Add syntax help menu and cli option

base-packages.lisp

@@ -7,6 +7,11 @@
    #:delim-p
    #:symbol-char-p
    #:proposition-parse-error
+   #:parse-error-position
+   #:parse-error-proposition
+   #:parse-error-message
+   #:*operator-symbol-table*
+   #:*operator-descriptions*
    #:operator-symbol
    #:operator-precedence
    #:interpret-operand
@@ -45,6 +50,7 @@
    #:convert-truth-table-to-html
    #:*table-border-ascii-alist*
    #:*table-border-unicode-alist*
+   #:with-draw-table
    #:typeset-truth-table
    #:*known-formats*
    #:typeset-table-to-format))