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164 lines
6.8 KiB
C
164 lines
6.8 KiB
C
/* <ctype.h> replacement macros.
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Copyright (C) 2000 Free Software Foundation, Inc.
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Contributed by Zack Weinberg <zackw@stanford.edu>.
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This file is part of the libiberty library.
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Libiberty is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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Libiberty is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with libiberty; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This is a compatible replacement of the standard C library's <ctype.h>
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with the following properties:
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- Implements all isxxx() macros required by C99.
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- Also implements some character classes useful when
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parsing C-like languages.
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- Does not change behavior depending on the current locale.
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- Behaves properly for all values in the range of a signed or
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unsigned char. */
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#include "ansidecl.h"
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#include <safe-ctype.h>
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#include <stdio.h> /* for EOF */
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/* Shorthand */
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#define bl _sch_isblank
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#define cn _sch_iscntrl
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#define di _sch_isdigit
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#define is _sch_isidst
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#define lo _sch_islower
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#define nv _sch_isnvsp
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#define pn _sch_ispunct
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#define pr _sch_isprint
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#define sp _sch_isspace
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#define up _sch_isupper
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#define vs _sch_isvsp
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#define xd _sch_isxdigit
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/* Masks. */
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#define L (const unsigned short) (lo|is |pr) /* lower case letter */
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#define XL (const unsigned short) (lo|is|xd|pr) /* lowercase hex digit */
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#define U (const unsigned short) (up|is |pr) /* upper case letter */
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#define XU (const unsigned short) (up|is|xd|pr) /* uppercase hex digit */
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#define D (const unsigned short) (di |xd|pr) /* decimal digit */
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#define P (const unsigned short) (pn |pr) /* punctuation */
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#define _ (const unsigned short) (pn|is |pr) /* underscore */
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#define C (const unsigned short) ( cn) /* control character */
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#define Z (const unsigned short) (nv |cn) /* NUL */
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#define M (const unsigned short) (nv|sp |cn) /* cursor movement: \f \v */
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#define V (const unsigned short) (vs|sp |cn) /* vertical space: \r \n */
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#define T (const unsigned short) (nv|sp|bl|cn) /* tab */
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#define S (const unsigned short) (nv|sp|bl|pr) /* space */
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/* Are we ASCII? */
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#if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \
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&& 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21 \
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&& EOF == -1
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const unsigned short _sch_istable[256] =
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{
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Z, C, C, C, C, C, C, C, /* NUL SOH STX ETX EOT ENQ ACK BEL */
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C, T, V, M, M, V, C, C, /* BS HT LF VT FF CR SO SI */
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C, C, C, C, C, C, C, C, /* DLE DC1 DC2 DC3 DC4 NAK SYN ETB */
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C, C, C, C, C, C, C, C, /* CAN EM SUB ESC FS GS RS US */
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S, P, P, P, P, P, P, P, /* SP ! " # $ % & ' */
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P, P, P, P, P, P, P, P, /* ( ) * + , - . / */
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D, D, D, D, D, D, D, D, /* 0 1 2 3 4 5 6 7 */
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D, D, P, P, P, P, P, P, /* 8 9 : ; < = > ? */
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P, XU, XU, XU, XU, XU, XU, U, /* @ A B C D E F G */
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U, U, U, U, U, U, U, U, /* H I J K L M N O */
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U, U, U, U, U, U, U, U, /* P Q R S T U V W */
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U, U, U, P, P, P, P, _, /* X Y Z [ \ ] ^ _ */
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P, XL, XL, XL, XL, XL, XL, L, /* ` a b c d e f g */
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L, L, L, L, L, L, L, L, /* h i j k l m n o */
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L, L, L, L, L, L, L, L, /* p q r s t u v w */
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L, L, L, P, P, P, P, C, /* x y z { | } ~ DEL */
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/* high half of unsigned char is locale-specific, so all tests are
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false in "C" locale */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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};
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const unsigned char _sch_tolower[256] =
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{
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
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64,
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
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'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
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91, 92, 93, 94, 95, 96,
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
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'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
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123,124,125,126,127,
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128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
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144,145,146,147, 148,149,150,151, 152,153,154,155, 156,157,158,159,
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160,161,162,163, 164,165,166,167, 168,169,170,171, 172,173,174,175,
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176,177,178,179, 180,181,182,183, 184,185,186,187, 188,189,190,191,
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192,193,194,195, 196,197,198,199, 200,201,202,203, 204,205,206,207,
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208,209,210,211, 212,213,214,215, 216,217,218,219, 220,221,222,223,
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224,225,226,227, 228,229,230,231, 232,233,234,235, 236,237,238,239,
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240,241,242,243, 244,245,246,247, 248,249,250,251, 252,253,254,255,
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};
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const unsigned char _sch_toupper[256] =
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{
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
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64,
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
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'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
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91, 92, 93, 94, 95, 96,
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
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'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
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123,124,125,126,127,
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128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
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144,145,146,147, 148,149,150,151, 152,153,154,155, 156,157,158,159,
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160,161,162,163, 164,165,166,167, 168,169,170,171, 172,173,174,175,
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176,177,178,179, 180,181,182,183, 184,185,186,187, 188,189,190,191,
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192,193,194,195, 196,197,198,199, 200,201,202,203, 204,205,206,207,
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208,209,210,211, 212,213,214,215, 216,217,218,219, 220,221,222,223,
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224,225,226,227, 228,229,230,231, 232,233,234,235, 236,237,238,239,
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240,241,242,243, 244,245,246,247, 248,249,250,251, 252,253,254,255,
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};
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#else
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#error "Unsupported host character set"
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#endif /* not ASCII */
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