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fulljsmin.js
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fulljsmin.js
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/* jsmin.js - 2006-08-31
Author: Franck Marcia
This work is an adaptation of jsminc.c published by Douglas Crockford.
Permission is hereby granted to use the Javascript version under the
same conditions as the jsmin.c on which it is based.
jsmin.c
2006-05-04
Copyright (c) 2002 Douglas Crockford (www.crockford.com)
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
The Software shall be used for Good, not Evil.
Extended by Austin Cheney to lend support for minification of CSS for
Pretty Diff tool at http://prettydiff.com/
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Arguements:
* comment allows a user to pass in an extraneous string that is
returned to the front of the input.
* input is the source code to manipulate.
* level is the degree of minification strengthness. For Pretty Diff
the level is set to the highest value for the strongest possible
minification.
* type sets the code language for input. If the value is "css" then
jsmin presumes CSS language, otherwise jsmin defaults to JavaScript
* alter is used for CSS processing only. This argument determines
whether or not the source code should be alter so to achieve a
stronger minification resuling in smaller output.
*/
var jsmin = function (input, level, type, alter, fcomment) {
"use strict";
var start = (function () {
if (typeof input === "undefined") {
input = "";
level = 2;
} else {
if (level === undefined || level < 1 || level > 3) {
level = 2;
}
if (type === "javascript") {
input = input.replace(/\/\/(\s)*-->/g, "//-->");
} else if (type !== "css") {
input = "Error: The type argument is not provided a value of either 'css' or 'javascript'.";
}
}
}()),
ret,
atchar = input.match(/\@charset\s+("|')[\w\-]+("|');?/gi),
error = "",
a = "",
b = "",
geti,
getl,
EOF = -1,
LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz",
DIGITS = "0123456789",
OTHERS,
ALNUM,
fcom = [],
alterj = false,
asiflag = true,
theLookahead = EOF,
//isAlphanum -- return true if the character is a letter,
//digit, underscore, dollar sign, or non-ASCII character.
isAlphanum = function (c) {
return c !== EOF && (ALNUM.indexOf(c) > -1 || c.charCodeAt(0) > 126);
},
//jsasiq is a response to a regular expression and only
//serves to verify the white space in question contains a
//new line character
jsasiq = function (x) {
if (x.indexOf("\n") === -1) {
return x;
} else {
x = x.split("");
x[0] = x[0] + ";";
return x.join("");
}
},
//asifix determines whether "}" or ")" need to be followed
//by a semicolon during automatic semicolon insertion. This
//part cannot be performed with simple minification
//reduction or a regular expression due to nesting. Instead
//this one aspect of automatic semicolon must be treated
//as a logical irregularity of a regular syntax, much like
//deducing XML.
asiFix = function (y) {
var a = 0,
x = y.split(""),
b = x.length,
c = 0,
d = 0,
e = "",
f = "",
g = "",
h = "";
for (a = 0; a < b; a += 1) {
if (x[a] === "\\") {
a += 1;
} else if (x[a] === "\"" && f === "") {
f = "\"";
} else if (x[a] === "'" && f === "") {
f = "'";
} else if (x[a] === "/" && f === "" && !isAlphanum(x[a - 1]) && x[a - 1] !== ")" && x[a - 1] !== "]") {
if (x[a - 1] === " ") {
