410 lines
15 KiB
JavaScript
410 lines
15 KiB
JavaScript
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.pathToRegexp = exports.tokensToRegexp = exports.regexpToFunction = exports.match = exports.tokensToFunction = exports.compile = exports.parse = void 0;
|
|
/**
|
|
* Tokenize input string.
|
|
*/
|
|
function lexer(str) {
|
|
var tokens = [];
|
|
var i = 0;
|
|
while (i < str.length) {
|
|
var char = str[i];
|
|
if (char === "*" || char === "+" || char === "?") {
|
|
tokens.push({ type: "MODIFIER", index: i, value: str[i++] });
|
|
continue;
|
|
}
|
|
if (char === "\\") {
|
|
tokens.push({ type: "ESCAPED_CHAR", index: i++, value: str[i++] });
|
|
continue;
|
|
}
|
|
if (char === "{") {
|
|
tokens.push({ type: "OPEN", index: i, value: str[i++] });
|
|
continue;
|
|
}
|
|
if (char === "}") {
|
|
tokens.push({ type: "CLOSE", index: i, value: str[i++] });
|
|
continue;
|
|
}
|
|
if (char === ":") {
|
|
var name = "";
|
|
var j = i + 1;
|
|
while (j < str.length) {
|
|
var code = str.charCodeAt(j);
|
|
if (
|
|
// `0-9`
|
|
(code >= 48 && code <= 57) ||
|
|
// `A-Z`
|
|
(code >= 65 && code <= 90) ||
|
|
// `a-z`
|
|
(code >= 97 && code <= 122) ||
|
|
// `_`
|
|
code === 95) {
|
|
name += str[j++];
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
if (!name)
|
|
throw new TypeError("Missing parameter name at ".concat(i));
|
|
tokens.push({ type: "NAME", index: i, value: name });
|
|
i = j;
|
|
continue;
|
|
}
|
|
if (char === "(") {
|
|
var count = 1;
|
|
var pattern = "";
|
|
var j = i + 1;
|
|
if (str[j] === "?") {
|
|
throw new TypeError("Pattern cannot start with \"?\" at ".concat(j));
|
|
}
|
|
while (j < str.length) {
|
|
if (str[j] === "\\") {
|
|
pattern += str[j++] + str[j++];
|
|
continue;
|
|
}
|
|
if (str[j] === ")") {
|
|
count--;
|
|
if (count === 0) {
|
|
j++;
|
|
break;
|
|
}
|
|
}
|
|
else if (str[j] === "(") {
|
|
count++;
|
|
if (str[j + 1] !== "?") {
|
|
throw new TypeError("Capturing groups are not allowed at ".concat(j));
|
|
}
|
|
}
|
|
pattern += str[j++];
|
|
}
|
|
if (count)
|
|
throw new TypeError("Unbalanced pattern at ".concat(i));
|
|
if (!pattern)
|
|
throw new TypeError("Missing pattern at ".concat(i));
|
|
tokens.push({ type: "PATTERN", index: i, value: pattern });
|
|
i = j;
|
|
continue;
|
|
}
|
|
tokens.push({ type: "CHAR", index: i, value: str[i++] });
|
|
}
|
|
tokens.push({ type: "END", index: i, value: "" });
|
|
return tokens;
|
|
}
|
|
/**
|
|
* Parse a string for the raw tokens.
