parser-combinator/build/lib/standard/markdown/title-parser.js

Parser combinators

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _index = require('../../parsec/index');

var _index2 = require('../../stream/index');

var _index3 = _interopRequireDefault(_index2);

var _token = require('./token');

var _token2 = _interopRequireDefault(_token);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function sharps() {
    return _index.C.char('#').rep().map(function (string) {
        return string.array().length;
    });
}

// a white is a sequence of at least one space, tab or non-breakable space
/**
 * Created by Simon on 14/12/2016.
 */
/*
 * This module try parse a title. The folowing will be recognised as titles:
 * "#foo\n"  "##foo\n"  "foo\n==="  "foo\n---"  "##########     foo     \n"
 *
 * Limits and axiomes
 * A \n in the markdown source ends the parsing of a title.  #foo\nbar  -> {title:foo},{text:bar}
 */
function white() {
    return _index.C.charIn(' \t\xA0').rep();
}

function equals() {
    return _index.C.string('===').then(_token2.default.rawTextUntil(_token2.default.eol())).then(_token2.default.eol()).thenReturns(1); // this mean a level 1 title
}

function minuses() {
    return _index.C.string('---').then(_token2.default.rawTextUntil(_token2.default.eol())).then(_token2.default.eol()).thenReturns(2); // this mean a level 2 title
}

function titleSharp() {
    return sharps().thenLeft(white()).then(_token2.default.rawTextUntil(_token2.default.eol())).thenLeft(_token2.default.eol().or(_index.F.eos)).map(function (array) {
        return {
            title: {
                level: array[0],
                text: array[1]
            }
        };
    });
}

function titleLine() {
    return _token2.default.blank().thenRight(_token2.default.rawTextUntilChar('\r\n').thenLeft(_token2.default.eol()).then(equals().or(minuses())).map(function (array) {
        return {
            title: {
                level: array[1],
                text: array[0]
            }
        };
    }));
}

function title() {
    return titleSharp().or(titleLine());
}

function parseTitle(line) {
    var offset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;

    return title().parse(_index3.default.ofString(line), offset);
}

exports.default = {
    titleLine: titleLine,
    titleSharp: titleSharp,
    title: title,
    parse: function parse(line) {
        return parseTitle(line, 0);
    }
};

/*  SHORTCOMINGS :
* Can not have formatted text in a title.  "##2*3*4 = 24\n" will display "2*3*4 = 24"
 */
//# sourceMappingURL=title-parser.js.map