1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
;;; srfi-14.scm --- Character-set Library
;; Copyright (C) 2001, 2002 Free Software Foundation, Inc.
;;
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 2, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this software; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
;; Boston, MA 02111-1307 USA
;;
;; As a special exception, the Free Software Foundation gives permission
;; for additional uses of the text contained in its release of GUILE.
;;
;; The exception is that, if you link the GUILE library with other files
;; to produce an executable, this does not by itself cause the
;; resulting executable to be covered by the GNU General Public License.
;; Your use of that executable is in no way restricted on account of
;; linking the GUILE library code into it.
;;
;; This exception does not however invalidate any other reasons why
;; the executable file might be covered by the GNU General Public License.
;;
;; This exception applies only to the code released by the
;; Free Software Foundation under the name GUILE. If you copy
;; code from other Free Software Foundation releases into a copy of
;; GUILE, as the General Public License permits, the exception does
;; not apply to the code that you add in this way. To avoid misleading
;; anyone as to the status of such modified files, you must delete
;; this exception notice from them.
;;
;; If you write modifications of your own for GUILE, it is your choice
;; whether to permit this exception to apply to your modifications.
;; If you do not wish that, delete this exception notice.
;;; Commentary:
;; This module is fully documented in the Guile Reference Manual.
;;; Code:
(define-module (srfi srfi-14)
:export (
;;; General procedures
char-set?
char-set=
char-set<=
char-set-hash
;;; Iterating over character sets
char-set-cursor
char-set-ref
char-set-cursor-next
end-of-char-set?
char-set-fold
char-set-unfold char-set-unfold!
char-set-for-each
char-set-map
;;; Creating character sets
char-set-copy
char-set
list->char-set list->char-set!
string->char-set string->char-set!
char-set-filter char-set-filter!
ucs-range->char-set ucs-range->char-set!
->char-set
;;; Querying character sets
char-set-size
char-set-count
char-set->list
char-set->string
char-set-contains?
char-set-every
char-set-any
;;; Character set algebra
char-set-adjoin char-set-adjoin!
char-set-delete char-set-delete!
char-set-complement
char-set-union
char-set-intersection
char-set-difference
char-set-xor
char-set-diff+intersection
char-set-complement!
char-set-union!
char-set-intersection!
char-set-difference!
char-set-xor!
char-set-diff+intersection!
;;; Standard character sets
char-set:lower-case
char-set:upper-case
char-set:title-case
char-set:letter
char-set:digit
char-set:letter+digit
char-set:graphic
char-set:printing
char-set:whitespace
char-set:iso-control
char-set:punctuation
char-set:symbol
char-set:hex-digit
char-set:blank
char-set:ascii
char-set:empty
char-set:full
))
(cond-expand-provide (current-module) '(srfi-14))
(load-extension "libguile-srfi-srfi-13-14" "scm_init_srfi_14")
(define (->char-set x)
(cond
((string? x) (string->char-set x))
((char? x) (char-set x))
((char-set? x) x)
(else (error "invalid argument to `->char-set'"))))
(define char-set:full (ucs-range->char-set 0 256))
(define char-set:lower-case (char-set-filter char-lower-case? char-set:full))
(define char-set:upper-case (char-set-filter char-upper-case? char-set:full))
(define char-set:title-case (char-set))
(define char-set:letter (char-set-union char-set:lower-case
char-set:upper-case))
(define char-set:digit (string->char-set "0123456789"))
(define char-set:letter+digit
(char-set-union char-set:letter char-set:digit))
(define char-set:punctuation (string->char-set "!\"#%&'()*,-./:;?@[\\]_{}"))
(define char-set:symbol (string->char-set "$+<=>^`|~"))
(define char-set:whitespace (char-set #\space #\newline #\tab #\cr #\vt #\np))
(define char-set:blank (char-set #\space #\tab))
(define char-set:graphic
(char-set-union char-set:letter+digit char-set:punctuation char-set:symbol))
(define char-set:printing
(char-set-union char-set:graphic char-set:whitespace))
(define char-set:iso-control
(char-set-adjoin
(char-set-filter (lambda (ch) (< (char->integer ch) 31)) char-set:full)
(integer->char 127)))
(define char-set:hex-digit (string->char-set "0123456789abcdefABCDEF"))
(define char-set:ascii
(char-set-filter (lambda (ch) (< (char->integer ch) 128)) char-set:full))
(define char-set:empty (char-set))
;;; srfi-14.scm ends here
|
