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GM_config_lz-string

Refactor GM_config, this version uses lz-string to access data for a Library script

当前为 2018-10-01 提交的版本，查看 最新版本。

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.icu/scripts/372760/633316/GM_config_lz-string.js 

// ==UserScript==
// @namespace     http://tampermonkey.net/
// @exclude       *

// ==UserLibrary==
// @name          GM_config_lz-string
// @description   Refactor GM_config, this version uses lz-string to access data for a Library script
// @author        avan
// @license       MIT
// @version       0.1

// ==/UserScript==

// ==/UserLibrary==

GM_configStruct.prototype.read = function (store) {
	var rval, cKey, dValue;
	try {
	    cKey = LZString.compressToUTF16(store || this.id);
		dValue = LZString.decompressFromUTF16(this.getValue(cKey, '{}'));
		rval = this.parser(dValue);
	} catch(e) {
		this.log("GM_config failed to read saved settings!");
		rval = {};
	}
	return rval;
};

GM_configStruct.prototype.write = function (store, obj) {
	if (!obj) {
		var values = {},
			forgotten = {},
			fields = this.fields;

		for (var id in fields) {
			var field = fields[id];
			var value = field.toValue();

			if (field.save) {
				if (value !== null) {
					values[id] = value;
					field.value = value;
				} else
					values[id] = field.value;
			} else
				forgotten[id] = value;
		}
	}
	try {
	    var cKey = LZString.compressToUTF16(store || this.id),
		    cValue = LZString.compressToUTF16(this.stringify(obj || values));
		this.setValue(cKey, cValue);
	} catch(e) {
		this.log("GM_config failed to save settings!");
	}

	return forgotten;
};