# Missing space in triptest

Looking at trip.log from CTAN we have on line 6488 `\csname\endcsname {->{` but when I run triptest on either miktex or texlive I get the output `\csname\endcsname{->{` without the space. What is the reason for this discrepancy?

• Welcome to TeX.SE! Which version of MikTeX or TeX Live are you using? (This looks a lot like the most recent bug in TeX, the one that was fixed in 2014.) – ShreevatsaR Feb 12 '18 at 23:40
• That sure looks like it, I'm running miktex 2.9.3759 (3.1415926). I didn't think my installation was that old, time to upgrade I guess. – nadder Feb 13 '18 at 0:25
• Ah ok great, posted as an answer because comments can disappear. Also curious why you're running the triptest (that was originally intended for alternative implementations of TeX to say they were the “same” program), but I imagine you have your reasons. :-) – ShreevatsaR Feb 13 '18 at 0:37
• Well, for fun I decided to rewrite tex in C++ to see how long it would take. It took about 30 hours to write it and twice that to fix all the typos and bugs I made. Today it finally passed the triptest except for that missing space. So I tested it on miktex and texlive as well with the same error. Nice to know the reason for it. Thanks alot for your help. – nadder Feb 13 '18 at 1:00
• Ok, you talked me into it, cleaned up a bit and uploaded to github.com/nadder/rstex. – nadder Feb 15 '18 at 13:40