grammar loader and unloader in C. Abstract Syntax only!

1 files changed, 76 insertions, 0 deletions

diff --git a/src/runtime/c/pgf/data.h b/src/runtime/c/pgf/data.h
new file mode 100644
index 000000000..b17ea6d66
--- /dev/null
+++ b/src/runtime/c/pgf/data.h
@@ -0,0 +1,76 @@
+#ifndef PGF_DATA_H
+#define PGF_DATA_H
+
+typedef int BindType;
+
+#include "expr.h"
+#include "type.h"
+
+struct _String {
+  int len;
+  unsigned int chars[];
+};
+
+struct _CId {
+  int len;
+  char chars[];
+};
+
+typedef struct _CIdList {
+  int count;
+  CId names[];
+} *CIdList;
+
+typedef struct _AbsCat {
+  CId name;
+  Context hypos;
+  CIdList funs;
+} *AbsCat;
+
+typedef struct _AbsCats {
+  int count;
+  struct _AbsCat lst[];
+} *AbsCats;
+
+typedef struct _AbsFun {
+  CId name;
+  Type ty;
+  int arrity;
+  Equations equs;
+} *AbsFun;
+
+typedef struct _AbsFuns {
+  int count;
+  struct _AbsFun lst[];
+} *AbsFuns;
+
+struct _Flag {
+  CId name;
+  Literal value;
+} ;
+
+typedef struct _Flags {
+  int count;
+  struct _Flag values[];
+} *Flags;
+
+typedef struct _Abstract {
+  CId name;
+  Flags flags;
+  AbsFuns funs;
+  AbsCats cats;
+} *Abstract;
+
+typedef struct _Concrete {
+  CId name;
+  Flags flags;
+} *Concrete;
+
+struct _PGF {
+  Flags flags;
+  int   nConcr;
+  struct _Abstract abstract;
+  struct _Concrete concretes[];
+};
+
+#endif