x[a - 1] = "";
if (!isAlphanum(x[a - 2])) {
f = "/";
x[a] = "pd";
} else if (x[a + 1] === " ") {
x[a + 1] = "";
}
} else {
f = "/";
x[a] = "pd";
}
} else if (x[a] === "/" && f === "" && x[a + 1] === " " && isAlphanum(x[a - 1])) {
x[a + 1] = "";
} else if (x[a] === "\"" && f === "\"") {
f = "";
} else if (x[a] === "'" && f === "'") {
f = "";
} else if (x[a] === "/" && f === "/") {
f = "";
x[a] = "pd";
} else if ((f === "'" || f === "\"") && x[a - 2] === "\\" && x[a - 1] === ";") {
x[a - 1] = "";
x[a - 2] = " ";
} else if (f === "" && (x[a] === "}" || x[a] === ")") && (a === b - 1 || x[a + 1] === "}" || isAlphanum(x[a + 1]))) {
if (typeof x[a - 3] === "string" && x[a - 2] === "=" && x[a - 1] === "{" && x[a] === "}" && (isAlphanum(x[a - 3]) || x[a - 3] === "]" || x[a - 3] === ")")) {
x[a] += ";";
} else {
d = -1;
e = "";
g = "";
if (x[a] === "}") {
g = "}";
h = "{";
} else {
g = ")";
h = "(";
}
for (c = a - 1; c > -1; c -= 1) {
if ((c > 1 && x[c - 1] === "\\" && x[c - 2] !== "\\") || (c === 1 && x[c - 1] === "\\")) {
c -= 1;
} else {
if (x[c].charAt(0) === g && e === "") {
d -= 1;
} else if (x[c] === h && e === "") {
d += 1;
} else if (x[c] === "\"" && e === "") {
e = "\"";
} else if (x[c] === "'" && e === "") {
e = "'";
} else if (x[c] === "pd" && e === "") {
e = "/";
} else if (x[c] === "\"" && e === "\"") {
e = "";
} else if (x[c] === "'" && e === "'") {
e = "";
} else if (x[c] === "pd" && e === "/") {
e = "";
}
}
if (d === 0 && (c !== a - 1 || (c === a - 1 && typeof x[c - 1] === "string" && x[c - 1] !== x[a]))) {
if (x[c - 1] === ")" && g === "}") {
c -= 2;
d = -1;
e = "";
for (c; c > -1; c -= 1) {
if ((c > 1 && x[c - 1] === "\\" && x[c - 2] !== "\\") || (c === 1 && x[c - 1] === "\\")) {
c -= 1;
} else {
if (x[c] === ")" && e === "") {
d -= 1;
} else if (x[c] === "(" && e === "") {
d += 1;
} else if (x[c] === "\"" && e === "") {
e = "\"";
} else if (x[c] === "'" && e === "") {
e = "'";
} else if (x[c] === "pd" && e === "") {
e = "/";
} else if (x[c] === "\"" && e === "\"") {
e = "";
} else if (x[c] === "'" && e === "'") {
e = "";
} else if (x[c] === "pd" && e === "/") {
e = "";
}
}
if (d === 0) {
c -= 1;
if (typeof x[c - 9] === "string" && x[c - 8] === "=" && x[c - 7] === "f" && x[c - 6] === "u" && x[c - 5] === "n" && x[c - 4] === "c" && x[c - 3] === "t" && x[c - 2] === "i" && x[c - 1] === "o" && x[c] === "n" && (isAlphanum(x[c - 9]) || x[c - 9] === "]" || x[c - 9] === ")")) {
x[a] += ";";
}
break;
}
}
break;
} else if (typeof x[c - 2] === "string" && x[c - 1] === "=" && (x[a - 1].length === 1 || x[a - 1] === "pd") && (isAlphanum(x[c - 2] || x[c - 2] === "]" || x[c - 2] === ")"))) {
if (typeof x[a + 1] !== "string" || x[a + 1] !== "/") {
x[a] += ";";
}
break;
} else {
break;
}
}
}
}
}
}
for (a = 0; a < b; a += 1) {
if (x[a] === "pd") {
x[a] = "/";
} else if (x[a] === "/" && typeof x[a + 1] === "string" && x[a + 1] === " ") {
x[a + 1] = "";
}
}
return x.join("").replace(/\"/g, "\"").replace(/\'/g, "'");
},
//reduction provides a logical compression to flatten
//redundantly applied CSS properties
reduction = function (x) {
var a = 0,
e = 0,
f = 0,
g = -1,
m = 0,
p = 0,
b = x.length,
c = [],
d = [],
h = [],
test = false,
//colorLow is used in a replace method to convert
//CSS hex colors from uppercase alpha characters to
//lowercase and in some cases shorten hex color
//codes from 6 characters to 3.
