===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tic/tic.1,v
retrieving revision 1.16
retrieving revision 1.17
diff -u -r1.16 -r1.17
--- src/usr.bin/tic/tic.1	2013/03/24 00:09:30	1.16
+++ src/usr.bin/tic/tic.1	2023/10/17 09:52:10	1.17
@@ -1,7 +1,8 @@
-.\" $OpenBSD: tic.1,v 1.16 2013/03/24 00:09:30 nicm Exp $
+.\" $OpenBSD: tic.1,v 1.17 2023/10/17 09:52:10 nicm Exp $
 .\"
 .\"***************************************************************************
-.\" Copyright (c) 1998-2005,2006 Free Software Foundation, Inc.              *
+.\" Copyright 2018-2022,2023 Thomas E. Dickey                                *
+.\" Copyright 1998-2016,2017 Free Software Foundation, Inc.                  *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
@@ -28,86 +29,184 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: tic.1,v 1.16 2013/03/24 00:09:30 nicm Exp $
-.TH tic 1 ""
+.\" $Id: tic.1,v 1.17 2023/10/17 09:52:10 nicm Exp $
+.TH tic 1 2023-08-19 "ncurses 6.4" "User commands"
+.ie \n(.g .ds `` \(lq
+.el       .ds `` ``
+.ie \n(.g .ds '' \(rq
+.el       .ds '' ''
 .ds n 5
 .ds d /usr/share/terminfo
+.de bP
+.ie n  .IP \(bu 4
+.el    .IP \(bu 2
+..
 .SH NAME
-\fBtic\fR - the \fIterminfo\fR entry-description compiler
+\fBtic\fP \- the \fIterminfo\fP entry-description compiler
 .SH SYNOPSIS
-\fBtic\fR
-[\fB-\
+\fBtic\fP
+[\fB\-\
+0\
 1\
 C\
+D\
 G\
 I\
+K\
 L\
 N\
 T\
 U\
 V\
+W\
 a\
 c\
 f\
 g\
+q\
 r\
 s\
 t\
 x\
-\fR]
-[\fB-e\fR \fInames\fR]
-[\fB-o\fR \fIdir\fR]
-[\fB-R\fR \fIsubset\fR]
-[\fB-v\fR[\fIn\fR]]
-[\fB-w\fR[\fIn\fR]]
-\fIfile\fR
-.br
+\fP]
+[\fB\-e\fP \fInames\fP]
+[\fB\-o\fP \fIdir\fP]
+[\fB\-Q\fP[\fIn\fP]]
+[\fB\-R\fP \fIsubset\fP]
+[\fB\-v\fP[\fIn\fP]]
+[\fB\-w\fP[\fIn\fP]]
+\fIfile\fP
 .SH DESCRIPTION
-The command \fBtic\fR translates a \fBterminfo\fR file from source
-format into compiled format.  The compiled format is necessary for use with
-the library routines in \fBncurses\fR(3X).
+The \fBtic\fP command translates a \fBterminfo\fP file from source
+format into compiled format.
+The compiled format is necessary for use with
+the library routines in \fBncurses\fP(3).
 .PP
-The results are normally placed in the system terminfo
-directory \fB\*d\fR.  There are two ways to change this behavior.
+As described in \fBterm\fP(\*n), the database may be either a directory
+tree (one file per terminal entry) or a hashed database (one record per entry).
+The \fBtic\fP command writes only one type of entry,
+depending on how it was built:
+.bP
+For directory trees, the top-level directory, e.g., /usr/share/terminfo,
+specifies the location of the database.
+.bP
+For hashed databases, a filename is needed.
+If the given file is not found by that name,
+but can be found by adding the suffix ".db",
+then that is used.
+.IP
+The default name for the hashed database is the same as the
+default directory name (only adding a ".db" suffix).
 .PP
-First, you may override the system default by setting the variable
-\fBTERMINFO\fR in your shell environment to a valid (existing) directory name.
+In either case (directory or hashed database),
+\fBtic\fP will create the container if it does not exist.
+For a directory, this would be the \*(``terminfo\*('' leaf,
+versus a "terminfo.db" file.
 .PP
-Secondly, if \fBtic\fR cannot get access to \fI\*d\fR or your TERMINFO
-directory, it looks for the directory \fI$HOME/.terminfo\fR; if that directory
-exists, the entry is placed there.
