[latex3-commits] [git/LaTeX3-latex3-latex3] peek-refactor: Document that \noexpand doesn't 'work' for \peek_remove_filler:n (33925fa8b)

[Joseph Wright]

Repository : https://github.com/latex3/latex3
On branch  : peek-refactor
Link       : https://github.com/latex3/latex3/commit/33925fa8bc5d44572aa46bf838c478eaadff3538

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commit 33925fa8bc5d44572aa46bf838c478eaadff3538
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Tue Jan 11 13:42:52 2022 +0000

    Document that \noexpand doesn't 'work' for \peek_remove_filler:n
    
    This happens as we have a two-step process: first
    using \romannumeral and then using \futurelet. If we
    want to allow \noexpand we have to only use \futurelet.


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33925fa8bc5d44572aa46bf838c478eaadff3538
 l3kernel/l3token.dtx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/l3kernel/l3token.dtx b/l3kernel/l3token.dtx
index 76541760b..644a01d8c 100644
--- a/l3kernel/l3token.dtx
+++ b/l3kernel/l3token.dtx
@@ -932,6 +932,9 @@
 %     the search for a left brace after for example \tn{everypar}, except that
 %     any non-expandable token cleanly ends the \meta{filler} (i.e.~it does not
 %     lead to a \TeX{} error).
+%
+%     In contrast to \TeX{}'s filler removal, a construct
+%     \verb|\exp_not:N \foo| will be treated in the same way as \verb|\foo|.
 %   \end{texnote}
 % \end{function}
 %