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Comp.programming.literate FAQ

  This document is for new and experienced users of literate programming
  tools.  The purpose is to explain the concept of literate programming
  and to provide a resource for locating files of interest to literate
  programmers and those interested in literate programming.
  ______________________________________________________________________

  Table of Contents:

  1.      Welcome

  1.1.    Disclaimer

  1.2.    Copyright

  1.3.    What's New?

  2.      Introduction or

  3.      How do I get the FAQ?

  3.1.    Literate Programming FAQ

  3.2.    FWEB FAQ

  4.      Is there a newsgroup?

  5.      What internet nodes are of interest to literate programmers?

  6.      What is Literate Programming?

  7.      How do I begin literate programming?

  8.      What literate programming tools are available?

  8.1.    APLWEB

  8.2.    AWEB

  8.3.    CLiP

  8.4.    CWEB

  8.5.    CWEBx3.0

  8.6.    mCWEB

  8.7.    FunnelWeb

  8.8.    FunnelWeb 3.0AC

  8.9.    FWEB

  8.10.   IMPACT

  8.11.   lit2x

  8.12.   Literate Programmer's Workshop (LPW)

  8.13.   MapleWEB

  8.14.   MWEB (Schrod/Detig)

  8.15.   MWEB (Sewell)

  8.16.   noweb

  8.17.   nuweb

  8.18.   ProTeX

  8.19.   RWEB

  8.20.   SchemeWEB

  8.21.   SpideryWEB

  8.22.   WEB

  8.23.   WinWordWEB

  9.      Are there other tools I should know about?

  9.1.    C2LaTeX

  9.2.    c2cweb

  9.3.    c2man

  9.4.    cnoweb

  9.5.    Fold2Web

  9.6.    Funnelweb Mode

  9.7.    noweb.el

  9.8.    nuweb.el

  9.9.    TIE

  9.10.   Web mode

  10.     What other resources are available?

  10.1.   World Wide Web

  10.2.   TeX Resources

  11.     Are there any code examples?

  12.     Bibliographies

  13.     How to anonymously ftp

  14.     Acknowledgements

  15.     End notes
  ______________________________________________________________________

  1.  Welcome

  Information contained in this document is the best available at
  preparation.  The original file was dated October 15, 1993 (just for
  historical purposes).

  1.1.  Disclaimer

  Disclaimer: ``This FAQ is presented with no warranties or guarantees
  of ANY KIND including correctness or fitness for any particular
  purpose.  The author of this document has attempted to verify
  correctness of the data contained herein; however, slip-ups can and do
  happen.  If you use this data, you do so at your own risk.''

  1.2.  Copyright

  Copyright 1993-1997 by David B. Thompson.  All rights reserved
  worldwide. Permission is granted to copy this document for free
  distribution so long as it remains intact and unmodified.  For other
  arrangements, contact the author/maintainer via email:
  <thompson@shelob.ce.ttu.edu>

  1.3.  What's New?

  o  My email address has changed (once again).

  o  Newsgroup is moderated.

  o  Updated fweb entry.

  o  Updated noweb entry.

  o  Added mCWEB entry.

  o  Updated c2cweb entry.

  o  Updated nuweb.el entry.

  o  Updated cLiP entry.

  o  Updated Lee W's examples (from bart).

  o  Last, but not least, new formatting of the FAQ.  Many thanks go to
     Andrew Johnson <ajohnson@gpu.srv.ualberta.ca> for helping make this
     happen.

  2.  Introduction or ``What's this all about?''

  This document is for new and experienced users of literate programming
  tools.  The purpose is to explain the concept of literate programming
  and to provide a resource for locating files of interest to literate
  programmers and those interested in literate programming.

  The Literate Programming (LitProg) Frequently Asked Questions (FAQ)
  list is maintained by Dave Thompson <thompson@shelob.ce.ttu.edu>

  Comments and constructive criticisms are welcome.  Direct flames to
  /dev/null (or nul if you're a msdos user! ;-) If you find an error,
  please report it.  I'm particularly interested in establishing the
  locations of generally available literate programming tools.  If you
  are the author of such a tool and wish to have it included in this
  list, please send email.

  Please note this is a work-in-progress.  It is not complete, and
  probably will never be complete.  Nevertheless, the information
  contained herein may be useful to some.  Use it as it is intended.
  3.  How do I get the FAQ?

  3.1.  Literate Programming FAQ

  You have many ways to get a current copy of this FAQ.  One is to use
  anonymous ftp (if you don't know how, see a later section in this FAQ)
  to connect to one of the Comprehensive TeX Arvchive Network (CTAN)
  sites or the Literate Programming Archive and retrieve a copy of the
  file.  Open an ftp connection to one of the CTAN sites and retrieve
  the file:

       help/LitProg-FAQ

  (For more information on CTAN and the literate programming archive,
  see the section below entitled ``Internet Nodes of Interest to
  Literate Programmers''.)

  3.2.  FWEB FAQ

  David Coker <coker@astro.sunyit.edu> maintains the FWEB FAQ.  The
  current version number is 1.30a.  It can be retrieved in the same way
  as this FAQ.

  The FWEB FAQ exists in various formats, including HyperText (see other
  resources below). In Europe, the complete distribution can also be
  obtained from ftp.desy.de 131.169.10.115 in directory
  /pub/faq/web/fweb/.  It is also available from the literate
  programming archive in the directory LPA/Documentation/faq/fweb (see
  the references to LPA below for more information).

  4.  Is there a newsgroup?

  One of the most important resources is the literate programming
  newsgroup, comp.programming.literate.  Because of the amount of
  spamming and unrelated the posts, the newsgroup is now moderated.
  Posts to the newsgroup are now routed through litprog-
  mod@cs.virginia.edu.  If your news reader does not post through this
  address, then you will be unable to post messages to the newgroup.
  You can read this newsgroup using your standard reader.

  5.  What internet nodes are of interest to literate programmers?

  The principal nodes of interest to literate programmers are the
  Literate Programming Archive (LPA hereafter) and the CTAN
  (Comprehensive TeX Archive Network).

  The Literate Programming Archive (LPA) is:

    Node:       ftp.th-darmstadt.de [130.83.55.75]
    Directory:  programming/literate-programming
    Notes:      Fastest response during off-U.S. [yep] business hours.

  Participating hosts in the Comprehensive TeX Archive Network are:

    ftp.dante.de  (Deutschland)
         -- anonymous ftp                 /tex-archive (/pub/tex /pub/archive)
         -- gopher on node sun.dante.de
         -- e-mail via ftpmail@dante.de
         -- Administrator: <ftpmaint@dante.de>
    ftp.tex.ac.uk (England)
         -- anonymous ftp                 /tex-archive (/pub/tex /pub/archive)
         -- gopher on node gopher.tex.ac.uk
         -- NFS mountable from nfs.tex.ac.uk:/public/ctan/tex-archive
         -- World Wide Web access on www.tex.ac.uk
         -- Administrator: <ctan-uk@tex.ac.uk>

  The site ftp.shsu.edu used to be the American CTAN site.  Apparently,
  that site has fallen into disrepair and should not be considered a
  primary source for either TeX related or literate programming related
  material.  For the record, the address is:

    ftp.shsu.edu  (Texas, USA)
         -- anonymous ftp and gopher      /tex-archive (/pub/tex /pub/archive)
         -- NFS mountable from ftp.SHSU.edu:/pub/ftp/tex-archive
         -- e-mail via ftpmail@ftp.SHSU.edu
         -- World Wide Web access on www.SHSU.edu
         -- Administrator: <CTAN-Mgr@SHSU.edu>

  A list of CTAN archive sites and their mirrors can be found on:

    ftp.dante.de:/tex-archive/CTAN.sites

  I presume that the other CTAN sites mirror this file, but have not
  checked.  As of my last check (September 1994), it contains:

         "In order to reduce network load, it is recommended that you use the
         Comprehensive TeX Archive Network (CTAN) host which is located in the
         closest network proximity to your site."