+The results are normally placed in the system terminfo database \fB\*d\fP.
+The compiled terminal description can be placed
+in a different terminfo database.
+There are two ways to achieve this:
+.bP
+First, you may override the system default either by
+using the \fB\-o\fP option,
+or by setting the variable \fBTERMINFO\fP
+in your shell environment to a valid database location.
+.bP
+Secondly, if \fBtic\fP cannot write in \fI\*d\fP
+or the location specified using your TERMINFO variable,
+it looks for the directory \fI$HOME/.terminfo\fP
+(or hashed database \fI$HOME/.terminfo.db)\fP;
+if that location exists, the entry is placed there.
 .PP
-Libraries that read terminfo entries are expected to check for a TERMINFO
-directory first, look at \fI$HOME/.terminfo\fR if TERMINFO is not set, and
-finally look in \fI\*d\fR.
+Libraries that read terminfo entries are expected to check in succession
+.bP
+a location specified with the TERMINFO environment variable,
+.bP
+\fI$HOME/.terminfo\fP,
+.bP
+directories listed in the TERMINFO_DIRS environment variable,
+.bP
+a compiled-in list of directories (?), and
+.bP
+the system terminfo database (\fI\*d\fP).
+.SS ALIASES
+This is the same program as infotocap and captoinfo;
+usually those are linked to, or copied from this program:
+.bP
+When invoked as infotocap, tic sets the \fB\-I\fP option.
+.bP
+When invoked as captoinfo, tic sets the \fB\-C\fP option.
+.SS OPTIONS
 .TP
-\fB-1\fR
+\fB\-0\fP
+restricts the output to a single line
+.TP
+\fB\-1\fP
 restricts the output to a single column
 .TP
-\fB-a\fR
+\fB\-a\fP
 tells \fBtic\fP to retain commented-out capabilities rather than discarding
-them.  Capabilities are commented by prefixing them with a period.
-This sets the \fB-x\fR option, because it treats the commented-out
+them.
+Capabilities are commented by prefixing them with a period.
+This sets the \fB\-x\fP option, because it treats the commented-out
 entries as user-defined names.
 If the source is termcap, accept the 2-character names required by version 6.
 Otherwise these are ignored.
 .TP
-\fB-C\fR
-Force source translation to termcap format.  Note: this differs from the \fB-C\fR
-option of \fBinfocmp\fR(1M) in that it does not merely translate capability
-names, but also translates terminfo strings to termcap format.  Capabilities
+\fB\-C\fP
+Force source translation to termcap format.
+Note: this differs from the \fB\-C\fP
+option of \fBinfocmp\fP(1) in that it does not merely translate capability
+names, but also translates terminfo strings to termcap format.
+Capabilities
 that are not translatable are left in the entry under their terminfo names
 but commented out with two preceding dots.
+The actual format used incorporates some improvements for escaped characters
+from terminfo format.
+For a stricter BSD-compatible translation, add the \fB\-K\fP option.
+.IP
+If this is combined with \fB\-c\fP, \fBtic\fP makes additional checks
+to report cases where the terminfo values do not have an exact equivalent
+in termcap form.
+For example:
+.RS
+.bP
+\fBsgr\fP usually will not convert, because termcap lacks the ability to
+work with more than two parameters, and because termcap lacks many of
+the arithmetic/logical operators used in terminfo.
+.bP
+capabilities with more than one delay or with delays before the end of
+the string will not convert completely.
+.RE
 .TP
-\fB-c\fR
-tells \fBtic\fP to only check \fIfile\fR for errors, including syntax problems and
-bad use links.  If you specify \fB-C\fR (\fB-I\fR) with this option, the code
+\fB\-c\fP
+tells \fBtic\fP to only check \fIfile\fP for errors,
+including syntax problems and bad use-links.
+If you specify \fB\-C\fP (\fB\-I\fP) with this option, the code
 will print warnings about entries which, after use resolution, are more than
-1023 (4096) bytes long.  Due to a fixed buffer length in older termcap
-libraries (and a documented limit in terminfo), these entries may cause core
-dumps.
+1023 (4096) bytes long.
+Due to a fixed buffer length in older termcap libraries,
+as well as buggy checking for the buffer length
+(and a documented limit in terminfo),
+these entries may cause core
+dumps with other implementations.
