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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
file annotate diff log raw
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/xlat/disasm/safe-ctype.c Tue Mar 06 12:42:33 2012 +1000
1.3 @@ -0,0 +1,255 @@
1.4 +/* <ctype.h> replacement macros.
1.5 +
1.6 + Copyright (C) 2000, 2001, 2002, 2003, 2004,
1.7 + 2005 Free Software Foundation, Inc.
1.8 + Contributed by Zack Weinberg <zackw@stanford.edu>.
1.9 +
1.10 +This file is part of the libiberty library.
1.11 +Libiberty is free software; you can redistribute it and/or
1.12 +modify it under the terms of the GNU Library General Public
1.13 +License as published by the Free Software Foundation; either
1.14 +version 2 of the License, or (at your option) any later version.
1.15 +
1.16 +Libiberty is distributed in the hope that it will be useful,
1.17 +but WITHOUT ANY WARRANTY; without even the implied warranty of
1.18 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1.19 +Library General Public License for more details.
1.20 +
1.21 +You should have received a copy of the GNU Library General Public
1.22 +License along with libiberty; see the file COPYING.LIB. If
1.23 +not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
1.24 +Boston, MA 02110-1301, USA. */
1.25 +
1.26 +/*
1.27 +
1.28 +@defvr Extension HOST_CHARSET
1.29 +This macro indicates the basic character set and encoding used by the
1.30 +host: more precisely, the encoding used for character constants in
1.31 +preprocessor @samp{#if} statements (the C "execution character set").
1.32 +It is defined by @file{safe-ctype.h}, and will be an integer constant
1.33 +with one of the following values:
1.34 +
1.35 +@ftable @code
1.36 +@item HOST_CHARSET_UNKNOWN
1.37 +The host character set is unknown - that is, not one of the next two
1.38 +possibilities.
1.39 +
1.40 +@item HOST_CHARSET_ASCII
1.41 +The host character set is ASCII.
1.42 +
1.43 +@item HOST_CHARSET_EBCDIC
1.44 +The host character set is some variant of EBCDIC. (Only one of the
1.45 +nineteen EBCDIC varying characters is tested; exercise caution.)
1.46 +@end ftable
1.47 +@end defvr
1.48 +
1.49 +@deffn Extension ISALPHA (@var{c})
1.50 +@deffnx Extension ISALNUM (@var{c})
1.51 +@deffnx Extension ISBLANK (@var{c})
1.52 +@deffnx Extension ISCNTRL (@var{c})
1.53 +@deffnx Extension ISDIGIT (@var{c})
1.54 +@deffnx Extension ISGRAPH (@var{c})
1.55 +@deffnx Extension ISLOWER (@var{c})
1.56 +@deffnx Extension ISPRINT (@var{c})
1.57 +@deffnx Extension ISPUNCT (@var{c})
1.58 +@deffnx Extension ISSPACE (@var{c})
1.59 +@deffnx Extension ISUPPER (@var{c})
1.60 +@deffnx Extension ISXDIGIT (@var{c})
1.61 +
1.62 +These twelve macros are defined by @file{safe-ctype.h}. Each has the
1.63 +same meaning as the corresponding macro (with name in lowercase)
1.64 +defined by the standard header @file{ctype.h}. For example,
1.65 +@code{ISALPHA} returns true for alphabetic characters and false for
1.66 +others. However, there are two differences between these macros and
1.67 +those provided by @file{ctype.h}:
1.68 +
1.69 +@itemize @bullet
1.70 +@item These macros are guaranteed to have well-defined behavior for all
1.71 +values representable by @code{signed char} and @code{unsigned char}, and
1.72 +for @code{EOF}.
1.73 +
1.74 +@item These macros ignore the current locale; they are true for these
1.75 +fixed sets of characters:
1.76 +@multitable {@code{XDIGIT}} {yada yada yada yada yada yada yada yada}
1.77 +@item @code{ALPHA} @tab @kbd{A-Za-z}
1.78 +@item @code{ALNUM} @tab @kbd{A-Za-z0-9}
1.79 +@item @code{BLANK} @tab @kbd{space tab}
1.80 +@item @code{CNTRL} @tab @code{!PRINT}
1.81 +@item @code{DIGIT} @tab @kbd{0-9}
1.82 +@item @code{GRAPH} @tab @code{ALNUM || PUNCT}
1.83 +@item @code{LOWER} @tab @kbd{a-z}
1.84 +@item @code{PRINT} @tab @code{GRAPH ||} @kbd{space}
1.85 +@item @code{PUNCT} @tab @kbd{`~!@@#$%^&*()_-=+[@{]@}\|;:'",<.>/?}
1.86 +@item @code{SPACE} @tab @kbd{space tab \n \r \f \v}
1.87 +@item @code{UPPER} @tab @kbd{A-Z}
1.88 +@item @code{XDIGIT} @tab @kbd{0-9A-Fa-f}
1.89 +@end multitable
1.90 +
1.91 +Note that, if the host character set is ASCII or a superset thereof,
1.92 +all these macros will return false for all values of @code{char} outside
1.93 +the range of 7-bit ASCII. In particular, both ISPRINT and ISCNTRL return
1.94 +false for characters with numeric values from 128 to 255.
