clean up grammar files so they compile without error

also fix a bug in the tokenizer for PRIORITY which was missing an :or

this should close github issue #2

laundry/grammar/planning.rkt

@@ -14,3 +14,5 @@ plan-open : CHARS-OPENED ; XXX suggested improvement
 plan-close : CHARS-CLOSED
 
 timestamp : TIMESTAMP
+
+wsnn : WSNN

laundry/grammar/timestamp.rkt

@@ -1,3 +1,4 @@
+#lang brag
 ;;; timestamps
 
 ; the org spec is currently silent on how org will handle dates beyond
@@ -85,3 +86,7 @@ ts-rod-entry : ts-rod-mark ts-rod-value ts-rod-unit
 ts-rod-mark : "+" | "++" | ".+" | "-" | "--"
 ts-rod-value : digits
 ts-rod-unit : "h" | "d" | "w" | "m" | "y"
+
+space : SPACE
+digits : DIGITS
+not-lsb-hy-plus-digit-whitespace : WAT

laundry/tokenizer.rkt

@@ -301,7 +301,7 @@ using from/stop-before where the stop-before pattern contains multiple charachte
         (token 'TAGS lexeme)]
        ["COMMENT" (token 'CHARS-COMMENT lexeme)] ; this must come befor RTK
        [(:or #,@keywords) (token 'RUNTIME-TODO-KEYWORD lexeme)]
-       [(:seq "[#" (0-9 alpha) "]") (token 'PRIORITY lexeme)] ; lower case allowed but it is upcased internally (base36)
+       [(:seq "[#" (:or 0-9 alpha) "]") (token 'PRIORITY lexeme)] ; lower case allowed but it is upcased internally (base36)
        [(:or " " "\t") (token 'BLANK lexeme)] ; unfortunately we still have to split on space
        [(:seq (:+ (:~ #;"*" "[" "]" ":" "\n" " " "\t")))
         (token 'OTHER lexeme)]