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//.CommonJS
var CSSOM = {};
///CommonJS
/**
* @param {string} token
*/
CSSOM.parse = function parse(token) {
var i = 0;
/**
"before-selector" or
"selector" or
"atRule" or
"atBlock" or
"conditionBlock" or
"before-name" or
"name" or
"before-value" or
"value"
*/
var state = "before-selector";
var index;
var buffer = "";
var valueParenthesisDepth = 0;
var SIGNIFICANT_WHITESPACE = {
"selector": true,
"value": true,
"value-parenthesis": true,
"atRule": true,
"importRule-begin": true,
"importRule": true,
"atBlock": true,
"conditionBlock": true,
'documentRule-begin': true
};
var styleSheet = new CSSOM.CSSStyleSheet();
// @type CSSStyleSheet|CSSMediaRule|CSSSupportsRule|CSSFontFaceRule|CSSKeyframesRule|CSSDocumentRule
var currentScope = styleSheet;
// @type CSSMediaRule|CSSSupportsRule|CSSKeyframesRule|CSSDocumentRule
var parentRule;
var ancestorRules = [];
var hasAncestors = false;
var prevScope;
var name, priority="", styleRule, mediaRule, supportsRule, importRule, fontFaceRule, keyframesRule, documentRule, hostRule;
var atKeyframesRegExp = /@(-(?:\w+-)+)?keyframes/g;
var parseError = function(message) {
var lines = token.substring(0, i).split('\n');
var lineCount = lines.length;
var charCount = lines.pop().length + 1;
var error = new Error(message + ' (line ' + lineCount + ', char ' + charCount + ')');
error.line = lineCount;
/* jshint sub : true */
error['char'] = charCount;
error.styleSheet = styleSheet;
throw error;
};
for (var character; (character = token.charAt(i)); i++) {
switch (character) {
case " ":
case "\t":
case "\r":
case "\n":
case "\f":
if (SIGNIFICANT_WHITESPACE[state]) {
buffer += character;
}
break;
// String
case '"':
index = i + 1;
do {
index = token.indexOf('"', index) + 1;
if (!index) {
parseError('Unmatched "');
}
} while (token[index - 2] === '\\');
buffer += token.slice(i, index);
i = index - 1;
switch (state) {
case 'before-value':
state = 'value';
break;
case 'importRule-begin':
state = 'importRule';
break;
}
break;
case "'":
index = i + 1;
do {
index = token.indexOf("'", index) + 1;
if (!index) {
parseError("Unmatched '");
}
} while (token[index - 2] === '\\');
buffer += token.slice(i, index);
i = index - 1;
switch (state) {
case 'before-value':
state = 'value';
break;
case 'importRule-begin':
state = 'importRule';
break;
}
break;
// Comment
case "/":
if (token.charAt(i + 1) === "*") {
i += 2;
index = token.indexOf("*/", i);
if (index === -1) {
parseError("Missing */");
} else {
i = index + 1;
}
} else {
buffer += character;
}
if (state === "importRule-begin") {
buffer += " ";
state = "importRule";
}
break;
// At-rule
case "@":
if (token.indexOf("@-moz-document", i) === i) {
state = "documentRule-begin";
documentRule = new CSSOM.CSSDocumentRule();
documentRule.__starts = i;
i += "-moz-document".length;
buffer = "";
break;
} else if (token.indexOf("@media", i) === i) {
state = "atBlock";
mediaRule = new CSSOM.CSSMediaRule();
