swordjs/scripts/verseKey.js

swordjs - access modules from crosswire.org/sword in JS

'use strict';
var versificationMgr = require("./versificationMgr");
var bcvParser = require("../libs/bcv/js/en_bcv_parser.min.js");
var bcv = new bcvParser.bcv_parser();

function parseVkey(inVKey, inV11n) {
    var key = {};
    key.osisRef = bcv.parse(inVKey).osis();
    if (key.osisRef === "") {
        //bcv.parse().osis() returns "" for passages it cannot resolve
        key.osisRef = "Matt.1"; //bcv.parse(inVKey + " 1").osis();
    }
    var split = key.osisRef.split("-")[0].split(".");

    key.book = split[0];
    key.chapter = (isNaN(parseInt(split[1], 10))) ? 1 : parseInt(split[1], 10);
    key.verse = parseInt(split[2], 10);
    key.bookNum = versificationMgr.getBookNum(key.book, inV11n);
    //console.log(key, key.osisRef, split);
    return key;
}

function parseVerseList(inVKey, inV11n) {
    var verseList = [],
        key = inVKey;
    if (typeof inVKey === "string")
        key = parseVkey(inVKey);

    //Check if we have a passage range like John.3.10-John.3.16 or Gen.3-Gen.4
    if (key.osisRef.search("-") !== -1) {
        var singlePassages = key.osisRef.split("-"),
            start = singlePassages[0].split("."),
            end = singlePassages[1].split(".");

        if(!isNaN(key.verse) && end.length === 3) {
            for (var z=key.verse;z<parseInt(end[2], 10)+1; z++) {
                verseList.push({osis: key.book+"."+key.chapter+"."+(z), book: key.book, bookNum: bookNum, chapter: key.chapter, verse: z});
            }
        }
    //check if we have a passage like Mt 3 or Ps 123
    } else if (isNaN(key.verse)) {
        var bookNum = versificationMgr.getBookNum(key.book);
        var verseMax = versificationMgr.getVersesInChapter(bookNum, key.chapter, inV11n);
        for (var i=0;i<verseMax; i++) {
            verseList.push({osis: key.book+"."+key.chapter+"."+(i+1), book: key.book, bookNum: bookNum, chapter: key.chapter, verse: i+1});
        }
    } else {
        verseList.push(key);
    }

    return verseList;
}

function next(inVKey, inV11n) {
    var key = parseVkey(inVKey, inV11n),
        maxChapter = versificationMgr.getChapterMax(key.bookNum, inV11n);

    if (key.chapter < maxChapter) {
        key.chapter++;
    } else {
        key.bookNum = (key.bookNum < 65) ? ++key.bookNum : 65;
        key.chapter = (key.bookNum < 65) ? 1 : maxChapter;
        key.book = versificationMgr.getBook(key.bookNum, inV11n).abbrev;
    }
    key.osisRef = key.book+"."+key.chapter;

    return key;
}

function previous(inVKey, inV11n) {
    var key = parseVkey(inVKey, inV11n),
        maxChapter = versificationMgr.getChapterMax(key.bookNum-1, inV11n);

    if (key.chapter > 1) {
        --key.chapter;
    } else {
        key.chapter = (key.bookNum === 0) ? 1 : maxChapter;
        key.bookNum = (key.bookNum > 0) ? --key.bookNum : 0;
        key.book = versificationMgr.getBook(key.bookNum, inV11n).abbrev;
    }
    key.osisRef = key.book+"."+key.chapter;

    return key;
}

var verseKey = {
    parse: parseVkey,
    parseVerseList: parseVerseList,
    next: next,
    previous: previous
};

module.exports = verseKey;