regex options

["David Burgess" <dburgess@...>]

While we are on the subject of regex, could we think about
os.files() (lposix) and io.lines() with an extra optional regex
parameter?

e.g.

-- select lines with regex
for line in io.lines("filename", "^%d") do
end

-- select files with regex
for line in os.files("/", "%.lua$") do
end

db