Hi there,
I have a string variable that I want to split into a string array using the regex. The problem is the whole string is together and there are no separators.
I want to insert separators so that I can later split the strings into an array. How should I proceed?
Could you provide an example of the string? Is there any pattern you can use to split the string?
for example a string like this:
“text1text2text3”
I want to insert a separator between each “text(nr)” and thus split the string into an array afterwards with string.split.
I’ve tried to split it with regex.split. It does split but it adds 3 empty strings to the array.
Used command: arraystring = regex.split(stringinput, “\w{4}\d{1}”)
I’ve also checked the variable type, but it’s set correctly.
@Keemper
maybe you can work with a regex:
and insert the seperator with the help of replace:
so have a look to the regex.replace method or use following activity:
the last unneeded seperator we can easy remove and correct
Hi,
We can directly get an array from the string as the following.
strVar ="text1text2text3"
arrString = System.Text.RegularExpressions.Regex.Matches(strVar,"[A-Za-z]+\d+").Cast(Of System.Text.RegularExpressions.Match).Select(Function(m) m.Value).ToArray
Regards,
So many possible solutions! 
A third option would be to put your regex pattern in (?=...). The first item will be empty, so remove it with Skip().
myArray = Regex.Split("text1text2text3", "(?=\w{4}\d{1})").Skip(1).ToArray
Hey @Keemper
As @ptrobot said, so many options.
I like @ptrobot and @Yoichi’s solution in this post.
It also depends on the length of the word and digits. Will they change? Something to consider.
Good luck 
Yeah, the length of the words (digits) do change.
FYI - The word length does change
@Keemper - How does this pattern work
As long as there are numbers between each word it will match all the words…
Also be sure to check out my Regex MegaPost
Thanks @Steven_McKeering! My solution was just to put any regular expression in a positive lookahead and use it with Regex.Split() and Skip(). Since @Keemper already made a correct regular expression (for the sample text), I’m sure he/she can adjust it to include words and digits of variable length.
Update: It turns out that it was not that easy to use variable length with positive lookahead. So Yoichi’s solution is the best solution so far.
@Keemper
based on my approach from above:
Regex.Replace(strDemo,"\d+","$0#").Split({"#"}, StringSplitOptions.RemoveEmptyEntries)
Hi. I’m new here.
Could someone help me with my problem?
the input i have: Qianhong Zhang; Ouyang Miao; Fubiao Lin; Zhongni Zhang
the output i want: Zhang, Qianhong; Miao, Ouyang; Lin, Fubiao; Zhang, Zhongni
this is how i change the order (for only 1 name):
(.?)\s([\wáâàãçéêíóôõúüÁÂÀÃÇÉÊÍÓÔÕÚÜ]+-?'?\w+.?$)
\w'?\w+.?$/gmi - LASTNAME
\w'?\w+.?$/gmi - LASTNAME
(.?)([\wü]+-?'?\w+.?$)/gmi - FIRST AND LASTNAME
(.?)([\wáâàãçéêíóôõúüÁÂÀÃÇÉÊÍÓÔÕÚÜ]+-?'?\w+.?$)/gmi - FIRST AND LASTNAME
My question: how do i get the output i want with the input i have? how do i add the (; ) between the Names?
Have you considered to use Regex.Split() instead?
String.Join("; ",
(From n In System.Text.RegularExpressions.Regex.Split(input, "; +")
Let arr = System.Text.RegularExpressions.Regex.Split(n, " +")
Select arr.Last + ", " + String.Join(" ", arr.Take(arr.Length-1))
)
)
Thank you for your answer, but i’m not sure how to use it yet. Is there a generator for Regex.Split?
I’m currently using (regex101: firstname and lastname).
There’s no generator for Regex.Split but the substitution feature in regex101 might help you to see the result of a split if you insert the replacement value “\n”.
I still need some time to put them together in regex101, but i’m already editing the names so much faster thanks to you.
Anil_G
jast1631
yuichi