[libgsystem] console: Further clarify escape codes
- From: Matthew Barnes <mbarnes src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [libgsystem] console: Further clarify escape codes
- Date: Wed, 15 Apr 2015 17:09:53 +0000 (UTC)
commit 2ae5d113a29a2aa883f5597bf575dcd6c82141bc
Author: Matthew Barnes <mbarnes redhat com>
Date: Wed Apr 15 13:08:02 2015 -0400
console: Further clarify escape codes
Found the flippin' manual.
src/gsystem-console.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/src/gsystem-console.c b/src/gsystem-console.c
index 46b48af..806d619 100644
--- a/src/gsystem-console.c
+++ b/src/gsystem-console.c
@@ -346,9 +346,12 @@ gs_console_begin_status_line (GSConsole *console,
out = gs_console_get_stdout ();
+ /* This uses private DEC escape codes, defined at:
+ * http://vt100.net/docs/vt220-rm/chapter4.html#S4.7 */
+
if (!console->in_status_line)
{
- /* See http://en.wikipedia.org/wiki/ANSI_escape_code, using the DEC codes */
+ /* Save Cursor (DECSC) - ESC 7 */
guint8 buf[3] = { (guint8)'\n', 0x1B, 0x37 };
if (!g_output_stream_write_all (out, buf, sizeof (buf), &bytes_written,
cancellable, error))
@@ -358,6 +361,7 @@ gs_console_begin_status_line (GSConsole *console,
}
{
+ /* Restore Cursor (DECRC) - ESC 8 */
guint8 buf[2] = { 0x1B, 0x38 };
if (!g_output_stream_write_all (out, buf, sizeof (buf), &bytes_written,
cancellable, error))
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