fix: don't reassign for-loop variable

fix: don't reassign for-loop variable

.gitignore

@@ -39,3 +39,4 @@ luac.out
 *.x86_64
 *.hex
 
+/.vscode/*

README.cn.md

@@ -14,7 +14,7 @@ z.lua 是一个快速路径切换工具，它会跟踪你在 shell 下访问过
 
 - 性能比 **z.sh** 快三倍，比 **fasd** / **autojump** 快十倍以上。
 - 支持 Posix Shell：bash, zsh, dash, sh, ash, busybox 等等。
-- 支持 Fish Shell，Power Shell 和 Windows cmd。
+- 支持 Fish Shell，Nushell, Power Shell 和 Windows cmd。
 - 使用增强匹配算法，更准确的带你去到你想去的地方。
 - 低占用，能够仅在当前路径改变时才更新数据库（将 `$_ZL_ADD_ONCE` 设成 1）。
 - 交互选择模式，如果有多个匹配结果的话，跳转前允许你进行选择。
@@ -84,6 +84,16 @@ z -b foo    # 跳转到父目录中名称以 foo 开头的那一级
 
   但是第二种方法需要记得在 z.lua 位置改变或者 lua 版本升级后需要重新生成。
 
+- Nushell:
+
+  在 `env.nu` 中加入如下代码：
+
+      lua /path/to/z.lua --init nushell | save -f ~/.cache/zlua.nu
+
+  然后在 `config.nu` 中加入如下代码：
+
+      source ~/.cache/zlua.nu
+
 - Power Shell:
 
   在你 Power Shell 的配置文件 `profile.ps1` 中放入下面语句：
@@ -112,7 +122,7 @@ z -b foo    # 跳转到父目录中名称以 foo 开头的那一级
 - 设置 `$_ZL_NO_PROMPT_COMMAND` 为 1 来跳过钩子函数初始化（方便自己处理）。
 - 设置 `$_ZL_EXCLUDE_DIRS` 逗号分隔的路径列表，列表内的路径不会被收集。
 - 设置 `$_ZL_ADD_ONCE` 为 '1' 时，仅在当前路径 `$PWD` 改变时才更新数据库。
-- 设置 `$_ZL_MAXAGE` 来确定一个数据老化的阀值 (默认为 5000)。
+- 设置 `$_ZL_MAXAGE` 来确定一个数据老化的阈值 (默认为 5000)。
 - 设置 `$_ZL_CD` 用来指定你想用的 cd 命令，比如有人用 cd_func 。
 - 设置 `$_ZL_ECHO` 为 1 可以在跳转后显示目标路径名称。
 - 设置 `$_ZL_MATCH_MODE` 为 1 可以打开 “增强匹配模式”。
@@ -201,7 +211,7 @@ Frecency 是一个由 'recent' 和 'frequency' 组成的合成词，这个术语
 
       cd foo
 
-  因此，在增强匹配算法中，你总可以象 cd 命令一样使用 z 命令，而不必当心目标路径是否被记录过。
+  因此，在增强匹配算法中，你总可以像 cd 命令一样使用 z 命令，而不必当心目标路径是否被记录过。
 
 - 忽略当前路径：
 
@@ -214,7 +224,7 @@ Frecency 是一个由 'recent' 和 'frequency' 组成的合成词，这个术语
 
   我当然可以每次使用`z env gems` 来精确指明，但是每当我输入 `z xxx` 我必然是想进行路径跳转的，而不是呆在原地，所以使用增强匹配模式，即便当前目录是最佳匹配，它也能懂得你想跳转的心思。
 
-再我最初实现 z.lua 时，只有一个和 z.sh 类似的默认匹配算法，在网友的建议下，我陆续学习了来自 fasd / autojump 中的优秀理念，并加以完善改进，成为如今集三家之长的 “增强匹配算法” ，给它取个昵称，叫做 “更懂你的匹配算法”。
+在我最初实现 z.lua 时，只有一个和 z.sh 类似的默认匹配算法，在网友的建议下，我陆续学习了来自 fasd / autojump 中的优秀理念，并加以完善改进，成为如今集三家之长的 “增强匹配算法” ，给它取个昵称，叫做 “更懂你的匹配算法”。
 
 
 ## Add once
@@ -444,15 +454,13 @@ sys     0m0.030s
 
 描述力强，可以更好的实现核心功能，同时速度更快，纯 shell 开发的话，太多语句是通过子进程 shell 的模式运行，所以性能很差，而 Python 开发的话启动速度又太慢，我在 Cygwin/msys 下用 z.sh 都觉得很卡，autojump/fasd 卡到不能用。
 