  Known partial mirrors of the CTAN reside on (alphabetically):

    dongpo.math.ncu.edu.tw (Taiwan)       /tex-archive
    ftp.adfa.oz.au (Australia)            /pub/tex/ctan
    ftp.muni.cz (The Czech Republic)      /pub/tex/CTAN
    ftp.cs.ruu.nl (The Netherlands)       /pub/tex-archive
    ftp.uu.net (Virginia, USA)            /pub/text-processing/TeX
    nic.switch.ch (Switzerland)           /mirror/tex

  Known mirrors of the CTAN reside on (alphabetically):

    ftp.center.osaka-u.ac.jp (Japan)      /CTAN
    ftp.ccu.edu.tw (Taiwan)               /pub/tex
    ftp.cs.rmit.edu.au  (Australia)       /tex-archive
    ftp.duke.edu (North Carolina, USA)    /tex-archive
    ftp.germany.eu.net (Deutschland)      /pub/packages/TeX
    ftp.gwdg.de (Deutschland)             /pub/dante
    ftp.jussieu.fr (France)               /pub4/TeX/CTAN
    ftp.loria.fr (France)                 /pub/unix/tex/ctan
    ftp.mpi-sb.mpg.de (Deutschland)       /pub4/tex/mirror/ftp.dante.de
    ftp.uni-bielefeld.de (Deutschland)    /pub/tex
    ftp.uni-stuttgart.de (Deutschland)    /tex-archive (/pub/tex)
    ftpserver.nus.sg (Singapore)          /pub/zi/TeX
    src.doc.ic.ac.uk (England)            /packages/tex/uk-tex
    sunsite.unc.edu (North Carolina, USA) /pub/packages/TeX
    wuarchive.wustl.edu (Missouri, USA)   /packages/TeX

  Other nodes and directories of interest include:

    Node:       ftp.desy.de [131.169.10.115]
    Directory:  pub/web. Various documents, samples, and the FWEB FAQ.
    Notes:      Has a www server, http://info.desy.de:80/

  6.  What is Literate Programming?

  Literate programming is the combination of documentation and source
  together in a fashion suited for reading by human beings.  In fact,
  literate programs should be enjoyable reading, even inviting!  (Sorry
  Bob, I couldn't resist!)  In general, literate programs combine source
  and documentation in a single file.  Literate programming tools then
  parse the file to produce either readable documentation or compilable
  source.  The WEB style of literate programming was created by D.E.
  Knuth during the development of his TeX typsetting software.

  All the original work revolves around a particular literate
  programming tool called WEB.  Knuth says:

       The philosophy behind WEB is that an experienced system pro-
       grammer, who wants to provide the best possible documenta-
       tion of his or her software products, needs two things
       simultaneously: a language like TeX for formatting, and a
       language like C for programming.  Neither type of language
       can provide the best documentation by itself; but when both
       are appropriately combined, we obtain a system that is much
       more useful than either language separately.

       The structure of a software program may be thought of as a
       web that is made up of many interconnected pieces.  To docu-
       ment such a program we want to explain each individual part
       of the web and how it relates to its neighbours. The typo-
       graphic tools provided by TeX give us an opportunity to
       explain the local structure of each part by making that
       structure visible, and the programming tools provided by
       languages such as C or Fortran make it possible for us to
       specify the algorithms formally and unambigously. By combin-
       ing the two, we can develop a style of programming that max-
       imizes our ability to perceive the structure of a complex
       piece of software, and at the same time the documented pro-
       grams can be mechanically translated into a working software
       system that matches the documentation.

  Another author (Eric W. van Ammers) wrote me a short article treating
  his opinions on literate programming.  The text follows:

       First observation on LP

       About 90% of the disussion on this list is about problems
       with applying some WEB-family member to a particular
       programming language or a special documentation situation.
       This is ridiculous, I think. Let me explain shortly why.

       Lemma 1:

       I have proposed for many years that programming has nothing
       to do with programming langauges, i.e. a good programmer
       makes good programs in any language (given some time to
       learn the syntax) and a bad programmer will never make a
       good program, no matter the language he uses (today many
       people share this view, fortunately).

       Lemma 2:

       Literate Programming has (in a certain way not yet
       completely understood) to do with essential aspects of
       programming.

       Conclusion 1:

       A LP-tool should be independent of programming language.

       Lemma 3:

       It seems likely that the so called BOOK FORMAT PARADIGM ref.
       1 plays an important role in making literate programs work.

       Lemma 4:

       There are very many documentation systems currently being
       used to produce documents in the BOOK FORMAT.

       Conclusion 2:

       A LP-tool should be independent of the documentation system
       that the program author whishes to use.

       My remark some time ago that we should discuss the generic
       properties of an LP-tool was based on the above observation.

       References

       1 Paul W. Oman and Curtus Cook. ``Typographical style is
       more than cosmetic.''  CACM 33, 5, 506-520 (May 1990)

       Second observation on LP

       The idea of a literate program as a text book should be
       extendend even further. I would like to see a literate
       program as an (in)formal argument of the correctness of the
       program.

       Thus a literate program should be like a textbook on
       mathematicics.  A mathematical textbook explains a theory in
       terms of lemma and theorems. But the proofs are never formal
       in the sense that they are obtaind by symbol manipulation of
       a proof checker. Rather the proofs are by so called
       ``informal rigour'', i.e. by very precise and unambiguous
       sentences in a natural language.
  Eric W. van Ammers Department of Computer Science Wageningen
  Agricultural University Dreijenplein 2
  E-mail:      ammers@rcl.wau.nl 6703 HB  Wageningen
  voice:       +31 (0)8370 83356/84154 The Netherlands
  fax:   +31 (0)8370 84731

  Another author (Norman Ramsey) wrote me and asked that his opinions be
  included in the FAQ.  What follows are Norman's comments verbatim.

       I see it's time for the ``how is literate programming dif-
       ferent from verbose commenting'' question.  Perhaps David
       Thompson will get this into the FAQ.  Alert! What follows
       are my opinions.  In no way do I claim to speak for the
       (fractious) literate-programming community.

       How is literate programming different from verbose
       commenting?

       There are three distinguishing characteristics.  In order of
       importance, they are:

       o  flexible order of elaboration

       o  automatic support for browsing

       o  typeset documentation, especially diagrams and
          mathematics

       Flexible order of elaboration means being able to divide
       your source program into chunks and write the chunks in any
       order, independent of the order required by the compiler.
       In principle, you can choose the order best suited to
       explaining what you are doing.  More subtly, this discipline
       encourages the author of a literate program to take the time
       to consider each fragment of the program in its proper
       sphere, e.g., not to rush past the error checking to get to
       the ``good parts.'' In its time and season, each part of the
       program is a good part. (This is the party line; your
       mileage may vary.)

