/usr/share/gnucash/scm/string.scm is in gnucash-common 1:2.6.15-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 | ;; 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 of
;; the License, 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 program; if not, contact:
;;
;; Free Software Foundation Voice: +1-617-542-5942
;; 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652
;; Boston, MA 02110-1301, USA gnu@gnu.org
(use-modules (srfi srfi-13))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:string-rcontains
;;
;; Similar to string-contains, but searches from the right.
;;
;; Example: (gnc:string-rcontains "foobarfoobarf" "bar")
;; returns 9.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:string-rcontains s1 s2)
(let ((s2len (string-length s2)))
(let loop ((i (string-contains s1 s2))
(retval #f))
(if i
(loop (string-contains s1 s2 (+ i s2len)) i)
retval))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:substring-count
;;
;; Similar to string-count, but searches for a substring rather
;; than a single character.
;;
;; Example: (gnc:substring-count "foobarfoobarfoo" "bar")
;; returns 2.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:substring-count s1 s2)
(let ((s2len (string-length s2)))
(let loop ((i (string-contains s1 s2))
(retval 0))
(if i
(loop (string-contains s1 s2 (+ i s2len)) (+ 1 retval))
retval))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:substring-split
;;
;; Similar to string-split, but the delimiter is a string
;; rather than a single character.
;;
;; Example: (gnc:substring-split "foobarfoobarf" "bar") returns
;; ("foo" "foo" "f").
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:substring-split s1 s2)
(let ((i (string-contains s1 s2)))
(if i
(cons (substring s1 0 i)
(gnc:substring-split (substring s1 (+ i (string-length s2))) s2))
(list s1))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:substring-replace
;;
;; Search for all occurrences in string "s1" of string "s2" and
;; replace them with string "s3".
;;
;; Example: (gnc:substring-replace "foobarfoobar" "bar" "xyz")
;; returns "fooxyzfooxyz".
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:substring-replace s1 s2 s3)
(let ((s2len (string-length s2)))
(let loop ((start1 0)
(i (string-contains s1 s2)))
(if i
(string-append (substring s1 start1 i)
s3
(loop (+ i s2len) (string-contains s1 s2 (+ i s2len))))
(substring s1 start1)))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:substring-replace-from-to
;; same as gnc:substring-replace extended by:
;; start: from which occurrance onwards the replacement shall start
;; end-after: max. number times the replacement should executed
;;
;; Example: (gnc:substring-replace-from-to "foobarfoobarfoobar" "bar" "xyz" 2 2)
;; returns "foobarfooxyzfoobar".
;;
;; start=1 and end-after<=0 will call gnc:substring-replace (replace all)
;; start>1 and end-after<=0 will the replace from "start" until end of file
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:substring-replace-from-to s1 s2 s3 start end-after)
(let (
(s2len (string-length s2))
)
;; if start<=0 and end<=0 => don't do anything
(if (and
(<= start 0)
(<= end-after 0)
)
s1
)
;; else
(begin
;; normalize start
(if (= start 0)
(set! start 1)
)
;; start=1 and end<=0 => replace all
;; call gnc:substring-replace for that
(if (and (= start 1) (<= end-after 0))
(gnc:substring-replace s1 s2 s3)
;; else
(begin
(let loop (
(start1 0)
(i (string-contains s1 s2))
)
(if i
(begin
(set! start (- start 1))
(if (or
(> start 0)
(and (> end-after 0)
(<= (+ end-after start) 0)
)
)
(string-append
(substring s1 start1 i)
s2 ;; means: do not change anything
(loop (+ i s2len) (string-contains s1 s2 (+ i s2len)))
)
(string-append
(substring s1 start1 i)
s3
(loop (+ i s2len) (string-contains s1 s2 (+ i s2len)))
)
)
)
;; else
(substring s1 start1)
)
)
)
)
)
)
)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:string-replace-char
;;
;; Replaces all occurrences in string "s" of character "old"
;; with character "new".
;;
;; Example: (gnc:string-replace-char "foo" #\o #\c) returns
;; "fcc".
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:string-replace-char s old new)
(string-map (lambda (c) (if (char=? c old) new c)) s))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:string-delete-chars
;;
;; Filter string "s", retaining only those characters that do not
;; appear in string "chars".
;;
;; Example: (gnc:string-delete-chars "abcd" "cb") returns "ad".
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:string-delete-chars s chars)
(string-delete s (lambda (c) (string-index chars c))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:list-display
;;
;; Run the display procedure on each element in a list.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:list-display lst)
(for-each (lambda (elt) (display elt)) lst))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; gnc:list-display-to-string
;;
;; Return a string containing the output that would be generated
;; by running the display procedure on each element in a list.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (gnc:list-display-to-string lst)
(with-output-to-string (lambda () (gnc:list-display lst))))
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