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Avoid using huge amount of memory when formatting long exception

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This commit is contained in:
Cyril PASCAL 2019-07-25 10:32:30 +02:00 committed by Robin Chalas
parent 9216cb75ac
commit 47ffbad82d
1 changed files with 14 additions and 8 deletions
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22
src/Symfony/Component/Console/Application.php
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@ -1149,15 +1149,21 @@ class Application implements ResetInterface
$utf8String = mb_convert_encoding($string, 'utf8', $encoding);
$lines = [];
$line = '';
foreach (preg_split('//u', $utf8String) as $char) {
// test if $char could be appended to current line
if (mb_strwidth($line.$char, 'utf8') <= $width) {
$line .= $char;
continue;
$offset = 0;
while (preg_match('/.{1,10000}/u', $utf8String, $m, 0, $offset)) {
$offset += \strlen($m[0]);
foreach (preg_split('//u', $m[0]) as $char) {
// test if $char could be appended to current line
if (mb_strwidth($line.$char, 'utf8') <= $width) {
$line .= $char;
continue;
}
// if not, push current line to array and make new line
$lines[] = str_pad($line, $width);
$line = $char;
}
// if not, push current line to array and make new line
$lines[] = str_pad($line, $width);
$line = $char;
}
$lines[] = \count($lines) ? str_pad($line, $width) : $line;