#ifndef __TIDY_PLATFORM_H__
#define __TIDY_PLATFORM_H__

/**************************************************************************//**
 * @file
 * Platform specific definitions, specifics, and headers. This file is
 * included by `tidy.h` already, and need not be included separately. Among
 * other things, the PLATFORM_NAME is defined and the most common systems
 * headers are included.
 *
 * @note It should be largely unnecessary to modify this file unless adding
 * support for a completely new architecture. Most options defined in this
 * file specify defaults that can be overriden by the build system; for
 * example, passing -D flags to CMake.
 *
 * @author  Charles Reitzel [creitzel@rcn.com]
 * @author  HTACG, et al (consult git log)
 *
 * @copyright
 *     Copyright (c) 1998-2017 World Wide Web Consortium (Massachusetts
 *     Institute of Technology, European Research Consortium for Informatics
 *     and Mathematics, Keio University).
 * @copyright
 *     See tidy.h for license.
 *
 * @date      Created 2001-05-20 by Charles Reitzel
 * @date      Updated 2002-07-01 by Charles Reitzel
 * @date      Further modifications: consult git log.
 ******************************************************************************/

#ifdef __cplusplus
extern "C" {
#endif

/*=============================================================================
 * Unix console application features
 *   By default on Unix-like systems when building for the console program,
 *   support runtime configuration files in /etc/ and in ~/. To prevent this,
 *   set ENABLE_CONFIG_FILES to NO. Specify -DTIDY_CONFIG_FILE and/or
 *   -DTIDY_USER_CONFIG_FILE to override the default paths in tidyplatform.h.
 * @note: this section refactored to support #584.
 *===========================================================================*/

/* #define ENABLE_CONFIG_FILES */

#if defined(TIDY_ENABLE_CONFIG_FILES)
#  if !defined(TIDY_CONFIG_FILE)
#    define TIDY_CONFIG_FILE "/etc/tidy.conf"
#  endif
#  if !defined(TIDY_USER_CONFIG_FILE)
#    define TIDY_USER_CONFIG_FILE "~/.tidyrc"
#  endif
#else
#  if defined(TIDY_CONFIG_FILE)
#    undef TIDY_CONFIG_FILE
#  endif
#  if defined(TIDY_USER_CONFIG_FILE)
#    undef TIDY_USER_CONFIG_FILE
#  endif
#endif


/*=============================================================================
 * Unix tilde expansion support
 *   By default on Unix-like systems when building for the console program,
 *   this flag is set so that Tidy knows getpwname() is available. It allows
 *   tidy to find files named ~your/foo for use in the HTML_TIDY environment
 *   variable or TIDY_CONFIG_FILE or TIDY_USER_CONFIG_FILE or on the command
 *   command line: -config ~joebob/tidy.cfg
 * Contributed by Todd Lewis.
 *===========================================================================*/

/* #define SUPPORT_GETPWNAM */


/*=============================================================================
 * Optional Tidy features support
 *===========================================================================*/

/* Enable/disable support for additional languages */
#ifndef SUPPORT_LOCALIZATIONS
#  define SUPPORT_LOCALIZATIONS 1
#endif
    
/* Enable/disable support for console */
#ifndef SUPPORT_CONSOLE_APP
#  define SUPPORT_CONSOLE_APP 1
#endif


/*=============================================================================
 * Platform specific convenience definitions
 *===========================================================================*/

/* === Convenience defines for Mac platforms === */

#if defined(macintosh)
/* Mac OS 6.x/7.x/8.x/9.x, with or without CarbonLib - MPW or Metrowerks 68K/PPC compilers */
#  define MAC_OS_CLASSIC
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "Mac OS"
#  endif

/* needed for access() */
#  if !defined(_POSIX) && !defined(NO_ACCESS_SUPPORT)
#    define NO_ACCESS_SUPPORT
#  endif

