SimenB/stylint

'use strict'

/**
 * @description whitespace is the 1 tru god of stylus, set context based on that
 * @param {string} [line] curr line being linted
 * @returns {number} # of indents deep we are
*/
var setContext = function( line ) {
    var context = 0
    var indentPref = this.config.indentPref.expect || this.config.indentPref

    this.state.prevContext = this.state.context

    // no matter what our indentPref is,
    // try to get context as best as possible

    // get context if tabs
    if ( line.charAt( 0 ) === '\t' ) {
        context = /^\t+/.exec( line )[0].length
    }
    // get context if spaces
    else if ( line.charAt( 0 ) === ' ' ) {
        // set default if no indentPref set
        if ( typeof indentPref !== 'number' ) {
            indentPref = 2
        }

        context = /^\s+/.exec( line )[0].length / indentPref
    }

    return context
}

module.exports = setContext