- Point to pub/FreeBSD/ports/packages/Latest/ for packages.

- Fix gcl.tgz package link.
- Add more LISP implementation package links.
- Mention that Perl is a package now (except for 4.x releases).
- Add description & package links for:
  Icon, Logo, Python, Tcl.
- Add link to lang/gpc port.

en_US.ISO8859-1/books/developers-handbook/tools/chapter.sgml

@@ -117,7 +117,7 @@
 
       <para>Here is a list of interpreters that are available as
 	<ulink
-	  URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/">FreeBSD
+	  URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/">FreeBSD
 	  packages</ulink>, with a brief discussion of some of the
 	more popular interpreted languages.</para>
 
@@ -150,7 +150,7 @@
 		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/pbasic.tgz">Phil
 		Cockroft's Basic Interpreter</ulink> (formerly Rabbit
 	      Basic) are available as <ulink
-		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/">FreeBSD
+		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/">FreeBSD
 		packages</ulink>.</para>
 	  </listitem>
 	</varlistentry>
@@ -170,9 +170,17 @@
 	    <para>Lisp is an extremely powerful and sophisticated
 	      language, but can be rather large and unwieldy.</para>
 
-	    <para>FreeBSD has <ulink
+	    <para>Various implementations of Lisp that can run on UNIX
-		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/gcl-2.0.tgz">GNU
+	      systems are available as packages for FreeBSD.
-		Common Lisp</ulink> available as a package.</para>
+	      <ulink URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/gcl.tgz">GNU Common Lisp</ulink>,
+	      <ulink URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/clisp.tgz">CLISP</ulink>
+	      by Bruno Haible and Michael Stoll,
+	      <ulink URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/cmucl.tgz">CMUCL</ulink>
+	      which includes a highly-optimizing compiler too, or
+	      simpler Lisp implementations, like
+	      <ulink URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/slisp.tgz">SLisp</ulink>
+	      which implements most of the Common Lisp constructs in a
+	      few hundred lines of C code.</para>
 	  </listitem>
 	</varlistentry>
 
@@ -184,8 +192,10 @@
 	      scripts; also often used on World Wide Web servers for
 	      writing <acronym>CGI</acronym> scripts.</para>
 
-	    <para>Perl is installed as <command>/usr/bin/perl</command> in the
+	    <para>Perl is available as a <ulink
-	      FreeBSD base system.</para>
+	      URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/perl.tgz">package</ulink>
+	      for all FreeBSD releases, and is installed as <command>/usr/bin/perl</command> in the
+	      base system of 4.x releases.</para>
 
 	  </listitem>
 	</varlistentry>
@@ -214,9 +224,11 @@
 	  <term>Icon</term>
 
 	  <listitem>
-	    <para><ulink
+	    <para>Icon is a high-level language with extensive
-		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/icon.tgz">The
+	      facilities for processing strings and structures.
-		Icon Programming Language</ulink>.</para>
+	      A <ulink
+		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/icon.tgz">package</ulink>
+	      is available for FreeBSD.</para>
 	  </listitem>
 	</varlistentry>
 
@@ -224,9 +236,16 @@
 	  <term>Logo</term>
 
 	  <listitem>
-	    <para><ulink
+	    <para>Logo is a language that is easy to learn, and has
-		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/ucblogo.tgz">Brian
+	      been used as an introductory programming language in
-		Harvey's LOGO Interpreter</ulink>.</para>
+	      various courses.  It is an excellent tool to work with
+	      when teaching programming in small ages, as it makes the
+	      creation of elaborate geometric shapes an easy task even
+	      for very small children.</para>
+
+	    <para>A package is available for FreeBSD of Brian Harvey's <ulink
+		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/ucblogo.tgz">LOGO
+		Interpreter</ulink>.</para>
 	  </listitem>
 	</varlistentry>
 
@@ -234,10 +253,35 @@
 	  <term>Python</term>
 
 	  <listitem>
-	    <para><ulink
+	    <para>Python is an Object-Oriented, intepreted language.
-		URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/python.tgz">The
+	      Its advocates argue that it is one of the best languages
-		Python Object-Oriented Programming
+	      to start programming with, since it is relatively easy
-		Language</ulink></para>
+	      to start with, but is not limited in comparison to other
+	      popular intepreted languages that are used for the
+	      development of large, complex applications (Perl and
+	      Tcl are two other languages that are popular for such tasks).</para>
+
+	    <para>A package of the latest version of Python for
+	      FreeBSD is available
+	      <ulink URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/python.tgz">here</ulink>.</para>
+	  </listitem>
+	</varlistentry>
+
+	<varlistentry>
+	  <term>Tcl and Tk</term>
+
+	  <listitem>
+	    <para>Tcl is an embeddable, intepreted language, that has
+	      become widely used and became popular mostly because of its portability to many
+	      platforms.  It can be used both for quickly writing
+	      small, prototype applications, or (when combined with
+	      Tk, a GUI toolkit) fully-fledged, featureful
+	      programs.</para>
+
+	    <para>Various versions of Tcl are available as packages
+	      for FreeBSD.  The latest version is, as of this writing,
+	      <ulink URL="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/Latest/tcl83.tgz">Tcl
+		version 8.3</ulink>.</para>
 	  </listitem>
 	</varlistentry>
       </variablelist>
@@ -278,7 +322,8 @@
 	designed as an educational language, and is quite a good
 	language to start with.  FreeBSD does not include Pascal
 	support in the base system, but the GNU Pascal Compiler (gpc)
-	is available in the ports collection.</para>
+	is available in the ports collection as
+	<filename role="package">lang/gpc</filename>.</para>
 
       <para>As the edit-compile-run-debug cycle is rather tedious when
 	using separate programs, many commercial compiler makers have