#  ifdef SUPPORT_GETPWNAM
#    undef SUPPORT_GETPWNAM
#  endif

#elif defined(__APPLE__) && defined(__MACH__)
    /* Mac OS X (client) 10.x (or server 1.x/10.x) - gcc or Metrowerks MachO compilers */
#  define MAC_OS_X
#  ifndef PLATFORM_NAME
#    include "TargetConditionals.h"
#    if TARGET_OS_IOS
#      define PLATFORM_NAME "Apple iOS"
#    elif TARGET_OS_MAC
#      define PLATFORM_NAME "Apple macOS"
#    elif TARGET_OS_TV
#      define PLATFORM_NAME "Apple tvOS"
#    elif TARGET_OS_WATCH
#      define PLATFORM_NAME "Apple watchOS"
#    else
#      define PLATFORM_NAME "Apple Unknown OS"
#    endif
#  endif
#endif

#if defined(MAC_OS_CLASSIC) || defined(MAC_OS_X)
/* Any OS on Mac platform */
#  define MAC_OS
#  define FILENAMES_CASE_SENSITIVE 0
#  define strcasecmp strcmp
#endif

/* === Convenience defines for BSD-like platforms === */

#if defined(__FreeBSD__)
#  define BSD_BASED_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "FreeBSD"
#  endif

#elif defined(__NetBSD__)
#  define BSD_BASED_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "NetBSD"
#  endif

#elif defined(__OpenBSD__)
#  define BSD_BASED_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "OpenBSD"
#  endif

#elif defined(__DragonFly__)
#  define BSD_BASED_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "DragonFly"
#  endif

#elif defined(__MINT__)
#  define BSD_BASED_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "FreeMiNT"
#  endif

#elif defined(__bsdi__)
#  define BSD_BASED_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "BSD/OS"
#  endif
#endif

/* === Convenience defines for Windows platforms === */

#if defined(WINDOWS) || defined(_WIN32)

#  define WINDOWS_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "Windows"
#  endif

#  if defined(__MWERKS__) || defined(__MSL__)
     /* not available with Metrowerks Standard Library */
#    ifdef SUPPORT_GETPWNAM
#      undef SUPPORT_GETPWNAM
#    endif
     /* needed for setmode() */
#    if !defined(NO_SETMODE_SUPPORT)
#      define NO_SETMODE_SUPPORT
#    endif
#    define strcasecmp _stricmp
#  endif

#  if defined(__BORLANDC__)
#    define strcasecmp stricmp
#  endif

#  define FILENAMES_CASE_SENSITIVE 0
#  define SUPPORT_POSIX_MAPPED_FILES 0

#endif /* WINDOWS */

/* === Convenience defines for Linux platforms === */

#if defined(linux) && defined(__alpha__)
   /* Linux on Alpha - gcc compiler */
#  define LINUX_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "Linux/Alpha"
#  endif

#elif defined(linux) && defined(__sparc__)
    /* Linux on Sparc - gcc compiler */
#  define LINUX_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "Linux/Sparc"
#  endif

#elif defined(linux) && (defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__))
    /* Linux on x86 - gcc compiler */
#  define LINUX_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "Linux/x86"
#  endif

#elif defined(linux) && defined(__powerpc__)
    /* Linux on PPC - gcc compiler */
#  define LINUX_OS
#  if defined(__linux__) && defined(__powerpc__)
#    ifndef PLATFORM_NAME
       /* MkLinux on PPC  - gcc (egcs) compiler */
#      define PLATFORM_NAME "MkLinux"
#    endif
#  else
#    ifndef PLATFORM_NAME
#      define PLATFORM_NAME "Linux/PPC"
#    endif
#  endif

#elif defined(linux) || defined(__linux__)
    /* generic Linux */
#  define LINUX_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "Linux"
#  endif
#endif

/* === Convenience defines for Solaris platforms === */
 
#if defined(sun)
#  define SOLARIS_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "Solaris"
#  endif
#endif

/* === Convenience defines for HPUX + gcc platforms === */

#if defined(__hpux)
#  define HPUX_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "HPUX"
#  endif
#endif

/* === Convenience defines for RISCOS + gcc platforms === */

#if defined(__riscos__)
#  define RISC_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "RISC OS"
#  endif
#endif

