Add DECRQSS SGR/DECSCUSR checking
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5427dfb428
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35
termtest.c
35
termtest.c
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@ -157,6 +157,14 @@ static void test_mouse(int mode) {
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comm("Waiting for button up events, press a key if hanging.\n", true);
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}
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// parse_decrpss checks a DECRPSS sequence and cuts out the inner part.
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// Returns NULL if it fails to validate.
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static char *parse_decrpss(char *resp) {
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if (strncmp(resp, DCS "1$r", 5)) return NULL;
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*strpbrk(resp + 5, BEL ST8 "\x1b") = 0;
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return resp + 5;
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}
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// colour prints a cell with the given indexed colour as a background.
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static void colour(int n) {
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n > 7 ? printf(CSI "48;5;%dm ", n) : printf(CSI "%dm ", 40 + n);
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@ -220,6 +228,26 @@ int main(int argc, char *argv[]) {
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if (Tc && Tc != (char *)-1)
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printf("Terminfo: tmux extension claims direct color.\n");
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// Check the confusion, see https://gist.github.com/XVilka/8346728
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char *sgr5_semi =
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parse_decrpss(comm(CSI "48;5;160m" DCS "$qm" ST "\r", false));
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char *sgr5_colon =
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parse_decrpss(comm(CSI "48:5:161m" DCS "$qm" ST "\r", false));
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char *sgr2_colon =
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parse_decrpss(comm(CSI "48:2::255:0:0m" DCS "$qm" ST "\r", false));
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char *sgr2_double =
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parse_decrpss(comm(CSI "48:2::0:255:0m" DCS "$qm" ST "\r", false));
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comm(SGR0, false);
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if (sgr5_semi)
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printf("SGR 160, semicolon: %s\n", sgr5_semi);
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if (sgr5_colon)
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printf("SGR 161, colon: %s\n", sgr5_colon);
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if (sgr2_colon)
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printf("SGR #ff0000, colon: %s\n", sgr2_colon);
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if (sgr2_double)
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printf("SGR #00ff00, double colon: %s\n", sgr2_double);
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for (int n = 0; n < 8; n++) colour(n); printf(SGR0 "\n");
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for (int n = 8; n < 16; n++) colour(n); printf(SGR0 "\n");
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for (int n = 232; n < 256; n++) colour(n); printf(SGR0 "\n");
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@ -254,14 +282,13 @@ int main(int argc, char *argv[]) {
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comm(OSC "104;9" BEL, false);
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// Linux palette sequence, supported by e.g. pterm.
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// We must take care to suffix it with an OSC terminator at least.
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for (int r = 0; r < 255; r += 8) {
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char buf[1000] = "";
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snprintf(buf, sizeof buf, OSC "P9%02x%02x%02x", r, 0, 0);
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if (*comm(buf, false)) break;
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poll(NULL, 0, 50 /* delay */);
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}
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printf("\a\r");
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comm("\a\r", false); // Take care of unsupporting terminals.
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printf("-- Bold and blink attributes\n");
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bool bbc_supported = enter_bold_mode && enter_blink_mode
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@ -316,13 +343,15 @@ int main(int argc, char *argv[]) {
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printf("Terminfo: found tmux extension for setting.\n");
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if (Se && Se != (char*)-1)
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printf("Terminfo: found tmux extension for resetting.\n");
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if (parse_decrpss(comm(DCS "$q q" ST "\r", false)))
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printf("DECRQSS told us about cursor appearance!\n");
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comm(CSI "5 q" "Blinking (press a key): ", true);
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printf("\n");
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comm(CSI "6 q" "Steady (press a key): ", true);
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printf("\n");
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// There's no actual way of restoring this to what it was before.
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// There's no widely supported way of restoring this to what it was before.
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// Terminfo "cnorm" at most undoes blinking in xterm.
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comm(CSI "2 q", false);
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