Merge
This commit is contained in:
Chris Jones
commit
79ef581434
696
pdf.js
696
pdf.js
@ -1,6 +1,17 @@
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/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- /
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/* vim: set shiftwidth=4 tabstop=8 autoindent cindent expandtab: */
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function warn(msg) {
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if (console && console.log)
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console.log(msg);
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if (print)
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print(msg);
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}
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||||
|
||||
function error(msg) {
|
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throw new Error(msg);
|
||||
}
|
||||
|
||||
var Stream = (function() {
|
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function constructor(arrayBuffer) {
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this.bytes = Uint8Array(arrayBuffer);
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@ -90,37 +101,611 @@ var StringStream = (function() {
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return constructor;
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})();
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function constructor(length) {
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this.bytes = new Uint8Array(length ? length : 4096);
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}
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constructor.prototype = {
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putByte: function(b) {
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bytes = newBytes;
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bytes[this.pos++] = b;
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asStream: function() {
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return new Stream(this.bytes);
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}
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}
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|
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return constructor;
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})();
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var FlateStream = (function() {
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const codeMap = [
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16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
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];
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const lengthDecode = [
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||||
[8, 0x0079],
|
||||
[8, 0x0039],
|
||||
[9, 0x00d3],
|
||||
[7, 0x010c],
|
||||
[8, 0x0069],
|
||||
[8, 0x0029],
|
||||
[9, 0x00b3],
|
||||
[8, 0x0009],
|
||||
[8, 0x0089],
|
||||
[8, 0x0049],
|
||||
[9, 0x00f3],
|
||||
[7, 0x0102],
|
||||
[8, 0x0055],
|
||||
[8, 0x0015],
|
||||
[8, 0x011d],
|
||||
[7, 0x0112],
|
||||
[8, 0x0075],
|
||||
[8, 0x0035],
|
||||
[9, 0x00cb],
|
||||
[7, 0x010a],
|
||||
[8, 0x0065],
|
||||
[8, 0x0025],
