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Fix clear issue which lost C and A osc133 markers. Several cleanups.

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This commit is contained in:
Michael Grant
2026-10-03 01:13:01 +01:00
parent 0da1c84c53
commit 1632bbe8ce
3 changed files with 348 additions and 105 deletions
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111
input.c
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@@ -95,6 +95,14 @@ struct input_param {
};
};
/* Saved OSC 133 output marker. */
struct input_osc_133_ctx {
int running;
u_int start;
u_int col;
u_int collected;
};
/* Input parser context. */
struct input_ctx {
struct window_pane *wp;
@@ -173,6 +181,9 @@ static void input_osc_110(struct input_ctx *, const char *);
static void input_osc_111(struct input_ctx *, const char *);
static void input_osc_112(struct input_ctx *, const char *);
static void input_osc_133(struct input_ctx *, const char *);
static struct input_osc_133_ctx input_osc_133_save_marker(struct input_ctx *);
static void input_osc_133_restore_marker(struct input_ctx *,
const struct input_osc_133_ctx *);
/* Transition entry/exit handlers. */
static void input_clear(struct input_ctx *);
@@ -1466,6 +1477,7 @@ input_csi_dispatch(struct input_ctx *ictx)
struct screen *s = sctx->s;
const struct input_table_entry *entry;
struct options *oo;
struct input_osc_133_ctx osc133 = {0};
int i, n, m, ek, set, p;
u_int cx, bg = ictx->cell.cell.bg;
@@ -1739,13 +1751,19 @@ input_csi_dispatch(struct input_ctx *ictx)
case -1:
break;
case 0:
/* Erasing to the end clears the whole screen at 0,0. */
if (s->cx == 0 && s->cy == 0)
osc133 = input_osc_133_save_marker(ictx);
screen_write_clearendofscreen(sctx, bg);
input_osc_133_restore_marker(ictx, &osc133);
break;
case 1:
screen_write_clearstartofscreen(sctx, bg);
break;
case 2:
osc133 = input_osc_133_save_marker(ictx);
screen_write_clearscreen(sctx, bg);
input_osc_133_restore_marker(ictx, &osc133);
break;
case 3:
if (input_get(ictx, 1, 0, 0) == 0) {
@@ -3278,6 +3296,77 @@ input_osc_133_secondary_prompt(const char *p)
return (0);
}
/* Record the first primary or secondary prompt marker on a line. */
static void
input_osc_133_mark_prompt(struct grid_line *gl, u_int col, const char *p)
{
if (gl == NULL || gl->flags &
(GRID_LINE_START_PROMPT|GRID_LINE_SECOND_PROMPT))
return;
gl->osc133_data.prompt_col = col;
if (input_osc_133_secondary_prompt(p))
gl->flags |= GRID_LINE_SECOND_PROMPT;
else
gl->flags |= GRID_LINE_START_PROMPT;
}
/* Save the running command's output start before clearing the screen. */
static struct input_osc_133_ctx
input_osc_133_save_marker(struct input_ctx *ictx)
{
struct window_pane *wp = ictx->wp;
struct screen *s = ictx->ctx.s;
struct grid *gd = s->grid;
struct grid_line *gl;
struct input_osc_133_ctx ctx = {0};
u_int y;
if (wp == NULL || s != &wp->base || SCREEN_IS_ALTERNATE(s) ||
(~wp->flags & PANE_CMDRUNNING))
return (ctx);
ctx.running = 1;
ctx.start = UINT_MAX;
ctx.collected = gd->scroll_collected;
for (y = gd->hsize + gd->sy; y > 0; y--) {
gl = grid_get_line(gd, y - 1);
if ((gl->flags & GRID_LINE_START_OUTPUT) &&
(~gl->flags & GRID_LINE_END_OUTPUT ||
gl->osc133_data.out_end_col < gl->osc133_data.out_start_col) &&
(~gl->flags & GRID_LINE_START_PROMPT ||
gl->osc133_data.prompt_col <= gl->osc133_data.out_start_col)) {
ctx.start = y - 1;
ctx.col = gl->osc133_data.out_start_col;
break;
}
if (gl->flags & (GRID_LINE_START_PROMPT|GRID_LINE_END_OUTPUT))
break;
}
return (ctx);
}
/* Restore the running command's output start if a screen clear removed it. */
static void
input_osc_133_restore_marker(struct input_ctx *ictx,
const struct input_osc_133_ctx *ctx)
{
struct grid *gd = ictx->ctx.s->grid;
struct grid_line *gl;
u_int collected;
if (!ctx->running)
return;
collected = gd->scroll_collected - ctx->collected;
if (ctx->start != UINT_MAX && ctx->start >= collected) {
gl = grid_get_line(gd, ctx->start - collected);
if ((gl->flags & GRID_LINE_START_OUTPUT) &&
gl->osc133_data.out_start_col == ctx->col)
return;
}
gl = grid_get_line(gd, gd->hsize);
gl->flags |= GRID_LINE_START_OUTPUT;
gl->osc133_data.out_start_col = 0;
}
/* Handle the OSC 133 sequence. */
static void
input_osc_133(struct input_ctx *ictx, const char *p)
@@ -3295,32 +3384,14 @@ input_osc_133(struct input_ctx *ictx, const char *p)
switch (*p) {
case 'A':
case 'N':
if (gl != NULL) {
if (!(gl->flags & (GRID_LINE_START_PROMPT|
GRID_LINE_SECOND_PROMPT))) {
gl->osc133_data.prompt_col = s->cx;
if (input_osc_133_secondary_prompt(p))
gl->flags |= GRID_LINE_SECOND_PROMPT;
else
gl->flags |= GRID_LINE_START_PROMPT;
}
}
input_osc_133_mark_prompt(gl, s->cx, p);
if (wp != NULL) {
wp->last_prompt_time = time(NULL);
events_fire_pane("pane-shell-prompt", wp);
}
break;
case 'P':
if (gl != NULL) {
if (!(gl->flags & (GRID_LINE_START_PROMPT|
GRID_LINE_SECOND_PROMPT))) {
gl->osc133_data.prompt_col = s->cx;
if (input_osc_133_secondary_prompt(p))
gl->flags |= GRID_LINE_SECOND_PROMPT;
else
gl->flags |= GRID_LINE_START_PROMPT;
}
}
input_osc_133_mark_prompt(gl, s->cx, p);
break;
case 'B':
case 'I':