X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftext-interface.cc;h=12e2e36e3e169c1a728ef3edc37cac7290ce13b0;hb=37ca1f80bf5401accd17056938f4f7b2c147ddb2;hp=de773b62ca50ed4bc301644cdd6e47e0da7845a9;hpb=92e8f758e29427d28c413d1998c895b9c61932fd;p=lilypond.git

diff --git a/lily/text-interface.cc b/lily/text-interface.cc
index de773b62ca..12e2e36e3e 100644
--- a/lily/text-interface.cc
+++ b/lily/text-interface.cc
@@ -19,6 +19,37 @@
 #include "output-def.hh"
 #include "modified-font-metric.hh"
 
+static void
+replace_whitespace (string *str)
+{
+  vsize i = 0;
+  vsize n = str->size ();
+
+  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] = ' ';
+
+      i += char_len;
+    }
+}
+
 MAKE_SCHEME_CALLBACK (Text_interface, interpret_string, 3);
 SCM
 Text_interface::interpret_string (SCM layout_smob,
@@ -31,6 +62,8 @@ Text_interface::interpret_string (SCM layout_smob,
   string str = ly_scm2string (markup);
   Output_def *layout = unsmob_output_def (layout_smob);
   Font_metric *fm = select_encoded_font (layout, props);
+
+  replace_whitespace (&str);
   return fm->word_stencil (str).smobbed_copy ();
 }
 
@@ -104,13 +137,15 @@ Text_interface::is_markup_list (SCM x)
 
 
 ADD_INTERFACE (Text_interface,
-	       "A scheme markup text, see @usermanref{Text markup} and "
-	       "@usermanref{New markup command definition}. "
-	       "\n\n"
-	       "There are two important commands: ly:text-interface::print, which is a "
-	       "grob callback, and ly:text-interface::interpret-markup ",
-
-	       /* props */
+	       "A Scheme markup text, see @ruser{Formatting text} and"
+	       " @ruser{New markup command definition}.\n"
+	       "\n"
+	       "There are two important commands:"
+	       " @code{ly:text-interface::print}, which is a"
+	       " grob callback, and"
+	       " @code{ly:text-interface::interpret-markup}.",
+
+	       /* properties */
 	       "baseline-skip "
 	       "text "
 	       "word-space "