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#lang racket/base
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(require pollen/decode racket/format rackunit txexpr)
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(check-true (begin (register-block-tag 'barfoo) (block-txexpr? '(barfoo "foo"))))
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(check-equal? (smart-dashes "I had --- maybe 13 -- 20 --- hob-nobs.") "I had—maybe 13–20—hob-nobs.")
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(check-equal? (smart-quotes "\"Why,\" she could've asked, \"are we in O‘ahu watching 'Mame'?\"")
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"“Why,” she could’ve asked, “are we in O‘ahu watching ‘Mame’?”")
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(check-equal? (smart-quotes "\"\'Impossible.\' Yes.\"") "“‘Impossible.’ Yes.”")
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;; todo: make some tougher tests, it gets flaky with edge cases
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(check-equal? (nonbreaking-last-space '(p "Hi there")) '(p "Hi " "there")) ; nbsp in between last two words
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(check-equal? (nonbreaking-last-space '(p "Hi there") #:nbsp "Ø") '(p "HiØ" "there")) ; but let's make it visible
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(check-equal? (nonbreaking-last-space '(p "Hi there") #:nbsp "_up_") '(p "Hi_up_" "there"))
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(check-equal? (nonbreaking-last-space '(p "Hi there") #:nbsp "_up_" #:minimum-word-length 3)
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'(p "Hi " "there"))
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(check-equal? (nonbreaking-last-space '(p "Hi here" (em "ho there")) #:nbsp "Ø") '(p "Hi here" (em "hoØ" "there")))
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(check-equal? (wrap-hanging-quotes '(p "\"Hi\" there")) '(p (dquo "“" "Hi\" there")))
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(check-equal? (wrap-hanging-quotes '(p "'Hi' there")) '(p (squo "‘" "Hi' there")))
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(check-equal? (wrap-hanging-quotes '(p "'Hi' there") #:single-prepend '(foo ((bar "ino"))))
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'(p (foo ((bar "ino")) "‘" "Hi' there")))
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;; make sure txexpr without elements passes through unscathed
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(check-equal? (wrap-hanging-quotes '(div ((style "height:2em")))) '(div ((style "height:2em"))))
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(check-equal? (detect-linebreaks '("foo" "\n" "bar")) '("foo" (br) "bar"))
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(check-equal? (detect-linebreaks '("\n" "foo" "\n" "bar" "\n")) '("\n" "foo" (br) "bar" "\n"))
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(check-equal? (detect-linebreaks '((p "foo") "\n" (p "bar"))) '((p "foo") (p "bar")))
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(check-equal? (detect-linebreaks '("foo" "\n" (p "bar"))) '("foo" (p "bar")))
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(check-equal? (detect-linebreaks '("foo" "moo" "bar")) '("foo" "moo" "bar"))
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(check-equal? (detect-linebreaks '("foo" "moo" "bar") #:insert "moo") '("foo" "moo" "bar"))
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(check-equal? (detect-linebreaks '("foo" "\n\n" "bar")) '("foo" "\n\n" "bar"))
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(check-equal? (detect-paragraphs '("First para" "\n\n" "Second para"))
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'((p "First para") (p "Second para")))
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(check-equal? (detect-paragraphs '("First para" "\n\n" "Second para" "\n" "Second line"))
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'((p "First para") (p "Second para" (br) "Second line")))
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(check-equal? (detect-paragraphs '("First para" "\n\n" (div "Second block")))
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'((p "First para") (div "Second block")))
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(check-equal? (detect-paragraphs '((div "First block") "\n\n" (div "Second block")))
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'((div "First block") (div "Second block")))
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(check-equal? (detect-paragraphs '("First para" "\n\n" "Second para") #:tag 'ns:p)
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'((ns:p "First para") (ns:p "Second para")))
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(check-equal? (detect-paragraphs '("First para" "\n\n" "Second para" "\n" "Second line")
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#:linebreak-proc (λ(x) (detect-linebreaks x #:insert '(newline))))
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'((p "First para") (p "Second para" (newline) "Second line")))
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(check-equal? (detect-paragraphs '("foo" "\n\n" (div "bar") (div "zam")))
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'((p "foo") (div "bar") (div "zam")))
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(check-equal? (detect-paragraphs '("foo" "\n\n" (div "bar") "\n\n" (div "zam")))
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'((p "foo") (div "bar") (div "zam")))
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(check-equal? (detect-paragraphs '("foo")) '("foo"))
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(check-equal? (detect-paragraphs '("foo") #:force? #t) '((p "foo")))
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(check-equal? (detect-paragraphs '((div "foo"))) '((div "foo")))
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(check-equal? (detect-paragraphs '((div "foo")) #:force? #t) '((div "foo")))
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(check-equal? (detect-paragraphs '("foo" "\n\n" (div "bar"))) '((p "foo") (div "bar")))
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(check-equal? (detect-paragraphs '("foo" (div "bar"))) '((p "foo") (div "bar")))
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(check-equal? (detect-paragraphs '("foo" (div "bar")) #:force? #t) '((p "foo") (div "bar")))
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(check-equal? (detect-paragraphs '("foo" (div "bar") "zam")) '((p "foo") (div "bar") (p "zam")))
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(check-equal? (detect-paragraphs '("foo" (span "zing") (div "bar") "zam")) '((p "foo" (span "zing")) (div "bar") (p "zam")))
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(check-equal? (detect-paragraphs '("foo" (span "zing") (div "bar") "zam") #:force? #t) '((p "foo" (span "zing")) (div "bar") (p "zam")))
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(check-equal? (merge-newlines '(p "\n" "foo" "\n" "\n" "bar" (em "\n" "\n" "\n")))
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'(p "\n" "foo" "\n\n" "bar" (em "\n\n\n")))
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(check-true (whitespace? " "))
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(check-false (whitespace? (~a #\u00A0)))
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(check-true (whitespace/nbsp? (~a #\u00A0)))
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(check-true (whitespace/nbsp? (vector (~a #\u00A0))))
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(check-false (whitespace? (format " ~a " #\u00A0)))
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(check-true (whitespace/nbsp? (format " ~a " #\u00A0)))
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