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Add support for Type1C advanced charsets

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This commit is contained in:
Vivien Nicolas 2011-09-11 17:38:02 +02:00
parent ae0f5e6274
commit 95ca8ede85
3 changed files with 122 additions and 15 deletions
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35
fonts.js
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@ -2429,37 +2429,42 @@ var Type2CFF = (function() {
},
parseCharsets: function cff_parsecharsets(pos, length, strings) {
if (pos == 0) {
return ISOAdobeCharset;
} else if (pos == 1) {
return CFFExpertCharset;
} else if (pos == 2) {
return CFFExpertSubsetCharset;
}
var bytes = this.bytes;
var format = bytes[pos++];
var charset = ['.notdef'];
// subtract 1 for the .notdef glyph
length -= 1;
switch (format) {
case 0:
for (var i = 0; i < length; ++i) {
var id = bytes[pos++];
id = (id << 8) | bytes[pos++];
charset.push(strings[id]);
for (var i = 0; i < length; i++) {
var sid = (bytes[pos++] << 8) | bytes[pos++];
charset.push(strings[sid]);
}
break;
case 1:
while (charset.length <= length) {
var first = bytes[pos++];
first = (first << 8) | bytes[pos++];
var numLeft = bytes[pos++];
for (var i = 0; i <= numLeft; ++i)
charset.push(strings[first++]);
var sid = (bytes[pos++] << 8) | bytes[pos++];
var count = bytes[pos++];
for (var i = 0; i <= count; i++)
charset.push(strings[sid++]);
}
break;
case 2:
while (charset.length <= length) {
var first = bytes[pos++];
first = (first << 8) | bytes[pos++];
var numLeft = bytes[pos++];
numLeft = (numLeft << 8) | bytes[pos++];
for (var i = 0; i <= numLeft; ++i)
charset.push(strings[first++]);
var sid = (bytes[pos++] << 8) | bytes[pos++];
var count = (bytes[pos++] << 8) | bytes[pos++];
for (var i = 0; i <= count; i++)
charset.push(strings[sid++]);
}
break;
default: