#!/usr/bin/awk -f
# Copyright 2000 Blossom Associates West
# All rights reserved.

# Makes an HTML table out of a table of tab separated values.
# This version will pass through unchanged lines that do not contain tabs.
# Note that there can be multiple separate tables in such a file.

# This can help when composing HTML that contains tables.
# The tables can be composed with tabs,
# Then the result can be run through this to convert to markup.
# Another fun one is to use FS=" *| *" for composing.

BEGIN {
	FALSE = 0;
	TRUE = ! FALSE;
        FS = "\t";
	OFS = "</td><td>";
	inTable = FALSE;
}

$0 ~ FS { # Maybe could use 1 < NF instead?
	if ( ! inTable ) {
		print "<table>";
		inTable = TRUE;
	}
	$1 = $1; # Replace field separators.
	print "<tr><td>" $0 "</td></tr>";
	next;
}

{
	if ( inTable ) {
		printf "</table>\n";
		inTable = FALSE;
	}
	print;
}

END {
	if ( inTable ) {
		printf "</table>\n";
		inTable = FALSE;
	}
}