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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 | |||
22 | #include <ll/ctype.h> |
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23 | #include <ll/i386/string.h> |
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24 | |||
25 | FILE(strbase); |
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26 | |||
27 | int isalnum(char c) |
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28 | { |
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29 | return (isalpha(c) || isdigit(c)); |
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30 | } |
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31 | |||
32 | int isalpha(char c) |
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33 | { |
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34 | if ((c >= 'A' && c <= 'z')) |
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35 | return(1); |
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36 | else return(0); |
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37 | } |
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38 | |||
39 | int iscntrl(char c) |
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40 | { |
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41 | if (c < '0') { |
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42 | return 1; |
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43 | } else { |
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44 | return 0; |
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45 | } |
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46 | } |
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47 | |||
48 | |||
49 | int islower(char c) |
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50 | { |
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51 | if ((c >= 'a' && c <= 'z')) |
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52 | return(1); |
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53 | else return(0); |
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54 | } |
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55 | |||
56 | int isspace(char c) |
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57 | { |
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58 | if ((c >= 0x09 && c <= 0x0d) || (c == 0x20)) return(1); |
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59 | return(0); |
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60 | } |
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61 | |||
62 | int isupper(char c) |
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63 | { |
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64 | if ((c >= 'A' && c <= 'Z')) |
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65 | return(1); |
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66 | else return(0); |
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67 | } |
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68 | |||
69 | char toupper(char c) |
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70 | { |
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71 | if (c >= 'a' && c <= 'z') return(c-'a'+'A'); |
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72 | else return(c); |
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73 | } |
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74 | |||
75 | char tolower(char c) |
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76 | { |
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77 | if (c >= 'A' && c <= 'Z') return(c-'A'+'a'); |
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78 | else return(c); |
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79 | } |