fixed broken syntax error checks

svn: r14187

original commit: afc5ad8d830ea484ee2eb5e4ad309e215ac95e67

collects/parser-tools/lex.ss

@@ -81,7 +81,8 @@
                         (((special) act)
                            (not (ormap
                                  (lambda (x)
-                                   (module-or-top-identifier=? (syntax special) x))
+                                   (and (identifier? #'special)
+                                        (module-or-top-identifier=? (syntax special) x)))
                                  ids)))
                         (_ #t)))
                     spec/re-act-lst))

collects/parser-tools/private-lex/actions.ss

@@ -1,19 +1,16 @@
-(module actions mzscheme
+#lang scheme/base
-  (provide (all-defined))
-  (require syntax/stx)
 
-  ;; get-special-action: (syntax-object list) syntax-object syntax-object  -> syntax-object
+(provide (all-defined-out))
-  ;; Returns the first action from a rule of the form ((which-special) action)
+(require syntax/stx)
-  (define (get-special-action rules which-special none)
-    (cond
-      ((null? rules) none)
-      (else
-       (syntax-case (car rules) ()
-         (((special) act)
-          (module-or-top-identifier=? (syntax special) which-special)
-          (syntax act))
-         (_ (get-special-action (cdr rules) which-special none))))))
 
-
+;; get-special-action: (syntax-object list) syntax-object syntax-object  -> syntax-object
-  
+;; Returns the first action from a rule of the form ((which-special) action)
-  )
+(define (get-special-action rules which-special none)
+  (cond
+    ((null? rules) none)
+    (else
+     (syntax-case (car rules) ()
+       (((special) act)
+        (and (identifier? #'special) (module-or-top-identifier=? (syntax special) which-special))
+        (syntax act))
+       (_ (get-special-action (cdr rules) which-special none))))))