From 3bc4ceae15e92350b3757efc1fc663b8cb32b831 Mon Sep 17 00:00:00 2001
From: XeonSquared <redtailedairways@gmail.com>
Date: Mon, 26 Jun 2017 12:47:16 +0000
Subject: [PATCH] added io library and a skex version that uses it

---
 modules/applications/skex2-io.lua | 65 +++++++++++++++++++++++++++++++
 modules/library/buffer.lua        | 31 +++++++++++++++
 modules/library/io.lua            | 34 ++++++++++++++++
 3 files changed, 130 insertions(+)
 create mode 100644 modules/applications/skex2-io.lua
 create mode 100644 modules/library/buffer.lua
 create mode 100644 modules/library/io.lua

diff --git a/modules/applications/skex2-io.lua b/modules/applications/skex2-io.lua
new file mode 100644
index 0000000..2494894
--- /dev/null
+++ b/modules/applications/skex2-io.lua
@@ -0,0 +1,65 @@
+function skex(s)
+ local c,cs,cT,lT,lP="","",{},{},1
+ local function lf(s)
+  local f=io.open(s,"rb")
+  c=f:read("*a")
+  f:close()
+ end
+ local function wf(s)
+  local f,c=io.open(s,"wb")
+  for k,v in ipairs(lT) do f:write(v.."\n") end
+  f:close()
+ end
+ if s then
+  lf(s)
+  for l in c:gmatch("(.-)\n") do lT[#lT+1]=l end
+ end
+ while true do
+  cs=readln()
+  cT={}
+  for w in cs:gmatch("%S+") do cT[#cT+1]=w end
+  if cT[1] == "q" then break
+  elseif cT[1] == "l" then
+   for i = (TN(cT[2]) or 1), (TN(cT[3]) or #lT) do
+    print(TS(i).."\t"..(lT[i] or ""))
+   end
+  elseif cT[1] == "a" or cT[1] == "i" or cT[1] == "s" then
+   if TN(cT[2]) then lP=TN(cT[2]) end
+   if cT[1] == "s" then for i = 1,TN(cT[3]) do T.remove(lT,i+(TN(cT[2])-1)) end end
+   if cT[1] == "a" then lP=lP+1 end
+   while true do
+    cs=readln()
+    if cs~="." then
+     T.insert(lT,lP,cs)
+     lP=lP+1
+    else break end
+   end
+  elseif cT[1] == "f" then
+   s=cT[2] or s
+   print(s)
+  elseif cT[1] == "e" then
+   c=""
+   for k,v in ipairs(lT) do c=c..v.."\n" end
+   print(pcall(load(c)))
+  elseif cT[1] == "r" then
+   s=cT[2] or s
+   wf(s)
+  elseif cT[1] == "w" then
+   s=cT[2] or s
+   wf(s)
+  elseif cT[1] == "d" then
+   for i = 1, TN(cT[3])-TN(cT[2]) do
+    T.remove(lT,cT[2])
+   end
+  elseif cT[1] == "p" then
+   lP=TN(cT[2]) or lP
+   print(lP)
+  elseif cs:sub(1,1) == "!" then
+   c=""
+   for k,v in ipairs(lT) do c=c..v.."\n" end
+   print(pcall(load(cs:sub(2))))
+  else
+   print("?")
+  end
+ end
+end
diff --git a/modules/library/buffer.lua b/modules/library/buffer.lua
new file mode 100644
index 0000000..e886bb1
--- /dev/null
+++ b/modules/library/buffer.lua
@@ -0,0 +1,31 @@
+function cB(w,c)
+ local t={}
+ t.b=""
+ function t.w(s,d)
+  s.b=s.b..TS(d)
+ end
+ t.write = t.w
+ function t.r(s,l)
+  if type(l) == "number" then
+   local ns,bs=s.b:sub(1,l+1),s.b:sub(l+2)
+   s.b=bs
+   return ns
+  elseif type(l) == "string" then
+   local oS=s.b
+   if l == "*a" then
+    s.b=""
+    return oS
+   elseif l == "*l" then
+    S=s.b:find("\n") or #s.b
+    s.b=s.b:sub(S+1)
+    rS = oS:sub(1,S-1)
+    if rS:len() < 1 then return nil end
+    return rS
+   end
+  end
+ end
+ t.read = t.r
+ t.close = c
+ w(t)
+ return t
+end
diff --git a/modules/library/io.lua b/modules/library/io.lua
new file mode 100644
index 0000000..ae42c3d
--- /dev/null
+++ b/modules/library/io.lua
@@ -0,0 +1,34 @@
+_G.io = {}
+io.write = write
+function io.open(n,m)
+ m=m or "rb"
+ local h=fopen(n,m)
+ if h then
+ if h and m:sub(1,1) == "w" then
+  return cB(function(bt)
+   bt.s="o"
+   s("io worker: "..n,function()
+   while true do
+    if bt.s ~= "o" and bt.b == "" then fclose(h) break end
+    local nd = bt:read(2048)
+    if nd ~= nil and nd ~= "" then
+     fwrite(h,nd)
+    end
+    C.yield()
+   end
+  end) end,function(bt) bt.s="c" end)
+ elseif h and m:sub(1,1) == "r" then
+  return cB(function(bt)
+   local sb = ""
+   repeat
+    bt.b=bt.b..sb
+    sb=fread(h,2048)
+   until sb == "" or sb == nil
+   fclose(h)
+   C.yield()
+  end,function() end)
+ end
+ else
+  return false
+ end
+end