/* === Convenience defines for OS/2 + icc/gcc platforms === */

#if defined(__OS2__) || defined(__EMX__)
#  define OS2_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "OS/2"
#  endif
#  define FILENAMES_CASE_SENSITIVE 0
#  define strcasecmp stricmp
#endif

/* === Convenience defines for IRIX === */

#if defined(__sgi)
#  define IRIX_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "SGI IRIX"
#  endif
#endif

/* === Convenience defines for AIX === */

#if defined(_AIX)
#  define AIX_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "IBM AIX"
#  endif
#endif

/* === Convenience defines for BeOS platforms === */

#if defined(__BEOS__)
#  define BE_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "BeOS"
#  endif
#endif

/* === Convenience defines for Cygwin platforms === */

#if defined(__CYGWIN__)
#  define CYGWIN_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "Cygwin"
#  endif
#  define FILENAMES_CASE_SENSITIVE 0
#endif

/* === Convenience defines for OpenVMS === */

#if defined(__VMS)
#  define OPENVMS_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "OpenVMS"
#  endif
#  define FILENAMES_CASE_SENSITIVE 0
#endif

/* === Convenience defines for DEC Alpha OSF + gcc platforms === */

#if defined(__osf__)
#  define OSF_OS
#  ifndef PLATFORM_NAME
#    define PLATFORM_NAME "DEC Alpha OSF"
#  endif
#endif

/* === Convenience defines for ARM platforms === */

#if defined(__arm)
#  define ARM_OS
#  if defined(forARM) && defined(__NEWTON_H)
     /* Using Newton C++ Tools ARMCpp compiler */
#    define NEWTON_OS
#    ifndef PLATFORM_NAME
#      define PLATFORM_NAME "Newton"
#    endif
#  else
#    ifndef PLATFORM_NAME
#      define PLATFORM_NAME "ARM"
#    endif
#  endif
#endif


/*=============================================================================
 * Standard Library Includes
 *===========================================================================*/

#include <ctype.h>
#include <stdio.h>
#include <setjmp.h>  /* for longjmp on error exit */
#include <stdlib.h>
#include <stdarg.h>  /* may need <varargs.h> for Unix V */
#include <string.h>
#include <assert.h>

#ifdef NEEDS_MALLOC_H
#  include <malloc.h>
#endif

#ifdef SUPPORT_GETPWNAM
#  include <pwd.h>
#endif

#ifdef NEEDS_UNISTD_H
#  include <unistd.h>  /* needed for unlink on some Unix systems */
#endif


/*=============================================================================
 * Case sensitive file systems
 *===========================================================================*/

/* By default, use case-sensitive filename comparison. */
#ifndef FILENAMES_CASE_SENSITIVE
#  define FILENAMES_CASE_SENSITIVE 1
#endif


/*=============================================================================
 * Last modified time preservation
 *   Tidy preserves the last modified time for the files it cleans up.
 *
 *   If your platform doesn't support <utime.h> and the utime() function, or
 *   <sys/futime> and the futime() function then set PRESERVE_FILE_TIMES to 0.
 *
 *   If your platform doesn't support <sys/utime.h> and the futime() function,
 *   then set HAS_FUTIME to 0.
 *
 *   If your platform supports <utime.h> and the utime() function requires the
 *   file to be closed first, then set UTIME_NEEDS_CLOSED_FILE to 1.
 *===========================================================================*/

/* Keep old PRESERVEFILETIMES define for compatibility */
#ifdef PRESERVEFILETIMES
#  undef PRESERVE_FILE_TIMES
#  define PRESERVE_FILE_TIMES PRESERVEFILETIMES
#endif

#ifndef PRESERVE_FILE_TIMES
#  if defined(RISC_OS) || defined(OPENVMS_OS) || defined(OSF_OS)
#    define PRESERVE_FILE_TIMES 0
#  else
#    define PRESERVE_FILE_TIMES 1
#  endif
#endif

