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You know those boxes at the bottom of the right-hand pages in Volume B? Well, I managed to weave mf.web by stealing the weave binary from a distribution where it actually works (it doesn't in MiKTeX), and it TeXed fine, but I'm at a bit of a loss as to why those boxes haven't appeared. Is there any way I can get them, or are does Knuth keep the code for that locked up?

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the "mini-index" listings in volume b were generated separately and added in post-processing. there is a chapter in knuth's book "digital typography" entitled "mini-indexes for literate programs" (it's chapter 11, pp.225-245), as well as several other entries in the index.

a program TWILL was used to create the mini-indexes in both volumes b and d. the name was "suggested by the fact that it was a two-pass variant of the standard program called WEAVE." there were several references to TWILL in the course of the panel discussion at tug 2010. (see http://tug.org/TUGboat/tb31-2/tb98panel.pdf or the video of the panel at http://river-valley.zeeba.tv/tug-2010-panel/) apparently TWILL is somewhere on knuth's web site (http://www-cs-faculty.stanford.edu/~knuth/), . "It's not that easy to use, so I don't advertise it much. It requires running in several passes."

so it is out there to be explored, if not that easy to use.

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Hmm, looks like someone asked the same question not too long ago on TeXhax: comments.gmane.org/gmane.comp.tex.texhax/13687; unfortunately I'm not seeing any sign of TWILL itself -- I hope I don't have to write a letter to Knuth and wait until he reads it in 2014 before I can learn the URL! –  SamB Feb 5 '11 at 0:13
    
I've found a SO question about CTWILL (answered it, too!), and a tape listing that contains an entry for TWILL.WEB and one for TWILL.CH... –  SamB Feb 5 '11 at 1:21
    
... and score! here I can actually get to the files: saildart.org/prog/SYS/TEX_SYS/.browser.html –  SamB Feb 5 '11 at 1:24

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