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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | /* Project: OSLib |
| 2 | * Description: The OS Construction Kit |
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| 3 | * Date: 1.6.2000 |
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| 4 | * Idea by: Luca Abeni & Gerardo Lamastra |
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| 5 | * |
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| 6 | * OSLib is an SO project aimed at developing a common, easy-to-use |
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| 7 | * low-level infrastructure for developing OS kernels and Embedded |
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| 8 | * Applications; it partially derives from the HARTIK project but it |
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| 9 | * currently is independently developed. |
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| 10 | * |
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| 11 | * OSLib is distributed under GPL License, and some of its code has |
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| 12 | * been derived from the Linux kernel source; also some important |
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| 13 | * ideas come from studying the DJGPP go32 extender. |
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| 14 | * |
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| 15 | * We acknowledge the Linux Community, Free Software Foundation, |
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| 16 | * D.J. Delorie and all the other developers who believe in the |
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| 17 | * freedom of software and ideas. |
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| 18 | * |
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| 19 | * For legalese, check out the included GPL license. |
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| 20 | */ |
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| 21 | |||
| 1621 | fabio | 22 | #include <arch/ctype.h> |
| 23 | #include <arch/i386/string.h> |
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| 2 | pj | 24 | |
| 25 | FILE(strnum); |
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| 26 | |||
| 27 | int isnumber(char c,int base) |
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| 28 | { |
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| 29 | static char *digits = "0123456789ABCDEF"; |
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| 30 | if ((c >= '0' && c <= digits[base-1])) |
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| 31 | return(1); |
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| 32 | else return(0); |
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| 33 | } |
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| 34 | |||
| 35 | int tonumber(char c) |
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| 36 | { |
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| 37 | if (c >= '0' && c <= '9') return(c - '0'); |
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| 38 | else if (c >= 'A' && c <= 'F') return(c - 'A' + 10); |
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| 39 | else if (c >= 'a' && c <= 'f') return(c - 'a' + 10); |
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| 40 | else return(c); |
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| 41 | } |
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| 42 | |||
| 43 | char todigit(int c) |
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| 44 | { |
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| 45 | if (c >= 0 && c <= 9) return(c+'0'); |
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| 46 | else if (c >= 10 && c <= 15) return(c + 'A' - 10); |
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| 47 | else return(c); |
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| 48 | } |
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| 49 | |||
| 50 | int isxdigit(char c) |
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| 51 | { |
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| 52 | if ((c >= '0' && c <= 'F') || (c >= 'a' && c <= 'f')) |
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| 53 | return(1); |
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| 54 | else return(0); |
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| 55 | } |
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| 56 | |||
| 57 | int isdigit(char c) |
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| 58 | { |
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| 59 | if ((c >= '0' && c <= '9')) |
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| 60 | return(1); |
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| 61 | else return(0); |
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| 62 | } |