Look for setrgbf and setrgbb terminfo extensions for RGB colour. This is

the most reasonable of the various (some bizarre) suggestions for
capabilities.

1 files changed, 20 insertions, 0 deletions

diff --git a/tty-term.c b/tty-term.c
index d1142ad2..38829bdd 100644
--- a/tty-term.c
+++ b/tty-term.c
@@ -242,6 +242,8 @@ static const struct tty_term_code_entry tty_term_codes[] = {
 	[TTYC_SE] = { TTYCODE_STRING, "Se" },
 	[TTYC_SETAB] = { TTYCODE_STRING, "setab" },
 	[TTYC_SETAF] = { TTYCODE_STRING, "setaf" },
+	[TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" },
+	[TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" },
 	[TTYC_SGR0] = { TTYCODE_STRING, "sgr0" },
 	[TTYC_SITM] = { TTYCODE_STRING, "sitm" },
 	[TTYC_SMACS] = { TTYCODE_STRING, "smacs" },
@@ -521,6 +523,18 @@ tty_term_find(char *name, int fd, char **cause)
 		code->type = TTYCODE_STRING;
 	}
 
+	/* On terminals with RGB colour (TC), fill in setrgbf and setrgbb. */
+	if (tty_term_flag(term, TTYC_TC) &&
+	    !tty_term_has(term, TTYC_SETRGBF) &&
+	    !tty_term_has(term, TTYC_SETRGBB)) {
+		code = &term->codes[TTYC_SETRGBF];
+		code->value.string = xstrdup("\033[38;2;%p1%d;%p2%d;%p3%dm");
+		code->type = TTYCODE_STRING;
+		code = &term->codes[TTYC_SETRGBB];
+		code->value.string = xstrdup("\033[48;2;%p1%d;%p2%d;%p3%dm");
+		code->type = TTYCODE_STRING;
+	}
+
 	return (term);
 
 error:
@@ -577,6 +591,12 @@ tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b)
 }
 
 const char *
+tty_term_string3(struct tty_term *term, enum tty_code_code code, int a, int b, int c)
+{
+	return (tparm((char *) tty_term_string(term, code), a, b, c));
+}
+
+const char *
 tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a)
 {
 	return (tparm((char *) tty_term_string(term, code), a));