[gtksourceview/wip/chergert/fix-190: 3/3] view: fix move-words when boundaries are juxtapose

[Christian Hergert <chergert src gnome org>]

commit 1ee1c620acb58d3e9b348a715e2244e82c6369a7
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jul 28 15:09:02 2021 -0700

    view: fix move-words when boundaries are juxtapose
    
    If we have words to move that are right next to each other, then we need
    to special case our boundary checks as well as our mark gravity so they
    do not move when deleting/inserting words.
    
    Fixes #190

 gtksourceview/gtksourceview.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/gtksourceview/gtksourceview.c b/gtksourceview/gtksourceview.c
index 9fd57394..3bbd676c 100644
--- a/gtksourceview/gtksourceview.c
+++ b/gtksourceview/gtksourceview.c
@@ -3673,7 +3673,8 @@ gtk_source_view_move_words (GtkSourceView *view,
        }
 
        if (gtk_text_iter_in_range (&ns, &s, &e) ||
-           gtk_text_iter_in_range (&ne, &s, &e))
+           (!gtk_text_iter_equal (&s, &ne) &&
+            gtk_text_iter_in_range (&ne, &s, &e)))
        {
                return;
        }
@@ -3683,8 +3684,8 @@ gtk_source_view_move_words (GtkSourceView *view,
 
        gtk_text_buffer_begin_user_action (buf);
 
-       nsmark = gtk_text_buffer_create_mark (buf, NULL, &ns, TRUE);
-       nemark = gtk_text_buffer_create_mark (buf, NULL, &ne, FALSE);
+       nsmark = gtk_text_buffer_create_mark (buf, NULL, &ns, step < 0);
+       nemark = gtk_text_buffer_create_mark (buf, NULL, &ne, step < 0);
 
        gtk_text_buffer_delete (buf, &s, &e);
        gtk_text_buffer_insert (buf, &s, new_text, -1);