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I am using html 5 form validation but not getting correct pattern for validating phone number. The regex validation for india should make sure that +91 is used, then make sure that 7, 8,9 is used after +91 and finally followed by 9 digits.
Your answer doesn't contain any information which is not already provided by any of the other answers. Not the answer you're looking for?Browse other questions tagged html5 validation or ask your own question.
These SQLzoo people also run some other tutorials, including some on a few programming languages. So, is there a good, online, interactive regex tutorial along the lines of that SQL tutorial? Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise.If this question can be reworded to fit the rules in the help center, please edit the question.
The main reason it might be useful for learning regexes is the ability to see the effect each edit is having on the matching. Shameless plug: I wrote an interactive Regular Expression tutorial (RegexOne) over a couple weekends to help some friends learn regular expressions. It's not online, however, you might enjoy the game RegexExpress (warning: one of the award pictures is nsfw).


Although this tool is not quite a tutorial in the style of that SQL website, its intention is to help teach regex. Not the answer you're looking for?Browse other questions tagged regex or ask your own question.
Find the probability of getting one diamond and one spade in a five-card hand, using binomial coefficients. What type of under the seat bag is practical, and what should be stored in it for the flight? I wonder what the best practice for parsing and validating a mobile number before sending a text is. At the moment we are very forgiving when the user enters the number on the form, they can enter things like "+44 123 4567890", "00441234567890", "0123456789", "+44(0)123456789", "012-345-6789" or even "haven't got a phone". However, to send the text the format must be 44xxxxxxxxxx (this is for UK mobiles only), so we need to parse it and validate it before we can send. Use a regular expression to remove any non-numeric characters instead of trying to guess how a person will enter their number - this will remove all your Replace() and Trim() methods, unless you really need to trim a leading zero.
Alternatively, I would recommend you use a masked textbox to collect the # (there are many options available) to allow only numeric input, and display the input with whatever format you'd like. The documentation I have for the SMS gateway specified 44xxxxxxxxxx as the format to send the number in, it's possible that they would accept +44, 0044, and 0xxxxxxxxx as well though.
If you need to accept a wide variety of formats, then a masked textbox might not be the way to go, as I can't think of a way to make it generic enough for your requirements.


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Discouraged from giving A's, but students are doing excellent work, what can a professor do?
How do I encourage users to supply information that might not be available, if it is available? You just type an example of some text you want to match, and then it lets you pick bits out to match against.
It's a game made during a PyWeek contest that teaches you to use regex on a curses type interface.
I've got code that works, but I'd like to find out better ways of doing it (as my last question, this is part of my early new years resolution to write better quality code!).
However, we want them to be able to enter any of these on the form, and even if it's fine for them to enter a non-UK number there we still need to make sure texts are only sent to UK numbers. It contains many expressions but I think one of the top 2 expressions in the site should be suitable to you.



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