mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-22 16:18:08 +02:00
Code Activity

Merge pull request #3374 from yurydelendik/ei-search

Browse source 
Improves search of EI (end of inlined image)
This commit is contained in:
Brendan Dahl 2013-06-25 15:19:41 -07:00
commit b22bc2daa5
4 changed files with 30 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/parser.js
View file

@ -154,13 +154,22 @@ var Parser = (function ParserClosure() {
var startPos = stream.pos;
// searching for the /EI\s/
var state = 0, ch;
var state = 0, ch, i, ii;
while (state != 4 &&
(ch = stream.getByte()) !== null && ch !== undefined) {
switch (ch) {
case 0x20:
case 0x0D:
case 0x0A:
// let's check next five bytes to be ASCII... just be sure
var followingBytes = stream.peekBytes(5);
for (i = 0, ii = followingBytes.length; i < ii; i++) {
ch = followingBytes[i];
if (ch !== 0x0A && ch != 0x0D && (ch < 0x20 || ch > 0x7F)) {
state = 0;
break; // some binary stuff found, resetting the state
}
}
state = state === 3 ? 4 : 0;
break;
case 0x45:

10
src/stream.js
View file

@ -57,6 +57,11 @@ var Stream = (function StreamClosure() {
this.pos = end;
return bytes.subarray(pos, end);
},
peekBytes: function Stream_peekBytes(length) {
var bytes = this.getBytes(length);
this.pos -= bytes.length;
return bytes;
},
lookChar: function Stream_lookChar() {
if (this.pos >= this.end)
return null;
@ -161,6 +166,11 @@ var DecodeStream = (function DecodeStreamClosure() {
this.pos = end;
return this.buffer.subarray(pos, end);
},
peekBytes: function DecodeStream_peekBytes(length) {
var bytes = this.getBytes(length);
this.pos -= bytes.length;
return bytes;
},
lookChar: function DecodeStream_lookChar() {
var pos = this.pos;
while (this.bufferLength <= pos) {