|
||||
[9, 0x00ab],
|
||||
[8, 0x0005],
|
||||
[8, 0x0085],
|
||||
[8, 0x0045],
|
||||
[9, 0x00eb],
|
||||
[7, 0x0106],
|
||||
[8, 0x005d],
|
||||
[8, 0x001d],
|
||||
[9, 0x009b],
|
||||
[7, 0x0116],
|
||||
[8, 0x007d],
|
||||
[8, 0x003d],
|
||||
[9, 0x00db],
|
||||
[7, 0x010e],
|
||||
[8, 0x006d],
|
||||
[8, 0x002d],
|
||||
[9, 0x00bb],
|
||||
[8, 0x000d],
|
||||
[8, 0x008d],
|
||||
[8, 0x004d],
|
||||
[9, 0x00fb],
|
||||
[7, 0x0101],
|
||||
[8, 0x0053],
|
||||
[8, 0x0013],
|
||||
[8, 0x011b],
|
||||
[7, 0x0111],
|
||||
[8, 0x0073],
|
||||
[8, 0x0033],
|
||||
[9, 0x00c7],
|
||||
[7, 0x0109],
|
||||
[8, 0x0063],
|
||||
[8, 0x0023],
|
||||
[9, 0x00a7],
|
||||
[8, 0x0003],
|
||||
[8, 0x0083],
|
||||
[8, 0x0043],
|
||||
[9, 0x00e7],
|
||||
[7, 0x0105],
|
||||
[8, 0x005b],
|
||||
[8, 0x001b],
|
||||
[9, 0x0097],
|
||||
[7, 0x0115],
|
||||
[8, 0x007b],
|
||||
[8, 0x003b],
|
||||
[9, 0x00d7],
|
||||
[7, 0x010d],
|
||||
[8, 0x006b],
|
||||
[8, 0x002b],
|
||||
[9, 0x00b7],
|
||||
[8, 0x000b],
|
||||
[8, 0x008b],
|
||||
[8, 0x004b],
|
||||
[9, 0x00f7],
|
||||
[7, 0x0103],
|
||||
[8, 0x0057],
|
||||
[8, 0x0017],
|
||||
[8, 0x011f],
|
||||
[7, 0x0113],
|
||||
[8, 0x0077],
|
||||
[8, 0x0037],
|
||||
[9, 0x00cf],
|
||||
[7, 0x010b],
|
||||
[8, 0x0067],
|
||||
[8, 0x0027],
|
||||
[9, 0x00af],
|
||||
[8, 0x0007],
|
||||
[8, 0x0087],
|
||||
[8, 0x0047],
|
||||
[9, 0x00ef],
|
||||
[7, 0x0107],
|
||||
[8, 0x005f],
|
||||
[8, 0x001f],
|
||||
[9, 0x009f],
|
||||
[7, 0x0117],
|
||||
[8, 0x007f],
|
||||
[8, 0x003f],
|
||||
[9, 0x00df],
|
||||
[7, 0x010f],
|
||||
[8, 0x006f],
|
||||
[8, 0x002f],
|
||||
[9, 0x00bf],
|
||||
[8, 0x000f],
|
||||
[8, 0x008f],
|
||||
[8, 0x004f],
|
||||
[9, 0x00ff]
|
||||
];
|
||||
|
||||
const fixedLitCodeTab = [
|
||||
fixedLitCodeTabCodes, 9
|
||||
];
|
||||
|
||||
const fixedDistCodeTabCodes = [
|
||||
[5, 0x0000],
|
||||
[5, 0x0010],
|
||||
[5, 0x0008],
|
||||
[5, 0x0018],
|
||||
[5, 0x0004],
|
||||
[5, 0x0014],
|
||||
[5, 0x000c],
|
||||
[5, 0x001c],
|
||||
[5, 0x0002],
|
||||
[5, 0x0012],
|
||||
[5, 0x000a],
|
||||
[5, 0x001a],
|
||||
[5, 0x0006],
|
||||
[5, 0x0016],
|
||||
[5, 0x000e],
|
||||
[0, 0x0000],
|
||||
[5, 0x0001],
|
||||
[5, 0x0011],
|
||||
[5, 0x0009],
|
||||
[5, 0x0019],
|
||||
[5, 0x0005],
|
||||
[5, 0x0015],
|
||||
[5, 0x000d],
|
||||
[5, 0x001d],
|
||||
[5, 0x0003],
|
||||
[5, 0x0013],
|
||||
[5, 0x000b],
|
||||
[5, 0x001b],
|
||||
[5, 0x0007],
|
||||
[5, 0x0017],
|
||||
[5, 0x000f],
|
||||
[0, 0x0000]
|
||||
];
|
||||
|
||||
const fixedDistCodeTab = [
|
||||
fixedDistCodeTabCodes, 5
|
||||
];
|
||||
|
||||
function constructor() {
|
||||
this.codeSize = 0;
|
||||
}
|
||||
|
||||
constructor.prototype = {
|
||||
getBits: function(bits) {
|
||||
var codeSize = this.codeSize;
|
||||
}
|
||||
};
|
||||
|
||||
return constructor;
|
||||
@ -237,12 +822,6 @@ function IsEOF(v) {
|
||||
return v == EOF;
|
||||
}
|
||||
|
||||
var Error = {};
|
||||
|
||||
function IsError(v) {
|
||||
return v == Error;
|
||||
}
|
||||
|
||||
var None = {};
|
||||
|
||||
function IsNone(v) {
|
||||
@ -294,10 +873,6 @@ var Lexer = (function() {
|
||||
}
|
||||
|
||||
constructor.prototype = {
|
||||
error: function(msg) {
|
||||
// TODO
|
||||
print(msg);
|
||||
},
|
||||
getNumber: function(ch) {
|
||||
