Sakurai/pdf.js
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This commit is contained in:
Artur Adib 2012-01-31 10:57:32 -05:00
parent 9e9674d45c
commit 775290d698
1 changed files with 9 additions and 9 deletions
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18
src/obj.js
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@ -292,11 +292,11 @@ var XRef = (function XRefClosure() {
// 0 1 <-- subsection header (first obj #, obj count) // 0 1 <-- subsection header (first obj #, obj count)
// 0000000000 65535 f <-- actual object (offset, generation #, f/n) // 0000000000 65535 f <-- actual object (offset, generation #, f/n)
// 23 2 <-- subsection header ... and so on ... // 23 2 <-- subsection header ... and so on ...
// 0000025518 00002 n // 0000025518 00002 n
// 0000025635 00000 n // 0000025635 00000 n
// trailer // trailer
// ... // ...
// Outer loop is over subsection headers // Outer loop is over subsection headers
var obj; var obj;
while (!isCmd(obj = parser.getObj(), 'trailer')) { while (!isCmd(obj = parser.getObj(), 'trailer')) {
@ -308,7 +308,7 @@ var XRef = (function XRefClosure() {
// Inner loop is over objects themselves // Inner loop is over objects themselves
for (var i = 0; i < count; i++) { for (var i = 0; i < count; i++) {
var entry = {}; var entry = {};
entry.offset = parser.getObj(); entry.offset = parser.getObj();
entry.gen = parser.getObj(); entry.gen = parser.getObj();
var type = parser.getObj(); var type = parser.getObj();
@ -319,19 +319,19 @@ var XRef = (function XRefClosure() {
entry.uncompressed = true; entry.uncompressed = true;
// Validate entry obj // Validate entry obj
if ( !isInt(entry.offset) || !isInt(entry.gen) || if (!isInt(entry.offset) || !isInt(entry.gen) ||
!(entry.free || entry.uncompressed) ) { !(entry.free || entry.uncompressed)) {
error('Invalid entry in XRef subsection: ' + first + ', ' + count); error('Invalid entry in XRef subsection: ' + first + ', ' + count);
} }
if (!this.entries[i + first]) if (!this.entries[i + first])
this.entries[i + first] = entry; this.entries[i + first] = entry;
} }
} }
// Sanity check: as per spec, first object must have these properties // Sanity check: as per spec, first object must have these properties
if ( this.entries[0] && if (this.entries[0] &&
!(this.entries[0].gen === 65535 && this.entries[0].free) ) !(this.entries[0].gen === 65535 && this.entries[0].free))
error('Invalid XRef table: unexpected first object'); error('Invalid XRef table: unexpected first object');
// Sanity check // Sanity check
@ -532,7 +532,7 @@ var XRef = (function XRefClosure() {
obj = dict.get('XRefStm'); obj = dict.get('XRefStm');
if (isInt(obj)) { if (isInt(obj)) {
var pos = obj; var pos = obj;
// ignore previously loaded xref streams // ignore previously loaded xref streams
// (possible infinite recursion) // (possible infinite recursion)
if (!(pos in this.xrefstms)) { if (!(pos in this.xrefstms)) {
this.xrefstms[pos] = 1; this.xrefstms[pos] = 1;