var hasOwnProperty = Object.prototype.hasOwnProperty;
|
|
function buildMap(list, caseInsensitive) {
|
var map = Object.create(null);
|
|
if (!Array.isArray(list)) {
|
return null;
|
}
|
|
for (var i = 0; i < list.length; i++) {
|
var name = list[i];
|
|
if (caseInsensitive) {
|
name = name.toLowerCase();
|
}
|
|
map[name] = true;
|
}
|
|
return map;
|
}
|
|
function buildList(data) {
|
if (!data) {
|
return null;
|
}
|
|
var tags = buildMap(data.tags, true);
|
var ids = buildMap(data.ids);
|
var classes = buildMap(data.classes);
|
|
if (tags === null &&
|
ids === null &&
|
classes === null) {
|
return null;
|
}
|
|
return {
|
tags: tags,
|
ids: ids,
|
classes: classes
|
};
|
}
|
|
function buildIndex(data) {
|
var scopes = false;
|
|
if (data.scopes && Array.isArray(data.scopes)) {
|
scopes = Object.create(null);
|
|
for (var i = 0; i < data.scopes.length; i++) {
|
var list = data.scopes[i];
|
|
if (!list || !Array.isArray(list)) {
|
throw new Error('Wrong usage format');
|
}
|
|
for (var j = 0; j < list.length; j++) {
|
var name = list[j];
|
|
if (hasOwnProperty.call(scopes, name)) {
|
throw new Error('Class can\'t be used for several scopes: ' + name);
|
}
|
|
scopes[name] = i + 1;
|
}
|
}
|
}
|
|
return {
|
whitelist: buildList(data),
|
blacklist: buildList(data.blacklist),
|
scopes: scopes
|
};
|
}
|
|
module.exports = {
|
buildIndex: buildIndex
|
};
|
