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.Dd December 19, 2022 33.Dt ISPUNCT 3 34.Os 35.Sh NAME 36.Nm ispunct , 37.Nm ispunct_l 38.Nd punctuation character test 39.Sh LIBRARY 40.Lb libc 41.Sh SYNOPSIS 42.In ctype.h 43.Ft int 44.Fn ispunct "int c" 45.Ft int 46.Fn ispunct_l "int c" "locale_t loc" 47.Sh DESCRIPTION 48The 49.Fn ispunct 50and 51.Fn ispunct_l 52functions test for any printing character except for space 53.Pq Ql "\ " 54or a 55character for which 56.Xr isalnum 3 57or 58.Xr isalnum_l 3 59is true. 60The value of the argument must be representable as an 61.Vt "unsigned char" 62or the value of 63.Dv EOF . 64.Pp 65In the ASCII character set, this includes the following characters 66(with their numeric values shown in octal): 67.Bl -column \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ 68.It "\&041\ ``!''" Ta "042\ ``""''" Ta "043\ ``#''" Ta "044\ ``$''" Ta "045\ ``%''" 69.It "\&046\ ``&''" Ta "047\ ``'''" Ta "050\ ``(''" Ta "051\ ``)''" Ta "052\ ``*''" 70.It "\&053\ ``+''" Ta "054\ ``,''" Ta "055\ ``-''" Ta "056\ ``.''" Ta "057\ ``/''" 71.It "\&072\ ``:''" Ta "073\ ``;''" Ta "074\ ``<''" Ta "075\ ``=''" Ta "076\ ``>''" 72.It "\&077\ ``?''" Ta "100\ ``@''" Ta "133\ ``[''" Ta "134\ ``\e\|''" Ta "135\ ``]''" 73.It "\&136\ ``^''" Ta "137\ ``_''" Ta "140\ ```''" Ta "173\ ``{''" Ta "174\ ``|''" 74.It "\&175\ ``}''" Ta "176\ ``~''" Ta \& Ta \& Ta \& 75.El 76.Pp 77The 78.Fn ispunct_l 79function takes an explicit locale argument, whereas the 80.Fn ispunct 81function uses the current global or per-thread locale. 82.Sh RETURN VALUES 83The 84.Fn ispunct 85and 86.Fn ispunct_l 87functions return zero if the character tests false and 88return non-zero if the character tests true. 89.Sh COMPATIBILITY 90The 91.Bx 4.4 92extension of accepting arguments outside of the range of the 93.Vt "unsigned char" 94type in locales with large character sets is considered obsolete 95and may not be supported in future releases. 96The 97.Fn iswpunct 98or 99.Fn iswpunct_l 100function should be used instead. 101.Sh SEE ALSO 102.Xr ctype 3 , 103.Xr ctype_l 3 , 104.Xr iswpunct 3 , 105.Xr iswpunct_l 3 , 106.Xr xlocale 3 , 107.Xr ascii 7 108.Sh STANDARDS 109The 110.Fn ispunct 111function conforms to 112.St -isoC . 113The 114.Fn ispunct_l 115function conforms to 116.St -p1003.1-2008 . 117.Sh HISTORY 118The 119.Fn ispunct 120function first appeared in 121.At v7 . 122