var floating = false;
|
||||
var str = ch;
|
||||
@ -310,7 +885,7 @@ var Lexer = (function() {
|
||||
} else if (ch == "-") {
|
||||
// ignore minus signs in the middle of numbers to match
|
||||
// Adobe's behavior
|
||||
this.error("Badly formated number");
|
||||
warn("Badly formated number");
|
||||
} else if (ch >= "0" && ch <= "9") {
|
||||
str += ch;
|
||||
} else if (ch == "e" || ch == "E") {
|
||||
@ -323,7 +898,7 @@ var Lexer = (function() {
|
||||
} while (true);
|
||||
var value = parseFloat(str);
|
||||
if (isNaN(value))
|
||||
return Error;
|
||||
error("Invalid floating point number");
|
||||
return value;
|
||||
},
|
||||
getString: function(ch) {
|
||||
@ -335,7 +910,7 @@ var Lexer = (function() {
|
||||
do {
|
||||
switch (ch = stream.getChar()) {
|
||||
case undefined:
|
||||
this.error("Unterminated string");
|
||||
warn("Unterminated string");
|
||||
done = true;
|
||||
break;
|
||||
case '(':
|
||||
@ -352,7 +927,7 @@ var Lexer = (function() {
|
||||
case '\\':
|
||||
switch (ch = stream.getChar()) {
|
||||
case undefined:
|
||||
this.error("Unterminated string");
|
||||
warn("Unterminated string");
|
||||
done = true;
|
||||
break;
|
||||
case 'n':
|
||||
@ -423,7 +998,7 @@ var Lexer = (function() {
|
||||
stream.getChar();
|
||||
var x2 = ToHexDigit(stream.getChar());
|
||||
if (x2 == -1)
|
||||
this.error("Illegal digit in hex char in name");
|
||||
error("Illegal digit in hex char in name");
|
||||
str += String.fromCharCode((x << 4) | x2);
|
||||
} else {
|
||||
str += "#";
|
||||
@ -434,7 +1009,7 @@ var Lexer = (function() {
|
||||
}
|
||||
}
|
||||
if (str.length > 128)
|
||||
this.error("Warning: name token is longer than allowed by the specification");
|
||||
error("Warning: name token is longer than allowed by the specification");
|
||||
return new Name(str);
|
||||
},
|
||||
getHexString: function(ch) {
|
||||
@ -445,13 +1020,13 @@ var Lexer = (function() {
|
||||
if (ch == '>') {
|
||||
break;
|
||||
} else if (!ch) {
|
||||
this.error("Unterminated hex string");
|
||||
warn("Unterminated hex string");
|
||||
break;
|
||||
} else if (specialChars[ch.charCodeAt(0)] != 1) {
|
||||
var x, x2;
|
||||
if (((x = ToHexDigit(ch)) == -1) ||
|
||||
((x2 = ToHexDigit(stream.getChar())) == -1)) {
|
||||
this.error("Illegal character in hex string");
|
||||
error("Illegal character in hex string");
|
||||
break;
|
||||
}
|
||||
str += String.fromCharCode((x << 4) | x2);
|
||||
@ -511,7 +1086,7 @@ var Lexer = (function() {
|
||||
case ')':
|
||||
case '{':
|
||||
case '}':
|
||||
this.error("Illegal character");
|
||||
error("Illegal character");
|
||||
return Error;
|
||||
}
|
||||
|
||||
@ -520,7 +1095,7 @@ var Lexer = (function() {
|
||||
while (!!(ch = stream.lookChar()) && !specialChars[ch.charCodeAt(0)]) {
|
||||
stream.getChar();
|
||||
if (str.length == 128) {
|
||||
this.error("Command token too long");
|
||||
error("Command token too long");
|
||||
break;
|
||||
}
|
||||
str += ch;
|
||||
@ -592,7 +1167,7 @@ var Parser = (function() {
|
||||
while (!IsCmd(this.buf1, "]") && !IsEOF(this.buf1))
|
||||
array.push(this.getObj());
|
||||
if (IsEOF(this.buf1))
|
||||
this.error("End of file inside array");
|
||||
error("End of file inside array");
|
||||
this.shift();
|
||||
return array;
|
||||
