termptyesc: export VPA handler to its own function + tests

src/bin/termptyesc.c

@@ -2962,6 +2962,25 @@ _handle_esc_csi_uts(Termpty *ty, Eina_Unicode **ptr)
    TAB_UNSET(ty, arg);
 }
 
+static void
+_handle_esc_csi_vpa(Termpty *ty, Eina_Unicode **ptr)
+{
+   Eina_Unicode *b = *ptr;
+   int arg = _csi_arg_get(ty, &b);
+   int max = ty->h + 1;
+
+   if (arg == -CSI_ARG_ERROR)
+     return;
+   DBG("VPA - Cursor Vertical Position Absolute: %d", arg);
+   if (ty->termstate.restrict_cursor && (ty->termstate.bottom_margin > 0))
+     {
+        max = ty->termstate.bottom_margin + 1;
+     }
+   TERMPTY_RESTRICT_FIELD(arg, 1, max);
+   ty->termstate.wrapnext = 0;
+   ty->cursor_state.cy = arg - 1;
+}
+
 static int
 _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, const Eina_Unicode *ce)
 {
@@ -3085,17 +3104,7 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, const Eina_Unicode *ce)
         if (*(cc-1) == ' ')
           _handle_esc_csi_uts(ty, &b);
         else
-          {
-             arg = _csi_arg_get(ty, &b);
-             if (arg == -CSI_ARG_ERROR)
-               goto error;
-             if (arg < 1)
-               arg = 1;
-             DBG("to row %d", arg);
-             ty->termstate.wrapnext = 0;
-             ty->cursor_state.cy = arg - 1;
-             TERMPTY_RESTRICT_FIELD(ty->cursor_state.cy, 0, ty->h);
-          }
+          _handle_esc_csi_vpa(ty, &b);
         break;
       case 'e':
         _handle_esc_csi_cud_or_vpr(ty, &b, cc);

tests/tests.results

@@ -72,3 +72,4 @@ hpa.sh 0f86ca83e072d41b89dd1a012f0749a7
 rep.sh b91ebb46fb5ebd95aa2cb87ad12bb4ba
 da.sh 3083fbec33befe5299ca3726a19fcff2
 uts.sh 1c72fe49e7f98aac137d436ac4906bc8
+vpa.sh c712e5c3c5e31a362e4257200d92d9a6

tests/vpa.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+
+# fill space with E
+printf '\033#8'
+# set color
+printf '\033[46;31;3m'
+# move to 2;2
+printf '\033[2;2H'
+
+# VPA 0
+printf '\033[0d0'
+
+# VPA 1
+printf '\033[2;4H'
+printf '\033[1d1'
+
+# VPA 2
+printf '\033[2;6H'
+printf '\033[2d2'
+
+# VPA default
+printf '\033[2;8H'
+printf '\033[ddefault'
+
+# VPA 23
+printf '\033[2;6H'
+printf '\033[23d23'
+
+# VPA 24
+printf '\033[2;6H'
+printf '\033[24dbottom'
+
+# VPA too far
+printf '\033[2;20H'
+printf '\033[33333dtoo far'
+
+
+# VPA with margins
+# set top/bottom margins:
+printf '\033[10;20r'
+# allow left/right margins
+printf '\033[?69h'
+# set left/right margins:
+printf '\033[25;50s'
+# change color
+printf '\033[0m\033[45;32;1m'
+# fill restricted region with @
+printf '\033[64;10;25;20;50\044x'
+# change color back
+printf '\033[0m\033[46;31;3m'
+printf '\033[2;30H'
+printf '\033[22d22 with margins'
+
+# VPA with cursor restricted
+# restrict cursor
+printf '\033[?6h'
+printf '\033[2;20H'
+printf '\033[22d22 with margins and DECOM'