I'm working on a HTML form and and I have this input tag for a phone number.
I would like the phone numbers inserted in the textbox to match the following format: +389-xxx-xxx , such as e.g. +389-111-222 .
but I've struggled so far to make the pattern attribute.
Can someone give me some suggestions to validate the input using only HTML5? Tnx <3
How about the following pattern:
<input type="text" pattern="(\+389)[\-]\d{3}[\-]\d{3}">
The pattern looks for +389 followed by two consecutive - and 3 digits.
Related
I am developing a view using html5, I want to validate a VIN field with some particular regex pattern,
So I used data-val-regex-pattern to achieve this.
My validation is to not allow the user to enter i,o,q,I,O,Q he can enter anything in a-zA-Z0-9
So I have written the regex as ^[a-zA-Z0-9&&[^iIoOqQ]]$this regex is not working.
Not working mean when ever I enter ghtygfrt9090 it is saying invalid.
Below is the code:
<input type="text" maxlength="17" data-val-regex-pattern="^[a-zA-Z0-9&&[^iIoOqQ]]$" data-val-regex="VIN is not valid">
Please help !!
The pattern you tried ^[a-zA-Z0-9&&[^iIoOqQ]]$ does not have a quantifier for the character class and if supported will match only a single occurrence of the listed.
Repeating it would look like ^[a-zA-Z0-9&&[^iIoOqQ]]+$
In some regex engines, you could use character class intersection using $$
If it is not supported, you could make use of a negative lookahead:
^(?!.*[iIoOqQ])[a-zA-Z0-9]+$
Regex demo
Another option is to update the ranges excluding the chars
^[a-hj-npr-zA-HJ-NPR-Z]+$
Regex demo
I'm making a database where you can insert customers.
By the initials of every forename I want to check if it's in the right order.
I want it as: "T.L.R." with the dots between every initial.
To check this, I want to use a pattern.
What I got now is this:
<input required="true" type="text" required pattern="[A-Za-z]{1}+\.[A-Za-z]{1}+\.[A-Za-z]{1}+\.">
This code doesn't do anything.
Does anyone know the answer?
Thanx in advance!
You are combining {1} which means exactly 1, and + which means 1 or more. That does not work.
Try this:
[A-Za-z]\.[A-Za-z]\.[A-Za-z]\.
Since [] by default already means exactly 1, you can also drop the {1}
This does mean that you need exactly 3 characters in your initials, so I.K. will not count.
If you want to use 1 character, followed by a dot, and that repeated you can use this:
([A-Za-z]\.)+
Also, don't forget to add the prefix ^ a postfix $ to match the whole string:
^([A-Za-z]\.)+$
As some have said, the regex pattern should be rewritten to
[A-Za-z]{1}\.[A-Za-z]{1}\.[A-Za-z]{1}\.
The required pattern works well when using a form tag. Try:
<form action="customer">
Country code: <input type="text" name="country_code" pattern="[A-Za-z]{1}\.[A-Za-z]{1}\.[A-Za-z]{1}\." title="A.B.C.">
<input type="submit">
</form>
your regex should be like this if you want every character capital with dots in between
> /[A-Z]\.[A-Z]\.[A-Z]\./g
I can't seem to get the pattern attribute to work for the HTML form validation. I have seen a lot of tutorials and it all says the same and it works for them. Though I am using the same technique as the tutorials, I can't get it to work. For an example, please see the below code.
<label for= "firstname" id="firstname">First Name*</label>
<input type="text" name="firstname" pattern="[A-Za-z]" title="Only Alphabets" required/>
I want only alphabets to be inserted into this text box. When I insert numerals, it does ask to match the requested format which is only alphabets. But even when I enter alphabets it shows the message though it is supposed to let me submit the form. I tried all I can but can't seem to find a solution for this due my lack of knowledge. I would really appreciate if you could let me know how to enter only numbers into a field, only alphabets into a field, numbers and alphabets into a field using the pattern attribute for validation. Moreover, I was wondering whether the pattern attribute would be able to help me with this as well. For the National ID text box, I want the user to insert data in a specific format. Like this "A000000". An A in the first followed by 6 digits and if this format is not followed, then to display the message asking to match the requested format. Thank you so much in advance. (Please keep note that I am not using jquery).
