#!/bin/sh
# The next line is executed by /bin/sh, but not tcl \
exec tclsh "$0" ${1+"$@"}

package require Tcl 8.6

# Convert Ousterhout format man pages into highly crosslinked hypertext.
#
# Along the way detect many unmatched font changes and other odd things.
#
# Note well, this program is a hack rather than a piece of software
# engineering.  In that sense it's probably a good example of things
# that a scripting language, like Tcl, can do well.  It is offered as
# an example of how someone might convert a specific set of man pages
# into hypertext, not as a general solution to the problem.  If you
# try to use this, you'll be very much on your own.
#
# Copyright (c) 1995-1997 Roger E. Critchlow Jr

set Version "0.40"

set ::CSSFILE "docs.css"

proc parse_command_line {} {
    global argv Version

    # These variables determine where the man pages come from and where
    # the converted pages go to.
    global tcltkdir tkdir tcldir webdir build_tcl build_tk verbose

    # Set defaults based on original code.
    set tcltkdir ../..
    set tkdir {}
    set tcldir {}
    set webdir ../html
    set build_tcl 0
    set build_tk 0
    set verbose 0
    # Default search version is a glob pattern
    set useversion {{,[8-9].[0-9]{,[.ab][0-9]{,[0-9]}}}}

    # Handle arguments a la GNU:
    #   --version
    #   --useversion=<version>
    #   --help
    #   --srcdir=/path
    #   --htmldir=/path

    foreach option $argv {
	switch -glob -- $option {
	    --version {
		puts "tcltk-man-html $Version"
		exit 0
	    }

	    --help {
		puts "usage: tcltk-man-html \[OPTION\] ...\n"
		puts "  --help              print this help, then exit"
		puts "  --version           print version number, then exit"
		puts "  --srcdir=DIR        find tcl and tk source below DIR"
		puts "  --htmldir=DIR       put generated HTML in DIR"
		puts "  --tcl               build tcl help"
		puts "  --tk                build tk help"
		puts "  --useversion        version of tcl/tk to search for"
		puts "  --verbose           whether to print longer messages"
		exit 0
	    }

	    --srcdir=* {
		# length of "--srcdir=" is 9.
		set tcltkdir [string range $option 9 end]
	    }

	    --htmldir=* {
		# length of "--htmldir=" is 10
		set webdir [string range $option 10 end]
	    }

	    --useversion=* {
		# length of "--useversion=" is 13
		set useversion [string range $option 13 end]
	    }

	    --tcl {
		set build_tcl 1
	    }

	    --tk {
		set build_tk 1
	    }

	    --verbose=* {
		set verbose [string range $option \
				 [string length --verbose=] end]
	    }
	    default {
		puts stderr "tcltk-man-html: unrecognized option -- `$option'"
		exit 1
	    }
	}
    }

    if {!$build_tcl && !$build_tk} {
	set build_tcl 1;
	set build_tk 1
    }

    if {$build_tcl} {
	# Find Tcl.
	set tcldir [lindex [lsort [glob -nocomplain -tails -type d \
		-directory $tcltkdir tcl$useversion]] end]
	if {$tcldir eq ""} {
	    puts stderr "tcltk-man-html: couldn't find Tcl below $tcltkdir"
	    exit 1
	}
	puts "using Tcl source directory $tcldir"
    }

    if {$build_tk} {
	# Find Tk.
	set tkdir [lindex [lsort [glob -nocomplain -tails -type d \
		-directory $tcltkdir tk$useversion]] end]
	if {$tkdir eq ""} {
	    puts stderr "tcltk-man-html: couldn't find Tk below $tcltkdir"
	    exit 1
	}
	puts "using Tk source directory $tkdir"
    }

    puts "verbose messages are [expr {$verbose ? {on} : {off}}]"

