exports.getPreservedText = function(css, options, ignoredPseudos) {
var parsed = mensch.parse(css, {position: true, comments: true});
var rules = typeof parsed.stylesheet != 'undefined' && parsed.stylesheet.rules ? parsed.stylesheet.rules : [];
var preserved = [];
var lastStart = null;
for (var i = rules.length - 1; i >= 0; i--) {
if ((options.fontFaces && rules[i].type === 'font-face') ||
(options.mediaQueries && rules[i].type === 'media') ||
(options.keyFrames && rules[i].type === 'keyframes') ||
(options.pseudos && rules[i].selectors && this.matchesPseudo(rules[i].selectors[0], ignoredPseudos))) {
preserved.unshift(
mensch.stringify(
{ stylesheet: { rules: [ rules[i] ] }},
{ comments: false, indentation: ' ' }
)
);
}
lastStart = rules[i].position.start;
}
if (preserved.length === 0) {
return false;
}
return '\n' + preserved.join('\n') + '\n';
};
xhr.onreadystatechange = function() {
if (xhr.readyState === 4) {
try {
var ast = mensch.parse(xhr.responseText);
callback({ast: JSON.stringify(ast)});
} catch (e) {
callback({err: e});
}
}
};
exports.parseCSS = function(css) {
var parsed = mensch.parse(css, {position: true, comments: true});
var rules = typeof parsed.stylesheet != 'undefined' && parsed.stylesheet.rules ? parsed.stylesheet.rules : [];
var ret = [];
for (var i = 0, l = rules.length; i < l; i++) {
if (rules[i].type == 'rule') {
var rule = rules[i];
var selectors = rule.selectors;
for (var ii = 0, ll = selectors.length; ii < ll; ii++) {
ret.push([selectors[ii], rule.declarations]);
}
}
}
return ret;
};
exports.getPreservedText = function(css, options) {
var parsed = mensch.parse(css, {position: true, comments: true});
var rules = typeof parsed.stylesheet != 'undefined' && parsed.stylesheet.rules ? parsed.stylesheet.rules : [];
var preserved = css;
var preserved2 = [];
var lastStart = null;
for (var i = rules.length - 1; i >= 0; i--) {
if (options.fontFaces && rules[i].type === 'font-face') {
// preserve
// TODO remove the replace once we decide we don't need to mimic the previous outputs
// we'll also have to remove the multiline hack in normalizeLineEndings
preserved2.push(
mensch.stringify(
{ stylesheet: { rules: [ rules[i] ] }},
{ comments: false, indentation: ' ' }
).replace(/}/g,os.EOL+'}')
);
} else if (options.mediaQueries && rules[i].type === 'media') {
// preserve
preserved2.push(
mensch.stringify(
{ stylesheet: { rules: [ rules[i] ] }},
{ comments: false, indentation: ' ' }
)
);
} else {
// remove
preserved = removeStyle(preserved, rules[i].position.start, lastStart, 0, 0, 0, '');
}
lastStart = rules[i].position.start;
}
// preserved works by removing unwanted stuff, preserved2 by generating a new style with "stuff to keep"
// We have to decide what is our strategy (the preserved2 produces the same output of the cssom based version <= 2.0.0)
/* method 1: clean up original style and keep the remaining "as is" */
/*
if (preserved.trim().length === 0) return false;
return preserved;
*/
/* method 2: create style from AST */
if (preserved2.length === 0) return false;
return os.EOL+preserved2.join(os.EOL)+os.EOL;
};
exports.getPreservedText = function(css, options) {
var parsed = mensch.parse(css, {position: true, comments: true});
var rules = typeof parsed.stylesheet != 'undefined' && parsed.stylesheet.rules ? parsed.stylesheet.rules : [];
var preserved = [];
var lastStart = null;
for (var i = rules.length - 1; i >= 0; i--) {
if ((options.fontFaces && rules[i].type === 'font-face') ||
(options.mediaQueries && rules[i].type === 'media')) {
preserved.push(
mensch.stringify(
{ stylesheet: { rules: [ rules[i] ] }},
{ comments: false, indentation: ' ' }
)
);
}
lastStart = rules[i].position.start;
}
if (preserved.length === 0) return false;
return os.EOL+preserved.join(os.EOL)+os.EOL;
};
fn: function () {
mensch.stringify( mensch.parse(css) );
}