Fatal error when using emphasize tags around a string #148
Description
Using tempest/highlight 2.10.2, the following piece of code results in a fatal error:
<?php
use Tempest\Highlight\Highlighter;
require_once __DIR__ . '/../vendor/autoload.php';
$highlighter = new Highlighter();
$code = '$foo = {_"SELECT * FROM users"_};';
$highlighter->parse($code, 'php');PHP Fatal error: Uncaught TypeError: str_replace(): Argument #3 ($subject) must be of type array|string, null given in /vendor/tempest/highlight/src/Languages/Base/Injections/AdditionInjection.php:21 Stack trace: #0 /vendor/tempest/highlight/src/Languages/Base/Injections/AdditionInjection.php(21): str_replace() #1 /vendor/tempest/highlight/src/Highlighter.php(146): Tempest\Highlight\Languages\Base\Injections\AdditionInjection->parse() #2 /vendor/tempest/highlight/src/Highlighter.php(96): Tempest\Highlight\Highlighter->parseContent() #3 reproduce.php(11): Tempest\Highlight\Highlighter->parse() #4 {main} thrown in /vendor/tempest/highlight/src/Languages/Base/Injections/AdditionInjection.php on line 21
It looks like the preg_replace('/\R/u', PHP_EOL, $content) call in https://github.com/tempestphp/highlight/blob/2.10.2/src/Languages/Base/Injections/AdditionInjection.php#L19 is returning null.
Using Xdebug, if I evaluate preg_last_error_msg() right after this line I get the following error message:
Malformed UTF-8 characters, possibly incorrectly encoded
Note that I'm using the emphasis tags {_ _} around the string. Without those it works fine:
$code = '$foo = "SELECT * FROM users";';
$highlighter->parse($code, 'php');Details of my PHP version:
PHP 8.3.10 (cli) (built: Aug 2 2024 15:31:39) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.10, Copyright (c) Zend Technologies
with Zend OPcache v8.3.10, Copyright (c), by Zend Technologies
with Xdebug v3.3.2, Copyright (c) 2002-2024, by Derick Rethans