    # the title for the man pages overall
    global overall_title
    set overall_title ""
    if {$build_tcl} {
	append overall_title "[capitalize $tcldir]"
    }
    if {$build_tcl && $build_tk} {
	append overall_title "/"
    }
    if {$build_tk} {
	append overall_title "[capitalize $tkdir]"
    }
    append overall_title " Documentation"
}

proc capitalize {string} {
    return [string toupper $string 0]
}

##
## Source the utility functions that provide most of the
## implementation of the transformation from nroff to html.
##
source [file join [file dirname [info script]] tcltk-man2html-utils.tcl]

##
## Returns the style sheet.
##
proc css-style args {
    upvar 1 style style
    set body [uplevel 1 [list subst [lindex $args end]]]
    set tokens [join [lrange $args 0 end-1] ", "]
    append style $tokens " \{" $body "\}\n"
}
proc css-stylesheet {} {
    set hBd "1px dotted #11577b"

    css-style body div p th td li dd ul ol dl dt blockquote {
	font-family: Verdana, sans-serif;
    }
    css-style pre code {
	font-family: 'Courier New', Courier, monospace;
    }
    css-style pre {
	background-color:  #f6fcec;
	border-top:        1px solid #6A6A6A;
	border-bottom:     1px solid #6A6A6A;
	padding:           1em;
	overflow:          auto;
    }
    css-style body {
	background-color:  #FFFFFF;
	font-size:         12px;
	line-height:       1.25;
	letter-spacing:    .2px;
	padding-left:      .5em;
    }
    css-style h1 h2 h3 h4 {
	font-family:       Georgia, serif;
	padding-left:      1em;
	margin-top:        1em;
    }
    css-style h1 {
	font-size:         18px;
	color:             #11577b;
	border-bottom:     $hBd;
	margin-top:        0px;
    }
    css-style h2 {
	font-size:         14px;
	color:             #11577b;
	background-color:  #c5dce8;
	padding-left:      1em;
	border:            1px solid #6A6A6A;
    }
    css-style h3 h4 {
	color:             #1674A4;
	background-color:  #e8f2f6;
	border-bottom:     $hBd;
	border-top:        $hBd;
    }
    css-style h3 {
	font-size: 12px;
    }
    css-style h4 {
	font-size: 11px;
    }
    css-style ".keylist dt" ".arguments dt" {
	width: 20em;
	float: left;
	padding: 2px;
	border-top: 1px solid #999;
    }
    css-style ".keylist dt" { font-weight: bold; }
    css-style ".keylist dd" ".arguments dd" {
	margin-left: 20em;
	padding: 2px;
	border-top: 1px solid #999;
    }
    css-style .copy {
	background-color:  #f6fcfc;
	white-space:       pre;
	font-size:         80%;
	border-top:        1px solid #6A6A6A;
	margin-top:        2em;
    }
}

##
## foreach of the man directories specified by args
## convert manpages into hypertext in the directory
## specified by html.
##
proc make-man-pages {html args} {
    global manual overall_title tcltkdesc verbose
    global excluded_pages forced_index_pages process_first_patterns

    makedirhier $html
    set cssfd [open $html/$::CSSFILE w]
    puts $cssfd [css-stylesheet]
    close $cssfd
    set manual(short-toc-n) 1
    set manual(short-toc-fp) [open $html/[indexfile] w]
    puts $manual(short-toc-fp) [htmlhead $overall_title $overall_title]
    puts $manual(short-toc-fp) "<DL class=\"keylist\">"
    set manual(merge-copyrights) {}

