regexp2 | featured regex engine in pure Go | Regex library
kandi X-RAY | regexp2 Summary
kandi X-RAY | regexp2 Summary
Regexp2 is a feature-rich RegExp engine for Go. It doesn't have constant time guarantees like the built-in regexp package, but it allows backtracking and is compatible with Perl5 and .NET. You'll likely be better off with the RE2 engine from the regexp package and should only use this if you need to write very complex patterns or require compatibility with .NET.
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Community Discussions
Trending Discussions on regexp2
QUESTION
Iam creating a time stamping api that gets date_strings from clients. Resource is GET /api/timestamp/:date_string and the date string is either a dateString [yyyy-mm-dd] or a unix timestamp in seconds ['2764800000']. I need a way to check whether the passed string is a valid unix time stamp.
Below is my function for validating the supplied date_string
...ANSWER
Answered 2020-Sep-07 at 07:01QUESTION
I have a complex solution to extract date and hour from a list and add the date and hour in regex to found associated value and save all in a sharedpreference. It's work If I focus manualy a specific index of my input List.
But my problem is I don't knwo how to iterate my code for each index of my input List[]
I have in input a List of date and hour
...ANSWER
Answered 2020-Sep-06 at 10:51I wrote a program that will iterate through all the list items and print the date and hrs:
I removed the otherFile statement because I did not know what was in the other file, but you can continue and add the other file and pass other files.
QUESTION
I want to reformat a string in PHP using regular expressions.
The string can look like this: (e.g.)
...ANSWER
Answered 2020-Jul-31 at 10:16Without any regex, only some substrings used:
QUESTION
I have a line like: 10 lessons (40h 25m) and I need to get the duration value and duration unit between parentheses using two regexps. 1st regex to get dur. value and second for unit.
Example:
10 lessons (40h 25m)- get 40 and h2 lessons (50m)- get 50 and m25 lessons (3d 10h 23m)- get 3 and d
Note:
I can't use one regex for this purpose. My JSON structure:
...ANSWER
Answered 2020-Jun-11 at 12:21You may try the below regex's to get your requirements:
QUESTION
const string = leTeLE
const regexp1 = /[A-Z]/g
const regexp2 = new RegExp('/[A-Z]/','g')
string.match(regexp1)
// output --> ["T", "L", "E"]
string.match(regexp2)
// output --> null
ANSWER
Answered 2020-Apr-22 at 17:08Leave the /s out of the constructor's first argument.
QUESTION
I have downloaded the package regexp2 using this command
go get github.com/dlclark/regexp2/...
Then I am using this code to import the package
...ANSWER
Answered 2020-Jan-21 at 19:29You need to import the entire repository :
import "github.com/dlclark/regexp2"
It's basically the path, from your GOPATH, to this package
QUESTION
I am a relative novice when writing Python code. Here is my issue, I am restarting a server and need to verify services are restarted. Once the server has come back online I run a command and store the output to a txt. I then Start a for loop against the txt doc ensuring the service is started. However the for loop is skipped over sometimes and not others.
...ANSWER
Answered 2019-Feb-26 at 14:26You have a "race condition" here: if you open the file before the service has started (or even begun starting), the file will be empty, so the for loop will end. You have the right idea by sleeping, but you have to put this in a second loop, so you'll reopen the file and check it again. Something like this:
QUESTION
I am trying to use JavaScript to search through all of the p elements to find a regular expressions, but the text that I am looking for may or may not partially exist in an attribute element or contained within a span. Ultimately, I plan to fix the cross references in the HTML code that were applied in Word to a Word bullet item by adding an attribute element with a reference to an html id that I have previously inserted with JavaScript.
My overall project is to create a Word document that I use the Save As function to have Word create a filtered HTML file. I am ultimately using JavaScript to insert ids and tags so that I can utilize a CSS file to standardize formatting of all my HTML files. Due to this, I have limited control of the initial HTML code.
Thus far I have been able to create a loop through all of the p elements. Within the loop, I am able to do a conditional statement for the regular expression on the innerText for "/Step (\d+)/" since I expect that the text will look something like Step 1, Step 12, or any other number. The code below seems to successfully enter if statement. I am running into trouble with the replace function for the innerHTML portion because the innerText matches the expression, but the innerHTML contains the element that prevents the final results that I am looking for. I would like to be able to generically account for any other element such as bold, italics, a, etc. To account for this, I have tried to use multiple if statements to replace various potential HTML conditions.
I am trying to figure out this skill by just being able to apply bold to the text to ensure that I understand how to complete this particular function. So far all of the searches that I have done have helped get the regular expression to match the innerText, but I can't find a method or ignoring the extraneous html code. I was thinking that it might be possible to store replaced innerText with the new HTML code and then make that the new innerHTML, but there could be other formatting in the p element that I want to maintain.
With the approach that I am taking to use a second regular expression for the innerHTML replace, the greedy search it seems like I would catch false results even if the regular expression was catching it.
HTML
...ANSWER
Answered 2019-Jan-13 at 05:33I am not really sure this is the result you expect, but this code may work. You can even update it to use arrow functions and template literals.
QUESTION
How to check with more RegEx for one address in python using re.findall()
Ex: I want to apply the below regex rules
...ANSWER
Answered 2018-Dec-28 at 05:50Finally I got answer from here
How to combine multiple regex into single one in python?
Working fine this
QUESTION
I can't seem to get the "g modifier" in a RegExp to work in a Google script.
When I try to apply it, sometimes I get the error that "ReferenceError: "g" is not defined.". When I remove the /g both regExp.exec and input.match(regExp) work, but only for the first match. Other times, I'll get the /g to work, but it returns null, not even producing the first match. I had attempted a while loop, but I didn't want to slow down this process even more (I'll save optimizing this script for another post once I get it to work as intended).
The short version is, I'm trying to get ALL matches (email addresses) not just the first one. Where do I apply the /g? Should I use another method?
You can see (below) what I've been attempting below.
Any tips? I appreciate any help me understand this and anyone that can show me a better way to approach this. Thanks!
...ANSWER
Answered 2018-Mar-25 at 15:08Using the solution provided by @I'-'I (see comments above): var re = /[A-z0-9._%+-]+@[A-z0-9.-]+\.[A-z]{2,4}/g;
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