string: optimize is_ascii()

Author: medvednikov

thirdparty/sokol/sokol_app.h

@@ -3907,6 +3907,7 @@ _SOKOL_PRIVATE void _sapp_macos_frame(void) {
 @implementation _sapp_macos_app_delegate
 - (void)applicationDidFinishLaunching:(NSNotification*)aNotification {
     _SOKOL_UNUSED(aNotification);
+
     _sapp_macos_init_cursors();
     if ((_sapp.window_width == 0) || (_sapp.window_height == 0)) {
         // use 4/5 of screen size as default size
@@ -4104,7 +4105,17 @@ keyEquivalent:@"v"];
     _sapp_macos_update_dimensions();
     [NSEvent setMouseCoalescingEnabled:NO];
 
+
     // __v_ start
+/*
+       NSApplicationPresentationOptions options = (NSApplicationPresentationAutoHideMenuBar |
+                                                NSApplicationPresentationAutoHideDock |
+                                                NSApplicationPresentationFullScreen |
+                                                NSApplicationPresentationHideDock);
+
+    [NSApp setPresentationOptions:options];
+   */
+
     //[NSEvent setMouseCoalescingEnabled:NO];
     // __v_ end
 }

vlib/builtin/string.v

@@ -2604,7 +2604,12 @@ pub fn (name string) match_glob(pattern string) bool {
 // is_ascii returns true  if all characters belong to the US-ASCII set ([` `..`~`])
 @[inline]
 pub fn (s string) is_ascii() bool {
-	return !s.bytes().any(it < u8(` `) || it > u8(`~`))
+	for i := 0; i < s.len; i++ {
+		if s[i] < u8(` `) || s[i] > u8(`~`) {
+			return false
+		}
+	}
+	return true
 }
 
 // camel_to_snake convert string from camelCase to snake_case