suzanne.soy/hyper-literate
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svn: r8494

original commit: d963f4c39ee4f04823b1a6991f38600989464e8d
This commit is contained in:
Eli Barzilay 2008-02-01 11:59:50 +00:00
parent e764c8e02f
commit 43c556ccc2
1 changed files with 86 additions and 114 deletions
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200
collects/scribble/decode.ss
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@ -27,8 +27,7 @@
[splice ([run list?])]
[part-index-decl ([plain-seq (listof string?)]
[entry-seq list?])]
[part-collect-decl ([element (or/c element?
part-relative-element?)])]
[part-collect-decl ([element (or/c element? part-relative-element?)])]
[part-tag-decl ([tag tag?])])
(define (decode-string s)
@ -37,22 +36,19 @@
(#rx"``" ldquo)
(#rx"''" rdquo)
(#rx"'" rsquo))])
(cond
[(null? l) (list s)]
[(regexp-match-positions (caar l) s)
=> (lambda (m)
(append (decode-string (substring s 0 (caar m)))
(cdar l)
(decode-string (substring s (cdar m)))))]
[else (loop (cdr l))])))
(cond [(null? l) (list s)]
[(regexp-match-positions (caar l) s)
=> (lambda (m)
(append (decode-string (substring s 0 (caar m)))
(cdar l)
(decode-string (substring s (cdar m)))))]
[else (loop (cdr l))])))
(define (line-break? v)
(and (string? v)
(equal? v "\n")))
(equal? v "\n"))
(define (whitespace? v)
(and (string? v)
(regexp-match #px"^[\\s]*$" v)))
(and (string? v) (regexp-match? #px"^[\\s]*$" v)))
(define (decode-accum-para accum)
(if (andmap whitespace? accum)
@ -65,95 +61,81 @@
#f))
(define (decode-flow* l keys colls tag-prefix tags vers style title part-depth)
(let loop ([l l][next? #f][keys keys][colls colls][accum null][title title]
[tag-prefix tag-prefix][tags tags][vers vers][style style])
(let loop ([l l] [next? #f] [keys keys] [colls colls] [accum null]
[title title] [tag-prefix tag-prefix] [tags tags] [vers vers]
[style style])
(cond
[(null? l)
(let ([k-tags (map (lambda (k)
`(idx ,(make-generated-tag)))
keys)]
[(null? l)
(let ([k-tags (map (lambda (k) `(idx ,(make-generated-tag))) keys)]
[tags (if (null? tags)
(list `(part ,(make-generated-tag)))
tags)])
(make-versioned-part tag-prefix
(append tags k-tags)
title
style
(let ([l (map (lambda (k tag)
(make-index-element
#f
null
tag
(list `(part ,(make-generated-tag)))
tags)])
(make-versioned-part
tag-prefix
(append tags k-tags)
title
style
(let ([l (append
(map (lambda (k tag)
(make-index-element #f null tag
(part-index-decl-plain-seq k)
(part-index-decl-entry-seq k)
#f))
keys k-tags)])
(append
(if (and title (not (or (eq? 'hidden style)
(and (list? style)
(memq 'hidden style)))))
(cons (make-index-element
#f
null
(car tags)
(list (regexp-replace #px"^(?:A|An|The)\\s" (content->string title)
""))
(list (make-element #f title))
(make-part-index-desc))
l)
l)
colls))
(make-flow (decode-accum-para accum))
null
vers))]
keys k-tags)
colls)])
(if (and title (not (or (eq? 'hidden style)
(and (list? style) (memq 'hidden style)))))
(cons (make-index-element
#f null (car tags)
(list (regexp-replace
#px"^(?:A|An|The)\\s" (content->string title) ""))
(list (make-element #f title))
(make-part-index-desc))
l)
l))
(make-flow (decode-accum-para accum))
null
vers))]
[(title-decl? (car l))
(unless part-depth
(error 'decode
"misplaced title: ~e"
(car l)))
(when title
(error 'decode
"found extra title: ~v"
(car l)))
(loop (cdr l) next? keys colls accum
