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csi: secondary DA: do not pretend we're xterm

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Previously, our secondary DA response indicated a) VT420, b) an XTerm
version number.

Now, we indicate VT220 (which corresponds to the primary DA response),
and we report foot's version number as MMmmpp. I.e major, minor and
patch versions, using two digits.

E.g. 1.4.2 is encoded as 010402
This commit is contained in:
Daniel Eklöf 2020-07-24 17:47:47 +02:00
parent cc60d3a670
commit 60984e7a24
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GPG key ID: 5BBD4992C116573F
3 changed files with 31 additions and 3 deletions
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18
csi.c
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@ -13,10 +13,11 @@
#define LOG_ENABLE_DBG 0
#include "log.h"
#include "grid.h"
#include "vt.h"
#include "selection.h"
#include "sixel.h"
#include "util.h"
#include "version.h"
#include "vt.h"
#define UNHANDLED() LOG_DBG("unhandled: %s", csi_as_string(term, final, -1))
#define UNHANDLED_SGR(idx) LOG_DBG("unhandled: %s", csi_as_string(term, 'm', idx))
@ -1414,9 +1415,22 @@ csi_dispatch(struct terminal *term, uint8_t final)
* xterm uses its version number. We use an xterm
* version number too, since e.g. Emacs uses this to
* determine level of support.
*
* We report ourselves as a VT220. This must be
* synchronized with the primary DA respons.
*
* Note: tertiary DA replies with "FOOT".
*/
term_to_slave(term, "\033[>41;347;0c", 12);
static_assert(FOOT_MAJOR < 100, "Major version must not exceed 99");
static_assert(FOOT_MINOR < 100, "Minor version must not exceed 99");
static_assert(FOOT_PATCH < 100, "Patch version must not exceed 99");
char reply[64];
snprintf(reply, sizeof(reply), "\033[>1;%02u%02u%02u;0c",
FOOT_MAJOR, FOOT_MINOR, FOOT_PATCH);
term_to_slave(term, reply, strlen(reply));
break;
case 'm':