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<?php
/*
* This file is part of PHP CS Fixer.
*
* (c) Fabien Potencier <fabien@symfony.com>
* Dariusz Rumiński <dariusz.ruminski@gmail.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace Symfony\CS;
use Symfony\CS\Tokenizer\Tokens;
/**
* @author Carlos Cirello <carlos.cirello.nl@gmail.com>
*/
abstract class AbstractAlignFixer extends AbstractFixer
{
/**
* @const Placeholder used as anchor for right alignment.
*/
const ALIGNABLE_PLACEHOLDER = "\x2 ALIGNABLE%d \x3";
/**
* Look for group of placeholders, and provide vertical alignment.
*
* @param Tokens $tokens
* @param int $deepestLevel
*
* @return string
*/
protected function replacePlaceholder(Tokens $tokens, $deepestLevel)
{
$tmpCode = $tokens->generateCode();
for ($j = 0; $j <= $deepestLevel; ++$j) {
$placeholder = sprintf(self::ALIGNABLE_PLACEHOLDER, $j);
if (false === strpos($tmpCode, $placeholder)) {
continue;
}
$lines = explode("\n", $tmpCode);
$linesWithPlaceholder = array();
$blockSize = 0;
$linesWithPlaceholder[$blockSize] = array();
foreach ($lines as $index => $line) {
if (substr_count($line, $placeholder) > 0) {
$linesWithPlaceholder[$blockSize][] = $index;
} else {
++$blockSize;
$linesWithPlaceholder[$blockSize] = array();
}
}
foreach ($linesWithPlaceholder as $group) {
if (count($group) < 1) {
continue;
}
$rightmostSymbol = 0;
foreach ($group as $index) {
$rightmostSymbol = max($rightmostSymbol, strpos(utf8_decode($lines[$index]), $placeholder));
}
foreach ($group as $index) {
$line = $lines[$index];
$currentSymbol = strpos(utf8_decode($line), $placeholder);
$delta = abs($rightmostSymbol - $currentSymbol);
if ($delta > 0) {
$line = str_replace($placeholder, str_repeat(' ', $delta).$placeholder, $line);
$lines[$index] = $line;
}
}
}
$tmpCode = str_replace($placeholder, '', implode("\n", $lines));
}
return $tmpCode;
}
}