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lua 5.1 for Windows で shebang もどき

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上記の方法は、ラベルがある Lua 5.2 以降でしか使えなかった。

GopherLua など、最も普及した「lua 5.1」で shebang(バッチファイルにスクリプトを埋め込んで、インタプリタ名の入力を省く)を書くには次のように、ワンライナー中にスクリプトの3行目以降をロードするコードを書く方法がある。

@lua5.1.exe -e "_,_,b=io.input([[%~f0]]):read('*l','*l','*a');assert(loadstring('\n'..b,[[%~f0]]))()"
@exit /b %ERRORLEVEL%

print('ahaha')

一応、エラー時の行番号もずれない(評価する前に頭に \n\n を追加して、読み飛ばた文の行位置の調整をしている)

zetamatta
「趣味で Go 言語を書いているものだ」
https://github.com/zetamatta
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