feat(spellchecking): ignore commands for spellchecking (#6731)

src/widgets/splits/InputHighlighter.cpp

@@ -8,6 +8,7 @@
 #include "common/Aliases.hpp"
 #include "common/LinkParser.hpp"
 #include "controllers/accounts/AccountController.hpp"
+#include "controllers/commands/CommandController.hpp"
 #include "controllers/spellcheck/SpellChecker.hpp"
 #include "messages/Emote.hpp"
 #include "providers/bttv/BttvEmotes.hpp"
@@ -96,19 +97,26 @@ void InputHighlighter::highlightBlock(const QString &text)
     auto *channel = this->channel.lock().get();
 
     QStringView textView = text;
+
+    // skip leading command trigger
+    auto cmdTriggerLen = getApp()->getCommands()->commandTriggerLen(textView);
+    textView = textView.sliced(cmdTriggerLen);
+
 #if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
     auto it = this->wordRegex.globalMatchView(textView);
 #else
     auto it = this->wordRegex.globalMatch(textView);
 #endif
+
     while (it.hasNext())
     {
         auto match = it.next();
         auto text = match.captured();
         if (!isIgnoredWord(channel, text) && !this->spellChecker.check(text))
         {
-            this->setFormat(static_cast<int>(match.capturedStart()),
-                            static_cast<int>(text.size()), this->spellFmt);
+            this->setFormat(
+                static_cast<int>(match.capturedStart() + cmdTriggerLen),
+                static_cast<int>(text.size()), this->spellFmt);
         }
     }
 }