On Sun, 19 Jan 2025 at 15:24, Lukas Heindl via luatex <luatex@tug.org> wrote:
> Hi, > > I'm currently working on an extraction script for the memoize package > written in (tex)lua (see [1]). > As I also worked on cluttex (a build system similar to latexmk, see[2], > now working on the fork cluttealtex), I discovered there are some > issues/functions that frequently come up, particularly regarding > files/paths. Generally this is a common scheme with lua where the > standard-library is quite small. Luatex already includes some libraries > used for common tasks, like lfs/luafilesystem or md5. Looking for more > information on already in luatex included lua libraries, I came across [3] > which lists a library with functions like joinpath, replacesuffix or > basename. Running the script [4] that generated this list, I can't find > such functions in my environment. > > Does a pathlib library (handling all the quirks with different > path-seperators etc) already exist in luatex (and I'm just not able to find > a reference on it)? > And if not are there any plans to write and include such a library? > > I see also some lua projects in the luatex context, like l3build, write > their own "libraries" [5]. But path operations are needed quite frequently > and it doesn't make sense that each luatex package needs to write such a > library from scratch. > > TL;DR > - does a pathutil library already exist for luatex? > - is it planned to write and include one? > - I'd vote for such a library (could also help writing one / including one > in luatex) > > Best Wishes > Lukas > > > [1]: https://github.com/atticus-sullivan/memoize/tree/feat-texlua-script > [2]: https://ctan.org/pkg/cluttex > [3]: https://github.com/Josef-Friedrich/LuaTeX_Lua-API > [4]: > https://github.com/Josef-Friedrich/LuaTeX_Lua-API?tab=readme-ov-file#zlib > (a bit below that anchor) > [5]: > https://github.com/latex3/l3build/blob/main/l3build-file-functions.lua > > Perhaps the author has included some modules from here (see the svn repo) trunk/Master/texmf-dist/tex/luatex eg those under lualibs/* At the moment there is no plan to include any lua library in the source code, we rely on external lua modules. -- luigi
