StdLib/Include/ctype.h - edk2 - Git at Google

 /** @file
   Single-byte character classification, case conversion macros, and
   function declarations.

   The header <ctype.h> declares several functions useful for testing and mapping
   characters.  In all cases, the argument is an int, the value of which shall be
   representable as an unsigned char or shall equal the value of the macro EOF.
   If the argument has any other value, the behavior is undefined.

   The behavior of these functions is affected by the current locale.  The
   default is the "C" locale.

   The term "printing character" refers to a member of a locale-specific
   set of characters, each of which occupies at least one printing position on an output
   device; the term control character refers to a member of a locale-specific
   set of characters that are not printing characters.

   Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials are licensed and made available under
   the terms and conditions of the BSD License that accompanies this distribution.
   The full text of the license may be found at
   http://opensource.org/licenses/bsd-license.

   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 **/
 #ifndef _CTYPE_H
 #define _CTYPE_H
 #include  <sys/EfiCdefs.h>
 #include  <sys/_ctype.h>

 __BEGIN_DECLS
 // Declarations for the classification Functions

 /** The isalnum function tests for any character for which isalpha or isdigit
     is true.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isalnum(int c);

 /** The isalpha function tests for any character for which isupper or islower
     is true, or any character that is one of a locale-specific set of
     alphabetic characters for which none of iscntrl, isdigit, ispunct, or
     isspace is true. In the "C" locale, isalpha returns true only for the
     characters for which isupper or islower is true.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isalpha(int c);

 /** The isblank function tests that a character is a white-space character that results
     in a number of space (' ') characters being sent to the output device.  In the C locale
     this is either ' ' or '\t'.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isblank(int);

 /** The iscntrl function tests for any control character.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int iscntrl(int c);

 /** The isdigit function tests for any decimal-digit character.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isdigit(int c);

 /** The isgraph function tests for any printing character except space (' ').

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isgraph(int c);

 /** The islower function tests for any character that is a lowercase letter or
     is one of a locale-specific set of characters for which none of iscntrl,
     isdigit, ispunct, or isspace is true.  In the "C" locale, islower returns
     true only for the lowercase letters.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int islower(int c);

 /** The isprint function tests for any printing character including space (' ').

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isprint(int c);

 /** The ispunct function tests for any printing character that is one of a
     locale-specific set of punctuation characters for which neither isspace nor
     isalnum is true. In the "C" locale, ispunct returns true for every printing
     character for which neither isspace nor isalnum is true.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int ispunct(int c);

 /** The isspace function tests for any character that is a standard white-space
     character or is one of a locale-specific set of characters for which
     isalnum is false. The standard white-space characters are the following:
     space (' '), form feed ('\f'), new-line ('\n'), carriage return ('\r'),
     horizontal tab ('\t'), and vertical tab ('\v'). In the "C" locale, isspace
     returns true only for the standard white-space characters.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isspace(int c);

 /** The isupper function tests for any character that is an uppercase letter or
     is one of a locale-specific set of characters for which none of iscntrl,
     isdigit, ispunct, or isspace is true. In the "C" locale, isupper returns
     true only for the uppercase letters.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isupper(int c);

 /** The isxdigit function tests for any hexadecimal-digit character.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isxdigit(int c);

 /** The isascii function tests that a character is one of the 128 7-bit ASCII characters.
     This function is not part of the C standard, but is commonly used.

     @param[in]    c   The character to be tested.

     @return   Returns nonzero (true) if and only if the value of the parameter c
               can be classified as specified in the description of the function.
 **/
 int isascii(int c);

 /** The tolower function converts an uppercase letter to a corresponding
     lowercase letter.

     @param[in]    c   The character to be converted.

     @return   If the argument is a character for which isupper is true and
               there are one or more corresponding characters, as specified by
               the current locale, for which islower is true, the tolower
               function returns one of the corresponding characters (always the
               same one for any given locale); otherwise, the argument is
               returned unchanged.
 **/
 int tolower(int c);

 /** The toupper function converts a lowercase letter to a corresponding
     uppercase letter.

     @param[in]    c   The character to be converted.

     @return   If the argument is a character for which islower is true and
               there are one or more corresponding characters, as specified by
               the current locale, for which isupper is true, the toupper
               function returns one of the corresponding characters (always the
               same one for any given locale); otherwise, the argument is
               returned unchanged.
 **/
 int toupper(int c);

 __END_DECLS

 /** Character Classification Macros.
     Undefine individually or define NO_CTYPE_MACROS, before including <ctype.h>,
     in order to use the Function version of the character classification macros.
 @{
 **/
 #ifndef NO_CTYPE_MACROS
   #define isalnum(c)    (__isCClass( (int)c, (_CD | _CU | _CL | _XA)))
   #define isalpha(c)    (__isCClass( (int)c, (_CU | _CL | _XA)))
   #define iscntrl(c)    (__isCClass( (int)c, (_CC)))
   #define isdigit(c)    (__isCClass( (int)c, (_CD)))
   #define isgraph(c)    (__isCClass( (int)c, (_CG)))
   #define islower(c)    (__isCClass( (int)c, (_CL)))
   #define isprint(c)    (__isCClass( (int)c, (_CS | _CG)))
   #define ispunct(c)    (__isCClass( (int)c, (_CP)))
   #define isspace(c)    (__isCClass( (int)c, (_CW)))
   #define isupper(c)    (__isCClass( (int)c, (_CU)))
   #define isxdigit(c)   (__isCClass( (int)c, (_CD | _CX)))
   #define tolower(c)    (__toLower((int)c))
   #define toupper(c)    (__toUpper((int)c))
 #endif  /* NO_CTYPE_MACROS */
 ///@}

 #endif  /* _CTYPE_H */
	/** @file
	Single-byte character classification, case conversion macros, and
	function declarations.