1.95 +@end itemize
1.96 +@end deffn
1.97 +
1.98 +@deffn Extension ISIDNUM (@var{c})
1.99 +@deffnx Extension ISIDST (@var{c})
1.100 +@deffnx Extension IS_VSPACE (@var{c})
1.101 +@deffnx Extension IS_NVSPACE (@var{c})
1.102 +@deffnx Extension IS_SPACE_OR_NUL (@var{c})
1.103 +@deffnx Extension IS_ISOBASIC (@var{c})
1.104 +These six macros are defined by @file{safe-ctype.h} and provide
1.105 +additional character classes which are useful when doing lexical
1.106 +analysis of C or similar languages. They are true for the following
1.107 +sets of characters:
1.108 +
1.109 +@multitable {@code{SPACE_OR_NUL}} {yada yada yada yada yada yada yada yada}
1.110 +@item @code{IDNUM} @tab @kbd{A-Za-z0-9_}
1.111 +@item @code{IDST} @tab @kbd{A-Za-z_}
1.112 +@item @code{VSPACE} @tab @kbd{\r \n}
1.113 +@item @code{NVSPACE} @tab @kbd{space tab \f \v \0}
1.114 +@item @code{SPACE_OR_NUL} @tab @code{VSPACE || NVSPACE}
1.115 +@item @code{ISOBASIC} @tab @code{VSPACE || NVSPACE || PRINT}
1.116 +@end multitable
1.117 +@end deffn
1.118 +
1.119 +*/
1.120 +
1.121 +#include "ansidecl.h"
1.122 +#include "xlat/disasm/safe-ctype.h"
1.123 +#include <stdio.h> /* for EOF */
1.124 +
1.125 +#if EOF != -1
1.126 + #error "<safe-ctype.h> requires EOF == -1"
1.127 +#endif
1.128 +
1.129 +/* Shorthand */
1.130 +#define bl _sch_isblank
1.131 +#define cn _sch_iscntrl
1.132 +#define di _sch_isdigit
1.133 +#define is _sch_isidst
1.134 +#define lo _sch_islower
1.135 +#define nv _sch_isnvsp
1.136 +#define pn _sch_ispunct
1.137 +#define pr _sch_isprint
1.138 +#define sp _sch_isspace
1.139 +#define up _sch_isupper
1.140 +#define vs _sch_isvsp
1.141 +#define xd _sch_isxdigit
1.142 +
1.143 +/* Masks. */
1.144 +#define L (const unsigned short) (lo|is |pr) /* lower case letter */
1.145 +#define XL (const unsigned short) (lo|is|xd|pr) /* lowercase hex digit */
1.146 +#define U (const unsigned short) (up|is |pr) /* upper case letter */
1.147 +#define XU (const unsigned short) (up|is|xd|pr) /* uppercase hex digit */
1.148 +#define D (const unsigned short) (di |xd|pr) /* decimal digit */
1.149 +#define P (const unsigned short) (pn |pr) /* punctuation */
1.150 +#define _ (const unsigned short) (pn|is |pr) /* underscore */
1.151 +
1.152 +#define C (const unsigned short) ( cn) /* control character */
1.153 +#define Z (const unsigned short) (nv |cn) /* NUL */
1.154 +#define M (const unsigned short) (nv|sp |cn) /* cursor movement: \f \v */
1.155 +#define V (const unsigned short) (vs|sp |cn) /* vertical space: \r \n */
1.156 +#define T (const unsigned short) (nv|sp|bl|cn) /* tab */
1.157 +#define S (const unsigned short) (nv|sp|bl|pr) /* space */
1.158 +
1.159 +/* Are we ASCII? */
1.160 +#if HOST_CHARSET == HOST_CHARSET_ASCII
1.161 +
1.162 +const unsigned short _sch_istable[256] =
1.163 +{
1.164 + Z, C, C, C, C, C, C, C, /* NUL SOH STX ETX EOT ENQ ACK BEL */
1.165 + C, T, V, M, M, V, C, C, /* BS HT LF VT FF CR SO SI */
1.166 + C, C, C, C, C, C, C, C, /* DLE DC1 DC2 DC3 DC4 NAK SYN ETB */
1.167 + C, C, C, C, C, C, C, C, /* CAN EM SUB ESC FS GS RS US */
1.168 + S, P, P, P, P, P, P, P, /* SP ! " # $ % & ' */
1.169 + P, P, P, P, P, P, P, P, /* ( ) * + , - . / */
1.170 + D, D, D, D, D, D, D, D, /* 0 1 2 3 4 5 6 7 */
1.171 + D, D, P, P, P, P, P, P, /* 8 9 : ; < = > ? */
1.172 + P, XU, XU, XU, XU, XU, XU, U, /* @ A B C D E F G */
1.173 + U, U, U, U, U, U, U, U, /* H I J K L M N O */
1.174 + U, U, U, U, U, U, U, U, /* P Q R S T U V W */
1.175 + U, U, U, P, P, P, P, _, /* X Y Z [ \ ] ^ _ */
1.176 + P, XL, XL, XL, XL, XL, XL, L, /* ` a b c d e f g */
