| /* |
| WCharacter.h - Character utility functions for Wiring & Arduino |
| Copyright (c) 2010 Hernando Barragan. All right reserved. |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef Character_h |
| #define Character_h |
| |
| #include <ctype.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // WCharacter.h prototypes |
| #if defined ( __GNUC__ ) |
| inline boolean isAlphaNumeric(int c) __attribute__((always_inline)); |
| inline boolean isAlpha(int c) __attribute__((always_inline)); |
| inline boolean isAscii(int c) __attribute__((always_inline)); |
| inline boolean isWhitespace(int c) __attribute__((always_inline)); |
| inline boolean isControl(int c) __attribute__((always_inline)); |
| inline boolean isDigit(int c) __attribute__((always_inline)); |
| inline boolean isGraph(int c) __attribute__((always_inline)); |
| inline boolean isLowerCase(int c) __attribute__((always_inline)); |
| inline boolean isPrintable(int c) __attribute__((always_inline)); |
| inline boolean isPunct(int c) __attribute__((always_inline)); |
| inline boolean isSpace(int c) __attribute__((always_inline)); |
| inline boolean isUpperCase(int c) __attribute__((always_inline)); |
| inline boolean isHexadecimalDigit(int c) __attribute__((always_inline)); |
| inline int toAscii(int c) __attribute__((always_inline)); |
| inline int toLowerCase(int c) __attribute__((always_inline)); |
| inline int toUpperCase(int c)__attribute__((always_inline)); |
| #elif defined ( __ICCARM__ ) |
| #endif |
| |
| // Checks for an alphanumeric character. |
| // It is equivalent to (isalpha(c) || isdigit(c)). |
| inline boolean isAlphaNumeric(int c) |
| { |
| return ( isalnum(c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for an alphabetic character. |
| // It is equivalent to (isupper(c) || islower(c)). |
| inline boolean isAlpha(int c) |
| { |
| return ( isalpha(c) == 0 ? false : true); |
| } |
| |
| |
| // Checks whether c is a 7-bit unsigned char value |
| // that fits into the ASCII character set. |
| inline boolean isAscii(int c) |
| { |
| /* return ( isascii(c) == 0 ? false : true); */ |
| return ( (c & ~0x7f) != 0 ? false : true); |
| } |
| |
| |
| // Checks for a blank character, that is, a space or a tab. |
| inline boolean isWhitespace(int c) |
| { |
| return ( isblank (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for a control character. |
| inline boolean isControl(int c) |
| { |
| return ( iscntrl (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for a digit (0 through 9). |
| inline boolean isDigit(int c) |
| { |
| return ( isdigit (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for any printable character except space. |
| inline boolean isGraph(int c) |
| { |
| return ( isgraph (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for a lower-case character. |
| inline boolean isLowerCase(int c) |
| { |
| return (islower (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for any printable character including space. |
| inline boolean isPrintable(int c) |
| { |
| return ( isprint (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for any printable character which is not a space |
| // or an alphanumeric character. |
| inline boolean isPunct(int c) |
| { |
| return ( ispunct (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for white-space characters. For the avr-libc library, |
| // these are: space, formfeed ('\f'), newline ('\n'), carriage |
| // return ('\r'), horizontal tab ('\t'), and vertical tab ('\v'). |
| inline boolean isSpace(int c) |
| { |
| return ( isspace (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for an uppercase letter. |
| inline boolean isUpperCase(int c) |
| { |
| return ( isupper (c) == 0 ? false : true); |
| } |
| |
| |
| // Checks for a hexadecimal digits, i.e. one of 0 1 2 3 4 5 6 7 |
| // 8 9 a b c d e f A B C D E F. |
| inline boolean isHexadecimalDigit(int c) |
| { |
| return ( isxdigit (c) == 0 ? false : true); |
| } |
| |
| |
| // Converts c to a 7-bit unsigned char value that fits into the |
| // ASCII character set, by clearing the high-order bits. |
| inline int toAscii(int c) |
| { |
| /* return toascii (c); */ |
| return (c & 0x7f); |
| } |
| |
| |
| // Warning: |
| // Many people will be unhappy if you use this function. |
| // This function will convert accented letters into random |
| // characters. |
| |
| // Converts the letter c to lower case, if possible. |
| inline int toLowerCase(int c) |
| { |
| return tolower (c); |
| } |
| |
| |
| // Converts the letter c to upper case, if possible. |
| inline int toUpperCase(int c) |
| { |
| return toupper (c); |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |