Samuel,

You’re welcome. Feels good to be useful! :-D

I can’t think of any situation where control characters are desirable.


Cheers,
Flavio


> On 13/09/2016, at 13:03, Samuel Pelletier <[email protected]> wrote:
> 
> Flavio,
> 
> Thank you, this works perfectly.
> 
> It could be easily added to ERXWOTextField and WOText element by default...
> 
> Is there any situation where control char would be desirable in a web text 
> input (except for the tab and new line) ?
> 
> Samuel
> 
> 
>> Le 13 sept. 2016 à 10:05, Flavio Donadio <[email protected]> a écrit :
>> 
>> Samuel,
>> 
>> 
>> The user might have copied from another app and pasted into the field.
>> 
>> The solution is to strip control characters from the user input. As you may 
>> know, there are a lot of ways to do that and dependent on the use case. For 
>> example, if it’s a multiline text input control (textarea), you may want to 
>> keep certain characters like carriage returns, line feeds and tabs.
>> 
>> One example of stripping all control characters using pure Java:
>> 
>>      String.replaceAll("\\p{Cntrl}", "”);
>> 
>> … and one example of stripping every control character, except for CR, LF 
>> and TAB:
>> 
>>      String.replaceAll("[\\p{Cntrl}^\r\n\t]+", "");
>> 
>> I am sure NSString has methods for that...
>> 
>> 
>> Cheers,
>> Flavio
>> 
>>> On 13/09/2016, at 09:40, Samuel Pelletier <[email protected]> wrote:
>>> 
>>> Hi,
>>> 
>>> I just encountered a strange error where a user managed to put a DEL char 
>>> inside a text field. This char raise an SQL Exception in the server.
>>> 
>>> First, I really would like to know how they manage to do this ! I do not 
>>> even know how to put a DEL (code 127) inside text with the keyboard. I had 
>>> some case with other control char in the past too.
>>> 
>>> Second, is there a wonder way to filter these or a Javascript method to 
>>> prevent them from the source, or any suggestion to handle this ?
>>> 
>>> Real users are alway a source of unpredicted challenges. 
>>> 
>>> Thank,
>>> 
>>> Samuel
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