       I find the reordering most useful for encapsulating tasks
       like input validation, error checking, and printing output
       fit for humans --- all tasks that tend to obscure ``real
       work'' when left inline.  Reordering is less important when
       using languages like Modula-3, which has exceptions and
       permits declarations in any order, than when using languages
       like C, which has no exceptions and requires declaration
       before use.

       Automatic support for browsing means getting a table of
       contents, index, and cross-reference of your program.
       Cross-reference might be printed, so that you could consult
       an index to look up the definition of an identifier `foo'.
       With good tools, you might get a printed mini-index on every
       page if you wanted.  Or if you can use a hypertext
       technology, cross-reference might be as simple as clicking
       on an identifier to reach its definition.

       Indexing is typically done automatically or `semi-
       automatically', the latter meaning that identifier
       definitions are marked by hand.  Diligently done semi-
       automatic indexes seem to be best, because the author can
       mark only the identifiers he or she considers important, but
       automatic indexing can be almost as good and requires no
       work.  Some tools allow a mix of the two strategies.
  Some people have applied literate-programming tools to large
  batches of legacy code just to get the table of contents,
  index, and cross-reference.

  I don't use diagrams and mathematics very often, but I
  wouldn't want to have to live without them.  I have worked
  on one or two projects where the ability to use mathematical
  formulae to document the program was indispensible.  I also
  wouldn't like to explain some of my concurrent programs
  without diagrams.  Actually I write almost all of my
  literate programs using only sections headers, lists, and
  the occasional table.

        >Wouldn't it be easier to do one's literate programming using
        >a wysiwyg word processor (e.g. Word for Windows) and
        >indicate what is source code by putting it in a different
        >font?

  The data formats used in wysiwyg products are proprietary,
  and they tend to be documented badly if at all.  They are
  subject to change at the whim of the manufacturer. (I'll go
  out on a limb and say there are no significant wysiwyg tools
  in the public domain.  I hope the Andrew people will forgive
  me.) These conditions make it nearly impossible to write
  tools, especially tools that provide automatic indexing and
  cross-reference support.  The CLiP people have a partial
  solution that works for tools that can export text --- they
  plant tags and delimiters throughout the document that
  enable the reordering transformation (``tangling'').

  People use TeX, roff, and HTML because free implementations
  of these tools are widely available on a variety of
  platforms.  TeX and HTML are well documented, and TeX and
  roff are stable.  TeX is the most portable.  I think I have
  just answered the FAQ ``how come all these tools use TeX,
  anyway?'' :-)

  Norman Ramsey

  7.  How do I begin literate programming?

  A recommended book is D.E. Knuth's collection of articles (1992)
  Literate Programming. Center for the Study of Language and
  Information, Stanford University, ISBN 0-937073-80-6 (pbk).  This book
  gives insight into Knuth's thoughts as he developed the web system of
  literate programming (and TeX for typesetting).  It does not document
  methods for literate programming.

  A recommended book is Wayne Sewell's (1989) Weaving a Program:
  Literate Programming in WEB. Van Nostrand Reinhold, ISBN 0-442-31946-0
  (pbk).  This book focuses on using Knuth's web system.

  Some talk exists in the newsgroup/mailing list for a Usenet University
  course in literate programming.  I'm sure discussion of this topic
  will be welcomed.  If you are interested, please participate.

  8.  What literate programming tools are available?

  A significant number of tools for literate programming are available.
  Most have been ported from their original systems, so support multiple
  computer platforms.  If you are the developer of such a tool, and
  would like to make the software freely available, please send me email
  and I'll reply with a form (like those below) for you to fill in.  (Or
  short-circuit the process and kludge a form from below. :-)

  8.1.  APLWEB

  Developer:      Christoph von Basum <CvB@erasmus.hrz.uni-bielefeld.de>
  Version:        Unknown
  Hardware:       MSDOS
  Languages:      IBM APL2 and STSC APL
  Formatter:      Plain TeX
  Availability:   Anonymous ftp from:
                    LPA:/apl
                    watserv1.uwaterloo.ca:/languages/apl/aplweb
  Readme:         Unknown

  Description:    None available.

  Support:        Unknown

  Note: The status of this particular package is unknown.

  8.2.  AWEB

  Developer:      Unknown
  Version:        Unknown
  Hardware:       Unknown
  Languages:      Ada
  Formatter:      Unknown
  Availability:   Anonymous ftp from:
                    LPA:/ada/web
  Readme:         Unknown

  Description:    None available

  Support:        Not supported.

  8.3.  CLiP

  Developer:      E.W. van Ammers and M.R. Kramer
  Versions:       2.0 and 2.4b (DOS only)
  Platform:       Vax/VMS, Unix, DOS
  Languages:      Any programming language
  Formatter:      Any formatter (TeX, LaTeX, Troff, Runoff, HTML, etc)
                  or any wordprocessor including WYSIWYG systems
                  (Word Perfect, WinWord, Ami Pro, Word Pro, etc.)
  Availability:   Anonymous ftp from:
                    sun01.info.wau.nl:/CLIP/ms_dos        DOS
                    sun01.info.wau.nl:/CLIP/ms_dos_24b    DOS (v. 2.4b)
                    sun01.info.wau.nl:/CLIP/vax_vms       VAX/VMS
                    sun01.info.wau.nl:/CLIP/unix          Unix
                    CTAN:/web/clip
                    LPA:/machines/ms-dos
                    LPA:/machines/vax
  Readme:         With bundle above

  Description:

    CLiP does not use explicit commands to perform the extraction
    process. Rather it recognizes pseudostatements written as comments in
    the programming language in question. CLiP distinguishes
    pseudostatements from ordinary comments because the former comply with
    a particular style. This style can be adjusted to suit virtually any
    programming language. The CLiP approach to LP makes the system
    extremely versatile. It is independent of programming language and
    text processing environment. We designed CLiP to be compatible with
    hypertext systems as well. Some hypertext examples are at
        ftp://sun01.info.wau.nl/clip/html/queens.htm
        ftp://sun01.info.wau.nl/clip/html/pal1.htm

    Features:
    + CLiP imposes virtually no limitations on the text-processing system
      used to produce the documentation. If the text-processor supports
      these items you can
      + structure the documentation according to your own taste.
      + include drawings, pictures, tables etc.
      + disclose your documentation my means of X-ref tables, Indexes,
        Table of contents, Table of tables, Table of figures, etc.
      + typeset the documented code.
    + Extracts any number of modules from a maximum of 64 source files.
    + No pretty-printing. Code from the source files is copied "as is" to
      the module.
    + Appearance of code segments in the documentation matches those of
      the modules to ease the identification of code segments.
    + Supports partially specified data types.
    + Comprehensive user manual (preliminary version) and technical
      description.
    - No automatic generation of a X-ref table for program identifiers.

