From 5b7d419b1d05fbc1f2bf4df1a19ed625c714d89a Mon Sep 17 00:00:00 2001
From: Renaud Fivet <renaud.fivet@gmail.com>
Date: Wed, 22 Mar 2017 14:18:29 +0800
Subject: [PATCH] Add comments clarifying $overlap and $target

---
 basic.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/basic.h b/basic.h
index a3aab55..205cbe9 100644
--- a/basic.h
+++ b/basic.h
@@ -6,7 +6,7 @@
 #include "retcode.h"
 
 /*
-** $overlap is the size of the line overlap when doing page forw/back
+** $overlap is the size of the line overlap when kbd calls page forw/back
 ** if 0, page will move by 2/3 of the window size (1/3 page overlap)
 ** default to 0
 */
@@ -14,7 +14,8 @@
 extern int overlap ;		/* line overlap in forw/back page	*/
 
 
-extern int curgoal ;		/* Goal for C-P, C-N			*/
+/* $target (== curgoal) is the column target when doing line move */
+extern int curgoal ;		/* Goal for C-P previous-line, C-N next-line */
 
 
 boolean gotobol( int f, int n) ;