From aa570fcc4ed71b305c5c89731dd400252f688598 Mon Sep 17 00:00:00 2001
From: XeonSquared <redtailedairways@gmail.com>
Date: Sun, 28 Jul 2019 19:53:25 +1000
Subject: [PATCH] replaced the editor with skex2 because it's infinitely better
 and works on PsychOS2 now

---
 exec/ed.lua | 148 ++++++++++++++++++++++++++++++++++++------------------------
 1 file changed, 90 insertions(+), 58 deletions(-)

diff --git a/exec/ed.lua b/exec/ed.lua
index 7ca3937..c0e9ae5 100644
--- a/exec/ed.lua
+++ b/exec/ed.lua
@@ -1,76 +1,108 @@
 local tA = {...}
-local fn = tA[1]
-local b,C,p = {},{},1
-local function sC()
- if p > #b then
-  p = #b
- end
- if p < 1 then
-  p = 1
+local ft, p, fp, ct, il, it, c, C = {}, 1, fp or tA[1] or "", {}, "", {}, "", C -- file table, pointer, filename, command table, input line, input table, command, content
+function ct.readfile(fp,rp)
+ if not fp then return end
+ if not rp then ft = {} end
+ local f=io.open(fp,"rb")
+ if f then
+  C=f:read("*a")
+  f:close()
+  for l in C:gmatch("[^\n]+") do
+   ft[#ft+1] = l
+  end
  end
 end
-function C.i()
- p=p-1
- sC()
+function ct.writefile(nfp)
+ if not nfp then nfp = fp end
+ print(nfp)
+ f=io.open(nfp,"wb")
+ if f then
+  for k,v in ipairs(ft) do
+   print(v)
+   f:write(v.."\n")
+  end
+  coroutine.yield()
+  f:close()
+  coroutine.yield()
+  print(f.b)
+ end
+end
+function ct.list(s,e)
+ s,e = s or 1, e or #ft
+ for i = s,e do
+  if ft[i] then
+   print(string.format("%4d\t %s",i,ft[i]))
+  end
+ end
+end
+function ct.sp(np)
+ np=tonumber(np)
+ if np then
+  if np > #ft then
+   np = #ft
+  elseif np < 1 then
+   np = 0
+  end
+  p=np
+ end
+end
+function ct.pointer(np)
+ ct.sp(np)
+ print(string.format("%4d\t %s",p,ft[p]))
+end
+function ct.insert(np)
+ ct.sp(np)
  while true do
-  io.write(tostring(p).."] ")
-  l = io.read()
+  io.write(string.format("%4d\t ",p))
+  local l=io.read()
   if l == "." then break end
-  table.insert(b,p,l)
+  table.insert(ft,p,l)
   p=p+1
  end
 end
-function C.l(s,e)
- for i = s or 1, e or #b do
-  print(string.format("%4d\t %s",i,b[i]))
- end
-end
-function C.a()
+function ct.append(np)
+ ct.sp(np)
  p=p+1
- C.i()
+ ct.insert()
 end
-function C.p(n)
- p=tonumber(n) or p
- sC()
+function ct.substitute(np)
+ ct.sp(np)
+ table.remove(ft,p)
+ ct.insert(np)
 end
-function C.d(n)
- n=tonumber(n) or 1
- for i = 1, n do
-  print(table.remove(b,p,i))
- end
+function ct.delete(np)
+ ct.sp(np)
+ table.remove(ft,p)
 end
-function C.r(f)
- local f = fs.open(f)
- if f then
-  for l in f:read("*a"):gmatch("[^\n]+") do
-   table.insert(b,p,l)
-   p=p+1
-  end
-  f:close()
- end
-end
-function C.w(f)
- local f=fs.open(f,"wb")
- if f then
-  for _,l in ipairs(b) do
-   f:write(l.."\n")
-  end
-  f:close()
- end
-end
-if fn then
- C.r(fn)
+function ct.filename(np)
+ if np then fp = np end
+ print(fp)
 end
+
+ct.o = ct.readfile
+ct.w = ct.writefile
+ct.l = ct.list
+ct.p = ct.pointer
+ct.i = ct.insert
+ct.a = ct.append
+ct.s = ct.substitute
+ct.d = ct.delete
+ct.f = ct.filename
+
+ct.readfile(fp)
+
 while true do
- io.write("ed> ")
- local l,c = io.read(),{}
- for w in l:gmatch("%S+") do
-  c[#c+1] = w
+ io.write("skex2> ")
+ il,it=io.read(),{}
+ for w in il:gmatch("%S+") do
+  it[#it+1] = w
  end
- local e=table.remove(c,1)
- if e == "q" then
+ c=table.remove(it,1)
+ if c == "quit" or c == "q" then
   break
- elseif C[e] then
-  C[e](table.unpack(c))
+ elseif c:sub(1,1) == "!" then
+  print(pcall(load(c:sub(2))))
+ elseif ct[c] ~= nil then
+  ct[c](table.unpack(it))
  end
 end