diff --git a/examples/bad_shell.lua b/examples/bad_shell.lua
new file mode 100644
index 0000000..eb5bbd9
--- /dev/null
+++ b/examples/bad_shell.lua
@@ -0,0 +1 @@
+print("GCC Version: $[[gc -v]]") --yikes
diff --git a/examples/shell_output.lua b/examples/shell_output.lua
new file mode 100644
index 0000000..d60a31c
--- /dev/null
+++ b/examples/shell_output.lua
@@ -0,0 +1,4 @@
+--Using the command
+print("Compiled with LuaComp $[[/tmp/luacomp -v]]")
+--Or using the shell vars
+print("Compiled with LuaComp $[{LUACOMP_VERSION}]")
\ No newline at end of file
diff --git a/src/application.lua b/src/application.lua
new file mode 100644
index 0000000..84a09c0
--- /dev/null
+++ b/src/application.lua
@@ -0,0 +1,77 @@
+local function dprint(...)
+	local args = {...}
+	for i=1, #args do
+		args[i] = tostring(args[i])
+	end
+	if (VERBOSE) then
+		io.stderr:write("DEBUG\t"..table.concat(args,"\t"),"\n")
+	end
+end
+
+--#include "src/shell_var.lua"
+--#include "src/luacomp_vars.lua"
+--#include "src/ast.lua"
+--#include "src/generator.lua"
+--#include "src/directive_provider.lua"
+--#include "src/cfg/minifier_providers.lua"
+
+local parser = argparse(arg[0], "LuaComp v"..LUACOMP_VERSION.."\nA Lua preprocessor+postprocessor.")
+parser:argument("input", "Input file (- for STDIN)")
+parser:option("-O --output", "Output file. (- for STDOUT)", "-")
+parser:option("-m --minifier", "Sets the minifier", "none")
+parser:option("-x --executable", "Makes the script an executable (default: current lua version)"):args "?"
+parser:flag("--generator-code", "Outputs only the code from the generator.")
+parser:flag("--verbose", "Verbose output. (Debugging)"):action(function() VERBOSE=true end)
+parser:flag("-v --version", "Prints the version and exits"):action(function()
+	print(LUACOMP_VERSION)
+	os.exit(0)
+end)
+local args = parser:parse()
+local file = args.input
+_sv("LUACOMP_MINIFIER", args.minifier)
+local f
+if (file ~= "-") then
+	f = io.open(file, "r")
+	if not f then
+		io.stderr:write("ERROR: File `"..file.."' does not exist!\n")
+		os.exit(1)
+	end
+else
+	f = io.stdin
+end
+dprint("Generating AST...")
+local ast = mkast(f, file)
+dprint("Generating code...")
+local ocode = generate(ast, args.generator_code)
+
+local minifier = providers[args.minifier]
+dprint("Minifier: "..args.minifier, minifier)
+if not minifier then
+	io.stderr:write("ERROR: Minifier `"..args.minifier.."' not found!\n")
+	os.exit(1)
+end
+dprint("Running...")
+local rcode, err = minifier(ocode)
+
+if (not rcode) then
+	io.stderr:write("ERROR: Error for minifier `"..args.minifier.."': \n")
+	io.stderr:write(err)
+	os.exit(1)
+end
+
+local of
+if (args.output == "-") then
+	of = io.stdout
+else
+	of = io.open(args.output, "w")
+end
+local ver = _VERSION:lower():gsub(" ", "")
+if jit then
+	ver = "luajit"
+end
+if (args.executable) then
+	of:write("#!/usr/bin/env ", args.executable[1] or ver, "\n")
+end
+of:write(rcode)
+of:close()
+f:close()
\ No newline at end of file
diff --git a/src/ast.lua b/src/ast.lua
index 23cc348..53f0920 100644
--- a/src/ast.lua
+++ b/src/ast.lua
@@ -41,9 +41,9 @@ local ws = {
 local function parse_hex(f)
 	local lc = " "
 	local hex = ""
-	while (48 <= lc:byte() and lc:byte() <= 57) or (97 <= lc:byte() and lc:byte() <= 102) or (65 <= lc:byte() and lc:byte() <= 70) do
+	while (48 <= lc:byte() and lc:byte() <= 57) or (97 <= lc:byte() and lc:byte() <= 102) or (65 <= lc:byte() and lc:byte() <= 70) and lc do
 		lc = nextc(f)
