Lintian::SlidingWindow3

Usage

    use Lintian::SlidingWindow;
    my $sfd = Lintian::SlidingWindow->new('<','someevilfile.c', sub { $_ = lc($_); });
    my $window;
    while ($window = $sfd->readwindow) {
       if (index($window, 'evil') > -1) {
           if($window =~
                 m/software \s++ shall \s++
                   be \s++ used \s++ for \s++ good \s*+ ,?+ \s*+
                   not \s++ evil/xsim) {
              # do something like : tag 'license-problem-json-evil';
           }
       }
    }

Overview

Lintian::SlidingWindow provides a way of matching some pattern, including multi line pattern, without needing to fully load the file in memory.

Class methods

new(HANDLE[, BLOCKSUB[, BLOCKSIZE]])

Create a new sliding window by reading from a given HANDLE, which must be open for reading. Optionally run BLOCKSUB against each block. Note that BLOCKSUB should apply transform byte by byte and does not depend of context.

Each window consists of up to two blocks of BLOCKSIZE characters.

Instance methods

readwindow

Return a new block of sliding window. Return undef at end of file.

"blocksize"

blocknumber

handle

blocksub

Diagnostics

no data type specified