59 lines
1.8 KiB
Lua
59 lines
1.8 KiB
Lua
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---------------------------------------------------
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-- Licensed under the GNU General Public License v2
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-- * (c) 2010, Adrian C. <anrxc@sysphere.org>
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---------------------------------------------------
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-- {{{ Grab environment
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local io = { open = io.open }
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local setmetatable = setmetatable
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local string = { find = string.find }
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-- }}}
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-- Mboxc: provides the count of total, old and new messages in mbox files
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-- vicious.widgets.mboxc
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local mboxc = {}
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-- {{{ Mbox count widget type
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local function worker(format, warg)
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if not warg then return end
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-- Initialize counters
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local count = { old = 0, total = 0, new = 0 }
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-- Get data from mbox files
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for i=1, #warg do
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local f = io.open(warg[i])
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while true do
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-- Read the mbox line by line, if we are going to read
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-- some *HUGE* folders then switch to reading chunks
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local lines = f:read("*line")
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if not lines then break end
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-- Find all messages
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-- * http://www.jwz.org/doc/content-length.html
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local _, from = string.find(lines, "^From[%s]")
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if from ~= nil then count.total = count.total + 1 end
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-- Read messages have the Status header
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local _, status = string.find(lines, "^Status:[%s]RO$")
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if status ~= nil then count.old = count.old + 1 end
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-- Skip the folder internal data
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local _, int = string.find(lines, "^Subject:[%s].*FOLDER[%s]INTERNAL[%s]DATA")
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if int ~= nil then count.total = count.total - 1 end
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end
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f:close()
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end
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-- Substract total from old to get the new count
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count.new = count.total - count.old
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return {count.total, count.old, count.new}
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end
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-- }}}
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return setmetatable(mboxc, { __call = function(_, ...) return worker(...) end })
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