Better handling of old-style K&R function declarations:

- Added a Cabs.PROTO_OLD constructor to Cabs.decl_type
- Refactored the Parser.vy and pre_parser.mly grammars
- Rewritten the conversion of old function definitions to new-style

2 files changed, 69 insertions, 3 deletions

diff --git a/test/regression/Results/parsing b/test/regression/Results/parsing
index e69de29b..94923756 100644
--- a/test/regression/Results/parsing
+++ b/test/regression/Results/parsing
@@ -0,0 +1,10 @@
+2
+3
+4
+5 4.500000 9.000000
+23
+3
+12 13 14
+4
+12 13 14
+4
diff --git a/test/regression/parsing.c b/test/regression/parsing.c
index 8687d6aa..ba093225 100644
--- a/test/regression/parsing.c
+++ b/test/regression/parsing.c
@@ -42,9 +42,9 @@ struct S {
   unsigned T:3;
   const T:3;
 };
-
+struct S stru;
 void i() {
-  struct S s;
+  struct S s = stru;
   s.T = -1;
   if(s.T < 0) printf("ERROR i\n");
 }
@@ -106,16 +106,72 @@ int j() {
   T T;
 }
 
-int k() {
+T k() {
   { T T; }
   T t;
   for(T T; ; );
   T u;
 }
 
+void krf(a)
+     int a;
+{
+  printf("%d\n", a);
+}
+
+void krg();
+void krg(int a)
+{
+  printf("%d\n", a);
+}
+
+void krh(int);
+void krh(b)
+  T b;
+{
+  printf("%d\n", b);
+}
+
+void kri();
+void kri(b, c)
+  int b;
+  double c;
+{
+  printf("%d %f %f\n", b, c, 2*c);
+}
+
+void krj();
+void krj(a, aa)
+     int a[];
+     void aa(int);
+{
+  printf("%d\n", *a);
+  aa(3);
+}
+
+void aa(int x) {
+  printf("%d\n", x);
+}
+
+void (*krk(a, b, c))(int)
+  int b, a, c;
+{
+  printf("%d %d %d\n", a, b, c);
+  return aa;
+}
+
 int main () {
   f(g);
   i();
   m();
+
+  krf(2);
+  krg(3);
+  krh(4);
+  kri(5.5, 4.5);
+  int x = 23;
+  krj(&x, aa);
+  krk(12, 13, 14)(4);
+  (*krk(12, 13, 14))(4);
   return 0;
 }