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lxdream.org :: lxdream/src/xlat/disasm/safe-ctype.c
lxdream 0.9.1
released Jun 29
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filename src/xlat/disasm/safe-ctype.c
changeset 1265:7c6c5d26fd2e
author nkeynes
date Tue Mar 06 12:42:33 2012 +1000 (8 years ago)
permissions -rw-r--r--
last change Merge ARM disassembler from binutils 2.22
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     1 /* <ctype.h> replacement macros.
     3    Copyright (C) 2000, 2001, 2002, 2003, 2004,
     4    2005 Free Software Foundation, Inc.
     5    Contributed by Zack Weinberg <zackw@stanford.edu>.
     7 This file is part of the libiberty library.
     8 Libiberty is free software; you can redistribute it and/or
     9 modify it under the terms of the GNU Library General Public
    10 License as published by the Free Software Foundation; either
    11 version 2 of the License, or (at your option) any later version.
    13 Libiberty is distributed in the hope that it will be useful,
    14 but WITHOUT ANY WARRANTY; without even the implied warranty of
    15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    16 Library General Public License for more details.
    18 You should have received a copy of the GNU Library General Public
    19 License along with libiberty; see the file COPYING.LIB.  If
    20 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
    21 Boston, MA 02110-1301, USA.  */
    23 /*
    25 @defvr Extension HOST_CHARSET
    26 This macro indicates the basic character set and encoding used by the
    27 host: more precisely, the encoding used for character constants in
    28 preprocessor @samp{#if} statements (the C "execution character set").
    29 It is defined by @file{safe-ctype.h}, and will be an integer constant
    30 with one of the following values:
    32 @ftable @code
    33 @item HOST_CHARSET_UNKNOWN
    34 The host character set is unknown - that is, not one of the next two
    35 possibilities.
    37 @item HOST_CHARSET_ASCII
    38 The host character set is ASCII.
    40 @item HOST_CHARSET_EBCDIC
    41 The host character set is some variant of EBCDIC.  (Only one of the
    42 nineteen EBCDIC varying characters is tested; exercise caution.)
    43 @end ftable
    44 @end defvr
    46 @deffn  Extension ISALPHA  (@var{c})
    47 @deffnx Extension ISALNUM  (@var{c})
    48 @deffnx Extension ISBLANK  (@var{c})
    49 @deffnx Extension ISCNTRL  (@var{c})
    50 @deffnx Extension ISDIGIT  (@var{c})
    51 @deffnx Extension ISGRAPH  (@var{c})
    52 @deffnx Extension ISLOWER  (@var{c})
    53 @deffnx Extension ISPRINT  (@var{c})
    54 @deffnx Extension ISPUNCT  (@var{c})
    55 @deffnx Extension ISSPACE  (@var{c})
    56 @deffnx Extension ISUPPER  (@var{c})
    57 @deffnx Extension ISXDIGIT (@var{c})
    59 These twelve macros are defined by @file{safe-ctype.h}.  Each has the
    60 same meaning as the corresponding macro (with name in lowercase)
    61 defined by the standard header @file{ctype.h}.  For example,
    62 @code{ISALPHA} returns true for alphabetic characters and false for
    63 others.  However, there are two differences between these macros and
    64 those provided by @file{ctype.h}:
    66 @itemize @bullet
    67 @item These macros are guaranteed to have well-defined behavior for all 
    68 values representable by @code{signed char} and @code{unsigned char}, and
    69 for @code{EOF}.
    71 @item These macros ignore the current locale; they are true for these
    72 fixed sets of characters:
    73 @multitable {@code{XDIGIT}} {yada yada yada yada yada yada yada yada}
    74 @item @code{ALPHA}  @tab @kbd{A-Za-z}
    75 @item @code{ALNUM}  @tab @kbd{A-Za-z0-9}
    76 @item @code{BLANK}  @tab @kbd{space tab}
    77 @item @code{CNTRL}  @tab @code{!PRINT}
    78 @item @code{DIGIT}  @tab @kbd{0-9}
    79 @item @code{GRAPH}  @tab @code{ALNUM || PUNCT}
    80 @item @code{LOWER}  @tab @kbd{a-z}
    81 @item @code{PRINT}  @tab @code{GRAPH ||} @kbd{space}
    82 @item @code{PUNCT}  @tab @kbd{`~!@@#$%^&*()_-=+[@{]@}\|;:'",<.>/?}
    83 @item @code{SPACE}  @tab @kbd{space tab \n \r \f \v}
    84 @item @code{UPPER}  @tab @kbd{A-Z}
    85 @item @code{XDIGIT} @tab @kbd{0-9A-Fa-f}
    86 @end multitable
    88 Note that, if the host character set is ASCII or a superset thereof,
    89 all these macros will return false for all values of @code{char} outside
    90 the range of 7-bit ASCII.  In particular, both ISPRINT and ISCNTRL return
    91 false for characters with numeric values from 128 to 255.
