140 lines
3.7 KiB
PHP
140 lines
3.7 KiB
PHP
<?php
|
|
|
|
/**
|
|
* This file is part of the PropelBundle package.
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*
|
|
* @license MIT License
|
|
*/
|
|
|
|
namespace Propel\Bundle\PropelBundle\Twig\Extension;
|
|
|
|
/**
|
|
* SyntaxExtension class
|
|
*
|
|
* @package PropelBundle
|
|
* @subpackage Extension
|
|
* @author William DURAND <william.durand1@gmail.com>
|
|
*/
|
|
class SyntaxExtension extends \Twig_Extension
|
|
{
|
|
public function getFilters()
|
|
{
|
|
return [
|
|
new \Twig_SimpleFilter('format_sql', [$this, 'formatSQL'], ['is_safe' => ['html']]),
|
|
new \Twig_SimpleFilter('format_memory', [$this, 'formatMemory']),
|
|
];
|
|
}
|
|
|
|
public function getName()
|
|
{
|
|
return 'propel_syntax_extension';
|
|
}
|
|
|
|
/**
|
|
* Format a byte count into a human-readable representation.
|
|
*
|
|
* @param integer $bytes Byte count to convert. Can be negative.
|
|
* @param integer $precision How many decimals to include.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function formatMemory($bytes, $precision = 3)
|
|
{
|
|
$absBytes = abs($bytes);
|
|
$sign = ($bytes == $absBytes) ? 1 : -1;
|
|
$suffix = array('B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB');
|
|
$total = count($suffix);
|
|
|
|
for ($i = 0; $absBytes > 1024 && $i < $total; $i++) {
|
|
$absBytes /= 1024;
|
|
}
|
|
|
|
return self::toPrecision($sign * $absBytes, $precision) . $suffix[$i];
|
|
}
|
|
|
|
public function formatSQL($sql)
|
|
{
|
|
// list of keywords to prepend a newline in output
|
|
$newlines = array(
|
|
'FROM',
|
|
'(((FULL|LEFT|RIGHT)? ?(OUTER|INNER)?|CROSS|NATURAL)? JOIN)',
|
|
'VALUES',
|
|
'WHERE',
|
|
'ORDER BY',
|
|
'GROUP BY',
|
|
'HAVING',
|
|
'LIMIT',
|
|
);
|
|
|
|
// list of keywords to highlight
|
|
$keywords = array_merge($newlines, array(
|
|
// base
|
|
'SELECT', 'UPDATE', 'DELETE', 'INSERT', 'REPLACE',
|
|
'SET',
|
|
'INTO',
|
|
'AS',
|
|
'DISTINCT',
|
|
|
|
// most used methods
|
|
'COUNT',
|
|
'AVG',
|
|
'MIN',
|
|
'MAX',
|
|
|
|
// joins
|
|
'ON', 'USING',
|
|
|
|
// where clause
|
|
'(IS (NOT)?)?NULL',
|
|
'(NOT )?IN',
|
|
'(NOT )?I?LIKE',
|
|
'AND', 'OR', 'XOR',
|
|
'BETWEEN',
|
|
|
|
// order, group, limit ..
|
|
'ASC',
|
|
'DESC',
|
|
'OFFSET',
|
|
));
|
|
|
|
$sql = preg_replace(array(
|
|
'/\b('.implode('|', $newlines).')\b/',
|
|
'/\b('.implode('|', $keywords).')\b/',
|
|
'/(\/\*.*\*\/)/',
|
|
'/(`[^`.]*`)/',
|
|
'/(([0-9a-zA-Z$_]+)\.([0-9a-zA-Z$_]+))/',
|
|
), array(
|
|
'<br />\\1',
|
|
'<span class="SQLKeyword">\\1</span>',
|
|
'<span class="SQLComment">\\1</span>',
|
|
'<span class="SQLName">\\1</span>',
|
|
'<span class="SQLName">\\1</span>',
|
|
), $sql);
|
|
|
|
return $sql;
|
|
}
|
|
|
|
/**
|
|
* Rounding to significant digits (sort of like JavaScript's toPrecision()).
|
|
*
|
|
* @param float $number Value to round
|
|
* @param integer $significantFigures Number of significant figures
|
|
*
|
|
* @return float
|
|
*/
|
|
public static function toPrecision($number, $significantFigures = 3)
|
|
{
|
|
if (0 === $number) {
|
|
return 0;
|
|
}
|
|
|
|
$significantDecimals = floor($significantFigures - log10(abs($number)));
|
|
$magnitude = pow(10, $significantDecimals);
|
|
$shifted = round($number * $magnitude);
|
|
|
|
return number_format($shifted / $magnitude, $significantDecimals);
|
|
}
|
|
}
|