qzdoom/src/sc_man.h
Randy Heit f24c0cf292 - Merge scanner changes from the scripting branch, since I'm pretty sure the
token names were out of sync here, too.



SVN r2209 (trunk)
2010-03-14 04:03:07 +00:00

154 lines
3.3 KiB
C++

#ifndef __SC_MAN_H__
#define __SC_MAN_H__
class FScanner
{
public:
struct SavedPos
{
const char *SavedScriptPtr;
int SavedScriptLine;
};
// Methods ------------------------------------------------------
FScanner();
FScanner(const FScanner &other);
FScanner(int lumpnum);
~FScanner();
FScanner &operator=(const FScanner &other);
void Open(const char *lumpname);
void OpenFile(const char *filename);
void OpenMem(const char *name, const char *buffer, int size);
void OpenLumpNum(int lump);
void Close();
void SetCMode(bool cmode);
void SetEscape(bool esc);
const SavedPos SavePos();
void RestorePos(const SavedPos &pos);
static FString TokenName(int token, const char *string=NULL);
bool GetString();
void MustGetString();
void MustGetStringName(const char *name);
bool CheckString(const char *name);
bool GetToken();
void MustGetAnyToken();
void TokenMustBe(int token);
void MustGetToken(int token);
bool CheckToken(int token);
bool CheckTokenId(ENamedName id);
bool GetNumber();
void MustGetNumber();
bool CheckNumber();
bool GetFloat();
void MustGetFloat();
bool CheckFloat();
void UnGet();
bool Compare(const char *text);
int MatchString(const char * const *strings, size_t stride = sizeof(char*));
int MustMatchString(const char * const *strings, size_t stride = sizeof(char*));
int GetMessageLine();
void ScriptError(const char *message, ...);
void ScriptMessage(const char *message, ...);
// Members ------------------------------------------------------
char *String;
int StringLen;
int TokenType;
int Number;
double Float;
FName Name;
int Line;
bool End;
bool Crossed;
int LumpNum;
FString ScriptName;
protected:
void PrepareScript();
void CheckOpen();
bool ScanString(bool tokens);
// Strings longer than this minus one will be dynamically allocated.
static const int MAX_STRING_SIZE = 128;
bool ScriptOpen;
FString ScriptBuffer;
const char *ScriptPtr;
const char *ScriptEndPtr;
char StringBuffer[MAX_STRING_SIZE];
FString BigStringBuffer;
bool AlreadyGot;
int AlreadyGotLine;
bool LastGotToken;
const char *LastGotPtr;
int LastGotLine;
bool CMode;
bool Escape;
};
enum
{
TK_SequenceStart = 256,
#define xx(sym,str) sym,
#include "sc_man_tokens.h"
TK_LastToken
};
//==========================================================================
//
//
//
//==========================================================================
enum
{
MSG_WARNING,
MSG_FATAL,
MSG_ERROR,
MSG_DEBUG,
MSG_LOG,
MSG_DEBUGLOG,
MSG_MESSAGE
};
//==========================================================================
//
// a class that remembers a parser position
//
//==========================================================================
struct FScriptPosition
{
static int ErrorCounter;
FString FileName;
int ScriptLine;
FScriptPosition()
{
ScriptLine=0;
}
FScriptPosition(const FScriptPosition &other);
FScriptPosition(FString fname, int line);
FScriptPosition(FScanner &sc);
FScriptPosition &operator=(const FScriptPosition &other);
void Message(int severity, const char *message,...) const;
static void ResetErrorCounter()
{
ErrorCounter = 0;
}
};
#endif //__SC_MAN_H__