I don't get it:
I have the following: 
my $equation = '979x + 87y - 8723z = 274320';
my @parts = ($equation =~ /^(?:(.*?)([xyz]))+/i);

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I thought, I would get this result: 
@parts = ('979', 'x', ' + 87', 'y', ' - 8723', 'z');

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but, instead, I get (only the last match from the string, not all of them): 
@parts = (' - 8723', 'z');

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What am I missing here?

Update

The reason, I start with ^ and do (?:)+ instead of /g is because I want to slurp the entire string into array elements.
Here is the whole story: 
my $equation = '979x + 87y - 8723z = 274320';
my @parts = ($equation =~ /^(?:(.*?)([xyz]))+(.*)=(.*)$/i);

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So, instead of getting (which is desirable): 
@parts = ('979', 'x', ' + 87', 'y', ' - 8723', 'z', ' ', ' 274320');

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I am getting: 
@parts = (' - 8723', 'z', ' ', ' 274320');

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In reply to Problem with capturing all matches with regex by igoryonya

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