} else if (IsCmd(this.buf1, "<<")) { // dictionary or stream
|
||||
@ -600,18 +1175,18 @@ var Parser = (function() {
|
||||
var dict = new Dict();
|
||||
while (!IsCmd(this.buf1, ">>") && !IsEOF(this.buf1)) {
|
||||
if (!IsName(this.buf1)) {
|
||||
this.error("Dictionary key must be a name object");
|
||||
error("Dictionary key must be a name object");
|
||||
shift();
|
||||
} else {
|
||||
var key = this.buf1.name;
|
||||
this.shift();
|
||||
if (IsEOF(this.buf1) || IsError(this.buf1))
|
||||
if (IsEOF(this.buf1))
|
||||
break;
|
||||
dict.set(key, this.getObj());
|
||||
}
|
||||
}
|
||||
if (IsEOF(this.buf1))
|
||||
this.error("End of file inside dictionary");
|
||||
error("End of file inside dictionary");
|
||||
|
||||
// stream objects are not allowed inside content streams or
|
||||
// object streams
|
||||
@ -661,7 +1236,7 @@ var Parser = (function() {
|
||||
// get length
|
||||
var length;
|
||||
if (!IsInt(length = dict.get("Length"))) {
|
||||
this.error("Bad 'Length' attribute in stream");
|
||||
error("Bad 'Length' attribute in stream");
|
||||
lenght = 0;
|
||||
}
|
||||
|
||||
@ -670,7 +1245,7 @@ var Parser = (function() {
|
||||
this.shift(); // '>>'
|
||||
this.shift(); // 'stream'
|
||||
if (!IsCmd(this.buf1, "endstream"))
|
||||
this.error("Missing 'endstream'");
|
||||
error("Missing 'endstream'");
|
||||
this.shift();
|
||||
|
||||
stream = stream.makeSubStream(pos, length);
|
||||
@ -692,7 +1267,7 @@ var Parser = (function() {
|
||||
var paramsArray = params;
|
||||
for (filter in filterArray) {
|
||||
if (!IsName(filter))
|
||||
this.error("Bad filter name");
|
||||
error("Bad filter name");
|
||||
else {
|
||||
params = null;
|
||||
if (IsArray(paramsArray) && (i in paramsArray))
|
||||
@ -738,7 +1313,7 @@ var Linearization = (function() {
|
||||
obj > 0) {
|
||||
return obj;
|
||||
}
|
||||
this.error("'" + name + "' field in linearization table is invalid");
|
||||
error("'" + name + "' field in linearization table is invalid");
|
||||
return 0;
|
||||
},
|
||||
getHint: function(index) {
|
||||
@ -751,7 +1326,7 @@ var Linearization = (function() {
|
||||
obj2 > 0) {
|
||||
return obj2;
|
||||
}
|
||||
this.error("Hints table in linearization table is invalid");
|
||||
error("Hints table in linearization table is invalid");
|
||||
return 0;
|
||||
},
|
||||
get length() {
|
||||
@ -1078,19 +1653,16 @@ var Interpreter = (function() {
|
||||
// TODO figure out how to type-check vararg functions
|
||||
fn.apply(gfx, args);
|
||||
else
|
||||
this.error("Unknown command '" + cmd + "'");
|
||||
error("Unknown command '" + cmd + "'");
|
||||
args.length = 0;
|
||||
} else {
|
||||
if (args.length > 33)
|
||||
this.error("Too many arguments '" + cmd + "'");
|
||||
error("Too many arguments '" + cmd + "'");
|
||||
args.push(obj);
|
||||
}
|
||||
}
|
||||
this.gfx.endDrawing();
|
||||
},
|
||||
error: function(what) {
|
||||
throw new Error(what);
|
||||
},
|
||||
}
|
||||
};
|
||||
|
||||
return constructor;
|
||||
@ -1421,7 +1993,7 @@ var CanvasGraphics = (function() {
|
||||
} else if (IsString(e)) {
|
||||
this.showText(e);
|
||||
} else {
|
||||
this.error("Unexpected element in TJ array");
|
||||
error("Unexpected element in TJ array");
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user