-		if (48 <= lc:byte() and lc:byte()) <= 57 or (97 <= lc:byte() and lc:byte() <= 102) or (65 <= lc:byte() and lc:byte() <= 70) then
+		if (48 <= lc:byte() and lc:byte()) <= 57 or (97 <= lc:byte() and lc:byte() <= 102) or (65 <= lc:byte() and lc:byte() <= 70) and lc then
 			hex = hex .. lc
 		end
 	end
@@ -53,9 +53,9 @@ end
 local function parse_number(f, c)
 	local lc = " "
 	local num = c
-	while 48 <= lc:byte() and lc:byte() <= 57 do
+	while 48 <= lc:byte() and lc:byte() <= 57 and lc do
 		lc = nextc(f)
-		if (48 <= lc:byte() and lc:byte() <= 57) then
+		if (48 <= lc:byte() and lc:byte() <= 57) and lc then
 			num = num .. lc
 		end
 	end
@@ -79,6 +79,8 @@ local function parse_dblquote(f)
 		local c = nextc(f)
 		if (peek(f) == "\n" or peek(f) == "\r") then
 			return nil, "Unexpected end of line"
+		elseif (not peek(f)) then
+			return nil, "Unexpected end of file"
 		end
 		if (c == "\\") then
 			if (esct[peek(f)]) then
@@ -100,6 +102,8 @@ local function parse_snglquote(f)
 		local c = nextc(f)
 		if (peek(f) == "\n" or peek(f) == "\r") then
 			return nil, "Unexpected end of line"
+		elseif (not peek(f)) then
+			return nil, "Unexpected end of file"
 		end
 		if (c == "\\") then
 			if (esct[peek(f)]) then
@@ -120,6 +124,8 @@ local function parse_envarg(f)
 	while peek(f) ~= ")" do
 		if (peek(f) == "\n" or peek(f) == "\r") then
 			return nil, "Unexpected end of line"
+		elseif (not peek(f)) then
+			return nil, "Unexpected end of file"
 		end
 		val = val .. nextc(f)
 	end
@@ -166,6 +172,14 @@ local function parse_directive(f)
 			local val = parse_envarg(f)
 			if not os.getenv(val) then return nil, "Enviroment variable `"..val.."' does not exist." end
 			args[#args+1] = os.getenv(val)
+		elseif lc == "@" and peek(f, 2) == "[{" then
+			skip(f, 2)
+			local val = ""
+			while peek(f, 2) ~= "}]" do
+				val = val .. nextc(f)
+			end
+			args[#args+1] = {type="lua_var", val}
+			skip(f, 2)
 		elseif not ws[lc] then
 			return nil, "Syntax error"
 		end
@@ -248,6 +262,24 @@ local function mkast(f, n)
 			end
 			tree[#tree+1] = {type="lua_r", code=val, file=n, line=lpos}
 			skip(f, 2)
+		elseif (lc == "$" and peek(f, 2) == "[[") then
+			add_code()
+			skip(f, 2)
+			local val = ""
+			while peek(f, 2) ~= "]]" do
+				val = val .. nextc(f)
+			end
+			tree[#tree+1] = {type="shell", code=val, file=n, line=lpos}
+			skip(f, 2)
+		elseif (lc == "$" and peek(f, 2) == "[{") then
+			add_code()
+			skip(f, 2)
+			local val = ""
+			while peek(f, 2) ~= "}]" do
+				val = val .. nextc(f)
+			end
+			tree[#tree+1] = {type="shell_r", code=val, file=n, line=lpos}
+			skip(f, 2)
 		elseif (lc == "\r" or lc == "\n") then
 			if (lc == "\r" and peek(f) == "\n") then
 				skip(f)
diff --git a/src/cfg/minifier_providers.lua b/src/cfg/minifier_providers.lua
index cb1a3e5..1c03c45 100644
--- a/src/cfg/minifier_providers.lua
+++ b/src/cfg/minifier_providers.lua
@@ -26,6 +26,64 @@ function providers.luamin(cin)
 	local lmh = io.popen("luamin -f "..fn.." 2>&1", "r")
 	local dat = lmh:read("*a")
 	local stat, _, code = lmh:close()
+	os.remove(fn)
+	if (code ~= 0) then
+		return false, dat
+	end
+	return dat
+end
+
+function providers.bython(cin)
+	local fn = os.tmpname()
+	local fo = os.tmpname()
+	local fh = io.open(fn, "w")
+	fh:write(cin)
+	fh:close()
+	local lmh = io.popen("bython -c "..fn.." "..fo.." 2>&1", "r")
+	local out = lmh:read("*a")
+	local stat, _, code = lmh:close()
+	os.remove(fn)
+	if (code ~= 0) then
+		os.remove(fo)
