From bde31245331faa732bfedd7a1ae77764ea27ecd5 Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Sun, 22 Mar 2020 23:50:27 +0900
Subject: [PATCH] [qwaq] Fix some more formatLine cases

I think this is all of them. Scrolling around in a file, including
having the end of file visible in the window, seems to work well.
---
 ruamoko/qwaq/qwaq-curses.c        | 2 +-
 ruamoko/qwaq/qwaq-editbuffer-bi.c | 8 +++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/ruamoko/qwaq/qwaq-curses.c b/ruamoko/qwaq/qwaq-curses.c
index 3306af584..02368edc8 100644
--- a/ruamoko/qwaq/qwaq-curses.c
+++ b/ruamoko/qwaq/qwaq-curses.c
@@ -152,7 +152,7 @@ get_window (qwaq_resources_t *res, const char *name, int handle)
 	window_t   *window = window_get (res, handle);
 
 	if (!window || !window->win) {
-		PR_RunError (res->pr, "invalid window passed to %s", name + 3);
+		PR_RunError (res->pr, "invalid window passed to %s", name + 5);
 	}
 	return window;
 }
diff --git a/ruamoko/qwaq/qwaq-editbuffer-bi.c b/ruamoko/qwaq/qwaq-editbuffer-bi.c
index 70bb64fa5..2f3f560e9 100644
--- a/ruamoko/qwaq/qwaq-editbuffer-bi.c
+++ b/ruamoko/qwaq/qwaq-editbuffer-bi.c
@@ -469,10 +469,12 @@ formatLine (txtbuffer_t *buffer, unsigned linePtr, unsigned xpos,
 		ptr++;
 	}
 	col = ptr >= sels && ptr < sele ? cols : coln;
-	while (xpos < pos && length-- > 0) {
+	while (xpos < pos && length > 0) {
 		*dst++ = col | ' ';
+		length--;
+		xpos++;
 	}
-	while (length > 0) {
+	while (length > 0 && ptr < buffer->textSize) {
 		col = ptr >= sels && ptr < sele ? cols : coln;
 		c = getChar (buffer, ptr++);
 		if (c == '\n') {
@@ -489,7 +491,7 @@ formatLine (txtbuffer_t *buffer, unsigned linePtr, unsigned xpos,
 			length--;
 		}
 	}
-	while (c != '\n') {
+	while (c != '\n' && ptr < buffer->textSize) {
 		c = getChar (buffer, ptr++);
 	}
 	col = ptr >= sels && ptr < sele ? cols : coln;