home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Fresh Fish 2
/
FFMCD02.bin
/
new
/
dev
/
misc
/
cweb
/
cweb.man
< prev
next >
Wrap
Text File
|
1993-12-21
|
4KB
|
131 lines
CWEB(1L) Unix Programmer's Manual CWEB(1L)
NAME
ctangle, cweave - translate CWEB to C and/or TeX
SYNOPSIS
ctangle [ -bhp ] [ +s ] webfile[.w] [changefile[.ch]] [outputfile[.c]]
cweave [ -bfhpx ] [ +s ] webfile[.w] [changefile[.ch]] [outputfile[.tex]]
DESCRIPTION
The ctangle program converts a CWEB source document into a C program that
may be compiled in the usual way. The output file includes #line
specifications so that debugging can be done in terms of the CWEB source
file.
The cweave program converts the same CWEB file into a TeX file that may
be formatted and printed in the usual way. It 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.
CWEB allows you to prepare a single document containing all the
information that is needed both to produce a compilable C program and to
produce a well-formatted document describing the program in as much
detail as the writer may desire. The user of CWEB ought to be familiar
with TeX as well as C.
The command line should have one, two, or three names on it. The first
is taken as the CWEB file (and .w is added if there is no extension). If
that file cannot be opened, the extension .web is tried instead. (But .w
is recommended, since .web usually implies Pascal.) If there is a second
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
documentation. If there is a third name, it overrides the default name of
the output file, which is ordinarily the same as the name of the input
file (but on the current directory) with the extension .c or .tex.
Options in the command line may be either turned off with - (if they are
on by default) or turned on with + (if they are off by default). In fact,
the options are processed from left to right, so a sequence like -f +f
corresponds to +f (which is the default).
The -b option suppresses the banner line that normally appears on your
terminal when ctangle or cweave begins. The -h option suppresses the
happy message that normally appears if the processing was successful. The
-p option suppresses progress reports (starred module numbers) as the
processing takes place. If you say -bhp, you get nothing but error
messages.
The +s option prints statistics about memory usage at the end of a run
(assuming that the programs have been compiled with the -DSTAT switch).
There are two other options applicable to cweave only: -f means do not
force a newline after every statement in the formatted output. -x means
omit the index and table of contents.
6/15/92 1
CWEB(1L) Unix Programmer's Manual CWEB(1L)
FILES
/usr/local/lib/tex/inputs/cwebmac.tex TeX macros used by cweave output.
/usr/local/src/cweb/cwebman.tex The user manual.
/usr/local/src/cweb/examples/wc.w An introductory example.
/usr/local/lib/cweb Directory for cweb "include" files.
SEE ALSO
Literate Programming by D.E. Knuth.
Weaving a Program by Wayne Sewell
tex(1), cc(1)
AUTHORS
Don Knuth wrote WEB for TeX and Pascal. Silvio Levy designed and
developed CWEB by adapting the WEB conventions to C and by recoding
everything in CWEB. Knuth began using CWEB and made further refinements.
6/15/92 2