I'd like to take a look at the sources for some of the LaTeX3 development to model after, but I'm having trouble finding them. Where might I find the sources for texdoc interface3, texdoc xparse, and the like?


As with any other material in TeX Live, the sources are available inside the source tree. You can find them by using kpsewhich with the appropriate .dtx file name, thus for example kpsewhich xparse.dtx will give


In the case of interface3/source3, life is a bit more complex as this is constructed from all of the .dtx files for l3kernel. There are a few .tex files which do this, and these are currently uploaded in the doc subtree, so inside


As David mentions in a comment, you can access the SVN repository via the team website, or the (perhaps nicer) GitHub mirror if you are willing to risk being a few commits behind the burning edge (synch is currently once-per-hour with the SVN on a script running on the latter server).

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    Dang, I was so close too! I had tried kpsewhich, but I wasn't adding the extension (doing just kpsewhich xparse) which was giving me nothing. :-) – Sean Allred Jul 10 '13 at 11:32
  • Looks like GitHub one is not a mirror anymore - see actual commits in git missing in the subversion repository. – Anton Kochkov Feb 2 '16 at 14:17
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    @AntonKochkov There better not be! We've got a two-way mirror and to my knowledge it works fine. There are a couple of commits that ended up not showing in trunk (the Git side did a branch and I missed it before syncing), but they are all there at the top level. – Joseph Wright Feb 2 '16 at 14:19
  • Just to be clear, to see all of the SVN go to latex-project.org/svnroot/experimental (missing off the trunk), though good luck working back through the interface there. I'd suggest instead using the Git version, and getting the SVN revision numbers using the data added by SubGit (basically add fetch = fetch = +refs/svn/map:refs/notes/commits to your .git/config in the [remote "origin"] part) – Joseph Wright Feb 2 '16 at 14:24

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