241 lines
7.9 KiB
C
241 lines
7.9 KiB
C
/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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tstring.h
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Abstract:
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This include file contains manifests and macros to be used to integrate
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the TCHAR and LPTSTR definitions
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Note that our naming convention is that a "size" indicates a number of
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bytes whereas a "length" indicates a number of characters.
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Author:
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Richard Firth (rfirth) 02-Apr-1991
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Environment:
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Portable (Win/32).
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Requires ANSI C extensions: slash-slash comments, long external names.
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Revision History:
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22-May-1991 Danl
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Added STRSIZE macro
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19-May-1991 JohnRo
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Changed some parm names to make things easier to read.
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15-May-1991 rfirth
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Added TCHAR_SPACE and MAKE_TCHAR() macro
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15-Jul-1991 RFirth
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Added STRING_SPACE_REQD() and DOWN_LEVEL_STRSIZE
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05-Aug-1991 JohnRo
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Added MEMCPY macro.
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19-Aug-1991 JohnRo
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Added character type stuff: ISDIGIT(), TOUPPER(), etc.
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20-Aug-1991 JohnRo
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Changed strnicmp to _strnicmp to keep PC-LINT happy. Ditto stricmp.
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13-Sep-1991 JohnRo
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Need UNICODE STRSIZE() too.
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13-Sep-1991 JohnRo
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Added UNICODE STRCMP() and various others.
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07-May-1992 beng
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Use official wchar.h header file
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--*/
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#ifndef _TSTRING_H_INCLUDED
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#define _TSTRING_H_INCLUDED
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#include <ctype.h> // isdigit(), iswdigit() eventually, etc.
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#ifdef LM20_COMPATIBLE
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#define MAKE_STR_FUNCTION(s) s##f
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#else
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#define MAKE_STR_FUNCTION(s) s
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#endif
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#if defined(UNICODE)
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#include <wchar.h> // wcslen(), etc.
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//
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// function macro prototypes
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//
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#define ISALNUM(tchar) iswalnum(tchar) // locale-dependent.
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#define ISALPHA(tchar) iswalpha(tchar) // locale-dependent.
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#define ISCNTRL(tchar) iswcntrl(tchar) // locale-dependent.
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#define ISDIGIT(tchar) iswdigit(tchar)
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#define ISGRAPH(tchar) iswgraph(tchar) // locale-dependent.
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#define ISLOWER(tchar) iswlower(tchar) // locale-dependent.
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#define ISPRINT(tchar) iswprint(tchar) // locale-dependent.
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#define ISPUNCT(tchar) iswpunct(tchar) // locale-dependent.
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#define ISSPACE(tchar) iswspace(tchar) // locale-dependent.
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#define ISUPPER(tchar) iswupper(tchar) // locale-dependent.
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#define ISXDIGIT(tchar) iswxdigit(tchar)
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#define STRCAT(dest, src) wcscat((dest), (src))
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#define STRCHR(s1, c) (LPTSTR)MAKE_STR_FUNCTION(wcschr)((s1), (c))
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#define STRCPY(dest, src) wcscpy((dest), (src))
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#define STRCSPN(s, c) (DWORD)MAKE_STR_FUNCTION(wcscspn)((s), (c))
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// STRLEN: Get character count of s.
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#define STRLEN(s) wcslen(s)
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#define STRNCAT(dest, src, n) \
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(LPTSTR)MAKE_STR_FUNCTION(wcsncat)((dest), (src), (n))
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#define STRNCPY(dest, src, n) \
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(LPTSTR)MAKE_STR_FUNCTION(wcsncpy)((dest), (src), (n))
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#define STRSPN(s1, s2) (DWORD)MAKE_STR_FUNCTION(wcsspn)((s1), (s2))
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#define STRRCHR (LPTSTR)MAKE_STR_FUNCTION(wcsrchr)
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#define STRTAIL(s1, s2) (LPTSTR)MAKE_STR_FUNCTION(wcstail)((s1), (s2))
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#define STRUPR(s) (LPTSTR)MAKE_STR_FUNCTION(wcsupr)(s)
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// these don't have formal parameters because we want to take the address of
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// the mapped function in certain cases. Modify as appropriate.
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// Note that for these functions, lengths are in characters.
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// compare functions: len is maximum number of characters being compared.
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#define STRCMP wcscmp
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#define STRICMP (LONG)MAKE_STR_FUNCTION(_wcsicmp)
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#define STRNCMP (LONG)MAKE_STR_FUNCTION(wcsncmp)
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#define STRNICMP (LONG)MAKE_STR_FUNCTION(_wcsnicmp)
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#define TOLOWER(tchar) towlower(tchar) // locale-dependent.
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#define TOUPPER(tchar) towupper(tchar) // locale-dependent.
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//
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// manifests
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//
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#define _CHAR_TYPE WCHAR
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#else // not UNICODE
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#include <string.h> // strlen(), etc.
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//
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// function macro prototypes
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//
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#define ISALNUM(tchar) isalnum(tchar) // locale-dependent.
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#define ISALPHA(tchar) isalpha(tchar) // locale-dependent.
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#define ISCNTRL(tchar) iscntrl(tchar) // locale-dependent.