mediaRule.__starts = i;
i += "media".length;
buffer = "";
break;
} else if (token.indexOf("@supports", i) === i) {
state = "conditionBlock";
supportsRule = new CSSOM.CSSSupportsRule();
supportsRule.__starts = i;
i += "supports".length;
buffer = "";
break;
} else if (token.indexOf("@host", i) === i) {
state = "hostRule-begin";
i += "host".length;
hostRule = new CSSOM.CSSHostRule();
hostRule.__starts = i;
buffer = "";
break;
} else if (token.indexOf("@import", i) === i) {
state = "importRule-begin";
i += "import".length;
buffer += "@import";
break;
} else if (token.indexOf("@font-face", i) === i) {
state = "fontFaceRule-begin";
i += "font-face".length;
fontFaceRule = new CSSOM.CSSFontFaceRule();
fontFaceRule.__starts = i;
buffer = "";
break;
} else {
atKeyframesRegExp.lastIndex = i;
var matchKeyframes = atKeyframesRegExp.exec(token);
if (matchKeyframes && matchKeyframes.index === i) {
state = "keyframesRule-begin";
keyframesRule = new CSSOM.CSSKeyframesRule();
keyframesRule.__starts = i;
keyframesRule._vendorPrefix = matchKeyframes[1]; // Will come out as undefined if no prefix was found
i += matchKeyframes[0].length - 1;
buffer = "";
break;
} else if (state === "selector") {
state = "atRule";
}
}
buffer += character;
break;
case "{":
if (state === "selector" || state === "atRule") {
styleRule.selectorText = buffer.trim();
styleRule.style.__starts = i;
buffer = "";
state = "before-name";
} else if (state === "atBlock") {
mediaRule.media.mediaText = buffer.trim();
if (parentRule) {
ancestorRules.push(parentRule);
}
currentScope = parentRule = mediaRule;
mediaRule.parentStyleSheet = styleSheet;
buffer = "";
state = "before-selector";
} else if (state === "conditionBlock") {
supportsRule.conditionText = buffer.trim();
if (parentRule) {
ancestorRules.push(parentRule);
}
currentScope = parentRule = supportsRule;
supportsRule.parentStyleSheet = styleSheet;
buffer = "";
state = "before-selector";
} else if (state === "hostRule-begin") {
if (parentRule) {
ancestorRules.push(parentRule);
}
currentScope = parentRule = hostRule;
hostRule.parentStyleSheet = styleSheet;
buffer = "";
state = "before-selector";
} else if (state === "fontFaceRule-begin") {
if (parentRule) {
ancestorRules.push(parentRule);
fontFaceRule.parentRule = parentRule;
}
fontFaceRule.parentStyleSheet = styleSheet;
styleRule = fontFaceRule;
buffer = "";
state = "before-name";
} else if (state === "keyframesRule-begin") {
keyframesRule.name = buffer.trim();
if (parentRule) {
ancestorRules.push(parentRule);
keyframesRule.parentRule = parentRule;
}
keyframesRule.parentStyleSheet = styleSheet;
currentScope = parentRule = keyframesRule;
buffer = "";
state = "keyframeRule-begin";
} else if (state === "keyframeRule-begin") {
styleRule = new CSSOM.CSSKeyframeRule();
styleRule.keyText = buffer.trim();
styleRule.__starts = i;
buffer = "";
state = "before-name";
} else if (state === "documentRule-begin") {
// FIXME: what if this '{' is in the url text of the match function?
