From 408f8311dd071924d62ae10d0078e595e9137a9e Mon Sep 17 00:00:00 2001
From: Robin Haberkorn <robin.haberkorn@googlemail.com>
Date: Wed, 7 Nov 2012 08:35:16 +0100
Subject: fixed "-" processing and improved C command, added R command

---
 main.cpp   |  6 +++---
 parser.cpp | 16 +++++++++++++---
 parser.h   |  2 ++
 sciteco.h  |  2 +-
 4 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/main.cpp b/main.cpp
index 452b9a8..f17ef1b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -40,11 +40,11 @@ message_display(GtkMessageType type, const gchar *fmt, ...)
 	gtk_label_set_text(GTK_LABEL(message_widget), buf);
 }
 
-void
+sptr_t
 editor_msg(unsigned int iMessage, uptr_t wParam, sptr_t lParam)
 {
-	scintilla_send_message(SCINTILLA(editor_widget),
-			       iMessage, wParam, lParam);
+	return scintilla_send_message(SCINTILLA(editor_widget),
+				      iMessage, wParam, lParam);
 }
 
 static gboolean
diff --git a/parser.cpp b/parser.cpp
index 6c92bc2..7978962 100644
--- a/parser.cpp
+++ b/parser.cpp
@@ -73,6 +73,14 @@ StateStart::StateStart() : State()
 	transitions['\v']	= this;
 }
 
+void
+StateStart::move(gint64 n)
+{
+	sptr_t pos = editor_msg(SCI_GETCURRENTPOS);
+	editor_msg(SCI_GOTOPOS, pos + n);
+	undo.push_msg(SCI_GOTOPOS, pos);
+}
+
 State *
 StateStart::custom(gchar chr)
 {
@@ -103,7 +111,7 @@ StateStart::custom(gchar chr)
 		expressions.push_calc(Expressions::OP_ADD);
 		break;
 	case '-':
-		if (!expressions.args() &&
+		if (!expressions.args() ||
 		    expressions.peek_num() == G_MAXINT64)
 			expressions.set_num_sign(-expressions.num_sign);
 		else
@@ -133,8 +141,10 @@ StateStart::custom(gchar chr)
 	 * commands
 	 */
 	case 'C':
-		editor_msg(SCI_CHARRIGHT);
-		undo.push_msg(SCI_CHARLEFT);
+		move(expressions.pop_num_calc());
+		break;
+	case 'R':
+		move(-expressions.pop_num_calc());
 		break;
 	case '=':
 		message_display(GTK_MESSAGE_OTHER, "%" G_GINT64_FORMAT,
diff --git a/parser.h b/parser.h
index 11a6d56..9cef0f6 100644
--- a/parser.h
+++ b/parser.h
@@ -39,6 +39,8 @@ class StateStart : public State {
 public:
 	StateStart();
 
+	void move(gint64 n);
+
 	State *custom(gchar chr);
 };
 
diff --git a/sciteco.h b/sciteco.h
index 3d5b360..49963c4 100644
--- a/sciteco.h
+++ b/sciteco.h
@@ -18,7 +18,7 @@ void message_display(GtkMessageType type, const gchar *fmt, ...);
 void cmdline_keypress(gchar key);
 void cmdline_display(const gchar *cmdline);
 
-void editor_msg(unsigned int iMessage, uptr_t wParam = 0, sptr_t lParam = 0);
+sptr_t editor_msg(unsigned int iMessage, uptr_t wParam = 0, sptr_t lParam = 0);
 
 gboolean macro_execute(const gchar *macro);
 
-- 
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