working commands again, terminal fixes

A/ccp.lua

@@ -72,20 +72,37 @@ await(function()
     end
     con.print '\n'
 
-  elseif argv[1]:match '%u:' then
+  elseif argv[1]:match '^%u:$' then
     cd = argv[1]
 
   elseif argv[1]:lower() == 'type' then
     con.print(fsRead(argv[2]))
     con.print '\n'
 
-  else con.println(argv[1].. ': command not found')
+  elseif argv[1]:lower() == 'exit'
+  then runs = false
+
+  else
+    local v = (argv[1]:sub(-4) == '.lua'
+      and argv[1]
+      or argv[1]..'.lua')
+    local pat
+    if     fsHas(cd..v) then pat = cd..v
+    elseif fsHas(v) then pat = v
+    end
+    if not pat
+    then con.println(argv[1].. ': command not found')
+    else local suc, msg
+      suc, msg = pcall(select(2,pcall(load, (fsRead(pat)))))
+      if not suc then con.println 'err'
+      else suc, msg = pcall(msg, argv, con)
+        if not suc then con.println(msg) end
+      end
+    end
 
   end
 
   return not runs
 end)
 
-return sh
-
 end

main.lua

@@ -5,5 +5,7 @@ require 'src.os' (con)
 
 require 'autoexec'
 
+con.println('BP>'.. ('-'):rep(con.w - 6) ..'<BP')
+
 con.getch()
 love.event.push 'quit'

src/term/type.lua

@@ -12,21 +12,22 @@ function con.keydown(k)
 end
 
 function con.popbuf(line)
-  local v = buf[#buf-1] or ''
-  if line then
-    if v:sub(-1) == '\n' then
-      buf[#buf-1] = ''
-      return v:sub(1, -2)
-    end
-  else
-    buf[#buf] = bs(buf[#buf])
-    v = v:sub(1,1)
+  if not line and buf[#buf]
+  then return buf[#buf]:sub(1, 1) end
+
+  local v = buf[#buf-1]
+  if not v then return nil end
+
+  if v:sub(-1) == '\n' then
+    buf[#buf-1] = nil
+    v = v:sub(1, -2)
+    if not line then v = v:sub(1, 1) end
+    return v
   end
-  return nil
 end
 
 function con.type(text)
-  buf[#buf] = buf[#buf].. text
+  buf[#buf] = (buf[#buf] or '').. text
   con.print(text)
 end