Text::Tabs -- expand and unexpand tabs per the unix expand(1) and unexpand(1)
$tabstop = 4; @lines_without_tabs = expand(@lines_with_tabs); @lines_with_tabs = unexpand(@lines_without_tabs);
Text::Tabs does about what the unix utilities expand(1) and unexpand(1) do. Given a line with tabs in it, expand will replace the tabs with the appropriate number of spaces. Given a line with or without tabs in it, unexpand will add tabs when it can save bytes by doing so. Invisible compression with plain ascii!
expand doesn't handle newlines very quickly -- do not feed it an entire document in one string. Instead feed it an array of lines.
David Muir Sharnoff <firstname.lastname@example.org>