ActionScript 3替换字符串

Question

I am trying to replace a substring in a string. My code below replaces all occurrences of substring. Eg When clicked on in it replaces both in . But I like to replace only clicked one. How can we do this?

The books are in the table in my room.

          function correct(e:TextEvent):void{
                str =String(e.currentTarget.htmlText);
                if(e.text==replacements[e.currentTarget.name]){
                    e.currentTarget.htmlText =strReplace(str, e.text,    corrections[e.currentTarget.name]);
                }
        }


         function strReplace(str:String, search:String, replace:String):String {
             return str.split(search).join(replace);
        }

Answer 1

You can use TextField.getCharIndexAtPoint(x:Number, y:Number):int to get the (0-based) index of the char in a particular coordinate.

You obviously need to use your clicked point as (x, y) .

You can use localX and localY from TextField.click event.

See here for more: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/text/TextField.html#getCharIndexAtPoint%28%29

At this point you need to search the string to replace in the neighborhood of the clicked char.

For example, something like this:

stringToReplace = "in";

len = stringToReplace.Length;

neighborhood = TextField.substring(clickedCharIndex-len, clickedCharIndex+len);

if (neighborhood.indexOf(stringToReplace)) {

    neighborhood = neighborhood.replace(stringToReplace, replacement);

    TextField.text = TextField.text(0, clickedCharIndex-len) + neighborhood +
                     TextField.text(clickedCharIndex+len);

}