Question

我正在开发一个涉及创建Adobe Flash应用程序的项目，该应用程序可以更改输入文本框中文本的时态。原始示例文本是： “亚特兰蒂斯的城市都将丢失。狼人是罪魁祸首。我感到难过等等都是我的朋友。居民和亚特兰蒂斯不高兴了。这是一种浪费。”

我已经想出如何让它过去紧张并且大部分都是紧张的。但我似乎无法弄清楚如何将“我是”的部分从过去时态改为现在时（我）。请帮忙。

    original_btn.addEventListener(MouseEvent.CLICK, ConvertOriginal);
    past_btn.addEventListener(MouseEvent.CLICK, ConvertPast);
    present_btn.addEventListener(MouseEvent.CLICK, ConvertPresent);

    function ConvertOriginal(e:MouseEvent):void {
        body_txt.text = "The city of Atlantis is lost. The werewolves were to blame. I am saddened and so were my friends. The residents and Atlantis are unhappy too. It is such a waste."; 
}
    function ConvertPast(e:MouseEvent):void {
        var myPattern1:RegExp = /\s(is|am)\s/g;  
        var str:String = body_txt.text;
        body_txt.text = body_txt.text.replace(myPattern1, " was ");
        var myPattern2:RegExp = /\sare\s/g;  
        body_txt.text = body_txt.text.replace(myPattern2, " were "); 
}
    function ConvertPresent(e:MouseEvent):void {
        var myPattern1:RegExp = /\swas\s/g;  
        var str:String = body_txt.text;
        body_txt.text = body_txt.text.replace(myPattern1, " is ");
        var myPattern2:RegExp = /was/g;
        body_txt.text = body_txt.text.replace(myPattern2, " I am ");
        var myPattern3:RegExp = /\swere\s/g;  
        body_txt.text = body_txt.text.replace(myPattern3, " are ");
}

Answer 1

您需要使用此正则表达式替换顺序：

\bI was\b与I am
\bwas\b与is
\bwere\b与are

以下是您修改后的功能：

function ConvertPresent(e:MouseEvent):void {
    var myPattern1:RegExp = /\bI was\b/g;  
    var str:String = body_txt.text;
    body_txt.text = body_txt.text.replace(myPattern1, "I am");
    var myPattern2:RegExp = /\bwas\b/g;
    body_txt.text = body_txt.text.replace(myPattern2, "is");
    var myPattern3:RegExp = /\bwere\b/g;  
    body_txt.text = body_txt.text.replace(myPattern3, "are");
}

Answer 2

您可以使用字符串替换方法进行转换，如下所示

private function replaceAll(pattern:*,replacementStr:String,originalString:String):String {
        if (originalString!= null) {
            while (originalString.search(pattern) != -1) {
                originalString= originalString.replace(pattern,replacementStr);
            }
        }
        return originalString;
    }

Actionscript 3使用正则表达式替换字符串中的单词

2 个答案: