General ⇒ Specifying arguments with xparse

[erwann]

Upgrading to texlive 2017 solved the problem.

Screen Shot 2018-02-28 at 7.40.12 PM.png (21.05 KiB) Viewed 3262 times

[erwann]

I would have thought the 'chars' in e{chars} or E{chars} would have been specified as '_^' rather than '^_' given the example that follows.

I get it now... xparse.pdf: "returned data is a token list comprising one braced entry per key, ordered as for the key list in the argument specification. "

[erwann]

It's odd the last piece of code I pasted (E arguments) no longer works on Linux.

Code: Select all

! Undefined control sequence.
l.19     \foo
             _{one}^{two}

This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017) (preloaded format=pdflatex)
restricted \write18 enabled.
entering extended mode
(./argE.tex
LaTeX2e <2017-04-15>