update doc

Do not append semicolon to PROMPT_COMMAND

README.md

@@ -458,7 +458,9 @@ As you see, z.lua is the fastest one and requires less resource.
 
 ## History
 
-- 1.7.0 (2019-03-09): Support ranger, fix ReplaceFile issue in luajit (windows).
+- 1.7.2 (2019-08-01): Improve bash/zsh shell compatibility by [@barlik](https://github.com/barlik).
+- 1.7.1 (2019-06-07): Fixed: `$_ZL_DATA` failure on Linux sometimes.
+- 1.7.0 (2019-03-09): Support [ranger](https://github.com/skywind3000/z.lua/wiki/FAQ#how-to-integrate-zlua-to-ranger-), fix ReplaceFile issue in luajit (windows).
 - 1.6.0 (2019-03-04): optimize with ffi module (luajit builtin module).
 - 1.5.11 (2019-03-02): fixed: os.path.isdir doesn't work for symbol link folders.
 - 1.5.10 (2019-03-01): Prevent writing file racing.

z.lua

@@ -4,7 +4,7 @@
 -- z.lua - a cd command that learns, by skywind 2018, 2019
 -- Licensed under MIT license.
 --
--- Version 1.7.0, Last Modified: 2019/03/09 16:51
+-- Version 1.7.2, Last Modified: 2019/08/01 19:45
 --
 -- * 10x faster than fasd and autojump, 3x faster than z.sh
 -- * available for posix shells: bash, zsh, sh, ash, dash, busybox
@@ -1869,11 +1869,8 @@ function z_init()
 			DATA_FILE = _zl_data
 		else
 			-- avoid windows environments affect cygwin & msys
-			if _zl_data:sub(2, 2) ~= ':' then
+			if not string.match(_zl_data, '^%a:[/\\]') then
-				local t = _zl_data:sub(3, 3)
+				DATA_FILE = _zl_data
-				if t ~= '/' and t ~= "\\" then
-					DATA_FILE = _zl_data
-				end
 			end
 		end
 	end
@@ -2013,14 +2010,14 @@ alias ${_ZL_CMD:-z}='_zlua'
 local script_init_bash = [[
 case "$PROMPT_COMMAND" in
 	*_zlua?--add*) ;;
-	*) PROMPT_COMMAND="(_zlua --add \"\$(command pwd 2>/dev/null)\" &);$PROMPT_COMMAND" ;;
+	*) PROMPT_COMMAND="(_zlua --add \"\$(command pwd 2>/dev/null)\" &)${PROMPT_COMMAND:+;$PROMPT_COMMAND}" ;;
 esac
 ]]
 
 local script_init_bash_fast = [[
 case "$PROMPT_COMMAND" in
 	*_zlua?--add*) ;;
-	*) PROMPT_COMMAND="(_zlua --add \"\$PWD\" &);$PROMPT_COMMAND" ;;
+	*) PROMPT_COMMAND="(_zlua --add \"\$PWD\" &)${PROMPT_COMMAND:+;$PROMPT_COMMAND}" ;;
 esac
 ]]
 
@@ -2032,7 +2029,7 @@ _zlua_precmd() {
 }
 case "$PROMPT_COMMAND" in
 	*_zlua_precmd*) ;;
-	*) PROMPT_COMMAND="_zlua_precmd;$PROMPT_COMMAND" ;;
+	*) PROMPT_COMMAND="_zlua_precmd${PROMPT_COMMAND:+;$PROMPT_COMMAND}" ;;
 esac
 ]]
 
@@ -2059,7 +2056,7 @@ local script_init_zsh = [[
 _zlua_precmd() {
 	(_zlua --add "${PWD:a}" &)
 }
-typeset -gaU precmd_functions
+typeset -ga precmd_functions
 [ -n "${precmd_functions[(r)_zlua_precmd]}" ] || {
 	precmd_functions[$(($#precmd_functions+1))]=_zlua_precmd
 }
@@ -2069,7 +2066,7 @@ local script_init_zsh_once = [[
 _zlua_precmd() {
 	(_zlua --add "${PWD:a}" &)
 }
-typeset -gaU chpwd_functions
+typeset -ga chpwd_functions
 [ -n "${chpwd_functions[(r)_zlua_precmd]}" ] || {
 	chpwd_functions[$(($#chpwd_functions+1))]=_zlua_precmd
 }