perm filename WEB.TXT[3,2]1 blob sn#625181
filedate 1981-11-24 generic text, type C, neo UTF8
COMMENT ⊗ VALID 00002 PAGES
C REC PAGE DESCRIPTION
C00002 00002 WEB is a new language that Don Knuth has created, primarily for his own
WEB is a new language that Don Knuth has created, primarily for his own
use in rewriting TEX. The WEB language allows one to prepare a single
document that contains 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.
Two special programs are used, one called TANGLE (type R TANGLE) to
produce the PASCAL program from the WEB source and the second called WEAVE
(type R WEAVE) to produce another file (from the same WEB source) that is
used with TEX to produce the final hard-copy documentation.
WEB provides a relatively simple, although adequate, macro facility that
permits a PASCAL program to be written in small easily-understood modules.
The TANGLE program assembles these modules into a usable PASCAL program.
The WEAVE program takes appropriate care of typographic details like page
layout and the use of indentation, italics, boldface, etc.,and it supplies
extensive cross-index information that it gathers automatically.
WEB and the November 1981 versions of TANGLE and WEAVE (usable only at
SU-AI) are described in a hard-copy document available from Phyllis
Winkler in MJH 326. This document was, of course, written in WEB and it
speaks well for the new language. Get a copy if you think that you might
like to use WEB. TANGLE and WEAVE are currently being modified for export.