From 488699dbaca6ce3920fabfdb7ec64d4d3ba0bc59 Mon Sep 17 00:00:00 2001 From: Karl Berry Date: Fri, 24 Apr 2015 23:19:49 +0000 Subject: mhchem (24apr15) git-svn-id: svn://tug.org/texlive/trunk@37037 c570f23f-e606-0410-a88d-b1316a301751 --- Master/texmf-dist/tex/latex/mhchem/mhchem.sty | 1067 +++++++++++++++---------- 1 file changed, 635 insertions(+), 432 deletions(-) (limited to 'Master/texmf-dist/tex/latex/mhchem') diff --git a/Master/texmf-dist/tex/latex/mhchem/mhchem.sty b/Master/texmf-dist/tex/latex/mhchem/mhchem.sty index f2940915438..5d27ecce7ce 100644 --- a/Master/texmf-dist/tex/latex/mhchem/mhchem.sty +++ b/Master/texmf-dist/tex/latex/mhchem/mhchem.sty @@ -27,12 +27,13 @@ % This work consists of all files listed in manifest.txt. % % -\ProvidesPackage{mhchem}[2015/04/07 v4.00 for typesetting chemical formulae] +\ProvidesPackage{mhchem}[2015/04/23 v4.01 for typesetting chemical formulae] \RequirePackage{expl3} \RequirePackage{l3keys2e} \RequirePackage{l3regex} \RequirePackage{calc}[1998/07/07] \RequirePackage{amsmath} +\RequirePackage{chemgreek}[2015/04/09] \RequirePackage{graphics} \RequirePackage{ifthen} @@ -89,6 +90,7 @@ { \tl_put_right:Nn #1 { #2 { #5 } } } #4 } + \cs_new_protected:Npn \__mhchem_loopHelper_appendMathA:NNw #1#2#3$ { \tl_put_right:Nn #1 { $ #3 $ } @@ -99,36 +101,28 @@ \tl_put_right:Nn #1 { $ { #3 } $ } #2 } -\cs_new_protected:Npn \__mhchem_loopHelper_appendMathB:nn #1#2 +\cs_new_protected:Npn \__mhchem_loopHelper_appendWithinMathTokens:nn #1#2 { \peek_catcode:NTF \c_group_begin_token - { - \__mhchem_loopHelper_appendMathB_aux_group:ccw - {#1} - {#2} - } - { - \__mhchem_loopHelper_appendMathB_aux:ccw - {#1} - {#2} - } + { \__mhchem_loopHelper_appendWithinMathTokens_aux_group:ccw {#1} {#2} } + { \__mhchem_loopHelper_appendWithinMathTokens_aux:ccw {#1} {#2} } } -\cs_new_protected:Npn \__mhchem_loopHelper_appendMathB_aux:NNw #1#2#3$ +\cs_new_protected:Npn \__mhchem_loopHelper_appendWithinMathTokens_aux:NNw #1#2#3$ { - \tl_put_right:Nn #1 { \__mhchem_cg_withinMathTokens:n { #3 } } + \tl_put_right:Nn #1 { \__mhchem_cg_withinMathTokens:n {#3} } #2 } -\cs_generate_variant:Nn \__mhchem_loopHelper_appendMathB_aux:NNw {ccw} -\cs_new_protected:Npn \__mhchem_loopHelper_appendMathB_aux_group:NNw #1#2#3$ +\cs_generate_variant:Nn \__mhchem_loopHelper_appendWithinMathTokens_aux:NNw {ccw} +\cs_new_protected:Npn \__mhchem_loopHelper_appendWithinMathTokens_aux_group:NNw #1#2#3$ { - \tl_put_right:Nn #1 { \__mhchem_cg_withinMathTokens:n { { #3 } } } + \tl_put_right:Nn #1 { \__mhchem_cg_withinMathTokens:n { {#3} } } #2 } -\cs_generate_variant:Nn \__mhchem_loopHelper_appendMathB_aux_group:NNw {ccw} +\cs_generate_variant:Nn \__mhchem_loopHelper_appendWithinMathTokens_aux_group:NNw {ccw} + \cs_new_protected:Npn \__mhchem_loopHelper_ignoreNextToken:Nn #1#2 - { - #1 - } + { #1 } + \ExplSyntaxOff %%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -188,10 +182,11 @@ \cs_generate_variant:Nn \regex_replace_all:nnN { VnN } \bool_new:N \l__mhchem_cesplit_odd_bool +\tl_new:N \l__mhchem_cesplit_tmpa_tl \newcommand\cesplit[2] { \bool_set_true:N \l__mhchem_cesplit_odd_bool - \tl_set:Nn \l_tmpa_tl { \__mhchem_ce:n {#2} } + \tl_set:Nn \l__mhchem_cesplit_tmpa_tl { \__mhchem_ce:n {#2} } \tl_map_inline:nn {#1} { @@ -205,11 +200,11 @@ \regex_replace_all:VnN \__mhchem_cesplit_key_tl { \cE] ##1 \c{__mhchem_ce:n}\cB[ } - \l_tmpa_tl + \l__mhchem_cesplit_tmpa_tl \bool_set_true:N \l__mhchem_cesplit_odd_bool } } - \tl_use:N \l_tmpa_tl + \tl_use:N \l__mhchem_cesplit_tmpa_tl } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -237,13 +232,12 @@ \msg_new:nnn { mhchem } { ce / unexpected-state } { - Assertion~failed:~Unexpected~internal~state~'#1' (ce).