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csi: wip: parse the multi-cursor escape (CS > SPACE q)

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We do nothing with it yet
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Daniel Eklöf 2025-08-27 10:34:06 +02:00
parent ed7652db50
commit 5e0524bf99
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1 changed files with 132 additions and 1 deletions
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133
csi.c
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@ -11,7 +11,7 @@
#include <sys/timerfd.h>
#define LOG_MODULE "csi"
#define LOG_ENABLE_DBG 0
#define LOG_ENABLE_DBG 1
#include "log.h"
#include "char32.h"
#include "config.h"
@ -2225,6 +2225,137 @@ csi_dispatch(struct terminal *term, uint8_t final)
break; /* private[0] == '?' && private[1] == '$' */
case 0x203e: /* '> ' */
switch (final) {
case 'q': {
if (term->vt.params.idx == 0) {
LOG_WARN("multi-cursor: query support");
break;
}
const unsigned shape = vt_param_get(term, 0, 0);
switch (shape) {
case 0:
case 1:
case 2:
case 3:
case 29:
LOG_WARN("multi-cursor: %s",
shape == 0 ? "no cursor" :
shape == 1 ? "block cursor" :
shape == 2 ? "beam cursor" :
shape == 3 ? "underline cursor" : "main cursor");
for (size_t i = 1; i < term->vt.params.idx; i++) {
const unsigned coord_type = vt_param_get(term, i, 0);
const struct vt_param *param = &term->vt.params.v[i];
switch (coord_type) {
case 0:
LOG_WARN("multi-cursor: unimplemented: "
"coordinate relative to main cursor");
break;
case 2:{
const size_t pair_count = param->sub.idx / 2;
for (size_t j = 0; j < pair_count; j++) {
const unsigned row = param->sub.value[j * 2 + 0];
const unsigned col = param->sub.value[j * 2 + 1];
LOG_WARN("pair: row=%u, col=%u", row, col);
}
break;
}
case 4: {
if (param->sub.idx == 0) {
/* Special case, rectangle is the entire screen */
LOG_WARN("rectangle: all screen");
} else {
const size_t rect_count = param->sub.idx / 4;
for (size_t j = 0; j < rect_count; j++) {
const unsigned top = param->sub.value[j * 4 + 0];
const unsigned left = param->sub.value[j * 4 + 1];
const unsigned bottom = param->sub.value[j * 4 + 2];
const unsigned right = param->sub.value[j * 4 + 3];
LOG_WARN(
"rectangle top=%u, left=%u, bottom=%u, right=%u",
top, left, bottom, right);
}
}
break;
}
default:
LOG_WARN("multi-cursor: invalid coordinate type: %u", coord_type);
return;
}
}
break;
case 30:
case 40:
LOG_WARN("multi-cursor: change color of %s", shape == 30 ? "text under cursor" : "cursor");
const unsigned color_space = vt_param_get(term, 1, 0);
switch (color_space) {
case 0:
LOG_WARN("use main cursor colors");
break;
case 1:
LOG_WARN("special (reverse)");
break;
case 2: {
const struct vt_param *param = &term->vt.params.v[1];
if (param->sub.idx == 3) {
const uint8_t red = param->sub.value[0];
const uint8_t green = param->sub.value[1];
const uint8_t blue = param->sub.value[2];
LOG_WARN("red=%hhu, green=%hhu, blue=%hhu", red, green, blue);
}
break;
}
case 5: {
const struct vt_param *param = &term->vt.params.v[1];
if (param->sub.idx == 1) {
const unsigned color_index = param->sub.value[0];
LOG_WARN("indexed color=%u", color_index);
}
break;
}
default:
LOG_WARN("multi-cursor: invalid color space: %u", color_space);
return;
}
break;
case 100:
LOG_WARN("multi-cursor: query extra cursors");
break;
case 101:
LOG_WARN("multi-cursor: query extra cursors' color");
break;
default:
LOG_WARN("multi-cursor: invalid shape/color command: %u", shape);
return;
}
break;
}
default:
UNHANDLED();
break;
}
break; /* private[0] == '>' && private[1] == ' ' */
default:
UNHANDLED();
break;