Actionscript string replacement and international currency.

15Jan/081

Actionscript string replacement and international currency.

This made me a little nostalgic for the olden days when a vacation to Europe was a remote possibility:

var str:String = "Now only $9.95!";
var price:RegExp = /\$([\d,]+.\d+)+/i;
trace(str.replace(price, usdToEuro));
 
function usdToEuro(matchedSubstring:String,
                    capturedMatch1:String,
                    index:int,
                    str:String):String {
    var usd:String = capturedMatch1;
    usd = usd.replace(",", "");
    var exchangeRate:Number = 0.853690;
    var euro:Number = usd * exchangeRate;
    const euroSymbol:String = String.fromCharCode(8364);
    return euro.toFixed(2) + " " + euroSymbol;
}

The Actionscript string replacement and international currency. by Joel Hooks, unless otherwise expressly stated, is licensed under a Creative Commons Attribution 3.0 United States License.

Filed under: actionscript, travel Leave a comment

Kazuyoshi Tlacaelel

I rather use the following regular expression

/\$([\d,]+)\.(\d+)/

The one you have above is

/\$([\d,]+.\d+)+/i;

the difference is that you are matching a dot between
numbers, but in regular expressions a dot basically means
any char meaning you could match anything instead of the dot
for example.

"$324!234"
"$324x234"
"$324%234"

and plus the first one independently captures both the first and second number after a dot, making sure that it is a dot. you might wanna make a stronger regex though because in both cases you could match something like

first case
"$,,,,,,,"
"$,,0,0,,"

second case
"$,,,,,,,"
"$3,4%2,4"

I would recomend to remove all commas before getting the price
or make a more specific regex for the problem presented above

cheers!