From eef9f5a4a0f1bc3b14f2774b38a33cdabb65e490 Mon Sep 17 00:00:00 2001
From: skywind3000 <skywind3000@163.com>
Date: Sun, 10 Feb 2019 15:08:23 +0800
Subject: [PATCH] improve compatibility for ksh

---
 README.md |  8 ++++----
 z.lua     | 20 ++++++++++----------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/README.md b/README.md
index 1eefe6b..7d68c23 100644
--- a/README.md
+++ b/README.md
@@ -81,11 +81,11 @@ z -b foo    # cd to the parent directory starting with foo
 
       eval "$(lua /path/to/z.lua --init posix)"
 
-  For new posix shells like dash/ash, you can use:
+  For very old shells like ksh (Korn Shell), some keywords like `local` and `builtin` are unsupported, you can use:
 
-      eval "$(lua /path/to/z.lua --init posix new)"
+      eval "$(lua /path/to/z.lua --init posix legacy)"
 
-  To take advantage of keywords `local` and `builtin`.
+  To generate old posix compatible script.
 
 - Fish Shell:
 
@@ -397,7 +397,7 @@ awk -F '\t' '{print $2 "|" $1 "|" 0}' $FN >> ~/.zlua
 
 ## History
 
-- 1.4.4 (2019-02-10): supports legacy posix shells like ksh.
+- 1.4.4 (2019-02-10): supports legacy posix shells like ksh, init with `z.lua --init posix legacy`.
 - 1.4.3 (2019-02-08): fixed minor issues.
 - 1.4.2 (2019-02-06): you can disabled path validation by `$_ZL_NO_CHECK`, and use `z --purge` to clear bad paths manually.
 - 1.4.1 (2019-02-06): fzf tab-completion in bash (@[BarbUk](https://github.com/BarbUk)), fixed hang in fish shell (close [#29](https://github.com/skywind3000/z.lua/issues/29)).
diff --git a/z.lua b/z.lua
index e273802..35a8298 100755
--- a/z.lua
+++ b/z.lua
@@ -4,7 +4,7 @@
 -- z.lua - a cd command that learns, by skywind 2018, 2019
 -- Licensed under MIT license.
 --
--- Version 1.4.4, Last Modified: 2019/02/10 12:56
+-- Version 1.4.4, Last Modified: 2019/02/10 15:07
 --
 -- * 10x faster than fasd and autojump, 3x faster than z.sh
 -- * available for posix shells: bash, zsh, sh, ash, dash, busybox
@@ -1916,16 +1916,11 @@ function z_shell_init(opts)
 	print('ZLUA_SCRIPT="' .. os.scriptname() .. '"')
 	print('ZLUA_LUAEXE="' .. os.interpreter() .. '"')
 	print('')
-	if not opts.posix then
+	if not opts.legacy then
 		print(script_zlua)
 	else
-		if opts.new or opts.modern then
-			print(script_zlua)
-		else
-			local script = script_zlua:gsub('local ', '')
-			script = script:gsub('builtin ', '')
-			print(script)
-		end
+		local script = script_zlua:gsub('local ', ''):gsub('builtin ', '')
+		print(script)
 	end
 
 	local prompt_hook = (os.getenv("_ZL_NO_PROMPT_COMMAND") == nil)
@@ -1957,7 +1952,12 @@ function z_shell_init(opts)
 		print(script_complete_zsh)
 	elseif opts.posix ~= nil then
 		if prompt_hook then
-			print(once and script_init_posix_once or script_init_posix)
+			local script = script_init_posix
+			if once then script = script_init_posix_once end
+			if opts.legacy then
+				script = script:gsub('%&%)', ')')
+			end
+			print(script)
 		end
 		print('_ZL_NO_BUILTIN_CD=1')
 	else