From 91242b8dc8ae39add836c730d6e77d44222bdde3 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Thu, 3 Oct 2019 22:20:05 +0200
Subject: Fix run determination when inserting text

---
 libstorycode/gtk/gtknarrativeview.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libstorycode/gtk/gtknarrativeview.c b/libstorycode/gtk/gtknarrativeview.c
index bb549d4..b7571f1 100644
--- a/libstorycode/gtk/gtknarrativeview.c
+++ b/libstorycode/gtk/gtknarrativeview.c
@@ -804,8 +804,9 @@ static void insert_text_in_paragraph(struct narrative_item *item, size_t offs,
 
 	pos = 0;
 	for ( run=0; run<item->n_runs; run++ ) {
-		pos += strlen(item->runs[run].text);
-		if ( pos > offs ) break;
+		size_t npos = pos + strlen(item->runs[run].text);
+		if ( npos >= offs ) break;
+		pos = npos;
 	}
 	offs -= pos;
 
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