'use strict';
|
|
const JSON5 = require('json5');
|
|
const specialValues = {
|
null: null,
|
true: true,
|
false: false,
|
};
|
|
function parseQuery(query) {
|
if (query.substr(0, 1) !== '?') {
|
throw new Error(
|
"A valid query string passed to parseQuery should begin with '?'"
|
);
|
}
|
|
query = query.substr(1);
|
|
if (!query) {
|
return {};
|
}
|
|
if (query.substr(0, 1) === '{' && query.substr(-1) === '}') {
|
return JSON5.parse(query);
|
}
|
|
const queryArgs = query.split(/[,&]/g);
|
const result = {};
|
|
queryArgs.forEach((arg) => {
|
const idx = arg.indexOf('=');
|
|
if (idx >= 0) {
|
let name = arg.substr(0, idx);
|
let value = decodeURIComponent(arg.substr(idx + 1));
|
|
// eslint-disable-next-line no-prototype-builtins
|
if (specialValues.hasOwnProperty(value)) {
|
value = specialValues[value];
|
}
|
|
if (name.substr(-2) === '[]') {
|
name = decodeURIComponent(name.substr(0, name.length - 2));
|
|
if (!Array.isArray(result[name])) {
|
result[name] = [];
|
}
|
|
result[name].push(value);
|
} else {
|
name = decodeURIComponent(name);
|
result[name] = value;
|
}
|
} else {
|
if (arg.substr(0, 1) === '-') {
|
result[decodeURIComponent(arg.substr(1))] = false;
|
} else if (arg.substr(0, 1) === '+') {
|
result[decodeURIComponent(arg.substr(1))] = true;
|
} else {
|
result[decodeURIComponent(arg)] = true;
|
}
|
}
|
});
|
|
return result;
|
}
|
|
module.exports = parseQuery;
|
