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|
--!The Automatic Cross-platform Build Tool
--
-- XMake is free software; you can redistribute it and/or modify
-- it under the terms of the GNU Lesser General Public License as published by
-- the Free Software Foundation; either version 2.1 of the License, or
-- (at your option) any later version.
--
-- XMake 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 Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public License
-- along with XMake;
-- If not, see <a href="http://www.gnu.org/licenses/"> http://www.gnu.org/licenses/</a>
--
-- Copyright (C) 2009 - 2015, ruki All rights reserved.
--
-- @author ruki
-- @file utils.lua
--
-- define module: utils
local utils = utils or {}
-- the printf function
function utils.printf(msg, ...)
print(string.format(msg, ...))
end
-- the verbose function
function utils.verbose(msg, ...)
if xmake._OPTIONS.verbose then
print(string.format(msg, ...))
end
end
-- the error function
function utils.error(msg, ...)
print("error: " .. string.format(msg, ...))
end
-- the warning function
function utils.warning(msg, ...)
print("warning: " .. string.format(msg, ...))
end
-- ifelse, a? b : c
function utils.ifelse(a, b, c)
if a then return b else return c end
end
-- dump object with the level
function utils._dump_with_level(object, exclude, level)
-- check
assert(object)
-- dump string
if type(object) == "string" then
io.write(string.format("%q", object))
-- dump boolean
elseif type(object) == "boolean" then
io.write(tostring(object))
-- dump number
elseif type(object) == "number" then
io.write(object)
-- dump function
elseif type(object) == "function" then
io.write("<function>")
-- dump table
elseif type(object) == "table" then
-- dump head
io.write("\n")
for l = 1, level do
io.write(" ")
end
io.write("{\n")
-- dump body
local i = 0
for k, v in pairs(object) do
-- exclude some keys
if not exclude or type(k) ~= "string" or not k:find(exclude) then
-- dump spaces
for l = 1, level do
io.write(" ")
end
-- dump separator
io.write(utils.ifelse(i == 0, " ", ", "))
-- dump key
if type(k) == "string" then
io.write(k, " = ")
end
-- dump value
if not utils._dump_with_level(v, exclude, level + 1) then
return false
end
-- dump newline
io.write("\n")
i = i + 1
end
end
-- dump tail
for l = 1, level do
io.write(" ")
end
io.write("}\n")
else
-- error
utils.error("invalid object type: %s", type(object))
return false
end
-- ok
return true
end
-- dump object
function utils.dump(object, exclude)
-- dump it
utils._dump_with_level(object, exclude, 0)
-- return it
return object
end
-- wrap object to table
function utils.wrap(object)
-- check
assert(object)
-- wrap it if not table
if type(object) ~= "table" then
return {object}
end
end
-- return module: utils
return utils
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