1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 2005--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
5 ;;;; LilyPond is free software: you can redistribute it and/or modify
6 ;;;; it under the terms of the GNU General Public License as published by
7 ;;;; the Free Software Foundation, either version 3 of the License, or
8 ;;;; (at your option) any later version.
10 ;;;; LilyPond is distributed in the hope that it will be useful,
11 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ;;;; GNU General Public License for more details.
15 ;;;; You should have received a copy of the GNU General Public License
16 ;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
19 (define cache-hash-tab (make-hash-table 11))
20 (define-public (cached-file-contents filename)
22 ((contents (hash-ref cache-hash-tab filename #f)))
24 (if (not (string? contents))
26 (set! contents (ly:gulp-file filename))
27 (hash-set! cache-hash-tab filename contents)))