parser-combinator
Version:
Parser combinators
235 lines (185 loc) • 10.4 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); /*
* Parsec
* https://github.com/d-plaindoux/parsec
*
* Copyright (c) 2016 Didier Plaindoux
* Licensed under the LGPL2 license.
*/
var _response = require('../parsec/response');
var _response2 = _interopRequireDefault(_response);
var _option = require('../data/option');
var _option2 = _interopRequireDefault(_option);
var _flowBundle = require('../parsec/flow-bundle');
var _flowBundle2 = _interopRequireDefault(_flowBundle);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var Token = function () {
function Token() {
_classCallCheck(this, Token);
}
_createClass(Token, [{
key: 'keyword',
value: function keyword() {
return _option2.default.none();
}
}, {
key: 'ident',
value: function ident() {
return _option2.default.none();
}
}, {
key: 'number',
value: function number() {
return _option2.default.none();
}
}, {
key: 'string',
value: function string() {
return _option2.default.none();
}
}, {
key: 'char',
value: function char() {
return _option2.default.none();
}
}]);
return Token;
}();
var TKKeyword = function (_Token) {
_inherits(TKKeyword, _Token);
function TKKeyword(value) {
_classCallCheck(this, TKKeyword);
var _this = _possibleConstructorReturn(this, (TKKeyword.__proto__ || Object.getPrototypeOf(TKKeyword)).call(this));
_this.value = value;
return _this;
}
_createClass(TKKeyword, [{
key: 'keyword',
value: function keyword() {
return _option2.default.some(this.value);
}
}]);
return TKKeyword;
}(Token);
var TKIdent = function (_Token2) {
_inherits(TKIdent, _Token2);
function TKIdent(value) {
_classCallCheck(this, TKIdent);
var _this2 = _possibleConstructorReturn(this, (TKIdent.__proto__ || Object.getPrototypeOf(TKIdent)).call(this));
_this2.value = value;
return _this2;
}
_createClass(TKIdent, [{
key: 'ident',
value: function ident() {
return _option2.default.some(this.value);
}
}]);
return TKIdent;
}(Token);
var TKNumber = function (_Token3) {
_inherits(TKNumber, _Token3);
function TKNumber(value) {
_classCallCheck(this, TKNumber);
var _this3 = _possibleConstructorReturn(this, (TKNumber.__proto__ || Object.getPrototypeOf(TKNumber)).call(this));
_this3.value = value;
return _this3;
}
_createClass(TKNumber, [{
key: 'number',
value: function number() {
return _option2.default.some(this.value);
}
}]);
return TKNumber;
}(Token);
var TKString = function (_Token4) {
_inherits(TKString, _Token4);
function TKString(value) {
_classCallCheck(this, TKString);
var _this4 = _possibleConstructorReturn(this, (TKString.__proto__ || Object.getPrototypeOf(TKString)).call(this));
_this4.value = value;
return _this4;
}
_createClass(TKString, [{
key: 'string',
value: function string() {
return _option2.default.some(this.value);
}
}]);
return TKString;
}(Token);
var TKChar = function (_Token5) {
_inherits(TKChar, _Token5);
function TKChar(value) {
_classCallCheck(this, TKChar);
var _this5 = _possibleConstructorReturn(this, (TKChar.__proto__ || Object.getPrototypeOf(TKChar)).call(this));
_this5.value = value;
return _this5;
}
_createClass(TKChar, [{
key: 'char',
value: function char() {
return _option2.default.some(this.value);
}
}]);
return TKChar;
}(Token);
// (Token -> Option 'a) -> Parser 'a Token
function literal(tokenise) {
return _flowBundle2.default.parse(function (input, index) {
return input.get(index).map(function (value) {
return tokenise(value).map(function (token) {
return _response2.default.accept(token, input, index + 1, true);
}).orLazyElse(function () {
return _response2.default.reject(input.location(index), false);
});
}).lazyRecoverWith(function () {
return _response2.default.reject(input.location(index), false);
});
});
}
var token = {
builder: {
keyword: function keyword(value) {
return new TKKeyword(value);
},
ident: function ident(value) {
return new TKIdent(value);
},
number: function number(value) {
return new TKNumber(value);
},
string: function string(value) {
return new TKString(value);
},
char: function char(value) {
return new TKChar(value);
}
},
parser: {
keyword: literal(function (token) {
return token.keyword();
}),
ident: literal(function (token) {
return token.ident();
}),
number: literal(function (token) {
return token.number();
}),
string: literal(function (token) {
return token.string();
}),
char: literal(function (token) {
return token.char();
})
}
};
exports.default = token;
//# sourceMappingURL=token.js.map