update

src/Plugins/Freetype/rubber_unicode_font.cpp

@@ -17,6 +17,7 @@
 #include "hashmap.hpp"
 #include "lolly/data/numeral.hpp"
 #include "observer.hpp"
+#include "resource.hpp"
 #include "string.hpp"
 #include "translator.hpp"
 #include "unicode_font.hpp"
@@ -46,7 +47,7 @@ struct rubber_unicode_font_rep : font_rep {
   rubber_unicode_font_rep (string name, font base, tt_face face= nullptr);
   font get_font (int nr);
   int  search_font_sub (string s, string& rew);
-  bool search_font_sub_bis (string s, string& rew, int& nr);
+  int  search_font_sub_opentype (string s, string& rew);
   int  search_font_cached (string s, string& rew);
   font search_font (string& s);
 
@@ -88,11 +89,16 @@ rubber_unicode_font_rep::rubber_unicode_font_rep (string name, font base2,
     //<< ((double) (ex->y2-ex->y1)) / base->yx << LF;
     if ((((double) (ex->y2 - ex->y1)) / base->yx) >= 1.55) big_sums= true;
   }
+
   for (int i= 0; i < 5; i++) {
     initialized << false;
     subfn << base;
   }
 
+  // when opentype rubber failed
+  initialized << true;
+  subfn << font_rep::make_rubber_font (base);
+
   if (base->math_type == MATH_TYPE_OPENTYPE) {
     cout << "rubber for unicode font with opentype: " << base->res_name << LF;
     big_flag= true;
@@ -146,14 +152,12 @@ parse_variant (string s, string& r) {
   return var;
 }
 
-bool
-rubber_unicode_font_rep::search_font_sub_bis (string s, string& rew, int& nr) {
-  // look up opentype math table
+int
+rubber_unicode_font_rep::search_font_sub_opentype (string s, string& rew) {
   string r;
   int    var= 0;
   bool   ver= true; // verizontal or vertical, default is vertical
   rew       = s;
-  nr        = 0;
 
   // large,big,wide
   // left,right,mid?
@@ -186,7 +190,7 @@ rubber_unicode_font_rep::search_font_sub_bis (string s, string& rew, int& nr) {
 
   unsigned int glyphID= ft_get_char_index (math_face->ft_face, u);
 
-  cout << "search_font_sub_bis for " << u << " -> " << glyphID << LF;
+  cout << "search_font_sub_opentype for " << u << " -> " << glyphID << LF;
 
   auto variant= ver ? math_face->math_table->ver_glyph_variants
                     : math_face->math_table->hor_glyph_variants;
@@ -198,13 +202,13 @@ rubber_unicode_font_rep::search_font_sub_bis (string s, string& rew, int& nr) {
       auto res= v[var];
       // use <@XXXX> for native glyph id
       rew= "<@" * as_hexadecimal (res, 4) * ">";
-      nr = 0;
       cout << "Variant for " << uu << " -> " << glyphID << " -> " << rew << LF;
-      return true;
+      return 0;
     }
   }
   cout << "No variant for " << uu << " -> " << glyphID << LF;
-  return false;
+  int nr = search_font_sub (s, rew);
+  return nr == 0 ? 5 : nr;
 }
 
 int
@@ -280,9 +284,8 @@ rubber_unicode_font_rep::search_font_cached (string s, string& rew) {
     return mapper[s];
   }
   int nr= 0;
-  if (!is_nil (math_face) && !is_nil (math_face->math_table) &&
-      search_font_sub_bis (s, rew, nr)) {
-    // we found it in opentype math table
+  if (!is_nil (math_face) && !is_nil (math_face->math_table)) {
+    nr = search_font_sub_opentype (s, rew);
   }
   else {
     nr= search_font_sub (s, rew);

test.tmu

@@ -0,0 +1,18 @@
+<TMU|<tuple|1.0.5|1.2.9.5>>
+
+<style|<tuple|generic|chinese>>
+
+<\body>
+  <\equation*>
+    <big|oiint><big|oint><big|idotsint>
+  </equation*>
+</body>
+
+<\initial>
+  <\collection>
+    <associate|font|Asana Math>
+    <associate|font-family|rm>
+    <associate|page-medium|paper>
+    <associate|page-screen-margin|false>
+  </collection>
+</initial>