+.IP
+\fBtic\fP checks string capabilities to ensure that those with parameters
+will be valid expressions.
+It does this check only for the predefined string capabilities;
+those which are defined with the \fB\-x\fP option are ignored.
 .TP
-\fB-e \fR\fInames\fR
+\fB\-D\fP
+tells \fBtic\fP to print the database locations that it knows about, and exit.
+The first location shown is the one to which it would write compiled
+terminal descriptions.
+If \fBtic\fP is not able to find a writable database location
+according to the rules summarized above,
+it will print a diagnostic and exit with an error rather than
+printing a list of database locations.
+.TP
+\fB\-e \fInames\fR
 Limit writes and translations to the following comma-separated list of
 terminals.
 If any name or alias of a terminal matches one of the names in
@@ -115,120 +214,154 @@
 Otherwise no output will be generated for it.
 The option value is interpreted as a file containing the list if it
 contains a '/'.
-(Note: depending on how tic was compiled, this option may require \fB-I\fR or \fB-C\fR.)
+(Note: depending on how tic was compiled,
+this option may require \fB\-I\fP or \fB\-C\fP.)
 .TP
-\fB-f\fR
+\fB\-f\fP
 Display complex terminfo strings which contain if/then/else/endif expressions
 indented for readability.
 .TP
-\fB-G\fR
+\fB\-G\fP
 Display constant literals in decimal form
 rather than their character equivalents.
 .TP
-\fB-g\fR
+\fB\-g\fP
 Display constant character literals in quoted form
 rather than their decimal equivalents.
 .TP
-\fB-I\fR
+\fB\-I\fP
 Force source translation to terminfo format.
 .TP
-\fB-L\fR
+\fB\-K\fP
+Suppress some longstanding ncurses extensions to termcap format,
+e.g., "\\s" for space.
+.TP
+\fB\-L\fP
 Force source translation to terminfo format
-using the long C variable names listed in <\fBterm.h\fR>
+using the long C variable names listed in <\fBterm.h\fP>
 .TP
-\fB-N\fR
+\fB\-N\fP
 Disable smart defaults.
 Normally, when translating from termcap to terminfo, the compiler makes
 a number of assumptions about the defaults of string capabilities
-\fBreset1_string\fR, \fBcarriage_return\fR, \fBcursor_left\fR,
-\fBcursor_down\fR, \fBscroll_forward\fR, \fBtab\fR, \fBnewline\fR,
-\fBkey_backspace\fR, \fBkey_left\fR, and \fBkey_down\fR, then attempts
-to use obsolete termcap capabilities to deduce correct values.  It also
-normally suppresses output of obsolete termcap capabilities such as \fBbs\fR.
+\fBreset1_string\fP, \fBcarriage_return\fP, \fBcursor_left\fP,
+\fBcursor_down\fP, \fBscroll_forward\fP, \fBtab\fP, \fBnewline\fP,
+\fBkey_backspace\fP, \fBkey_left\fP, and \fBkey_down\fP, then attempts
+to use obsolete termcap capabilities to deduce correct values.
+It also
+normally suppresses output of obsolete termcap capabilities such as \fBbs\fP.
 This option forces a more literal translation that also preserves the
 obsolete capabilities.
 .TP
-\fB-o\fR\fIdir\fR
-Write compiled entries to given directory.  Overrides the TERMINFO environment
-variable.
+\fB\-o\fIdir\fR
+Write compiled entries to given database location.
+Overrides the TERMINFO environment variable.
 .TP
-\fB-R\fR\fIsubset\fR
-Restrict output to a given subset.  This option is for use with archaic
+\fB\-Q\fIn\fR
+Rather than show source in terminfo (text) format,
+print the compiled (binary) format in hexadecimal or base64 form,
+depending on the option's value:
+.RS 8
+.TP 3
+1
+hexadecimal
+.TP 3
+2
+base64
+.TP 3
+3
+hexadecimal and base64
+.RE
+.TP
+\fB\-q\fP
+Suppress comments and blank lines when showing translated source.
+.TP
+\fB\-R\fIsubset\fR
+Restrict output to a given subset.
