Move symbolic font glyphs to private use area if they don't have unicode mappings (issue 2594, bug 789074, bug 865644)

src/core/fonts.js

@@ -879,7 +879,7 @@ var Font = (function FontClosure() {
   }
 
   /**
-   * Helper function for |adjustMapping|.
+   * Helper function for `adjustMapping`.
    * @return {boolean}
    */
   function isProblematicUnicodeLocation(code) {
@@ -922,7 +922,9 @@ var Font = (function FontClosure() {
       var fontCharCode = originalCharCode;
       // First try to map the value to a unicode position if a non identity map
       // was created.
+      var hasUnicodeValue = false;
       if (!isIdentityUnicode && toUnicode.has(originalCharCode)) {
+        hasUnicodeValue = true;
         var unicode = toUnicode.get(fontCharCode);
         // TODO: Try to map ligatures to the correct spot.
         if (unicode.length === 1) {
@@ -937,7 +939,7 @@ var Font = (function FontClosure() {
       // with firefox and thuluthfont).
       if ((usedFontCharCodes[fontCharCode] !== undefined ||
            isProblematicUnicodeLocation(fontCharCode) ||
-           (isSymbolic && isIdentityUnicode)) &&
+           (isSymbolic && !hasUnicodeValue)) &&
           nextAvailableFontCharCode <= PRIVATE_USE_OFFSET_END) { // Room left.
         // Loop to try and find a free spot in the private use area.
         do {

