diff options
Diffstat (limited to 'macros/latex/contrib/siunitx/siunitx-unit.dtx')
-rw-r--r-- | macros/latex/contrib/siunitx/siunitx-unit.dtx | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/macros/latex/contrib/siunitx/siunitx-unit.dtx b/macros/latex/contrib/siunitx/siunitx-unit.dtx index 7147db4275..6ea4ef12b9 100644 --- a/macros/latex/contrib/siunitx/siunitx-unit.dtx +++ b/macros/latex/contrib/siunitx/siunitx-unit.dtx @@ -763,13 +763,16 @@ % when parsing there is a need to check if the current unit is built up % from others (symbolic) or is defined in terms of some literals. To do this, % the approach used is to set all of the symbolic unit commands expandable -% and to do nothing, with the few special cases handled manually. +% and to do nothing, with the few special cases handled manually. We expand +% the input here twice: this handles the case where there is a mapping or +% similar in |#1| which returns its result in \cs{exp_not:n}. % \begin{macrocode} \prg_new_protected_conditional:Npnn \@@_if_symbolic:n #1 { TF } { \group_begin: \bool_set_true:N \l_@@_test_bool \protected@edef \l_@@_tmp_tl {#1} + \protected@edef \l_@@_tmp_tl { \l_@@_tmp_tl } \exp_args:NNV \group_end: \tl_if_blank:nTF \l_@@_tmp_tl { \prg_return_true: } |