Mercurial > projects > ldc
annotate druntime/src/compiler/ldc/util/ctype.d @ 1458:e0b2d67cfe7c
Added druntime (this should be removed once it works).
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Tue, 02 Jun 2009 17:43:06 +0100 |
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1458
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1 /** |
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2 * Simple ASCII char classification functions. |
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3 * |
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4 * Copyright: Copyright Digital Mars 2004 - 2009. |
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5 * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>. |
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6 * Authors: Walter Bright |
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7 * |
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8 * Copyright Digital Mars 2004 - 2009. |
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9 * Distributed under the Boost Software License, Version 1.0. |
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10 * (See accompanying file LICENSE_1_0.txt or copy at |
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11 * http://www.boost.org/LICENSE_1_0.txt) |
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12 */ |
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13 module rt.util.ctype; |
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14 |
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15 int isalnum(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_ALP|_DIG) : 0; } |
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16 int isalpha(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_ALP) : 0; } |
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17 int iscntrl(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_CTL) : 0; } |
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18 int isdigit(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_DIG) : 0; } |
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19 int islower(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_LC) : 0; } |
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20 int ispunct(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_PNC) : 0; } |
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21 int isspace(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_SPC) : 0; } |
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22 int isupper(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_UC) : 0; } |
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23 int isxdigit(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_HEX) : 0; } |
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24 int isgraph(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_ALP|_DIG|_PNC) : 0; } |
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25 int isprint(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_ALP|_DIG|_PNC|_BLK) : 0; } |
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26 int isascii(dchar c) { return c <= 0x7F; } |
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27 |
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28 dchar tolower(dchar c) |
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29 out (result) |
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30 { |
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31 assert(!isupper(result)); |
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32 } |
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33 body |
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34 { |
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35 return isupper(c) ? c + (cast(dchar)'a' - 'A') : c; |
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36 } |
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37 |
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38 dchar toupper(dchar c) |
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39 out (result) |
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40 { |
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41 assert(!islower(result)); |
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42 } |
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43 body |
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44 { |
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45 return islower(c) ? c - (cast(dchar)'a' - 'A') : c; |
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46 } |
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47 |
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48 private: |
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49 |
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50 enum |
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51 { |
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52 _SPC = 8, |
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53 _CTL = 0x20, |
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54 _BLK = 0x40, |
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55 _HEX = 0x80, |
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56 _UC = 1, |
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57 _LC = 2, |
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58 _PNC = 0x10, |
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59 _DIG = 4, |
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60 _ALP = _UC|_LC, |
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61 } |
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62 |
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63 immutable ubyte _ctype[128] = |
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64 [ |
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65 _CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL, |
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66 _CTL,_CTL|_SPC,_CTL|_SPC,_CTL|_SPC,_CTL|_SPC,_CTL|_SPC,_CTL,_CTL, |
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67 _CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL, |
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68 _CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL, |
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69 _SPC|_BLK,_PNC,_PNC,_PNC,_PNC,_PNC,_PNC,_PNC, |
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70 _PNC,_PNC,_PNC,_PNC,_PNC,_PNC,_PNC,_PNC, |
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71 _DIG|_HEX,_DIG|_HEX,_DIG|_HEX,_DIG|_HEX,_DIG|_HEX, |
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72 _DIG|_HEX,_DIG|_HEX,_DIG|_HEX,_DIG|_HEX,_DIG|_HEX, |
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73 _PNC,_PNC,_PNC,_PNC,_PNC,_PNC, |
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74 _PNC,_UC|_HEX,_UC|_HEX,_UC|_HEX,_UC|_HEX,_UC|_HEX,_UC|_HEX,_UC, |
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75 _UC,_UC,_UC,_UC,_UC,_UC,_UC,_UC, |
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76 _UC,_UC,_UC,_UC,_UC,_UC,_UC,_UC, |
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77 _UC,_UC,_UC,_PNC,_PNC,_PNC,_PNC,_PNC, |
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78 _PNC,_LC|_HEX,_LC|_HEX,_LC|_HEX,_LC|_HEX,_LC|_HEX,_LC|_HEX,_LC, |
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79 _LC,_LC,_LC,_LC,_LC,_LC,_LC,_LC, |
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80 _LC,_LC,_LC,_LC,_LC,_LC,_LC,_LC, |
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81 _LC,_LC,_LC,_PNC,_PNC,_PNC,_PNC,_CTL |
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82 ]; |
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83 |
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84 |
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85 unittest |
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86 { |
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87 assert(isspace(' ')); |
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88 assert(!isspace('z')); |
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89 assert(toupper('a') == 'A'); |
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90 assert(tolower('Q') == 'q'); |
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91 assert(!isxdigit('G')); |
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92 } |