Edit
May I please know how to add ' (apostrophe) along with the alphabets? Moreover pattern="[A-Za-z]+" wont let me insert spaces between words. How do I fix that?
The pattern field uses regular expressions. Try:
pattern="[A-Za-z]+"
For the national ID you could use:
pattern="A[0-9]{6}"
I'm working on a simple check for my input fields. I got 3 places where I'm validating user-input: javascript regex, html pattern and php regex. The Javascript and PHP part work fine, but my HTML pattern somehow returns an error for every input except blank. I tested it on regexpal.com (regex tester) and it works perfectly fine there, so I reckon I must be doing something wrong.
Here's my regex:
/^[a-zA-Z0-9\!\?\,\.\s]{0,50}$/
I'm trying to allow users to input the following:
Alphabetic characters, including capitals
Numeric characters
Puncation: exclamation(!), question(?), comma(,) and dot(.)
Spaces
Here's how I implement it:
<input type="text" id="name" name="name" aria-required="true" pattern="/^[a-zA-Z0-9\!\?\,\.\s]{0,50}$/" value="loaded value from db">
Please note: I'm allowing 0 characters to be entered because I will check it with PHP, and if the input field(s) is/are empty, a pre-set value will be written to the database.
Basically it should allow users to enter general words or sentences, but somehow it doesn't allow anything. The only way I don't get an "error" is when I leave the inputfield blank. What am I doing wrong? Is my regex wrong? Am I not implementing it correctly? I can provide more code if necessary.
Help is much appreciated!
Thanks in advance.
Try removing the forward slashes (/) from the input's pattern attribute.
Hello
I am trying save a value from an input tag in some HTML source code.
The tag looks like so:
<input name="user_status" value="3" />
I have the page source in a variable (pageSourceCode), and need to work out some regex to get the value (3 in this example).
I have this so far:
Dim sCapture As String = System.Text.RegularExpressions.Regex.Match(pageSourceCode, "\<input\sname\=\""user_status\""\svalue\=\""(.*)?\""\>").Groups(1).Value
Which works fine most of the time, however this code is used to process source code from multiple sites (that use the same platform), and sometimes there are other attributes included in the input tag, or they are in a different order, eg:
<input class="someclass" type="hidden" value="3" name="user_status" />
I just dont understand regex enough to cope with these situations.
Any help very much appreciated.
PS Although i am looking for a specific answer to this question if at all possible, a pointer to a good regex tutorial would be great as well
Thanks
You can search for <input[^>]*\bvalue="([^"]+)" if your input tags never contain angle brackets.
[^>]* matches any number of characters except > which keeps the regex from accidentally matching across tags.
\b ensures that we only match value and not something like x_value.
EDIT:
If you only want to look at input tags where name="user_status", then you can do this with an additional lookahead assertion:
<input(?=[^>]*name="user_status")[^>]*\bvalue="([^"]+)"
In VB.NET:
ResultString = Regex.Match(SubjectString, "<input(?=[^>]*user_status=""name"")[^>]*\bvalue=""([^""]+)").Groups(1).Value
A good tutorial can be found at http://www.regular-expressions.info
Assuming this is an ASP.Net page and not some external HTML you can't control the better solution would be simply to access the control.
Add an ID field to your input control and a runat="server" like this.
<input id="user_status" runat="server" class="someclass" type="hidden" value="3" name="user_status" />
You can probably get rid of the Name field. It's typically the same as the ID field and ID is a better choice. You can actually have both an ID and Name field if you want and they can both be the same value.
In your code behind you can then access the value by the ID with no need for a regex.
Me.user_status.value