diff --git a/decode-tools.rkt b/decode-tools.rkt
deleted file mode 100644
index 936d04b..0000000
--- a/decode-tools.rkt
+++ /dev/null
@@ -1,264 +0,0 @@
-#lang racket/base
-(require racket/contract racket/list racket/string racket/match)
-(require sugar "../predicates.rkt" "../tools.rkt")
-
-(module+ test (require rackunit))
-
-(provide (all-defined-out))
-
-;; This module is a library of functions to be used in building pollen decoders.
-
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-;; Typography 
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-
-
-;; insert typographic niceties
-;; ligatures are handled in css
-(define (typogrify str)
-  (string? . -> . string?)
-  ;; make set of functions for replacers
-  (define (make-replacer query replacement)
-    (λ(str) (regexp-replace* query str replacement)))
-  
-  ;; just store the query strings + replacement strings
-  (define dashes 
-    ;; fix em dashes first, else they'll be mistaken for en dashes
-    ;; [\\s ] is whitespace + nonbreaking space
-    '((#px"[\\s ]*(---|—)[\\s ]*" "—") ; em dash
-      (#px"[\\s ]*(--|–)[\\s ]*" "–"))) ; en dash
-  
-  (define smart-quotes
-    '((#px"(?<=\\w)'(?=\\w)" "’") ; apostrophe
-      (#px"(?<!\\w)'(?=\\w)" "‘") ; single_at_beginning
-      (#px"(?<=\\S)'(?!\\w)" "’") ; single_at_end
-      (#px"(?<!\\w)\"(?=\\w)" "“") ; double_at_beginning
-      (#px"(?<=\\S)\"(?!\\w)" "”"))) ; double_at_end
-  
-  
-  ;; put replacers in desired order here
-  (let* ([typogrifiers (append dashes smart-quotes)]
-         [queries (map first typogrifiers)]
-         [replacements (map second typogrifiers)])
-    (define replacers (map make-replacer queries replacements)) 
-    ;; compose goes from last to first, so reverse order
-    ((apply compose1 (reverse replacers)) str)))
-
-
-(module+ test
-  (check-equal? (typogrify "I had --- maybe 13 -- 20 --- hob-nobs.") "I had—maybe 13–20—hob-nobs.")
-  (check-equal? (typogrify "\"Why,\" she could've asked, \"are we in O‘ahu watching 'Mame'?\"") 
-                "“Why,” she could’ve asked, “are we in O‘ahu watching ‘Mame’?”"))
-
-;; insert nbsp between last two words
-(define/contract (nonbreaking-last-space x 
-                                         #:nbsp [nbsp (->string #\u00A0)] 
-                                         #:minimum-word-length [minimum-word-length 6])
-  ((tagged-xexpr?) (#:nbsp string? #:minimum-word-length integer?) . ->* . tagged-xexpr?)
-  ;; todo: parameterize this, as it will be different for each project
-  (define tags-to-pay-attention-to '(p aside)) ; only apply to paragraphs
-  
-  (define (replace-last-space str)
-    (if (#\space . in? . str)
-        (let ([reversed-str-list (reverse (string->list str))]
-              [reversed-nbsp (reverse (string->list nbsp))])
-          (define-values (last-word-chars other-chars) 
-            (splitf-at reversed-str-list (λ(i) (not (eq? i #\space)))))
-          (list->string (reverse (append last-word-chars 
-                                         ; OK for long words to be on their own line.