|
|
*/
|
|
function parse(str, options) {
|
|
if (options === void 0) { options = {}; }
|
|
var tokens = lexer(str);
|
|
var _a = options.prefixes, prefixes = _a === void 0 ? "./" : _a;
|
|
var defaultPattern = "[^".concat(escapeString(options.delimiter || "/#?"), "]+?");
|
|
var result = [];
|
|
var key = 0;
|
|
var i = 0;
|
|
var path = "";
|
|
var tryConsume = function (type) {
|
|
if (i < tokens.length && tokens[i].type === type)
|
|
return tokens[i++].value;
|
|
};
|
|
var mustConsume = function (type) {
|
|
var value = tryConsume(type);
|
|
if (value !== undefined)
|
|
return value;
|
|
var _a = tokens[i], nextType = _a.type, index = _a.index;
|
|
throw new TypeError("Unexpected ".concat(nextType, " at ").concat(index, ", expected ").concat(type));
|
|
};
|
|
var consumeText = function () {
|
|
var result = "";
|
|
var value;
|
|
while ((value = tryConsume("CHAR") || tryConsume("ESCAPED_CHAR"))) {
|
|
result += value;
|
|
}
|
|
return result;
|
|
};
|
|
while (i < tokens.length) {
|
|
var char = tryConsume("CHAR");
|
|
var name = tryConsume("NAME");
|
|
var pattern = tryConsume("PATTERN");
|
|
if (name || pattern) {
|
|
var prefix = char || "";
|
|
if (prefixes.indexOf(prefix) === -1) {
|
|
path += prefix;
|
|
prefix = "";
|
|
}
|
|
if (path) {
|
|
result.push(path);
|
|
path = "";
|
|
}
|
|
result.push({
|
|
name: name || key++,
|
|
prefix: prefix,
|
|
suffix: "",
|
|
pattern: pattern || defaultPattern,
|
|
modifier: tryConsume("MODIFIER") || "",
|
|
});
|
|
continue;
|
|
}
|
|
var value = char || tryConsume("ESCAPED_CHAR");
|
|
if (value) {
|
|
path += value;
|
|
continue;
|
|
}
|
|
if (path) {
|
|
result.push(path);
|
|
path = "";
|
|
}
|
|
var open = tryConsume("OPEN");
|
|
if (open) {
|
|
var prefix = consumeText();
|
|
var name_1 = tryConsume("NAME") || "";
|
|
var pattern_1 = tryConsume("PATTERN") || "";
|
|
var suffix = consumeText();
|
|
mustConsume("CLOSE");
|
|
result.push({
|
|
name: name_1 || (pattern_1 ? key++ : ""),
|
|
pattern: name_1 && !pattern_1 ? defaultPattern : pattern_1,
|
|
prefix: prefix,
|
|
suffix: suffix,
|
|
modifier: tryConsume("MODIFIER") || "",
|
|
});
|
|
continue;
|
|
}
|
|
mustConsume("END");
|
|
}
|
|
return result;
|
|
}
|
|
exports.parse = parse;
|
|
/**
|
|
* Compile a string to a template function for the path.
|
|
*/
|
|
function compile(str, options) {
|
|
return tokensToFunction(parse(str, options), options);
|
|
}
|
|
exports.compile = compile;
|
|
/**
|
|
* Expose a method for transforming tokens into the path function.
|
|
*/
|
|
function tokensToFunction(tokens, options) {
|
|
if (options === void 0) { options = {}; }
|
|
var reFlags = flags(options);
|
|
var _a = options.encode, encode = _a === void 0 ? function (x) { return x; } : _a, _b = options.validate, validate = _b === void 0 ? true : _b;
|
|
// Compile all the tokens into regexps.
|
|
var matches = tokens.map(function (token) {
|
|
if (typeof token === "object") {
|
|
return new RegExp("^(?:".concat(token.pattern, ")$"), reFlags);
|
|
}
|
|
});
|
|
return function (data) {
|
|
var path = "";
|
|
for (var i = 0; i < tokens.length; i++) {
|
|
var token = tokens[i];
|
|
if (typeof token === "string") {
|
|
path += token;
|
|
continue;
|
|
}
|
|
var value = data ? data[token.name] : undefined;
|
|
var optional = token.modifier === "?" || token.modifier === "*";
|
|
var repeat = token.modifier === "*" || token.modifier === "+";
|
|
if (Array.isArray(value)) {
|
|
if (!repeat) {
|
|
throw new TypeError("Expected \"".concat(token.name, "\" to not repeat, but got an array"));
|
|
}
|
|
if (value.length === 0) {
|
|
if (optional)
|
|
continue;
|
|
throw new TypeError("Expected \"".concat(token.name, "\" to not be empty"));
|
|
}
|
|
for (var j = 0; j < value.length; j++) {
|
|
var segment = encode(value[j], token);
|
|
if (validate && !matches[i].test(segment)) {
|
|
throw new TypeError("Expected all \"".concat(token.name, "\" to match \"").concat(token.pattern, "\", but got \"").concat(segment, "\""));
|
|
}
|
|
path += token.prefix + segment + token.suffix;
|
|
}
|
|
continue;
|
|
}
|
|
if (typeof value === "string" || typeof value === "number") {
|
|
var segment = encode(String(value), token);
|
|
if (validate && !matches[i].test(segment)) {
|
|
throw new TypeError("Expected \"".concat(token.name, "\" to match \"").concat(token.pattern, "\", but got \"").concat(segment, "\""));
|
|
}
|
|
path += token.prefix + segment + token.suffix;
|
|
continue;
|
|
}
|
|
if (optional)
|
|
continue;
|
|
var typeOfMessage = repeat ? "an array" : "a string";
|
|
throw new TypeError("Expected \"".concat(token.name, "\" to be ").concat(typeOfMessage));
|
|
}
|
|
return path;
|
|
};
|
|
}
|
|
exports.tokensToFunction = tokensToFunction;
|
|
/**
|
|
* Create path match function from `path-to-regexp` spec.
