56 lines
1.8 KiB
Lua
56 lines
1.8 KiB
Lua
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-- widget type providing the subject of last e-mail in a mbox file
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-- Copyright (C) 2010 Adrian C. <anrxc@sysphere.org>
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-- Copyright (C) 2017 mutlusun <mutlusun@github.com>
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-- Copyright (C) 2018 Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
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--
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-- This file is part of Vicious.
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--
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-- Vicious is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as
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-- published by the Free Software Foundation, either version 2 of the
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-- License, or (at your option) any later version.
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--
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-- Vicious is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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-- {{{ Grab environment
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local type = type
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local io = { open = io.open }
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local helpers = require("vicious.helpers")
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-- }}}
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-- Initialize variables
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local subject = "N/A"
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-- {{{ Mailbox widget type
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return helpers.setcall(function (format, warg)
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if not warg then return end
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local f = io.open(type(warg) == "table" and warg[1] or warg)
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f:seek("end", -30720)
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-- mbox could be huge, get a 30kb chunk from EOF
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-- * attachment could be much bigger than 30kb
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local txt = f:read("*all")
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f:close()
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-- Find all Subject lines
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for i in txt:gmatch"Subject: ([^\n]*)" do subject = i end
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-- Check if we should scroll, or maybe truncate
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if type(warg) == "table" then
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if warg[3] ~= nil then
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subject = helpers.scroll(subject, warg[2], warg[3])
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else
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subject = helpers.truncate(subject, warg[2])
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end
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end
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return { subject }
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end)
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-- }}}
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