60 lines
2.4 KiB
Scheme
60 lines
2.4 KiB
Scheme
;;; These defs are things for characters *not* in SRFIs 13 & 14.
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;;; It includes some R5RS defs that are not correct in S48 in a Latin-1 world.
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(define-interface char-predicates-interface
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(export
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((char-lower-case? ; R5RS
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char-upper-case? ; R5RS
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char-alphabetic? ; R5RS
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char-numeric? ; R5RS
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char-whitespace? ; R5RS
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char-alphanumeric? ; For compatibility w/old code
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char-letter? ; Scsh
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char-digit?
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char-letter+digit?
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char-graphic?
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char-printing?
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char-blank?
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char-iso-control?
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char-punctuation?
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char-symbol?
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char-hex-digit?
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char-ascii?) (proc (:char) :boolean))))
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(define-structure char-predicates-lib char-predicates-interface
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(open error-package ; ERROR
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scsh-utilities ; DEPRECATED-PROC
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srfi-14
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scheme)
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(begin
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;; These are R5RS. We can't use the native S48 ones, because they
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;; don't handle full Latin-1.
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(define (char-lower-case? c) (char-set-contains? char-set:lower-case c))
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(define (char-upper-case? c) (char-set-contains? char-set:upper-case c))
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(define (char-alphabetic? c) (char-set-contains? char-set:letter c))
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(define (char-numeric? c) (char-set-contains? char-set:digit c))
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(define (char-whitespace? c) (char-set-contains? char-set:whitespace c))
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;; These are scsh extensions to R5RS.
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(define (char-letter? c) (char-set-contains? char-set:letter c))
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(define (char-digit? c) (char-set-contains? char-set:digit c))
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(define (char-letter+digit? c) (char-set-contains? char-set:letter+digit c))
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(define (char-graphic? c) (char-set-contains? char-set:graphic c))
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(define (char-printing? c) (char-set-contains? char-set:printing c))
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(define (char-blank? c) (char-set-contains? char-set:blank c))
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(define (char-iso-control? c) (char-set-contains? char-set:iso-control c))
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(define (char-punctuation? c) (char-set-contains? char-set:punctuation c))
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(define (char-symbol? c) (char-set-contains? char-set:symbol c))
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(define (char-hex-digit? c) (char-set-contains? char-set:hex-digit c))
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(define (char-ascii? c) (char-set-contains? char-set:ascii c))
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;; Obsolete scsh.
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(define char-alphanumeric?
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(deprecated-proc char-letter+digit? 'char-alphanumeric?
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"Use CHAR-LETTER+DIGIT? instead.")))
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(optimize auto-integrate))
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