qzdoom-gpl/src/zstring.h
Randy Heit c8cdb52863 - Removed generational garbage collection from the string pool because it didn't
actually work.
- Turned the list of TabCommands into a TArray because I saw lots of console
  commands in the memory leak report at exit. Then I realized those were actually
  key bindings, so I changed the Bindings and DoubleBindings arrays into FString
  arrays.
- Fixed: FStringCVar was missing a destructor.
- Added TArray::Insert().
- Fixed: TArray::Delete() used memmove().
- Renamed Malloc(), Realloc(), and Calloc() to M_Malloc(), M_Realloc(), and
  M_Calloc() so that the debug versions can be defined as macros.
- Enabled the CRT's memory leak detection in WinMain().
- Moved contents of PO_DeInit() into P_FreeLevelData().
- Removed "PolyBlockMap = NULL;" from P_SetupLevel(), because the P_FreeLevelData()
  call it makes next does the exact same thing, but also freeing it if needed.
- Fixed: Unneeded memcpy in UnpackUserCmd() when ucmd and basis are the same


SVN r75 (trunk)
2006-05-04 03:49:46 +00:00

235 lines
7.1 KiB
C++

#ifndef ZSTRING_H
#define ZSTRING_H
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include "tarray.h"
//#define NOPOOLS
class FString
{
public:
FString () : Chars(NULL) {}
// Copy constructors
FString (const FString &other) { Chars = NULL; *this = other; }
FString (const char *copyStr);
FString (const char *copyStr, size_t copyLen);
FString (char oneChar);
// Concatenation constructors
FString (const FString &head, const FString &tail);
FString (const FString &head, const char *tail);
FString (const FString &head, char tail);
FString (const char *head, const FString &tail);
FString (const char *head, const char *tail);
FString (char head, const FString &tail);
~FString ();
operator char *() { return Chars; }
operator const char *() const { return Chars; }
char *GetChars() const { return Chars; }
char &operator[] (int index) { return Chars[index]; }
char &operator[] (size_t index) { return Chars[index]; }
FString &operator = (const FString &other);
FString &operator = (const char *copyStr);
FString operator + (const FString &tail) const;
FString operator + (const char *tail) const;
FString operator + (char tail) const;
friend FString operator + (const char *head, const FString &tail);
friend FString operator + (char head, const FString &tail);
FString &operator += (const FString &tail);
FString &operator += (const char *tail);
FString &operator += (char tail);
FString Left (size_t numChars) const;
FString Right (size_t numChars) const;
FString Mid (size_t pos, size_t numChars) const;
long IndexOf (const FString &substr, long startIndex=0) const;
long IndexOf (const char *substr, long startIndex=0) const;
long IndexOf (char subchar, long startIndex=0) const;
long IndexOfAny (const FString &charset, long startIndex=0) const;
long IndexOfAny (const char *charset, long startIndex=0) const;
long LastIndexOf (const FString &substr) const;
long LastIndexOf (const char *substr) const;
long LastIndexOf (char subchar) const;
long LastIndexOf (const FString &substr, long endIndex) const;
long LastIndexOf (const char *substr, long endIndex) const;
long LastIndexOf (char subchar, long endIndex) const;
long LastIndexOf (const char *substr, long endIndex, size_t substrlen) const;
long LastIndexOfAny (const FString &charset) const;
long LastIndexOfAny (const char *charset) const;
long LastIndexOfAny (const FString &charset, long endIndex) const;
long LastIndexOfAny (const char *charset, long endIndex) const;
void ToUpper ();
void ToLower ();
void SwapCase ();
void StripLeft ();
void StripLeft (const FString &charset);
void StripLeft (const char *charset);
void StripRight ();
void StripRight (const FString &charset);
void StripRight (const char *charset);
void StripLeftRight ();
void StripLeftRight (const FString &charset);
void StripLeftRight (const char *charset);
void Insert (size_t index, const FString &instr);
