termptyesc: handle empty CSI SRG 38/48

+ tests

src/bin/termptyesc.c

@@ -1069,8 +1069,9 @@ _handle_esc_csi_color_set(Termpty *ty, Eina_Unicode **ptr,
               switch (arg)
                 {
                  case -ESC_ARG_ERROR:
+                    EINA_FALLTHROUGH;
+                 case -ESC_ARG_NO_VALUE:
                     return;
-                   /* TODO: -ESC_ARG_NO_VALUE */
                  case 1:
                     ty->termstate.att.fg256 = 0;
                     ty->termstate.att.fg = COL_INVIS;
@@ -1140,8 +1141,9 @@ _handle_esc_csi_color_set(Termpty *ty, Eina_Unicode **ptr,
               switch (arg)
                 {
                  case -ESC_ARG_ERROR:
+                    EINA_FALLTHROUGH;
+                 case -ESC_ARG_NO_VALUE:
                     return;
-                   /* TODO: -ESC_ARG_NO_VALUE */
                  case 1:
                     ty->termstate.att.bg256 = 0;
                     ty->termstate.att.bg = COL_INVIS;

tests/csi-38-no-value.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+
+# clear screen
+printf '\033[2J'
+
+# fill space with E
+printf '\033#8'
+
+##
+# Test foreground
+##
+
+# move
+printf '\033[4;4H'
+# set color
+printf '\033[m\033[46;31;3m'
+printf 'foo'
+#set RGB
+printf '\033[48:2:244:144:25;38:2:56:150:199m'
+printf 'bar'
+printf '\033[1;38m'
+printf 'qux'
+
+
+##
+# Test background
+##
+
+# move
+printf '\033[8;4H'
+# set color
+printf '\033[m\033[46;31;3m'
+printf 'foo'
+#set RGB
+printf '\033[48:2:244:144:25;38:2:56:150:199m'
+printf 'bar'
+printf '\033[1;48m'
+printf 'qux'
+

tests/tests.results

@@ -152,3 +152,4 @@ xterm-colors-sharp.sh d35dc9a85f2e1f5b5be9a9d9bb876af7
 xterm-colors-rgb.sh 29145c3cb5960cbec2559f20c17e9a6c
 xterm-colors-rgbi.sh 29145c3cb5960cbec2559f20c17e9a6c
 xterm-set-cursor-color.sh bb605a08705dce5456c825697cb62be3
+csi-38-no-value.sh 62a4f10751b13322fb048f8754d4c2ae