eslint-plugin-angular/rules/filter-name.js

ESLint rules for AngularJS projects

/**
 * require and specify a prefix for all filter names
 *
 * All your filters should have a name starting with the parameter you can define in your config object.
 * The second parameter can be a Regexp wrapped in quotes.
 * ("filter-name":  [2, "ng"])
 *
 * @version 0.1.0
 * @category naming
 */
'use strict';

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

module.exports = function(context) {
    return {

        CallExpression: function(node) {
            var prefix = context.options[0];
            var convertedPrefix; // convert string from JSON .eslintrc to regex;
            if (prefix === undefined) {
                return;
            }

            convertedPrefix = utils.convertPrefixToRegex(prefix);

            if (utils.isAngularFilterDeclaration(node)) {
                var name = node.arguments[0].value;

                if (name !== undefined && !convertedPrefix.test(name)) {
                    if (typeof prefix === 'string' && !utils.isStringRegexp(prefix)) {
                        context.report(node, 'The {{filter}} filter should be prefixed by {{prefix}}', {
                            filter: name,
                            prefix: prefix
                        });
                    } else {
                        context.report(node, 'The {{filter}} filter should follow this pattern: {{prefix}}', {
                            filter: name,
                            prefix: prefix.toString()
                        });
                    }
                }
            }
        }
    };
};