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Fix broken metadata

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Yury Delendik 2012-04-23 16:43:20 -05:00
parent 8b7cd47798
commit f7ccb291f4
3 changed files with 39 additions and 0 deletions
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20
src/metadata.js
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@ -4,8 +4,28 @@
'use strict';
var Metadata = PDFJS.Metadata = (function MetadataClosure() {
function fixMetadata(meta) {
return meta.replace(/>\\376\\377([^<]+)/g, function(all, codes) {
var bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g,
function(code, d1, d2, d3) {
return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);
});
var chars = '';
for (var i = 0; i < bytes.length; i += 2) {
var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);
chars += code >= 32 && code < 127 && code != 60 && code != 62 &&
code != 38 && false ? String.fromCharCode(code) :
'&#x' + (0x10000 + code).toString(16).substring(1) + ';';
}
return '>' + chars;
});
}
function Metadata(meta) {
if (typeof meta === 'string') {
// Ghostscript produces invalid metadata
meta = fixMetadata(meta);
var parser = new DOMParser();
meta = parser.parseFromString(meta, 'application/xml');
} else if (!(meta instanceof Document)) {