    set LQ \u201c
    set RQ \u201d

    foreach arg $args {
	# preprocess to set up subheader for the rest of the files
	if {![llength $arg]} {
	    continue
	}
	set name [lindex $arg 1]
	set file [lindex $arg 2]
	lappend manual(subheader) $name $file
    }
    foreach arg $args {
	if {![llength $arg]} {
	    continue
	}
	set manual(wing-glob) [lindex $arg 0]
	set manual(wing-name) [lindex $arg 1]
	set manual(wing-file) [lindex $arg 2]
	set manual(wing-description) [lindex $arg 3]
	set manual(wing-copyrights) {}
	makedirhier $html/$manual(wing-file)
	set manual(wing-toc-fp) [open $html/$manual(wing-file)/[indexfile] w]
	# whistle
	puts stderr "scanning section $manual(wing-name)"
	# put the entry for this section into the short table of contents
	puts $manual(short-toc-fp) "<DT><A HREF=\"$manual(wing-file)/[indexfile]\">$manual(wing-name)</A></DT><DD>$manual(wing-description)</DD>"
	# initialize the wing table of contents
	puts $manual(wing-toc-fp) [htmlhead $manual(wing-name) \
		$manual(wing-name) $overall_title "../[indexfile]"]
	# initialize the short table of contents for this section
	set manual(wing-toc) {}
	# initialize the man directory for this section
	makedirhier $html/$manual(wing-file)
	# initialize the long table of contents for this section
	set manual(long-toc-n) 1
	# get the manual pages for this section
	set manual(pages) [lsort -dictionary [glob -nocomplain $manual(wing-glob)]]
	# Some pages have to go first so that their links override others
	foreach pat $process_first_patterns {
	    set n [lsearch -glob $manual(pages) $pat]
	    if {$n >= 0} {
		set f [lindex $manual(pages) $n]
		puts stderr "shuffling [file tail $f] to front"
		set manual(pages) [linsert [lreplace $manual(pages) $n $n] 0 \
				       $f]
	    }
	}
	# set manual(pages) [lrange $manual(pages) 0 5]
	foreach manual_page $manual(pages) {
	    set manual(page) [file normalize $manual_page]
	    # whistle
	    if {$verbose} {
		puts stderr "scanning page $manual(page)"
	    } else {
		puts -nonewline stderr .
	    }
	    set manual(tail) [file tail $manual(page)]
	    set manual(name) [file root $manual(tail)]
	    set manual(section) {}
	    if {$manual(name) in $excluded_pages} {
		# obsolete
		if {!$verbose} {
		    puts stderr ""
		}
		manerror "discarding $manual(name)"
		continue
	    }
	    set manual(infp) [open $manual(page)]
	    set manual(text) {}
	    set manual(partial-text) {}
	    foreach p {.RS .DS .CS .SO} {
		set manual($p) 0
	    }
	    set manual(stack) {}
	    set manual(section) {}
	    set manual(section-toc) {}
	    set manual(section-toc-n) 1
	    set manual(copyrights) {}
	    lappend manual(all-pages) $manual(wing-file)/$manual(tail)
	    manreport 100 $manual(name)
	    while {[gets $manual(infp) line] >= 0} {
		manreport 100 $line
		if {[regexp {^[`'][/\\]} $line]} {
		    if {[regexp {Copyright (?:\(c\)|\\\(co).*$} $line copyright]} {
			lappend manual(copyrights) $copyright
		    }
		    # comment
		    continue
		}
		if {"$line" eq {'}} {
		    # comment
		    continue
		}
		if {![parse-directive $line code rest]} {
		    addbuffer $line
		    continue
		}
		switch -exact -- $code {
		    .if - .nr - .ti - .in -
		    .ad - .na - .so - .ne - .AS - .VE - .VS - . {
			# ignore
			continue
		    }
		}
		switch -exact -- $code {
		    .SH - .SS {
			flushbuffer
			if {[llength $rest] == 0} {
			    gets $manual(infp) rest
			}
			lappend manual(text) "$code [unquote $rest]"
		    }
		    .TH {
			flushbuffer
			lappend manual(text) "$code [unquote $rest]"
		    }
		    .QW {
			set rest [regexp -all -inline {\"(?:[^""]+)\"|\S+} $rest]
			addbuffer $LQ [unquote [lindex $rest 0]] $RQ \
			    [unquote [lindex $rest 1]]
		    }
		    .PQ {
			set rest [regexp -all -inline {\"(?:[^""]+)\"|\S+} $rest]
			addbuffer ( $LQ [unquote [lindex $rest 0]] $RQ \
			    [unquote [lindex $rest 1]] ) \
			    [unquote [lindex $rest 2]]
		    }
		    .QR {
			set rest [regexp -all -inline {\"(?:[^""]+)\"|\S+} $rest]
