Move binpac code into the main Zeek repository

This is based on commit 48f75b5f6415fe9d597e3e991cec635b1bc400dc from
the binpac repository.

tools/binpac/src/pac_exception.h

@@ -0,0 +1,102 @@
+#ifndef pac_exception_h
+#define pac_exception_h
+
+#include <string>
+using namespace std;
+
+#include "pac_common.h"
+
+class Exception {
+public:
+    Exception(const Object* o, string msg = "");
+
+    const char* msg() const { return msg_.c_str(); }
+    void append(string s) { msg_ += s; }
+
+private:
+    string msg_;
+};
+
+class ExceptionIDNotFound : public Exception {
+public:
+    ExceptionIDNotFound(const ID* id);
+    const ID* id() const { return id_; }
+
+private:
+    const ID* id_;
+};
+
+class ExceptionIDRedefinition : public Exception {
+public:
+    ExceptionIDRedefinition(const ID* id);
+    const ID* id() const { return id_; }
+
+private:
+    const ID* id_;
+};
+
+class ExceptionIDNotEvaluated : public Exception {
+public:
+    ExceptionIDNotEvaluated(const ID* id);
+    const ID* id() const { return id_; }
+
+private:
+    const ID* id_;
+};
+
+class ExceptionCyclicDependence : public Exception {
+public:
+    ExceptionCyclicDependence(const ID* id);
+    const ID* id() const { return id_; }
+
+private:
+    const ID* id_;
+};
+
+class ExceptionPaddingError : public Exception {
+public:
+    ExceptionPaddingError(const Object* o, string msg);
+};
+
+class ExceptionIDNotField : public Exception {
+public:
+    ExceptionIDNotField(const ID* id);
+    const ID* id() const { return id_; }
+
+private:
+    const ID* id_;
+};
+
+class ExceptionMemberNotFound : public Exception {
+public:
+    ExceptionMemberNotFound(const ID* type_id, const ID* member_id);
+
+private:
+    const ID *type_id_, *member_id_;
+};
+
+class ExceptionNonConstExpr : public Exception {
+public:
+    ExceptionNonConstExpr(const Expr* expr);
+
+private:
+    const Expr* expr;
+};
+
+class ExceptionInvalidCaseSizeExpr : public Exception {
+public:
+    ExceptionInvalidCaseSizeExpr(const Expr* expr);
+
+private:
+    const Expr* expr;
+};
+
+class ExceptionInvalidCaseLimitExpr : public Exception {
+public:
+    ExceptionInvalidCaseLimitExpr(const Expr* expr);
+
+private:
+    const Expr* expr;
+};
+
+#endif /* pac_exception_h */