stylint/src/core/setState.js

A linter for stylus

'use strict'

// super simple.
// if theres anything on the line besides whitespace, it aint empty
var emptyLineRe = /\S/


/**
 * @description sets values like context, determine whether we even run tests, etc
 * @param {string} [line] curr line being linted
 * @returns {Function | undefined} undefined if we catch something, else lint()
 */
var setState = function( line ) {
	this.state.context = this.setContext( this.cache.line )

	// ignore the current line if @stylint ignore
	if ( this.cache.origLine.indexOf( '@stylint ignore' ) !== -1 ) {
		return
	}

	// if @stylint on / off commands found in the code
	if ( this.stylintOn( this.cache.origLine ) ||
		this.stylintOff( this.cache.origLine ) === false ) {
		return
	}

	// if hash starting / ending, set state and return early
	if ( this.hashOrCSSStart( line ) ||
		this.hashOrCSSEnd( line ) === false ) {
		return
	}

	// if starting / ending keyframes
	if ( this.keyframesStart( line ) ||
		this.keyframesEnd( line ) === false ) {
		return
	}

	// if starting / ending css4 :root
	// we'll need to capture custom properties
	if ( this.rootStart( line ) ||
		this.rootEnd( line ) === false ) {
		return
	}

	// if entire line is comment, just check comment spacing and that's it
	if ( this.startsWithComment( line ) ) {
		if ( typeof this.config.commentSpace !== 'undefined' ) {
			this.state.conf = this.config.commentSpace.expect || this.config.commentSpace
			this.state.severity = this.config.commentSpace.error ? 'Error' : 'Warning'
			this.lintMethods.commentSpace.call( this, this.cache.line, this.cache.origLine )
		}
		return
	}

	// if empty line
	if ( emptyLineRe.test( line ) === false ) {
		this.cache.sortOrderCache = []
		return
	}

	// actually run tests if we made it this far
	if ( this.state.testsEnabled === true ) {
		return this.lint()
	}
}

module.exports = setState