			addbuffer $LQ [unquote [lindex $rest 0]] - \
			    [unquote [lindex $rest 1]] $RQ \
			    [unquote [lindex $rest 2]]
		    }
		    .MT {
			addbuffer $LQ$RQ
		    }
		    .HS - .UL - .ta {
			flushbuffer
			lappend manual(text) "$code [unquote $rest]"
		    }
		    .BS - .BE - .br - .fi - .sp - .nf {
			flushbuffer
			if {"$rest" ne {}} {
			    if {!$verbose} {
				puts stderr ""
			    }
			    manerror "unexpected argument: $line"
			}
			lappend manual(text) $code
		    }
		    .AP {
			flushbuffer
			lappend manual(text) [concat .IP [process-text "[lindex $rest 0] \\fB[lindex $rest 1]\\fR ([lindex $rest 2])"]]
		    }
		    .IP {
			flushbuffer
			regexp {^(.*) +\d+$} $rest all rest
			lappend manual(text) ".IP [process-text [unquote [string trim $rest]]]"
		    }
		    .TP {
			flushbuffer
			while {[is-a-directive [set next [gets $manual(infp)]]]} {
			    if {!$verbose} {
				puts stderr ""
			    }
			    manerror "ignoring $next after .TP"
			}
			if {"$next" ne {'}} {
			    lappend manual(text) ".IP [process-text $next]"
			}
		    }
		    .OP {
			flushbuffer
			lappend manual(text) [concat .OP [process-text \
				"\\fB[lindex $rest 0]\\fR \\fB[lindex $rest 1]\\fR \\fB[lindex $rest 2]\\fR"]]
		    }
		    .PP - .LP {
			flushbuffer
			lappend manual(text) {.PP}
		    }
		    .RS {
			flushbuffer
			incr manual(.RS)
			lappend manual(text) $code
		    }
		    .RE {
			flushbuffer
			incr manual(.RS) -1
			lappend manual(text) $code
		    }
		    .SO {
			flushbuffer
			incr manual(.SO)
			if {[llength $rest] == 0} {
			    lappend manual(text) "$code options"
			} else {
			    lappend manual(text) "$code [unquote $rest]"
			}
		    }
		    .SE {
			flushbuffer
			incr manual(.SO) -1
			lappend manual(text) $code
		    }
		    .DS {
			flushbuffer
			incr manual(.DS)
			lappend manual(text) $code
		    }
		    .DE {
			flushbuffer
			incr manual(.DS) -1
			lappend manual(text) $code
		    }
		    .CS {
			flushbuffer
			incr manual(.CS)
			lappend manual(text) $code
		    }
		    .CE {
			flushbuffer
			incr manual(.CS) -1
			lappend manual(text) $code
		    }
		    .de {
			while {[gets $manual(infp) line] >= 0} {
			    if {[string match "..*" $line]} {
				break
			    }
			}
		    }
		    .. {
			if {!$verbose} {
			    puts stderr ""
			}
			error "found .. outside of .de"
		    }
		    default {
			if {!$verbose} {
			    puts stderr ""
			}
			flushbuffer
			manerror "unrecognized format directive: $line"
		    }
		}
	    }
	    flushbuffer
	    close $manual(infp)
	    # fixups
	    if {$manual(.RS) != 0} {
		if {!$verbose} {
		    puts stderr ""
		}
		puts "unbalanced .RS .RE"
	    }
	    if {$manual(.DS) != 0} {
		if {!$verbose} {
		    puts stderr ""
		}
		puts "unbalanced .DS .DE"
	    }
	    if {$manual(.CS) != 0} {
		if {!$verbose} {
		    puts stderr ""
		}
		puts "unbalanced .CS .CE"
	    }
	    if {$manual(.SO) != 0} {
		if {!$verbose} {
		    puts stderr ""
		}
		puts "unbalanced .SO .SE"
	    }
	    # output conversion
	    open-text
	    set haserror 0
	    if {[next-op-is .HS rest]} {
		set manual($manual(name)-title) \
			"[lrange $rest 1 end] [lindex $rest 0] manual page"
	    } elseif {[next-op-is .TH rest]} {
		set manual($manual(name)-title) "[lindex $rest 0] manual page - [lrange $rest 4 end]"
	    } else {
		set haserror 1
		if {!$verbose} {
		    puts stderr ""
		}
		manerror "no .HS or .TH record found"
	    }
	    if {!$haserror} {
		while {[more-text]} {
		    set line [next-text]
		    if {[is-a-directive $line]} {
			output-directive $line
		    } else {
			man-puts $line
		    }
		}
		man-puts [copyout $manual(copyrights) "../"]
		set manual(wing-copyrights) [merge-copyrights \
			$manual(wing-copyrights) $manual(copyrights)]
	    }
	    #
	    # make the long table of contents for this page
	    #
	    set manual(toc-$manual(wing-file)-$manual(name)) \
		    [concat <DL> $manual(section-toc) </DL>]
	}
	if {!$verbose} {
	    puts stderr ""
	}

