=================================================================== RCS file: /cvs/mandoc/apropos.1,v retrieving revision 1.42 retrieving revision 1.50 diff -u -p -r1.42 -r1.50 --- mandoc/apropos.1 2017/03/18 19:51:19 1.42 +++ mandoc/apropos.1 2020/07/20 16:57:29 1.50 @@ -1,7 +1,7 @@ -.\" $Id: apropos.1,v 1.42 2017/03/18 19:51:19 schwarze Exp $ +.\" $Id: apropos.1,v 1.50 2020/07/20 16:57:29 schwarze Exp $ .\" .\" Copyright (c) 2011, 2012 Kristaps Dzonsons -.\" Copyright (c) 2011, 2012, 2014, 2017 Ingo Schwarze +.\" Copyright (c) 2011,2012,2014,2017,2018 Ingo Schwarze .\" .\" Permission to use, copy, modify, and distribute this software for any .\" purpose with or without fee is hereby granted, provided that the above @@ -15,7 +15,7 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: March 18 2017 $ +.Dd $Mdocdate: July 20 2020 $ .Dt APROPOS 1 .Os .Sh NAME @@ -24,7 +24,7 @@ .Nd search manual page databases .Sh SYNOPSIS .Nm -.Op Fl acfhklw +.Op Fl afk .Op Fl C Ar file .Op Fl M Ar path .Op Fl m Ar path @@ -51,8 +51,7 @@ searches for .Xr makewhatis 8 databases in the default paths stipulated by .Xr man 1 -and uses case-insensitive substring matching -.Pq the Cm = No operator +and uses case-insensitive extended regular expression matching over manual names and descriptions .Pq the Li \&Nm No and Li \&Nd No macro keys . Multiple terms imply pairwise @@ -74,7 +73,7 @@ would. If the standard output is a terminal device and .Fl c is not specified, use -.Xr more 1 +.Xr less 1 to paginate them. In .Fl a @@ -89,50 +88,19 @@ Specify an alternative configuration in .Xr man.conf 5 format. -.It Fl c -In -.Fl a -mode, copy the formatted manual pages to the standard output without using -.Xr more 1 -to paginate them. .It Fl f Search for all words in .Ar expression in manual page names only. -The search is case insensitive and matches whole words only. +The search is case-insensitive and matches whole words only. In this mode, macro keys, comparison operators, and logical operators are not available. -This overrides any earlier -.Fl k -and -.Fl l -options. -.It Fl h -Instead of showing the title lines, show the SYNOPSIS sections, just like -.Xr man 1 -.Fl h -would. .It Fl k Support the full .Ar expression syntax. -This overrides any earlier -.Fl f -and -.Fl l -options. It is the default for .Nm . -.It Fl l -An alias for -.Xr mandoc 1 -.Fl a . -This overrides any earlier -.Fl f , -.Fl k , -and -.Fl w -options. .It Fl M Ar path Use the colon-separated path instead of the default list of paths searched for @@ -154,7 +122,7 @@ Restrict the search to pages for the specified .Xr machine 1 architecture. .Ar arch -is case insensitive. +is case-insensitive. By default, pages for all architectures are shown. .It Fl s Ar section Restrict the search to the specified section of the manual. @@ -162,14 +130,16 @@ By default, pages from all sections are shown. See .Xr man 1 for a listing of sections. -.It Fl w -Instead of showing title lines, show the pathnames of the matching -manual pages, just like -.Xr man 1 -.Fl w -would. .El .Pp +The options +.Fl chlw +are also supported and are documented in +.Xr man 1 . +The options +.Fl fkl +are mutually exclusive and override each other. +.Pp An .Ar expression consists of search terms joined by logical operators @@ -228,7 +198,7 @@ Operator .Cm = evaluates a substring, while .Cm \(ti -evaluates a regular expression. +evaluates a case-sensitive extended regular expression. .It Fl i Ar term If .Ar term @@ -237,26 +207,10 @@ is evaluated case-insensitively. Has no effect on substring terms. .El .Pp -Results are sorted according to the following criteria: -.Bl -enum -.It -The manpath directory tree the page is found in, according to the -order specified with -.Fl M , -.Fl m , -the -.Ev MANPATH -environment variable, the -.Xr man.conf 5 -configuration file, or the default documented in -.Xr man.conf 5 . -.It -The section number in ascending numerical order. -.It -The page name in ascending +Results are sorted first according to the section number in ascending +numerical order, then by the page name in ascending .Xr ascii 7 alphabetical order, case-insensitive. -.El .Pp Each output line is formatted as .Pp @@ -357,13 +311,36 @@ Text production: .It Li \&Ox Ta Ox No version reference .It Li \&Dx Ta Dx No version reference .El +.Pp +In general, macro keys are supposed to yield complete results without +expecting the user to consider actual macro usage. +For example, results include: +.Pp +.Bl -tag -width 3n -offset 3n -compact +.It Li \&Fa +function arguments appearing on +.Ic \&Fn +lines +.It Li \&Fn +function names marked up with +.Ic \&Fo +macros +.It Li \&In +include file names marked up with +.Ic \&Fd +macros +.It Li \&Vt +types appearing as function return types and +.It \& +types appearing in function arguments in the SYNOPSIS +.El .Sh ENVIRONMENT .Bl -tag -width MANPAGER .It Ev MANPAGER Any non-empty value of the environment variable .Ev MANPAGER is used instead of the standard pagination program, -.Xr more 1 ; +.Xr less 1 ; see .Xr man 1 for details. @@ -386,8 +363,7 @@ Specifies the pagination program to use when .Ev MANPAGER is not defined. If neither PAGER nor MANPAGER is defined, -.Xr more 1 -.Fl s +.Xr less 1 is used. Only used if .Fl a @@ -413,7 +389,7 @@ Search for .Qq .cf as a substring of manual names and descriptions: .Pp -.Dl $ apropos .cf +.Dl $ apropos =.cf .Pp Include matches for .Qq .cnf @@ -421,9 +397,9 @@ and .Qq .conf as well: .Pp -.Dl $ apropos .cf .cnf .conf +.Dl $ apropos =.cf =.cnf =.conf .Pp -Search in names and descriptions using a regular expression: +Search in names and descriptions using a case-sensitive regular expression: .Pp .Dl $ apropos \(aq\(tiset.?[ug]id\(aq .Pp @@ -436,7 +412,7 @@ variables: .Dl $ apropos \-s 3 Va=optind \-a Va=optarg .Pp Do exactly the same as calling -.Xr whatis 1 +.Nm whatis with the argument .Qq ssh : .Pp @@ -454,6 +430,24 @@ The following two invocations are equivalent: .Xr man 1 , .Xr re_format 7 , .Xr makewhatis 8 +.Sh STANDARDS +The +.Nm +utility is compliant with the +.St -p1003.1-2008 +specification of +.Xr man 1 +.Fl k . +.Pp +All options, the +.Nm whatis +command, support for logical operators, macro keys, +substring matching, sorting of results, the environment variables +.Ev MANPAGER +and +.Ev MANPATH , +the database format, and the configuration file +are extensions to that specification. .Sh HISTORY Part of the functionality of .Nm whatis