|
|
*/
|
|
function match(str, options) {
|
|
var keys = [];
|
|
var re = pathToRegexp(str, keys, options);
|
|
return regexpToFunction(re, keys, options);
|
|
}
|
|
exports.match = match;
|
|
/**
|
|
* Create a path match function from `path-to-regexp` output.
|
|
*/
|
|
function regexpToFunction(re, keys, options) {
|
|
if (options === void 0) { options = {}; }
|
|
var _a = options.decode, decode = _a === void 0 ? function (x) { return x; } : _a;
|
|
return function (pathname) {
|
|
var m = re.exec(pathname);
|
|
if (!m)
|
|
return false;
|
|
var path = m[0], index = m.index;
|
|
var params = Object.create(null);
|
|
var _loop_1 = function (i) {
|
|
if (m[i] === undefined)
|
|
return "continue";
|
|
var key = keys[i - 1];
|
|
if (key.modifier === "*" || key.modifier === "+") {
|
|
params[key.name] = m[i].split(key.prefix + key.suffix).map(function (value) {
|
|
return decode(value, key);
|
|
});
|
|
}
|
|
else {
|
|
params[key.name] = decode(m[i], key);
|
|
}
|
|
};
|
|
for (var i = 1; i < m.length; i++) {
|
|
_loop_1(i);
|
|
}
|
|
return { path: path, index: index, params: params };
|
|
};
|
|
}
|
|
exports.regexpToFunction = regexpToFunction;
|
|
/**
|
|
* Escape a regular expression string.
|
|
*/
|
|
function escapeString(str) {
|
|
return str.replace(/([.+*?=^!:${}()[\]|/\\])/g, "\\$1");
|
|
}
|
|
/**
|
|
* Get the flags for a regexp from the options.
|
|
*/
|
|
function flags(options) {
|
|
return options && options.sensitive ? "" : "i";
|
|
}
|
|
/**
|
|
* Pull out keys from a regexp.
|
|
*/
|
|
function regexpToRegexp(path, keys) {
|
|
if (!keys)
|
|
return path;
|
|
var groupsRegex = /\((?:\?<(.*?)>)?(?!\?)/g;
|
|
var index = 0;
|
|
var execResult = groupsRegex.exec(path.source);
|
|
while (execResult) {
|
|
keys.push({
|
|
// Use parenthesized substring match if available, index otherwise
|
|
name: execResult[1] || index++,
|
|
prefix: "",
|
|
suffix: "",
|
|
modifier: "",
|
|
pattern: "",
|
|
});
|
|
execResult = groupsRegex.exec(path.source);
|
|
}
|
|
return path;
|
|
}
|
|
/**
|
|
* Transform an array into a regexp.
|
|
*/
|
|
function arrayToRegexp(paths, keys, options) {
|
|
var parts = paths.map(function (path) { return pathToRegexp(path, keys, options).source; });
|
|
return new RegExp("(?:".concat(parts.join("|"), ")"), flags(options));
|
|
}
|
|
/**
|
|
* Create a path regexp from string input.