colorLow = function (y) {
y = y.toLowerCase();
if (y.length === 7 && y.charAt(1) === y.charAt(2) && y.charAt(3) === y.charAt(4) && y.charAt(5) === y.charAt(6)) {
y = "#" + y.charAt(1) + y.charAt(3) + y.charAt(5);
}
return y;
};
for (a = 0; a < b; a += 1) {
c.push(x.charAt(a));
if (x.charAt(a) === "{" || x.charAt(a + 1) === "}") {
d.push(c.join(""));
c = [];
}
}
if (x.charAt(a - 1) === "}") {
d.push("}");
}
b = d.length;
for (a = 0; a < b - 1; a += 1) {
if (d[a].charAt(d[a].length - 1) !== "{") {
if (d[a].indexOf("url(") > -1) {
h = d[a].split("");
f = h.length;
for (e = 3; e < f; e += 1) {
if (h[e - 3] === "u" && h[e - 2] === "r" && h[e - 1] === "l" && h[e] === "(") {
test = true;
}
if (test) {
if (h[e - 1] !== "\\" && h[e] === ")") {
test = false;
} else if (h[e] === ";") {
h[e] = "~PrettyDiffSemi~";
} else if (h[e] === ":") {
h[e] = "~PrettyDiffColon~";
}
}
}
d[a] = h.join("");
}
if (d[a].charAt(d[a].length - 1) === ";") {
d[a] = d[a].substr(0, d[a].length - 1);
}
c = d[a].replace(/:/g, "$").replace(/#[a-zA-Z0-9]{3,6}(?!(\w*\)))/g, colorLow).split(";").sort();
f = c.length;
for (e = 0; e < f; e += 1) {
if (c[e].charAt(0) === "_") {
c.push(c[e]);
c.splice(e, 1);
}
h.push(c[e].split("$"));
}
c = [].concat(h);
f = c.length;
for (e = 0; e < f; e += 1) {
if (c[e - 1] && c[e - 1][0] === c[e][0] && /\-[a-z]/.test(c[e - 1][1]) === false) {
c[e - 1] = "";
}
if (c[e][0] !== "margin" && c[e][0].indexOf("margin") !== -1) {
m += 1;
if (m === 4) {
c[e][0] = "margin";
c[e][1] = c[e][1] + " " + c[e - 1][1] + " " + c[e - 3][1] + " " + c[e - 2][1];
c[e - 3] = "";
c[e - 2] = "";
c[e - 1] = "";
if (c[e - 4] && c[e - 4][0] === "margin") {
c[e - 4] = "";
}
}
} else if (c[e][0] !== "padding" && c[e][0].indexOf("padding") !== -1) {
p += 1;
if (p === 4) {
c[e][0] = "padding";
c[e][1] = c[e][1] + " " + c[e - 1][1] + " " + c[e - 3][1] + " " + c[e - 2][1];
c[e - 3] = "";
c[e - 2] = "";
c[e - 1] = "";
if (c[e - 4] && c[e - 4][0] === "padding") {
c[e - 4] = "";
}
}
}
if (g === -1 && c[e + 1] && c[e][0].charAt(0) !== "-" && (c[e][0].indexOf("cue") !== -1 || c[e][0].indexOf("list-style") !== -1 || c[e][0].indexOf("outline") !== -1 || c[e][0].indexOf("overflow") !== -1 || c[e][0].indexOf("pause") !== -1) && (c[e][0] === c[e + 1][0].substring(0, c[e + 1][0].lastIndexOf("-")) || c[e][0].substring(0, c[e][0].lastIndexOf("-")) === c[e + 1][0].substring(0, c[e + 1][0].lastIndexOf("-")))) {
g = e;
if (c[g][0].indexOf("-") !== -1) {
c[g][0] = c[g][0].substring(0, c[g][0].lastIndexOf("-"));
}
} else if (g !== -1 && c[g][0] === c[e][0].substring(0, c[e][0].lastIndexOf("-"))) {
if (c[g][0] === "cue" || c[g][0] === "pause") {
c[g][1] = c[e][1] + " " + c[g][1];
} else {
c[g][1] = c[g][1] + " " + c[e][1];
}
c[e] = "";
} else if (g !== -1) {
g = -1;
}
}
for (e = 0; e < f; e += 1) {
if (c[e] !== "") {
c[e] = c[e].join(":");
}
}
d[a] = c.join(";").replace(/;+/g, ";").replace(/^;/, "");
}
}
return d.join("");
},
//fixURI forcefully writes double quote characters around
//URI fragments in CSS. If parenthesis characters are
//characters of the URI they must be escaped with a
//backslash, "\)", in accordance with the CSS specification,
//or they will damage the output.
