1 /* <ctype.h> replacement macros.
3 Copyright (C) 2000 Free Software Foundation, Inc.
4 Contributed by Zack Weinberg <zackw@stanford.edu>.
6 This file is part of the libiberty library.
7 Libiberty is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 3 of the License, or (at your option) any later version.
12 Libiberty is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public
18 License along with libiberty. If not, see <http://www.gnu.org/licenses/>.
20 Additional permission under GNU GPL version 3 section 7
22 If you modify this program, or any covered work, by linking or
23 combining it with the OpenSSL project's OpenSSL library (or a
24 modified version of that library), containing parts covered by the
25 terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
26 grants you additional permission to convey the resulting work.
27 Corresponding Source for a non-source form of such a combination
28 shall include the source code for the parts of OpenSSL used as well
29 as that of the covered work. */
31 /* This is a compatible replacement of the standard C library's <ctype.h>
32 with the following properties:
34 - Implements all isxxx() macros required by C99.
35 - Also implements some character classes useful when
36 parsing C-like languages.
37 - Does not change behavior depending on the current locale.
38 - Behaves properly for all values in the range of a signed or
42 #include <safe-ctype.h>
43 #include <stdio.h> /* for EOF */
46 #define bl _sch_isblank
47 #define cn _sch_iscntrl
48 #define di _sch_isdigit
49 #define is _sch_isidst
50 #define lo _sch_islower
51 #define nv _sch_isnvsp
52 #define pn _sch_ispunct
53 #define pr _sch_isprint
54 #define sp _sch_isspace
55 #define up _sch_isupper
57 #define xd _sch_isxdigit
60 #define L lo|is |pr /* lower case letter */
61 #define XL lo|is|xd|pr /* lowercase hex digit */
62 #define U up|is |pr /* upper case letter */
63 #define XU up|is|xd|pr /* uppercase hex digit */
64 #define D di |xd|pr /* decimal digit */
65 #define P pn |pr /* punctuation */
66 #define _ pn|is |pr /* underscore */
68 #define C cn /* control character */
69 #define Z nv |cn /* NUL */
70 #define M nv|sp |cn /* cursor movement: \f \v */
71 #define V vs|sp |cn /* vertical space: \r \n */
72 #define T nv|sp|bl|cn /* tab */
73 #define S nv|sp|bl|pr /* space */
76 #if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \
77 && 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21 \
80 const unsigned short _sch_istable[256] =
82 Z, C, C, C, C, C, C, C, /* NUL SOH STX ETX EOT ENQ ACK BEL */
83 C, T, V, M, M, V, C, C, /* BS HT LF VT FF CR SO SI */
84 C, C, C, C, C, C, C, C, /* DLE DC1 DC2 DC3 DC4 NAK SYN ETB */
85 C, C, C, C, C, C, C, C, /* CAN EM SUB ESC FS GS RS US */
86 S, P, P, P, P, P, P, P, /* SP ! " # $ % & ' */
87 P, P, P, P, P, P, P, P, /* ( ) * + , - . / */
88 D, D, D, D, D, D, D, D, /* 0 1 2 3 4 5 6 7 */
89 D, D, P, P, P, P, P, P, /* 8 9 : ; < = > ? */
90 P, XU, XU, XU, XU, XU, XU, U, /* @ A B C D E F G */
91 U, U, U, U, U, U, U, U, /* H I J K L M N O */
92 U, U, U, U, U, U, U, U, /* P Q R S T U V W */
93 U, U, U, P, P, P, P, _, /* X Y Z [ \ ] ^ _ */
94 P, XL, XL, XL, XL, XL, XL, L, /* ` a b c d e f g */
95 L, L, L, L, L, L, L, L, /* h i j k l m n o */
96 L, L, L, L, L, L, L, L, /* p q r s t u v w */
97 L, L, L, P, P, P, P, C, /* x y z { | } ~ DEL */
99 /* high half of unsigned char is locale-specific, so all tests are
100 false in "C" locale */
101 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
102 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
103 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
104 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
106 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
107 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
108 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
109 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
112 const unsigned char _sch_tolower[256] =
114 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
115 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
116 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
117 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
120 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
121 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
123 91, 92, 93, 94, 95, 96,
125 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
126 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
130 128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
131 144,145,146,147, 148,149,150,151, 152,153,154,155, 156,157,158,159,
132 160,161,162,163, 164,165,166,167, 168,169,170,171, 172,173,174,175,
133 176,177,178,179, 180,181,182,183, 184,185,186,187, 188,189,190,191,
135 192,193,194,195, 196,197,198,199, 200,201,202,203, 204,205,206,207,
136 208,209,210,211, 212,213,214,215, 216,217,218,219, 220,221,222,223,
137 224,225,226,227, 228,229,230,231, 232,233,234,235, 236,237,238,239,
138 240,241,242,243, 244,245,246,247, 248,249,250,251, 252,253,254,255,
141 const unsigned char _sch_toupper[256] =
143 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
144 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
145 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
146 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
149 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
150 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
152 91, 92, 93, 94, 95, 96,
154 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
155 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
159 128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
160 144,145,146,147, 148,149,150,151, 152,153,154,155, 156,157,158,159,
161 160,161,162,163, 164,165,166,167, 168,169,170,171, 172,173,174,175,
162 176,177,178,179, 180,181,182,183, 184,185,186,187, 188,189,190,191,
164 192,193,194,195, 196,197,198,199, 200,201,202,203, 204,205,206,207,
165 208,209,210,211, 212,213,214,215, 216,217,218,219, 220,221,222,223,
166 224,225,226,227, 228,229,230,231, 232,233,234,235, 236,237,238,239,
167 240,241,242,243, 244,245,246,247, 248,249,250,251, 252,253,254,255,
171 #error "Unsupported host character set"
172 #endif /* not ASCII */