+This option is for use with archaic
 versions of terminfo like those on SVr1, Ultrix, or HP-UX that do not support
 the full set of SVR4/XSI Curses terminfo; and outright broken ports like AIX 3.x
-that have their own extensions incompatible with SVr4/XSI.  Available subsets
-are "SVr1", "Ultrix", "HP", "BSD" and "AIX"; see \fBterminfo\fR(\*n) for details.
+that have their own extensions incompatible with SVr4/XSI.
+.IP
+Available subsets are
+.RS
+\*(``SVr1\*('',
+\*(``Ultrix\*('',
+\*(``HP\*('',
+\*(``BSD\*('', and
+\*(``AIX\*(''
+.RE
+.IP
+See \fBterminfo\fP(\*n) for details.
 .TP
-\fB-r\fR
+\fB\-r\fP
 Force entry resolution (so there are no remaining tc capabilities) even
-when doing translation to termcap format.  This may be needed if you are
+when doing translation to termcap format.
+This may be needed if you are
 preparing a termcap file for a termcap library (such as GNU termcap through
 version 1.3 or BSD termcap through 4.3BSD) that does not handle multiple
 tc capabilities per entry.
 .TP
-\fB-s\fR
-Summarize the compile by showing the directory into which entries
+\fB\-s\fP
+Summarize the compile by showing the database location into which entries
 are written, and the number of entries which are compiled.
 .TP
-\fB-T\fR
+\fB\-T\fP
 eliminates size-restrictions on the generated text.
 This is mainly useful for testing and analysis, since the compiled
 descriptions are limited (e.g., 1023 for termcap, 4096 for terminfo).
 .TP
-\fB-t\fR
+\fB\-t\fP
 tells \fBtic\fP to discard commented-out capabilities.
 Normally when translating from terminfo to termcap,
 untranslatable capabilities are commented-out.
 .TP 5
-\fB-U\fR
+\fB\-U\fP
 tells \fBtic\fP to not post-process the data after parsing the source file.
 Normally, it infers data which is commonly missing in older terminfo data,
 or in termcaps.
 .TP
-\fB-V\fR
+\fB\-V\fP
 reports the version of ncurses which was used in this program, and exits.
 .TP
-\fB-v\fR\fIn\fR
+\fB\-v\fIn\fR
 specifies that (verbose) output be written to standard error trace
-information showing \fBtic\fR's progress.
-The optional parameter \fIn\fR is a number from 1 to 10, inclusive,
+information showing \fBtic\fP's progress.
+.IP
+The optional parameter \fIn\fP is a number from 1 to 9, inclusive,
 indicating the desired level of detail of information.
-If \fIn\fR is omitted, the default level is 1.
-If \fIn\fR is specified and greater than 1, the level of
-detail is increased.
-.TP
-\fB-w\fR\fIn\fR
-specifies the width of the output.
-The parameter is optional.
-If it is omitted, it defaults to 60.
-.TP
-\fB-x\fR
-Treat unknown capabilities as user-defined.
-That is, if you supply a capability name which \fBtic\fP does not recognize,
-it will infer its type (boolean, number or string) from the syntax and
-make an extended table entry for that.
-User-defined capability strings
-whose name begins with ``k'' are treated as function keys.
-.TP
-\fIfile\fR
-contains one or more \fBterminfo\fR terminal descriptions in source
-format [see \fBterminfo\fR(\*n)].  Each description in the file
-describes the capabilities of a particular terminal.
+.RS
+.bP
+If ncurses is built without tracing support, the optional parameter is ignored.
+.bP
+If \fIn\fP is omitted, the default level is 1.
+.bP
+If \fIn\fP is specified and greater than 1, the level of
+detail is increased, and the output is written (with tracing information)
+to the \*(``trace\*('' file.
+.RE
+.RS
 .PP
 The debug flag levels are as follows:
-.TP
+.TP 4
 1
 Names of files created and linked
 .TP
 2
-Information related to the ``use'' facility
+Information related to the \*(``use\*('' facility
 .TP
 3
 Statistics from the hashing algorithm
 .TP
+4
+Details of extended capabilities
+.TP
 5
-String-table memory allocations
+(unused)
 .TP
+6
+(unused)
+.TP
 7
 Entries into the string-table
 .TP
@@ -237,96 +370,237 @@
 .TP
 9
 All values computed in construction of the hash table
-.LP
-If the debug level \fIn\fR is not given, it is taken to be one.