-                                         (if (< (len last-word-chars) minimum-word-length)
-                                             ; first char of other-chars will be the space, so use cdr
-                                             (append reversed-nbsp (cdr other-chars))
-                                             other-chars)))))
-        str))
-  
-  (define (find-last-word-space x) ; recursively traverse xexpr
-    (cond
-      [(string? x) (replace-last-space x)] 
-      [(tagged-xexpr? x) 
-       (let-values([(tag attr elements) (break-tagged-xexpr x)])
-         (if (> (length elements) 0) ; elements is list of xexprs
-             (let-values ([(all-but-last last) (split-at elements (sub1 (length elements)))]) 
-               (make-tagged-xexpr tag attr `(,@all-but-last ,(find-last-word-space (car last)))))
-             x))]
-      [else x]))
-  
-  (if ((car x) . in? . tags-to-pay-attention-to)
-      (find-last-word-space x)
-      x))
-
-;; todo: make some tougher tests, it gets flaky with edge cases
-(module+ test
-  (check-equal? (nonbreaking-last-space '(p "Hi there")) '(p "Hi there")) ; nbsp in between last two words
-  (check-equal? (nonbreaking-last-space '(p "Hi there") #:nbsp "Ø") '(p "HiØthere")) ; but let's make it visible
-  (check-equal? (nonbreaking-last-space '(p "Hi there") #:nbsp "_up_") '(p "Hi_up_there")) 
-  (check-equal? (nonbreaking-last-space '(p "Hi there") #:nbsp "_up_" #:minimum-word-length 3) 
-                '(p "Hi there")) 
-  (check-equal? (nonbreaking-last-space '(p "Hi here" (em "ho there")) #:nbsp "Ø") '(p "Hi here" (em "hoØthere")))) 
-
-
-; wrap initial quotes for hanging punctuation
-; todo: improve this
-; does not handle <p>“<em>thing</em> properly
-(define/contract (wrap-hanging-quotes nx 
-                                      #:single-prepend [single-pp '(squo)]
-                                      #:double-prepend  [double-pp '(dquo)])
-  ((tagged-xexpr?) (#:single-prepend list? #:double-prepend list?) . ->* . tagged-xexpr?)
-  (define two-or-more-char-string? (λ(i) (and (string? i) (>= (len i) 2))))
-  (define-values (tag attr elements) (break-tagged-xexpr nx))
-  (make-tagged-xexpr tag attr
-                     (if (and (list? elements) (not (empty? elements)))
-                         (let ([new-car-elements  (match (car elements)
-                                                    [(? two-or-more-char-string? tcs)
-                                                     (define str-first (get tcs 0))
-                                                     (define str-rest (get tcs 1 'end))
-                                                     (cond
-                                                       [(str-first . in? . '("\"" "“"))
-                                                        ;; can wrap with any inline tag
-                                                        ;; so that linebreak detection etc still works
-                                                        `(,@double-pp ,(->string #\“) ,str-rest)]
-                                                       [(str-first . in? . '("\'" "‘")) 
-                                                        `(,@single-pp ,(->string #\‘) ,str-rest)]
-                                                       [else tcs])]
-                                                    [(? tagged-xexpr? nx) (wrap-hanging-quotes nx)]
-                                                    [else (car elements)])])
-                           (cons new-car-elements (cdr elements)))
-                         elements)))
-
-
-
-(module+ test
-  (check-equal? (wrap-hanging-quotes '(p "\"Hi\" there")) '(p (dquo "“" "Hi\" there")))
-  (check-equal? (wrap-hanging-quotes '(p "'Hi' there")) '(p (squo "‘" "Hi' there")))
-  (check-equal? (wrap-hanging-quotes '(p "'Hi' there") #:single-prepend '(foo ((bar "ino")))) 
-                '(p (foo ((bar "ino")) "‘" "Hi' there")))
-  ;; make sure tagged-xexpr without elements passes through unscathed
-  (check-equal? (wrap-hanging-quotes '(div ((style "height:2em")))) '(div ((style "height:2em")))))
-
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-;; Lines, blocks, paragraphs
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-
-;; turn the right items into <br> tags
-(define/contract (convert-linebreaks xc #:newline [newline "\n"])
-  ((xexpr-elements?) (#:newline string?) . ->* . xexpr-elements?)
-  ;; todo: should this test be not block + not whitespace?
-  (define not-block? (λ(i) (not (block-xexpr? i))))
-  (filter-not empty?
-              (for/list ([i (len xc)])
-                (let ([item (get xc i)])
-                  (cond
-                    ;; skip first and last
-                    [(or (= i 0) (= i (sub1 (len xc)))) item]
-                    [(equal? item newline)                   
-                     (match (get xc (- i 1) (+ i 2)) ; a three-element slice with x[i] in the middle
-                       ;; only convert if neither adjacent tag is a block
-                       ;; (because blocks automatically force a newline before & after)
-                       [(list (? not-block?) newline (? not-block?)) '(br)]
-                       [else empty])] ; otherwise delete
-                    [else item])))))
-
-(module+ test
-  (check-equal? (convert-linebreaks '("foo" "\n" "bar")) '("foo" (br) "bar"))
-  (check-equal? (convert-linebreaks '("\n" "foo" "\n" "bar" "\n")) '("\n" "foo" (br) "bar" "\n"))
-  (check-equal? (convert-linebreaks '((p "foo") "\n" (p "bar"))) '((p "foo") (p "bar")))
-  (check-equal? (convert-linebreaks '("foo" "\n" (p "bar"))) '("foo" (p "bar")))
-  (check-equal? (convert-linebreaks '("foo" "moo" "bar")) '("foo" "moo" "bar"))
-  (check-equal? (convert-linebreaks '("foo" "moo" "bar") #:newline "moo") '("foo" (br) "bar"))
-  (check-equal? (convert-linebreaks '("foo" "\n\n" "bar")) '("foo" "\n\n" "bar")))
-
-
-
-;; is x a paragraph break?
