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utf-8 strings support #52

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utf-8 strings support #52

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b7ffdea
removed uneeded /span
Jul 6, 2018
deec9a6
utf-8 lines support
Jul 6, 2018
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utf-8 lines support
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Dmitry Pischenko committed Jul 6, 2018
commit deec9a69867d3d254e06ef95f71de4d23cde88d2
21 changes: 14 additions & 7 deletions lib/Diff/Renderer/Html/Array.php
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,13 @@

require_once dirname(__FILE__).'/../Abstract.php';

function substr_replace_utf8($string, $replacement, $position_needle, $length_needle)
{
$str1 = mb_substr ($string, 0, $position_needle, 'UTF-8');
$str2 = mb_substr ($string, $position_needle + $length_needle, null, 'UTF-8');
return $str1 . $replacement . $str2;
}

class Diff_Renderer_Html_Array extends Diff_Renderer_Abstract
{
/**
Expand Down Expand Up @@ -83,11 +90,11 @@ public function render()
list($start, $end) = $this->getChangeExtent($fromLine, $toLine);
if($start != 0 || $end != 0) {
$last = $end + strlen($fromLine);
$fromLine = substr_replace($fromLine, "\0", $start, 0);
$fromLine = substr_replace($fromLine, "\1", $last + 1, 0);
$fromLine = substr_replace_utf8($fromLine, "\0", $start, 0);
$fromLine = substr_replace_utf8($fromLine, "\1", $last + 1, 0);
$last = $end + strlen($toLine);
$toLine = substr_replace($toLine, "\0", $start, 0);
$toLine = substr_replace($toLine, "\1", $last + 1, 0);
$toLine = substr_replace_utf8($toLine, "\0", $start, 0);
$toLine = substr_replace_utf8($toLine, "\1", $last + 1, 0);
$a[$i1 + $i] = $fromLine;
$b[$j1 + $i] = $toLine;
}
Expand Down Expand Up @@ -149,13 +156,13 @@ public function render()
private function getChangeExtent($fromLine, $toLine)
{
$start = 0;
$limit = min(strlen($fromLine), strlen($toLine));
while($start < $limit && $fromLine{$start} == $toLine{$start}) {
$limit = min(mb_strlen($fromLine, 'UTF-8'), mb_strlen($toLine, 'UTF-8'));
while($start < $limit && mb_substr($fromLine, $start, 1, 'UTF-8') == mb_substr($toLine, $start, 1, 'UTF-8')) {
++$start;
}
$end = -1;
$limit = $limit - $start;
while(-$end <= $limit && substr($fromLine, $end, 1) == substr($toLine, $end, 1)) {
while(-$end <= $limit && mb_substr($fromLine, $end, 1, 'UTF-8') == mb_substr($toLine, $end, 1, 'UTF-8')) {
--$end;
}
return array(
Expand Down