From 8f1e8ccda6f7c4bd1c3a0b2d0494dc55edaf2ad7 Mon Sep 17 00:00:00 2001
From: Don Ho <don.h@free.fr>
Date: Wed, 5 Dec 2012 00:10:22 +0000
Subject: [PATCH] [NEW_FEATURE] Add Remove empty lines feature.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@991 f5eea248-9336-0410-98b8-ebc06183d4e3
---
 PowerEditor/src/Notepad_plus.cpp | 19 +++++++++++++++----
 PowerEditor/src/Notepad_plus.rc  |  2 ++
 PowerEditor/src/NppCommands.cpp  | 12 ++++++++++++
 PowerEditor/src/menuCmdID.h      |  2 ++
 4 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/PowerEditor/src/Notepad_plus.cpp b/PowerEditor/src/Notepad_plus.cpp
index 7c81d93a..0467aba7 100644
--- a/PowerEditor/src/Notepad_plus.cpp
+++ b/PowerEditor/src/Notepad_plus.cpp
@@ -1236,17 +1236,28 @@ void Notepad_plus::removeEmptyLine(bool isBlankContained)
 	FindOption env;
 	if (isBlankContained)
 	{
-		env._str2Search = TEXT("\r\n");
+		env._str2Search = TEXT("^[\\t ]*$(\\r\\n|\\r|\\n)");
 	}
 	else
 	{
-		env._str2Search = TEXT("^$");
+		env._str2Search = TEXT("^$(\\r\\n|\\r|\\n)");
 	}
 	env._str4Replace = TEXT("");
-    env._searchType = FindExtended;//FindRegex;
-	//env._doMarkLine = true;
+    env._searchType = FindRegex;
 	
 	_findReplaceDlg.processAll(ProcessReplaceAll, &env, true);
+
+
+	// remove the last line if it's an empty line.
+	if (isBlankContained)
+	{
+		env._str2Search = TEXT("(\\r\\n|\\r|\\n)^[\\t ]*$");
+	}
+	else
+	{
+		env._str2Search = TEXT("(\\r\\n|\\r|\\n)^$");
+	}
+	_findReplaceDlg.processAll(ProcessReplaceAll, &env, true);
 }
 
 void Notepad_plus::getMatchedFileNames(const TCHAR *dir, const vector<generic_string> & patterns, vector<generic_string> & fileNames, bool isRecursive, bool isInHiddenDir)
diff --git a/PowerEditor/src/Notepad_plus.rc b/PowerEditor/src/Notepad_plus.rc
index 084ab3fd..e113ca69 100644
--- a/PowerEditor/src/Notepad_plus.rc
+++ b/PowerEditor/src/Notepad_plus.rc
@@ -251,6 +251,8 @@ BEGIN
             MENUITEM "Join Lines",                IDM_EDIT_JOIN_LINES
             MENUITEM "Move Up Current Line",      IDM_EDIT_LINE_UP
             MENUITEM "Move Down Current Line",    IDM_EDIT_LINE_DOWN
+			MENUITEM "Remove Empty Lines",        IDM_EDIT_REMOVEEMPTYLINES
+			MENUITEM "Remove Empty Lines (Containing Blank characters)",    IDM_EDIT_REMOVEEMPTYLINESWITHBLANK
         END
         POPUP "Comment/Uncomment"
         BEGIN
diff --git a/PowerEditor/src/NppCommands.cpp b/PowerEditor/src/NppCommands.cpp
index b04f90c4..00c8a9ac 100644
--- a/PowerEditor/src/NppCommands.cpp
+++ b/PowerEditor/src/NppCommands.cpp
@@ -836,6 +836,18 @@ void Notepad_plus::command(int id)
 			_pEditView->currentLinesDown();
 			break;
 
+		case IDM_EDIT_REMOVEEMPTYLINES:
+			_pEditView->execute(SCI_BEGINUNDOACTION);
+			removeEmptyLine(false);
+			_pEditView->execute(SCI_ENDUNDOACTION);
+			break;
+
+		case IDM_EDIT_REMOVEEMPTYLINESWITHBLANK:
+			_pEditView->execute(SCI_BEGINUNDOACTION);
+			removeEmptyLine(true);
+			_pEditView->execute(SCI_ENDUNDOACTION);
+			break;
+
 		case IDM_EDIT_UPPERCASE:
             _pEditView->convertSelectedTextToUpperCase();
 			break;
diff --git a/PowerEditor/src/menuCmdID.h b/PowerEditor/src/menuCmdID.h
index 1dff58b8..d5537bd3 100644
--- a/PowerEditor/src/menuCmdID.h
+++ b/PowerEditor/src/menuCmdID.h
@@ -73,6 +73,8 @@
     #define    IDM_EDIT_LINE_DOWN                   (IDM_EDIT + 15)
     #define    IDM_EDIT_UPPERCASE                   (IDM_EDIT + 16)
     #define    IDM_EDIT_LOWERCASE                   (IDM_EDIT + 17)
+	#define    IDM_EDIT_REMOVEEMPTYLINES            (IDM_EDIT + 55)
+	#define    IDM_EDIT_REMOVEEMPTYLINESWITHBLANK   (IDM_EDIT + 56)
 
 // Menu macro
     #define    IDM_MACRO_STARTRECORDINGMACRO        (IDM_EDIT + 18)