+.RE
+.TP
+\fB\-W\fP
+By itself, the \fB\-w\fP option will not force long strings to be wrapped.
+Use the \fB\-W\fP option to do this.
+.IP
+If you specify both \fB\-f\fP and \fB\-W\fP options,
+the latter is ignored when \fB\-f\fP has already split the line.
+.TP
+\fB\-w\fIn\fR
+specifies the width of the output.
+The parameter is optional.
+If it is omitted, it defaults to 60.
+.TP
+\fB\-x\fP
+Treat unknown capabilities as user-defined (see \fBuser_caps(\*n)\fP).
+That is, if you supply a capability name which \fBtic\fP does not recognize,
+it will infer its type (boolean, number or string) from the syntax and
+make an extended table entry for that.
+User-defined capability strings
+whose name begins with \*(``k\*('' are treated as function keys.
+.SS PARAMETERS
+.TP
+\fIfile\fP
+contains one or more \fBterminfo\fP terminal descriptions in source
+format [see \fBterminfo\fP(\*n)].
+Each description in the file
+describes the capabilities of a particular terminal.
+.IP
+If \fIfile\fP is \*(``-\*('', then the data is read from the standard input.
+The \fIfile\fP parameter may also be the path of a character-device.
+.SS PROCESSING
+All but one of the capabilities recognized by \fBtic\fP are documented
+in \fBterminfo\fP(\*n).
+The exception is the \fBuse\fP capability.
 .PP
-All but one of the capabilities recognized by \fBtic\fR are documented
-in \fBterminfo\fR(\*n).  The exception is the \fBuse\fR capability.
-.PP
-When a \fBuse\fR=\fIentry\fR-\fIname\fR field is discovered in a
-terminal entry currently being compiled, \fBtic\fR reads in the binary
-from \fB\*d\fR to complete the entry.  (Entries created from
-\fIfile\fR will be used first.  If the environment variable
-\fBTERMINFO\fR is set, that directory is searched instead of
-\fB\*d\fR.)  \fBtic\fR duplicates the capabilities in
-\fIentry\fR-\fIname\fR for the current entry, with the exception of
+When a \fBuse\fP=\fIentry\fP\-\fIname\fP field is discovered in a
+terminal entry currently being compiled, \fBtic\fP reads in the binary
+from \fB\*d\fP to complete the entry.
+(Entries created from
+\fIfile\fP will be used first.
+\fBtic\fP duplicates the capabilities in
+\fIentry\fP\-\fIname\fP for the current entry, with the exception of
 those capabilities that explicitly are defined in the current entry.
 .PP
-When an entry, e.g., \fBentry_name_1\fR, contains a
-\fBuse=\fR\fIentry\fR_\fIname\fR_\fI2\fR field, any canceled
-capabilities in \fIentry\fR_\fIname\fR_\fI2\fR must also appear in
-\fBentry_name_1\fR before \fBuse=\fR for these capabilities to be
-canceled in \fBentry_name_1\fR.
+When an entry, e.g., \fBentry_name_1\fP, contains a
+\fBuse=\fIentry\fR_\fIname\fR_\fI2\fR field, any canceled
+capabilities in \fIentry\fR_\fIname\fR_\fI2\fP must also appear in
+\fBentry_name_1\fP before \fBuse=\fP for these capabilities to be
+canceled in \fBentry_name_1\fP.
 .PP
-If the environment variable \fBTERMINFO\fR is set, the compiled
-results are placed there instead of \fB\*d\fR.
-.PP
-Total compiled entries cannot exceed 4096 bytes.  The name field cannot
-exceed 512 bytes.  Terminal names exceeding the maximum alias length
+Total compiled entries cannot exceed 4096 bytes.
+The name field cannot
+exceed 512 bytes.
+Terminal names exceeding the maximum alias length
 (32 characters on systems with long filenames, 14 characters otherwise)
-will be truncated to the maximum alias length and a warning message will be printed.
-.SH COMPATIBILITY
-There is some evidence that historic \fBtic\fR implementations treated
+will be truncated to the maximum alias length
+and a warning message will be printed.
+.SH HISTORY
+System V Release 2 provided a \fBtic\fP utility.
+It accepted a single option: \fB\-v\fP (optionally followed by a number).
+According to Ross Ridge's comment in \fImytinfo\fP,
+this version of \fBtic\fP was
+unable to represent cancelled capabilities.
