CEdit: null character support; reduced memory usage when replacing text and moving lines

git-svn-id: svn://kolibrios.org@9560 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/cedit/SRC/CEdit.ob07

@@ -1,5 +1,5 @@
 (*
-    Copyright 2021 Anton Krotov
+    Copyright 2021, 2022 Anton Krotov
 
     This file is part of CEdit.
 
@@ -28,7 +28,7 @@ IMPORT
     RW, Ini, EB := EditBox, Tabs, Toolbar, SB := StatusBar;
 
 CONST
-    HEADER = "CEdit (30-dec-2021)";
+    HEADER = "CEdit (02-jan-2022)";
 
     ShellFilter = "";
     EditFilter = "SH|INC|TXT|ASM|OB07|C|CPP|H|PAS|PP|LUA|INI|JSON";
@@ -1793,16 +1793,19 @@ BEGIN
     |btnFindNext:
         IF searchText # "" THEN
             notFound := ~T.findNext(text, BKW.value);
+            SetFocus(FindEdit, FALSE);
             repaint
         END
     |btnReplace:
         T.replace(text, replaceText, LENGTH(searchText));
+        SetFocus(FindEdit, FALSE);
         repaint
     |btnReplaceAll:
         notFound := ~T.search(text, searchText, cs, whole);
         IF ~notFound THEN
             replaced := T.replaceAll(text, replaceText, LENGTH(searchText));
         END;
+        SetFocus(FindEdit, FALSE);
         repaint
     |btnGoto:
         goto;

programs/develop/cedit/SRC/Clipboard.ob07

@@ -1,5 +1,5 @@
 (*
-    Copyright 2021 Anton Krotov
+    Copyright 2021, 2022 Anton Krotov
 
     This file is part of CEdit.
 
@@ -24,7 +24,6 @@ IMPORT SYSTEM, KOSAPI, E := Encodings, Lines, K := KolibriOS;
 CONST
     TTEXT = 0;
     lenEOL* = 2;
-    TAB = 9X;
 
 TYPE
     tBuffer* = POINTER TO RECORD
@@ -60,11 +59,14 @@ BEGIN
     ptr := buffer.dataPtr;
     WHILE cnt > 0 DO
         SYSTEM.GET(ptr, wch);
-        IF wch # Lines.TAB1 THEN
+        IF wch = Lines.TAB1 THEN
-            SYSTEM.PUT(pchar, CHR(E.UNI[ORD(wch), E.CP866] MOD 256));
+        	DEC(size)
+        ELSIF wch = Lines.NUL THEN
+            SYSTEM.PUT(pchar, 0X);
             INC(pchar)
         ELSE
-            DEC(size);
+            SYSTEM.PUT(pchar, CHR(E.UNI[ORD(wch), E.CP866] MOD 256));
+            INC(pchar)
         END;
         INC(ptr, 2);
         DEC(cnt)

programs/develop/cedit/SRC/Graph.ob07

@@ -1,5 +1,5 @@
 (*
-    Copyright 2021 Anton Krotov
+    Copyright 2021, 2022 Anton Krotov
 
     This file is part of CEdit.
 
@@ -282,6 +282,9 @@ BEGIN
                 	ELSE
                 		color := canvas.textColor
                 	END;
+					IF c = Lines.NUL THEN
+                		c := 0X
+					END;
                     KOSAPI.sysfunc6(4, x*65536 + y, font + color, SYSTEM.ADR(c), 1, canvas.bitmap - 8)
                 END;
                 INC(x, canvas.font.width);

programs/develop/cedit/SRC/Lines.ob07

@@ -1,5 +1,5 @@
 (*
-    Copyright 2021 Anton Krotov
+    Copyright 2021, 2022 Anton Krotov
 
     This file is part of CEdit.
 
@@ -26,7 +26,8 @@ CONST
     WCHAR_SIZE = 2;
     SPACE* = 20X;
     TAB* = 9X;
-    TAB1* = 0FFFEX;
+    NUL* = 0FDD0X;
+    TAB1* = 0FDD1X;
 
 TYPE
 

programs/develop/cedit/SRC/List.ob07

@@ -1,5 +1,5 @@
 (*
-    Copyright 2021 Anton Krotov
+    Copyright 2021, 2022 Anton Krotov
 
     This file is part of CEdit.
 