  Support:  Bugs, problems and assistance by e-mail to
                    Eric.vanAmmers@user.info.wau.nl

  8.4.  CWEB

  Developer:      Silvio Levy and D.E. Knuth
  Version:        3.0
  Hardware:       Unix systems (dos and amiga ports available)
  Languages:      C and C++
  Formatter:      Plain TeX and LaTeX.
  Availability:   Anonymous ftp from:
                    labrea.stanford.edu:/pub/cweb
                    LPA:/c.c++
                    CTAN:/web/c_cpp/cweb
                    DOS version in CTAN:/web/c_cpp/cwb30p8c
                    DOS version in LPA:/machines/ms-dos
                    Amiga version CTAN:/web/c_cpp/AmigaCWEB
                    Mac port of CTANGLE in LPA:/machines/mac
                    LaTeX support in LPA:/c.c++
  Readme:         Bundled with above
  Description:    No description provided.
  Support:        Bugs to levy@math.berkeley.edu

  8.5.  CWEBx3.0

  Developer:      Marc van Leeuwen
  Version:        Unknown
  Hardware:       Any system using ASCII code
  Languages:      ANSI C
  Formatter:      Plain TeX
  Availability:   Anonymous ftp from:
                    ftp.cwi.nl/pub/cweb
  Readme:         Bundled with above
  Brief description:
              A modified implementation of CWEB, with some extensions.
              Provides a mode for full compatibility with Levy/Knuth CWEB.
              The most significant extras are:
              - Typedef declarations affect formatting througout source file
              - Include files are scanned for typedef definitions
              - Flexible selection of layout style
              - Possibility to refer to sections using symbolic labels
              - CTANGLE detects unbalanced braces and parentheses
              - CWEAVE can be made to report syntax errors more easily
              - Some additional mechanisms to avoid formatting problems
              - New and modular set of grammar rules, based on ANSI C syntax
              - Possibility to suppress #line directives
              - A new manual

  Support:
              bugs and remarks to M.van.Leeuwen@cwi.nl
  8.6.  mCWEB

  Developer:              Markus Oellinger
  Version:                        1.0
  Hardware:               Unix
  Languages:              C/C++
  Formatter:              plainTeX
  Availability: anonymous ftp from
                                                          ist.tu-graz.ac.at:/pub/utils/litprog/mcweb/mcweb.tgz
  Readme:                         at same location
  Description:

                                  This is mCWEB 1.0, a descendant of the CWEB system of structured
                                  documentation by Donald E. Knuth and Silvio Levy.  It adds some
                                  features that are indispensable when working in a team. mCWEB
                                  regards a project of a book consisting of several chapter files.
                                  By means of import and export commands, it automatically manages
                                  all relationships between the chapters of a book and to other
                                  books.

                                  Interface documentation is now also part of mCWEB. It is
                                  extracted into a second TeX file. This makes it possible to
                                  define well known interfaces between the individual parts of a
                                  project that will be implemented by different persons.

                                  In addition, mCWEB parses C header files to find out about all
                                  the datatypes defined there.

                                  mCWEB comes with a full completely rewritten user manual and is
                                  compatible with CWEB.

  Support:        Institute of Software Technology
                                                          moell@ist.tu-graz.ac.at

  8.7.  FunnelWeb

  Developer:      Ross N. Williams: ross@guest.adelaide.edu.au
  Version:        Unknown
  Hardware:       MSDOS, Mac, VMS, Sun.  Other ports reported.
  Languages:      No restrictions.
  Formatter:      Plain TeX for printing.  Otherwise, no restrictions.
  Availability:   Anonymous ftp from:
                    CTAN:/web/funnelweb
                    LPA:/independent
                    ftp.adelaide.edu.au:/pub/funnelweb
  Readme:         With bundle above.

  Description:

    FunnelWeb is a production-quality literate-programming tool that
    emphasises simplicity and reliability. Everything about FunnelWeb,
    from the simplicity of its language to the comprehensive tutorial in
    the user's manual, has been designed to make this as simple, as
    practical, and as usable a tool as possible.

    Features:
       + Provides a simple macro preprocessor facility.
       + Can produce typeset documentation.
       + Runs on Sun, VMS VAX, Macintosh, PC, and others.
       + Portable C source code distributed under GNU licence.
       + Comprehensive user's manual including tutorial.
       + Programming-language independent.
       + Can generate multiple output files.
       + Allows complete control over the output text.
       + Regression test suite with over 200 tests.
       + Fully worked example (in /pub/funnelweb/examples).
       - Requires TeX to produce typeset documentation.
       - Typesets program code using TT font only.

  Support:  No formal support available.  Mailing list maintained with
            about 50 subscribers.  Informal assistance available from
            mailing list.

  8.8.  FunnelWeb 3.0AC

  Developer:      Enhanced by A.B.Coates (coates@physics.uq.edu.au)
                  from FunnelWeb v3.0 by Ross N. Williams
                                       (ross@guest.adelaide.edu.au)
  Version:        3.0AC
  Hardware:       MSDOS, Mac, VMS, Sun, OSF/1, Linux, Sys.V, OS/2.
  Languages:      No restrictions.
  Formatter:      Tex, LaTeX, or HTML.
  Availability:   Anonymous ftp from
                    ftp.physics.uq.oz.au:/pub/funnelwebAC30.tar.gz
  Readme:         With bundle above; for FunnelWeb manual see WWW page
          http://www.physics.uq.oz.au:8001/people/coates/funnelweb.html

  Description:
    FunnelWeb 3.0AC is an enhanced version of FunnelWeb (see the entry
    for FunnelWeb).  FunnelWeb is designed to be typesetter independent,
    though FunnelWeb v3.0 only supports (La)TeX as the typesetter.
    FunnelWeb 3.0AC also supports HTML, and creates appropriate
    hypertext links within the document among the code sections.
    FunnelWeb 3.0AC also supports automatic and manual insertion of line
    directives, so that compiler errors can be flagged back to the
    original FunnelWeb source file.  FunnelWeb 3.0AC is completely
    compatible with FunnelWeb v3.0 sources (with one minor exception;
    see the file README.ABC which comes with the FunnelWeb 3.0AC
    distribution).

  Support:  Supported by A.B.Coates (coates@physics.uq.edu.au), subject
            to the time constraints imposed by his thesis.

  8.9.  FWEB

  Developer:      John A. Krommes <krommes@princeton.edu>
  Version:        1.53 (1.60-beta for the experienced, patient, and brave)
  Hardware:       Unix, VMS, and DOS platforms (anything with ANSI C)
  Languages:      C, C++, Fortran-77, Fortran-90, Ratfor, TeX; also, a
                            language-independent mode.
  Formatter:      LaTeX.  Plain TeX may work, but is no longer supported.
  Availability:   Anonymous ftp from:
                    ftp.pppl.gov:/pub/fweb
                    CTAN:/web/fweb
                    LPA:/fweb
                    DOS version in LPA:/machines/ms-dos
  Readme:         In bundle with above.

  Description:

    It also has a well-developed user's manual and its own FAQ (see
    above).  Beginning with 1.40, documentation is maintained in gnu
    texinfo format.  It runs on most platforms: VMS, PC, UNIX, and pretty
    much anything that the GNU C compiler (GCC) is supported for.

    Features:

     + Processes multiple languages during a single run (so one can mix C
       and Fortran, for example).
     + Language-independent mode (v1.40).
     + Ability to turn off pretty-printing (v1.40).
     + Built-in Ratfor translator.
     + Built-in macro preprocessor (closely follows ANSI C, with
       extensions).
     + A style file that allows the user to adjust many parameters and
       behavior patterns of FWEB.
     + Various operator-overloading features that provide additional
       pretty-printing capabilities to languages such as C++ and
       Fortran-90.
     + Numerous miscellaneous features and command-line options.