+.PP
+System V Release 3 provided a different \fBtic\fP utility,
+written by Pavel Curtis,
+(originally named \*(``compile\*('' in \fIpcurses\fP).
+This added an option \fB\-c\fP to check the file for
+errors, with the caveat that errors in \*(``use=\*('' links
+would not be reported.
+System V Release 3 documented a few warning messages which
+did not appear in \fIpcurses\fP.
+While the program itself was changed little as development
+continued with System V Release 4,
+the table of capabilities grew from 180 (\fIpcurses\fP) to 464 (Solaris).
+.PP
+In early development of ncurses (1993),
+Zeyd Ben-Halim used the table from \fImytinfo\fP to
+extend the \fIpcurses\fP table to 469 capabilities
+(456 matched SVr4, 8 were only in SVr4, 13 were not in SVr4).
+Of those 13, 11 were ultimately discarded
+(perhaps to match the draft of X/Open Curses).
+The exceptions were
+\fBmemory_lock_above\fP and
+\fBmemory_unlock\fP (see \fBuser_caps\fP(5)).
+.PP
+Eric Raymond incorporated parts of \fImytinfo\fP into ncurses
+to implement the termcap-to-terminfo source conversion,
+and extended that to begin development of
+the corresponding terminfo-to-termcap source conversion,
+Thomas Dickey completed that development over the course of several years.
+.PP
+In 1999, Thomas Dickey added the \fB\-x\fP option
+to support user-defined capabilities.
+.PP
+In 2010, Roy Marples provided a \fBtic\fP program
+and terminfo library for NetBSD.
+That implementation adapts several features from ncurses,
+including \fBtic\fP's \fB\-x\fP option.
+.PP
+The \fB\-c\fP option tells \fBtic\fP to check for problems in the
+terminfo source file.
+Continued development provides additional checks:
+.bP
+\fIpcurses\fP had 8 warnings
+.bP
+ncurses in 1996 had 16 warnings
+.bP
+Solaris (SVr4) curses has 28 warnings
+.bP
+NetBSD tic in 2019 has 19 warnings.
+.bP
+ncurses in 2019 has 96 warnings
+.PP
+The checking done in ncurses' \fBtic\fP helps with the conversion to
+termcap, as well as pointing out errors and inconsistencies.
+It is also used to ensure consistency with the user-defined capabilities.
+There are 527 distinct capabilities in ncurses' terminal database;
+128 of those are user-defined.
+.SH PORTABILITY
+X/Open Curses, Issue 7 (2009) provides a brief description of \fBtic\fP.
+It lists one option: \fB\-c\fP.
+The omission of \fB\-v\fP is unexpected.
+The change history states that the description is derived from True64 UNIX.
+According to its manual pages, that system also supported the \fB\-v\fP option.
+.PP
+Shortly after Issue 7 was released, Tru64 was discontinued.
+As of 2019, the surviving implementations of \fBtic\fP
+are SVr4 (AIX, HP-UX and Solaris),
+ncurses
+and NetBSD curses.
+The SVr4 \fBtic\fP programs all support the \fB\-v\fP option.
+The NetBSD \fBtic\fP program follows X/Open's documentation,
+omitting the \fB\-v\fP option.
+.PP
+The X/Open rationale states that some implementations of \fBtic\fP
+read terminal descriptions from the standard input if the \fIfile\fP
+parameter is omitted.
+None of these implementations do that.
+Further, it comments that some may choose to read from \*(''./terminfo.src\*(''
+but that is obsolescent behavior from SVr2,
+and is not (for example) a documented feature of SVr3.
+.SS COMPATIBILITY
+There is some evidence that historic \fBtic\fP implementations treated
 description fields with no whitespace in them as additional aliases or
-short names.  This \fBtic\fR does not do that, but it does warn when
+short names.
+This \fBtic\fP does not do that, but it does warn when
 description fields may be treated that way and check them for dangerous
 characters.
-.SH EXTENSIONS
-Unlike the stock SVr4 \fBtic\fR command, this implementation can actually
-compile termcap sources.  In fact, entries in terminfo and termcap syntax can
-be mixed in a single source file.  See \fBterminfo\fR(\*n) for the list of
+.SS EXTENSIONS
+Unlike the SVr4 \fBtic\fP command, this implementation can actually
+compile termcap sources.
