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Rev | Author | Line No. | Line |
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1870 | serge | 1 | #ifndef _LINUX_CTYPE_H |
2 | #define _LINUX_CTYPE_H |
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3 | |||
4 | /* |
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5 | * NOTE! This ctype does not handle EOF like the standard C |
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6 | * library is required to. |
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7 | */ |
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8 | |||
9 | #define _U 0x01 /* upper */ |
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10 | #define _L 0x02 /* lower */ |
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11 | #define _D 0x04 /* digit */ |
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12 | #define _C 0x08 /* cntrl */ |
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13 | #define _P 0x10 /* punct */ |
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14 | #define _S 0x20 /* white space (space/lf/tab) */ |
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15 | #define _X 0x40 /* hex digit */ |
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16 | #define _SP 0x80 /* hard space (0x20) */ |
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17 | |||
18 | extern const unsigned char _ctype[]; |
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19 | |||
20 | #define __ismask(x) (_ctype[(int)(unsigned char)(x)]) |
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21 | |||
22 | #define isalnum(c) ((__ismask(c)&(_U|_L|_D)) != 0) |
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23 | #define isalpha(c) ((__ismask(c)&(_U|_L)) != 0) |
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24 | #define iscntrl(c) ((__ismask(c)&(_C)) != 0) |
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25 | #define isdigit(c) ((__ismask(c)&(_D)) != 0) |
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26 | #define isgraph(c) ((__ismask(c)&(_P|_U|_L|_D)) != 0) |
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27 | #define islower(c) ((__ismask(c)&(_L)) != 0) |
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28 | #define isprint(c) ((__ismask(c)&(_P|_U|_L|_D|_SP)) != 0) |
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29 | #define ispunct(c) ((__ismask(c)&(_P)) != 0) |
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30 | /* Note: isspace() must return false for %NUL-terminator */ |
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31 | #define isspace(c) ((__ismask(c)&(_S)) != 0) |
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32 | #define isupper(c) ((__ismask(c)&(_U)) != 0) |
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33 | #define isxdigit(c) ((__ismask(c)&(_D|_X)) != 0) |
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34 | |||
35 | #define isascii(c) (((unsigned char)(c))<=0x7f) |
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36 | #define toascii(c) (((unsigned char)(c))&0x7f) |
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37 | |||
38 | static inline unsigned char __tolower(unsigned char c) |
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39 | { |
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40 | if (isupper(c)) |
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41 | c -= 'A'-'a'; |
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42 | return c; |
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43 | } |
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44 | |||
45 | static inline unsigned char __toupper(unsigned char c) |
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46 | { |
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47 | if (islower(c)) |
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48 | c -= 'a'-'A'; |
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49 | return c; |
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50 | } |
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51 | |||
52 | #define tolower(c) __tolower(c) |
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53 | #define toupper(c) __toupper(c) |
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54 | |||
2967 | Serge | 55 | /* |
56 | * Fast implementation of tolower() for internal usage. Do not use in your |
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57 | * code. |
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58 | */ |
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59 | static inline char _tolower(const char c) |
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60 | { |
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61 | return c | 0x20; |
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62 | } |
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63 | |||
4065 | Serge | 64 | /* Fast check for octal digit */ |
65 | static inline int isodigit(const char c) |
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66 | { |
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67 | return c >= '0' && c <= '7'; |
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68 | } |
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69 | |||
1870 | serge | 70 | #endif=>=0x7f) |