include/shmbchar.h

   1 /* Multibyte character data type.
   2    Copyright (C) 2001, 2005-2007, 2009-2010 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>.  */
  18
  19 #ifndef _SHMBCHAR_H
  20 #define _SHMBCHAR_H 1
  21
  22 #if defined (HANDLE_MULTIBYTE)
  23
  24 #include <string.h>
  25
  26 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
  27    <wchar.h>.
  28    BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
  29    <wchar.h>.  */
  30 #include <stdio.h>
  31 #include <time.h>
  32 #include <wchar.h>
  33 #include <wctype.h>
  34
  35
  36 /* is_basic(c) tests whether the single-byte character c is in the
  37    ISO C "basic character set". */
  38
  39 #if (' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
  40     && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
  41     && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
  42     && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \
  43     && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \
  44     && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \
  45     && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \
  46     && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \
  47     && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \
  48     && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \
  49     && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \
  50     && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \
  51     && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \
  52     && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \
  53     && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \
  54     && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \
  55     && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \
  56     && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \
  57     && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \
  58     && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \
  59     && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \
  60     && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
  61     && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126)
  62 /* The character set is ISO-646, not EBCDIC. */
  63 # define IS_BASIC_ASCII 1
  64
  65 extern const unsigned int is_basic_table[];
  66
  67 static inline int
  68 is_basic (char c)
  69 {
  70   return (is_basic_table [(unsigned char) c >> 5] >> ((unsigned char) c & 31))
  71          & 1;
  72 }
  73
  74 #else
  75
  76 static inline int
  77 is_basic (char c)
  78 {
  79   switch (c)
  80     {
  81     case '\b': case '\r': case '\n':
  82     case '\t': case '\v': case '\f':
  83     case ' ': case '!': case '"': case '#': case '%':
  84     case '&': case '\'': case '(': case ')': case '*':
  85     case '+': case ',': case '-': case '.': case '/':
  86     case '0': case '1': case '2': case '3': case '4':
  87     case '5': case '6': case '7': case '8': case '9':
  88     case ':': case ';': case '<': case '=': case '>':
  89     case '?':
  90     case 'A': case 'B': case 'C': case 'D': case 'E':
  91     case 'F': case 'G': case 'H': case 'I': case 'J':
  92     case 'K': case 'L': case 'M': case 'N': case 'O':
  93     case 'P': case 'Q': case 'R': case 'S': case 'T':
  94     case 'U': case 'V': case 'W': case 'X': case 'Y':
  95     case 'Z':
  96     case '[': case '\\': case ']': case '^': case '_':
  97     case 'a': case 'b': case 'c': case 'd': case 'e':
  98     case 'f': case 'g': case 'h': case 'i': case 'j':
  99     case 'k': case 'l': case 'm': case 'n': case 'o':
 100     case 'p': case 'q': case 'r': case 's': case 't':
 101     case 'u': case 'v': case 'w': case 'x': case 'y':
 102     case 'z': case '{': case '|': case '}': case '~':
 103       return 1;
 104     default:
 105       return 0;
 106     }
 107 }
 108
 109 #endif
 110
 111 #endif /* HANDLE_MULTIBYTE */
 112 #endif /* _SHMBCHAR_H */