Splitting a string in C#
Solution 1
Use the Regex.Matches
method instead:
string[] result =
Regex.Matches(str, @"\[.*?\]").Cast<Match>().Select(m => m.Value).ToArray();
Solution 2
The Split
method returns sub strings between the instances of the pattern specified. For example:
var items = Regex.Split("this is a test", @"\s");
Results in the array [ "this", "is", "a", "test" ]
.
The solution is to use Matches
instead.
var matches = Regex.Matches(str, @"\[[^[]+\]");
You can then use Linq to easily get an array of matched values:
var split = matches.Cast<Match>()
.Select(m => m.Value)
.ToArray();
Solution 3
Another option would be to use lookaround assertions for your splitting.
e.g.
string[] split = Regex.Split(str, @"(?<=\])(?=\[)");
This approach effectively splits on the void between a closing and opening square bracket.
user1875195
Updated on March 15, 2020Comments
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user1875195 about 4 years
I am trying to split a string in C# the following way:
Incoming string is in the form
string str = "[message details in here][another message here]/n/n[anothermessage here]"
And I am trying to split it into an array of strings in the form
string[0] = "[message details in here]" string[1] = "[another message here]" string[2] = "[anothermessage here]"
I was trying to do it in a way such as this
string[] split = Regex.Split(str, @"\[[^[]+\]");
But it does not work correctly this way, I am just getting an empty array or strings
Any help would be appreciated!
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p.s.w.g about 11 yearsThat will also break on
\n
between[
and]
. I don't think that's what OP wants -
Kenneth K. about 11 yearsDid you test your
Split
example? Aside from not properly escaping the\w
, the result you mention is completely wrong. -
p.s.w.g about 11 years@KennethK Thanks. I wrote that edit on my way out the door, and didn't have a chance to proofread it. I fixed it.
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malik masis almost 2 yearsno need Cast<Match>