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All the Perl that's Practical to Extract and Report

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  • by Damian (784) on 2003.05.23 22:07 (#20495)
    As chromatic points out, matching regexes against an input stream complicates stream buffering considerably. But it's certainly not impossible, if you're prepared to put up with potentially having to buffer an entire input stream in the pathological cases.

    Greedy regexes are troublesome for the same reason: in the edge cases you potentially have to scan an entire input to determine where to stop reading.

    Nevertheless, despite those problems, I'm confident we'll be able to permit Perl 6 input streams to use a regex as an input record separator (they'll be per-filehandle, not global, in Perl 6).