Use bold-italic font rather than italic for bold-script when STIX fonts are used. Resolves issue #310.

Author: dpvc

unpacked/jax/output/HTML-CSS/fonts/STIX/fontdata.js

@@ -30,6 +30,7 @@
   var GENERAL = "STIXGeneral",
       BOLD    = "STIXGeneral-bold",
       ITALIC  = "STIXGeneral-italic",
+      BITALIC = "STIXGeneral-bold-italic",
       NONUNI  = "STIXNonUnicode",
       NONUNII = "STIXNonUnicode-italic",
       SIZE1   = "STIXSizeOneSym",
@@ -71,22 +72,22 @@
                    remap: {0x2205: [0x2205,"-STIX-variant"]}}, // \emptyset
         "bold":   {fonts: [BOLD,"STIXNonUnicode-bold","STIXSizeOneSym-bold"], bold:true},
         "italic": {fonts: [ITALIC,NONUNII,GENERAL,NONUNI,SIZE1], italic:true},
-        "bold-italic": {fonts: ["STIXGeneral-bold-italic","STIXNonUnicode-bold-italic"], bold:true, italic:true},
+        "bold-italic": {fonts: [BITALIC,"STIXNonUnicode-bold-italic"], bold:true, italic:true},
         "double-struck": {offsetA: 0x1D538, offsetN: 0x1D7D8,
                    remap: {0x1D53A: 0x2102, 0x1D53F: 0x210D, 0x1D545: 0x2115, 0x1D547: 0x2119,
                            0x1D548: 0x211A, 0x1D549: 0x211D, 0x1D551: 0x2124}},
         "fraktur": {offsetA: 0x1D504,
                    remap: {0x1D506: 0x212D, 0x1D50B: 0x210C, 0x1D50C: 0x2111, 0x1D515: 0x211C, 0x1D51D: 0x2128}},
         "bold-fraktur": {fonts: [BOLD], offsetA: 0x1D56C, bold:true},
-        "script": {fonts: [ITALIC], offsetA: 0x1D49C,
+        "script": {fonts: [ITALIC], offsetA: 0x1D49C, italic:true,
                    remap: {0x1D49D: 0x212C, 0x1D4A0: 0x2130, 0x1D4A1: 0x2131, 0x1D4A3: 0x210B,
                            0x1D4A4: 0x2110, 0x1D4A7: 0x2112, 0x1D4A8: 0x2133, 0x1D4AD: 0x211B,
                            0x1D4BA: 0x212F, 0x1D4BC: 0x210A, 0x1D4C4: 0x2134}},
-        "bold-script": {fonts: [ITALIC], offsetA: 0x1D4D0, bold:true},
+        "bold-script": {fonts: [BITALIC], offsetA: 0x1D4D0, bold:true, italic:true},
         "sans-serif": {offsetA: 0x1D5A0, offsetN: 0x1D7E2, offsetG: 0xE17D},
         "bold-sans-serif": {offsetA: 0x1D5D4, offsetG: 0x1D756, offsetN: 0x1D7EC, bold:true},
         "sans-serif-italic": {fonts: [ITALIC,NONUNII], offsetA: 0x1D608, offsetN: 0xE1B4, offsetG: 0xE1BF, italic:true},
-        "sans-serif-bold-italic": {fonts: ["STIXGeneral-bold-italic","STIXNonUnicode-bold-italic"], offsetA: 0x1D63C, offsetN: 0xE1F6, offsetG: 0x1D790, bold:true, italic:true},
+        "sans-serif-bold-italic": {fonts: [BITALIC,"STIXNonUnicode-bold-italic"], offsetA: 0x1D63C, offsetN: 0xE1F6, offsetG: 0x1D790, bold:true, italic:true},
         "monospace": {offsetA: 0x1D670, offsetN: 0x1D7F6},
         "-STIX-variant": {fonts:["STIXVariants",NONUNI,GENERAL],
                    remap: {0x2A87: 0xE010, 0x2A88: 0xE00F, 0x2270: 0xE011, 0x2271: 0xE00E,