[type42] Support `CharStrings' entry format as created by LilyPond.

* src/type42/t42parse.c (t42_parse_charstrings): Handle entries
having the format

  (foo) cvn 12345 def

ChangeLog

@@ -1,3 +1,12 @@
+2016-05-30  Werner Lemberg  <wl@gnu.org>
+
+	[type42] Support `CharStrings' entry format as created by LilyPond.
+
+	* src/type42/t42parse.c (t42_parse_charstrings): Handle entries
+	having the format
+
+	  (foo) cvn 12345 def
+
 2016-05-28  Werner Lemberg  <wl@gnu.org>
 
 	* src/autofit/afranges.c: Remove `UL' postfix from hex numbers.

src/type42/t42parse.c

@@ -899,8 +899,13 @@
 
     for (;;)
     {
-      /* The format is simple:                   */
-      /*   `/glyphname' + index [+ def]          */
+      /* We support two formats.                     */
+      /*                                             */
+      /*   `/glyphname' + index [+ `def']            */
+      /*   `(glyphname)' [+ `cvn'] + index [+ `def'] */
+      /*                                             */
+      /* The latter format gets created by the       */
+      /* LilyPond typesetting program.               */
 
       T1_Skip_Spaces( parser );
 
@@ -928,12 +933,13 @@
       if ( parser->root.error )
         return;
 
-      if ( *cur == '/' )
+      if ( *cur == '/' || *cur == '(' )
       {
         FT_UInt  len;
+        FT_Bool  have_literal = ( *cur == '(' );
 
 
-        if ( cur + 2 >= limit )
+        if ( cur + ( have_literal ? 3 : 2 ) >= limit )
         {
           FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
           error = FT_THROW( Invalid_File_Format );
@@ -942,6 +948,8 @@
 
         cur++;                              /* skip `/' */
         len = (FT_UInt)( parser->root.cursor - cur );
+        if ( have_literal )
+          len--;
 
         error = T1_Add_Table( name_table, n, cur, len + 1 );
         if ( error )
@@ -961,6 +969,9 @@
 
         T1_Skip_Spaces( parser );
 
+        if ( have_literal )
+          T1_Skip_PS_Token( parser );
+
         cur = parser->root.cursor;
 
         (void)T1_ToInt( parser );