186 lines
7.1 KiB
Racket
186 lines
7.1 KiB
Racket
#lang racket/base
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(require racket/class racket/match
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(prefix-in text: "text-render.rkt")
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"base-render.rkt"
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"core.rkt"
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file/convertible
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racket/serialize)
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(provide override-render-mixin-single
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override-render-mixin-multi)
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(define (override-render-mixin multi?)
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(mixin (render<%>) ()
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(super-new)
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(define/override (render srcs dests ri)
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(super render srcs dests ri)
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(for ([part (in-list srcs)]
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[dest (in-list dests)])
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(define p (open-output-string))
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(define index-table (make-hash))
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(port-count-lines! p)
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(parameterize ([the-renderer text-renderer]
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[the-part part]
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[the-ri ri]
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[the-text-p p])
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(r-part part 'block index-table))
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(define table-str (format "~s\n" (serialize index-table)))
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(define cb.rktd
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(cond
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[multi?
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(build-path dest "blueboxes.rktd")]
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[else
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(define-values (base name dir?) (split-path dest))
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(build-path base "blueboxes.rktd")]))
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(call-with-output-file cb.rktd
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(λ (port)
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(fprintf port "~a\n" (string-utf-8-length table-str))
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(display table-str port)
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(display (get-output-string p) port))
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#:exists 'truncate)))
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(inherit get-dest-directory)
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(define text-renderer (new (text:render-mixin render%)
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[dest-dir (get-dest-directory)]))))
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(define the-renderer (make-parameter #f))
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(define the-part (make-parameter #f))
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(define the-ri (make-parameter #f))
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(define the-text-p (make-parameter #f))
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;; mode is either
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;; 'block -- search for the blue blocks
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;; or (cons number number) -- search for tags in a block
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(define (r-parts parts mode index-table)
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(for ([part (in-list parts)])
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(r-part part mode index-table)))
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(define (r-part part mode index-table)
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(r-blocks (part-blocks part) mode index-table)
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(r-parts (part-parts part) mode index-table))
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(define (r-blocks blocks mode index-table)
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(for ([block (in-list blocks)])
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(r-block block mode index-table)))
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(define (r-block block mode index-table)
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(match block
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[(struct nested-flow (style blocks))
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(check-and-continue style block mode index-table r-blocks blocks)]
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[(struct compound-paragraph (style blocks))
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(check-and-continue style block mode index-table r-blocks blocks)]
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[(paragraph style content)
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(check-and-continue style block mode index-table r-content content)]
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[(itemization style blockss)
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(check-and-continue style block mode index-table r-blockss blockss)]
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[(table style cells)
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(check-and-continue style block mode index-table r-blockss+cont cells)]
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[(delayed-block resolve)
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(r-block (delayed-block-blocks block (the-ri)) mode index-table)]
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[(traverse-block _)
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(r-block (traverse-block-block block (the-ri)) mode index-table)]))
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(define (check-and-continue style block mode index-table sub-f sub-p)
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(cond
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[(and (pair? mode) (equal? (style-name style) "RBackgroundLabelInner"))
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(define background-label-port (car mode))
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(parameterize ([current-output-port background-label-port])
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(send (the-renderer) render-block block (the-part) (the-ri) #f))
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(sub-f sub-p mode index-table)]
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[(and (eq? mode 'block) (eq? (style-name style) 'boxed) (table? block))
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(cond
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[(for/and ([cells (in-list (table-blockss block))])
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(and (not (null? cells))
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(null? (cdr cells))
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(let ([fst (car cells)])
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(and (table? fst)
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(equal? (style-name (table-style fst)) "together")))))
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(for ([cells (in-list (table-blockss block))])
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(handle-one-block style (car cells) mode index-table r-block (car cells)))]
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[else
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(handle-one-block style block mode index-table sub-f sub-p)])]
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[else
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(sub-f sub-p mode index-table)]))
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(define (handle-one-block style block mode index-table sub-f sub-p)
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;(printf "-----\n") ((dynamic-require 'racket/pretty 'pretty-write) block)
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(define block-port (open-output-string))
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(define background-label-port (open-output-string))
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(define ents (make-hash))
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(define new-mode (cons background-label-port ents))
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(port-count-lines! block-port)
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(port-count-lines! background-label-port)
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(parameterize ([current-output-port block-port])
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(send (the-renderer) render-block block (the-part) (the-ri) #f))
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(sub-f sub-p new-mode index-table)
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;; we just take the first one here
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(define background-label-p (open-input-string (get-output-string background-label-port)))
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(define background-label-line (read-line background-label-p))
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(define text-p (the-text-p))
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(define-values (before-line _1 _2) (port-next-location text-p))
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(define before-position (file-position text-p))
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(fprintf text-p "~a\n"
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(if (eof-object? background-label-line)
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""
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background-label-line))
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;; dump content of block-port into text-p, but first trim
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;; the spaces that appear at the ends of the lines
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(let ([p (open-input-string (get-output-string block-port))])
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(let loop ()
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(define l (read-line p))
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(unless (eof-object? l)
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(display (regexp-replace #rx" *$" l "") text-p)
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(newline text-p)
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(loop))))
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(define-values (after-line _3 _4) (port-next-location text-p))
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(define txt-loc (cons before-position (- after-line before-line)))
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(define ri (the-ri))
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(for ([(k v) (in-hash ents)])
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(let ([k (tag-key k ri)])
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(hash-set! index-table k (cons txt-loc (hash-ref index-table k '()))))))
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(define (r-blockss+cont blockss mode index-table)
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(for ([blocks (in-list blockss)])
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(for ([block (in-list blocks)])
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(unless (eq? block 'cont)
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(r-block block mode index-table)))))
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(define (r-blockss blockss mode index-table)
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(for ([blocks (in-list blockss)])
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(r-blocks blocks mode index-table)))
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(define (r-content content mode index-table)
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(cond
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[(element? content) (r-element content mode index-table)]
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[(list? content)
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(for ([content (in-list content)])
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(r-content content mode index-table))]
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[(string? content) (void)]
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[(symbol? content) (void)]
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[(convertible? content) (void)]
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[(delayed-element? content)
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(r-content (delayed-element-content content (the-ri)) mode index-table)]
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[(traverse-element? content)
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(r-content (traverse-element-content content (the-ri)) mode index-table)]
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[(part-relative-element? content)
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(r-content (part-relative-element-content content (the-ri)) mode index-table)]
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[(multiarg-element? content)
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(r-content (multiarg-element-contents content) mode index-table)]
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[else (error 'r-content "unknown content: ~s\n" content)]))
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(define (r-element element mode index-table)
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(when (index-element? element)
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(when (pair? mode)
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(define ents (cdr mode))
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(define key (index-element-tag element))
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(hash-set! ents (tag-key key (the-ri)) #t)))
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(r-content (element-content element) mode index-table))
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(define override-render-mixin-multi (override-render-mixin #t))
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(define override-render-mixin-single (override-render-mixin #f))
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