Spliting on multiple delimiters

[Mersilla]

Dear All,

I am currently new to perl and is experiencing difficulties with splitting and array with multiple conditions.
For example ,

I would like to spilt an element, which contains one or more of the three keywords that i would like to split the array into : Region, Site, Bond.

i tried the command

@split_feature_protein_field = split ( /\sRegion|Site|Bond/,$split_feature_protein_field1[1] ) ;

but it do not seem to work...

Does anyone have any idea on multiple condition splitting?

Thanks

[numberwhun]

When you are using the split function, it is going to perform the split using the delimiter that you specify in your regex. So, if you are providing several options, then it is going to try to figure that out.

Lets say your data is in the following format:

field1;field2;field3

and the date is in a file called...well.... data.txt. You would want to split using a semicolon as a delimeter. Here is how you would do it:

open(FILE, "<./data.txt");
 
while(<FILE>) {
    chomp;
    my $data = $_;
    my @array = split /;/, $data;
}
 

That will split the line into its different sections, delimited by a semicolon. What you do with that from there is up to you.

Regards,

Jeff

[KevinADC]

Maybe all you need is to group the various patterns you want to split on using parenthesis:

@split_feature_protein_field = split ( /\s(Region|Site|Bond)/,$split_feature_protein_field1[1] ) ;

But really without any context to go by it is not possible to say why you believe it is not working.

Also, you are defining the array by splitting the array on the second element of the existing array. Any value the array @split_feature_protein_field had before the split will be lost and a new array will be created. This might not be what you want to do.