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#define ISDIGIT(tchar) isdigit(tchar)
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#define ISGRAPH(tchar) isgraph(tchar) // locale-dependent.
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#define ISLOWER(tchar) islower(tchar) // locale-dependent.
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#define ISPRINT(tchar) isprint(tchar) // locale-dependent.
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#define ISPUNCT(tchar) ispunct(tchar) // locale-dependent.
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#define ISSPACE(tchar) isspace(tchar) // locale-dependent.
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#define ISUPPER(tchar) isupper(tchar) // locale-dependent.
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#define ISXDIGIT(tchar) isxdigit(tchar)
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#define STRCAT(dest, src) (LPTSTR)MAKE_STR_FUNCTION(strcat)((dest), (src))
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#define STRNCAT(dest, src, n) \
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(LPTSTR)MAKE_STR_FUNCTION(strncat)((dest), (src), (n))
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// STRLEN: Get character count of s.
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#define STRLEN(s) (DWORD)MAKE_STR_FUNCTION(strlen)(s)
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#define STRSPN(s1, s2) (DWORD)MAKE_STR_FUNCTION(strspn)((s1), (s2))
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#define STRCSPN(s, c) (DWORD)MAKE_STR_FUNCTION(strcspn)((s), (c))
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#define STRCPY(dest, src) (LPTSTR)MAKE_STR_FUNCTION(strcpy)((dest), (src))
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#define STRNCPY(dest, src, n) \
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(LPTSTR)MAKE_STR_FUNCTION(strncpy)((dest), (src), (n))
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#define STRCHR(s1, c) (LPTSTR)MAKE_STR_FUNCTION(strchr)((s1), (c))
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#define STRRCHR (LPTSTR)MAKE_STR_FUNCTION(strrchr)
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#define STRTAIL(s1, s2) (LPTSTR)MAKE_STR_FUNCTION(strtail)((s1), (s2))
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#define STRUPR(s) (LPTSTR)MAKE_STR_FUNCTION(strupr)(s)
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// these don't have formal parameters because we want to take the address of
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// the mapped function in certain cases. Modify as appropriate.
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// Note that for these functions, lengths are in characters.
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// compare functions: len is maximum number of characters being compared.
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#define STRCMP (LONG)MAKE_STR_FUNCTION(strcmp)
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#define STRICMP (LONG)MAKE_STR_FUNCTION(_stricmp)
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#define STRNCMP (LONG)MAKE_STR_FUNCTION(strncmp)
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#define STRNICMP (LONG)MAKE_STR_FUNCTION(_strnicmp)
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#define TOLOWER(tchar) tolower(tchar) // locale-dependent.
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#define TOUPPER(tchar) toupper(tchar) // locale-dependent.
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//
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// manifests
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//
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#define _CHAR_TYPE TCHAR
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#endif // not UNICODE
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//
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// For the memory routines, the counts are always BYTE counts.
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//
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#define MEMCPY memcpy
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#define MEMMOVE memmove
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//
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// This is used to determine the number of bytes (including the NUL
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// terminator) in a unicode string. This will generally be used when
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// calculating the size of a string for allocation purposes.
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//
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#define STRSIZE(p) ((STRLEN(p)+1) * sizeof(TCHAR))
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//
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// character literals (both types)
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//
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#define TCHAR_EOS ((_CHAR_TYPE)'\0')
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#define TCHAR_STAR ((_CHAR_TYPE)'*')
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#define TCHAR_BACKSLASH ((_CHAR_TYPE)'\\')
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#define TCHAR_FWDSLASH ((_CHAR_TYPE)'/')
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#define TCHAR_COLON ((_CHAR_TYPE)':')
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#define TCHAR_DOT ((_CHAR_TYPE)'.')
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#define TCHAR_SPACE ((_CHAR_TYPE)' ')
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//
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// General purpose macro for casting character types to whatever type in vogue
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// (as defined in this file)
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//
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#define MAKE_TCHAR(c) ((_CHAR_TYPE)(c))
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//
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// IS_PATH_SEPARATOR
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//
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// lifted from curdir.c and changed to use TCHAR_ character literals, checks
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// if a character is a path separator i.e. is a member of the set [\/]
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//
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#define IS_PATH_SEPARATOR(ch) ((ch == TCHAR_BACKSLASH) || (ch == TCHAR_FWDSLASH))
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//
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// The following 2 macros lifted from I_Net canonicalization files
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//
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#define IS_DRIVE(c) ISALPHA(c)
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#define IS_NON_ZERO_DIGIT(c) (((c) >= MAKE_TCHAR('1')) && ((c) <= MAKE_TCHAR('9')))
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//
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// STRING_SPACE_REQD returns a number (of bytes) corresponding to the space
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// required in which (n) characters can be accomodated
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//
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#define STRING_SPACE_REQD(n) ((n) * sizeof(_CHAR_TYPE))
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//
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// DOWN_LEVEL_STRLEN returns the number of single-byte characters necessary to
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// store a converted _CHAR_TYPE string. This will be WCHAR (or wchar_t) if
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// UNICODE is defined or TCHAR (or char) otherwise
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//
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#define DOWN_LEVEL_STRSIZE(n) ((n) / sizeof(_CHAR_TYPE))
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#endif // _TSTRING_H_INCLUDED
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