source: downloads/tcl8.5.2/tools/man2html.tcl @ 45

#!/bin/sh
# \
exec tclsh "$0" ${1+"$@"}

package require Tcl 8.4

# man2html.tcl --
#
# This file contains procedures that work in conjunction with the
# man2tcl program to generate a HTML files from Tcl manual entries.
#
# Copyright (c) 1996 by Sun Microsystems, Inc.
#
# SCCS: @(#) man2html.tcl 1.5 96/04/11 20:21:43
#


# sarray -
#
# Save an array to a file so that it can be sourced.
#
# Arguments:
# file -                Name of the output file
# args -                Name of the arrays to save
#
proc sarray {file args} {
    set file [open $file w]
    foreach a $args {
        upvar $a array
        if {![array exists array]} {
            puts "sarray: \"$a\" isn't an array"
            break
        }       
    
        foreach name [lsort [array names array]] {
            regsub -all " " $name "\\ " name1
            puts $file "set ${a}($name1) \{$array($name)\}"
        }
    }
    close $file
}


# footer --
#
# Builds footer info for HTML pages
#
# Arguments:
# packages -            List of packages to link to.

proc footer {packages} {
    lappend f "<HR>"
    set h {[}
    foreach package $packages {
        lappend h "<A HREF=\"../$package/contents.html\">$package</A>"
        lappend h "|"
    }
    lappend f [join [lreplace $h end end {]} ] " "]
    lappend f "<HR>"
    lappend f "<PRE>Copyright &#169; 1989-1994 The Regents of the University of California."
    lappend f "Copyright &#169; 1994-1996 Sun Microsystems, Inc."
    lappend f "</PRE>"
    return [join $f "\n"]
}


# doDir --
#
# Given a directory as argument, translate all the man pages in
# that directory.
#
# Arguments:
# dir -                 Name of the directory.

proc doDir dir {
    foreach f [lsort [glob -directory $dir "*.\[13n\]"]] {
        do $f   ;# defined in man2html1.tcl & man2html2.tcl
    }
}


# main --
#
# Main code for converting Tcl manual pages to HTML.
#
# Arguments:
# argv -                List of arguments to this script.

proc main {argv} {
    global html_dir
    # Global vars used in man2html1.tcl and man2html2.tcl
    global NAME_file KEY_file lib state curFile file inDT textState nestStk
    global curFont fontStart fontEnd noFillCount footer

    if {[llength $argv] < 2} {
        puts stderr "usage: $::argv0 html_dir tcl_dir packages..."
        puts stderr "usage: $::argv0 -clean html_dir"
        exit 1
    }

    if {[lindex $argv 0] eq "-clean"} {
        set html_dir [lindex $argv 1]
        puts -nonewline "recursively remove: $html_dir? "
        flush stdout
        if {[gets stdin] eq "y"} {
            puts "removing: $html_dir"
            file delete -force $html_dir
        }
        exit 0
    }

    set html_dir [lindex $argv 0]
    set tcl_dir  [lindex $argv 1]
    set packages [lrange $argv 2 end]
    set homeDir  [file dirname [info script]]

    #### need to add glob capability to packages ####

    # make sure there are doc directories for each package

    foreach i $packages {
        if {![file exists $tcl_dir/$i/doc]} {
            puts stderr "Error: doc directory for package $i is missing"
            exit 1
        }
        if {![file isdirectory $tcl_dir/$i/doc]} {
            puts stderr "Error: $tcl_dir/$i/doc is not a directory"
            exit 1
        }
    }

    # we want to start with a clean sheet

    if {[file exists $html_dir]} {
        puts stderr "Error: HTML directory already exists"
        exit 1
    } else {
        file mkdir $html_dir
    }

    set footer [footer $packages]

    # make the hyperlink arrays and contents.html for all packages

    foreach package $packages {
        file mkdir $html_dir/$package
    
        # build hyperlink database arrays: NAME_file and KEY_file
        #
        puts "\nScanning man pages in $tcl_dir/$package/doc..."
        uplevel \#0 [list source $homeDir/man2html1.tcl]
    
        doDir $tcl_dir/$package/doc

        # clean up the NAME_file and KEY_file database arrays
        #
        catch {unset KEY_file()}
        foreach name [lsort [array names NAME_file]] {
            set file_name $NAME_file($name)
            if {[llength $file_name] > 1} {
                set file_name [lsort $file_name]
                puts "Warning: '$name' multiply defined in: $file_name;\
                        using last"
                set NAME_file($name) [lindex $file_name end]
            }
        }
        # sarray $html_dir/$package/xref.tcl NAME_file KEY_file

        # build the contents file from NAME_file
        #
        puts "\nGenerating contents.html for $package"
        doContents $html_dir/$package/contents.html $lib ;# defined in man2html1.tcl

        # now translate the man pages to HTML pages
        #
        uplevel \#0 [list source $homeDir/man2html2.tcl]
        puts "\nBuilding html pages from man pages in $tcl_dir/$package/doc..."
        doDir $tcl_dir/$package/doc

        unset NAME_file
    }
}


if [catch { main $argv } result] {
    global errorInfo
    puts stderr $result
    puts stderr "in"
    puts stderr $errorInfo
}