	The header <ctype.h> declares several functions useful for testing and mapping
	characters. In all cases, the argument is an int, the value of which shall be
	representable as an unsigned char or shall equal the value of the macro EOF.
	If the argument has any other value, the behavior is undefined.

	The behavior of these functions is affected by the current locale. The
	default is the "C" locale.

	The term "printing character" refers to a member of a locale-specific
	set of characters, each of which occupies at least one printing position on an output
	device; the term control character refers to a member of a locale-specific
	set of characters that are not printing characters.

	Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
	This program and the accompanying materials are licensed and made available under
	the terms and conditions of the BSD License that accompanies this distribution.
	The full text of the license may be found at
	http://opensource.org/licenses/bsd-license.

	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
	**/
	#ifndef _CTYPE_H
	#define _CTYPE_H
	#include <sys/EfiCdefs.h>
	#include <sys/_ctype.h>

	__BEGIN_DECLS
	// Declarations for the classification Functions

	/** The isalnum function tests for any character for which isalpha or isdigit
	is true.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isalnum(int c);

	/** The isalpha function tests for any character for which isupper or islower
	is true, or any character that is one of a locale-specific set of
	alphabetic characters for which none of iscntrl, isdigit, ispunct, or
	isspace is true. In the "C" locale, isalpha returns true only for the
	characters for which isupper or islower is true.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isalpha(int c);

	/** The isblank function tests that a character is a white-space character that results
	in a number of space (' ') characters being sent to the output device. In the C locale
	this is either ' ' or '\t'.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isblank(int);

	/** The iscntrl function tests for any control character.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int iscntrl(int c);

	/** The isdigit function tests for any decimal-digit character.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isdigit(int c);

	/** The isgraph function tests for any printing character except space (' ').

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isgraph(int c);

	/** The islower function tests for any character that is a lowercase letter or
	is one of a locale-specific set of characters for which none of iscntrl,
	isdigit, ispunct, or isspace is true. In the "C" locale, islower returns
	true only for the lowercase letters.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int islower(int c);

	/** The isprint function tests for any printing character including space (' ').

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isprint(int c);

	/** The ispunct function tests for any printing character that is one of a
	locale-specific set of punctuation characters for which neither isspace nor
	isalnum is true. In the "C" locale, ispunct returns true for every printing
	character for which neither isspace nor isalnum is true.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int ispunct(int c);

	/** The isspace function tests for any character that is a standard white-space
	character or is one of a locale-specific set of characters for which
	isalnum is false. The standard white-space characters are the following:
	space (' '), form feed ('\f'), new-line ('\n'), carriage return ('\r'),
	horizontal tab ('\t'), and vertical tab ('\v'). In the "C" locale, isspace
	returns true only for the standard white-space characters.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isspace(int c);

	/** The isupper function tests for any character that is an uppercase letter or
	is one of a locale-specific set of characters for which none of iscntrl,
	isdigit, ispunct, or isspace is true. In the "C" locale, isupper returns
	true only for the uppercase letters.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isupper(int c);

	/** The isxdigit function tests for any hexadecimal-digit character.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isxdigit(int c);

	/** The isascii function tests that a character is one of the 128 7-bit ASCII characters.
	This function is not part of the C standard, but is commonly used.

	@param[in] c The character to be tested.

	@return Returns nonzero (true) if and only if the value of the parameter c
	can be classified as specified in the description of the function.
	**/
	int isascii(int c);

	/** The tolower function converts an uppercase letter to a corresponding
	lowercase letter.

	@param[in] c The character to be converted.

	@return If the argument is a character for which isupper is true and
	there are one or more corresponding characters, as specified by
	the current locale, for which islower is true, the tolower
	function returns one of the corresponding characters (always the
	same one for any given locale); otherwise, the argument is
	returned unchanged.
	**/
	int tolower(int c);

	/** The toupper function converts a lowercase letter to a corresponding
	uppercase letter.

	@param[in] c The character to be converted.

	@return If the argument is a character for which islower is true and
	there are one or more corresponding characters, as specified by
	the current locale, for which isupper is true, the toupper
	function returns one of the corresponding characters (always the
	same one for any given locale); otherwise, the argument is
	returned unchanged.
	**/
	int toupper(int c);

	__END_DECLS

	/** Character Classification Macros.
	Undefine individually or define NO_CTYPE_MACROS, before including <ctype.h>,
	in order to use the Function version of the character classification macros.
	@{
	**/
	#ifndef NO_CTYPE_MACROS
	#define isalnum(c) (__isCClass( (int)c, (_CD \| _CU \| _CL \| _XA)))
	#define isalpha(c) (__isCClass( (int)c, (_CU \| _CL \| _XA)))
	#define iscntrl(c) (__isCClass( (int)c, (_CC)))
	#define isdigit(c) (__isCClass( (int)c, (_CD)))
	#define isgraph(c) (__isCClass( (int)c, (_CG)))
	#define islower(c) (__isCClass( (int)c, (_CL)))
	#define isprint(c) (__isCClass( (int)c, (_CS \| _CG)))
	#define ispunct(c) (__isCClass( (int)c, (_CP)))
	#define isspace(c) (__isCClass( (int)c, (_CW)))
	#define isupper(c) (__isCClass( (int)c, (_CU)))
	#define isxdigit(c) (__isCClass( (int)c, (_CD \| _CX)))
	#define tolower(c) (__toLower((int)c))
	#define toupper(c) (__toUpper((int)c))
	#endif /* NO_CTYPE_MACROS */
	///@}

	#endif /* _CTYPE_H */