+		return false, out
+	end
+	fh = io.open(fo, "r")
+	local dat = fh:read("*a")
+	fh:close()
+	os.remove(fo)
+	return dat
+end
+
+function providers.bython2(cin)
+	local fn = os.tmpname()
+	local fo = os.tmpname()
+	local fh = io.open(fn, "w")
+	fh:write(cin)
+	fh:close()
+	local lmh = io.popen("bython -c2 "..fn.." "..fo.." 2>&1", "r")
+	local out = lmh:read("*a")
+	local stat, _, code = lmh:close()
+	os.remove(fn)
+	if (code ~= 0) then
+		os.remove(fo)
+		return false, out
+	end
+	fh = io.open(fo, "r")
+	local dat = fh:read("*a")
+	fh:close()
+	os.remove(fo)
+	return dat
+end
+
+function providers.uglify(cin)
+	local fn = os.tmpname()
+	local fh = io.open(fn, "w")
+	fh:write(cin)
+	fh:close()
+	local lmh = io.popen("uglifyjs --compress --mangle -- "..fn.." 2>&1", "r")
+	local dat = lmh:read("*a")
+	local stat, _, code = lmh:close()
+	os.remove(fn)
 	if (code ~= 0) then
 		return false, dat
 	end
diff --git a/src/directive_provider.lua b/src/directive_provider.lua
index f895ce6..3dcbec2 100644
--- a/src/directive_provider.lua
+++ b/src/directive_provider.lua
@@ -16,6 +16,7 @@
    limitations under the License.
 ]]
 
----#include "directives/define.lua"
---#include "directives/include.lua"
---#include "directives/loadmod.lua"
+--#include "src/directives/define.lua"
+--#include "src/directives/include.lua"
+--#include "src/directives/loadmod.lua"
+--#include "src/directives/error.lua"
diff --git a/src/directives/define.lua b/src/directives/define.lua
index ab1625f..3e7a8f2 100644
--- a/src/directives/define.lua
+++ b/src/directives/define.lua
@@ -1,4 +1,4 @@
 function directives.define(env, evar, val)
-	os.setenv(evar, val)
+	svar.set(evar, val)
 	return true
 end
\ No newline at end of file
diff --git a/src/directives/error.lua b/src/directives/error.lua
new file mode 100644
index 0000000..fa86c82
--- /dev/null
+++ b/src/directives/error.lua
@@ -0,0 +1,3 @@
+function directives.error(env, err)
+	return false, err
+end
\ No newline at end of file
diff --git a/src/generator.lua b/src/generator.lua
index c58e6ff..f9d18f1 100644
--- a/src/generator.lua
+++ b/src/generator.lua
@@ -20,9 +20,17 @@ local function lua_escape(code)
    return code:gsub("\\", "\\\\"):gsub("\"", "\\\""):gsub("\n", "\\n")
 end
 
+local function shell_escape(code)
+   return code:gsub("\\%[", "[")
+end
+
+local function svar_escape(code)
+   return code:gsub("\"", "\\\""):gsub("\'", "\\\'"):gsub("`", "\\`")
+end
+
 local directives = {}
 
-local function generate(ast)
+local function generate(ast, gencode)
    local lua_code = ""
    for i=1, #ast do
       local leaf = ast[i]
@@ -36,7 +44,9 @@ local function generate(ast)
                stargs[i] = "\""..lua_escape(arg).."\""
             elseif (type(arg) == "number") then
                stargs[i] = tostring(arg)
-            end
+            elseif (type(arg) == "table" and arg.type=="lua_var") then
+               stargs[i] = arg[1]
+            end 
          end
          lua_code = lua_code .. "call_directive(\""..leaf.file..":"..tostring(leaf.line).."\",\""..leaf.name.."\","..table.concat(stargs, ",")..")"
       elseif (leaf.type == "envvar") then
@@ -45,6 +55,10 @@ local function generate(ast)
          lua_code = lua_code .. "put_code(\""..leaf.file..":"..tostring(leaf.line).."\",\"" .. lua_escape(leaf.data) .. "\")"
       elseif (leaf.type == "lua_r") then
          lua_code = lua_code .. "put_code(\""..leaf.file..":"..tostring(leaf.line).."\",tostring("..leaf.code.."))"