    92 @end itemize
    93 @end deffn
    95 @deffn  Extension ISIDNUM         (@var{c})
    96 @deffnx Extension ISIDST          (@var{c})
    97 @deffnx Extension IS_VSPACE       (@var{c})
    98 @deffnx Extension IS_NVSPACE      (@var{c})
    99 @deffnx Extension IS_SPACE_OR_NUL (@var{c})
   100 @deffnx Extension IS_ISOBASIC     (@var{c})
   101 These six macros are defined by @file{safe-ctype.h} and provide
   102 additional character classes which are useful when doing lexical
   103 analysis of C or similar languages.  They are true for the following
   104 sets of characters:
   106 @multitable {@code{SPACE_OR_NUL}} {yada yada yada yada yada yada yada yada}
   107 @item @code{IDNUM}        @tab @kbd{A-Za-z0-9_}
   108 @item @code{IDST}         @tab @kbd{A-Za-z_}
   109 @item @code{VSPACE}       @tab @kbd{\r \n}
   110 @item @code{NVSPACE}      @tab @kbd{space tab \f \v \0}
   111 @item @code{SPACE_OR_NUL} @tab @code{VSPACE || NVSPACE}
   112 @item @code{ISOBASIC}     @tab @code{VSPACE || NVSPACE || PRINT}
   113 @end multitable
   114 @end deffn
   116 */
   118 #include "ansidecl.h"
   119 #include "xlat/disasm/safe-ctype.h"
   120 #include <stdio.h>  /* for EOF */
   122 #if EOF != -1
   123  #error "<safe-ctype.h> requires EOF == -1"
   124 #endif
   126 /* Shorthand */
   127 #define bl _sch_isblank
   128 #define cn _sch_iscntrl
   129 #define di _sch_isdigit
   130 #define is _sch_isidst
   131 #define lo _sch_islower
   132 #define nv _sch_isnvsp
   133 #define pn _sch_ispunct
   134 #define pr _sch_isprint
   135 #define sp _sch_isspace
   136 #define up _sch_isupper
   137 #define vs _sch_isvsp
   138 #define xd _sch_isxdigit
   140 /* Masks.  */
   141 #define L  (const unsigned short) (lo|is   |pr)	/* lower case letter */
   142 #define XL (const unsigned short) (lo|is|xd|pr)	/* lowercase hex digit */
   143 #define U  (const unsigned short) (up|is   |pr)	/* upper case letter */
   144 #define XU (const unsigned short) (up|is|xd|pr)	/* uppercase hex digit */
   145 #define D  (const unsigned short) (di   |xd|pr)	/* decimal digit */
   146 #define P  (const unsigned short) (pn      |pr)	/* punctuation */
   147 #define _  (const unsigned short) (pn|is   |pr)	/* underscore */
   149 #define C  (const unsigned short) (         cn)	/* control character */
   150 #define Z  (const unsigned short) (nv      |cn)	/* NUL */
   151 #define M  (const unsigned short) (nv|sp   |cn)	/* cursor movement: \f \v */
   152 #define V  (const unsigned short) (vs|sp   |cn)	/* vertical space: \r \n */
   153 #define T  (const unsigned short) (nv|sp|bl|cn)	/* tab */
   154 #define S  (const unsigned short) (nv|sp|bl|pr)	/* space */
   156 /* Are we ASCII? */
   157 #if HOST_CHARSET == HOST_CHARSET_ASCII
   159 const unsigned short _sch_istable[256] =
   160 {
   161   Z,  C,  C,  C,   C,  C,  C,  C,   /* NUL SOH STX ETX  EOT ENQ ACK BEL */
   162   C,  T,  V,  M,   M,  V,  C,  C,   /* BS  HT  LF  VT   FF  CR  SO  SI  */
   163   C,  C,  C,  C,   C,  C,  C,  C,   /* DLE DC1 DC2 DC3  DC4 NAK SYN ETB */
   164   C,  C,  C,  C,   C,  C,  C,  C,   /* CAN EM  SUB ESC  FS  GS  RS  US  */
   165   S,  P,  P,  P,   P,  P,  P,  P,   /* SP  !   "   #    $   %   &   '   */
   166   P,  P,  P,  P,   P,  P,  P,  P,   /* (   )   *   +    ,   -   .   /   */
   167   D,  D,  D,  D,   D,  D,  D,  D,   /* 0   1   2   3    4   5   6   7   */
   168   D,  D,  P,  P,   P,  P,  P,  P,   /* 8   9   :   ;    <   =   >   ?   */
   169   P, XU, XU, XU,  XU, XU, XU,  U,   /* @   A   B   C    D   E   F   G   */
   170   U,  U,  U,  U,   U,  U,  U,  U,   /* H   I   J   K    L   M   N   O   */
   171   U,  U,  U,  U,   U,  U,  U,  U,   /* P   Q   R   S    T   U   V   W   */
   172   U,  U,  U,  P,   P,  P,  P,  _,   /* X   Y   Z   [    \   ]   ^   _   */
