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#lang racket/base
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(require (for-syntax racket/base syntax/strip-context)
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txexpr/base
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sugar/define
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racket/contract
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(only-in xml xexpr/c)
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(prefix-in core: hyphenate/private/core))
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(provide build-main)
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;; An exception-word is a string of word characters or hyphens.
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(define (exception-word? x)
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(and (string? x) (regexp-match #px"^(\\p{L}|-)+$" x) #t))
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(define (exception-words? xs)
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(and (list? xs) (andmap exception-word? xs)))
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(define hyphenate/c
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((xexpr?) ((or/c char? string?)
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#:exceptions exception-words?
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#:min-length (or/c integer? #f)
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#:omit-word (string? . -> . any/c)
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#:omit-string (string? . -> . any/c)
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#:omit-txexpr (txexpr? . -> . any/c)
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#:min-left-length (or/c (and/c integer? positive?) #f)
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#:min-right-length (or/c (and/c integer? positive?) #f)) . ->* . xexpr/c))
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(define (make-hyphenate-function patterns exceptions)
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(make-keyword-procedure
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;; put caches here so they can persist across successive invocations of the function.
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;; but remain distinct between instantiations of this module (say, us vs fr)
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;; pass them as arguments to the core:hyphenate func
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(let ([word-cache exceptions] ; preload exceptions
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[pattern-cache patterns])
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(λ (kws kw-args . rest)
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(keyword-apply core:hyphenate kws kw-args word-cache pattern-cache rest)))))
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(define unhyphenate
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(make-keyword-procedure
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(λ (kws kw-args . rest)
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(keyword-apply core:unhyphenate kws kw-args rest))))
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(define unhyphenate/c
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((xexpr/c) ((or/c char? string?)
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#:omit-word (string? . -> . any/c)
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#:omit-string (string? . -> . any/c)
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#:omit-txexpr (txexpr? . -> . any/c)) . ->* . xexpr/c))
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(define-syntax (build-main stx)
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(syntax-case stx ()
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[(_ dir)
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(with-syntax ([PATTERNS-PATH (path->string (build-path (symbol->string(syntax->datum #'dir)) "patterns.rkt"))]
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[EXCEPTIONS-PATH (path->string (build-path (symbol->string (syntax->datum #'dir)) "exceptions.rkt"))]
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[PATTERNS-ID 'patterns]
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[EXCEPTIONS-ID 'exceptions])
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#'(begin
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(require PATTERNS-PATH EXCEPTIONS-PATH)
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(define+provide+safe hyphenate
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hyphenate/c
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(make-hyphenate-function PATTERNS-ID EXCEPTIONS-ID))
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(provide+safe [unhyphenate unhyphenate/c])))]))
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