Makes "cw" and "bw" act more like vim.

"cw" and "bw" now behave more like vim in very specific conditions. "cw"
and "bw" should now work as they do in vim when the cursor is on the
start of a paragraph before these commands are implemented.

Author: LinuxMage

src/vibreoffice.vbs

@@ -998,7 +998,7 @@ Function ProcessMovementKey(keyChar, Optional bExpand, Optional keyModifiers)
 
         ' For the case when the user enters "w" or "dw":
         Else
-            ' For "w", using gotoNextWord would mean that the cursor would not 
+            ' Note: For "w", using gotoNextWord would mean that the cursor would not 
             ' be moved to the next word when it involved moving down a line and 
             ' that line happened to begin with whitespace. It would also mean 
             ' that the cursor would not skip over lines that only contain 
@@ -1029,16 +1029,43 @@ Function ProcessMovementKey(keyChar, Optional bExpand, Optional keyModifiers)
     ElseIf keyChar = "b" or keyChar = "B" Then
         ' When the user enters "b", "cb", or "db":
 
-        ' The function gotoPreviousWord causes a lot of problems when trying 
+        ' Note: The function gotoPreviousWord causes a lot of problems when trying 
         ' to emulate vim behavior. The following method doesn't have to 
         ' account for as many special cases.
 
-        ' Moves the cursor to the start of the previous word or until an empty 
+        ' "b": Moves the cursor to the start of the previous word or until an empty 
         ' line is reached.
 
-        ' Move cursor to left in case cursor is already at the start 
-        ' of a word or on on an empty line. 
-        oTextCursor.goLeft(1, bExpand)
+        ' "db": Does same thing as "b" only it deletes everything between the 
+        ' orginal cursor position and the new cursor position. The exception to 
+        ' this is that if the original cursor position was at the start of a 
+        ' paragraph and the new cursor position is on a separate paragraph with 
+        ' at least two words then don't delete the new line char to the "left" 
+        ' of the original paragraph.
+
+        ' "dc": Does the same as "db" only the new line char described in "db" 
+        ' above is never deleted.
+
+
+        ' This variable is used to tell whether or not we need to make a 
+        ' distinction between "b", "cb", and "db".
+        dim dc_db as boolean
+
+        ' Move cursor to left in case cursor is already at the start of a word 
+        ' or on on an empty line. If cursor can move left and user enterd "dc" 
+        ' or "db" and the cursor was originally on the start of a paragraph 
+        ' then set dc_db to true and unselect the new line character separating 
+        ' the paragraphs. If cursor can't move left then there is no line above 
+        ' the current one and no need to make a distinction between "b", "cb", 
+        ' and "db".
+        dc_db = False
+        If oTextCursor.isStartOfParagraph() And oTextCursor.goLeft(1, bExpand) Then
+            If getSpecial() = "c" Or getSpecial() = "d" Then
+                dc_db = True
+                ' If all conditions above are met then unselect the \n char.
+                oTextCursor.collapseToStart()
+            End If
+        End If
 
         ' Stop looping when the cursor reaches the start of a word, an empty 
         ' line, or cannot be moved further (reaches start of file).
@@ -1048,6 +1075,30 @@ Function ProcessMovementKey(keyChar, Optional bExpand, Optional keyModifiers)
                 Exit Do
             End If
         Loop
+
+        If dc_db Then
+            ' Make a clone of oTextCursor called oTextCursor2 and use it to 
+            ' check if there are at least two words in the "new" paragraph. 
+            ' If there are <2 words then the loop will stop when the cursor 
+            ' cursor reaches the start of a paragraph. If there >=2 words then 
+            ' then the loop will stop when the cursor reaches the end of a word.
+            dim oTextCursor2
+            oTextCursor2 = getCursor().getText.createTextCursorByRange(oTextCursor)
+            Do Until oTextCursor2.isEndOfWord() Or oTextCursor2.isStartOfParagraph()
+                oTextCursor2.goLeft(1, bExpand)
+            Loop
+            ' If there are less than 2 words on the "new" paragraph then set 
+            ' oTextCursor to oTextCursor 2. This is because vim's behavior is 
+            ' to clear the "new" paragraph under these conditions.
+            If oTextCursor2.isStartOfParagraph() Then
+                oTextCursor = oTextCursor2
+                oTextCursor.gotoRange(oTextCursor.getStart(), bExpand)
+                ' If user entered "db" then reselect the \n char from before.
+                If getSpecial() = "d" Then
+                    oTextCursor.goRight(1, bExpand)
+                End If
+            End If
+        End If
     ElseIf keyChar = "e" Then
         ' When the user enters "e", "ce", or "de":
 
@@ -1058,6 +1109,7 @@ Function ProcessMovementKey(keyChar, Optional bExpand, Optional keyModifiers)
         ' Moves the cursor to the end of the next word or end of file if there 
         ' are no more words.
 
+
         ' Move cursor to right in case cursor is already at the end of a word.
         oTextCursor.goRight(1, bExpand)