@@ -151,6 +151,7 @@ PROCEDURE _insert* (list: tList; item, newItem: tItem);
 VAR
     next: tItem;
 BEGIN
+	IF item # NIL THEN
 	    next := item.next;
 	    IF next # NIL THEN
 	        movPtr(next.prev, newItem);
@@ -161,42 +162,17 @@ BEGIN
 	    ELSE
 	        _append(list, newItem)
 	    END
+    ELSE
+    	ASSERT(list.first # NIL);
+    	movPtr(newItem.prev, NIL);
+    	movPtr(newItem.next, list.first);
+    	movPtr(list.first.prev, newItem);
+    	movPtr(list.first, newItem);
+    	movInt(list.count, list.count + 1)
+    END
 END _insert;
 
 
-PROCEDURE _exchange* (list: tList; a, b: tItem);
-VAR
-    a0, b0: tItem;
-BEGIN
-    IF (a # NIL) & (b # NIL) THEN
-        ASSERT((a.next = b) & (b.prev = a));
-        a0 := a.prev;
-        b0 := b.next;
-        movPtr(b.prev, a0);
-        movPtr(a.next, b0);
-        movPtr(b.next, a);
-        movPtr(a.prev, b);
-        IF a0 # NIL THEN
-            IF b0 # NIL THEN
-                movPtr(a0.next, b);
-                movPtr(b0.prev, a);
-            ELSE
-                movPtr(a0.next, b);
-                movPtr(list.last, a)
-            END
-        ELSE
-            IF b0 # NIL THEN
-                movPtr(b0.prev, a);
-                movPtr(list.first, b)
-            ELSE
-                movPtr(list.first, b);
-                movPtr(list.last, a)
-            END
-        END
-    END
-END _exchange;
-
-
 PROCEDURE append* (list: tList; item: tItem);
 BEGIN
     item.prev := list.last;

programs/develop/cedit/SRC/RW.ob07

@@ -1,5 +1,5 @@
 (*
-    Copyright 2021 Anton Krotov
+    Copyright 2021, 2022 Anton Krotov
 
     This file is part of CEdit.
 
@@ -178,11 +178,14 @@ BEGIN
         c := WCHR(file.getChar(file) MOD 65536);
         IF c = Lines.TAB1 THEN
         	c := SPACE
+        ELSIF c = 0X THEN
+        	c := Lines.NUL
         END;
+
         IF c = CR THEN
             eol := TRUE;
             file.CR := TRUE
-        ELSIF (c = LF) OR (c = 0X) THEN
+        ELSIF c = LF THEN
             IF ~file.CR THEN
                 eol := TRUE
             END;
@@ -424,7 +427,11 @@ VAR
 BEGIN
     FOR i := 0 TO n - 1 DO
         c := Lines.getChar(line, i);
-        IF c # Lines.TAB1 THEN
+        IF c = Lines.TAB1 THEN
+        	(* nothing to do *)
+        ELSIF c = Lines.NUL THEN
+        	file.putChar(file, 0)
+        ELSE
         	file.putChar(file, ORD(c))
         END
     END

programs/develop/cedit/SRC/Text.ob07

@@ -1,5 +1,5 @@
 (*
-    Copyright 2021 Anton Krotov
+    Copyright 2021, 2022 Anton Krotov
 
     This file is part of CEdit.
 
@@ -1805,77 +1805,78 @@ BEGIN
 END dupLine;
 