-最关键的一点，Lua 速度很快 200 KB 的可执行程序，启动速度是 python 的 3倍，perl 的 2 倍，很多命令行工具 go/rust 写成，动不动就 2MB / 3MB，他们都还没有完成加载，lua 脚本可能都运行完了。
+最关键的一点，Lua 速度很快 200 KB 的可执行程序，启动速度是 python 的 3 倍，perl 的 2 倍，很多命令行工具 go/rust 写成，动不动就 2MB / 3MB，他们都还没有完成加载，lua 脚本可能都运行完了。
 
 
 ## Credit
 
-Releated projects:
-
-- [rupa/z](https://github.com/rupa/z): origin z.sh implementation
-- [JannesMeyer/z.ps](https://github.com/JannesMeyer/z.ps): z for powershell
+我的推特：https://x.com/skywind3000
+个人博客: https://skywind.me/blog
 
 
 ## License

README.md

@@ -28,7 +28,7 @@ From people using z.lua:
 - **10x** times faster than **fasd** and **autojump**, **3x** times faster than **z.sh**.
 - Gain the ultimate speed with an optional [native module](https://github.com/skywind3000/czmod) written in C.
 - Available for **posix shells**: bash, zsh, dash, sh, ash, ksh, busybox and etc.
-- Available for Fish Shell, Power Shell and Windows cmd.
+- Available for Fish Shell, Nushell, Power Shell and Windows cmd.
 - [Enhanced matching algorithm](#enhanced-matching) takes you to where ever you want precisely.
 - Allow updating database only if `$PWD` changed with "$_ZL_ADD_ONCE" set to 1.
 - Interactive selection enables you to choose where to go before cd.
@@ -58,15 +58,6 @@ z -b foo bar # replace foo with bar in cwd and cd there
 
 ## Install
 
-- Fig (works with all shells)
-
-  [Fig](https://fig.io) adds apps, shortcuts, and autocomplete to your existing terminal.
-
-
-    Install `z.lua` in just one click.
-
-  <a href="https://fig.io/plugins/other/z.lua" target="_blank"><img src="https://fig.io/badges/install-with-fig.svg" /></a>
-
 - Bash:
 
   put something like this in your `.bashrc`:
@@ -87,6 +78,12 @@ z -b foo bar # replace foo with bar in cwd and cd there
 
       eval "$(lua /path/to/z.lua --init bash enhanced once fzf)"
   
+  NixOS users using home-manager can add this to their user profile:
+
+      programs.z-lua.enable = true;
+      programs.z-lua.enableBashIntegration = true;
+      programs.z-lua.options = [ "enhanced" "once" "fzf" ];  # modify as needed
+
   **NOTE**: For wsl-1 users, `lua-filesystem` must be installed:
 
       sudo apt-get install lua-filesystem
@@ -101,6 +98,12 @@ z -b foo bar # replace foo with bar in cwd and cd there
 
   Options like "enhanced", "once" and "fzf" can be used after `--init` too. It can also be initialized from "skywind3000/z.lua" with your zsh plugin managers (antigen / oh-my-zsh).
 
+  NixOS users using home-manager can add this to their user profile:
+
+      programs.z-lua.enable = true;
+      programs.z-lua.enableZshIntegration = true;
+      programs.z-lua.options = [ "enhanced" "once" "fzf" ];  # modify as needed
+
   **NOTE**: for wsl-1 users, `lua-filesystem` must be installed.
 
 - Posix Shells:
@@ -127,6 +130,24 @@ z -b foo bar # replace foo with bar in cwd and cd there
 
   into the same file.
 
+  NixOS users using home-manager can add this to their user profile:
+
+      programs.z-lua.enable = true;
+      programs.z-lua.enableFishIntegration = true;
+      programs.z-lua.options = [ "enhanced" "once" "fzf" ];  # modify as needed
+
+- Nushell
+
+  Put something like this in your `env.nu`:
+
+      lua /path/to/z.lua --init nushell | save -f ~/.cache/zlua.nu
+
+  Then put something like this in your `config.nu`:
+
+      source ~/.cache/zlua.nu
+
+  Note: Only Nushell v0.96+ is supported
+
 - Power Shell:
 
   > ⚠️ **WARNING**: users of [Starship Prompt](https://starship.rs/) should add the following command *after* `starship init`.
@@ -596,6 +617,7 @@ This project needs help for the tasks below:
 - Thanks to [@manhong2112](https://github.com/manhong2112) for Power Shell porting.
 - Thanks to [@BarbUk](https://github.com/BarbUk) for fzf completion in Bash.
 - Thanks to [@barlik](https://github.com/barlik) for many improvements.
+- Thanks to [@brglng](https://github.com/brglng) for nushell porting.
 
