Greetings,
I am a novice in Javascript and I am not able to succeed finding right
regular expression for my requirement.
Input in HTML form should be in the format of row.rack.bin i.e
three separate words separated by two dots/periods. User can enter
"xyz.." also. Minimum two dots/periods must be present. Here is my
code, it works partially. Please point me to the right expression.
<script>
locatorfmt=/[^\.]\.[^\.]\.[^\.]/i;
function validateLocator () {
locator=documen t.getElementByI d('p_item_locat ion').value;
if (locator.search (locatorfmt)==-1) {
alert('Please enter locator in correct format');
return false;
}
return true;
}
</script>
thanks
Sudhakar 1 5223
In article <bd************ **************@ posting.google. com>, i_***********@h otmail.com (Sudhakar Doddi) wrote: Input in HTML form should be in the format of row.rack.bin i.e three separate words separated by two dots/periods. User can enter "xyz.." also. Minimum two dots/periods must be present. Here is my code, it works partially. Please point me to the right expression.
There's a lot of ambiguity here. What characters
can be in a "word?" letters, numbers, punctuation other
than dot, spaces, tabs??? [^.] allows all those but
do you want that?
What does "minimum" mean? Is more OK?
locatorfmt=/[^\.]\.[^\.]\.[^\.]/i;
No need for the "i" since there are no letters in the pattern.
Dot doesn't need quoting inside [] -- [^.] is OK.
You need [^.]* to allow zero or more non-dots.
[^.] is "not dot" and [^.]* is zero or more not-dots, so
locatorfmt = /[^.]*\.[^.]*\.[^.]*/
if (locator.search (locatorfmt)==-1) {
search() looks everywhere. Do you really want to allow
something like "Hi -- my name is Bob -- what's yours? ..."
If you want locator to just have row.rack.bin, no
extra dots, no spaces, use something like this:
/^\S*\.\S*\.\S*/
For lots of other pattern options, see http://www.visibone.com/regular-expressions/ This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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