fixURI = function (y) {
var a = 0,
b = [],
c = "",
x = y.replace(/\\\)/g, "~PDpar~").split("url("),
d = x.length,
e = "\"";
for (a = 1; a < d; a += 1) {
if (x[a].charAt(0) === "\"") {
e = "";
} else if (x[a].charAt(0) === "'") {
x[a] = x[a].substr(1, x[a].length - 1);
}
b = x[a].split(")");
c = b[0];
if (c.charAt(c.length - 1) !== "\"" && c.charAt(c.length - 1) !== "'") {
c = c + "\"";
} else if (c.charAt(c.length - 1) === "'" || c.charAt(c.length - 1) === "\"") {
c = c.substr(0, c.length - 1) + "\"";
}
b[0] = c;
x[a] = "url(" + e + b.join(")");
}
return x.join("").replace(/~PDpar~/g, "\\)");
},
//fixNegative is used to correct the collision between a
//number or increment and a hyphen
fixNegative = function (x) {
return x.replace(/\-/, " -");
},
//rgbToHex is used in a replace method to convert CSS colors
//from RGB definitions to hex definitions
rgbToHex = function (x) {
var a,
y = function (z) {
z = Number(z).toString(16);
if (z.length === 1) {
z = "0" + z;
}
return z;
};
a = "#" + x.replace(/\d+/g, y).replace(/rgb\(/, "").replace(/,/g, "").replace(/\)/, "").replace(/\s*/g, "");
return a;
},
//sameDist is used in a replace method to shorten redundant
//CSS distances to the fewest number of non-redundant
//increments
sameDist = function (y) {
var a = "",
x = [];
if (y === "0") {
return y;
}
if (y.charAt(0) === " ") {
a = " ";
y = y.substr(1, y.length);
}
x = y.split(" ");
if (x.length === 4) {
if (x[0] === x[1] && x[1] === x[2] && x[2] === x[3]) {
x[1] = "";
x[2] = "";
x[3] = "";
} else if (x[0] === x[2] && x[1] === x[3] && x[0] !== x[1]) {
x[2] = "";
x[3] = "";
} else if (x[0] !== x[2] && x[1] === x[3]) {
x[3] = "";
}
} else if (x.length === 3 && x[0] === x[2] && x[0] !== x[1]) {
x[2] = "";
} else if (x.length === 2 && a !== " " && x[0] === x[1]) {
x[1] = "";
}
return a + x.join(" ").replace(/\s+/g, " ").replace(/\s+$/, "");
},
singleZero = function (x) {
var a = x.substr(0, x.indexOf(":") + 1);
if (a === "radius:" || a === "shadow:" || x.charAt(x.length - 1) !== "0" || (x.charAt(x.length - 1) === "0" && x.charAt(x.length - 2) !== " ")) {
return x;
}
return a + "0";
},
//endZero is used in a replace method to convert "20.0" to
//"20" in CSS
endZero = function (x) {
var a = x.indexOf(".");
return x.substr(0, a);
},
//runZero suppresses continuous runs of 0 to a single 0 if
//they are not preceeded by a period (.), number sign (#),
//or a hex digit (0-9, a-f)
runZero = function (x) {
var a = x.charAt(0);
if (a === "#" || a === "." || /[a-f0-9]/.test(a)) {
return x;
} else {
return a + "0";
}
},
//startZero is used in a replace method to convert "0.02" to
//".02" in CSS
startZero = function (x) {
var a = x.indexOf(".");
return x.charAt(0) + x.substr(a, x.length);
},
//This function prevents percentage numbers from running
//together
fixpercent = function (x) {
return x.replace(/%/, "% ");
},
//get -- return the next character. Watch out for lookahead.
//If the character is a control character, translate it to a
//space or linefeed.
get = function () {
var c = theLookahead;
if (geti === getl) {
return EOF;
}
theLookahead = EOF;
if (c === EOF) {
c = input.charAt(geti);
geti += 1;
}
if (c >= " " || c === "\n") {
return c;
}
if (c === "\r") {
return "\n";
}
return " ";
},
//peek -- get the next character without getting it.
peek = function () {
theLookahead = get();
return theLookahead;
},
//next -- get the next character, excluding comments. peek()
//is used to see if a "/" is followed by a "/" or "*".
next = function () {
var c = get();
if (c === "/" && (type === "javascript" || (type === "css" && peek() !== "/"))) {
switch (peek()) {
case "/":
for (;;) {
c = get();
if (c <= "\n") {
return c;
}
}
break;
case "*":
get();
for (;;) {
switch (get()) {
case "'":
c = get().replace(/'/, "");
break;
case "\"":
c = get().replace(/"/, "");
break;
case "*":
if (peek() === "/") {
get();
return " ";
}
break;
case EOF:
error = "Error: Unterminated block comment.";
return error;
}
}
break;
default:
return c;
}
}
return c;
},
//action -- do something! What you do is determined by the
//argument:
// 1 Output A. Copy B to A. Get the next B.