|
|
*/
|
|
function stringToRegexp(path, keys, options) {
|
|
return tokensToRegexp(parse(path, options), keys, options);
|
|
}
|
|
/**
|
|
* Expose a function for taking tokens and returning a RegExp.
|
|
*/
|
|
function tokensToRegexp(tokens, keys, options) {
|
|
if (options === void 0) { options = {}; }
|
|
var _a = options.strict, strict = _a === void 0 ? false : _a, _b = options.start, start = _b === void 0 ? true : _b, _c = options.end, end = _c === void 0 ? true : _c, _d = options.encode, encode = _d === void 0 ? function (x) { return x; } : _d, _e = options.delimiter, delimiter = _e === void 0 ? "/#?" : _e, _f = options.endsWith, endsWith = _f === void 0 ? "" : _f;
|
|
var endsWithRe = "[".concat(escapeString(endsWith), "]|$");
|
|
var delimiterRe = "[".concat(escapeString(delimiter), "]");
|
|
var route = start ? "^" : "";
|
|
// Iterate over the tokens and create our regexp string.
|
|
for (var _i = 0, tokens_1 = tokens; _i < tokens_1.length; _i++) {
|
|
var token = tokens_1[_i];
|
|
if (typeof token === "string") {
|
|
route += escapeString(encode(token));
|
|
}
|
|
else {
|
|
var prefix = escapeString(encode(token.prefix));
|
|
var suffix = escapeString(encode(token.suffix));
|
|
if (token.pattern) {
|
|
if (keys)
|
|
keys.push(token);
|
|
if (prefix || suffix) {
|
|
if (token.modifier === "+" || token.modifier === "*") {
|
|
var mod = token.modifier === "*" ? "?" : "";
|
|
route += "(?:".concat(prefix, "((?:").concat(token.pattern, ")(?:").concat(suffix).concat(prefix, "(?:").concat(token.pattern, "))*)").concat(suffix, ")").concat(mod);
|
|
}
|
|
else {
|
|
route += "(?:".concat(prefix, "(").concat(token.pattern, ")").concat(suffix, ")").concat(token.modifier);
|
|
}
|
|
}
|
|
else {
|
|
if (token.modifier === "+" || token.modifier === "*") {
|
|
route += "((?:".concat(token.pattern, ")").concat(token.modifier, ")");
|
|
}
|
|
else {
|
|
route += "(".concat(token.pattern, ")").concat(token.modifier);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
route += "(?:".concat(prefix).concat(suffix, ")").concat(token.modifier);
|
|
}
|
|
}
|
|
}
|
|
if (end) {
|
|
if (!strict)
|
|
route += "".concat(delimiterRe, "?");
|
|
route += !options.endsWith ? "$" : "(?=".concat(endsWithRe, ")");
|
|
}
|
|
else {
|
|
var endToken = tokens[tokens.length - 1];
|
|
var isEndDelimited = typeof endToken === "string"
|
|
? delimiterRe.indexOf(endToken[endToken.length - 1]) > -1
|
|
: endToken === undefined;
|
|
if (!strict) {
|
|
route += "(?:".concat(delimiterRe, "(?=").concat(endsWithRe, "))?");
|
|
}
|
|
if (!isEndDelimited) {
|
|
route += "(?=".concat(delimiterRe, "|").concat(endsWithRe, ")");
|
|
}
|
|
}
|
|
return new RegExp(route, flags(options));
|
|
}
|
|
exports.tokensToRegexp = tokensToRegexp;
|
|
/**
|
|
* Normalize the given path string, returning a regular expression.
|
|
*
|
|
* An empty array can be passed in for the keys, which will hold the
|
|
* placeholder key descriptions. For example, using `/user/:id`, `keys` will
|
|
* contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
|
|
*/
|
|
function pathToRegexp(path, keys, options) {
|
|
if (path instanceof RegExp)
|
|
return regexpToRegexp(path, keys);
|
|
if (Array.isArray(path))
|
|
return arrayToRegexp(path, keys, options);
|
|
return stringToRegexp(path, keys, options);
|
|
}
|
|
exports.pathToRegexp = pathToRegexp;
|
|
//# sourceMappingURL=index.js.map
|