+In fact, entries in terminfo and termcap syntax can
+be mixed in a single source file.
+See \fBterminfo\fP(\*n) for the list of
 termcap names taken to be equivalent to terminfo names.
 .PP
-The SVr4 manual pages are not clear on the resolution rules for \fBuse\fR
+The SVr4 manual pages are not clear on the resolution rules for \fBuse\fP
 capabilities.
-This implementation of \fBtic\fR will find \fBuse\fR targets anywhere
-in the source file, or anywhere in the file tree rooted at \fBTERMINFO\fR (if
-\fBTERMINFO\fR is defined), or in the user's \fI$HOME/.terminfo\fR directory
-(if it exists), or (finally) anywhere in the system's file tree of
+This implementation of \fBtic\fP will find \fBuse\fP targets anywhere
+in the source file, or anywhere in the file tree rooted at \fBTERMINFO\fP (if
+\fBTERMINFO\fP is defined),
+or in the user's \fI$HOME/.terminfo\fP database
+(if it exists),
+or (finally) anywhere in the system's file tree of
 compiled entries.
 .PP
-The error messages from this \fBtic\fR have the same format as GNU C
+The error messages from this \fBtic\fP have the same format as GNU C
 error messages, and can be parsed by GNU Emacs's compile facility.
 .PP
-The
-\fB-C\fR,
-\fB-G\fR,
-\fB-I\fR,
-\fB-N\fR,
-\fB-R\fR,
-\fB-T\fR,
-\fB-V\fR,
-\fB-a\fR,
-\fB-e\fR,
-\fB-f\fR,
-\fB-g\fR,
-\fB-o\fR,
-\fB-r\fR,
-\fB-s\fR,
-\fB-t\fR and
-\fB-x\fR
-options
-are not supported under SVr4.
-The SVr4 \fB-c\fR mode does not report bad use links.
+Aside from \fB\-c\fP and \fB\-v\fP, options are not portable:
+.bP
+Most of tic's options
+are not supported by SVr4 \fBtic\fP:
+.sp
+.RS
+\fB\-0\fP
+\fB\-1\fP
+\fB\-C\fP
+\fB\-G\fP
+\fB\-I\fP
+\fB\-N\fP
+\fB\-R\fP
+\fB\-T\fP
+\fB\-V\fP
+\fB\-a\fP
+\fB\-e\fP
+\fB\-f\fP
+\fB\-g\fP
+\fB\-o\fP
+\fB\-r\fP
+\fB\-s\fP
+\fB\-t\fP
+\fB\-x\fP
+.RE
+.bP
+The NetBSD \fBtic\fP  supports a few of the ncurses options
+.sp
+.RS
+\fB\-a\fP
+\fB\-o\fP
+\fB\-x\fP
+.RE
+.IP
+and adds \fB\-S\fP
+(a feature which does the same thing
+as infocmp's \fB\-e\fP and \fB\-E\fP options).
 .PP
+The SVr4 \fB\-c\fP mode does not report bad \*(``use=\*('' links.
+.PP
 System V does not compile entries to or read entries from your
-\fI$HOME/.terminfo\fR directory unless TERMINFO is explicitly set to it.
+\fI$HOME/.terminfo\fP database unless TERMINFO is explicitly set to it.
 .SH FILES
 .TP 5
-\fB\*d/?/*\fR
+\fB\*d/?/*\fP
 Compiled terminal description database.
 .SH SEE ALSO
-\fBinfocmp\fR(1),
-\fBcaptoinfo\fR(1),
-\fBinfotocap\fR(1),
-\fBcurses\fR(3),
-\fBterminfo\fR(\*n).
+\fBcaptoinfo\fP(1),
+\fBinfocmp\fP(1),
+\fBinfotocap\fP(1),
+\fBtoe\fP(1),
+\fBcurses\fP(3),
+\fBterm\fP(\*n).
+\fBterminfo\fP(\*n).
+\fBuser_caps\fP(\*n).
 .PP
-This describes \fBncurses\fR
-version 5.7.
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End:
+This describes \fBncurses\fP
+version 6.4 (patch 20230826).
+.SH AUTHOR
+Eric S. Raymond <esr@snark.thyrsus.com>
+and
+.br
+Thomas E. Dickey <dickey@invisible-island.net>