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