flash - Flash：解释来自外部 txt 文件的换行符

Question

我正在尝试将外部 txt 文件中的变量放入闪存中。文本文件如下所示：

[Settings]
AllowSetConflicts=1

[Hotkeys]
Music=F2
Sound=F6
PTT=
ChatAllies=Tab

等有没有办法让闪光灯识别换行符并过滤掉 [Settings] 之类的文本？

Answer 1

如果可能的话，我建议您使用 XML 或 JSON 而不是您自己的格式，因为它更安全并且您不需要编写解析器。

动作脚本：

import flash.net.URLLoader;
import flash.net.URLRequest;
import flash.events.Event;

var textLoader:URLLoader = new URLLoader();
textLoader.addEventListener(Event.COMPLETE, textHandler);
textLoader.load(new URLRequest('txt.txt'));

function textHandler(e:Event):void{
    var s:String = e.target.data;
    var params:Array = s.split('\r');
    trace(params[0].replace('\n',''));
    trace(params[1].replace('\n',''));
}

var xmlLoader:URLLoader = new URLLoader();
xmlLoader.addEventListener(Event.COMPLETE, xmlHandler);
xmlLoader.load(new URLRequest('xml.txt'));

function xmlHandler(e:Event):void{
    var xml:XML = new XML(e.target.data);
    trace(xml.settings.AllowSetConflicts);
}

txt.txt：

[Settings]
AllowSetConflicts=1

[Hotkeys]
Music=F2
Sound=F6

xml.txt：

<root>
   <settings>
       <AllowSetConflicts>
           1
       </AllowSetConflicts>
   </settings>
</root>

Answer 2

我同意福克斯穿袜子的观点。事实上，有多少应用程序正在保存其设置（以 xml 格式）。

但是，如果您没有机会更改文件，这就是我要做的。

package  {

    import flash.display.Sprite;
    import flash.net.URLRequest;
    import flash.net.URLLoader;
    import flash.events.Event;
    import flash.events.IOErrorEvent;


    public class Main extends Sprite {

        private var urlL:URLLoader;
        private var props:Object = {};
        // props will be assigned all the data from the txt file
        private var file:String = 'file.txt';

        public function Main() {
            urlL = new URLLoader(new URLRequest(file));
            urlL.addEventListener(Event.COMPLETE,processFile);
        }

        private function fileNotLoaded(e:IOErrorEvent):void {
            trace(file, 'could not be loaded');
        }

        private function processFile(e:Event):void {
            var str:String = urlL.data.toString();
            var ref:Object, prop:String, val:*;
            var lines:Array = str.split(/\r\n?|\n/g);
            for (var i:int = 0; i < lines.length; i++) {
                // if it's an empty line...
                if (/^\s*$/.test(lines[i])) continue;
                // if it's a category line...
                if (/^\[.+?\]$/.test(lines[i])) {
                    ref = props[lines[i].replace(/^.(.+?).$/,'$1')] = {};
                // if it's a variable-value pair line...
                } else if (/^[^\r\n]+=[^\r\n]*$/.test(lines[i])) {
                    prop = lines[i].split('=')[0];
                    val = detectType(lines[i].substr(prop.length+1));
                    ref[prop] = val;
                }
            }
        }

        private function detectType(s:String):* {
        // this is an optional function to convert strings
        // with basic data types into appropriate class instances
            if (s == 'null') return null;
            if (/^(\d+|(\d+)?\.\d+)$/.test(s)) return Number(s);
            if (/^true$/.test(s)) return true;
            if (/^false$/.test(s)) return false;
            return s;
        }

    }

}