Readonly should only apply to default buffers

Ref #1298

internal/buffer/buffer.go

@@ -211,7 +211,7 @@ func NewBuffer(r io.Reader, size int64, path string, startcursor Loc, btype BufT
 		b.EventHandler = NewEventHandler(b.SharedBuffer, b.cursors)
 	}
 
-	if b.Settings["readonly"].(bool) {
+	if b.Settings["readonly"].(bool) && b.Type == BTDefault {
 		b.Type.Readonly = true
 	}
 

internal/buffer/settings.go

@@ -35,7 +35,7 @@ func (b *Buffer) SetOptionNative(option string, nativeValue interface{}) error {
 		}
 	} else if option == "encoding" {
 		b.isModified = true
-	} else if option == "readonly" {
+	} else if option == "readonly" && b.Type == BTDefault {
 		b.Type.Readonly = nativeValue.(bool)
 	}
 

runtime/syntax/zig.yaml

@@ -15,7 +15,7 @@ rules:
       # Numbers (hexadecimal + decimal)
     - constant.number: "\\b(0x[A-F0-9]+|[0-9]+)\\b"
       # Primitive Types / Derived Data Types
-    - type: "([A-Z][a-z]+|(i8|u8|i16|u16|i32|u32|i64|u64|i128|u128|isize|usize|c_short|c_ushort|c_int|c_uint|c_long|c_ulong|c_longlong|c_ulonglong|c_longdouble|c_void|f16|f32|f64|f128|bool|void|noreturn|type|anyerror|comptime_int|comptime_float))"
+    - type: "\\b([A-Z][a-z]+|(i8|u8|i16|u16|i32|u32|i64|u64|i128|u128|isize|usize|c_short|c_ushort|c_int|c_uint|c_long|c_ulong|c_longlong|c_ulonglong|c_longdouble|c_void|f16|f32|f64|f128|bool|void|noreturn|type|anyerror|comptime_int|comptime_float))\\b"
 
     - constant.string:
         start: "\""