xref: /freebsd/contrib/ncurses/man/manlinks.sed (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
1# $Id: manlinks.sed,v 1.21 2024/04/20 22:25:36 tom Exp $
2##############################################################################
3# Copyright 2020-2023,2024 Thomas E. Dickey                                  #
4# Copyright 2000-2003,2008 Free Software Foundation, Inc.                    #
5#                                                                            #
6# Permission is hereby granted, free of charge, to any person obtaining a    #
7# copy of this software and associated documentation files (the "Software"), #
8# to deal in the Software without restriction, including without limitation  #
9# the rights to use, copy, modify, merge, publish, distribute, distribute    #
10# with modifications, sublicense, and/or sell copies of the Software, and to #
11# permit persons to whom the Software is furnished to do so, subject to the  #
12# following conditions:                                                      #
13#                                                                            #
14# The above copyright notice and this permission notice shall be included in #
15# all copies or substantial portions of the Software.                        #
16#                                                                            #
17# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR #
18# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   #
19# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    #
20# THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      #
21# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    #
22# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        #
23# DEALINGS IN THE SOFTWARE.                                                  #
24#                                                                            #
25# Except as contained in this notice, the name(s) of the above copyright     #
26# holders shall not be used in advertising or otherwise to promote the sale, #
27# use or other dealings in this Software without prior written               #
28# authorization.                                                             #
29##############################################################################
30# Given a manpage (nroff) as input, writes a list of the names that are
31# listed in the "NAME" section, i.e., the names that we would like to use
32# as aliases for the manpage -T.Dickey
33#
34# workaround for manpages without a SYNOPSIS
35s/^\.\\"SH/.SH/
36#
37# eliminate formatting controls that get in the way
38/^'\\"/d
39/\.\\"/d
40/^\.br/d
41/^\.sp/d
42/typedef/d
43s/^\.IX//
44s/\\f.//g
45s/\\%//g
46s/[:,]/ /g
47#
48# ignore C-style comments
49s%/\*.*\*/%%
50#
51# Eliminate unnecessary whitespace, convert multiple blanks to single space.
52s/^[ 	][ 	]*//
53s/[ 	][ 	]*$//
54s/[ 	][ 	]*/ /g
55/^$/d
56#
57# convert ".SH" into a more manageable form
58s/\.SH[ 	][ 	]*/.SH_(/
59#
60# in ".SH NAME"
61# Convert a list of names separated from their description by " \-" to a list
62# of names on separate lines.  Normally the list is also comma-separated, but
63# we ignore that detail here.  The description is on a separate line to make
64# the nroff source more pleasing to some eyes.
65/^\.SH_(NAME/,/ \\-$/{
66s/\\-/-/g
67s/  / /g
68/ -$/{
69s/ -$//
70n
71d
72}
73s/ /\
74/g
75}
76#
77# in ".SH SYNOPSIS"
78# For readability, the NAME section may not contain all function names, but we
79# still want to make aliases for those.  Do this by extracting names from the
80# list of function prototypes in the synopsis.
81#
82# Remove any line that does not contain a '(', since we only want functions.
83# then strip off return-type of each function.
84#
85# Finally, remove the parameter list, which begins with a '('.
86/^\.SH_(SYNOPSIS/,/^\.SH_(DESCRIPTION/{
87/^\.ti/d
88/^[^(]*$/d
89# reduce
90#	.B "int add_wch( const cchar_t *\fIwch\fB );"
91# to
92#	add_wch( const cchar_t *\fIwch\fB );"
93s/^\([^ (]* [^ (]* [*]*\)//g
94s/^\([^ (]* [*]*\)//g
95# trim blanks in case we have
96#	void (*) (FORM *) field_init(const FORM *form);
97s/) (/)(/g
98# reduce stuff like
99#	void (*)(FORM *) field_init(const FORM *form);
100# to
101#	field_init(const FORM *form);
102s/^\(([^)]*)\)\(([^)]*)\)*[ ]*//g
103# rename marker temporarily
104s/\.SH_(/.SH_/
105# kill lines with ");", and trim off beginning of argument list.
106s/[()].*//
107# rename marker back
108s/\.SH_/.SH_(/
109}
110#
111# delete ".SH DESCRIPTION" and following lines
112/^\.SH_(DESCRIPTION/,${
113d
114}
115#
116# delete any remaining directives
117/^\./d
118