expand accepting states for primary device attributes

src/lib/input.c

@@ -640,7 +640,7 @@ typedef enum {
   STATE_DA_1_SEMI, // got '1;'
   STATE_DA_1_0, // got '1;0', XTSMGRAPHICS color registers or VT101
   STATE_DA_6, // got '6', could be VT102 or VT220/VT320/VT420
-  STATE_DA_DRAIN, // drain out the primary DA to 'c'
+  STATE_DA_DRAIN, // drain out the primary DA to an alpha
   STATE_SIXEL,// XTSMGRAPHICS about Sixel geometry (got '2')
   STATE_SIXEL_SEMI1,   // got first semicolon in sixel geometry, want Ps
   STATE_SIXEL_SUCCESS, // got Ps == 0, want second semicolon
@@ -1049,36 +1049,33 @@ pump_control_read(query_state* inits, unsigned char c){
         inits->state = STATE_DA_DRAIN;
       }else if(c == '6'){
         inits->state = STATE_DA_6;
-      }else if(c == 'c'){
+      }else if(c >= 0x40 && c <= 0x7E){
         inits->state = STATE_NULL;
-        return 1;
       }
       break;
     case STATE_DA_1:
-      if(c == 'c'){
+      if(c >= 0x40 && c <= 0x7E){
         inits->state = STATE_NULL;
         return 1;
       }else if(c == ';'){
         inits->state = STATE_DA_1_SEMI;
-      }else{
-        // FIXME error?
-      }
+      } // FIXME error?
       break;
     case STATE_DA_1_SEMI:
       if(c == '2'){ // VT100 with Advanced Video Option
         inits->state = STATE_DA_DRAIN;
       }else if(c == '0'){
         inits->state = STATE_DA_1_0;
-      }
+      }else if(c >= 0x40 && c <= 0x7E){
+        inits->state = STATE_NULL;
+      } // FIXME error?
       break;
     case STATE_DA_1_0:
-      if(c == 'c'){ // VT101 with No Options
+      if(c >= 0x40 && c <= 0x7E){
         inits->state = STATE_NULL;
       }else if(c == ';'){
         inits->state = STATE_SIXEL_CREGS;
-      }else{
-        // FIXME error?
-      }
+      } // FIXME error?
       break;
     case STATE_SIXEL_CREGS:
       if(c == 'S'){
@@ -1089,14 +1086,14 @@ pump_control_read(query_state* inits, unsigned char c){
       }
       break;
     case STATE_DA_6:
-      if(c == 'c'){
+      if(c >= 0x40 && c <= 0x7E){
         inits->state = STATE_NULL;
         return 1;
       }
       // FIXME
       break;
     case STATE_DA_DRAIN:
-      if(c == 'c'){
+      if(c >= 0x40 && c <= 0x7E){
         inits->state = STATE_NULL;
         return 1;
       }