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| Rev | Author | Line No. | Line |
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| 1173 | cejka | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Josef Cejka |
| 1173 | cejka | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1866 | jermar | 29 | /** @addtogroup libc |
| 1653 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 1866 | jermar | 35 | #ifndef LIBC_CTYPE_H_ |
| 36 | #define LIBC_CTYPE_H_ |
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| 1173 | cejka | 37 | |
| 2526 | jermar | 38 | static inline int islower(int c) |
| 39 | { |
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| 40 | return ((c >= 'a') && (c <= 'z')); |
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| 41 | } |
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| 42 | |||
| 43 | static inline int isupper(int c) |
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| 44 | { |
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| 45 | return ((c >= 'A') && (c <= 'Z')); |
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| 46 | } |
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| 47 | |||
| 2524 | jermar | 48 | static inline int isalpha(int c) |
| 49 | { |
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| 2526 | jermar | 50 | return (islower(c) || isupper(c)); |
| 2524 | jermar | 51 | } |
| 52 | |||
| 1173 | cejka | 53 | static inline int isdigit(int c) |
| 54 | { |
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| 2524 | jermar | 55 | return ((c >= '0') && (c <= '9')); |
| 1173 | cejka | 56 | } |
| 57 | |||
| 2525 | jermar | 58 | static inline int isalnum(int c) |
| 59 | { |
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| 60 | return (isalpha(c) || isdigit(c)); |
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| 61 | } |
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| 62 | |||
| 1314 | cejka | 63 | static inline int isspace(int c) |
| 64 | { |
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| 2525 | jermar | 65 | switch (c) { |
| 2128 | jermar | 66 | case ' ': |
| 67 | case '\n': |
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| 68 | case '\t': |
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| 69 | case '\f': |
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| 70 | case '\r': |
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| 71 | case '\v': |
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| 72 | return 1; |
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| 73 | break; |
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| 74 | default: |
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| 75 | return 0; |
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| 1314 | cejka | 76 | } |
| 77 | } |
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| 78 | |||
| 3425 | svoboda | 79 | static inline int tolower(int c) |
| 80 | { |
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| 81 | if (isupper(c)) |
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| 82 | return (c + ('a' - 'A' > 0 ? 'a' - 'A' : 'A' - 'a')); |
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| 83 | else |
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| 84 | return c; |
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| 85 | } |
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| 86 | |||
| 1173 | cejka | 87 | #endif |
| 88 | |||
| 1866 | jermar | 89 | /** @} |
| 1653 | cejka | 90 | */ |