8ce1744f82
In the original lualoader project, 'escapef' and 'escapeb' were chosen for
'escape fg' and 'escape bg'. We've carried on this naming convention, and as
our use of attributes grow the likeliness of 'escapeb'/'resetb' being
confused upon glance for 'escape bold'/'reset bold' increases.
Fix this by renaming these four functions to {escape,reset}{fg,bg} rather
than {escape,reset}{f,b} for clarity.
Reported by: dteske
119 lines
3.1 KiB
Lua
119 lines
3.1 KiB
Lua
--
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-- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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--
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-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
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-- All rights reserved.
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--
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-- Redistribution and use in source and binary forms, with or without
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-- modification, are permitted provided that the following conditions
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-- are met:
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-- 1. Redistributions of source code must retain the above copyright
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-- notice, this list of conditions and the following disclaimer.
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-- 2. Redistributions in binary form must reproduce the above copyright
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-- notice, this list of conditions and the following disclaimer in the
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-- documentation and/or other materials provided with the distribution.
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--
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-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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-- SUCH DAMAGE.
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--
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-- $FreeBSD$
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--
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local core = require("core")
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local color = {}
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-- Module exports
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color.BLACK = 0
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color.RED = 1
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color.GREEN = 2
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color.YELLOW = 3
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color.BLUE = 4
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color.MAGENTA = 5
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color.CYAN = 6
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color.WHITE = 7
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color.DEFAULT = 0
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color.BRIGHT = 1
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color.DIM = 2
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function color.isEnabled()
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local c = loader.getenv("loader_color")
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if c ~= nil then
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if c:lower() == "no" or c == "0" then
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return false
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end
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end
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return not core.isSerialBoot()
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end
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color.disabled = not color.isEnabled()
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function color.escapefg(color_value)
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if color.disabled then
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return color_value
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end
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return core.KEYSTR_CSI .. "3" .. color_value .. "m"
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end
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function color.resetfg()
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if color.disabled then
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return ''
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end
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return core.KEYSTR_CSI .. "39m"
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end
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function color.escapebg(color_value)
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if color.disabled then
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return color_value
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end
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return core.KEYSTR_CSI .. "4" .. color_value .. "m"
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end
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function color.resetbg()
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if color.disabled then
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return ''
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end
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return core.KEYSTR_CSI .. "49m"
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end
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function color.escape(fg_color, bg_color, attribute)
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if color.disabled then
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return ""
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end
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if attribute == nil then
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attribute = ""
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else
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attribute = attribute .. ";"
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end
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return core.KEYSTR_CSI .. attribute ..
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"3" .. fg_color .. ";4" .. bg_color .. "m"
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end
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function color.default()
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if color.disabled then
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return ""
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end
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return color.escape(color.WHITE, color.BLACK, color.DEFAULT)
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end
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function color.highlight(str)
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if color.disabled then
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return str
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end
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-- We need to reset attributes as well as color scheme here, just in
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-- case the terminal defaults don't match what we're expecting.
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return core.KEYSTR_CSI .. "1m" .. str .. core.KEYSTR_CSI .. "22m"
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end
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return color
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