// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c)
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WXEXPRH__
#include "wx/defs.h"
#include "wx/string.h"
-#if USE_IOSTREAMH
-#include <iostream.h>
-#else
-#include <iostream>
-#endif
-
#include "wx/list.h"
#include "wx/hash.h"
WXDLLEXPORT_DATA(extern wxExprErrorHandler) currentwxExprErrorHandler;
-WXDLLEXPORT_DATA(extern "C" FILE*) yyin;
-
-extern "C" int WXDLLEXPORT yyparse(void);
typedef enum {
wxExprNull,
wxExprType type;
union {
long integer;
- char *word;
- char *string;
- float real;
+ wxChar *word;
+ wxChar *string;
+ double real;
wxExpr *first; // If is a list expr, points to the first node
} value;
wxExpr *next; // If this is a node in a list, points to the next node
wxExpr *last; // If is a list expr, points to the last node
- wxExpr(wxExprType the_type, char *word_or_string, bool allocate);
+ wxExpr(wxExprType the_type, wxChar *word_or_string, bool allocate);
wxExpr(const wxString& functor); // Assume this is a new clause - pass functor
wxExpr(wxExprType the_type, const wxString& word_or_string = "");
wxExpr(long the_integer);
- wxExpr(float the_real);
+ wxExpr(double the_real);
wxExpr(wxList *the_list);
~wxExpr(void);
else return 0;
}
- inline float RealValue(void) const {
+ inline double RealValue(void) const {
if (type == wxExprReal)
return value.real;
else if (type == wxExprInteger)
- return (float)value.integer;
- else return (float)0.0;
+ return (double)value.integer;
+ else return (double)0.0;
}
inline wxString WordValue(void) const {
return value.word;
else if (type == wxExprString)
return wxString(value.string);
- else return wxString("");
+ else return wxString(wxT(""));
}
inline wxString StringValue(void) const {
return wxString(value.string);
else if (type == wxExprWord)
return wxString(value.word);
- else return wxString("");
+ else return wxString(wxT(""));
}
// Get nth arg of clause (starting from 1)
wxExpr *AttributeValue(const wxString& word) const; // Use only for a clause
wxString Functor(void) const; // Only for a clause
bool IsFunctor(const wxString& s) const; // Only for a clause
- void WriteClause(ostream& stream); // Write this expression as a top-level clause
- void WriteExpr(ostream& stream); // Write as any other subexpression
- void WriteLispExpr(ostream& stream);
+ void WriteClause(FILE* stream); // Write this expression as a top-level clause
+ void WriteExpr(FILE* stream); // Write as any other subexpression
// Append an expression to a list
void Append(wxExpr *expr);
// This should really be called SetAttributeValue since any existing
// attribute-value is deleted first.
void AddAttributeValue(const wxString& attribute, long value);
- void AddAttributeValue(const wxString& attribute, float value);
+ void AddAttributeValue(const wxString& attribute, double value);
void AddAttributeValueWord(const wxString& attribute, const wxString& value);
void AddAttributeValueString(const wxString& attribute, const wxString& value);
void AddAttributeValue(const wxString& attribute, wxList *value);
bool GetAttributeValue(const wxString& att, int& var) const;
bool GetAttributeValue(const wxString& att, long& var) const;
bool GetAttributeValue(const wxString& att, float& var) const;
+ bool GetAttributeValue(const wxString& att, double& var) const;
bool GetAttributeValue(const wxString& att, wxString& var) const; // Word OR string -> string
bool GetAttributeValue(const wxString& att, wxExpr **var) const;
// Compatibility with old PrologIO
- inline void AssignAttributeValue(char *att, int *var) const { GetAttributeValue(att, *var); }
- inline void AssignAttributeValue(char *att, long *var) const { GetAttributeValue(att, *var); }
- inline void AssignAttributeValue(char *att, float *var) const { GetAttributeValue(att, *var); }
- inline void AssignAttributeValue(char *att, wxExpr **var) const { GetAttributeValue(att, var); }
- void AssignAttributeValue(char *att, char **var) const ; // Word OR string -> string
+ inline void AssignAttributeValue(wxChar *att, int *var) const { GetAttributeValue(att, *var); }
+ inline void AssignAttributeValue(wxChar *att, long *var) const { GetAttributeValue(att, *var); }
+ inline void AssignAttributeValue(wxChar *att, float *var) const { GetAttributeValue(att, *var); }
+ inline void AssignAttributeValue(wxChar *att, double *var) const { GetAttributeValue(att, *var); }
+ inline void AssignAttributeValue(wxChar *att, wxExpr **var) const { GetAttributeValue(att, var); }
+ void AssignAttributeValue(wxChar *att, wxChar **var) const ; // Word OR string -> string
// Add string items to list if the list attribute exists
bool GetAttributeValueStringList(const wxString& att, wxList *var) const;
class WXDLLEXPORT wxExprDatabase: public wxList
{
- DECLARE_DYNAMIC_CLASS(wxExprDatabase)
- private:
- wxNode *position; // Where we are in a search
- wxHashTable *hash_table;
- wxString attribute_to_hash;
- public:
- int noErrors;
-
- wxExprDatabase(wxExprErrorHandler handler = 0);
-
- // Use hashing on both the functor, and the attribute of
- // specified type (wxExprString or wxExprInteger) and name.
- // So to find node 45
- // (i.e. match the clause node(id=45, ...))
- // it usually requires 1 look-up: the keys for functor and attribute
- // are added together.
