[hpoussin] 29271: Added history possibilities to right key See issue #2248 for more details.

Author: hpoussin
Date: Fri Sep 28 12:51:04 2007
New Revision: 29271

URL: http://svn.reactos.org/svn/reactos?rev=29271&view=rev
Log:
Added history possibilities to right key
See issue #2248 for more details.

Modified:
    trunk/reactos/base/shell/cmd/cmd.h
    trunk/reactos/base/shell/cmd/cmdinput.c
    trunk/reactos/base/shell/cmd/history.c

Modified: trunk/reactos/base/shell/cmd/cmd.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/shell/cmd/cmd.h?rev=2…
==============================================================================
--- trunk/reactos/base/shell/cmd/cmd.h (original)
+++ trunk/reactos/base/shell/cmd/cmd.h Fri Sep 28 12:51:04 2007
@@ -247,6 +247,7 @@
 
 /* Prototypes for HISTORY.C */
 #ifdef FEATURE_HISTORY
+LPCTSTR PeekHistory(INT);
 VOID History (INT, LPTSTR);/*add entries browse history*/
 VOID History_move_to_bottom(VOID);/*F3*/
 VOID InitHistory(VOID);

Modified: trunk/reactos/base/shell/cmd/cmdinput.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/shell/cmd/cmdinput.c?…
==============================================================================
--- trunk/reactos/base/shell/cmd/cmdinput.c (original)
+++ trunk/reactos/base/shell/cmd/cmdinput.c Fri Sep 28 12:51:04 2007
@@ -95,6 +95,9 @@
  *
  *    30-Apr-2004 (Filip Navara <xnavara(a)volny.cz>)
  *        Fixed problems when the screen was scrolled away.
+ *
+ *    28-September-2007 (Hervé Poussineau)
+ *        Added history possibilities to right key.
  */
 
 #include <precomp.h>
@@ -142,6 +145,9 @@
 #ifdef FEATURE_4NT_FILENAME_COMPLETION
 	TCHAR szPath[MAX_PATH];
 #endif
+#ifdef FEATURE_HISTORY
+	TCHAR PreviousChar;
+#endif
 
 	/* get screen size */
 	GetScreenSize (&maxx, &maxy);
@@ -508,6 +514,20 @@
 						curx++;
 					}
 				}
+#ifdef FEATURE_HISTORY
+				else
+				{
+					LPCTSTR last = PeekHistory(-1);
+					if (last && charcount < _tcslen (last))
+					{
+						PreviousChar = last[current];
+						ConOutChar(PreviousChar);
+						GetCursorXY(&curx, &cury);
+						str[current++] = PreviousChar;
+						charcount++;
+					}
+				}
+#endif
 				break;
 
 			default:

Modified: trunk/reactos/base/shell/cmd/history.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/shell/cmd/history.c?r…
==============================================================================
--- trunk/reactos/base/shell/cmd/history.c (original)
+++ trunk/reactos/base/shell/cmd/history.c Fri Sep 28 12:51:04 2007
@@ -215,45 +215,6 @@
 	size--;
 }
 
-
-#if 0
-static
-VOID add_before_last(LPTSTR string)
-{
-	LPHIST_ENTRY tmp,before,after;
-
-	/*delete first entry if maximum number of entries is reached*/
-	while(size>=max_size)
-		del(Top->prev);
-
-	while (_istspace(*string))
-		string++;
-
-	if (*string==_T('\0'))
-		return;
-
-	/*allocte entry and string*/
-	tmp=cmd_alloc(sizeof(HIST_ENTRY));
-	tmp->string=cmd_alloc((_tcslen(string)+1)*sizeof(TCHAR));
-	_tcscpy(tmp->string,string);
-
-	/*set links*/
-	before=Bottom->next;
-	after=before->next;
-
-	tmp->prev=before;
-	tmp->next=after;
-
-	after->prev=tmp;
-	before->next=tmp;
-
-	/*set new size*/
-	size++;
-
-
-}
-#endif/*0*/
-
 static
 VOID add_at_bottom(LPTSTR string)
 {
@@ -308,6 +269,42 @@
 
