Data commit

Task/String-length/M2000-Interpreter/string-length.m2000

@@ -0,0 +1,28 @@
+module  String_length {
+	A$=format$("J\u0332o\u0332s\u0332e\u0301\u0332")
+	Print Len(A$) = 9  ' true Utf-16LE
+	Print Len.Disp(A$) = 4 \\ display length
+	Buffer Clear Mem as Byte*100
+	\\ Write at memory at offset 0 or address Mem(0)
+	Return Mem, 0:=A$
+	Print Eval$(Mem, 0, 18)
+	For i=0 to 17 step 2
+	      \\ print hex value and character
+	      Hex Eval(Mem, i as integer), ChrCode$(Eval(Mem, i as integer))
+	Next i
+	Document B$=A$
+	\\ encode to utf-8 with BOM (3 bytes 0xEF,0xBB,0xBF)
+	Save.Doc B$, "Checklen.doc", 2
+	Print Filelen("Checklen.doc")=17
+	\\ So length is 14 bytes + 3 the BOM
+	Mem=Buffer("Checklen.doc")
+	Print len(Mem)=17 // len works for buffers too - unit byte
+	// version 12 can handle strings without suffix $
+	C=eval$(mem, 3, 14) // from 4th byte get 14 bytes in a string
+	Print len(C)*2=14 ' bytes   // len()) for strings return double type of words (can return 0.5)
+	C=string$(C as utf8dec) ' decode bytes from utf8 to utf16LE
+	Print len(C)=9, C=A$, Len.Disp(C)=4
+	Print C
+	Report 2, C  // proportional print on console - for text center justified rendering (2 - center)
+}
+String_length