SimenB/stylint

'use strict'

var zeroRe = /((border)|(outline))+(:|\s)+0(?!-)/
var noneRe = /((border)|(outline))+(:|\s)+(none)+(?!-)/


/**
 * @description checks for border none or outline none
 * @param {string} [line] curr line being linted
 * @return {boolean} true if none used, false if not
 */
var none = function( line ) {
    if ( line.indexOf( 'border' ) === -1 &&
        line.indexOf( 'outline' ) === -1 ) {
        return
    }

    // false if nothing wrong with line
    // true if problem found with line, regardless of config
    var badSyntax = false

    // return true if border|outline is followed by a 0
    // enforce use of none
    if ( this.state.conf === 'always' &&
            zeroRe.test( line ) &&
            !noneRe.test( line ) ) {
        badSyntax = true
        this.msg( 'none is preferred over 0', line.indexOf( '0' ) )
    }
    // return true if border|outline is followed by none
    // enforce use of 0
    else if ( this.state.conf === 'never' &&
        noneRe.test( line ) &&
        !zeroRe.test( line ) ) {
        badSyntax = true
        this.msg( '0 is preferred over none', line.indexOf( 'none' ) )
    }

    return badSyntax
}

module.exports = none