aaac7fed
 liuqimichale
add
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"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));
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;
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