter', 'sortLength'));
//Combine boundary characters and whitespace
self::$all_boundaries = array_merge(self::$boundaries, self::$whitespace);
self::$init = true;
}
//.........這裏部分代碼省略.........