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113 lines
4.9 KiB
C++
113 lines
4.9 KiB
C++
// Classic Shell (c) 2009-2016, Ivo Beltchev
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// Confidential information of Ivo Beltchev. Not for disclosure or distribution without prior written consent from the author
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// StringUtils is also available under the CPOL license as part of the FormatString article
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// on CodeProject: http://www.codeproject.com/KB/string/FormatString.aspx
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#ifndef _STRINGUTILS_H
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#define _STRINGUTILS_H
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// StringUtils provides secure implementations of common string functions.
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// All strings are guaranteed to be zero-terminated and to not contain partial
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// double-byte characters or partial surrogate pairs.
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// It also provides char and wchar_t overrides of the same functions.
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//
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///////////////////////////////////////////////////////////////////////////////
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// Configuration of the string functions
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// If defined, enables the use of WideCharToMultiByte and MultiByteToWideChar
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// If not defined, wcstombs and mbstowcs are used instead. they always use the default code page
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// and don't support surrogate pairs
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#define STR_USE_WIN32_CONV
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// If defined, enables the use of Windows localization functions - GetNumberFormat, GetTimeFormat, etc
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// If not defined, then the numbers, currency, time and date use fixed formats
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#define STR_USE_WIN32_NLS
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// If defined, enables support for SYSTEMTIME, FILETIME and DATE
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// If not defined, only time_t is supported as a time format
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#define STR_USE_WIN32_TIME
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// If defined, enables the use of IsDBCSLeadByte to support DBCS code pages
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// If not defined, isleadbyte is used instead
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#define STR_USE_WIN32_DBCS
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// enables support for STL strings and streams
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//#define STR_USE_STL
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#include <string.h>
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#include <stdarg.h>
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#if defined(_WIN32) || defined(_WIN64)
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#include <windows.h>
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#endif
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#ifdef STR_USE_STL
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#include <string>
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#endif
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// _countof: compute the number of elements in a statically-allocated array
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// VS2005 supports this, but earlier versions do not
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#ifndef _countof
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#define _countof(x) (sizeof(x)/sizeof((x)[0]))
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#endif
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// Returns 1 if the ANSI code page is single-byte, or 2 if it is double-byte (DBCS)
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int GetMaxCharSize( void );
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// Returns the length of a string
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inline int Strlen( const char *str ) { return (int)strlen(str); }
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inline int Strlen( const wchar_t *str ) { return (int)wcslen(str); }
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// Copies src to dst. size is the size of dst in characters, including the terminating 0.
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// Returns the number of characters copied, excluding the terminating 0.
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// The return value is <=size-1. If size is 0, returns 0 and does nothing.
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// The result in dst is always 0 terminated.
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int Strcpy( char *dst, int size, const char *src );
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int Strcpy( wchar_t *dst, int size, const wchar_t *src );
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// Copies src to dst. size is the size of dst in characters, including the terminating 0.
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// Copies up to len characters and always appends terminating 0.
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int Strncpy( char *dst, int size, const char *src, int len );
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int Strncpy( wchar_t *dst, int size, const wchar_t *src, int len );
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// Appends src to dst. size is the size of dst in bytes, including the terminating 0.
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// Returns the number of characters copied, excluding the terminating 0.
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// The return value is <=size-1-strlen(dst). If size>=strlen(dst), returns 0 and does nothing.
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// The result in dst is always 0 terminated.
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int Strcat( char *dst, int size, const char *src );
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int Strcat( wchar_t *dst, int size, const wchar_t *src );
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// Writes formatted string to dst. size is the size of dst in characters, including the terminating 0.
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// Returns the number of characters written, excluding the terminating 0.
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// The return value is <=size-1. If size is 0, returns 0 and does nothing.
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// The result in dst is always 0 terminated.
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int _cdecl Sprintf( char *dst, int size, const char *format, ... );
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int _cdecl Sprintf( wchar_t *dst, int size, const wchar_t *format, ... );
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int _cdecl Vsprintf( char *dst, int size, const char *format, va_list args );
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int _cdecl Vsprintf( wchar_t *dst, int size, const wchar_t *format, va_list args );
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// Outputs a formatted debug string
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void Trace( const char *format, ... );
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void Trace( const wchar_t *format, ... );
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// Converts between multi-byte and wide characters. size is the size of dst in characters, including the
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// terminating 0.
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// Returns the number of characters copied, excluding the terminating 0.
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// The return value is <=size-1. If size is 0, returns 0 and does nothing.
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// The result in dst is always 0 terminated.
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// If dst is NULL the size is ignored and the function just returns the number of characters (not counting the 0)
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#ifdef STR_USE_WIN32_CONV
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int MbsToWcs( wchar_t *dst, int size, const char *src, int codePage=CP_ACP );
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int WcsToMbs( char *dst, int size, const wchar_t *src, int codePage=CP_ACP );
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#else
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int MbsToWcs( wchar_t *dst, int size, const char *src );
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int WcsToMbs( char *dst, int size, const wchar_t *src );
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#endif
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const char *GetToken( const char *text, char *token, int size, const char *separators );
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const wchar_t *GetToken( const wchar_t *text, wchar_t *token, int size, const wchar_t *separators );
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#endif
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