* parser.y: Allow the (. expr) syntax to denote expr.

* eval.h: Declare existing lambda_s extern variable.

* lib.c (obj_print, obj_pprint): print (lambda sym ...)
as (lambda (. sym) ...) and (lambda sym) as (lambda (. sym)).

* txr.1: document it.

1 files changed, 1 insertions, 0 deletions

diff --git a/parser.y b/parser.y
index a2553f88..819630b9 100644
--- a/parser.y
+++ b/parser.y
@@ -702,6 +702,7 @@ hash : HASH_H list              { if (unquotes_occur($2))
 
 list : '(' n_exprs ')'          { $$ = rl($2, num($1)); }
      | '(' ')'                  { $$ = nil; }
+     | '(' '.' n_expr ')'       { $$ = $3; }
      | '[' n_exprs ']'          { $$ = rl(cons(dwim_s, $2), num($1)); }
      | '[' ']'                  { $$ = rl(cons(dwim_s, nil), num($1)); }
      | '@' n_expr               { if (consp($2))