Regex consecutive numbers

Regex Tester

By using this site, you agree to our updated Privacy Policy and our Terms of Use. Manage your Cookies Settings. Join Now login. Ask Question. I need a regular expression which will evaluate to false if number of consecutive characters non-whitespace exceeds certain number 10 in this example. I need it to return false. Before you tell me to invert the return value: return! I hardcoded both value and RegEx here, but in production it will receive blindly both value and RegEx and return evaluation result. If false, certain error is reported, which is what I need. For this to work all of the words would have to be longer than 10 chars. I need it to return false as soon as 1 instance of too long of a string is found. Oct 12 ' Post Reply. Share this Question. Apparently it's not really a very "general" validation function, if you can't at least specify the sense of the test. Is that something that you can fix, or is this yet another request for help coding around bad systems that can't be changed? Randy Webb. Oct 13 ' Thomas 'PointedEars' Lahn. Sharkie wrote: I need a regular expression which will evaluate to false if number of consecutive characters non-whitespace exceeds certain number 10 in this example. Yes, you can "invert" the return value of RegExp. I can't do this, Yes, you can. Why, you can do several tests on a string, invert one result and don't invert the other sand combine the values with logical operators. I don't see a problem here. How do you define a word here? I need it to return false as soon as instance of too long of a string is found. Sharkie wrote on 13 okt in comp. The Netherlands. Please change the x'es to dots in my emailaddress. Dr J R Stockton. In comp. And I rather doubt whether it will work as written. The best way, though not in accord with the stated condition, is to change the OP's return statement to return! Allow for the argument being absent, making that give what the function currently gives.

Subscribe to RSS


I am trying to see if a string has say 9 consecutive numeric digits in it but it will only work if the long string of numbers is the first string of numbers. Get all the numbers in the given string into a table in a sequencial order, that is the order in which they appear in the string. Once you have all the numbers you may find out if the numbers are consecutive or not. The following is the code which is not tested. Sorry if I was not clear I was not looking for a specific series of numeric digits but and series of numeric digits. Not what you're looking for? Search community questions. This question has been deleted. This question has been undeleted. Simon Broome. Posted on Apr 04, at AM Views. Does the next x characters contain only numbers? ABAP Development. Add comment. Related questions. Sort by: Votes Newest Oldest. This answer has been deleted. This answer has been undeleted. Posted on Apr 24, at AM. Alert Moderator. You already have an active moderator alert for this content. Kartik P. Apr 24, at AM. Dear Simon, you want to check for consecutive numbers in a string. Then you may do the following - 1. Get all the numbers in the given string into a table in a sequencial order, that is the order in which they appear in the string 2. Hope it helps. Thank you. Regards, kartik. Former Member. Posted on Apr 04, at AM.

Subscribe to RSS


There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors. Matt Taylor wrote: I am looking for consecutive digits and include the letters in the matcher until a whitespace is encountered. Forum: Beginning Java. Matt Taylor. Hi guys, I want to retrieve any words in which they have 5 consecutive numbers. Given the sample string : "This is 12,q" How can I retrieve "", and "" and "q"? Please I need your advice. Tim Moores. Saloon Keeper. I like Or there needs to be an additional optional string before it that matches letters and whatever else might be there and should be found. Tony Docherty. I know i'm being a little pedantic here, but when you are writing specs, these kinds of things do make a difference. Thank you very much for your response. Just a follow up question please. Can someone please tell me how can I use pattern. Campbell Ritchie. That is slightly different from what you said first. Another way to do it might be to split the String on whitespace and iterate the resulting array. Knute Snortum. I want to retrieve any words in which they have 5 consecutive numbers. And the term "word" is not well-defined either. What about something like "abcdef" I think another issue is that often, people want to write a single, monoliths regex that does everything in one fell swoop. The issue i see there is that if the specs change, updateing that single regex is hard - damn hard. I'm a big proponent of writing several little regexes that are all simple to understand that can then all be combined - the exact same way you'd write a program or even a complicated method. So consider: breaking apart the string on whitespace test each token with whatever criteria if all criteria met, include that in your final list of tokens. Thank you very much for your input. I have a message like a business letter of words long that has some digits in it and i need to extract those. As long as the "word" in the message starts with 5 consecutive digits, regardless of it contains any special character or letters after the 5 consecutive digits, I need to retrieve those whole word until a whitespace or new line or tab or any invisible spaces after that word. I'm really sorry i no expert in regex and I need help please. Carey Brown. As you can see there's a test frame work that you can insert "good" and "bad" use cases into to verify if this meets your needs. Regex's are a maintenance headache. Matcher; import java. Hang a left on main. Then read this tiny ad:.

Find the number of consecutive numeric digits in string


By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Edit: I think you want to find 4 of the same digits, you need a backreference for that. The first group matches the start of the string or any character. Then there's a negative look-ahead that uses the first group to ensure that the following characters don't match the first character, if any. The third group matches any digit, which is then repeated 3 times with a backreference to group 3. Finally there's a look-ahead that ensures that the following character doesn't match the series of consecutive digits. This sort of stuff is difficult to do in javascript because you don't have things like forward references and look-behind. Should the numbers be part of a string, or do you want only the four numbers. That makes sure, that only four numbers are valid, and nothing before or after that. How are we doing? Please help us improve Stack Overflow. Take our short survey. Learn more. Regex to check for 4 consecutive numbers Ask Question. Asked 7 years, 11 months ago. Active 10 months ago. Viewed 29k times. SteveC Is the second to last example correct? Should the regex not match a string that has multiple series of 4 consecutive digits?

Find the number of consecutive numeric digits in string

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Edit: How to match the exact opposite, i. Basically, it means to give 9 repetitions of the original first repetition of a given number, which results in 10 of the same number in a row. How are we doing? Please help us improve Stack Overflow. Take our short survey. Learn more. Regex to find repeating numbers Ask Question. Asked 8 years, 9 months ago. Active 1 year, 9 months ago. Viewed 44k times. Can anyone help me or direct me to build a regex to validate repeating numbers eg :,etc It should validate for any length. SLaks k gold badges silver badges bronze badges. Charmila Charmila 1 1 gold badge 3 3 silver badges 5 5 bronze badges. Are you just looking for a single digit repeating, or would any sequence of digits repeating count. Active Oldest Votes. Tim Pietzcker Tim Pietzcker k 53 53 gold badges silver badges bronze badges. For this to match, you'd require at least 2 of the same digit. Neil: Correct, that's why I wrote "If 1 should also be a valid match[ Thanks it's working, how do I achieve the opposite of this? Can't you apply the regex and invert the result of the match? In fact, 1 is a valid match. He said so himself. SLaks SLaks k gold badges silver badges bronze badges. Backreferences match the matched characters; they don't repeat the expression. I used this expression to give me all phone numbers that are all the same digit. Mimi Mosa Mimi Mosa 31 1 1 bronze badge. Parteek Sharma Parteek Sharma 1 1 1 bronze badge. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Q2 Community Roadmap. The Unfriendly Robot: Automatically flagging unwelcoming comments. Featured on Meta. Community and Moderator guidelines for escalating issues via new response….

Leetcode 83 Problem 3 - Consecutive Numbers Sum (829)



Comments on “Regex consecutive numbers

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes:

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>