  Support:        Bug reports and suggestions to krommes@princeton.edu

  8.10.  IMPACT

  Developer:      Timothy Larkin, from Levy/Knuth CWEB 3.1
  Version:        1.0
  Hardware:       Macintosh; requires AppleEvents.
  Languages:      C, C++
  Formatter:      TeX
  Availability:   CTAN archives
  Readme:         A short readme file is included in the SEA archive.

  Description:

    IMPACT implements CTangle from the Levy/Knuth CWEB 3.1. It operates as
    a foreground program, tangling files selected from the Mac File
    Picker. Or it can operate in the background, tangling files in
    response to odoc events sent by other applications, such as editors.

  Support:

    I welcome any reports of bugs. The product will be updated as new
    versions of the CWEB appear. Other features may be added as users
    suggest them.

  8.11.  lit2x

  Developer:      Unknown
  Version:        Unknown
  Hardware:       Unknown
  Languages:      Unknown
  Formatter:      Unknown
  Availability:   Anonymous ftp from:
                    LPA:/independent
  Readme:         Unknown
  Description:    None available
  Support:        Unknown

  8.12.  Literate Programmer's Workshop (LPW)

  Developer:      Norbert Lindenberg
  Version:        1.1
  Hardware:       Apple Macintosh
  Languages:      C++, Object Pascal & others
  Formatter:      self-contained WYSIWYG system
  Availability:   Anonymous ftp from:
                    LPA:/machines/mac
                    CTAN:/web/lpw
                    ftp.apple.com:/pub/literate.prog
  Readme:         With bundle above.  Also comes with 38-page manual.

  Description:

    The Literate Programming Workshop is an environment for the integrated
    development of program source text and documentation in combined
    documents. It consists of a WYSIWYG word processor based on a style
    sheet approach, a mechanism to extract parts of the text in a
    document, and a project management system that handles multi-document
    projects. The system is designed to be used in conjunction with the
    Macintosh Programmer's Workshop: it prepares raw source text for the
    MPW compilers, accepts MPW error messages, and shows them in the
    context of the original documents. Automatic indexing and hypertext
    features allow for easy access to both source text and documentation.

    LPW is shareware.

  Support:        Bugs, problems, and questions to lpw@aol.com.
  8.13.  MapleWEB

  Developer:      Unknown
  Version:        Unknown
  Hardware:       Unknown
  Languages:      Maple
  Formatter:      Unknown
  Availability:   Anonymous ftp from:
                    LPA:/maple
  Readme:         Unknown
  Description:    None
  Support:        Unknown

  8.14.  MWEB (Schrod/Detig)

  Developer:      Joachim Schrod
  Version:        Unknown
  Hardware:       Unknown
  Languages:      Modula-2
  Formatter:      Unknown
  Availability:   Anonymous ftp from:
                    LPA:/modula-2
  Readme:         Unknown
  Description:    None
  Support:        Not supported.

  8.15.  MWEB (Sewell)

  Developer:      Sewell
  Version:        Unknown
  Hardware:       Unknown
  Languages:      Modula-2
  Formatter:      Unknown
  Availability:   Anonymous ftp from:
                    LPA:/modula-2
  Readme:         Unknown
  Description:    None
  Support:        Not supported.

  8.16.  noweb

  Developer:      Norman Ramsey <nr@cs.virginia.edu>
  Version:        2.8
  Hardware:       Unix and DOS platforms (DOS binaries available for v2.7).
  Languages:      All programming languages, singly or in combination.
                  Automatic indexing for C, Icon, Pascal, Standard ML, TeX, Yacc
  Formatter:      Plain TeX, LaTeX, and HTML formatters.
                  Will convert LaTeX to HTML automatically.
  Availability:   Anonymous ftp from:
                    CTAN:/web/noweb
                    LPA:/independent
                    Last recourse, use ftp.cs.virginia.edu:pub/nr

  Readme:         With bundle above, or see the noweb home page:
                    http://www.cs.virginia.edu/~nr/noweb
                  Those without ftp access can consult ``Literate Programming
                  Simplified,'' IEEE Software, September 1994, pp97-105.

  Description:

    noweb is designed to meet the needs of literate programmers while
    retaining the simplest possible input format.  Its primary
    advantages are simplicity, extensibility, and language-independence.
    noweb uses 5 control sequences to WEB's 27.  The noweb manual is
    only 3 pages; an additional page explains how to customize its LaTeX
    output.  noweb works ``out of the box'' with any programming
    language, and supports TeX, latex, and HTML back ends.  A back end
    to support full hypertext or indexing takes about 250 lines; a
    simpler one can be written in 40 lines of awk.  The primary
    sacrifice relative to WEB is that code is not prettyprinted.

    noweb supports indexing and identifier cross-reference, including
    hypertext ``hot links.'' noweb includes a simple, efficient
    LaTeX-to-HTML converter, so you can use hypertext browsers on your
    legacy documents.  noweb can also process nuweb programs, so you can
    use noweb to convert a standard nuweb program to HTML with one
    command.

  Support:        email to the author

  8.17.  nuweb

  Developer:      Preston Briggs: preston@cs.rice.edu
  Version:        0.87
  Hardware:       Unix systems: Sparcs, RS/6000s, HPs; (!) MSDOS and Amiga.
  Languages:      Any programming language or combination of programming
                  languages.
  Formatter:      Latex
  Availability:   Anonymous ftp from:
                    Unix: CTAN:/web/nuweb
                    DOS:  CTAN:/web/nuweb-pc
                    LPA:/independent
                    Amiga: CTAN:/web/nuweb/nuweb_ami
                    Amiga: wuarchive.wustl.edu/pub/aminet
  Readme:         Send mail to preston@cs.rice.edu

  Description:

    A single program that takes a web file written in a combination of
    latex and any programming language(s) and produces a latex file that
    can be pretty printed and a set of files containing code for
    compilation/interpretation by the appropriate language processors.

    Strengths include speed, simplicity, multiple languages, nice indices
    and cross-references, latex.  Doesn't require any special macros or
    macro files.

    Drawbacks: latex-dependent, no code pretty printing, harder to make
    indices than cweb.

    More good stuff: nice support for make, doesn't reformat source files,
    so they're easy to debug.  Lots of control without too much effort.
    That is, it doesn't do too much!

    Future directions... Very little change planned, except perhaps
    refinements in the indexing software.

