function encodeReserved(str) {
return str
.split(/(%[0-9A-Fa-f]{2})/g)
.map(function (part) {
if (!/%[0-9A-Fa-f]/.test(part)) {
part = encodeURI(part).replace(/%5B/g, "[").replace(/%5D/g, "]");
}
return part;
})
.join("");
}
function encodeUnreserved(str) {
return encodeURIComponent(str).replace(/[!'()*]/g, function (c) {
return "%" + c.charCodeAt(0).toString(16).toUpperCase();
});
}
function encodeValue(operator, value, key) {
value =
operator === "+" || operator === "#"
? encodeReserved(value)
: encodeUnreserved(value);
if (key) {
return encodeUnreserved(key) + "=" + value;
}
else {
return value;
}
}
function isDefined(value) {
return value !== undefined && value !== null;
}
function isKeyOperator(operator) {
return operator === ";" || operator === "&" || operator === "?";
}
function getValues(context, operator, key, modifier) {
var value = context[key], result = [];
if (isDefined(value) && value !== "") {
if (typeof value === "string" ||
typeof value === "number" ||
typeof value === "boolean") {
value = value.toString();
if (modifier && modifier !== "*") {
value = value.substring(0, parseInt(modifier, 10));
}
result.push(encodeValue(operator, value, isKeyOperator(operator) ? key : ""));
}
else {
if (modifier === "*") {
if (Array.isArray(value)) {
value.filter(isDefined).forEach(function (value) {
result.push(encodeValue(operator, value, isKeyOperator(operator) ? key : ""));
});
}
else {
Object.keys(value).forEach(function (k) {
if (isDefined(value[k])) {
result.push(encodeValue(operator, value[k], k));
}
});
}
}
else {
const tmp = [];
if (Array.isArray(value)) {
value.filter(isDefined).forEach(function (value) {
tmp.push(encodeValue(operator, value));
});
}
else {
Object.keys(value).forEach(function (k) {
if (isDefined(value[k])) {
tmp.push(encodeUnreserved(k));
tmp.push(encodeValue(operator, value[k].toString()));
}
});
}
if (isKeyOperator(operator)) {
result.push(encodeUnreserved(key) + "=" + tmp.join(","));
}
else if (tmp.length !== 0) {
result.push(tmp.join(","));
}
}
}
}
else {
if (operator === ";") {
if (isDefined(value)) {
result.push(encodeUnreserved(key));
}
}
else if (value === "" && (operator === "&" || operator === "?")) {
result.push(encodeUnreserved(key) + "=");
}
else if (value === "") {
result.push("");
}
}
return result;
}
export function parseUrl(template) {
return {
expand: expand.bind(null, template),
};
}
function expand(template, context) {
var operators = ["+", "#", ".", "/", ";", "?", "&"];
return template.replace(/\{([^\{\}]+)\}|([^\{\}]+)/g, function (_, expression, literal) {
if (expression) {
let operator = "";
const values = [];
if (operators.indexOf(expression.charAt(0)) !== -1) {
operator = expression.charAt(0);
expression = expression.substr(1);
}
expression.split(/,/g).forEach(function (variable) {
var tmp = /([^:\*]*)(?::(\d+)|(\*))?/.exec(variable);
values.push(getValues(context, operator, tmp[1], tmp[2] || tmp[3]));
});
if (operator && operator !== "+") {
var separator = ",";
if (operator === "?") {
separator = "&";
}
else if (operator !== "#") {
separator = operator;
}
return (values.length !== 0 ? operator : "") + values.join(separator);
}
else {
return values.join(",");
}
}
else {
return encodeReserved(literal);
}
});
}