static int lookup_colour(const VTermState *state, int palette, const long args[], int argcount, VTermColor *col, int *index)
{
switch(palette) {
case 2: // RGB mode - 3 args contain colour values directly
if(argcount < 3)
return argcount;
col->red = CSI_ARG(args[0]);
col->green = CSI_ARG(args[1]);
col->blue = CSI_ARG(args[2]);
return 3;
case 5: // XTerm 256-colour mode
if(index)
*index = CSI_ARG_OR(args[0], -1);
lookup_colour_palette(state, argcount ? CSI_ARG_OR(args[0], -1) : -1, col);
return argcount ? 1 : 0;
default:
DEBUG_LOG("Unrecognised colour palette %d\n", palette);
return 0;
}
}
static int parser_csi(const char *leader, const long args[], int argcount, const char *intermed, char command, void *user)
{
const char *name = NULL;
if(!leader && !intermed && command < 0x70)
name = name_csi_plain[command - 0x40];
else if(leader && streq(leader, "?") && !intermed) {
/* DEC */
switch(command) {
case 'h': name = "DECSM"; break;
case 'l': name = "DECRM"; break;
}
if(name)
leader = NULL;
}
if(!leader && !intermed && command < 0x70 && newline_csi_plain[command - 0x40])
printf("\n");
if(name)
printf("%s%s", special_begin, name);
else
printf("%sCSI", special_begin);
if(leader && leader[0])
printf(" %s", leader);
for(int i = 0; i < argcount; i++) {
printf(i ? "," : " ");
if(args[i] == CSI_ARG_MISSING)
printf("*");
else {
while(CSI_ARG_HAS_MORE(args[i]))
printf("%ld+", CSI_ARG(args[i++]));
printf("%ld", CSI_ARG(args[i]));
}
}
if(intermed && intermed[0])
printf(" %s", intermed);
if(name)
printf("%s", special_end);
else
printf(" %c%s", command, special_end);
return 1;
}
static void do_csi(VTerm *vt, char command)
{
#ifdef DEBUG_PARSER
printf("Parsed CSI args as:\n", arglen, args);
printf(" leader: %s\n", vt->parser.csi_leader);
for(int argi = 0; argi < vt->parser.csi_argi; argi++) {
printf(" %lu", CSI_ARG(vt->parser.csi_args[argi]));
if(!CSI_ARG_HAS_MORE(vt->parser.csi_args[argi]))
printf("\n");
printf(" intermed: %s\n", vt->parser.intermed);
}
#endif
if(vt->parser.callbacks && vt->parser.callbacks->csi)
if((*vt->parser.callbacks->csi)(
vt->parser.csi_leaderlen ? vt->parser.csi_leader : NULL,
vt->parser.csi_args,
vt->parser.csi_argi,
vt->parser.intermedlen ? vt->parser.intermed : NULL,
command,
vt->parser.cbdata))
return;
DEBUG_LOG("libvterm: Unhandled CSI %c\n", command);
}