	#
	# make the wing table of contents for the section
	#
	set width 0
	foreach name $manual(wing-toc) {
	    if {[string length $name] > $width} {
		set width [string length $name]
	    }
	}
	set perline [expr {118 / $width}]
	set nrows [expr {([llength $manual(wing-toc)]+$perline)/$perline}]
	set n 0
        catch {unset rows}
	foreach name [lsort -dictionary $manual(wing-toc)] {
	    set tail $manual(name-$name)
	    if {[llength $tail] > 1} {
		manerror "$name is defined in more than one file: $tail"
		set tail [lindex $tail [expr {[llength $tail]-1}]]
	    }
	    set tail [file tail $tail]
	    append rows([expr {$n%$nrows}]) \
		    "<td> <a href=\"$tail.htm\">$name</a> </td>"
	    incr n
	}
	puts $manual(wing-toc-fp) <table>
        foreach row [lsort -integer [array names rows]] {
	    puts $manual(wing-toc-fp) <tr>$rows($row)</tr>
	}
	puts $manual(wing-toc-fp) </table>

	#
	# insert wing copyrights
	#
	puts $manual(wing-toc-fp) [copyout $manual(wing-copyrights) "../"]
	puts $manual(wing-toc-fp) "</BODY></HTML>"
	close $manual(wing-toc-fp)
	set manual(merge-copyrights) [merge-copyrights \
		$manual(merge-copyrights) $manual(wing-copyrights)]
    }