  Support:        Hack it yourself or send e-mail to preston@cs.rice.edu

  8.18.  ProTeX

  Developer:      Eitan Gurari <gurari@cis.ohio-state.edu>
  Version:        ProTeX 1.1,  AlProTeX 1.4
  Hardware:       Any platform with (La)TeX
  Languages:      Any language
  Formatter:      TeX or LaTeX
  Availability:   Anonymous ftp from:
                    ftp.cis.ohio-state.edu : pub/tex/osu/gurari/
                    LPA:/independent
  Readme:         With bundle above

  Description:
    + Easy to use
    + Extensible
    + Language independent
    + Multiple output files
    + Fast (single compilation provides output and dvi files)
    + No installation is needed besides copying the files (written in TeX)
    Introduction of main features and examples in pub/tex/osu/gurari/LitProg
    Complete manual in Eitan M. Gurari, "TeX and LaTeX: Drawing and
    Literate Programming", McGraw-Hill, 1994

  Support:        gurari@cis.ohio-state.edu

  8.19.  RWEB

  Developer:      Unknown
  Version:        Unknown
  Hardware:       Unknown
  Languages:      Unknown
  Formatter:      Unknown
  Availability:   Anonymous ftp from:
                    LPA:/reduce
  Readme:         Unknown
  Description:    Web generator in AWK.
  Support:        Unknown

  8.20.  SchemeWEB

  Developer:      John D. Ramsdell
  Version:        2.1
  Hardware:       Unix and DOS platforms
  Languages:      Any dialect of Lisp.
  Formatter:      LaTeX.
  Availability:   The Unix version is in the Scheme Repository and it is
                  available via anonymous ftp from:
                    cs.indiana.edu:/pub/scheme-repository/utl/schemeweb.sh
                    LPA:/lisp
                    CTAN:/tex-archive/web/schemeweb
                  The DOS version is part of the PCS/Geneva Scheme system
                  which is available via anonymous ftp from:
                    cui.unige.ch:/pub/pcs
                    LPA:/machines/ms-dos
  Readme:         In bundle with above.

  Description:

    SchemeWEB is a Unix filter that allows you to generate both Lisp and
    LaTeX code from one source file.  The generated LaTeX code formats
    Lisp programs in typewriter font obeying the spacing in the source
    file. Comments can include arbitrary LaTeX commands.  SchemeWEB was
    originally developed for the Scheme dialect of Lisp, but it can easily
    be used with most other dialects.

  Support:        Bug reports to ramsdell@mitre.org.

  8.21.  SpideryWEB

  Developer:      Norman Ramsey <norman@bellcore.com>
  Version:        Unknown
  Hardware:       Unix and DOS platforms
  Languages:      Most Algol-like languages, including C, Ada, Pascal,
                  Awk, and many others.
  Formatter:      Plain TeX and latex for text formatters.
  Availability:   Anonymous ftp from:
                  CTAN
                  LPA:/spiderweb
  Readme:         In distribution.

  Description:

    A system for building language-dependent WEBs. Spider is frozen; no
    further development is planned.

  Support:        Bug reports to spider-bugs@oracorp.com.

  8.22.  WEB

  Developer:      Donald Knuth
  Version:        Unknown
  Hardware:       Unknown
  Languages:      Pascal
  Formatter:      TeX (of course! ;-)
  Availability:   Anonymous ftp from:
                    LPA:/pascal
  Readme:         Unknown

  Description:

  This is the original software that started it all.  The original TeX
  processor was written in WEB.

  Support:        None known.

  8.23.  WinWordWEB

  Developer:      Lee Wittenberg <leew@pilot.njin.net>
  Version:        Unknown
  Hardware:       Needs Microsoft Word for Windows, v.2.x, and, of course,
                  MS-Windows 3.x.
  Languages:      Any programming language.
  Formatter:      Word for Windows 2.x for text formatting and file
                  maintenance.
  Availability:   Anonymous ftp from:
                    bart.kean.edu:pub/leew
                    LPA:/machines/ms-dos
                  World-Wide Web (WWW)
  Readme:         WORDWEB.DOC in the downloadable package describes the
                  system.

  Description:

    WinWordWEB is a set of a Word for Windows macros (plus a paragraph
    style) that provide a crude literate programming environment.  The
    ``look and feel'' of the system is based on Norman Ramsey's noweb, but
    can easily be modified to suit individual tastes.

  Support:

    None.  WinWordWEB was written as a prototype to see if a WYSIWYG
    literate programming system was possible.  It is intended as a jumping
    off point for future work by others. However, the system is
    surprisingly usable as it stands, and the author is interested in
    hearing from users (satisfied and dissatisfied).

    Anyone interested in actively supporting (and improving) the product
    should contact the author via email.

  9.  Are there other tools I should know about?

  First of all, I'll list some not-quite-literate-programming tools.
  Some may consider these to be pretty-printers.  Others may call them
  literate programming tools.  In any event, they don't seem to be quite
  in the same category as the tools listed above, so I'll include them
  here.

  9.1.  C2LaTeX

  Developer:      John D. Ramsdell
  Version:        Unknown
  Hardware:       Unix
  Languages:      C
  Formatter:      LaTeX but it's easy to change the formatter.
  Availability:   Anonymous ftp from
                    omnigate.clarkson.edu:/pub/tex/tex-programs/c2latex.
  Readme:         Absent.  Documentation is in the C source for c2latex.

  Description:

    C2latex provides simple support for literate programming in C.  Given
    a C source file in which the comments have been written in LaTeX,
    c2latex converts the C source file into a LaTeX source file.  It can
    be used to produce typeset listings of C programs and/or documentation
    associated with the program.

    C2latex produces LaTeX source by implementing a small number of rules.
    A C comment that starts at the beginning of a line is copied
    unmodified into the LaTeX source file.  Otherwise, non-blank lines are
    surrounded by a pair of formatting commands (\begin{flushleft} and
    \end{flushleft}), and the lines are separated by \\*. Each non-blank
    line is formatted using LaTeX's \verb command, except comments within
    the line are formatted in an \mbox.

  Support:        Send bug reports to ramsdell@mitre.org.

  9.2.  c2cweb

  Developer:      Werner Lemberg
  Version:        1.5
  Hardware:       DOS, OS/2, Unix (gcc) - CWEB source included
  Languages:      C, C++
  Formatter:      TeX
  Availability:   Anonymous ftp from
                    CTAN:/web/c_cpp/c2cweb
  Readme:         In distribution.

  Description:

    c2cweb will transform plain C or C++ code into a CWEB file to get a
    pretty formatted output. A modified CWEAVE (which transforms the CWEB
    file into a TeX file, see below) is included also.

  Support:        Werner Lemberg <a7971428@unet.univie.ac.at>

  9.3.  c2man

  language:       C, nroff, texinfo, latex, html
  package:        c2man
  version:        2.0 patchlevel 33
  parts:          documentation generator (C -> nroff -man, -> texinfo, ->latex,
                  -> html)
  author:         Graham Stoney <greyham@research.canon.oz.au>
  location:       ftp from any comp.sources.misc archive, in volume42
                  (the version in the comp.sources.reviewed archive is obsolete)
                  ftp /pub/Unix/Util/c2man-2.0.*.tar.gz from dnpap.et.tudelft.nl
      Australia:  ftp /usenet/comp.sources.misc/volume42/c2man-2.0/*
                  from archie.au
      N.America:  ftp /usenet/comp.sources.misc/volume42/c2man-2.0/*
                  from ftp.wustl.edu
      Europe:     ftp /News/comp.sources.misc/volume42/c2man-2.0/*
                  from ftp.irisa.fr
      Japan:      ftp /pub/NetNews/comp.sources.misc/volume42/c2man-2.0/*
                  from ftp.iij.ad.jp
      Patches:    ftp pub/netnews/sources.bugs/volume93/sep/c2man* from lth.se
  description:    c2man is an automatic documentation tool that extracts comments
                  from C source code to generate functional interface
                  documentation in the same format as sections 2 & 3 of the Unix
                  Programmer's Manual. It requires minimal effort from the
                  programmer by looking for comments in the usual places near the
                  objects they document, rather than imposing a rigid
                  function-comment syntax or requiring that the programmer learn
                  and use a typesetting language. Acceptable documentation can
                  often be generated from existing code with no modifications.
  conformance:    supports both K&R and ISO/ANSI C coding styles
  features:       + generates output in nroff -man, TeXinfo, LaTeX or HTML
  format
                  + handles comments as part of the language grammar
                  + automagically documents enum parameter & return values
                  + handles C (/* */) and C++ (//) style comments
                  - doesn't handle C++ grammar (yet)
  requires:       yacc/byacc/bison, lex/flex, and nroff/groff/texinfo/LaTeX.
  ports:          Unix, OS/2, MSDOS, VMS.
  portability:    very high for unix, via Configure
  status:         actively developed; contributions by users are encouraged.
  discussion:     via a mailing list: send "subscribe c2man <Your Name>" (in the
                  message body) to listserv@research.canon.oz.au
  help:           from the author and other users on the mailing list:
                  c2man@research.canon.oz.au
  announcements:  patches appear first in comp.sources.bugs, and then in
                  comp.sources.misc.
  updated:        1994/10/07