 
-PROCEDURE exchange (text: tText; first, second: tLine);
-BEGIN
-    List._exchange(text, first, second);
-    Lines.modify(text.curLine);
-    modify(text);
-    UpDown(text, 0)
-END exchange;
-
-
-PROCEDURE upLine (text: tText);
-BEGIN
-	DEC(text.cursor.Y);
-	exchange(text, text.curLine.prev(tLine), text.curLine)
-END upLine;
-
-
-PROCEDURE downLine (text: tText);
-BEGIN
-	INC(text.cursor.Y);
-	exchange(text, text.curLine, text.curLine.next(tLine))
-END downLine;
-
-
 PROCEDURE MoveLines* (text: tText; down: BOOLEAN);
 VAR
-	last: tLine;
+	last, first, line: tLine;
 	selBeg, selEnd, temp: tPoint;
-	n, step: INTEGER;
+	step: INTEGER;
 	frw: BOOLEAN;
-	moveLine: PROCEDURE (text: tText);
 BEGIN
 	getSelect(text, selBeg, selEnd);
-	IF (selBeg.Y > 0) & ~down OR (selEnd.Y < text.count - 1) & down THEN
+	IF ((selBeg.Y > 0) & ~down OR (selEnd.Y < text.count - 1) & down) THEN
-		IF down THEN
+		modify(text);
-			step := -2;
+		step := ORD(down)*2 - 1;
-			moveLine := downLine
+		IF selBeg.Y # selEnd.Y THEN
-		ELSE
-			step := 2;
-			moveLine := upLine
-		END;
 			frw := (text.cursor.X = selEnd.X) & (text.cursor.Y = selEnd.Y);
-		IF selEnd.Y # selBeg.Y THEN
+
 			IF down # frw THEN
 				temp := text.cursor^;
 				SetPos(text, 0, text.select.Y);
 				setSelect(text);
 				text.select^ := temp
 			END;
+
+			ASSERT(selBeg.Y < selEnd.Y);
+
+			first := getLine(text, selBeg.Y);
 			last := getLine(text, selEnd.Y);
+
+			line := first;
+			Lines.modify(line);
+			REPEAT
+				NextLine(line);
+				Lines.modify(line)
+			UNTIL line = last;
+
+			IF down THEN
+				text.curLine := last.prev(tLine)
+			ELSE
+				text.curLine := first.next(tLine)
+			END;
 			selBeg.X := 0;
 			selEnd.X := last.length;
-			n := selEnd.Y - selBeg.Y + 1;
+			IF down THEN
-			WHILE n > 0 DO
+				last := last.next(tLine);
-				moveLine(text);
+				List._delete(text, last);
-				SetPos(text, 0, text.cursor.Y + step);
+				List._insert(text, first.prev, last)
-				DEC(n)
-			END
 			ELSE
-			moveLine(text)
+				first := first.prev(tLine);
+				List._delete(text, first);
+				List._insert(text, last, first)
 			END;
-
+			IF down THEN
-		IF frw THEN
 				temp := selBeg;
 				selBeg := selEnd;
-			selEnd := temp
+				selEnd := temp;
 			END;
-		step := step DIV 2;
+			SetPos(text, selBeg.X, selBeg.Y + step);
-		SetPos(text, selBeg.X, selBeg.Y - step);
 			setSelect(text);
 			text.select.X := selEnd.X;
-		text.select.Y := selEnd.Y - step
+			text.select.Y := selEnd.Y + step
+		ELSE
+			first := getLine(text, selBeg.Y);
+			Lines.modify(first);
+			IF down THEN
+				last := first.next(tLine)
+			ELSE
+				last := first.prev.prev(tLine)
+			END;
+			List._delete(text, first);
+			List._insert(text, last, first);
+			INC(text.cursor.Y, step);
+			INC(text.select.Y, step);
+			SetPos(text, text.cursor.X, text.cursor.Y)
+		END
 	END
 END MoveLines;
 
@@ -2541,18 +2542,6 @@ BEGIN
 END findNext;
 
 
-PROCEDURE rewrite (line: tLine; repl: ARRAY OF WCHAR; pos, n: INTEGER);
-BEGIN
-    IF n > 0 THEN
-        Lines.copy(line)
-    END;
-    WHILE n > 0 DO
-        DEC(n);
-        Lines.setChar(line, pos + n, repl[n])
-    END
-END rewrite;
-
-
 PROCEDURE replace* (text: tText; s: ARRAY OF WCHAR; n: INTEGER);
 VAR
     line: tLine;
@@ -2564,11 +2553,15 @@ BEGIN
         i := text.cursor.X;
         IF sLen > n THEN
             Lines.insert3(line, i, sLen - n)
+        ELSIF n > sLen THEN
+            Lines.delCharN(line, i, n - sLen)
+        ELSE (* n = sLen *)
+        	Lines.copy(line)
         END;
         SetPos(text, i + sLen, text.cursor.Y);
-        rewrite(line, s, i, sLen);
+	    WHILE sLen > 0 DO
-        IF n > sLen THEN
+	        DEC(sLen);
-            Lines.delCharN(line, text.cursor.X, n - sLen)
+	        Lines.setChar(line, i + sLen, s[sLen])
 	    END;
         resetSelect(text);
         Lines.modify(line);