Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtinfo/dtinfogen/infolib/etc/Task.h

@@ -0,0 +1,93 @@
+/* $XConsortium: Task.h /main/2 1996/07/18 15:23:13 drk $ */
+
+#ifndef __Task_h
+#define __Task_h
+
+#include <stddef.h>
+
+#include "Exceptions.hh"
+
+class Unexpected : public Exception{
+public:
+  /* BEWARE! we keep a pointer to the string without copying it! */
+  Unexpected(const char *msg)  { msg_ = msg; };
+
+  const char *msg(void) { return msg_; };
+
+  DECLARE_EXCEPTION(Unexpected, Exception);
+  
+private:
+  const char *msg_;
+};
+
+
+class Token;
+
+class Task{
+public:
+  virtual ~Task() {};
+  
+  virtual void markup(const Token& t) = 0 /* throw(Unexpected) */;
+
+  virtual void data(const char *chars,
+		    size_t len) = 0;
+
+};
+
+class ComplexTask: public Task{
+
+public:
+  virtual void markup(const Token& t) /* throw(Unexpected) */;
+
+  virtual void data(const char *chars,
+		    size_t len);
+protected:
+  ComplexTask();
+  ~ComplexTask();
+
+  void removeAllSubTasks();
+  void addSubTask(Task *);
+
+  void stopSubTask(Task *);
+
+#define KILLSUBTASK(t) { if(t) { stopSubTask(t); delete t; t = NULL; } }
+
+  Task *subtask(int i) { return subtasks[i]; };
+
+protected:
+  Task **subtasks;
+  int    used;
+
+private:
+  int    alloc;
+
+  void grow(int);
+};
+
+#define TEST_TASK 0
+#if TEST_TASK
+
+class TestTask : public Task{
+
+public:
+  virtual void markup(const Token& t) /* throw(Unexpected) */;
+
+  virtual void data(const char *chars,
+		    size_t len);
+};
+
+class TestTask2: public ComplexTask{
+
+protected:
+  int f_base;
+  
+public:
+  virtual void markup(const Token& t) /* throw(Unexpected) */;
+
+  virtual void data(const char *chars,
+		    size_t len);
+  TestTask2();
+};
+#endif /* TEST_TASK */
+
+#endif /* __Task_h */