fix docs to explain group-id in yacc

svn: r14062 original commit: 017eb444b435a748b46da78d302b09c115d038c2
15 years ago · 42c6c37b60
parent 54566597c9 4e1eed718b 3258d4798b
commit 42c6c37b60
1 changed files with 2 additions and 1 deletions
--- a/collects/parser-tools/parser-tools.scrbl
+++ b/collects/parser-tools/parser-tools.scrbl
@ -552,7 +552,8 @@ the right choice when using @scheme[lexer] in other situations.
      @item{@scheme[(tokens group-id ...)]

      Declares that all of the tokens defined in each
-      @scheme[group-id] can be used by the parser in the
+      @scheme[group-id]---as bound by @scheme[define-tokens] or
+      @scheme[define-empty-tokens]---can be used by the parser in the
      @scheme[grammar] declaration.}