//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#ifndef _STRINGFUNCTIONS_H_
#define _STRINGFUNCTIONS_H_

#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <cstdarg>

#ifndef _TORQUE_TYPES_H_
#include "platform/types.h"
#endif

#ifndef _PLATFORMASSERT_H_
#include "platform/platformAssert.h"
#endif

#if defined(TORQUE_OS_WIN)
// These standard functions are not defined on Win32 and other Microsoft platforms...
#define strcasecmp   _stricmp
#define strncasecmp  _strnicmp

#if _MSC_VER < 1800
#define strtof       (float)strtod
#endif // _MSC_VER < 1800

#endif // defined(TORQUE_OS_WIN)

//------------------------------------------------------------------------------
// standard string functions [defined in platformString.cpp]

// Buffer size bounds checking "safe" versions of strcat and strcpy. Ideally you
// should use these and check if they return >= dstSize and throw an error if so.
extern S32  dStrlcat(char *dst, const char *src, dsize_t dstSize);
extern S32  dStrlcpy(char *dst, const char *src, dsize_t dstSize);

#ifdef UNSAFE_STRING_FUNCTIONS
/// @deprecated Use dStrcat(char *, const char *, dsize_t) instead
inline char *dStrcat(char *dst, const char *src)
{
   AssertFatal(false, "dStrcat without length is deprecated");
   return strcat(dst,src);
}   
#endif

/// Concatenate strings.
/// @note The third parameter is the size of the destination buffer like strlcat
///       instead of the number of characters to copy like strncat. This is done
///       under the assumption that being easier to use will make this safer.
///       If you want the original behavior use dStrncat.
inline char *dStrcat(char *dst, const char *src, dsize_t dstSize)
{
   dStrlcat(dst, src, dstSize);
   return dst;
}

inline char *dStrncat(char *dst, const char *src, dsize_t len)
{
   return strncat(dst, src, len);
}

inline S32  dStrcmp(const char *str1, const char *str2)
{
   return strcmp(str1, str2);   
}

inline bool dStrIsEmpty(const char *src)
{
   return src == 0 || src[0] == '\0';
}

inline S32  dStrncmp(const char *str1, const char *str2, dsize_t len)
{
   return strncmp(str1, str2, len);   
}  

inline S32  dStricmp(const char *str1, const char *str2)
{
   return strcasecmp( str1, str2 );
}

inline S32  dStrnicmp(const char *str1, const char *str2, dsize_t len)
{
   return strncasecmp( str1, str2, len );
}

#ifdef UNSAFE_STRING_FUNCTIONS
/// @deprecated Use strcpy(char *, const char *, dsize_t) instead
inline char *dStrcpy(char *dst, const char *src)
{
   AssertFatal(false, "dStrcpy without length is deprecated");
   return strcpy(dst,src);
}
#endif

inline char *dStrcpy(char *dst, const char *src, dsize_t dstSize)
{
   dStrlcpy(dst, src, dstSize);
   return dst;
}   

inline char *dStrncpy(char *dst, const char *src, dsize_t len)
{
   return strncpy(dst,src,len);
}   

inline dsize_t dStrlen(const char *str)
{
   return strlen(str);
}   

inline char *dStrchr(char *str, S32 c)
{
   return strchr(str,c);
}   

inline const char *dStrchr(const char *str, S32 c)
{
   return strchr(str,c);
}   

inline char *dStrrchr(char *str, S32 c)
{
   return strrchr(str,c);
}

inline const char *dStrrchr(const char *str, S32 c)
{
   return strrchr(str,c);
}   

inline dsize_t dStrspn(const char *str, const char *set)
{
   return strspn(str, set);
}

inline dsize_t dStrcspn(const char *str, const char *set)
{
   return strcspn(str, set);
}   

inline char *dStrstr(const char *str1, const char *str2)
{
   return strstr((char *)str1,str2);
}

const char* dStristr( const char* str1, const char* str2 );
char* dStristr( char* str1, const char* str2 );


inline char *dStrtok(char *str, const char *sep)
{
   return strtok(str, sep);
}


inline S32 dAtoi(const char *str)
{
   return strtol(str, NULL, 10);
}

inline U32 dAtoui(const char *str, U32 base = 10)
{
   return strtoul(str, NULL, base);
}

inline U16 dAtous(const char *str, U32 base = 10)
{
   return strtoul(str, NULL, base);
}

inline F32 dAtof(const char *str)
{
   return strtof(str, NULL);
}

inline F64 dAtod(const char *str)
{
   return strtod(str, NULL);
}

inline S64 dAtol(const char* str)
{
   return strtol(str, NULL, 10);
}

inline char dToupper(const char c)
{
   return toupper( c );
}

inline char dTolower(const char c)
{
   return tolower( c );
}

inline bool dIsalnum(const char c)
{
   return isalnum(c);
}

inline bool dIsalpha(const char c)
{
   return isalpha(c);
}

inline bool dIsspace(const char c)
{
   return isspace(c);
}

inline bool dIsdigit(const char c)
{
   return isdigit(c);
}

inline bool dIsquote(const char c)
{
   return ( c == '\"' );
}

//------------------------------------------------------------------------------
// non-standard string functions [defined in stringFunctions.cpp]

#define dStrdup(x) dStrdup_r(x, __FILE__, __LINE__)
extern char *dStrdup_r(const char *src, const char*, dsize_t);

extern char *dStrcpyl(char *dst, dsize_t dstSize, ...);
extern char *dStrcatl(char *dst, dsize_t dstSize, ...);

extern char *dStrupr(char *str);
extern char *dStrlwr(char *str);

extern char* dStrichr( char* str, char ch );
extern const char* dStrichr( const char* str, char ch );

extern S32        dStrcmp(const UTF16 *str1, const UTF16 *str2);
extern S32        dStrnatcmp( const char* str1, const char* str2 );
extern S32        dStrnatcasecmp( const char* str1, const char* str2 );

inline bool dAtob(const char *str)
{
   return !dStricmp(str, "true") || dAtof(str);
}

bool dStrEqual(const char* str1, const char* str2);

bool dStrStartsWith(const char* str1, const char* str2);

bool dStrEndsWith(const char* str1, const char* str2);

char* dStripPath(const char* filename);

int dStrrev(char* str);
int dItoa(int n, char s[]);

//------------------------------------------------------------------------------
// standard I/O functions [defined in platformString.cpp]

extern void   dPrintf(const char *format, ...);
extern S32    dVprintf(const char *format, va_list arglist);
extern S32    dSprintf(char *buffer, U32 bufferSize, const char *format, ...);
extern S32    dVsprintf(char *buffer, U32 bufferSize, const char *format, va_list arglist);
extern S32    dSscanf(const char *buffer, const char *format, ...);

#endif