jscs/lib/rules/disallow-multiple-line-breaks.js

JavaScript Style Checker

var assert = require('assert');

module.exports = function() {};

module.exports.prototype = {

    configure: function(disallowMultipleLineBreaks) {
        assert(
            typeof disallowMultipleLineBreaks === 'boolean',
            'disallowMultipleLineBreaks option requires boolean value'
        );
        assert(
            disallowMultipleLineBreaks === true,
            'disallowMultipleLineBreaks option requires true value or should be removed'
        );
    },

    getOptionName: function () {
        return 'disallowMultipleLineBreaks';
    },

    check: function(file, errors) {
        var lines = file.getLines();
        for (var i = 1, l = lines.length; i < l; i++) {
            var line = lines[i];
            if (line === '' && lines[i - 1] === '') {
                while (++i < l && lines[i] === '') {}
                errors.add('Multiple line break', i - 1, 0);
            }
        }
    }

};