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/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
"use strict";

var SourceNode = require("source-map").SourceNode;
var SourceMapConsumer = require("source-map").SourceMapConsumer;
var SourceListMap = require("source-list-map").SourceListMap;
var Source = require("./Source");

var SPLIT_REGEX = /(?!$)[^\n\r;{}]*[\n\r;{}]*/g;

function _splitCode(code) {
	return code.match(SPLIT_REGEX) || [];
}

class OriginalSource extends Source {
	constructor(value, name) {
		super();
		this._value = value;
		this._name = name;
	}

	source() {
		return this._value;
	}

	node(options) {
		options = options || {};
		var sourceMap = this._sourceMap;
		var value = this._value;
		var name = this._name;
		var lines = value.split("\n");
		var node = new SourceNode(null, null, null,
			lines.map(function(line, idx) {
				var pos = 0;
				if(options.columns === false) {
					var content = line + (idx != lines.length - 1 ? "\n" : "");
					return new SourceNode(idx + 1, 0, name, content);
				}
				return new SourceNode(null, null, null,
					_splitCode(line + (idx != lines.length - 1 ? "\n" : "")).map(function(item) {
						if(/^\s*$/.test(item)) {
							pos += item.length;
							return item;
						}
						var res = new SourceNode(idx + 1, pos, name, item);
						pos += item.length;
						return res;
					})
				);
			})
		);
		node.setSourceContent(name, value);
		return node;
	}

	listMap(options) {
		return new SourceListMap(this._value, this._name, this._value)
	}

	updateHash(hash) {
		hash.update(this._value);
	}
}

require("./SourceAndMapMixin")(OriginalSource.prototype);

module.exports = OriginalSource;