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Regular expression for capturing optionally present groups in Go

Regular expression for capturing optionally present groups in Go

I'm trying to write a regular expression that in a string representing go code will replace the name of a type, e.g. bar, with an updated name, e.g. foobar, but only where it appears as a field type in another struct or Array of this type. For example, I want to convert typefoostruct{barbarbaz[]barbars[]bar} into typefoostruct{barfoobarbaz[]foobarbars[]foobar} so far I have successfully used this

Feb 09, 2024 pm 02:10 PM
Need a regex to validate 'earn an extra 20%' or 'earn an extra 20%'

Need a regex to validate 'earn an extra 20%' or 'earn an extra 20%'

A regular expression is needed to validate the string mentioned below. 'Earnextra20%'-valid'Earn20%extra'-valid'earnextra20%'-valid'earn20%extra'-valid'Earn20'-valid'Earn'-Invalid'20'-Invalid'Earn^&'-Invalid should not Allow any other special characters - use golang1.19

Feb 09, 2024 pm 01:33 PM
go test -run: how to specify package in test identifier

go test -run: how to specify package in test identifier

Suppose I have two packages foo/bar and foo/baz. Both foo/bar and foo/baz have a TestFoo, but I only want to run the TestFoo for foo/bar. Additionally, foo/baz has a TestBaz that I want to run. Is it possible to specify the gotest command to run only foo/bar::TestFoo and foo/baz::TestBaz? I tried using gotest-run to achieve this, but it looks like running the regex just filters by name, not by bundle identifier: gotest-run "TestFoo|TestBaz" f

Feb 09, 2024 pm 12:50 PM
go语言
Replace '.' with '_' Golang

Replace '.' with '_' Golang

I've been doing go programming on codewars as a hobby and stumbled upon the following task: The provided code should replace all points. in a specified string with dashes - but it doesn't work properly. Mission: Fix the bug so we can get home early. Initial error code: regexp.mustcompile(`.`).replaceallstring(str,"-") By brute force, I got it to work like this: regexp.mustcompile(`[.]`).replaceallstring(str,"-") The correct answer is obviously this: regexp.Must

Feb 09, 2024 am 11:12 AM
How to make an entire word optional in a regular expression?

How to make an entire word optional in a regular expression?

That is, I want to customize my regex to recognize the following apple and lemon, apple lemon, apple and and apple. I want and and lemon to be optional, currently I've only managed to make and optional, not lemon. It would be great if this could be achieved using the current regex format. Regular expression: \b([a][\W_]*?)+([p][\W_]*?)+([p][\W_]*?)+([l][\W_] *?)+([e][\W_]*?)+(([a][\W_]*?)+([n][\W_]*?)+([d][\W_]* ?))?([l

Feb 09, 2024 am 10:36 AM
How to improve segmentation logic in golang

How to improve segmentation logic in golang

Consider the following examples as possible values ​​in the index: values:=[5]string{"32.5ms","32.5ms","32.5%","32.5%","none"} Note that the original value may have Spaces, and possibly spaces without measurement units (32.5%, 32.5%, 32.5%, etc.) I need to separate the floating point value and measurement unit (%, ms, etc.) from the original value, as in the following code, I get what I want results, but I'm wondering if there is a cleaner way to perform the same logic, perhaps without the need for regular expressions. packagemainimport("fmt""regex

Feb 09, 2024 am 10:00 AM
How to match characters between two occurrences of the same but random string

How to match characters between two occurrences of the same but random string

The basic string looks like this: repeatedRandomStrABCXYZ/an/arbitrary/@#-~/sequence/of_characters=I+WANT+TO+MATCH/repeatedRandomStr/the/rest/of/strings.etc My understanding of this basic string is :abcxyz is constant and always present. repeatedrandomstr is random but its first occurrence is always at the beginning and before abcxyz So far I've looked into regex context matching, recursion and subroutines but can't figure it out myself

Feb 09, 2024 am 09:57 AM
How to remove cursor position ANSI escape code from 'HijackedResponse' in Go?

How to remove cursor position ANSI escape code from 'HijackedResponse' in Go?

I'm trying to execute (interactively) a docker container using go. This is the code I'm using: func(docker*docker)redirectresponsetooutputstream(outputstream,errorstreamio.writer,respio.reader)error{_,err:=stdcopy.stdcopy(outputstream,errorstream,resp)returnerr}func(docker*doc

Feb 09, 2024 am 09:42 AM
go语言
Replace repeated substrings in a string by replacing only one of them

Replace repeated substrings in a string by replacing only one of them

I'm making a simple hangman game with go but I'm running into a bug where the unknown_string string (which will be shown in the code) has _ characters so other players guessing the letters can see the length of the word and whenever the player types correctly of a letter, I want it to replace the nth (n depends on the index where the letter is found in the word) _ character with that letter, this has been successful, but there is a problem. If a word has two repeated letters, only one of them is replaced. I created a separate function called iterate (this function is because I want to avoid nested code) to iterate over all indexes. But it doesn't work, the code is as follows: packagemainimport(

Feb 09, 2024 am 08:15 AM
Extract value from string with nested brackets

Extract value from string with nested brackets

Given an input string, for example: AB[C[DA,BF,GAL],DB[NX,AQQ,AAN,B],F[H[GG,BAND]]] returns the string array: ["ABCDA" ,"ABCBF","ABCGAL","ABDBNX","ABDBAQQ","ABDBAAN","ABBDB","ABFHGG"] I was able to write a partial solution, but if there are multiple [children] it is difficult to keep track of the parent node. Another test string: ZHLADAOR[R[G[45D[COI,EMA],Q5D[COI,EMA],U5D[COI,EMA],Y5

Feb 08, 2024 pm 11:54 PM
字符串数组
How to return custom user-friendly error messages in Kubernetes?

How to return custom user-friendly error messages in Kubernetes?

I have a golang backend that talks to k8s. I want to rephrase the error response I get from k8s and send it to the frontend. I want to return a meaningful validation error message to the user when he adds an invalid name and something is already there...I want something generic instead of hardcoding it in the controller for each endpoint . I'm using kubernetes/client-go. First error: For example, let's say I want to add a hotel to etcd, when I try to add the hotel name: hotel123, the hotel already exists. I get this error message: \"hotel123\" already exists. What I want: hotel123

Feb 08, 2024 pm 11:12 PM
Regular expression with nested repetitions

Regular expression with nested repetitions

I'm trying to create a regex in go that matches up to 50 words separated by spaces where each word is 1-32 "a"s I'm using the following regexp.compile(`^(a{ 1,32}\s?){1,50}$`)I got the following error errorparsingregexp:invalidrepeatcount:`{1,50}`I noticed that it can be repeated up to 31 times like this r,err:= regexp.Compile(`^(a{1,32}\s?){1,31}$`)See https://

Feb 08, 2024 pm 09:20 PM
Exact line in Golang regex file

Exact line in Golang regex file

I have a file with the following content #requiresauthenticationwithauth-user-passauth-user-pass#auth-user-pass#auth-user-passauth-user-passwd Is there a way to make the regex match only the second line with golang? I tried using the following code but it returns empty slice packagemainimport("fmt""os""regexp")funcmain(){bytes,

Feb 08, 2024 pm 09:06 PM
How to write a regular expression for the last occurrence of a single space in Go?

How to write a regular expression for the last occurrence of a single space in Go?

I want to replace the last space in the string with something else. How to write regular expression for last space in Golang? So far I've only found \s+ matches all spaces

Feb 08, 2024 pm 08:51 PM

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