74 lines
1.3 KiB
Lua
74 lines
1.3 KiB
Lua
|
do
|
||
|
|
_G.fs = {}
|
||
|
|
local fT,hT = {},{["_c"]=0}
|
||
|
|
function fs.mount(mp,pr)
|
||
|
|
fT[mp] = pr
|
||
|
|
end
|
||
|
|
function fs.simplify(p)
|
||
|
|
local pt,npt,rp = {},{},""
|
||
|
|
for P in p:gmatch("[^/]+") do
|
||
|
|
pt[#pt+1] = P
|
||
|
|
end
|
||
|
|
for k,v in pairs(pt) do
|
||
|
|
if v == ".." then
|
||
|
|
npt[#npt] = nil
|
||
|
|
elseif v ~= "." then
|
||
|
|
npt[#npt+1] = v
|
||
|
|
end
|
||
|
|
end
|
||
|
|
for k,v in pairs(npt) do
|
||
|
|
rp=rp.."/"..v
|
||
|
|
end
|
||
|
|
if p:sub(1,1) ~= "/" then rp = rp:sub(2) end
|
||
|
|
return rp
|
||
|
|
end
|
||
|
|
function fs.resolve(p)
|
||
|
|
if p:sub(1,1) ~= "/" then -- absolute/relative path
|
||
|
|
p=(os.getenv("PWD") or "").."/"..p
|
||
|
|
end
|
||
|
|
p=fs.simplify(p)
|
||
|
|
local pt = {}
|
||
|
|
for P in p:gmatch("[^/]+") do
|
||
|
|
pt[#pt+1] = P
|
||
|
|
end
|
||
|
|
return pt, p:match("/?(.-)/"), p:match("/?.-/(.+)")
|
||
|
|
end
|
||
|
|
function fs.open(p,m)
|
||
|
|
local _,d,p = fs.resolve(p)
|
||
|
|
local d = fT[d]
|
||
|
|
local f,C=d.open(p,m),hT._c
|
||
|
|
if f then
|
||
|
|
hT._c = C + 1
|
||
|
|
hT[C] = {d,f}
|
||
|
|
return C
|
||
|
|
end
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
function fs.close(h)
|
||
|
|
if hT[h] then
|
||
|
|
hT[h][1].close(hT[h][2])
|
||
|
|
end
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
function fs.read(h,n)
|
||
|
|
if hT[h] then
|
||
|
|
return hT[h][1].read(hT[h][2],n)
|
||
|
|
end
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
function fs.readall(f)
|
||
|
|
local s=""
|
||
|
|
repeat
|
||
|
|
c=fs.read(f,2048)
|
||
|
|
s=s..c
|
||
|
|
until c==""
|
||
|
|
return s
|
||
|
|
end
|
||
|
|
function fs.write(h,d)
|
||
|
|
if hT[h] then
|
||
|
|
return hT[h][1].write(hT[h][2],d)
|
||
|
|
end
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
end
|