X-Git-Url: https://pd.if.org/git/?p=pd_readline;a=blobdiff_plain;f=pd_readline2.c;fp=pd_readline2.c;h=63a31e797e7c527c372eef46128a416ce429a782;hp=02b943d6f87be14760eeaf1be7c64570b4bf68d7;hb=3f771e17236364ded86e96ee64f99344337991f8;hpb=dba2080a407b920ad54432c484e0044b92cd34c7

diff --git a/pd_readline2.c b/pd_readline2.c
index 02b943d..63a31e7 100644
--- a/pd_readline2.c
+++ b/pd_readline2.c
@@ -9,6 +9,8 @@
 /*  The code can now distinguish between a printable key    */ 
 /*  and a key that should not be printed.                   */ 
 
+/*  Backspace key, and left and right arrow keys now work.  */   
+
 /*  It will still be some time before this is a REAL        */ 
 /*  readline, but we are "on the way"......                 */     
 /*  This code is released to the public domain.             */ 
@@ -138,20 +140,44 @@ int main(void)
       /* F2 is 27, 79, 81.  */  
       /* F3 is 27, 79, 82.  */  
       /* F4 is 27, 79, 83.  */  
-           
-                
+      
+      /* Backspace */ 
+      else if(key == 127) 
+      { 
+		 buffer[bufpnt].key = key;  
+		 /* Move 1 char to left */  
+		 printf("\033[1D");
+		 printf("\040"); 
+		 printf("\033[1D");  
+		 bufpnt += 1; 	  		
+	  } 	      
+                           
       else if(key == 27)        
-          {  
-			  
+          {  			  
 			  buffer[bufpnt].esc = 1; 			 
 			  key = getch(); 
               if(key == 91)               
               buffer[bufpnt].lbr = 1;                
               key = getch(); 
-              if( (key >= 65) && (key <= 68) )  
+              if(key == 65) /* Up arrow */ 
+               { 				 
+				 buffer[bufpnt].key = key;    				              
+               }	
+               if(key == 66) /* Down arrow */ 
+               { 				 
+				 buffer[bufpnt].key = key;    				              
+               }	 
+               if(key == 67) /* Left arrow */ 
+               { 				 
+				 buffer[bufpnt].key = key; 
+				 printf("\033[1C");   
+               }
+                if(key == 68) /* Right arrow */ 
                { 				 
-				 buffer[bufpnt].key = key;                  
-               }				  
+				 buffer[bufpnt].key = key; 
+				 printf("\033[1D");   				               				 								          
+               }
+                             			  
             bufpnt += 1; 	    
           } 
               
@@ -163,7 +189,7 @@ int main(void)
 			 puts("\n");  
 			 int j ; 
 		   /* Print the array of structs. */ 
-		     for (j=0; j<20; j++) 	
+		     for (j=0; j<bufpnt; j++) 	
 		     { 
 			    printf("Fnkey: %d ", buffer[j].fnkey  ) ; 
 			    printf("Ctrl:  %d ", buffer[j].ctrl   ) ;