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Add colour change checking, minor fixups

This commit is contained in:
Přemysl Eric Janouch 2020-09-13 23:32:54 +02:00
parent 15b630ba30
commit 632f88eeeb
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 39 additions and 9 deletions
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termtest.c
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@ -211,8 +211,9 @@ int main(int argc, char *argv[]) {
printf("\n");
}
// See tmux(1), TERMINFO EXTENSIONS. These are somewhat unusual,
// including them out of curiosity.
// For a comprehensive list of unusual terminfo entries, see tmux(1),
// user_caps(5), and comments in misc/terminfo.src. Looking for them
// here out of curiosity, all sequences are mostly standardised.
const char *Tc = tigetstr("Tc");
if (Tc && Tc != (char *)-1)
printf("Terminfo: tmux extension claims direct color.\n");
@ -226,11 +227,37 @@ int main(int argc, char *argv[]) {
for (int g = 255; g >= 192; g--) direct(':', 255, g, 0); printf(SGR0 "\n");
printf("-- Colour change\n");
// TODO:
// - terminfo
// - hardcoded visual check
// - see acolors.sh from xterm's vttests, it changes terminal colours
// (and urxvt passed that, at least apparently)
printf("Terminfo: can_change %d, initialize_color %d\n",
!!can_change, !!initialize_color);
// The response from urxvt is wrongly missing the colour number.
char *bright_red_save = comm(OSC "4;9;?" BEL, false);
if (!strncmp(bright_red_save, OSC "4;", 4)) {
char *copy = strdup(bright_red_save + 4);
*strpbrk(copy, BEL ST8 "\x1b") = 0;
printf("We have read colour contents from the terminal: %s\n", copy);
} else *bright_red_save = 0;
printf(CSI "0;38;5;9m" "Indexed" SGR0 " " CSI "1;31m" "Bold" SGR0 "\n");
printf("Press a key to stop.\n");
for (int r = 0; r < 255; r += 8) {
char buf[1000] = "";
snprintf(buf, sizeof buf, OSC "4;9;rgb:%02x/%02x/%02x" BEL, r, 0, 0);
if (*comm(buf, false)) break;
poll(NULL, 0, 50 /* delay */);
}
if (*bright_red_save)
comm(bright_red_save, false);
// Linux palette sequence, supported by e.g. pterm.
// We must take care to suffix it with an OSC terminator at least.
for (int r = 0; r < 255; r += 8) {
char buf[1000] = "";
snprintf(buf, sizeof buf, OSC "P9%02x%02x%02x", r, 0, 0);
if (*comm(buf, false)) break;
poll(NULL, 0, 50 /* delay */);
}
printf("\a\r");
printf("-- Bold and blink attributes\n");
bool bbc_supported = enter_bold_mode && enter_blink_mode
@ -292,6 +319,7 @@ int main(int argc, char *argv[]) {
printf("\n");
// There's no actual way of restoring this to what it was before.
// Terminfo "cnorm" at most undoes blinking in xterm.
comm(CSI "2 q", false);
printf("-- w3mimgdisplay\n");
@ -321,6 +349,9 @@ int main(int argc, char *argv[]) {
comm(CSI "4c" DCS "0;0;0;q??~~??~~??iTiTiT" ST, false);
printf("-- Mouse protocol\n");
// TODO: Inspect terminfo kmous, XM, xm.
// - We can say what protocol kmous expects, whether 1000 or 1006.
// - Sadly urxvt still has the 1000/1005 sequence there.
while (!ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) && ws.ws_col < 223) {
if (!*comm("Your terminal needs to be at least 223 columns wide.\n"
"Press a key once you've made it wide enough.\n", true))
@ -345,7 +376,7 @@ int main(int argc, char *argv[]) {
if (!strncmp(selection, OSC "52;", 5)) {
printf("We have received the selection from the terminal!" CSI "1m\n");
char *semi = strrchr(selection, ';');
*strpbrk(semi, BEL ST8) = 0;
*strpbrk(semi, BEL ST8 "\x1b") = 0;
FILE *fp = popen("base64 -d", "w");
fprintf(fp, "%s", semi + 1);
pclose(fp);
@ -367,7 +398,6 @@ int main(int argc, char *argv[]) {
// Let the user see the results when run outside an interactive shell.
comm("-- Finished\n", true);
// TODO: Look further than tmux(1) for unusual terminfo entries.
// atexit is broken in tcc -run, see https://savannah.nongnu.org/bugs/?56495
tty_atexit();