45c2cf11d2
It implements missing man(7) macros used in base by kerberos/ntp and makes them supported by mandoc. This import should have been done before the removal of groff. Reported by: gordon
121 lines
3.3 KiB
Groff
121 lines
3.3 KiB
Groff
.\" $Id: mansearch.3,v 1.5 2017/03/30 22:22:05 schwarze Exp $
|
|
.\"
|
|
.\" Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
|
|
.\"
|
|
.\" Permission to use, copy, modify, and distribute this software for any
|
|
.\" purpose with or without fee is hereby granted, provided that the above
|
|
.\" copyright notice and this permission notice appear in all copies.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
.\" 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 30 2017 $
|
|
.Dt MANSEARCH 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm mansearch
|
|
.Nd search manual page databases
|
|
.Sh SYNOPSIS
|
|
.In stdint.h
|
|
.In manconf.h
|
|
.In mansearch.h
|
|
.Ft int
|
|
.Fo mansearch
|
|
.Fa "const struct mansearch *search"
|
|
.Fa "const struct manpaths *paths"
|
|
.Fa "int argc"
|
|
.Fa "char *argv[]"
|
|
.Fa "struct manpage **res"
|
|
.Fa "size_t *sz"
|
|
.Fc
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn mansearch
|
|
function returns information about manuals matching a search query from a
|
|
.Xr mandoc.db 5
|
|
database.
|
|
.Pp
|
|
The query arguments are as follows:
|
|
.Bl -tag -width Ds
|
|
.It Fa "const struct mansearch *search"
|
|
Search options, defined in
|
|
.In mansearch.h .
|
|
.It Fa "const struct manpaths *paths"
|
|
Directories to be searched, defined in
|
|
.In manconf.h .
|
|
.It Fa "int argc" , "char *argv[]"
|
|
Search criteria, usually taken from the command line.
|
|
.El
|
|
.Pp
|
|
The output arguments are as follows:
|
|
.Bl -tag -width Ds
|
|
.It Fa "struct manpage **res"
|
|
Returns a pointer to an array of result structures defined in
|
|
.In mansearch.h .
|
|
The user is expected to call
|
|
.Xr free 3
|
|
on the
|
|
.Va file ,
|
|
.Va names ,
|
|
and
|
|
.Va output
|
|
fields of all structures, as well as the
|
|
.Fa res
|
|
array itself.
|
|
.It Fa "size_t *sz"
|
|
Returns the number of result structures contained in
|
|
.Fa res .
|
|
.El
|
|
.Sh IMPLEMENTATION NOTES
|
|
For each manual page tree, the search is done in two steps.
|
|
In the first step, a list of pages matching the search criteria is built.
|
|
In the second step, the requested information about these pages is
|
|
retrieved from the database and assembled into the
|
|
.Fa res
|
|
array.
|
|
.Pp
|
|
All function mentioned here are defined in the file
|
|
.Pa mansearch.c .
|
|
.Ss Finding matches
|
|
Command line parsing is done by the function
|
|
.Fn exprcomp
|
|
building a singly linked list of
|
|
.Vt expr
|
|
structures, using the helper functions
|
|
.Fn expr_and
|
|
and
|
|
.Fn exprterm .
|
|
.Ss Assembling the results
|
|
The names, sections, and architectures of the manuals found
|
|
are assembled into the
|
|
.Va names
|
|
field of the result structure by the function
|
|
.Fn buildnames .
|
|
.Sh FILES
|
|
.Bl -tag -width mandoc.db -compact
|
|
.It Pa mandoc.db
|
|
The manual page database.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr apropos 1 ,
|
|
.Xr mandoc.db 5 ,
|
|
.Xr makewhatis 8
|
|
.Sh HISTORY
|
|
The
|
|
.Fn mansearch
|
|
subsystem first appeared in
|
|
.Ox 5.6 .
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
A module to search manual page databases was first written by
|
|
.An Kristaps Dzonsons Aq Mt kristaps@bsd.lv
|
|
in 2011, at first using the Berkeley DB;
|
|
he rewrote it for SQLite3 in 2012, and
|
|
.An Ingo Schwarze Aq Mt schwarze@openbsd.org
|
|
removed the dependency on SQLite3 in 2016.
|