106 lines
2.1 KiB
Lua
106 lines
2.1 KiB
Lua
_G.buffer = {}
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--[[function buffer.create(w,c) -- worker, close
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local t={}
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t.b=""
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function t.w(s,d)
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s.b=s.b..tostring(d)
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end
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t.write = t.w
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function t.r(s,l)
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if type(l) == "number" then
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local ns,bs=s.b:sub(1,l+1),s.b:sub(l+2)
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s.b=bs
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return ns
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elseif type(l) == "string" then
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local oS=s.b
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if l == "*a" then
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s.b=""
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return oS
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elseif l == "*l" then
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S=s.b:find("\n") or #s.b
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s.b=s.b:sub(S+1)
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rS = oS:sub(1,S-1)
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if rS:len() < 1 then return nil end
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return rS
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end
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end
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end
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t.read = t.r
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t.close = c
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w(t)
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return t
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end]]--
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function buffer.ucreate()
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local b = {}
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b.b,b.s = "","open"
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function b.write(s,d)
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if b.s == "open" then
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s.b = s.b .. tostring(d)
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return(tostring(d):len())
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end
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end
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function b.read(s,l)
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if b.s == "open" then
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if type(l) == "number" then
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local ns,bs=s.b:sub(1,l),s.b:sub(l+1)
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s.b = bs
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return ns
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elseif type(l) == "string" then
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if l == "*a" then
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local oS = s.b
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s.b = ""
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return oS
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elseif l == "*l" then
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local S=s.b:find("\n") or #s.b
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local rs = s.b:sub(1,S-1)
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s.b=s.b:sub(S+1)
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return rs
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end
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end
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end
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end
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function b.close(s)
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s.s="closed"
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end
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return b
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end
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function buffer.bcreate()
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local b1, b2 = {}, {}
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b1.c, b2.c, b1.b, b2.b, b1.s, b2.s = 1, 2, "", "", "open","open"
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local function wt(s,d)
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if s.c == 1 then s = b2 else s = b1 end -- I'm a terrible person
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if s.s == "open" then
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s.b = s.b .. tostring(d)
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return(tostring(d):len())
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else return false end
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end
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local function rd(s,d)
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if s.c == 1 then s = b2 else s = b1 end
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if type(l) == "number" then
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local ns,bs=s.b:sub(1,l+1),s.b:sub(l+2)
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s.b = bs
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return ns
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elseif type(l) == "string" then
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if l == "*a" then
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local oS = s.b
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s.b = ""
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return oS
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elseif l == "*l" then
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local S=s.b:find("\n") or #s.b
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local rs = s.b:sub(1,S-1)
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s.b=s.b:sub(S+1)
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return rs
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else return end
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else return end
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end
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local function cl(s)
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b1.s = "closed"
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b2.s = "closed"
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end
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b1.write, b2.write = wt, wt
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b1.read, b2.read = rd,rd
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b1.close, b2.close = cl,cl
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return b1, b2
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end
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buffer.create = buffer.ucreate
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