#if PRESERVE_FILE_TIMES

#  ifndef HAS_FUTIME
#    if defined(CYGWIN_OS) || defined(BE_OS) || defined(OS2_OS) || defined(HPUX_OS) || defined(SOLARIS_OS) || defined(LINUX_OS) || defined(BSD_BASED_OS) || defined(MAC_OS) || defined(__MSL__) || defined(IRIX_OS) || defined(AIX_OS) || defined(__BORLANDC__) || defined(__GLIBC__)
#      define HAS_FUTIME 0
#    else
#      define HAS_FUTIME 1
#    endif
#  endif

#  ifndef UTIME_NEEDS_CLOSED_FILE
#    if defined(SOLARIS_OS) || defined(BSD_BASED_OS) || defined(MAC_OS) || defined(__MSL__) || defined(LINUX_OS)
#      define UTIME_NEEDS_CLOSED_FILE 1
#    else
#      define UTIME_NEEDS_CLOSED_FILE 0
#    endif
#  endif

#  if defined(MAC_OS_X) || (!defined(MAC_OS_CLASSIC) && !defined(__MSL__))
#    include <sys/types.h>
#    include <sys/stat.h>
#  else
#    include <stat.h>
#  endif

#  if HAS_FUTIME
#    include <sys/utime.h>
#  else
#    include <utime.h>
#  endif

/* MS Windows needs _ prefix for Unix file functions.
   Not required by Metrowerks Standard Library (MSL).
  
   Tidy uses following for preserving the last modified time.

   WINDOWS automatically set by Win16 compilers.
   _WIN32 automatically set by Win32 compilers.
*/
#  if defined(_WIN32) && !defined(__MSL__) && !defined(__BORLANDC__)
#    define futime _futime
#    define fstat _fstat
#    define utimbuf _utimbuf /* Windows seems to want utimbuf */
#    define stat _stat
#    define utime _utime
#    ifndef vsnprintf
#    define vsnprintf _vsnprintf
#    endif
#  endif

#endif


/*=============================================================================
 * Windows file functions
 * Windows needs _ prefix for Unix file functions.
 * Not required by Metrowerks Standard Library (MSL).
 *
 * WINDOWS automatically set by Win16 compilers.
 * _WIN32 automatically set by Win32 compilers.
 *===========================================================================*/

#if defined(_WIN32) && !defined(__MSL__) && !defined(__BORLANDC__)

#  if !(defined(__WATCOMC__) || defined(__MINGW32__))
#    define fileno _fileno
#    define setmode _setmode
#  endif

# if defined(_MSC_VER)
#    define fileno _fileno
#if !defined(NDEBUG) && !defined(ENABLE_DEBUG_LOG) && !defined(DISABLE_DEBUG_LOG)
#define ENABLE_DEBUG_LOG
#endif
#endif

#  define access _access
#  ifndef strcasecmp
#  define strcasecmp _stricmp
#  endif

#  ifndef va_copy
#    define va_copy(dest, src) (dest = src)
#  endif

#  if _MSC_VER > 1000
#    pragma warning( disable : 4189 ) /* local variable is initialized but not referenced */
#    pragma warning( disable : 4100 ) /* unreferenced formal parameter */
#    pragma warning( disable : 4706 ) /* assignment within conditional expression */
#  endif

#  if _MSC_VER > 1300
#    pragma warning( disable : 4996 ) /* disable depreciation warning */
#  endif

#endif /* _WIN32 */

#if defined(_WIN32)

#  if (defined(_USRDLL) || defined(_WINDLL) || defined(BUILD_SHARED_LIB)) && !defined(TIDY_EXPORT) && !defined(TIDY_STATIC)
#    ifdef BUILDING_SHARED_LIB
#      define TIDY_EXPORT __declspec( dllexport )
#    else
#      define TIDY_EXPORT __declspec( dllimport )
#    endif
#  else
#    define TIDY_EXPORT extern
#  endif

#  ifndef TIDY_CALL
#    ifdef _WIN64
#      define TIDY_CALL __fastcall
#    else
#      define TIDY_CALL __stdcall
#    endif
#  endif

#endif /* _WIN32 */


/*=============================================================================
 * Hack for gnu sys/types.h file which defines uint and ulong
 *===========================================================================*/

