使用真实标签创建外部文件（如 Makefile）

Question

我正在尝试使用 latex 和 filecontents 或 fancyvrb 包生成外部 Makefile（和其他文件）。由于\t输入文件中的（制表符）字符在输出文件中转换为空格（请参阅将制表符输出到文件中，我决定使用一点 Lua 来做一个小技巧（我知道你可以用sed或perl）。

由于我不太熟悉，Lua但写了以下代码（论坛将真实的制表符转换为空格example.tex）：

% example.tex
% arara: lualatex : {draft: yes,action: nonstopmode}
% arara: pdflatex
% arara: clean: { files:[example.aux,example.log,Makefile.tmp,Makefile.tab] }
\documentclass{article}
\usepackage{ifluatex}
\usepackage{filecontents}
\usepackage{xcolor}
\usepackage{fvextra}
\begin{document} 

The original Makefile whit real tabs (show whit arrow)
%% forum convert tabs into space...replace whit real tab (show in red)
\begin{Verbatim}[obeytabs, showtabs, tab=\rightarrowfill, tabcolor=red,showspaces, spacecolor=blue]
clean: clean-test 
    rm -f *.bbl *.bcf *.bib *.blg *.xdy # biblatex

distclean: clean
    rm -f *.cls *.sty *.clo *.tar.gz *.tds.zip README

%.cls: %.dtx
    tex $<

%.pdf: %.dtx
    pdflatex -interaction=nonstopmode -halt-on-error $<
\end{Verbatim}

Write in external file (Makefile.tab)

\begin{VerbatimOut}{Makefile.tab}
clean: clean-test 
    rm -f *.bbl *.bcf *.bib *.blg *.xdy # biblatex

distclean: clean
    rm -f *.cls *.sty *.clo *.tar.gz *.tds.zip README

%.cls: %.dtx
    tex $<

%.pdf: %.dtx
    pdflatex -interaction=nonstopmode -halt-on-error $<
\end{VerbatimOut}

Read Makefile.tmp file, (tabs are convert in space)
\VerbatimInput[obeytabs, showtabs, tab=\rightarrowfill, tabcolor=red,showspaces, spacecolor=blue]{Makefile.tab}

%%
\ifluatex
Create lua funtion only in lualatex
\begin{filecontents*}{maketab.lua}
-- maketab
local open = io.open

local function read_file(filename)
    local file = open(filename, "r") -- r read mode
    if not file then return nil end
    local slurp = file:read "*all" -- reads the whole file (slurp)
    file:close()
    return slurp
end

local content = read_file("Makefile.tmp");
content=content:gsub("TAB ", "\t")

-- Create new Makefile.mk (pdfTeX need ext)
outwhitmk = io.open("Makefile.mk", "w")
    outwhitmk:write(content)
outwhitmk:close()

-- Create new Makefile (no ext)
outreal = io.open("Makefile", "w")
    outreal:write(content)
outreal:close()
\end{filecontents*}
\else
\fi

Write a external Makefile.tmp changue tab for TAB \newline

\begin{filecontents*}{Makefile.tmp}
clean: clean-test 
TAB rm -f *.bbl *.bcf *.bib *.blg *.xdy # biblatex

distclean: clean
TAB rm -f *.cls *.sty *.clo *.tar.gz *.tds.zip README

%.cls: %.dtx
TAB tex $<

%.pdf: %.dtx
TAB pdflatex -interaction=nonstopmode -halt-on-error $<
\end{filecontents*}

Show external Makefile.tmp \newline

\VerbatimInput[obeytabs, showtabs, tab=\rightarrowfill, tabcolor=red,showspaces, spacecolor=blue]{Makefile.tmp}

Now using directlua maketab.lua to reverse TAB to real tab character\newline

\ifluatex
\directlua{dofile("maketab.lua")}
Show correct MakeFile (LuaTeX don't need ext)
\VerbatimInput[obeytabs, showtabs, tab=\rightarrowfill, tabcolor=red,showspaces, spacecolor=blue]{{Makefile}}
\else
Show correct MakeFile (pdfTeX)
\VerbatimInput[obeytabs, showtabs, tab=\rightarrowfill, tabcolor=red,showspaces, spacecolor=blue]{Makefile.mk}
\fi
\end{document}

我对此有两点疑问：

1. 从 LaTeX 创建 Makefile 文件是否正确，或者是否有任何包可以执行此操作（我不想重新发明轮子）。

2. 参照 Lua 代码（maketab.lua），可以直接按如下方式重写代码\directlua{dofile("maketab.lua",filein.ext,fileout[.ext]?)}？，传递带扩展名的输入文件的名称和带可选扩展名的输出文件的名称。

提前表示感谢。

Answer 1

我自己回答，您可以使用该scontents包，而不需要编写lua脚本来执行此操作：

\documentclass{article}
\usepackage{scontents}
\usepackage{xcolor}
\usepackage{fvextra}
\begin{document}
The original Makefile whit real tabs (show red arrow)
\begin{Verbatim}[obeytabs, showtabs, tab=\rightarrowfill, tabcolor=red]
clean: clean-test
	rm -f *.bbl *.bcf *.bib *.blg *.xdy
distclean: clean
	rm -f *.cls *.sty *.clo *.tar.gz *.tds.zip README
\end{Verbatim}
Write in external file (Makefile.tab)
\begin{scontents}[write-out=Makefile.tab]
clean: clean-test
	rm -f *.bbl *.bcf *.bib *.blg *.xdy
distclean: clean
	rm -f *.cls *.sty *.clo *.tar.gz *.tds.zip README
\end{scontents}
Read Makefile.tab file (show red arrow)
\VerbatimInput[obeytabs, showtabs, tab=\rightarrowfill, tabcolor=red]{Makefile.tab}
\end{document}