    ##
    ## build the keyword index.
    ##
    file delete -force -- $html/Keywords
    makedirhier $html/Keywords
    set keyfp [open $html/Keywords/[indexfile] w]
    puts $keyfp [htmlhead "$tcltkdesc Keywords" "$tcltkdesc Keywords" \
		     $overall_title "../[indexfile]"]
    set letters {A B C D E F G H I J K L M N O P Q R S T U V W X Y Z}
    # Create header first
    set keyheader {}
    foreach a $letters {
	set keys [array names manual "keyword-\[[string totitle $a$a]\]*"]
	if {[llength $keys]} {
	    lappend keyheader "<A HREF=\"$a.htm\">$a</A>"
	} else {
	    # No keywords for this letter
	    lappend keyheader $a
	}
    }
    set keyheader "<H3>[join $keyheader " |\n"]</H3>"
    puts $keyfp $keyheader
    foreach a $letters {
	set keys [array names manual "keyword-\[[string totitle $a$a]\]*"]
	if {![llength $keys]} {
	    continue
	}
	# Per-keyword page
	set afp [open $html/Keywords/$a.htm w]
	puts $afp [htmlhead "$tcltkdesc Keywords - $a" \
		       "$tcltkdesc Keywords - $a" \
		       $overall_title "../[indexfile]"]
	puts $afp $keyheader
	puts $afp "<DL class=\"keylist\">"
	foreach k [lsort -dictionary $keys] {
	    set k [string range $k 8 end]
	    puts $afp "<DT><A NAME=\"$k\">$k</A></DT>"
	    puts $afp "<DD>"
	    set refs {}
	    foreach man $manual(keyword-$k) {
		set name [lindex $man 0]
		set file [lindex $man 1]
		lappend refs "<A HREF=\"../$file\">$name</A>"
	    }
	    puts $afp "[join $refs {, }]</DD>"
	}
	puts $afp "</DL>"
	# insert merged copyrights
	puts $afp [copyout $manual(merge-copyrights)]
	puts $afp "</BODY></HTML>"
	close $afp
    }
    # insert merged copyrights
    puts $keyfp [copyout $manual(merge-copyrights)]
    puts $keyfp "</BODY></HTML>"
    close $keyfp

    ##
    ## finish off short table of contents
    ##
    puts $manual(short-toc-fp) "<DT><A HREF=\"Keywords/[indexfile]\">Keywords</A><DD>The keywords from the $tcltkdesc man pages."
    puts $manual(short-toc-fp) "</DL>"
    # insert merged copyrights
    puts $manual(short-toc-fp) [copyout $manual(merge-copyrights)]
    puts $manual(short-toc-fp) "</BODY></HTML>"
    close $manual(short-toc-fp)

    ##
    ## output man pages
    ##
    unset manual(section)
    if {!$verbose} {
	puts stderr "Rescanning [llength $manual(all-pages)] pages"
    }
    foreach path $manual(all-pages) {
	set manual(wing-file) [file dirname $path]
	set manual(tail) [file tail $path]
	set manual(name) [file root $manual(tail)]
	try {
	    set text $manual(output-$manual(wing-file)-$manual(name))
	    set ntext 0
	    foreach item $text {
		incr ntext [llength [split $item \n]]
		incr ntext
	    }
	    set toc $manual(toc-$manual(wing-file)-$manual(name))
	    set ntoc 0
	    foreach item $toc {
		incr ntoc [llength [split $item \n]]
		incr ntoc
	    }
	    if {$verbose} {
		puts stderr "rescanning page $manual(name) $ntoc/$ntext"
	    } else {
		puts -nonewline stderr .
	    }
	    set outfd [open $html/$manual(wing-file)/$manual(name).htm w]
	    puts $outfd [htmlhead "$manual($manual(name)-title)" \
		    $manual(name) $manual(wing-file) "[indexfile]" \
		    $overall_title "../[indexfile]"]
	    if {($ntext > 60) && ($ntoc > 32)} {
		foreach item $toc {
		    puts $outfd $item
		}
	    } elseif {$manual(name) in $forced_index_pages} {
		if {!$verbose} {puts stderr ""}
		manerror "forcing index generation"
		foreach item $toc {
		    puts $outfd $item
		}
	    }
	    foreach item $text {
		puts $outfd [insert-cross-references $item]
	    }
	    puts $outfd "</BODY></HTML>"
	} on error msg {
	    if {$verbose} {
		puts stderr $msg
	    } else {
		puts stderr "\nError when processing $manual(name): $msg"
	    }
	} finally {
	    catch {close $outfd}
	}
    }
    if {!$verbose} {
	puts stderr "\nDone"
    }
    return {}
}