+      elseif (leaf.type == "shell") then
+         lua_code = lua_code .. "put_shell_out(\""..leaf.file..":"..tostring(leaf.line).."\",\""..lua_escape(leaf.code).."\")"
+      elseif (leaf.type == "shell_r") then
+         lua_code = lua_code .. "put_svar(\""..leaf.file..":"..tostring(leaf.line).."\",\""..leaf.code.."\")"
       else
          io.stderr:write("ERROR: Internal catastrophic failure, unknown type "..leaf.type.."\n")
          os.exit(1)
@@ -56,6 +70,9 @@ local function generate(ast)
       io.stdout:write("ERROR: "..fpos..": "..err.."\n")
       os.exit(1)
    end
+   local function bitch(fpos, err)
+      io.stdout:write("WARNING: "..fpos..": "..err.."\n")
+   end
    local function call_directive(fpos, dname, ...)
       if (not directives[dname]) then
          run_away_screaming(fpos, "Invalid directive name `"..dname.."'")
@@ -66,7 +83,7 @@ local function generate(ast)
       end
    end
    local function put_env(fpos, evar)
-      local e = os.getenv(evar)
+      local e = svar.get(evar)
       if not e then
          run_away_screaming(fpos, "Enviroment variable `"..evar.."' does not exist!")
       end
@@ -75,15 +92,56 @@ local function generate(ast)
    local function put_code(fpos, code)
       env.code = env.code .. code --not much that can fail here...
    end
+   local function put_shell_out(fpos, code)
+      local tname = os.tmpname()
+      local f = os.tmpname()
+      local fh = io.open(f, "w")
+      fh:write(code)
+      fh:close()
+      os.execute("chmod +x "..f)
+      local vars = svar.get_all()
+      local vstr = ""
+      for k, v in pairs(vars) do
+         vstr = vstr .. k.."=".."\""..svar_escape(v).."\" "
+      end
+      dprint("Shell", vstr .. f.." 2>"..tname)
+      local h = io.popen(vstr .. f.." 2>"..tname, "r")
+      local output = h:read("*a"):gsub("\n$", "")
+      local ok, sig, code = h:close()
+      fh = io.open(tname, "r")
+      local stderr = fh:read("*a"):gsub("\n$", "")
+      fh:close()
+      os.remove(f)
+      os.remove(tname)
+      if not ok then
+         run_away_screaming(fpos, "Shell exit code "..code..", SIG_"..sig:upper().."\n"..stderr)
+      elseif #stderr > 0 then
+         bitch(fpos, stderr)
+      end
+      env.code = env.code .. output
+   end
+   local function put_svar(fpos, evar)
+      local e = svar.get(evar)
+      if not e then
+         run_away_screaming(fpos, "Enviroment variable `"..evar.."' does not exist!")
+      end
+      env.code = env.code .. e
+   end
    local fenv = {}
    for k, v in pairs(_G) do
       fenv[k] = v
    end
+   if gencode then
+      return lua_code
+   end
    fenv._G = fenv
    fenv._ENV = fenv
    fenv.call_directive = call_directive
    fenv.put_code = put_code
    fenv.put_env = put_env
+   fenv.put_svar = put_svar
+   fenv.put_shell_out = put_shell_out
+   fenv._GENERATOR=env
    local func = assert(load(lua_code, "=(generated code)", "t", fenv))
    func()
    return env.code
diff --git a/src/init.lua b/src/init.lua
index 54a1b69..2a56c2c 100644
--- a/src/init.lua
+++ b/src/init.lua
@@ -15,58 +15,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 ]]
-
---#include "luacomp_vars.lua"
---#include "ast.lua"
---#include "generator.lua"
---#include "directive_provider.lua"
---#include "cfg/minifier_providers.lua"
-
 local argparse = require("argparse")
 
-local parser = argparse(arg[0], "LuaComp v"..LUACOMP_VERSION.."\nA Lua preprocessor+postprocessor.")
-parser:argument("input", "Input file (- for STDIN)")
-parser:option("-O --output", "Output file. (- for STDOUT)", "-")
-parser:option("-m --minifier", "Sets the minifier", "none")
-parser:option("-x --executable", "Makes the script an executable (default: current lua version)"):args "?"