src/core/glyphlist.js

@@ -1480,6 +1480,7 @@ var getGlyphsUnicode = getLookupTableFactory(function (t) {
   t['controlHT'] = 0x0009;
   t['controlLF'] = 0x000A;
   t['controlNAK'] = 0x0015;
+  t['controlNULL'] = 0x0000; // Glyph is missing from Adobe's original list.
   t['controlRS'] = 0x001E;
   t['controlSI'] = 0x000F;
   t['controlSO'] = 0x000E;
@@ -4231,6 +4232,124 @@ var getGlyphsUnicode = getLookupTableFactory(function (t) {
   t['zuhiragana'] = 0x305A;
   t['zukatakana'] = 0x30BA;
   t['.notdef'] = 0x0000;
+
+  // TeX-specific glyph names.
+  t['angbracketleftbig'] = 0x2329;
+  t['angbracketleftBig'] = 0x2329;
+  t['angbracketleftbigg'] = 0x2329;
+  t['angbracketleftBigg'] = 0x2329;
+  t['angbracketrightBig'] = 0x232A;
+  t['angbracketrightbig'] = 0x232A;
+  t['angbracketrightBigg'] = 0x232A;
+  t['angbracketrightbigg'] = 0x232A;
+  t['arrowhookleft'] = 0x21AA;
+  t['arrowhookright'] = 0x21A9;
+  t['arrowlefttophalf'] = 0x21BC;
+  t['arrowleftbothalf'] = 0x21BD;
+  t['arrownortheast'] = 0x2197;
+  t['arrownorthwest'] = 0x2196;
+  t['arrowrighttophalf'] = 0x21C0;
+  t['arrowrightbothalf'] = 0x21C1;
+  t['arrowsoutheast'] = 0x2198;
+  t['arrowsouthwest'] = 0x2199;
+  t['backslashbig'] = 0x2216;
+  t['backslashBig'] = 0x2216;
+  t['backslashBigg'] = 0x2216;
+  t['backslashbigg'] = 0x2216;
+  t['bardbl'] = 0x2016;
+  t['bracehtipdownleft'] = 0xFE37;
+  t['bracehtipdownright'] = 0xFE37;
+  t['bracehtipupleft'] = 0xFE38;
+  t['bracehtipupright'] = 0xFE38;
+  t['braceleftBig'] = 0x007B;
+  t['braceleftbig'] = 0x007B;
+  t['braceleftbigg'] = 0x007B;
+  t['braceleftBigg'] = 0x007B;
+  t['bracerightBig'] = 0x007D;
+  t['bracerightbig'] = 0x007D;
+  t['bracerightbigg'] = 0x007D;
+  t['bracerightBigg'] = 0x007D;
+  t['bracketleftbig'] = 0x005B;
+  t['bracketleftBig'] = 0x005B;
+  t['bracketleftbigg'] = 0x005B;
+  t['bracketleftBigg'] = 0x005B;
+  t['bracketrightBig'] = 0x005D;
+  t['bracketrightbig'] = 0x005D;
+  t['bracketrightbigg'] = 0x005D;
+  t['bracketrightBigg'] = 0x005D;
+  t['ceilingleftbig'] = 0x2308;
+  t['ceilingleftBig'] = 0x2308;
+  t['ceilingleftBigg'] = 0x2308;
+  t['ceilingleftbigg'] = 0x2308;
+  t['ceilingrightbig'] = 0x2309;
+  t['ceilingrightBig'] = 0x2309;
+  t['ceilingrightbigg'] = 0x2309;
+  t['ceilingrightBigg'] = 0x2309;
+  t['circledotdisplay'] = 0x2299;
+  t['circledottext'] = 0x2299;
+  t['circlemultiplydisplay'] = 0x2297;
+  t['circlemultiplytext'] = 0x2297;
+  t['circleplusdisplay'] = 0x2295;
+  t['circleplustext'] = 0x2295;
+  t['contintegraldisplay'] = 0x222E;
+  t['contintegraltext'] = 0x222E;
+  t['coproductdisplay'] = 0x2210;
+  t['coproducttext'] = 0x2210;
+  t['floorleftBig'] = 0x230A;
+  t['floorleftbig'] = 0x230A;
+  t['floorleftbigg'] = 0x230A;
+  t['floorleftBigg'] = 0x230A;
+  t['floorrightbig'] = 0x230B;
+  t['floorrightBig'] = 0x230B;
+  t['floorrightBigg'] = 0x230B;
+  t['floorrightbigg'] = 0x230B;
+  t['hatwide'] = 0x0302;
+  t['hatwider'] = 0x0302;
+  t['hatwidest'] = 0x0302;
+  t['intercal'] = 0x1D40;
+  t['integraldisplay'] = 0x222B;
+  t['integraltext'] = 0x222B;
+  t['intersectiondisplay'] = 0x22C2;
+  t['intersectiontext'] = 0x22C2;
+  t['logicalanddisplay'] = 0x2227;
+  t['logicalandtext'] = 0x2227;
+  t['logicalordisplay'] = 0x2228;
+  t['logicalortext'] = 0x2228;
+  t['parenleftBig'] = 0x0028;
+  t['parenleftbig'] = 0x0028;
+  t['parenleftBigg'] = 0x0028;
+  t['parenleftbigg'] = 0x0028;
+  t['parenrightBig'] = 0x0029;
+  t['parenrightbig'] = 0x0029;
+  t['parenrightBigg'] = 0x0029;
+  t['parenrightbigg'] = 0x0029;
+  t['prime'] = 0x2032;
+  t['productdisplay'] = 0x220F;
+  t['producttext'] = 0x220F;
+  t['radicalbig'] = 0x221A;
+  t['radicalBig'] = 0x221A;
+  t['radicalBigg'] = 0x221A;
+  t['radicalbigg'] = 0x221A;
+  t['radicalbt'] = 0x221A;
+  t['radicaltp'] = 0x221A;
+  t['radicalvertex'] = 0x221A;
+  t['slashbig'] = 0x002F;
+  t['slashBig'] = 0x002F;
+  t['slashBigg'] = 0x002F;
+  t['slashbigg'] = 0x002F;
+  t['summationdisplay'] = 0x2211;
+  t['summationtext'] = 0x2211;
+  t['tildewide'] = 0x02DC;
+  t['tildewider'] = 0x02DC;
+  t['tildewidest'] = 0x02DC;
+  t['uniondisplay'] = 0x22C3;
+  t['unionmultidisplay'] = 0x228E;
+  t['unionmultitext'] = 0x228E;
+  t['unionsqdisplay'] = 0x2294;
+  t['unionsqtext'] = 0x2294;
+  t['uniontext'] = 0x22C3;
+  t['vextenddouble'] = 0x2225;
+  t['vextendsingle'] = 0x2223;
 });
 
 var getDingbatsGlyphsUnicode = getLookupTableFactory(function (t) {