packages/gitbook-asciidoc/lib/summary.js


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var _ = require('lodash');
var cheerio = require('cheerio');

var convert = require('./utils/convert');


// parse a ul list and return list of chapters recursvely
function parseList($ul, $) {
    var articles = [];

    $ul.children("li").each(function() {
        var article = {};

        var $li = $(this);
        var $p = $li.children("p");

        article.title = $p.text();

        // Parse link
        var $a = $p.children("a");
        if ($a.length > 0) {
            article.title = $a.first().text();
            article.path = $a.attr("href").replace(/\\/g, '/').replace(/^\/+/, '')
        }

        // Sub articles
        var $sub = $li.children(".olist").children("ol");
        article.articles = parseList($sub, $);

        articles.push(article);
    });

    return articles;
}

function parseSummary(src) {
    var chapters = parseEntries(src);

    return {
        chapters: chapters
    };
}

function parseEntries (src) {
    var html = convert(src);
    var $ = cheerio.load(html);

    var chapters = parseList($("ol").first(), $);
    return chapters;
}

function summaryToText(summary) {
    var bl = "\n";
    var content = "= Summary"+bl+bl;

    var _base = function(article) {
        if (article.path) {
            return "link:"+article.path+"["+article.title+"]";
        } else {
            return article.title;
        }
    };

    var convertArticle = function(article, d) {
        content = content + Array(d+2).join(".") + " " + _base(article)+bl;
        _.each(article.articles, function(_article) {
            convertArticle(_article, d + 1);
        });
    };

    _.each(summary.chapters, function(chapter) {
        convertArticle(chapter, 0);
    });

    content = content+bl;

    return content;
};


module.exports = parseSummary;
module.exports.entries = parseEntries;
module.exports.toText = summaryToText;