How to create a sequence of strings between "start" and "end" strings

Asked Apr 22 '20 at 00:32

Active Apr 22 '20 at 00:40

Viewed 34 times

Lets suppose I have the following strings:

string start = "ABC";
string end = "EEE";

I want to generate a collection of strings between those two, as if the characters were numbers, each one from A to Z. They will always have three characters. For example:

ABD
ABE
ABF
....// many strings, lets jump ahead
ABZ
ACA
....
AZZ
BAA
...
EEB
EEC
EED

I am trying to create a method like this:

public static IEnumerable<string> GenerateSequence(string start, string end)
{
    // while? for? do while?
    yield return ?;
}

But I really do not know where to begin. Am I reinventing the wheel? Is there a good algorithm to do this?

edited Apr 22 '20 at 00:40

asked Apr 22 '20 at 00:32

Guilherme

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Why do you want to do this? – mjwills Apr 22 '20 at 00:34
Lets say I'm making a web crawler that will scrap a website with a "search box" that accepts those codes as input. In each search, I will get one result. I want all of the data (results) between the sequence. – Guilherme Apr 22 '20 at 00:37
Will both strings have the same length? What if one is `"A"` and the other is `"AAA"`? or `start: "B", end: "AA"` or `start: "AAA", end: "Z"`? – Dai Apr 22 '20 at 00:38
They will always be length == 3, let me update the question with that info. – Guilherme Apr 22 '20 at 00:38
@Dai since it's scraping someone key site the format should be fixed... – Alexei Levenkov Apr 22 '20 at 00:39
@AlexeiLevenkov thanks for the link, I searched but did not find that. I believe this will solve my problem. – Guilherme Apr 22 '20 at 00:43
There are more https://www.bing.com/search?q=c%23+sequntial+string+increment ... – Alexei Levenkov Apr 22 '20 at 00:46

How to create a sequence of strings between "start" and "end" strings

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