fixed range of char and digits, added single char, still printing for tests

class.c

@@ -20,10 +20,8 @@ char *classify(char *spec)
 	// test if the next thing is \ .
 	// or test if you have X-Y (where X or Y might be a character or escaped character)
 	//    \n-\r
-       if (spec[index]=='-' && index!=0 && !(index==1 && spec[0]=='^')){
-            if(spec[index+1]=='\0'){
-                printf("Error, bad use of range\n");
-            }
+       if (spec[index]=='-' && index!=0 && !(index==1 && spec[0]=='^') && spec[index+1]!='\0'){
+
             if(spec[index-1]<65 || spec[index+1]>122 || (spec[index-1]>90 && spec[index-1]<97) || (spec[index+1]>90 && spec[index+1]<97)){
                 //= if(spec[index-1] or spec[index+1] are not letters)
 
@@ -35,7 +33,9 @@ char *classify(char *spec)
                         for(int j=spec[index-1]; j<=spec[index+1] ; j++){
                             setBit(class,j);
                             printf("added digit : %c\n",j);
+                            
                         }
+                        index++;
                     }   
                 }
                 else{
@@ -51,18 +51,25 @@ char *classify(char *spec)
                             setBit(class,j);
                             printf("added char : %c\n",j);
                     }
+                    index++;
                 }
                 else if( spec[index-1]>=97 && spec[index-1]<=122 && spec[index+1]>=97 && spec[index+1]<=122 ){
                     for(int j=spec[index-1]; j<=spec[index+1] ; j++){
                             setBit(class,j);
                             printf("added char : %c\n",j);
+                            
                     }
+                    index++;
                 }
             }
-            
 
        }
-        printf("%i\n",spec[index]);
+       else if((spec[index]>=65 && spec[index]<=90) || (spec[index]>=97 && spec[index]<=122)){
+           setBit(class,spec[index]);
+           printf("added char : %c\n",spec[index]);
+       }
+        printf("%c\n",spec[index]);
+        printf("%i\n",index);
         index++;
     }
 
@@ -80,7 +87,7 @@ int main()
     ssize_t line_len=0;
     char a='a';
     printf("%i\n",(int)a);
-    printf("%s",classify("^-abca"));
+    printf("%s",classify("a-cA-Z"));
     while ((line_len= getline(&line,&line_max,stdin)) >= 0) {
         if (line_len>0 && line[line_len-1]=='\n') {
             line[line_len-1]=0;