1.177 + L, L, L, L, L, L, L, L, /* h i j k l m n o */
1.178 + L, L, L, L, L, L, L, L, /* p q r s t u v w */
1.179 + L, L, L, P, P, P, P, C, /* x y z { | } ~ DEL */
1.180 +
1.181 + /* high half of unsigned char is locale-specific, so all tests are
1.182 + false in "C" locale */
1.183 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1.184 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1.185 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1.186 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1.187 +
1.188 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1.189 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1.190 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1.191 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1.192 +};
1.193 +
1.194 +const unsigned char _sch_tolower[256] =
1.195 +{
1.196 + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
1.197 + 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
1.198 + 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
1.199 + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
1.200 + 64,
1.201 +
1.202 + 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
1.203 + 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
1.204 +
1.205 + 91, 92, 93, 94, 95, 96,
1.206 +
1.207 + 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
1.208 + 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
1.209 +
1.210 + 123,124,125,126,127,
1.211 +
1.212 + 128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
1.213 + 144,145,146,147, 148,149,150,151, 152,153,154,155, 156,157,158,159,
1.214 + 160,161,162,163, 164,165,166,167, 168,169,170,171, 172,173,174,175,
1.215 + 176,177,178,179, 180,181,182,183, 184,185,186,187, 188,189,190,191,
1.216 +
1.217 + 192,193,194,195, 196,197,198,199, 200,201,202,203, 204,205,206,207,
1.218 + 208,209,210,211, 212,213,214,215, 216,217,218,219, 220,221,222,223,
1.219 + 224,225,226,227, 228,229,230,231, 232,233,234,235, 236,237,238,239,
1.220 + 240,241,242,243, 244,245,246,247, 248,249,250,251, 252,253,254,255,
1.221 +};
1.222 +
1.223 +const unsigned char _sch_toupper[256] =
1.224 +{
1.225 + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
1.226 + 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
1.227 + 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
1.228 + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
1.229 + 64,
1.230 +
1.231 + 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
1.232 + 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
1.233 +
1.234 + 91, 92, 93, 94, 95, 96,
1.235 +
1.236 + 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
1.237 + 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
1.238 +
1.239 + 123,124,125,126,127,
1.240 +
1.241 + 128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
1.242 + 144,145,146,147, 148,149,150,151, 152,153,154,155, 156,157,158,159,
1.243 + 160,161,162,163, 164,165,166,167, 168,169,170,171, 172,173,174,175,
1.244 + 176,177,178,179, 180,181,182,183, 184,185,186,187, 188,189,190,191,
1.245 +
1.246 + 192,193,194,195, 196,197,198,199, 200,201,202,203, 204,205,206,207,
1.247 + 208,209,210,211, 212,213,214,215, 216,217,218,219, 220,221,222,223,
1.248 + 224,225,226,227, 228,229,230,231, 232,233,234,235, 236,237,238,239,
1.249 + 240,241,242,243, 244,245,246,247, 248,249,250,251, 252,253,254,255,
1.250 +};
1.251 +
1.252 +#else
1.253 +# if HOST_CHARSET == HOST_CHARSET_EBCDIC
1.254 + #error "FIXME: write tables for EBCDIC"
1.255 +# else
1.256 + #error "Unrecognized host character set"
1.257 +# endif
1.258 +#endif
.