(title-decl-content (car l))
(title-decl-tag-prefix (car l))
(title-decl-tags (car l))
(title-decl-version (car l))
(title-decl-style (car l)))]
(cond [(not part-depth) (error 'decode "misplaced title: ~e" (car l))]
[title (error 'decode "found extra title: ~v" (car l))]
[else (loop (cdr l) next? keys colls accum
(title-decl-content (car l))
(title-decl-tag-prefix (car l))
(title-decl-tags (car l))
(title-decl-version (car l))
(title-decl-style (car l)))])]
[(flow-element? (car l))
(let ([para (decode-accum-para accum)]
[part (decode-flow* (cdr l) keys colls tag-prefix tags vers style title part-depth)])
(make-versioned-part (part-tag-prefix part)
(part-tags part)
(part-title-content part)
(part-style part)
(part-to-collect part)
(make-flow (append para
(list (car l))
(flow-paragraphs (part-flow part))))
(part-parts part)
(part-version part)))]
[part (decode-flow* (cdr l) keys colls tag-prefix tags vers style
title part-depth)])
(make-versioned-part
(part-tag-prefix part)
(part-tags part)
(part-title-content part)
(part-style part)
(part-to-collect part)
(make-flow (append para (list (car l))
(flow-paragraphs (part-flow part))))
(part-parts part)
(part-version part)))]
[(part? (car l))
(let ([para (decode-accum-para accum)]
[part (decode-flow* (cdr l) keys colls tag-prefix tags vers style title part-depth)])
(make-versioned-part (part-tag-prefix part)
(part-tags part)
(part-title-content part)
(part-style part)
(part-to-collect part)
(make-flow (append para
(flow-paragraphs
(part-flow part))))
(cons (car l) (part-parts part))
(part-version part)))]
[part (decode-flow* (cdr l) keys colls tag-prefix tags vers style
title part-depth)])
(make-versioned-part
(part-tag-prefix part)
(part-tags part)
(part-title-content part)
(part-style part)
(part-to-collect part)
(make-flow (append para (flow-paragraphs (part-flow part))))
(cons (car l) (part-parts part))
(part-version part)))]
[(and (part-start? (car l))
(or (not part-depth)
((part-start-depth (car l)) . <= . part-depth)))
(unless part-depth
(error 'decode
"misplaced part: ~e"
(car l)))
(unless part-depth (error 'decode "misplaced part: ~e" (car l)))
(let ([s (car l)])
(let loop ([l (cdr l)]
[s-accum null])
@ -220,36 +202,26 @@
(part-flow (decode-flow* l null null #f null #f #f #f #f)))
(define (match-newline-whitespace l)
(cond
[(null? l) #f]
[(line-break? (car l))
(skip-whitespace l)]
[(splice? (car l))
(match-newline-whitespace (append (splice-run (car l))
(cdr l)))]
[(whitespace? (car l))
(match-newline-whitespace (cdr l))]
[else #f]))
(cond [(null? l) #f]
[(line-break? (car l))
(skip-whitespace l)]
[(splice? (car l))
(match-newline-whitespace (append (splice-run (car l)) (cdr l)))]
[(whitespace? (car l))
(match-newline-whitespace (cdr l))]
[else #f]))
(define (skip-whitespace l)
(let loop ([l l])
(if (or (null? l)
(not (whitespace? (car l))))
l
(loop (cdr l)))))
(if (or (null? l) (not (whitespace? (car l))))
l
(skip-whitespace (cdr l))))
(define (decode l)
(decode-part l null #f 0))
(define (decode-paragraph l)
(make-paragraph
(decode-content l)))
(make-paragraph (decode-content l)))
(define (decode-content l)
(apply append
(map (lambda (s)
(cond
[(string? s)
(decode-string s)]
[else (list s)]))
(skip-whitespace l)))))
(apply append (map (lambda (s) (if (string? s) (decode-string s) (list s)))
(skip-whitespace l)))))