 And many others.
 

z.cmd

@@ -89,7 +89,9 @@ if /i "%1"=="--purge" (
 :check
 
 if /i "%1"=="" (
-	set "RunMode=-l"
+	if /i "%InterMode%"=="" (
+		set "RunMode=-l"
+	)
 )
 
 for /f "delims=" %%i in ('cd') do set "PWD=%%i"

z.lua

@@ -4,7 +4,7 @@
 -- z.lua - a cd command that learns, by skywind 2018-2022
 -- Licensed under MIT license.
 --
--- Version 1.8.18, Last Modified: 2024/03/20 22:17
+-- Version 1.8.25, Last Modified: 2026/03/09 21:15:46
 --
 -- * 10x faster than fasd and autojump, 3x faster than z.sh
 -- * available for posix shells: bash, zsh, sh, ash, dash, busybox
@@ -235,7 +235,8 @@ end
 function dump(o)
 	if type(o) == 'table' then
 		local s = '{ '
-		for k,v in pairs(o) do
+		for key, v in pairs(o) do
+			local k = key
 			if type(k) ~= 'number' then k = '"'..k..'"' end
 			s = s .. '['..k..'] = ' .. dump(v) .. ','
 		end
@@ -883,6 +884,7 @@ function os.interpreter()
 	local lua = os.argv[-1]
 	if lua == nil then
 		io.stderr:write("cannot get executable name, recompiled your lua\n")
+		return nil
 	end
 	if os.path.single(lua) then
 		local path = os.path.which(lua)
@@ -1611,21 +1613,23 @@ function z_cd(patterns)
 	if patterns == nil then
 		return nil
 	end
-	if #patterns == 0 then
-		return nil
-	end
-	local last = patterns[#patterns]
-	if last == '~' or last == '~/' then
-		return os.path.expand('~')
-	elseif windows and last == '~\\' then
-		return os.path.expand('~')
-	end
-	if os.path.isabs(last) and os.path.isdir(last) then
-		local size = #patterns
-		if size <= 1 then
-			return os.path.norm(last)
-		elseif last ~= '/' and last ~= '\\' then
-			return os.path.norm(last)
+	if Z_INTERACTIVE == 0 then
+		if #patterns == 0 then
+			return nil
+		end
+		local last = patterns[#patterns]
+		if last == '~' or last == '~/' then
+			return os.path.expand('~')
+		elseif windows and last == '~\\' then
+			return os.path.expand('~')
+		end
+		if os.path.isabs(last) and os.path.isdir(last) then
+			local size = #patterns
+			if size <= 1 then
+				return os.path.norm(last)
+			elseif last ~= '/' and last ~= '\\' then
+				return os.path.norm(last)
+			end
 		end
 	end
 	local M = z_match(patterns, Z_METHOD, Z_SUBDIR)
@@ -1667,15 +1671,15 @@ function z_cd(patterns)
 		local flag = os.environ('_ZL_FZF_FLAG', '')
 		flag = (flag == '' or flag == nil) and '+s -e' or flag
 		cmd = ((fzf == '') and 'fzf' or fzf)  .. ' ' .. cmd .. ' ' .. flag
+		local height = os.environ('_ZL_FZF_HEIGHT', '35%')
+		if height ~= nil and height ~= '' and height ~= '0' then
+			cmd = cmd .. ' --height ' .. height
+		end
 		if not windows then
 			tmpname = os.tmpname()
