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344 lines
14 KiB
C++
344 lines
14 KiB
C++
/** @file
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Wide character classification and mapping utilities.
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The following macros are defined in this file:<BR>
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@verbatim
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WEOF Wide char version of end-of-file.
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@endverbatim
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The following types are defined in this file:<BR>
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@verbatim
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wint_t Type capable of holding all wchar_t values and WEOF.
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wctrans_t A type for holding locale-specific character mappings.
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wctype_t Type for holding locale-specific character classifications.
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@endverbatim
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The following functions are declared in this file:<BR>
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@verbatim
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############### Wide Character Classification Functions
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int iswalnum (wint_t);
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int iswalpha (wint_t);
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int iswcntrl (wint_t);
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int iswdigit (wint_t);
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int iswgraph (wint_t);
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int iswlower (wint_t);
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int iswprint (wint_t);
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int iswpunct (wint_t);
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int iswblank (wint_t);
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int iswspace (wint_t);
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int iswupper (wint_t);
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int iswxdigit (wint_t);
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############### Extensible Wide Character Classification Functions
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wctype_t wctype (const char *);
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int iswctype (wint_t, wctype_t);
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############### Wide Character Case Mapping Utilities
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wint_t towlower (wint_t);
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wint_t towupper (wint_t);
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############### Extensible Wide Character Case Mapping Utilities
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wctrans_t wctrans (const char *);
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wint_t towctrans (wint_t, wctrans_t);
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@endverbatim
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Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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* Copyright (c)1999 Citrus Project,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* citrus Id: wctype.h,v 1.4 2000/12/21 01:50:21 itojun Exp
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NetBSD: wctype.h,v 1.6 2005/02/03 04:39:32 perry Exp
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**/
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#ifndef _WCTYPE_H_
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#define _WCTYPE_H_
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#include <sys/EfiCdefs.h>
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#include <machine/ansi.h>
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#ifdef _EFI_WINT_T
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/** wint_t is an integer type unchanged by default argument promotions that can
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hold any value corresponding to members of the extended character set, as
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well as at least one value that does not correspond to any member of the
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extended character set: WEOF.
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*/
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typedef _EFI_WINT_T wint_t;
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#undef _BSD_WINT_T_
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#undef _EFI_WINT_T
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#endif
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#ifdef _BSD_WCTRANS_T_
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/** A scalar type for holding locale-specific character mappings. */
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typedef wint_t (*wctrans_t)(wint_t);
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#undef _BSD_WCTRANS_T_
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#endif
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#ifdef _BSD_WCTYPE_T_
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/** A scalar type capable of holding values representing locale-specific
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character classifications. */
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typedef _BSD_WCTYPE_T_ wctype_t;
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#undef _BSD_WCTYPE_T_
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#endif
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#ifndef WEOF
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/** WEOF expands to a constant expression of type wint_t whose value does not
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correspond to any member of the extended character set. It is accepted
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(and returned) by several functions, declared in this file, to indicate
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end-of-file, that is, no more input from a stream. It is also used as a
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wide character value that does not correspond to any member of the
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extended character set.
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*/
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#define WEOF ((wint_t)-1)
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#endif
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__BEGIN_DECLS
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/** Test for any wide character for which iswalpha or iswdigit is TRUE.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswalnum (wint_t WC);
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/** Test for any wide character for which iswupper or iswlower is TRUE,
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OR, a locale-specific character where none of iswcntrl, iswdigit,
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iswpunct, or iswspace is TRUE.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswalpha (wint_t WC);
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/** Test for any wide control character.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswcntrl (wint_t WC);
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/** Test if the value of WC is a wide character that corresponds to a decimal digit.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswdigit (wint_t WC);
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/** Test for wide characters for which iswprint is TRUE and iswspace is FALSE.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswgraph (wint_t WC);
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/** The iswlower function tests for any wide character that corresponds to a
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lowercase letter or is one of a locale-specific set of wide characters
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for which none of iswcntrl, iswdigit, iswpunct, or iswspace is TRUE.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswlower (wint_t WC);
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/** Test for any printing wide character.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswprint (wint_t WC);
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/** The iswpunct function tests for any printing wide character that is one
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of a locale-specific set of punctuation wide characters for which
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neither iswspace nor iswalnum is TRUE.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswpunct (wint_t WC);
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/** Test for standard blank characters or locale-specific characters
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for which iswspace is TRUE and are used to separate words within a line
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of text. In the "C" locale, iswblank only returns TRUE for the standard
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blank characters space (L' ') and horizontal tab (L'\t').