-(define/contract (paragraph-break? x #:pattern [paragraph-pattern #px"^\n\n+$"])
-  ((any/c) (#:pattern pregexp?) . ->* . boolean?)
-  (and (string? x) (->boolean (regexp-match paragraph-pattern x))))
-
-(module+ test
-  (check-false (paragraph-break? "foo"))
-  (check-false (paragraph-break? "\n"))
-  (check-false (paragraph-break? "\n \n"))
-  (check-true (paragraph-break? "\n \n" #:pattern #px"^\n \n$"))
-  (check-true (paragraph-break? "\n\n"))
-  (check-true (paragraph-break? "\n\n\n")))
-
-
-
-;; Find adjacent newline characters in a list and merge them into one item
-;; Scribble, by default, makes each newline a separate list item
-;; In practice, this is worthless.
-(define/contract (merge-newlines x)
-  (list? . -> . list?)
-  (define (newline? x)
-    (and (string? x) (equal? "\n" x)))
-  (define (not-newline? x)
-    (not (newline? x)))
-  
-  (define (really-merge-newlines xs [acc '()])
-    (if (empty? xs)
-        acc
-        ;; Try to peel the newlines off the front.
-        (let-values ([(leading-newlines remainder) (splitf-at xs newline?)])
-          (if (not (empty? leading-newlines)) ; if you got newlines ...
-              ;; combine them into a string and append them to the accumulator, 
-              ;; and recurse on the rest
-              (really-merge-newlines remainder (append acc (list (string-join leading-newlines ""))))
-              ;; otherwise peel off elements up to the next newline, append them to accumulator,
-              ;; and recurse on the rest
-              (really-merge-newlines (dropf remainder not-newline?) 
-                                     (append acc (takef remainder not-newline?)))))))
-  
-  (cond
-    [(list? x) (really-merge-newlines (map merge-newlines x))]
-    [else x]))
-
-(module+ test
-  (check-equal? (merge-newlines '(p "\n" "foo" "\n" "\n" "bar" (em "\n" "\n" "\n"))) 
-                '(p "\n" "foo" "\n\n" "bar" (em "\n\n\n"))))
-
-
-
-;; todo: add native support for list-xexpr
-;; decode triple newlines to list items
-
-
-;; prepare elements for paragraph testing
-(define/contract (prep-paragraph-flow xc)
-  (xexpr-elements? . -> . xexpr-elements?)
-  (convert-linebreaks (merge-newlines (trim xc whitespace?))))
-
-(module+ test
-  (check-equal? (prep-paragraph-flow '("\n" "foo" "\n" "\n" "bar" "\n" "ino" "\n"))
-                '("foo" "\n\n" "bar" (br) "ino")))
-
-;; apply paragraph tag
-(define/contract (wrap-paragraph xc #:tag [tag 'p]) 
-  ((xexpr-elements?) (#:tag symbol?) . ->* . block-xexpr?)
-  (match xc
-    [(list (? block-xexpr? bx)) bx] ; leave a single block xexpr alone
-    [else (make-tagged-xexpr tag empty xc)])) ; otherwise wrap in p tag
-
-(module+ test
-  (check-equal? (wrap-paragraph '("foo" "bar")) '(p "foo" "bar"))
-  (check-equal? (begin (append-block-tag 'para) (wrap-paragraph #:tag 'para '("foo" "bar"))) 
-                '(para "foo" "bar"))
-  (check-equal? (wrap-paragraph '((p "bar" "foo"))) '(p "bar" "foo"))
-  (check-equal? (wrap-paragraph '((div "bar" "foo") "Hi" )) '(p (div "bar" "foo") "Hi")))
-
-
-;; detect paragraphs
-;; todo: unit tests
-(define/contract (detect-paragraphs elements)
-  (xexpr-elements? . -> . xexpr-elements?)
-  (let ([elements (prep-paragraph-flow elements)]) 
-    (if (ormap paragraph-break? elements) ; need this condition to prevent infinite recursion
-        (map wrap-paragraph (splitf-at* elements paragraph-break?)) ; split into ¶¶
-        elements)))
\ No newline at end of file