NAME
otangle - translate WEB to Pascal
SYNOPSIS
otangle [ options ] webfile[.web] [ changefile[.ch] ]
DESCRIPTION
This manual page is not meant to be exhaustive. The complete
documentation for this version of TeX can be found in the info file or
manual Web2C: A TeX implementation.
The otangle program converts a Web source document into a Pascal
program that may be compiled in the usual way with the on-line Pascal
compiler (e.g., pc(1)). The output file is packed into lines of 72
characters or less, with the only concession to readability being the
termination of lines at semicolons when this can be done conveniently.
The Web language allows you to prepare a single document containing all
the information that is needed both to produce a compilable Pascal
program and to produce a well-formatted document describing the program
in as much detail as the writer may desire. The user of Web must be
familiar with both TeX and Pascal. Web also provides a relatively
simple, although adequate, macro facility that permits a Pascal program
to be written in small easily-understood modules.
The command line should have either one or two names on it. The first
is taken as the Web file (and .web is added if there is no extension).
If there is another name, it is a change file (and .ch is added if
there is no extension). The change file overrides parts of the Web
file, as described in the Web system documentation.
The output files are a Pascal file and a string pool file, whose names
are formed by adding .p and .pool respectively to the root of the Web
file name.
OPTIONS
This version of otangle understands the following options. Note that
some of these options may render the output unsuitable for processing
by a Pascal compiler.
--help Print help message and exit.
--version
Print version information and exit.
SEE ALSO
pc(1), pxp(1) (for formatting otangle output when debugging), tex(1).
Donald E. Knuth, The Web System of Structured Documentation.
Donald E. Knuth, Literate Programming, Computer Journal 27, 97-111,
1984.
Wayne Sewell, Weaving a Program, Van Nostrand Reinhold, 1989, ISBN
0-442-31946-0.
Donald E. Knuth, TeX for nroff: The Program (Volume B of Computers and
Typesetting), Addison-Wesley, 1986, ISBN 0-201-13437-3.
Donald E. Knuth, Metafont: The Program (Volume D of Computers and
Typesetting), Addison-Wesley, 1986, ISBN 0-201-13438-1.
These last two are by far the largest extant examples of Web programs.
There is an active Internet electronic mail discussion list on the
subject of literate programming; send a subscription request to
litprog-request@shsu.edu to join.
AUTHORS
Web was designed by Donald E. Knuth, based on an earlier system called
DOC (implemented by Ignacio Zabala). The tangle and weave programs are
themselves written in Web. The system was originally ported to Unix at
Stanford by Howard Trickey, and at Cornell by Pavel Curtis.
otangle incorporates extensions for Omega, and is written by John
Plaice and Yannis Haralambous.
This manpage has been written by Norbert Preining for Debian/GNU Linux
by adapting the man page for tangle and may be used, modified and/or
distributed freely by anyone.