- // Obviously if the attribute was missing in a clause, it would
- // fail to be found by this method, but could be retrieved by a
- // linear search using BeginFind and FindClauseByFunctor,
- // or just searching through the list as per usual.
-
- wxExprDatabase(wxExprType type, const wxString& attribute, int size = 500,
- wxExprErrorHandler handler = 0);
-
- ~wxExprDatabase(void);
-
- void BeginFind(void) ; // Initialise a search
- wxExpr *FindClause(long id) ; // Find a term based on an integer id attribute
- // e.g. node(id=23, type=rectangle, ....).
-
- // Find on basis of attribute/value pairs, e.g. type=rectangle
- // This doesn't use hashing; it's a linear search.
- wxExpr *FindClause(const wxString& word, const wxString& value);
- wxExpr *FindClause(const wxString& word, long value);
- wxExpr *FindClause(const wxString& word, float value);
- wxExpr *FindClauseByFunctor(const wxString& functor);
-
- wxExpr *HashFind(const wxString& functor, const wxString& value) const;
- wxExpr *HashFind(const wxString& functor, long value) const;
-
- void Append(wxExpr *expr); // Does cleverer things if hashing is on
- void ClearDatabase(void);
- inline int GetErrorCount() const { return noErrors; }
- bool Read(const wxString& filename);
- bool ReadFromString(const wxString& buffer);
- bool Write(const wxString& fileName);
- bool Write(ostream& stream);
- void WriteLisp(ostream& stream);
-
- // Compatibility
- inline bool ReadProlog(char *filename) { return Read(wxString(filename)); }
- inline bool ReadPrologFromString(char *buffer) { return ReadFromString(wxString(buffer)); }
- inline void WriteProlog(ostream& stream) { Write(stream); }
+private:
+ wxNode *position; // Where we are in a search
+ wxHashTable *hash_table;
+ wxString attribute_to_hash;
+
+public:
+ int noErrors;
+
+ wxExprDatabase(wxExprErrorHandler handler = 0);
+
+ // Use hashing on both the functor, and the attribute of
+ // specified type (wxExprString or wxExprInteger) and name.
+ // So to find node 45
+ // (i.e. match the clause node(id=45, ...))
+ // it usually requires 1 look-up: the keys for functor and attribute
+ // are added together.
+ // Obviously if the attribute was missing in a clause, it would
+ // fail to be found by this method, but could be retrieved by a
+ // linear search using BeginFind and FindClauseByFunctor,
+ // or just searching through the list as per usual.
+
+ wxExprDatabase(wxExprType type, const wxString& attribute, int size = 500,
+ wxExprErrorHandler handler = 0);
+
+ ~wxExprDatabase(void);
+
+ void BeginFind(void) ; // Initialise a search
+ wxExpr *FindClause(long id) ; // Find a term based on an integer id attribute
+ // e.g. node(id=23, type=rectangle, ....).
+
+ // Find on basis of attribute/value pairs, e.g. type=rectangle
+ // This doesn't use hashing; it's a linear search.
+ wxExpr *FindClause(const wxString& word, const wxString& value);
+ wxExpr *FindClause(const wxString& word, long value);
+ wxExpr *FindClause(const wxString& word, double value);
+ wxExpr *FindClauseByFunctor(const wxString& functor);
+
+ wxExpr *HashFind(const wxString& functor, const wxString& value) const;
+ wxExpr *HashFind(const wxString& functor, long value) const;
+
+ void Append(wxExpr *expr); // Does cleverer things if hashing is on
+ void ClearDatabase(void);
+ inline int GetErrorCount() const { return noErrors; }
+ bool Read(const wxString& filename);
+ bool ReadFromString(const wxString& buffer);
+ bool Write(const wxString& fileName);
+ bool Write(FILE* stream);
+
+ // Compatibility
+ inline bool ReadProlog(wxChar *filename) { return Read(wxString(filename)); }
+ inline bool ReadPrologFromString(char *buffer) { return ReadFromString(wxString(buffer)); }
+ inline void WriteProlog(FILE* stream) { Write(stream); }
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxExprDatabase)
};
// Function call-style interface - some more convenience wrappers/unwrappers
// Make a call
-wxExpr* WXDLLEXPORT wxExprMakeCall(const wxString& functor ...);
+WXDLLEXPORT wxExpr* wxExprMakeCall(const wxString& functor ...);
#define wxExprMakeInteger(x) (new wxExpr((long)x))
-#define wxExprMakeReal(x) (new wxExpr((float)x))
+#define wxExprMakeReal(x) (new wxExpr((double)x))
#define wxExprMakeString(x) (new wxExpr(wxExprString, x))
#define wxExprMakeWord(x) (new wxExpr(wxExprWord, x))
#define wxExprMake(x) (new wxExpr(x))
// Checks functor
-bool WXDLLEXPORT wxExprIsFunctor(wxExpr *expr, const wxString& functor);
+WXDLLEXPORT bool wxExprIsFunctor(wxExpr *expr, const wxString& functor);
// Temporary variable for communicating between wxexpr.cpp and YACC/LEX
WXDLLEXPORT_DATA(extern wxExprDatabase*) thewxExprDatabase;
// YACC/LEX can leave memory lying around...
-extern "C" WXDLLEXPORT wxExprCleanUp();
+extern "C" WXDLLEXPORT int wxExprCleanUp();
#endif
projects / wxWidgets.git / blobdiff