stylint/src/checks/checkNamingConvention.js

A linter for stylus

'use strict';

var
    cssCheck = /^[$#.]+/, // we dont care about default css names, only look at vars, classes, ids, etc
    camel = /^[$.#]+[a-zA-Z][a-z]+(?!_?!-)([.A-Z0-9]+[a-z =]+)+\b/, // camelCase or CamelCase
    dash = /^[$.#]+[a-z]+(?!_)(-[.a-z]+)*\b/, // lower-case-dashes-only
    score = /^[$.#]+[a-z]+(?!-)(_[.a-z]+)*\b/; // lower_case_underscores_only

/**
 * check for names-like-this vs namesLikeThis or NamesLikeThis vs names_like_this
 * @param {string} [line] the line to be tested
 * @param {string} [convention] the naming convention to test againt. can be 'camelCase'|'underscore'|'dash'
 * @returns true, false, or undefined true if convention correct, false if not, undefined if line not testable
 */
module.exports = function checkNamingConvention( line, convention ) {
    if ( typeof line !== 'string' || typeof convention === 'undefined' ) { return; }

    // only run checks if on a class, id, or variable
    if ( cssCheck.test( line ) ) {
        if ( convention === 'camelCase' ) {
            if ( camel.test( line ) && !dash.test( line ) && !score.test( line ) ) {
                return true;
            }
            else {
                return false;
            }
        }
        else if ( convention === 'lowercase_underscore' ) {
            if ( score.test( line ) ) {
                return true;
            }
            else {
                return false;
            }
        }
        else if ( convention === 'lowercase-dash' ) {
            if ( dash.test( line ) ) {
                return true;
            }
            else {
                return false;
            }
        }
    }
}