#if defined(BE_OS) || defined(SOLARIS_OS) || defined(BSD_BASED_OS) || defined(OSF_OS) || defined(IRIX_OS) || defined(AIX_OS)
#  include <sys/types.h>
#endif

#if !defined(HPUX_OS) && !defined(CYGWIN_OS) && !defined(MAC_OS_X) && !defined(BE_OS) && !defined(SOLARIS_OS) && !defined(BSD_BASED_OS) && !defined(OSF_OS) && !defined(IRIX_OS) && !defined(AIX_OS) && !defined(LINUX_OS)
#  undef uint
   typedef unsigned int uint;
#endif

#if defined(HPUX_OS) || defined(CYGWIN_OS) || defined(MAC_OS) || defined(BSD_BASED_OS) || defined(_WIN32)
#  undef ulong
   typedef unsigned long ulong;
#endif


/*=============================================================================
 * Visibility support
 *   With GCC 4,  __attribute__ ((visibility("default"))) can be used
 *   along compiling with tidylib with "-fvisibility=hidden". See
 *   http://gcc.gnu.org/wiki/Visibility and build/gmake/Makefile.
 *===========================================================================*/
/*
#if defined(__GNUC__) && __GNUC__ >= 4
#  define TIDY_EXPORT __attribute__ ((visibility("default")))
#endif
*/


/*=============================================================================
 * Other definitions
 *===========================================================================*/

#ifndef TIDY_EXPORT /* Define it away for most builds */
#  define TIDY_EXPORT
#endif

#ifndef TIDY_STRUCT
#  define TIDY_STRUCT
#endif

typedef unsigned char byte;

typedef uint tchar;         /* single, full character */
typedef char tmbchar;       /* single, possibly partial character */
#ifndef TMBSTR_DEFINED
   typedef tmbchar* tmbstr;    /* pointer to buffer of possibly partial chars */
   typedef const tmbchar* ctmbstr; /* Ditto, but const */
#  define NULLSTR (tmbstr)""
#  define TMBSTR_DEFINED
#endif

#ifndef TIDY_CALL
#  define TIDY_CALL
#endif

#if defined(__GNUC__) || defined(__INTEL_COMPILER)
#  define ARG_UNUSED(x) x __attribute__((unused))
#  define FUNC_UNUSED __attribute__((unused))
#else
#  define ARG_UNUSED(x) x
#  define FUNC_UNUSED
#endif

/* HAS_VSNPRINTF triggers the use of "vsnprintf", which is safe related to
   buffer overflow. Therefore, we make it the default unless HAS_VSNPRINTF
   has been defined. */
#ifndef HAS_VSNPRINTF
#  define HAS_VSNPRINTF 1
#endif

#ifndef SUPPORT_POSIX_MAPPED_FILES
#  define SUPPORT_POSIX_MAPPED_FILES 1
#endif

/* `bool` is a reserved word in some but not all C++ compilers depending on age.
   age. Work around is to avoid bool by introducing a new enum called `Bool`.
*/
    
/* We could use the C99 definition where supported
typedef _Bool Bool;
#define no (_Bool)0
#define yes (_Bool)1
*/
typedef enum
{
   no,
   yes
} Bool;

/* for NULL pointers 
#define null ((const void*)0)
extern void* null;
*/

#if defined(DMALLOC)
#  include "dmalloc.h"
#endif

/* Opaque data structure.
*  Cast to implementation type struct within lib.
*  This will reduce inter-dependencies/conflicts w/ application code.
*/
#if 1
#define opaque_type( typenam )\
struct _##typenam { int _opaque; };\
typedef struct _##typenam const * typenam
#else
#define opaque_type(typenam) typedef const void* typenam
#endif

/* Opaque data structure used to pass back
** and forth to keep current position in a
** list or other collection.
*/
opaque_type( TidyIterator );

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* __TIDY_PLATFORM_H__ */

/*
 * local variables:
 * mode: c
 * indent-tabs-mode: nil
 * c-basic-offset: 4
 * eval: (c-set-offset 'substatement-open 0)
 * end:
 */
