some new uxn examples

Author: MESYETI

editors/micro_callisto.yaml

@@ -8,7 +8,7 @@ rules:
     - statement: "\\b(let|enable|requires|struct|version|return|const|enum|restrict)\\b"
     - statement: "\\b(continue|break|union|alias|overwrite|error|extern|call|raw)\\b"
     - statement: "\\b(implement|as|try|catch|throw|unsafe|man|ptr|anon)\\b"
-    - type:      "\\b(addr|void|u8|i8|u16|i16|u32|i32|u64|i64|size|usize|cell|array)\\b"
+    - type:      "\\b(addr|void|u8|i8|u16|i16|u32|i32|u64|i64|size|usize|cell|array|bool)\\b"
     - type:      "\\b[A-Z]+[a-zA-Z_0-9]*[a-z]+[a-zA-Z_0-9]*\\b"
 
     - constant.string:

examples/uxnSierpinski/header.tal renamed to examples/old/uxnSierpinski/header.tal

@@ -0,0 +1,25 @@
+# this is a cat program
+
+include "cores/select.cal"
+include "std/io.cal"
+include "std/args.cal"
+include "uxn/file.cal"
+
+if get_args_length 1 = then
+	"Please pass a file name" print_str new_line
+	0 exit
+end
+
+let Array fileName
+1 &fileName get_arg
+&fileName 0 uxn_open_file
+
+let u8 ch
+while true do
+	&ch 1 0 try uxn_read_file
+	catch
+		0 exit
+	end
+
+	ch print_ch
+end

examples/uxnSierpinski/main.cal renamed to examples/old/uxnSierpinski/main.cal

@@ -0,0 +1,48 @@
+include "cores/select.cal"
+include "std/io.cal"
+include "uxn/uxn.cal"
+include "uxn/screen.cal"
+include "uxn/system.cal"
+
+let bool drawn
+let cell w
+let cell h
+
+func plot cell x cell y cell colour begin
+	x uxn_screen_set_x
+	y uxn_screen_set_y
+	colour 0 uxn_pixel_set_colour uxn_set_pixel
+end
+
+func screen_vector begin
+	if drawn not then
+		let cell x
+		let cell y
+
+		while y h < do
+			0 -> x
+			while x w < do
+				if x y and 0 = then
+					x y 1 plot
+				end
+
+				x 1 + -> x
+			end
+
+			y 1 + -> y
+		end
+
+		1 -> drawn
+	end
+	
+	uxn_brk
+end
+
+uxn_get_screen_size -> h -> w
+
+0x0FFF uxn_set_red
+0x0FFF uxn_set_green
+0x0FFF uxn_set_blue
+&screen_vector uxn_set_screen_vector
+
+uxn_brk

examples/uxn/file.cal

@@ -226,9 +226,9 @@ class StackChecker {
 		}
 
 		foreach (i, ref cond ; node.condition) {
-			if (cond.empty()) {
-				Error(node.error, "Empty condition in if statement");
-			}
+			//if (cond.empty()) {
+			//	Error(node.error, "Empty condition in if statement");
+			//}
 
 			StackCell[] oldStack;