.TH PTX 1 "18 January 1983"
generates a permuted index to file
(standard input and output default).
It has three phases: the first does the permutation, generating
one line for each keyword in an input line.
The keyword is rotated to the front.
The permuted file is then
Finally, the sorted lines are rotated so the keyword
comes at the middle of the page.
produces output in the form:
\&.xx "tail" "before keyword" "keyword and after" "head"
for user-defined formatting.
fields incorporate as much of the line as will fit
around the keyword when it is printed at the middle of the page.
at least one of which is an empty string "",
are wrapped-around pieces small enough to fit
in the unused space at the opposite end of the line.
When original text must be discarded, `/' marks the spot.
The following options can be applied:
Fold upper and lower case letters for sorting.
Prepare the output for the phototypesetter;
the default line length is 100 characters.
as the width of the output line.
The default line length is 72 characters.
as the number of characters to allow for each gap
among the four parts of the line as finally printed.
The default gap is 3 characters.
Use as keywords only the words given in the \fIonly\fR file.
Do not use as keywords any words given in the
If the \fB\-i\fR and \fB\-o\fR options are missing, use
Use the characters in the
In any case, tab, newline, and space characters are always used as break characters.
Take any leading nonblank characters of each input line to
be a reference identifier (as to a page or chapter)
separate from the text of the line.
Attach that identifier as a 5th field on each output line.
The index for this manual was generated using
Line length counts do not account for overstriking or