  9.4.  cnoweb

  Developer:      Jim Fox
  Version:        1.4 (January 4, 1991)
  Hardware:       Anything with C and TeX.
  Languages:      C
  Formatter:      Plain TeX.
  Availability:   Anonymous ftp from:
                    CTAN
                    LPA:/c.c++
  Readme:         Unknown, cnoweb.tex contains documentation.

  Description:

    cnoweb is as it's name describes: write C, not web.  No tangling or
    weaving is implemented.  Documentation (between standard /* */
    delimiteres) is written in TeX.  cnoweb provides typesetting of
    documentation, an table of contents of routines, and pretty-printing
    of C source.

  Support:        None known.

  9.5.  Fold2Web

  Developer:      Bernhard Lang <lang@tu-harburg.d400.de>
  Version:        V0.8
  Hardware:       MSDOS
  Languages:      All (must allow comment lines)
  Formatter:      LaTeX
  Availability:   Anonymous ftp from:
                    kirk.ti1.tu-harburg.de (134.28.41.50)
                      /pub/fold2web/readme
                      /pub/fold2web/fold2web.zip
  Readme:         In distribution

  Description:

    The idea behind the Fold2Web tool is the following: A programmer can
    write his program source with a folding editor and later map the
    folded source files automatically to WEB-files. The generated WEB-files
    can then be modified by inserting required documentations.

    The advantage by starting program developement with original sources is
    to get short design cycles during the compile/debug steps. By using a
    folding editor the global structuring information can be already
    captured in folds during this developement phase. Fold information is
    typically stored in comment lines and thus will not affect the
    efficiency of the compile/debug design cycle.

    Some folding editors and a folding mode for the emacs are available
    (e.g. see our FUE folding editor for MSDOS machines which is a modified
    micro emacs. Pick it at kirk in directory /pub/fold2web).

    After reaching a stable version of a program source its time to convert
    the source file to a WEB-file and do the program documentation.
    Fold2Web is written to convert folded source text of any programming
    language to nuweb files. The folded structure is kept by mapping folds
    to scraps. Fold markers which differ between languages due to different
    ways of specifying comments can be configured for each language.

    Good results can also achived when given but poor documented program
    sources have to be modified. Such sources can be folded using a folding
    editor to extract the global structures. This offers a global view to
    the program structures and help to understand its functionality.
    Furthermore the program code is not affected, only comment lines are
    inserted. Once folded the program source can be automatically
    translated to a WEB document using the above tool.

  Support:   email to lang@tu-harburg.d400.de

  9.6.  Funnelweb Mode

  Developer:      Daniel Simmons <simmdan@kenya.isu.edu>
  Version:        Unknown
  Availability:   http://www.miscrit.be/~ddw

  Description:

  The other day I did a quick hack to nuweb.el as included with the nuweb
  distribution so as to make a funnelweb-mode.el.  I've only used it
  briefly, and I'm sure that it can be improved quite a bit.  I've been
  thinking about adding support for folding on sections, a pull-down menu
  to select macro definitions (like the recent functions posted to
  gnu.emacs.sources for a C function definition pull-down menu) and some
  kind of tags support for funnelweb.

  Support:        Unknown

  9.7.  noweb.el

  Developer:      Bruce Stephens <bruce@liverpool.ac.uk>
  Version:        Unknown.
  Availability:   LitProg archives (in an email message).

  Description:

  This is a very simple mode I just hacked up.  There's a lot wrong with
  it, but I thought others may be interested, even as it stands.  It
  *requires* text properties, and assumes those used in GNU Emacs 19.22;
  it'll quite likely work with Lucid Emacs, but I haven't tried it.

  I use it with auctex8.1 and cc-mode 3.229, both of which are loaded
  separately (I think my emacs is dumped with them, in fact).

  The idea is to have one mode (which calls itself c-mode, but actually
  has LaTeX-mode keybindings) generally (this means that the code is
  hilighted nicely), and have the code chunks use a different keymap.

  Support:        Email to bruce@liverpool.ac.uk

  9.8.  nuweb.el

  Developer:      Dominique de Waleffe <ddw@acm.org>
  Version:        1.99
  Availability:   Anonymous ftp from:
                    LPA
                    CTAN

  Description:

    Provides a major mode extending Auctex for editing nuweb files. Main
    features (in 2.0):
          - Edit scrap bodies in a separate buffer in a different mode
        (selected using emacs defaults for files, specific indication
        -*-mode-*-, or a buffer-local variable)
            - Extends Auctex commands so that nuweb is called before LaTeX,
            - Easy navigation on scrap definition and use points.
            - Now creates an imenu (C-M-mouse1) with user index entries, macro
        definition positions and file definition positions.

  Support:        Email to ddw@acm.org

  9.9.  TIE

  Developer:      Unknown
  Version:        Unknown
  Hardware:       Unknown
  Availability:   Anonymous ftp from:
                    LPA:/Tools
  Readme:         Unknown

  Description:

  This software merges change files.

  Support:        Unknown

  9.10.  Web mode

  Developer:        Bart Childs <bart@cs.tamu.edu>
  Version:          Unknown
  Tools supported:  web, fweb, cweb, funnelweb
  Availability:     Anonymous ftp from
                      ftp.cs.tamu.edu:pub/tex-web/web/EMACS.web-mode
                      thrain.anu.edu.au:pub/web/EMACS.web-mode

  Description:

  This version works with versions 18 and 19 of Emacs to be best of my
  knowledge.  I have cleaned up a number of documentation items ...
  In the same directory is wm_refcard.tex which is an edited version of
  the famous one to include some web-mode commands.

  The files limbo* are related to its use and notice that half them
  have an uppercase L in them for LaTeX.  The setup is based upon the
  fact that we (I am not alone here) primarily use FWEB for C and Fortran
  programming.

  We are using version 1.40 of FWEB although John Krommes warns that it
  is not mature and the manual is not yet updated.  The info files are!
  We are using LaTeX almost exclusively.  That will likely change and we
  will revert to version 1.30 if the final form of 1.40 cannot return
  to the simple section numbers and avoid the HORRIBLE LATEX 0.1.7.2.4.6
  type section numbers.

