termptyesc: handle CTC + tests

src/bin/termptyesc.c

@@ -2735,8 +2735,25 @@ _handle_esc_csi_ctc(Termpty *ty, Eina_Unicode **ptr)
 
    if (arg == -CSI_ARG_ERROR)
      return;
-   DBG("CTC - Cursor Tab Control: %d", arg);
-   /* TODO */
+   switch (arg)
+     {
+      case -CSI_ARG_NO_VALUE:
+         EINA_FALLTHROUGH;
+      case 0:
+        TAB_SET(ty, ty->cursor_state.cx);
+        break;
+      case 2:
+        TAB_UNSET(ty, ty->cursor_state.cx);
+        break;
+      case 4:
+        EINA_FALLTHROUGH;
+      case 5:
+        termpty_clear_tabs_on_screen(ty);
+        break;
+      default:
+         ERR("invalid CTC argument %d", arg);
+         ty->decoding_error = EINA_TRUE;
+     }
 }
 
 static int

tests/ctc.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# fill space with E
+printf '\033#8'
+# set color
+printf '\033[46;31;3m'
+# move to 0;0
+printf '\033[H'
+# set tabs
+printf '\033H\033H\033[3C\033[W\033[4C\033[0W\033[5C\033H\033[6C\033H'
+printf '\033[7C\033H\033[8C\033H\033[9C'
+printf '\nTabs set:'
+# show # on tabs
+printf '\n#\t#\t#\t#\t#\t#\t#\t#\t#\t#\t#'
+printf '\n#\t#\t#\t#\t#\t#\t#\t#\t#\t#\t#'
+# remove and add a tab
+printf '\n#  \033[2W@      \033[0W#   \033[W#(One tab removed, two added)'
+printf '\n#\t#\t#\t#\t#\t#\t#\t#\t#\t#\t#\t#'
+# remove all tabs
+printf '\n\033[4WRemove all tabs:'
+printf '\n#\t#\t#\t#'
+# set tabs
+printf '\nAdd them again\033[?5W:'
+printf '\r\033H\033H\033[3C\033[W\033[4C\033[0W\033[5C\033H\033[6C\033H'
+printf '\033[7C\033H\033[8C\033H\033[9C'
+printf '\n#\t#\t#\t#\t#\t#\t#\t#\t#\t#\t#'
+# remove all tabs
+printf '\n\033[5WRemove all tabs:'
+printf '\n#\t#\t#\t#'

tests/tests.results

@@ -63,3 +63,4 @@ dl.sh e1e0ba19345d2ebf888f5a3e37f27037
 su.sh 591185f42b75daa61726217033a17eaf
 sd.sh 4bfda7ec3e6192acab077de2bc270525
 decst8c.sh 0ea805e8f4c2626ce66c566a10548d0f
+ctc.sh d35eeacdb2e99f5ac8cc3c4e8d72f8b0