'use strict';

var exports = module.exports = {};

// start build pattern: <!-- build:[target] output -->
// $1 is the type, $2 is the alternate search path, $3 is the destination file name $4 extra attributes
exports.regbuild = /(?:<!--|\/\/-)\s*build:(\w+)(?:\(([^)]+)\))?\s*([^\s]+(?=-->)|[^\s]+)?\s*(?:(.*))?\s*-->/;

// end build pattern -- <!-- endbuild -->
exports.regend = /(?:<!--|\/\/-)\s*endbuild\s*-->/;

// IE conditional comment pattern: $1 is the start tag and $2 is the end tag
exports.regcc = /(<!--\[if\s.*?\]>)[\s\S]*?(<!\[endif\]-->)/i;

// Character used to create key for the `sections` object. This should probably be done more elegantly.
exports.sectionsJoinChar = '\ue000';

// strip all comments from HTML except for conditionals
exports.regComment = /<!--(?!\s*(?:\[if [^\]]+]|<!|>))(?:(?!-->)(.|\n))*-->/g;