void Insert (size_t index, const char *instr);
void Insert (size_t index, const char *instr, size_t instrlen);
void ReplaceChars (char oldchar, char newchar);
void ReplaceChars (const char *oldcharset, char newchar);
void StripChars (char killchar);
void StripChars (const char *killchars);
void MergeChars (char merger);
void MergeChars (char merger, char newchar);
void MergeChars (const char *charset, char newchar);
void Substitute (const FString &oldstr, const FString &newstr);
void Substitute (const char *oldstr, const FString &newstr);
void Substitute (const FString &oldstr, const char *newstr);
void Substitute (const char *oldstr, const char *newstr);
void Substitute (const char *oldstr, const char *newstr, size_t oldstrlen, size_t newstrlen);
void Format (const char *fmt, ...);
void VFormat (const char *fmt, va_list arglist);
bool IsInt () const;
bool IsFloat () const;
long ToLong (int base=0) const;
unsigned long ToULong (int base=0) const;
double ToDouble () const;
size_t Len() const { return Chars == NULL ? 0 : ((StringHeader *)(Chars - sizeof(StringHeader)))->Len; }
bool IsEmpty() const { return Len() == 0; }
void Resize (long newlen);
int Compare (const FString &other) const { return strcmp (Chars, other.Chars); }
int Compare (const char *other) const { return strcmp (Chars, other); }
int CompareNoCase (const FString &other) const { return stricmp (Chars, other.Chars); }
int CompareNoCase (const char *other) const { return stricmp (Chars, other); }
protected:
struct StringHeader
{
#ifndef NOPOOLS
FString *Owner; // FString this char array belongs to
#endif
size_t Len; // Length of FString, excluding terminating null
};
struct Pool;
struct PoolGroup
{
#ifndef NOPOOLS
~PoolGroup ();
Pool *Pools;
Pool *FindPool (char *chars) const;
static StringHeader *GetHeader (char *chars);
#endif
char *Alloc (FString *owner, size_t len);
char *Realloc (FString *owner, char *chars, size_t newlen);
void Free (char *chars);
};
FString (size_t len);
StringHeader *GetHeader () const;
static int FormatHelper (void *data, const char *str, int len);
static void StrCopy (char *to, const char *from, size_t len);
static void StrCopy (char *to, const FString &from);
static PoolGroup Pond;
char *Chars;
#ifndef __GNUC__
template<> friend void CopyForTArray<FString> (FString &dst, FString &src)
{
// When a TArray is resized, we just need to update the Owner, because
// the old copy is going to go away very soon. No need to call the
// destructor, either, because full ownership is transferred to the
// new FString.
char *chars = src.Chars;
dst.Chars = chars;
if (chars != NULL)
{
((FString::StringHeader *)(chars - sizeof(FString::StringHeader)))->Owner = &dst;
}
}
#else
template<class FString> friend inline void CopyForTArray (FString &dst, FString &src);
#endif
private:
void *operator new (size_t size, FString *addr)
{
return addr;
}
void operator delete (void *, FString *)
{
}
};
#ifdef __GNUC__
template<> inline void CopyForTArray<FString> (FString &dst, FString &src)
{
// When a TArray is resized, we just need to update the Owner, because
// the old copy is going to go away very soon. No need to call the
// destructor, either, because full ownership is transferred to the
// new FString.
char *chars = src.Chars;
dst.Chars = chars;
if (chars != NULL)
{
((FString::StringHeader *)(chars - sizeof(FString::StringHeader)))->Owner = &dst;
}
}
#endif
namespace StringFormat
{
enum
{
// Format specification flags
F_MINUS = 1,
F_PLUS = 2,
F_ZERO = 4,
F_BLANK = 8,
F_HASH = 16,
F_SIGNED = 32,
F_NEGATIVE = 64,
F_ZEROVALUE = 128,
// Format specification size prefixes
F_HALFHALF = 0x1000, // hh
F_HALF = 0x2000, // h
F_LONG = 0x3000, // l
F_LONGLONG = 0x4000, // ll or I64
F_BIGI = 0x5000 // I
};
typedef int (*OutputFunc)(void *data, const char *str, int len);
int VWorker (OutputFunc output, void *outputData, const char *fmt, va_list arglist);
int Worker (OutputFunc output, void *outputData, const char *fmt, ...);
};
#endif