/**
 * Created by Estevao on 12-01-2015.
 */

/**
 *
 */
showdown.subParser('paragraphs', function (text, options, globals) {
    'use strict';

    // Strip leading and trailing lines:
    text = text.replace(/^\n+/g, '');
    text = text.replace(/\n+$/g, '');

    var grafs = text.split(/\n{2,}/g),
        grafsOut = [];

    /** Wrap <p> tags. */
    var end = grafs.length;
    for (var i = 0; i < end; i++) {
        var str = grafs[i];

        // if this is an HTML marker, copy it
        if (str.search(/~K(\d+)K/g) >= 0) {
            grafsOut.push(str);
        }
        else if (str.search(/\S/) >= 0) {
            str = showdown.subParser('spanGamut')(str, options, globals);
            str = str.replace(/^([ \t]*)/g, '<p>');
            str += '</p>';
            grafsOut.push(str);
        }
    }

    /** Unhashify HTML blocks */
    end = grafsOut.length;
    for (i = 0; i < end; i++) {
        // if this is a marker for an html block...
        while (grafsOut[i].search(/~K(\d+)K/) >= 0) {
            var blockText = globals.gHtmlBlocks[RegExp.$1];
            blockText = blockText.replace(/\$/g, '$$$$'); // Escape any dollar signs
            grafsOut[i] = grafsOut[i].replace(/~K\d+K/, blockText);
        }
    }

    return grafsOut.join('\n\n');
});