There are no other files named bquote.tty in the archive.
BQUOTE: A "BACKQUOTE" facility
This is similar to the facility of the same name in other
common lisp dialects as follows:
|'form is equivalent to 'form, except that, in the body
of form, an element preceded by a "," is evaluated.
An element preceded by ",@" is evaluated and spliced in,
using APPEND. An element preceded by ",." is spliced
in, using NCONC..
For example, |'(A ,B ,@C ,.D E) is equivalent to
(CONS 'A (CONS B (APPEND C (NCONC D '(E]
| is given a read macro, such that |'form reads in
as (BQUOTE form). (the readmacro is in T, FILERDTBL
and EDITRDTBL). During the READing of form (but
not outside a |' context), "," is given a read macro
such that ,X reads in as (BQUOTE, , X). You will see
BQUOTE and BQUOTE, if you edit a function using
|', although if you prettyprint it, it will prettyprint as
BQUOTE has a macro property to expand out its argument
into the appropriate nest of CONSes and APPENDs, looking
BQUOTE has an entry on PRETTYPRINTMACROS so that BQUOTEd
expressions will prettyprint with |'.
Rationale: No new special characters have been added, so
that old programs, even with ,'s and |'s in them, will
continue to load in.
|' has been implemented in such a way that it
doesn't conflict with the use of | as the "changechar";
since "|" has heretofor been a SEPR, this means that it
should be possible to load BQUOTE and not worry about
files made without "|" preceeded by a "%".
The read macro doesn't expand the form into CONSes and
APPENDs because it is important that functions which
use backquote prettyprint reasonably.