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Add support for OSC 8 hyperlinks (a VTE extension now supported by other

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terminals such as iTerm2). Originally written by me then extended and
completed by first Will Noble and later Jeff Chiang. GitHub issues 911,
2621, 2890, 3240.
This commit is contained in:
nicm
2022-06-30 09:55:53 +00:00
parent b22edcf3a5
commit cdacc12ce3
15 changed files with 432 additions and 48 deletions
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45
input.c
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@ -135,6 +135,7 @@ static void input_set_state(struct input_ctx *,
static void input_reset_cell(struct input_ctx *);
static void input_osc_4(struct input_ctx *, const char *);
static void input_osc_8(struct input_ctx *, const char *);
static void input_osc_10(struct input_ctx *, const char *);
static void input_osc_11(struct input_ctx *, const char *);
static void input_osc_12(struct input_ctx *, const char *);
@ -2318,6 +2319,9 @@ input_exit_osc(struct input_ctx *ictx)
}
}
break;
case 8:
input_osc_8(ictx, p);
break;
case 10:
input_osc_10(ictx, p);
break;
@ -2562,6 +2566,47 @@ input_osc_4(struct input_ctx *ictx, const char *p)
free(copy);
}
/* Handle the OSC 8 sequence for embedding hyperlinks. */
static void
input_osc_8(struct input_ctx *ictx, const char *p)
{
struct hyperlinks *hl = ictx->ctx.s->hyperlinks;
struct grid_cell *gc = &ictx->cell.cell;
const char *start, *end, *uri;
char *id = NULL;
for (start = p; (end = strpbrk(start, ":;")) != NULL; start = end + 1) {
if (end - start >= 4 && strncmp(start, "id=", 3) == 0) {
if (id != NULL)
goto bad;
id = xstrndup(start + 3, end - start - 3);
}
/* The first ; is the end of parameters and start of the URI. */
if (*end == ';')
break;
}
if (end == NULL || *end != ';')
goto bad;
uri = end + 1;
if (*uri == '\0') {
gc->link = 0;
free(id);
return;
}
gc->link = hyperlinks_put(hl, uri, id);
if (id == NULL)
log_debug("hyperlink (anonymous) %s = %u", uri, gc->link);
else
log_debug("hyperlink (id=%s) %s = %u", id, uri, gc->link);
free(id);
return;
bad:
log_debug("bad OSC 8 %s", p);
free(id);
}
/* Handle the OSC 10 sequence for setting and querying foreground colour. */
static void
input_osc_10(struct input_ctx *ictx, const char *p)