  Support:        Unknown

  10.  What other resources are available?

  10.1.  World Wide Web

  An untapped resource (by me anyway ;-) is the World Wide Web.  Marcus
  Speh has expended considerable effort in this regard.  If you're
  connected to WWW, then access:

    http://info.desy.de:80/user/projects/LitProg.html

  If you aren't connected to WWW, telnet to info.cern.ch and explore.
  You can reach Marcus' literate programming pages by typing:

    go http://info.desy.de:80/user/projects/LitProg.html

  or use a WWW browser and access the URL

    ftp://rtfm.mit.edu/pub/usenet/news-answers/www/resources/literate-programming

  Help for people who have only Email and neither WWW nor telnet, can be
  obtained by Email from TEST-LIST@INFO.CERN.CH by sending a message,

    SEND <http_address>,

  for example,

    SEND http://info.desy.de:80/user/projects/LitProg.html

  to retrieve the LitProg library page.   A help file can be retrieved
  by sending a message to the list server above with the text

    HELP

  in the body of the message.  Instructions will be returned by email.
  For literate programming documents, you can try anonymous ftp to
  rtfm.mit.edu and retrieve the official Usenet resource file

    /pub/usenet/news.answers/www/resources/literate-programming

  10.2.  TeX Resources

  Another resource of interest to literate programmers is the
  comp.text.tex newsgroup.   If you're using (La)TeX as your typsetting
  system and have access to internet, then you should investigate this
  resource.

  Another reason the TeX resources should be important is that so many
  of the literate programming tools rely on either plain TeX or LaTeX as
  their text formatter.  (La)TeX software systems exist for most
  computing platforms.  These systems can be found on CTAN and other
  major archive sites.  Use archie to find them or simply ftp to one of
  the CTAN sites and browse.

  11.  Are there any code examples?

  Examples of web programs are included with the FWEB, CWEB, and noweb
  distributions.  nuweb is written in itself.

  Cameron Smith converted the K&R calculator program into a literate
  program.   It can be retrieved by anonymous ftp from:

    niord.shsu.edu [192.92.115.8] directory kr-cweb-sample as
      krcwsamp.zip
    or from
      LPA/Documentation

  Ross Williams has released a funnelweb example.  You can retrieve this
  file from node ftp.adelaide.edu.au 129.127.40.3 as

    /pub/funnelweb/examples/except.*

  This file should be on CTAN as well.

  Lee Wittenberg has posted a few litprog examples.  They are available
  via anonymous ftp from:

          ftp://samson.kean.edu/pub/leew/samples.LP

  The Stanford GraphBase is a large collection of programs by Don Knuth
  for doing all kinds of computations and games with graphs; it is writ-
  ten in (Levy/Knuth) CWEB. More details in the distribution.  It is
  available via anonymous ftp from:

    labrea.stanford.edu:/pub/sgb

  12.  Bibliographies

  Nelson Beebe has collected an extensive bibliography treating literate
  programming.  His work is available for anonymous ftp from
  ftp.math.utah.edu 128.110.198.2 in directory /pub/tex/bib as files:

      litprog.bib
      litprog.ltx
      litprog.twx.

  Although I have not verified this, LPA is an alternate source for
  these files.  Note that they are updated frequently (Nelson says sev-
  eral times each week), so be sure to get a fresh copy before extensive
  use.  Joachim Schrod indicates that these files may be updated daily
  and can be retrieved via anonymous ftp at LPA/documentation.

  13.  How to anonymously ftp

  Pretty much everything mentioned here is available by anonymous FTP.
  FAQ lists cross-posted to news.answers and rec.answers can be gotten
  from rtfm.mit.edu 18.181.0.24, under /pub/usenet/news.answers or under
  /pub/usenet/more.specific.group.name

  "anonymous FTP" is just a way for files to be stored where anyone can
  retrieve them over the Net.    For example, to retrieve the latest
  version of the literate programming FAQ, do the following:

  > ftp rtfm.mit.edu              /* connect to the site; message follows */
  > anonymous                     /* type this when it asks for your name */
  > <your email address>          /* type your address as the password    */
  > cd /pub/usenet                /* go to the directory you want to be   */
  > cd comp.programming.literate  /* one level down (no slash).           */
  > dir                           /* look at what's there                 */
  > get literate-progamming-faq   /* get the file; case-sensitive         */
  > quit                          /* stop this mysterious thing           */

  If your FTP program complains that it doesn't know where the site you
  want to use is, type the numerical address instead of the sitename:

  > ftp 18.181.0.24               /* connect with numerical address */

  If you don't have ftp access, send e-mail to mail-server@rtfm.mit.edu
  with the single word "help" in the body of the message.

  Getting binary files (executables, or any compressed files) is only
  slightly more difficult.   You need to set binary mode inside FTP
  before you transfer the file.

  > binary            /* set binary transfer mode  */
  > ascii             /* set back to text transfer mode */

  FAQs and spoiler lists are generally ascii files; everything else is
  generally binary files.

  Some common extensions on binary files in archive sites are:

    .Z           Compressed; extract with uncompress
    .tar.Z       Compressed 'tape archive'; uncompress then untar or tar -xvf
    .gz or .z    Gnu gzip; use gunzip (available from prep.gnu.ai.mit.edu)
    .sit         (Mac) StufIt archive
    .zip         Extract with Zip or Unzip
    .zoo         Yet another archive/compress program
    .lhe         (Amiga) ?
    .lzh         Lha archive program.
    .arj         (PC) Arj archive program.
    .exe         (PC) Sometimes self-extracting archives-just execute them.
    .uue or .UUE Transfer as text file; use uudecode to convert to binary
    .hqx         (Mac) BinHex format; transfer in text mode

  Generic help can be found in the FAQs of comp.binaries.  <your_sys-
  tem_type> for how to transfer, extract, and virus-check binary files.
  (At rtfm.mit.edu)

  If you can't FTP from your site, use one of the following ftp-by-mail
  servers:

    ftpmail@decwrl.dec.com
    ftpmail@src.doc.ic.ac.uk
    ftpmail@cs.uow.edu.au
    ftpmail@grasp.insa-lyon.fr

  For complete instructions, send a message reading "help" to the
  server.

  If you don't know exactly what you're looking for, or exactly where it
  is, there are programs and servers that can help you.  For more info,
  send e-mail to mail-server@rtfm.mit.with with the body of the message
  reading send usenet/news.answers/finding-sources

  Thanks to Aliza R. Panitz (the "buglady") for this text.  I copied it
  verbatim from her post on faq-maintainers with only minor
  modifications.

  14.  Acknowledgements

  This document would not have happened without the help of many people.
  Among them are Marcus Speh, George Greenwade, Rob Beezer, Joachim
  Schrod, Piet van Oostrum, and Ross N. Williams.  A special thanks to
  Aliza R. Panitz for the text describing how to execute an anonymous
  ftp for files of interest.

  Any omissions from these acknowledgements should be considered an act
  of stupidity on my part.  Of course, the authors of literate
  programming tools mentioned above all play a vital role in the
  vitality of literate programming. Furthermore, participants in the
  comp.programming.literate newsgroup (and associated mailing list) all
  contributed in various fashions.  Thank all of you.

  15.  End notes

  This document will continue to evolve.  I'm planning on adding entries
  for additional literate programming tools and will expand the sections
  on examples as more examples become available. Tools I will include
  are WEB (the original pascal version) for starters. Others will be
  added as I find and document them.  Omission of a particular tool
  should not be considered a snub in any sense--simply an error or
  oversight on my part.



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Last-modified: 1997/08/15