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How do you split a string e.g. "a:b:c:d" into tokens for parsing in Perl?
(e.g. using split?)
Looking for clear, straightforward answer above all (but do add any interesting tidbits of info afterwards).
579
If you need to split a string into characters, you can do this: @array = split(//); After this statement executes, @array will be an array of characters. split recognizes the empty pattern as a request to make every character into a separate array element.
substr() in Perl returns a substring out of the string passed to the function starting from a given index up to the length specified. This function by default returns the remaining part of the string starting from the given index if the length is not specified.
Perl | split() Function. split() is a string function in Perl which is used to split or you can say to cut a string into smaller sections or pieces. There are different criteria to split a string, like on a single character, a regular expression(pattern), a group of characters or on undefined value etc..
Yes, split is what you want.
@tokens = split(/:/, "a:b:c:d");
foreach my $token (@tokens) {
....
}
You can use split. You can also use it with a regex.
my @tokens = split(/:/,$string);
For more advanced parsing, I recommend Parse::RecDescent
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