-			local height = os.environ('_ZL_FZF_HEIGHT', '35%')
-			if height ~= nil and height ~= '' and height ~= '0' then
-				cmd = cmd .. ' --height ' .. height
-			end
 			cmd = cmd .. ' < "' .. tmpname .. '"'
 		else
-			tmpname = os.tmpname():gsub('\\', ''):gsub('%.', '')
+			tmpname = os.tmpname():gsub('[\\:]', ''):gsub('%.', '')
 			tmpname = os.environ('TMP', '') .. '\\zlua_' .. tmpname .. '.txt'
 			cmd = 'type "' .. tmpname .. '" | ' .. cmd
 		end
@@ -1872,7 +1876,7 @@ function cd_breadcrumbs(pwd, interactive)
 		if not windows then
 			tmpname = os.tmpname()
 		else
-			tmpname = os.tmpname():gsub('\\', ''):gsub('%.', '')
+			tmpname = os.tmpname():gsub('[\\:]', ''):gsub('%.', '')
 			tmpname = os.environ('TMP', '') .. '\\zlua_' .. tmpname .. '.txt'
 		end
 		fp = io.open(tmpname, 'w')
@@ -1970,13 +1974,13 @@ function main(argv)
 			end
 		elseif options['-'] then
 			path = cd_minus(args, options)
-		elseif #args == 0 then
+		elseif #args == 0 and Z_INTERACTIVE == 0 then
 			path = nil
 		else
 			path = z_cd(args)
 			if path == nil and Z_MATCHMODE ~= 0 then
 				local last = args[#args]
-				if os.path.isdir(last) then
+				if last and os.path.isdir(last) then
 					path = os.path.abspath(last)
 					path = os.path.norm(path)
 				end
@@ -2000,12 +2004,14 @@ function main(argv)
 		for _, key in ipairs(args) do
 			opts[key] = 1
 		end
-		if windows then
+		if opts.nushell then
+			z_nushell_init(opts)
+		elseif windows then
 			z_windows_init(opts)
 		elseif opts.fish then
 			z_fish_init(opts)
 		elseif opts.powershell then
-		       z_windows_init(opts)
+			z_windows_init(opts)
 		else
 			z_shell_init(opts)
 		end
@@ -2017,9 +2023,14 @@ function main(argv)
 			z_print(M, true, false)
 		end
 	elseif options['--complete'] then
-		local line = args[1] and args[1] or ''
-		local head = line:sub(Z_CMD:len()+1):gsub('^%s+', '')
-		local M = z_match({head}, Z_METHOD, Z_SUBDIR)
+		local M = {}
+		if options['-m1'] then
+			M = z_match(args and args or {}, Z_METHOD, Z_SUBDIR)
+		else
+			local line = args[1] and args[1] or ''
+			local head = line:sub(Z_CMD:len()+1):gsub('^%s+', '')
+			M = z_match({head}, Z_METHOD, Z_SUBDIR)
+		end
 		for _, item in pairs(M) do
 			print(item.name)
 		end
@@ -2187,7 +2198,8 @@ _zlua() {
 			-s) local arg_strip="-s" ;;
 			-i) local arg_inter="-i" ;;
 			-I) local arg_inter="-I" ;;
-			-h|--help) local arg_mode="-h" ;;
+			-h) local arg_mode="-h" ;;
+			--help) local arg_mode="-h" ;;
 			--purge) local arg_mode="--purge" ;;
 			*) break ;;
 		esac
@@ -2797,6 +2809,129 @@ function z_windows_init(opts)
 end
 
