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Add decimals to file:read("*n")

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This commit is contained in:
Soni L. 2014-12-23 14:03:49 -02:00
parent ff2d0342e1
commit d6d8d0b08a
1 changed files with 20 additions and 7 deletions
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27
src/main/resources/assets/opencomputers/loot/OpenOS/lib/buffer.lua
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@ -114,15 +114,15 @@ function buffer:read(...)
end
local buffer = ""
local first = true
local decimal = false
local last = false
local hex = false
local pat = "^[0-9]+"
local minbuf = 3 -- "+0x" (sign + hexadecimal tag)
-- this function is used to read trailing numbers (1e2, 0x1p2, etc)
local function readnum()
local function readnum(checksign)
local _buffer = ""
local sign = ""
local checksign = true
while true do
if len(self.bufferRead) == 0 then
local result, reason = readChunk()
@ -183,19 +183,33 @@ function buffer:read(...)
end
minbuf = 0
first = false
elseif decimal then
local sep = sub(self.bufferRead, 1, 1)
if sep == "." then
buffer = buffer .. sep
self.bufferRead = sub(self.bufferRead, 2)
local temp = readnum(false) -- no sign
if temp then
buffer = buffer .. temp
end
end
if not tonumber(buffer) then break end
decimal = false
last = true
minbuf = 1
elseif last then
local tag = sub(self.bufferRead, 1, 1)
if hex and (tag == "p" or tag == "P") then
local temp = sub(self.bufferRead, 1, 1)
self.bufferRead = sub(self.bufferRead, 2)
local temp2 = readnum() -- this eats the next sign if any
local temp2 = readnum(true) -- this eats the next sign if any
if temp2 then
buffer = buffer .. temp .. temp2
end
elseif tag == "e" or tag == "E" then
local temp = sub(self.bufferRead, 1, 1)
self.bufferRead = sub(self.bufferRead, 2)
local temp2 = readnum() -- this eats the next sign if any
local temp2 = readnum(true) -- this eats the next sign if any
if temp2 then
buffer = buffer .. temp .. temp2
end
@ -204,9 +218,8 @@ function buffer:read(...)
else
local x,y = string.find(self.bufferRead, pat)
if not x then
if not tonumber(buffer) then break end
minbuf = 3
last = true
minbuf = 1
decimal = true
else
buffer = buffer .. sub(self.bufferRead, 1, y)
self.bufferRead = sub(self.bufferRead, y + 1)