Fix inconsistency of Lisp var visibility in TXR.

Numerous places in match.c are using assoc(sym, bindings)
logic to access a variable, which doesn't see the Lisp
globals, as we would like. For example, if foo is
defined using (defvar foo), @(set foo "A") doesn't work.

This is subject to the compatibility option.

* match.c (tx_lookup_var): New static function.
(dest_set, h_var, h_coll, h_parallel, h_fun, v_next,
v_parallel, v_gather, v_collect, v_flatten, v_cat,
v_output, v_filter, v_fun, match_filter): Use tx_lookup_var
instead of assoc for all lookups that see the full variable
scope. Only variable lists known to be locally consed up
are scanned with just assoc.

* txr.1: Documented new rules and added compatibility notes.

0 files changed, 0 insertions, 0 deletions