##
## Helper for assembling the descriptions of base packages (i.e., Tcl and Tk).
##
proc plus-base {var glob name dir desc} {
    global tcltkdir
    if {$var} {
	return [list $tcltkdir/$glob $name $dir $desc]
    }
}

##
## Helper for assembling the descriptions of contributed packages.
##
proc plus-pkgs {type args} {
    global build_tcl tcltkdir tcldir
    if {$type ni {n 3}} {
	error "unknown type \"$type\": must be 3 or n"
    }
    if {!$build_tcl} return
    set result {}
    foreach {dir name} $args {
	set globpat $tcltkdir/$tcldir/pkgs/$dir/doc/*.$type
	if {![llength [glob -nocomplain $globpat]]} continue
	switch $type {
	    n {
		set title "$name Package Commands"
		set dir [string totitle $dir]Cmd
		set desc \
		    "The additional commands provided by the $name package."
	    }
	    3 {
		set title "$name Package Library"
		set dir [string totitle $dir]Lib
		set desc \
		    "The additional C functions provided by the $name package."
	    }
	}
	lappend result [list $globpat $title $dir $desc]
    }
    return $result
}

##
## Set up some special cases. It would be nice if we didn't have them,
## but we do...
##
set excluded_pages {case menubar pack-old}
set forced_index_pages {GetDash}
set process_first_patterns {*/ttk_widget.n */options.n}

try {
    # Parse what the user told us to do
    parse_command_line

    # Some strings depend on what options are specified
    set tcltkdesc ""; set cmdesc ""; set appdir ""
    if {$build_tcl} {
	append tcltkdesc "Tcl"
	append cmdesc "Tcl"
	append appdir "$tcldir"
    }
    if {$build_tcl && $build_tk} {
	append tcltkdesc "/"
	append cmdesc " and "
	append appdir ","
    }
    if {$build_tk} {
	append tcltkdesc "Tk"
	append cmdesc "Tk"
	append appdir "$tkdir"
    }

    # Get the list of packages to try, and what their human-readable
    # names are.
    try {
	set packageDirNameMap {}
	if {$build_tcl} {
	    set f [open $tcltkdir/$tcldir/pkgs/package.list.txt]
	    try {
		foreach line [split [read $f] \n] {
		    if {[string trim $line] eq ""} continue
		    if {[string match #* $line]} continue
		    lappend packageDirNameMap {*}$line
		}
	    } finally {
		close $f
	    }
	}
    } trap {POSIX ENOENT} {} {
	set packageDirNameMap {
	    itcl {[incr Tcl]}
	    tdbc {TDBC}
	}
    }

    #
    # Invoke the scraper/converter engine.
    #
    make-man-pages $webdir \
	[list $tcltkdir/{$appdir}/doc/*.1 "$tcltkdesc Applications" UserCmd \
	     "The interpreters which implement $cmdesc."] \
	[plus-base $build_tcl $tcldir/doc/*.n {Tcl Commands} TclCmd \
	     "The commands which the <B>tclsh</B> interpreter implements."] \
	[plus-base $build_tk $tkdir/doc/*.n {Tk Commands} TkCmd \
	     "The additional commands which the <B>wish</B> interpreter implements."] \
	{*}[plus-pkgs n {*}$packageDirNameMap] \
	[plus-base $build_tcl $tcldir/doc/*.3 {Tcl Library} TclLib \
	     "The C functions which a Tcl extended C program may use."] \
	[plus-base $build_tk $tkdir/doc/*.3 {Tk Library} TkLib \
	     "The additional C functions which a Tk extended C program may use."] \
	{*}[plus-pkgs 3 {*}$packageDirNameMap]
} on error {msg opts} {
    # On failure make sure we show what went wrong. We're not supposed
    # to get here though; it represents a bug in the script.
    puts $msg\n[dict get $opts -errorinfo]
    exit 1
}

# Local-Variables:
# mode: tcl
# End: