Removed the ST_QUIT state

There shouldn't be a need for such a state when there's a central
place where the program execution keeps returning to.

src/calc.c

@@ -300,7 +300,7 @@ int calc_key(int ch) {
 }
 
 
-void calc_process() {
+int calc_process() {
   char *path, *name;
   struct stat fs;
   struct dir *t;
@@ -414,7 +414,7 @@ void calc_process() {
 
     link_del(root);
     browse_init(root->sub);
-    return;
+    return 0;
   }
 
   /* something went wrong... */
@@ -422,8 +422,12 @@ void calc_process() {
 calc_fail:
   while(failed && !input_handle(0))
     ;
-  pstate = orig ? ST_BROWSE : ST_QUIT;
-  return;
+  if(orig == NULL)
+    return 1;
+  else {
+    browse_init(NULL);
+    return 0;
+  }
 }
 
 

src/calc.h

@@ -30,7 +30,7 @@
 
 extern char calc_smfs;  /* stay on the same filesystem */
 
-void calc_process(void);
+int  calc_process(void);
 int  calc_key(int);
 void calc_draw(void);
 void calc_init(char *, struct dir *);

src/global.h

@@ -47,7 +47,6 @@
 #define ST_BROWSE 1
 #define ST_DEL    2
 #define ST_HELP   3
-#define ST_QUIT   4
 
 
 /* structure representing a file or directory */

src/main.c

@@ -159,9 +159,9 @@ int main(int argc, char **argv) {
   if(ncresize(min_rows, min_cols))
     min_rows = min_cols = 0;
 
-  while(pstate != ST_QUIT) {
-    if(pstate == ST_CALC)
-      calc_process();
+  while(1) {
+    if(pstate == ST_CALC && calc_process())
+      break;
     else if(pstate == ST_DEL)
       delete_process();
     else if(input_handle(0))