   173   P, XL, XL, XL,  XL, XL, XL,  L,   /* `   a   b   c    d   e   f   g   */
   174   L,  L,  L,  L,   L,  L,  L,  L,   /* h   i   j   k    l   m   n   o   */
   175   L,  L,  L,  L,   L,  L,  L,  L,   /* p   q   r   s    t   u   v   w   */
   176   L,  L,  L,  P,   P,  P,  P,  C,   /* x   y   z   {    |   }   ~   DEL */
   178   /* high half of unsigned char is locale-specific, so all tests are
   179      false in "C" locale */
   180   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,
   181   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,
   182   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,
   183   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,
   185   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,
   186   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,
   187   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,
   188   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,
   189 };
   191 const unsigned char _sch_tolower[256] =
   192 {
   193    0,  1,  2,  3,   4,  5,  6,  7,   8,  9, 10, 11,  12, 13, 14, 15,
   194   16, 17, 18, 19,  20, 21, 22, 23,  24, 25, 26, 27,  28, 29, 30, 31,
   195   32, 33, 34, 35,  36, 37, 38, 39,  40, 41, 42, 43,  44, 45, 46, 47,
   196   48, 49, 50, 51,  52, 53, 54, 55,  56, 57, 58, 59,  60, 61, 62, 63,
   197   64,
   199   'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
   200   'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
   202   91, 92, 93, 94, 95, 96,
   204   'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
   205   'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
   207  123,124,125,126,127,
   209  128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
   210  144,145,146,147, 148,149,150,151, 152,153,154,155, 156,157,158,159,
   211  160,161,162,163, 164,165,166,167, 168,169,170,171, 172,173,174,175,
   212  176,177,178,179, 180,181,182,183, 184,185,186,187, 188,189,190,191,
   214  192,193,194,195, 196,197,198,199, 200,201,202,203, 204,205,206,207,
   215  208,209,210,211, 212,213,214,215, 216,217,218,219, 220,221,222,223,
   216  224,225,226,227, 228,229,230,231, 232,233,234,235, 236,237,238,239,
   217  240,241,242,243, 244,245,246,247, 248,249,250,251, 252,253,254,255,
   218 };
   220 const unsigned char _sch_toupper[256] =
   221 {
   222    0,  1,  2,  3,   4,  5,  6,  7,   8,  9, 10, 11,  12, 13, 14, 15,
   223   16, 17, 18, 19,  20, 21, 22, 23,  24, 25, 26, 27,  28, 29, 30, 31,
   224   32, 33, 34, 35,  36, 37, 38, 39,  40, 41, 42, 43,  44, 45, 46, 47,
   225   48, 49, 50, 51,  52, 53, 54, 55,  56, 57, 58, 59,  60, 61, 62, 63,
   226   64,
   228   'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
   229   'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
   231   91, 92, 93, 94, 95, 96,
   233   'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
   234   'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
   236  123,124,125,126,127,
   238  128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
   239  144,145,146,147, 148,149,150,151, 152,153,154,155, 156,157,158,159,
   240  160,161,162,163, 164,165,166,167, 168,169,170,171, 172,173,174,175,
   241  176,177,178,179, 180,181,182,183, 184,185,186,187, 188,189,190,191,
   243  192,193,194,195, 196,197,198,199, 200,201,202,203, 204,205,206,207,
   244  208,209,210,211, 212,213,214,215, 216,217,218,219, 220,221,222,223,
   245  224,225,226,227, 228,229,230,231, 232,233,234,235, 236,237,238,239,
   246  240,241,242,243, 244,245,246,247, 248,249,250,251, 252,253,254,255,
   247 };
   249 #else
   250 # if HOST_CHARSET == HOST_CHARSET_EBCDIC
   251   #error "FIXME: write tables for EBCDIC"
   252 # else
   253   #error "Unrecognized host character set"
   254 # endif
   255 #endif
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