98 lines
3.1 KiB
Scheme
98 lines
3.1 KiB
Scheme
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(module text-render mzscheme
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(require "struct.ss"
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(lib "class.ss"))
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(provide render-mixin)
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(define (render-mixin %)
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(class %
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(define/override (get-substitutions)
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'((#rx"---" "\U2014")
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(#rx"--" "\U2013")
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(#rx"``" "\U201C")
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(#rx"''" "\U201D")
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(#rx"'" "\U2019")))
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(inherit render-content
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render-paragraph
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render-flow-element)
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(define/override (render-part d ht)
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(let ([number (collected-info-number (part-collected-info d))])
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(when (or (ormap values number)
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(part-title-content d))
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(newline))
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(for-each (lambda (n)
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(when n
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(printf "~s." n)))
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(reverse number))
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(when (part-title-content d)
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(when (ormap values number)
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(printf " "))
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(render-content (part-title-content d) d ht))
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(when (or (ormap values number)
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(part-title-content d))
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(newline))
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(newline)
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(render-flow (part-flow d) d ht)
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(let loop ([pos 1]
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[secs (part-parts d)])
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(unless (null? secs)
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(newline)
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(render-part (car secs) ht)
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(loop (add1 pos) (cdr secs))))))
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(define/override (render-flow f part ht)
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(let ([f (flow-paragraphs f)])
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(if (null? f)
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null
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(apply
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append
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(render-flow-element (car f) part ht)
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(map (lambda (p)
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(newline) (newline)
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(render-flow-element p part ht))
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(cdr f))))))
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(define/override (render-table i part ht)
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(let ([flowss (table-flowss i)])
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(if (null? flowss)
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null
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(apply
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append
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(map (lambda (d) (render-flow d part ht)) (car flowss))
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(map (lambda (flows)
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(newline)
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(map (lambda (d) (render-flow d part ht)) flows))
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(cdr flowss))))))
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(define/override (render-itemization i part ht)
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(let ([flows (itemization-flows i)])
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(if (null? flows)
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null
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(apply append
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(begin
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(printf "* ")
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(render-flow (car flows) part ht))
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(map (lambda (d)
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(printf "\n\n* ")
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(render-flow d part ht))
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(cdr flows))))))
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(define/override (render-other i part ht)
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(cond
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[(symbol? i)
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(display (case i
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[(mdash) "\U2014"]
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[(ndash) "\U2013"]
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[(ldquo) "\U201C"]
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[(rdquo) "\U201D"]
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[(rsquo) "\U2019"]
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[(rarr) "->"]
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[else (error 'text-render "unknown element symbol: ~e" i)]))]
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[(string? i) (display i)]
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[else (write i)])
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null)
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(super-new))))
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