 
+-----------------------------------------------------------------------
+-- nushell
+-----------------------------------------------------------------------
+local script_zlua_nushell = [[
+export def _zlua --env --wrapped [...args: string] {
+    if ($args | length) != 0 and $args.0 == "--add" {
+        with-env { _ZL_RANDOM: (random int) } { ^$env.ZLUA_LUAEXE $env.ZLUA_SCRIPT --add ...($args | skip 1) }
+    } else if ($args | length) != 0 and $args.0 == "--complete" {
+        ^$env.ZLUA_LUAEXE $env.ZLUA_SCRIPT --complete ...($args | skip 1)
+    } else {
+        mut arg_mode = ''
+        mut arg_type = ''
+        mut arg_subdir = ''
+        mut arg_inter = ''
+        mut arg_strip = ''
+        mut count = 0
+        for arg in $args {
+            match $arg {
+                '-l' => { $arg_mode = '-l' },
+                '-e' => { $arg_mode = '-e' },
+                '-x' => { $arg_mode = '-x' },
+                '-t' => { $arg_type = '-t' },
+                '-r' => { $arg_type = '-r' },
+                '-c' => { $arg_subdir = '-c' },
+                '-s' => { $arg_strip = '-s' },
+                '-i' => { $arg_inter = '-i' },
+                '-I' => { $arg_inter = '-I' },
+                '-h' => { $arg_mode = '-h' },
+                '--help' => { $arg_mode = '-h' },
+                '--purge' => { $arg_mode = '--purge' },
+                _ => break
+            }
+            $count += 1
+        }
+        let args = $args | skip $count
+        if $arg_mode == '-h' or $arg_mode == '--purge' {
+            ^$env.ZLUA_LUAEXE $env.ZLUA_SCRIPT $arg_mode
+        } else if $arg_mode == '-l' or ($args | length) == 0 {
+            ^$env.ZLUA_LUAEXE $env.ZLUA_SCRIPT -l $arg_subdir $arg_type $arg_strip ...$args
+        } else if $arg_mode != '' {
+            ^$env.ZLUA_LUAEXE $env.ZLUA_SCRIPT $arg_mode $arg_subdir $arg_type $arg_inter ...$args
+        } else {
+            let zdest = (^$env.ZLUA_LUAEXE $env.ZLUA_SCRIPT --cd $arg_type $arg_subdir $arg_inter ...$args)
+            if $zdest != '' and ($zdest | path exists) {
+                cd $zdest
+                if _ZL_ECHO in $env and $env._ZL_ECHO != '' {
+                    pwd
+                }
+            }
+        }
+    }
+}
+]]
+
+local script_init_nushell = [[
+$env.config = ($env | default {} config).config
+$env.config = ($env.config | default {} hooks)
+$env.config = ($env.config | update hooks ($env.config.hooks | default {} env_change))
+$env.config = ($env.config | update hooks.env_change ($env.config.hooks.env_change | default [] PWD))
+$env.config = ($env.config | update hooks.env_change.PWD ($env.config.hooks.env_change.PWD | append {|_, dir| _zlua --add $dir }))
+]]
+
+local script_complete_nushell = [[
+let zlua_completer = {|spans| $spans | skip 1 | _zlua --complete -m1 ...$in | lines | where {|x| $x != $env.PWD}}
+
+$env.config = ($env.config | default {} completions)
+$env.config = ($env.config | update completions ($env.config.completions | default {} external))
+$env.config = ($env.config | update completions.external ($env.config.completions.external | default true enable))
+if completer in $env.config.completions.external {
+    let orig_completer = $env.config.completions.external.completer
+    $env.config = ($env.config | update completions.external.completer {
+        {|spans|
+            match $spans.0 {
+                z => $zlua_completer,
+                _zlua => $zlua_completer,
+                _ => $orig_completer
+            } | do $in $spans
+        }
+    })
+} else {
+    $env.config = ($env.config | update completions.external.completer {
+        {|spans|
+            match $spans.0 {
+                z => $zlua_completer,
+                _zlua => $zlua_completer,
+            } | do $in $spans
+        }
+    })
+}
+
+export alias z = _zlua
+
+]]
+
+-----------------------------------------------------------------------
+-- initialize nushell
+-----------------------------------------------------------------------
+function z_nushell_init(opts)
+	print('$env.ZLUA_LUAEXE = \'' .. os.interpreter() .. '\'')
+	print('$env.ZLUA_SCRIPT = \'' .. os.scriptname() .. '\'')
+	local prompt_hook = (not os.environ("_ZL_NO_PROMPT_COMMAND", false))
+	if opts.clean ~= nil then
+		prompt_hook = false
+	end
+	print(script_zlua_nushell)
+	if prompt_hook then
+		print(script_init_nushell)
+	end
+	print(script_complete_nushell)
+	if opts.enhanced ~= nil then
+		print('$env._ZL_MATCH_MODE = 1')
+	end
+	if opts.once ~= nil then
+		print('$env._ZL_ADD_ONCE = 1')
+	end
+	if opts.echo ~= nil then
+		print('$env._ZL_ECHO = 1')
+	end
+	if opts.nc ~= nil then
+		print('$env._ZL_NO_CHECK = 1')
+	end
+end
+
 -----------------------------------------------------------------------
 -- help
 -----------------------------------------------------------------------

z.lua.plugin.zsh

@@ -22,9 +22,9 @@ fi
 export _ZL_FZF_FLAG=${_ZL_FZF_FLAG:-"-e"}
 
 if [[ -z "$_ZL_ZSH_NO_FZF" ]]; then
-	eval "$($ZLUA_EXEC $ZLUA_SCRIPT --init zsh once enhanced)"
-else
 	eval "$($ZLUA_EXEC $ZLUA_SCRIPT --init zsh once enhanced fzf)"
+else
+	eval "$($ZLUA_EXEC $ZLUA_SCRIPT --init zsh once enhanced)"
 fi
 
 if [[ -z "$_ZL_NO_ALIASES" ]]; then