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--[[
Copyright 2018 ARATA Mizuki
This file is part of ClutTeX.
ClutTeX is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ClutTeX is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ClutTeX. If not, see <http://www.gnu.org/licenses/>.
]]
local use_colors = false
local function set_colors(mode)
local M
if mode == "always" then
M = require "texrunner.isatty"
use_colors = true
if use_colors and M.enable_virtual_terminal then
local succ = M.enable_virtual_terminal(io.stderr)
if not succ and CLUTTEX_VERBOSITY >= 2 then
io.stderr:write("ClutTeX: Failed to enable virtual terminal\n")
end
end
elseif mode == "auto" then
M = require "texrunner.isatty"
use_colors = M.isatty(io.stderr)
if use_colors and M.enable_virtual_terminal then
use_colors = M.enable_virtual_terminal(io.stderr)
if not use_colors and CLUTTEX_VERBOSITY >= 2 then
io.stderr:write("ClutTeX: Failed to enable virtual terminal\n")
end
end
elseif mode == "never" then
use_colors = false
else
error "The value of --color option must be one of 'auto', 'always', or 'never'."
end
end
-- ESCAPE: hex 1B = dec 27 = oct 33
local CMD = {
reset = "\027[0m",
underline = "\027[4m",
fg_black = "\027[30m",
fg_red = "\027[31m",
fg_green = "\027[32m",
fg_yellow = "\027[33m",
fg_blue = "\027[34m",
fg_magenta = "\027[35m",
fg_cyan = "\027[36m",
fg_white = "\027[37m",
fg_reset = "\027[39m",
bg_black = "\027[40m",
bg_red = "\027[41m",
bg_green = "\027[42m",
bg_yellow = "\027[43m",
bg_blue = "\027[44m",
bg_magenta = "\027[45m",
bg_cyan = "\027[46m",
bg_white = "\027[47m",
bg_reset = "\027[49m",
fg_x_black = "\027[90m",
fg_x_red = "\027[91m",
fg_x_green = "\027[92m",
fg_x_yellow = "\027[93m",
fg_x_blue = "\027[94m",
fg_x_magenta = "\027[95m",
fg_x_cyan = "\027[96m",
fg_x_white = "\027[97m",
bg_x_black = "\027[100m",
bg_x_red = "\027[101m",
bg_x_green = "\027[102m",
bg_x_yellow = "\027[103m",
bg_x_blue = "\027[104m",
bg_x_magenta = "\027[105m",
bg_x_cyan = "\027[106m",
bg_x_white = "\027[107m",
}
local function exec_msg(commandline)
if use_colors then
io.stderr:write(CMD.fg_x_white, CMD.bg_red, "[EXEC]", CMD.reset, " ", CMD.fg_cyan, commandline, CMD.reset, "\n")
else
io.stderr:write("[EXEC] ", commandline, "\n")
end
end
local function error_msg(...)
local message = table.concat({...}, "")
if use_colors then
io.stderr:write(CMD.fg_x_white, CMD.bg_red, "[ERROR]", CMD.reset, " ", CMD.fg_red, message, CMD.reset, "\n")
else
io.stderr:write("[ERROR] ", message, "\n")
end
end
local function warn_msg(...)
local message = table.concat({...}, "")
if use_colors then
io.stderr:write(CMD.fg_x_white, CMD.bg_red, "[WARN]", CMD.reset, " ", CMD.fg_blue, message, CMD.reset, "\n")
else
io.stderr:write("[WARN] ", message, "\n")
end
end
local function diag_msg(...)
local message = table.concat({...}, "")
if use_colors then
io.stderr:write(CMD.fg_x_white, CMD.bg_red, "[DIAG]", CMD.reset, " ", CMD.fg_blue, message, CMD.reset, "\n")
else
io.stderr:write("[DIAG] ", message, "\n")
end
end
local function info_msg(...)
local message = table.concat({...}, "")
if use_colors then
io.stderr:write(CMD.fg_x_white, CMD.bg_red, "[INFO]", CMD.reset, " ", CMD.fg_magenta, message, CMD.reset, "\n")
else
io.stderr:write("[INFO] ", message, "\n")
end
end
return {
set_colors = set_colors,
exec = exec_msg,
error = error_msg,
warn = warn_msg,
diag = diag_msg,
info = info_msg,
}
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