@oat-sa/tao-item-runner-qti/src/qtiCommonRenderer/helpers/PciPrettyPrint.js

TAO QTI Item Runner modules

/**
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2015 (original work) Open Assessment Technologies SA ;
 */
import _ from 'lodash';

var _formatters = {
    boolean: function (value) {
        return value ? 'true' : 'false';
    },
    integer: function (value) {
        return value;
    },
    float: function (value) {
        return value;
    },
    string: function (value) {
        return value === '' ? 'NULL' : '"' + value + '"';
    },
    point: function (value) {
        return '[' + value[0] + ', ' + value[1] + ']';
    },
    pair: function (value) {
        return '[' + value[0] + ', ' + value[1] + ']';
    },
    directedPair: function (value) {
        return '[' + value[0] + ', ' + value[1] + ']';
    },
    duration: function (value) {
        return value;
    },
    file: function (value) {
        return 'binary data';
    },
    uri: function (value) {
        return value;
    },
    intOrIdentifier: function (value) {
        return value;
    },
    identifier: function (value) {
        return value;
    }
};

/**
 * Return the pretty print string for a qti base variable
 *
 * @param {type} value
 * @param {type} withType - the qti baseType
 * @returns {String}
 */
function printBase(value, withType) {
    var print = '',
        base = value.base;

    withType = typeof withType !== 'undefined' ? withType : true;

    if (base) {
        _.forIn(_formatters, function (formatter, baseType) {
            if (base[baseType] !== undefined) {
                print += withType ? '(' + baseType + ') ' : '';
                print += formatter(base[baseType]);

                return false;
            }
        });

        return print;
    }
}

/**
 * Return the pretty print string for a qti list variable
 *
 * @param {object} value
 * @param {string} withType - the qti basetype of the list
 * @returns {string}
 */
function printList(value, withType) {
    var print = '',
        list = value.list;

    withType = typeof withType !== 'undefined' ? withType : true;

    if (list) {
        _.forIn(_formatters, function (formatter, baseType) {
            if (list[baseType] !== undefined) {
                print += withType ? '(' + baseType + ') ' : '';

                print += '[';

                _.forEach(list[baseType], function (value) {
                    print += formatter(value) + ', ';
                });

                if (_.size(list[baseType])) {
                    print = print.substring(0, print.length - 2);
                }

                print += ']';

                return false;
            }
        });

        return print;
    }
}

/**
 * Return the pretty print string for a qti record variable
 *
 * @param {object} value
 * @returns {String}
 */
function printRecord(value) {
    if (value && value.record) {
        return '(record) ' + JSON.stringify(value.record);
    }
    return '';
}

export default {
    printBase: printBase,
    printList: printList,
    printRecord: printRecord
};