Sakurai/pdf.js
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Better 'EI' matching (ref #536)

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notmasteryet 2011-09-26 21:17:16 -05:00
parent 6ae80b5e78
commit 2d3e8bbb4c
1 changed files with 30 additions and 7 deletions
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37
pdf.js
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@ -2832,14 +2832,37 @@ var Parser = (function parserParser() {
// parse image stream
var startPos = stream.pos;
var c1 = stream.getChar();
var c2 = stream.getChar();
while (!(c1 == 'E' && c2 == 'I') && c2 != null) {
c1 = c2;
c2 = stream.getChar();
// searching for the /\sEI\s/
var state = 0, ch;
while (state != 4 && (ch = stream.getByte()) != null) {
switch (ch) {
case 0x20:
case 0x0D:
case 0x0A:
state = state === 3 ? 4 : 1;
break;
case 0x45:
state = state === 1 ? 2 : 0;
break;
case 0x49:
state = state === 2 ? 3 : 0;
break;
default:
state = 0;
break;
}
}
var length = (stream.pos - 2) - startPos;
// TODO improve the small images performance to remove the limit
var inlineImgLimit = 500;
if (++this.inlineImg >= inlineImgLimit) {
if (this.inlineImg === inlineImgLimit)
warn('Too many inline images');
this.shift();
return null;
}
var length = (stream.pos - 4) - startPos;
var imageStream = stream.makeSubStream(startPos, length, dict);
if (cipherTransform)
imageStream = cipherTransform.createStream(imageStream);
@ -4377,7 +4400,7 @@ var PartialEvaluator = (function partialEvaluator() {
fnArray.push(fn);
argsArray.push(args);
args = [];
} else {
} else if (obj != null) {
assertWellFormed(args.length <= 33, 'Too many arguments');
args.push(obj);
}