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now move nselib to recover history

This commit is contained in:
fyodor
2007-11-27 22:42:39 +00:00
parent da0dd01696
commit bbb0744761
9 changed files with 0 additions and 0 deletions

View File

@@ -1,84 +0,0 @@
-- license = "See nmaps COPYING for license"
module("strbuf" ,package.seeall)
-- String buffer functions. Concatenation is not efficient in
-- lua as strings are immutable. If a large amount of '..'
-- operations are needed a string buffer should be used instead
--[[
local buf = strbuf.new()
-- from here buf may be used like a string for concatenation operations
-- (the lefthand-operand has to be a strbuf, the righthand-operand may be
-- a string or a strbuf)
-- alternativly you can assign a value (which will become the first string
-- inside the buffer) with new
local buf2 = strbuf.new('hello')
buf = buf .. 'string'
buf = buf .. 'data'
print(buf) -- default seperator is a new line
print(strbuf.dump(buf)) -- no seperator
print(strbuf.dump(buf, ' ')) -- seperated by spaces
strbuf.clear(buf)
--]]
dump = table.concat
concatbuf =function(sbuf, s)
if sbuf == s then
error("refusing to concat the same buffer (recursion)!")
end
if getmetatable(sbuf) ~= mt then
error("left-hand operand of the concat operation has to be a strbuf!")
end
if type(s)=="string" then
table.insert(sbuf, s)
elseif getmetatable(s) == mt then
for _,v in ipairs(s) do
table.insert(sbuf, v)
end
else
error("right-hand operand of concat has to be either string or strbuf!")
end
return sbuf
end
local eqbuf = function(sbuf1, sbuf2)
if getmetatable(sbuf1) ~= mt then
error("equal function expects a value of type strbuf as left-hand operand")
end
if getmetatable(sbuf1) ~= getmetatable(sbuf2) then
return false
end
if #sbuf1 ~= #sbuf2 then
return false
end
for i=1, #sbuf1 do
if sbuf1[i] ~= sbuf2[i] then
return false
end
end
return true
end
clear = function(sbuf)
for i, v in pairs(sbuf) do
sbuf[i] = nil
end
end
mt = { __concat = concatbuf, __tostring = function(s) return dump(s, '\n') end , __eq=eqbuf}
new = function(val)
local tmp ={}
setmetatable(tmp, mt)
if val ~=nil then
table.insert(tmp, val)
end
return tmp
end