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| /**
* @file rule: no-meta-css
* @author chris<wfsr@foxmail.com>
*/
module.exports = {
name: 'no-meta-css',
desc: 'Classes should be semantic.',
target: 'parser',
lint: function (getCfg, parser, reporter) {
var config = getCfg();
if (!config) {
return;
}
var MIX_VALUE_PATTERN = /[\d#>:%]+/g;
var SPECIAL_PATTERN = /\(.+\)/g;
var SPLITER_PATTERN = /\s*,\s*/;
function reducer(map, name) {
map[name] = true;
return map;
}
var COLOR = 'red,green,blue,white,black,yellow,gray,silver,brown,sienna,orange,gold,ivory,indigo,purple,pink'
.split(SPLITER_PATTERN)
.reduce(reducer, {});
var PROPERTY = 'left,right,center,middle,top,bottom,bold,width,height,size,margin,padding,clear,float'
.split(SPLITER_PATTERN)
.reduce(reducer, {});
var map = {};
var keys = {};
var minLength = (config.minlen | 0) || 3;
var threshold = (config.threshold | 0) || 3;
function mark(name, pos) {
var current = map[name] = map[name] || {value: .9, items: []};
var value = .1;
var item = {pos: pos};
if (current.value < 1) {
if (COLOR[name] || PROPERTY[name]) {
value += 1;
}
var match = name.match(MIX_VALUE_PATTERN);
if (match) {
value += match.length * 1.5;
}
match = name.match(SPECIAL_PATTERN);
if (match) {
value += match.length * 2;
}
var length = name.length;
if (length <= minLength) {
value += 1 + (minLength - length) * .5;
}
}
current.value += value;
current.items.push(item);
if (!keys[name] && current.value > threshold) {
keys[name] = true;
}
}
function report(name, item) {
reporter.warn(item.pos, '045', 'Class name(' + name + ') should be semantic.');
}
parser.tokenizer.on('attribdata', function (value) {
var name = parser._attribname.toLowerCase();
if (name !== 'class') {
return;
}
var pos = this._sectionStart;
value.split(/\s+/).forEach(function (name) {
mark(name, pos, value);
});
});
parser.on('end', function () {
Object.keys(keys).forEach(function (key) {
map[key].items.forEach(function (item) {
report(key, item);
});
});
});
}
};
|