#! /usr/bin/awk -f
#	insert_index - inserts TOC file into 4gl documentation
#
#	Marco Greco (marcog@ctonline.it), Catania, Italy
#
#	Initial release: Sep 97
#	Current release: Oct 97
#
#				NOTICE
# 	Permission to use, copy, modify and redistribute this software and
#	its documentation is hereby granted without fee provided that
#
#	- all copies of the software and related documentation contain this
#	  notice and authorship information, UNMODIFIED
#
#	- no fee is charged for the physical act of redistributing this
#	  software or modified copies thereof
# 
#	THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
#	EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
#	WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
#
#	IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
#	INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER
#	RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED
#	OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING
#	OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# 
#	ALL RISKS CONNECTED TO THE USE OF THIS SOFTWARE OR IMPOSSIBILITY 
#	THEREOF LIE SOLELY ON YOU.
#	USE OF THIS SOFTWARE CONSTITUES AGREEMENT WITH THE ABOVE TERMS 
#	AND CONDITIONS.
#
#check parms & get TOC file name
BEGIN		{
		    if (ARGC!=3)
		    {
			print "bad # of arguments"
			exit
		    }
		    indexfile=ARGV[2]
		    ARGV[2]=""
		    in_index=0
		}

#just printed the index - do a plain copy
(indexfile=="")	{
		    print
		    next
		}

#skip all index entries
/^<LI><A HREF/ || /^<UL>/ || /^<\/UL>/ \
		{
		    in_index=1
		    next
		}

#skip blank lines within and after index
(in_index && !length($0)) \
		{ next }

#got first entry - merge index in
/^<P><A NAME/	{

#get source file basename
		    n=substr(FILENAME, match(FILENAME, "[^/]+$"))

#print index
		    print "<UL>"
		    while ((getline a<indexfile)>0)
		    {

#making local handles actually local
			sub(n, "", a)
			print a
		    }
		    print "</UL>"
		    print ""
		    indexfile=""
		}

		{
		    print
		    in_index=0
		}