Imported Upstream version 2.14.2

[lilypond.git] / lily / text-interface.cc

diff --git a/lily/text-interface.cc b/lily/text-interface.cc
index 8b55618521af2ae9bc9bc5df032a1a6cfec1459b..983902f6af2079b97e586e2d6ab7eeeb752c225c 100644 (file)
--- a/lily/text-interface.cc
+++ b/lily/text-interface.cc
@@ -1,23 +1,34 @@
 /*
-  text-interface.cc -- implement Text_interface
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
-
-  (c) 1998--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1998--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
+
+  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/>.
 */
 
 #include "text-interface.hh"
 
-
-#include "main.hh"
 #include "config.hh"
-#include "pango-font.hh"
-#include "warn.hh"
-#include "grob.hh"
 #include "font-interface.hh"
-#include "output-def.hh"
+#include "grob.hh"
+#include "main.hh"
+#include "misc.hh"
 #include "modified-font-metric.hh"
+#include "output-def.hh"
+#include "pango-font.hh"
+#include "warn.hh"
 
 static void
 replace_whitespace (string *str)
@@ -27,24 +38,13 @@ replace_whitespace (string *str)
 
   while (i < n)
     {
-      vsize char_len = 1;
       char cur = (*str)[i];
-      
-      // U+10000 - U+10FFFF
-      if ((cur & 0x11110000) == 0x11110000)
-       char_len = 4;
-      // U+0800 - U+FFFF
-      else if ((cur & 0x11100000) == 0x11100000)
-       char_len = 3;
-      // U+0080 - U+07FF
-      else if ((cur & 0x11000000) == 0x11000000)
-       char_len = 2;
-      else if (cur & 0x10000000)
-       programming_error ("invalid utf-8 string");
-      else
-       // avoid the locale-dependent isspace
-       if (cur == '\n' || cur == '\t' || cur == '\v')
-         (*str)[i] = ' ';
+
+      // avoid the locale-dependent isspace
+      if (cur == '\n' || cur == '\t' || cur == '\v')
+       (*str)[i] = ' ';
+
+      vsize char_len = utf8_char_len (cur);
 
       i += char_len;
     }
@@ -64,7 +64,19 @@ Text_interface::interpret_string (SCM layout_smob,
   Font_metric *fm = select_encoded_font (layout, props);
 
   replace_whitespace (&str);
-  return fm->word_stencil (str).smobbed_copy ();
+
+  /*
+    We want to filter strings with a music font that pass through
+    the text interface.  Here the font encoding is checked to see
+    if it matches one of the music font encodings.  --pmccarty
+  */
+  SCM encoding = ly_chain_assoc_get (ly_symbol2scm ("font-encoding"),
+                                    props,
+                                    SCM_BOOL_F);
+  SCM music_encodings = ly_lily_module_constant ("all-music-font-encodings");
+
+  bool is_music = (scm_memq (encoding, music_encodings) != SCM_BOOL_F);
+  return fm->text_stencil (layout, str, is_music).smobbed_copy ();
 }
 
 MAKE_SCHEME_CALLBACK_WITH_OPTARGS (Text_interface, interpret_markup, 3, 0,
@@ -138,7 +150,7 @@ Text_interface::is_markup_list (SCM x)
 
 ADD_INTERFACE (Text_interface,
               "A Scheme markup text, see @ruser{Formatting text} and"
-              " @ruser{New markup command definition}.\n"
+              " @rextend{New markup command definition}.\n"
               "\n"
               "There are two important commands:"
               " @code{ly:text-interface::print}, which is a"