1.\" Copyright (c) 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the American National Standards Committee X3, on Information 6.\" Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 3. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)ispunct.3 8.1 (Berkeley) 6/4/93 33.\" 34.Dd December 19, 2022 35.Dt ISPUNCT 3 36.Os 37.Sh NAME 38.Nm ispunct , 39.Nm ispunct_l 40.Nd punctuation character test 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In ctype.h 45.Ft int 46.Fn ispunct "int c" 47.Ft int 48.Fn ispunct_l "int c" "locale_t loc" 49.Sh DESCRIPTION 50The 51.Fn ispunct 52and 53.Fn ispunct_l 54functions test for any printing character except for space 55.Pq Ql "\ " 56or a 57character for which 58.Xr isalnum 3 59or 60.Xr isalnum_l 3 61is true. 62The value of the argument must be representable as an 63.Vt "unsigned char" 64or the value of 65.Dv EOF . 66.Pp 67In the ASCII character set, this includes the following characters 68(with their numeric values shown in octal): 69.Bl -column \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ 70.It "\&041\ ``!''" Ta "042\ ``""''" Ta "043\ ``#''" Ta "044\ ``$''" Ta "045\ ``%''" 71.It "\&046\ ``&''" Ta "047\ ``'''" Ta "050\ ``(''" Ta "051\ ``)''" Ta "052\ ``*''" 72.It "\&053\ ``+''" Ta "054\ ``,''" Ta "055\ ``-''" Ta "056\ ``.''" Ta "057\ ``/''" 73.It "\&072\ ``:''" Ta "073\ ``;''" Ta "074\ ``<''" Ta "075\ ``=''" Ta "076\ ``>''" 74.It "\&077\ ``?''" Ta "100\ ``@''" Ta "133\ ``[''" Ta "134\ ``\e\|''" Ta "135\ ``]''" 75.It "\&136\ ``^''" Ta "137\ ``_''" Ta "140\ ```''" Ta "173\ ``{''" Ta "174\ ``|''" 76.It "\&175\ ``}''" Ta "176\ ``~''" Ta \& Ta \& Ta \& 77.El 78.Pp 79The 80.Fn ispunct_l 81function takes an explicit locale argument, whereas the 82.Fn ispunct 83function uses the current global or per-thread locale. 84.Sh RETURN VALUES 85The 86.Fn ispunct 87and 88.Fn ispunct_l 89functions return zero if the character tests false and 90return non-zero if the character tests true. 91.Sh COMPATIBILITY 92The 93.Bx 4.4 94extension of accepting arguments outside of the range of the 95.Vt "unsigned char" 96type in locales with large character sets is considered obsolete 97and may not be supported in future releases. 98The 99.Fn iswpunct 100or 101.Fn iswpunct_l 102function should be used instead. 103.Sh SEE ALSO 104.Xr ctype 3 , 105.Xr ctype_l 3 , 106.Xr iswpunct 3 , 107.Xr iswpunct_l 3 , 108.Xr xlocale 3 , 109.Xr ascii 7 110.Sh STANDARDS 111The 112.Fn ispunct 113function conforms to 114.St -isoC . 115The 116.Fn ispunct_l 117function conforms to 118.St -p1003.1-2008 . 119.Sh HISTORY 120The 121.Fn ispunct 122function first appeared in 123.At v7 . 124