// 2 Copy B to A. Get the next B. (Delete A).
// 3 Get the next B. (Delete B).
//action treats a string as a single character. Wow!
//action recognizes a regular expression if it is preceded
//by ( or , or =.
action = function (d) {
var r = [];
if (d === 1) {
r.push(a);
}
if (d < 3) {
a = b;
if (a === "'" || a === "\"") {
if (d === 1 && (r[0] === ")" || r[0] === "]") && alterj) {
a = ";";
return r[0];
}
for (;;) {
r.push(a);
a = get();
if (a === b) {
break;
}
if (a <= "\n") {
if (type === "css") {
error = "Error: This does not appear to be CSS.";
} else {
error = "Error: This does not appear to be JavaScript.";
}
return error;
}
if (a === "\\") {
r.push(a);
a = get();
}
}
}
}
b = next();
if (b === "/" && "(,=:[!&|".indexOf(a) > -1) {
r.push(a);
r.push(b);
for (;;) {
a = get();
if (a === "/") {
break;
} else if (a === "\\") {
r.push(a);
a = get();
} else if (a <= "\n") {
error = "Error: unterminated JavaScript Regular Expression literal";
return error;
}
r.push(a);
}
b = next();
}
return r.join("");
},
//m -- Copy the input to the output, deleting the characters
//which are insignificant to JavaScript. Comments will be
//removed. Tabs will be replaced with spaces. Carriage
//returns will be replaced with linefeeds. Most spaces and
//linefeeds will be removed.
m = function () {
var firstComment = (function () {
var a = 0,
b = input.length,
c = "";
if (fcomment !== true || (/^\s*\/\*/.test(input) !== true && /^\s*\/\//.test(input) !== true)) {
return;
}
for (a = 0; a < b; a += 1) {
if (c === "") {
if (input.charAt(a) === "/" && input.charAt(a + 1) && (input.charAt(a + 1) === "*" || input.charAt(a + 1) === "/")) {
c = input.substr(a, 2);
fcom.push(input.charAt(a));
} else if (/\s/.test(input.charAt(a)) !== true) {
return;
}
} else {
fcom.push(input.charAt(a));
if (input.charAt(a) === "*" && c === "/*" && input.charAt(a + 1) && input.charAt(a + 1) === "/") {
fcom.push("/\n");
if (input.charAt(a + 2) && input.charAt(a + 2) === "\n") {
a += 2;
} else {
a += 1;
}
c = "";
} else if ((input.charAt(a) === "\n" || input.charAt(a) === "\r") && c === "//") {
c = "";
}
}
}
}()),
r = [],
s = "";
if (error !== "") {
return error;
}
a = "\n";
r.push(action(3));
while (a !== EOF) {
if (a === " " && !(type === "css" && b === "#")) {
if (isAlphanum(b)) {
r.push(action(1));
} else {
r.push(action(2));
if (alterj) {
s = r[r.length - 1];
if ((isAlphanum(s) || s === "'" || s === "\"" || s === "]" || s === ")") && a === "}") {
r.push(";");
}
}
}
} else if (a === "\n") {
switch (b) {
case "{":
case "[":
case "(":
case "+":
case "-":
r.push(action(1));
break;
case " ":
r.push(action(3));
break;
default:
if (isAlphanum(b)) {
r.push(action(1));
} else {
if (level === 1 && b !== "\n") {
r.push(action(1));
} else {
r.push(action(2));
}
}
}
} else {
switch (b) {
case " ":
if (isAlphanum(a)) {
r.push(action(1));
break;
}
r.push(action(3));
break;
case "\n":
if (level === 1 && a !== "\n") {
r.push(action(1));
} else if (a === "}") {
asiflag = true;
if (level === 3) {
r.push(action(3));
} else {
r.push(action(1));
}
} else if (isAlphanum(a)) {
r.push(action(1));
