New alist to replace special characters.

scm/text.scm

+;;;; This file is part of LilyPond, the GNU music typesetter.
+;;;;
+;;;; Copyright (C) 2011 Bertrand Bordage <bordage.bertrand@gmail.com>
+;;;;
+;;;; LilyPond 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 3 of the License, or
+;;;; (at your option) any later version.
+;;;;
+;;;; LilyPond 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 LilyPond.  If not, see <http://www.gnu.org/licenses/>.
+
+
+(define-public default-string-replacement-alist
+  '(;; Whitespaces
+    ("\t" . " ")
+    ("\n" . " ")
+    ("\v" . " ")))
+
+(define-public (internal-add-text-replacements props alist)
+  (let* ((dummy-replacements (chain-assoc-get 'replacement-alist props '()))
+         (new-replacements
+           (append dummy-replacements alist)))
+    (prepend-alist-chain 'replacement-alist new-replacements props)))