-local args = parser:parse()
-local file = args.input
-local f
-if (file ~= "-") then
-	f = io.open(file, "r")
-	if not f then
-		io.stderr:write("ERROR: File `"..file.."' does not exist!\n")
-		os.exit(1)
-	end
-else
-	f = io.stdin
-end
-local ast = mkast(f, file)
-local ocode = generate(ast)
-
-local minifier = providers[args.minifier]
-
-local rcode, err = minifier(ocode)
-
-if (not rcode) then
-	io.stderr:write("Error for minifier `"..args.minifier.."': \n")
-	io.stderr:write(err)
-	os.exit(1)
-end
-
-local of
-if (args.output == "-") then
-	of = io.stdout
-else
-	of = io.open(args.output, "w")
-end
-local ver = _VERSION:lower():gsub(" ", "")
-if jit then
-	ver = "luajit"
-end
-if (args.executable) then
-	of:write("#!/usr/bin/env ", args.executable[1] or ver, "\n")
-end
-of:write(rcode)
-of:close()
-f:close()
+--#include "src/application.lua"
+---#include "src/application.lua" @[{test}]
diff --git a/src/luacomp_vars.lua b/src/luacomp_vars.lua
index afd67ae..152635b 100644
--- a/src/luacomp_vars.lua
+++ b/src/luacomp_vars.lua
@@ -1,10 +1,11 @@
 local function _sv(k, v)
 	_G[k] = v
+	svar.set(k, v)
 	--os.setenv(k, tostring(v))
 end
 
 _sv("LUACOMP_V_MAJ", 1)
-_sv("LUACOMP_V_MIN", 1)
+_sv("LUACOMP_V_MIN", 2)
 _sv("LUACOMP_V_PAT", 0)
 _sv("LUACOMP_VERSION", LUACOMP_V_MAJ.."."..LUACOMP_V_MIN.."."..LUACOMP_V_PAT)
 _sv("LUACOMP_NAME", "LuaComp")
\ No newline at end of file
diff --git a/src/shell_var.lua b/src/shell_var.lua
new file mode 100644
index 0000000..230ce1b
--- /dev/null
+++ b/src/shell_var.lua
@@ -0,0 +1,15 @@
+local svar = {}
+
+local svars = {}
+
+function svar.get(var)
+	return svars[var] or os.getenv(var)
+end
+
+function svar.set(var, val)
+	svars[var] = tostring(val)
+end
+
+function svar.get_all()
+	return svars
+end
\ No newline at end of file
diff --git a/src/staticinit.lua b/src/staticinit.lua
index 34cd26e..9cfc844 100644
--- a/src/staticinit.lua
+++ b/src/staticinit.lua
@@ -16,53 +16,8 @@
    limitations under the License.
 ]]
 
---#include "luacomp_vars.lua"
---#include "ast.lua"
---#include "generator.lua"
---#include "directive_provider.lua"
---#include "cfg/minifier_providers.lua"
-
 local argparse = (function()
---#include "argparse.lua"
+--#include "src/argparse.lua"
 end)()
 
-local parser = argparse(arg[0], "LuaComp v"..LUACOMP_VERSION.."\nA Lua preprocessor+postprocessor.")
-parser:argument("input", "Input file (- for STDIN)")
-parser:option("-O --output", "Output file. (- for STDOUT)", "-")
-parser:option("-m --minifier", "Sets the minifier", "none")
-parser:option("-x --executable", "Makes the script an executable (default: current lua version)"):args "?"
-local args = parser:parse()
-local file = args.input
-local f
-if (file ~= "-") then
-	f = io.open(file, "r")
-	if not f then
-		io.stderr:write("ERROR: File `"..file.."' does not exist!\n")
-		os.exit(1)
-	end
-else
-	f = io.stdin
-end
-local ast = mkast(f, file)
-local ocode = generate(ast)
-
-local minifier = providers[args.minifier]
-
-local rcode = minifier(ocode)
-
-local of
-if (args.output == "-") then
-	of = io.stdout
-else
-	of = io.open(args.output, "w")
-end
-local ver = _VERSION:lower():gsub(" ", "")
-if jit then
-	ver = "luajit"
-end
-if (args.executable) then
-	of:write("#!/usr/bin/env ", args.executable[1] or ver, "\n")
-end
-of:write(rcode)
-of:close()
-f:close()
+--#include "src/application.lua"