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswblank (wint_t WC);
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/** The iswspace function tests for any wide character that corresponds to a
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locale-specific set of white-space wide characters for which none of
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iswalnum, iswgraph, or iswpunct is TRUE.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswspace (wint_t WC);
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/** Tests for any wide character that corresponds to an uppercase letter or
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is one of a locale-specific set of wide characters for which none of
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iswcntrl, iswdigit, iswpunct, or iswspace is TRUE.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswupper (wint_t WC);
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/** The iswxdigit function tests for any wide character that corresponds to a
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hexadecimal-digit character.
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@param[in] WC The wide character to be classified.
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@return Returns non-zero (TRUE) if and only if the value of WC conforms
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to the classification described for this function.
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*/
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int iswxdigit (wint_t WC);
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/** Construct a value that describes a class of wide characters, identified
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by the string pointed to by Desc. The constructed value is suitable for
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use as the second argument to the iswctype function.
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The following strings name classes of wide characters that the iswctype
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function is able to test against. These strings are valid in all locales
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as Desc arguments to wctype().
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- "alnum"
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- "alpha"
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- "blank"
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- "cntrl"
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- "digit"
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- "graph"
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- "lower"
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- "print"
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- "punct"
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- "space"
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- "upper"
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- "xdigit
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@param[in] Desc A pointer to a multibyte character string naming a
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class of wide characters.
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@return If Desc identifies a valid class of wide characters in the
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current locale, the wctype function returns a nonzero value that
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is valid as the second argument to the iswctype function;
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otherwise, it returns zero.
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*/
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wctype_t wctype (const char *Desc);
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/** Determine whether the wide character WC has the property described by Wct.
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@param[in] WC The wide character to be classified.
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@param[in] Wct A value describing a class of wide characters.
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@return The iswctype function returns nonzero (TRUE) if and only if the
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value of the wide character WC has the property described by Wct.
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*/
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int iswctype (wint_t WC, wctype_t Wct);
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/** Convert an uppercase letter to a corresponding lowercase letter.
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@param[in] WC The wide character to be converted.
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@return If the argument is a wide character for which iswupper is TRUE
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and there are one or more corresponding wide characters, as
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specified by the current locale, for which iswlower is TRUE, the
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towlower function returns one of the corresponding wide
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characters (always the same one for any given locale); otherwise,
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the argument is returned unchanged.
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*/
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wint_t towlower (wint_t WC);
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/** Convert a lowercase letter to a corresponding uppercase letter.
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@param[in] WC The wide character to be converted.
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@return If the argument is a wide character for which iswlower is TRUE
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and there are one or more corresponding wide characters, as
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specified by the current locale, for which iswupper is TRUE, the
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towupper function returns one of the corresponding wide
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characters (always the same one for any given locale); otherwise,
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the argument is returned unchanged.
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*/
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wint_t towupper (wint_t WC);
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/** Construct a value that describes a mapping between wide characters
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identified by the string argument, S.
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The strings listed below are valid in all locales as the S argument to
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the wctrans function.
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- "tolower"
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- "toupper"
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@param[in] S A pointer to a multibyte character string naming a
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mapping between wide characters.
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@return If S identifies a valid mapping of wide characters in the current
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locale, the wctrans function returns a nonzero value that is
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valid as the second argument to the towctrans function;
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otherwise, it returns zero.
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*/
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wctrans_t wctrans (const char *S);
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/** Map the wide character WC using the mapping described by WTr. The current
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locale will be the same as during the call to wctrans that returned
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the value WTr.
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@param[in] WC The wide character to be converted.
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@param[in] WTr A value describing a mapping of wide characters in the
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current locale.
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@return Returns the mapped value of WC using the mapping selected by WTr.
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*/
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wint_t towctrans (wint_t WC, wctrans_t WTr);
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__END_DECLS
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#endif /* _WCTYPE_H_ */
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