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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 string.lua
--
-- define module: string
local string = string or {}
-- find the last substring with the given pattern
function string.find_last(self, pattern, plain)
-- find the last substring
local curr = 0
repeat
local next = self:find(pattern, curr + 1, plain)
if next then
curr = next
end
until (not next)
-- found?
if curr > 0 then
return curr
end
end
-- split string with the given pattern
function string.split(self, pattern)
-- split it
local list = {}
self:gsub("[^" .. pattern .."]+", function(v) table.insert(list, v) end )
return list
end
-- trim the spaces
function string.trim(self)
return (self:gsub("^%s*(.-)%s*$", "%1"))
end
-- trim the left spaces
function string.ltrim(self)
return (self:gsub("^%s*", ""))
end
-- trim the right spaces
function string.rtrim(self)
local n = #self
while n > 0 and s:find("^%s", n) do n = n - 1 end
return self:sub(1, n)
end
-- append a substring with a given separator
function string.append(self, substr, separator)
-- check
assert(self)
-- not substr? return self
if not substr then
return self
end
-- append it
local s = self
if #s == 0 then
s = substr
else
s = string.format("%s%s%s", s, separator or "", substr)
end
-- ok
return s
end
-- return module: string
return string
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