Special Characters Processing

[Michael Hill]

How do I detect the special characters " ' or & when the user pushed
them.

I have this code:
<input type='text' onKeyUp='ck_char(this,event);'>

function ck_char(fld, e)
{
var key = '';
var whichCode = (window.Event) ? e.which : e.keyCode;
key = String.fromCharCode(whichCode); // Get key value from key code
alert(key);
}

Since each one of these special keys also involve pressing the shift
key, the only value I get passed back is the last key pressed, which in
the case of & would always be 7.

What I'd like to do is detect these special characters when they are
entered and go ahead and replace them with an appropriate equivalent.

Mike

 

[Evertjan.]

Michael Hill wrote on 05 mrt 2004 in comp.lang.javascript:

How do I detect the special characters " ' or & when the user pushed
them.

I have this code:
<input type='text' onKeyUp='ck_char(this,event);'>

function ck_char(fld, e)
{
var key = '';
var whichCode = (window.Event) ? e.which : e.keyCode;
key = String.fromCharCode(whichCode); // Get key value from key
alert(key);
}

where do you use the "fld" for ?

========================

alert(/'"/.test(key))

will give "true" if either ' or " is found.

Since each one of these special keys also involve pressing the shift
key, the only value I get passed back is the last key pressed, which
in the case of & would always be 7.

What I'd like to do is detect these special characters when they are
entered and go ahead and replace them with an appropriate equivalent.

wouldn't we all?

 

[Michael Hill]

where do you use the "fld" for ?

Another part of the script that I didn't show.

========================

alert(/'"/.test(key))

will give "true" if either ' or " is found.

This is giving me "false" for everything I push.

Mike

 

[Evertjan.]

Michael Hill wrote on 05 mrt 2004 in comp.lang.javascript:

This is giving me "false" for everything I push.

Ah yes, the key is a number,
so you will have to convert to a character
and I forgot the []

<script>
key=39 // '
key= String.fromCharCode(key)
alert(/['"]/.test(key))

key=34 // "
key= String.fromCharCode(key)
alert(/['"]/.test(key))
</script>

tested IE6