Error while getting cursor position in Pango

["Arjan J. Molenaar" <arjanmolenaar hetnet nl>]

Hi,

I have some problems with Pango's pango_layout_get_cursor_pos()
function. I try to find the cursor position in a line ended with a
newline ('\n') character. For some reason the call to
pango_layout_get_cursor_pos(). If the line is ended with a '\n' this
function is not able to find the correct cursor position and aborts
execution with the message:

(process:18459): ** ERROR **: file pango-layout.c: line 1667
(pango_layout_line_get_char_direction): should not be reached
aborting...
Trace/breakpoint trap (core dumped)


I have attached a demo program that triggers the error.

Regards,

Arjan

#include <pango/pango-layout.h>
#include <pango/pangoft2.h>

void
do_test (gchar *text)
{
	PangoContext *context;
	PangoLayout *layout;
	PangoRectangle sp, wp;
	gint i;

	g_print ("Checking string '%s' (len=%d)\n", text, strlen (text));
	context = pango_ft2_get_context (100, 100);

	layout = pango_layout_new (context);

	pango_layout_set_text (layout, text, -1);

	for (i = 0; i <= strlen (text); i++) {
		g_print ("Finding cursor pos %d\n", i);
		pango_layout_get_cursor_pos (layout, i, &sp, &wp);
	}
	g_object_unref (layout);
	g_object_unref (context);
}

int
main ()
{
	g_type_init ();

	do_test ("Text\ntext");
	do_test ("Newline\n");

	return 0;
}