Allows disabling the Syntax Highlighter entirely (Options menu). Also:

- Disables Syntax Highlighter automatically if rendering takes longer than a second.

source/global/IDEsettings.bas

@@ -14,6 +14,7 @@ DIM SHARED SaveExeWithSource AS _BYTE, EnableQuickNav AS _BYTE
 DIM SHARED IDEShowErrorsImmediately AS _BYTE
 DIM SHARED ShowLineNumbersSeparator AS _BYTE, ShowLineNumbersUseBG AS _BYTE
 DIM SHARED IgnoreWarnings AS _BYTE, qb64versionprinted AS _BYTE
+DIM SHARED DisableSyntaxHighlighter AS _BYTE
 
 IF LoadedIDESettings = 0 THEN
     'We only want to load the file once when QB64 first starts
@@ -154,6 +155,15 @@ IF LoadedIDESettings = 0 THEN
         WriteConfigSetting "'[MOUSE SETTINGS]", "SwapMouseButton", "FALSE"
     end if
 
+    result = ReadConfigSetting("DisableSyntaxHighlighter", value$)
+    IF value$ = "TRUE" OR VAL(value$) = -1 THEN
+        DisableSyntaxHighlighter = -1
+        WriteConfigSetting "'[GENERAL SETTINGS]", "DisableSyntaxHighlighter", "TRUE"
+    ELSE
+        DisableSyntaxHighlighter = 0
+        WriteConfigSetting "'[GENERAL SETTINGS]", "DisableSyntaxHighlighter", "FALSE"
+    END IF
+
     result = ReadConfigSetting("PasteCursorAtEnd", value$)
     IF result THEN
         IF value$ = "TRUE" OR VAL(value$) = -1 THEN

source/ide/ide_global.bas

@@ -202,6 +202,7 @@ DIM SHARED menus AS INTEGER, idecontextualmenuID AS INTEGER
 DIM SHARED ideeditmenuID AS INTEGER, SearchMenuID AS INTEGER
 DIM SHARED OptionsMenuID AS INTEGER, OptionsMenuSwapMouse AS INTEGER, OptionsMenuPasteCursor AS INTEGER
 DIM SHARED OptionsMenuShowErrorsImmediately AS INTEGER, OptionsMenuIgnoreWarnings AS INTEGER
+DIM SHARED OptionsMenuDisableSyntax AS INTEGER
 DIM SHARED ViewMenuID AS INTEGER, ViewMenuShowLineNumbersSubMenuID AS INTEGER
 DIM SHARED ViewMenuShowSeparatorID AS INTEGER, ViewMenuShowBGID AS INTEGER
 DIM SHARED ViewMenuCompilerWarnings AS INTEGER