 }
 
+LPCTSTR PeekHistory(INT dir)
+{
+	LPHIST_ENTRY entry = curr_ptr;
+
+	if (dir == 0)
+		return NULL;
+
+	if (dir < 0)
+	{
+		/* key up */
+		if (entry->next == Top || entry == Top)
+		{
+#ifdef WRAP_HISTORY
+			entry = Bottom;
+#else
+			return NULL;
+#endif
+		}
+		entry = entry->next;
+	}
+	else
+	{
+		/* key down */
+		if (entry->next == Bottom || entry == Bottom)
+		{
+#ifdef WRAP_HISTORY
+			entry = Top;
+#else
+			return NULL;
+#endif
+		}
+		entry = entry->prev;
+	}
+
+	return entry->string;
+}
 
 VOID History (INT dir, LPTSTR commandline)
 {
@@ -371,116 +368,4 @@
 	}
 }
 
-
-
-
-
-
-#if 0
-
-LPTSTR history = NULL;	/*buffer to sotre all the lines*/
-LPTSTR lines[MAXLINES];	/*array of pointers to each line(entry)*/
-						/*located in history buffer*/
-
-INT curline = 0;		/*the last line recalled by user*/
-INT numlines = 0;		/*number of entries, included the last*/
-						/*empty one*/
-
-INT maxpos = 0;			/*index of last byte of last entry*/
-
-
-
-VOID History (INT dir, LPTSTR commandline)
-{
-
-	INT count;						/*used in for loops*/
-	INT length;						/*used in the same loops of count*/
-									/*both to make room when is full
-									either history or lines*/
-
-	/*first time History is called allocate mem*/
-	if (!history)
-	{
-		history = cmd_alloc (history_size * sizeof (TCHAR));
-		lines[0] = history;
-		history[0] = 0;
-	}
-
-	if (dir > 0)
-	{
-		/* next command */
-		if (curline < numlines)
-		{
-			curline++;
-		}
-
-		if (curline == numlines)
-		{
-			commandline[0] = 0;
-		}
-		else
-		{
-			_tcscpy (commandline, lines[curline]);
-		}
-	}
-	else if (dir < 0)
-	{
-		/* prev command */
-		if (curline > 0)
-		{
-			curline--;
-		}
-
-		_tcscpy (commandline, lines[curline]);
-	}
-	else
-	{
-		/* add to history */
-		/* remove oldest string until there's enough room for next one */
-		/* strlen (commandline) must be less than history_size! */
-		while ((maxpos + (INT)_tcslen (commandline) + 1 > history_size) || (numlines >=
MAXLINES))
-		{
-			length = _tcslen (lines[0]) + 1;
-
-			for (count = 0; count < maxpos && count + (lines[1] - lines[0]) <
history_size; count++)
-			{
-				history[count] = history[count + length];
-			}
-
-			maxpos -= length;
-
-			for (count = 0; count <= numlines && count < MAXLINES; count++)
-			{
-				lines[count] = lines[count + 1] - length;
-			}
-
-			numlines--;
-#ifdef DEBUG
-			ConOutPrintf (_T("Reduced size:  %ld lines\n"), numlines);
-
-			for (count = 0; count < numlines; count++)
-			{
-				ConOutPrintf (_T("%d: %s\n"), count, lines[count]);
-			}
-#endif
-		}
-
-		/*copy entry in the history bufer*/
-		_tcscpy (lines[numlines], commandline);
-		numlines++;
-
-		/*set last lines[numlines] pointer next the end of last, valid,
-		just setted entry (the two lines above)*/
-		lines[numlines] = lines[numlines - 1] + _tcslen (commandline) + 1;
-		maxpos += _tcslen (commandline) + 1;
-		/* last line, empty */
-
-		curline = numlines;
-	}
-
-	return;
-}
-
-#endif
-
-#endif //#if 0
+#endif //#if FEATURE_HISTORY