documentRule.matcher.matcherText = buffer.trim();
if (parentRule) {
ancestorRules.push(parentRule);
documentRule.parentRule = parentRule;
}
currentScope = parentRule = documentRule;
documentRule.parentStyleSheet = styleSheet;
buffer = "";
state = "before-selector";
}
break;
case ":":
if (state === "name") {
name = buffer.trim();
buffer = "";
state = "before-value";
} else {
buffer += character;
}
break;
case "(":
if (state === 'value') {
// ie css expression mode
if (buffer.trim() === 'expression') {
var info = (new CSSOM.CSSValueExpression(token, i)).parse();
if (info.error) {
parseError(info.error);
} else {
buffer += info.expression;
i = info.idx;
}
} else {
state = 'value-parenthesis';
//always ensure this is reset to 1 on transition
//from value to value-parenthesis
valueParenthesisDepth = 1;
buffer += character;
}
} else if (state === 'value-parenthesis') {
valueParenthesisDepth++;
buffer += character;
} else {
buffer += character;
}
break;
case ")":
if (state === 'value-parenthesis') {
valueParenthesisDepth--;
if (valueParenthesisDepth === 0) state = 'value';
}
buffer += character;
break;
case "!":
if (state === "value" && token.indexOf("!important", i) === i) {
priority = "important";
i += "important".length;
} else {
buffer += character;
}
break;
case ";":
switch (state) {
case "value":
styleRule.style.setProperty(name, buffer.trim(), priority);
priority = "";
buffer = "";
state = "before-name";
break;
case "atRule":
buffer = "";
state = "before-selector";
break;
case "importRule":
importRule = new CSSOM.CSSImportRule();
importRule.parentStyleSheet = importRule.styleSheet.parentStyleSheet = styleSheet;
importRule.cssText = buffer + character;
styleSheet.cssRules.push(importRule);
buffer = "";
state = "before-selector";
break;
default:
buffer += character;
break;
}
break;
case "}":
switch (state) {
case "value":
styleRule.style.setProperty(name, buffer.trim(), priority);
priority = "";
/* falls through */
case "before-name":
case "name":
styleRule.__ends = i + 1;
if (parentRule) {
styleRule.parentRule = parentRule;
}
styleRule.parentStyleSheet = styleSheet;
currentScope.cssRules.push(styleRule);
buffer = "";
if (currentScope.constructor === CSSOM.CSSKeyframesRule) {
state = "keyframeRule-begin";
} else {
state = "before-selector";
}
break;
case "keyframeRule-begin":
case "before-selector":
case "selector":
// End of media/supports/document rule.
if (!parentRule) {
parseError("Unexpected }");
}
// Handle rules nested in @media or @supports
hasAncestors = ancestorRules.length > 0;
while (ancestorRules.length > 0) {
parentRule = ancestorRules.pop();
if (
parentRule.constructor.name === "CSSMediaRule"
|| parentRule.constructor.name === "CSSSupportsRule"
) {
prevScope = currentScope;
currentScope = parentRule;
currentScope.cssRules.push(prevScope);
break;
}
if (ancestorRules.length === 0) {
hasAncestors = false;
}
}
if (!hasAncestors) {
currentScope.__ends = i + 1;
styleSheet.cssRules.push(currentScope);
currentScope = styleSheet;
parentRule = null;
}
buffer = "";
state = "before-selector";
break;
}
break;
default:
switch (state) {
case "before-selector":
state = "selector";
styleRule = new CSSOM.CSSStyleRule();
styleRule.__starts = i;
break;
case "before-name":
state = "name";
break;
case "before-value":
state = "value";
break;
case "importRule-begin":
state = "importRule";
break;
}
buffer += character;
break;
}
}
return styleSheet;
};
//.CommonJS
exports.parse = CSSOM.parse;
// The following modules cannot be included sooner due to the mutual dependency with parse.js
CSSOM.CSSStyleSheet = require("./CSSStyleSheet").CSSStyleSheet;
CSSOM.CSSStyleRule = require("./CSSStyleRule").CSSStyleRule;
CSSOM.CSSImportRule = require("./CSSImportRule").CSSImportRule;
CSSOM.CSSMediaRule = require("./CSSMediaRule").CSSMediaRule;
CSSOM.CSSSupportsRule = require("./CSSSupportsRule").CSSSupportsRule;
CSSOM.CSSFontFaceRule = require("./CSSFontFaceRule").CSSFontFaceRule;
CSSOM.CSSHostRule = require("./CSSHostRule").CSSHostRule;
CSSOM.CSSStyleDeclaration = require('./CSSStyleDeclaration').CSSStyleDeclaration;
CSSOM.CSSKeyframeRule = require('./CSSKeyframeRule').CSSKeyframeRule;
CSSOM.CSSKeyframesRule = require('./CSSKeyframesRule').CSSKeyframesRule;
CSSOM.CSSValueExpression = require('./CSSValueExpression').CSSValueExpression;
CSSOM.CSSDocumentRule = require('./CSSDocumentRule').CSSDocumentRule;
///CommonJS