Sakurai/pdf.js
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parser content streams

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This commit is contained in:
Andreas Gal 2011-05-11 17:09:06 -07:00
parent 2326832f49
commit 52d8555c17
1 changed files with 12 additions and 6 deletions
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18
pdf.js
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@ -1146,7 +1146,7 @@ var Lexer = (function() {
}, },
getString: function(ch) { getString: function(ch) {
var n = 0; var n = 0;
var numParent = 1; var numParen = 1;
var done = false; var done = false;
var str = ch; var str = ch;
var stream = this.stream; var stream = this.stream;
@ -1198,7 +1198,7 @@ var Lexer = (function() {
var x = ch - '0'; var x = ch - '0';
ch = stream.lookChar(); ch = stream.lookChar();
if (ch >= '0' && ch <= '7') { if (ch >= '0' && ch <= '7') {
this.skip(); stream.skip();
x = (x << 3) + (x - '0'); x = (x << 3) + (x - '0');
ch = stream.lookChar(); ch = stream.lookChar();
if (ch >= '0' && ch <= '7') { if (ch >= '0' && ch <= '7') {
@ -1784,9 +1784,17 @@ var Page = (function() {
var obj = this.pageDict.get("Contents"); var obj = this.pageDict.get("Contents");
if (IsRef(obj)) if (IsRef(obj))
obj = this.xref.fetch(obj); obj = this.xref.fetch(obj);
if (!(IsArray(obj) || IsStream(obj))) if (!IsStream(obj))
error("invalid page contents object"); error("invalid page contents object");
return this.contents = obj; return this.contents = obj;
},
display: function() {
var stream = this.contents;
var parser = new Parser(new Lexer(stream), false);
var obj;
while (!IsEOF(obj = parser.getObj())) {
print(uneval(obj));
}
} }
}; };
@ -2752,9 +2760,7 @@ function runParseTests() {
var data = snarf("/tmp/paper.pdf", "binary"); var data = snarf("/tmp/paper.pdf", "binary");
var pdf = new PDFDoc(new Stream(data)); var pdf = new PDFDoc(new Stream(data));
var page = pdf.getPage(1); var page = pdf.getPage(1);
var contents = page.contents; page.display();
for (var i = 0; i < 100; ++i)
print(contents.getChar());
} }
if ("arguments" in this) { if ("arguments" in this) {