if (alterj) {
s = r[r.length - 1];
if (s === ":") {
asiflag = false;
}
if (asiflag && (isAlphanum(s) || s === "]" || s === ")") && a === "\n" && (b === "}" || b === " ")) {
r.push(";");
}
}
} else {
r.push(action(3));
}
break;
default:
r.push(action(1));
if (alterj) {
s = r[r.length - 1];
if (s === "{") {
asiflag = true;
} else if (s === ":") {
asiflag = false;
}
if (asiflag && (((s === "]" || s === ")") && isAlphanum(a) && a !== "/") || (a === "}" && (isAlphanum(s) || s === "'" || s === "\"")))) {
r.push(";");
}
}
break;
}
}
}
return r.join("");
};
if (type === "css") {
OTHERS = "-._\\";
} else {
if (alter && level === 2) {
alterj = true;
input = input.replace(/\r\n?/g, "\n").replace(/("|')\s+["'a-zA-Z_$]/g, jsasiq);
}
OTHERS = "_$//";
}
ALNUM = LETTERS + DIGITS + OTHERS;
geti = 0;
getl = input.length;
ret = m(input);
if (/(\}\s*)$/.test(input) && !/(\}\s*)$/.test(ret)) {
ret = ret + "}";
}
if (/\s/.test(ret.charAt(0))) {
ret = ret.slice(1, ret.length);
}
if (type === "css") {
ret = ret.replace(/\: #/g, ":#").replace(/\; #/g, ";#").replace(/\, #/g, ",#").replace(/\s+/g, " ").replace(/\} /g, "}").replace(/\{ /g, "{").replace(/\\\)/g, "~PDpar~").replace(/\)/g, ") ").replace(/\) ;/g, ");").replace(/\d%[a-z0-9]/g, fixpercent);
if (alter) {
ret = reduction(ret).replace(/@charset("|')?[\w\-]+("|')?;?/gi, "").replace(/(#|\.)?[\w]*\{\}/gi, "").replace(/(\S|\s)0+/g, runZero).replace(/:[\w\s\!\.\-%]*\d+\.0*(?!\d)/g, endZero).replace(/(:| )0+\.\d+/g, startZero).replace(/\s?((\.\d+|\d+\.\d+|\d+)[a-zA-Z]+|0 )+((\.\d+|\d+\.\d+|\d+)[a-zA-Z]+)|0/g, sameDist);
ret = ret.replace(/:\.?0(\%|px|in|cm|mm|em|ex|pt|pc)/g, ":0").replace(/ \.?0(\%|px|in|cm|mm|em|ex|pt|pc)/g, " 0").replace(/bottom:none/g, "bottom:0").replace(/top:none/g, "top:0").replace(/left:none/g, "left:0").replace(/right:none/, "right:0").replace(/:0 0 0 0/g, ":0").replace(/:(\s*([0-9]+\.)?[0-9]+(%|in|cm|mm|em|ex|pt|pc|px)?)+\-([0-9]*\.)?[0-9]/g, fixNegative);
ret = ret.replace(/[a-z]*:(0\s*)+\-?\.?\d?/g, singleZero).replace(/ 0 0 0 0/g, " 0").replace(/rgb\(\d+,\d+,\d+\)/g, rgbToHex).replace(/background\-position:0;/gi, "background-position:0 0;").replace(/;+/g, ";").replace(/\s*[\w\-]+:\s*\}/g, "}").replace(/\s*[\w\-]+:\s*;/g, "").replace(/;\}/g, "}").replace(/\{\s+\}/g, "{}").replace(/\s+\)/g, ")").replace(/\s+\,/g, ",");
//This logic is used to pull the first "@charset"
// definition to the extreme top and remove all others
if (atchar === null) {
atchar = [""];
} else if (atchar[0].charAt(atchar[0].length - 1) !== ";") {
atchar[0] = atchar[0] + ";";
}
ret = atchar[0].replace(/@charset/i, "@charset") + fixURI(ret).replace(/~PrettyDiffColon~/g, ":").replace(/~PrettyDiffSemi~/g, ";");
}
ret = ret.replace(/~PDpar~/g, "\\)");
} else if (alterj) {
if (ret.charAt(ret.length - 1) !== ";") {
ret += ";";
}
ret = ret.replace(/(\s+)$/, "").replace(/\n/g, ";").replace(/\}\u003b/g, "}").replace(/x{2}-->/g, "//-->");
ret = asiFix(ret);
} else {
ret = ret.replace(/^\s+/, "").replace(/x{2}-->/g, "//-->");
}
if (error !== "") {
return error;
} else {
return fcom.join("") + ret;
}
};