~You~found~a~bug.~ - Please~contact~the~package~author. + Assertion~failed:~Unexpected~internal~state~'#1' (ce).~ + You~found~a~bug.~Please~contact~the~package~author. } \bool_new:N \l__mhchem_ce_ceActive_bool \bool_set_false:N \l__mhchem_ce_ceActive_bool \tl_new:N \l__mhchem_ce_state_tl - \int_new:N \l__mhchem_ce_distanceFromLastComma_int \tl_new:N \l__mhchem_ce_result_tl \tl_new:N \l__mhchem_ce_part_tl @@ -253,7 +247,7 @@ \tl_new:N \l__mhchem_ce_arrowTypeTwo_tl \tl_new:N \l__mhchem_ce_arrowTextTwo_tl \bool_new:N \l__mhchem_ce_potentialSpacing_bool -\bool_new:N \l__mhchem_ce_potentialSpacing_future_bool +\bool_new:N \l__mhchem_ce_potentialSpacingAllowed_bool \cs_new_protected:Npn \__mhchem_ce:n #1 { @@ -264,102 +258,102 @@ \bool_set_true:N \l__mhchem_ce_ceActive_bool \__mhchem_output_defMathOrText: \def\hyphen{\mhchem@hyphen}% - \let\mhchem@orig@alpha\alpha - \let\mhchem@orig@beta\beta - \let\mhchem@orig@gamma\gamma - \let\mhchem@orig@delta\delta - \let\mhchem@orig@epsilon\epsilon - \let\mhchem@orig@zeta\zeta - \let\mhchem@orig@eta\eta - \let\mhchem@orig@theta\theta - \let\mhchem@orig@iota\iota - \let\mhchem@orig@kappa\kappa - \let\mhchem@orig@lambda\lambda - \let\mhchem@orig@mu\mu - \let\mhchem@orig@nu\nu - \let\mhchem@orig@xi\xi - \let\mhchem@orig@omicron\omicron - \let\mhchem@orig@pi\pi - \let\mhchem@orig@rho\rho - \let\mhchem@orig@sigma\sigma - \let\mhchem@orig@tau\tau - \let\mhchem@orig@upsilon\upsilon - \let\mhchem@orig@phi\phi - \let\mhchem@orig@chi\chi - \let\mhchem@orig@psi\psi - \let\mhchem@orig@omega\omega - \let\mhchem@orig@Alpha\Alpha - \let\mhchem@orig@Beta\Beta - \let\mhchem@orig@Gamma\Gamma - \let\mhchem@orig@Delta\Delta - \let\mhchem@orig@Epsilon\Epsilon - \let\mhchem@orig@Zeta\Zeta - \let\mhchem@orig@Eta\Eta - \let\mhchem@orig@Theta\Theta - \let\mhchem@orig@Iota\Iota - \let\mhchem@orig@Kappa\Kappa - \let\mhchem@orig@Lambda\Lambda - \let\mhchem@orig@Mu\Mu - \let\mhchem@orig@Nu\Nu - \let\mhchem@orig@Xi\Xi - \let\mhchem@orig@Omicron\Omicron - \let\mhchem@orig@Pi\Pi - \let\mhchem@orig@Rho\Rho - \let\mhchem@orig@Sigma\Sigma - \let\mhchem@orig@Tau\Tau - \let\mhchem@orig@Upsilon\Upsilon - \let\mhchem@orig@Phi\Phi - \let\mhchem@orig@Chi\Chi - \let\mhchem@orig@Psi\Psi - \let\mhchem@orig@Omega\Omega - \def\alpha{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@alpha}} - \def\beta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@beta}} - \def\gamma{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@gamma}} - \def\delta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@delta}} - \def\epsilon{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@epsilon}} - \def\zeta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@zeta}} - \def\eta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@eta}} - \def\theta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@theta}} - \def\iota{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@iota}} - \def\kappa{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@kappa}} - \def\lambda{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@lambda}} - \def\mu{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@mu}} - \def\nu{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@nu}} - \def\xi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@xi}} - \def\omicron{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@omicron}} - \def\pi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@pi}} - \def\rho{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@rho}} - \def\sigma{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@sigma}} - \def\tau{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@tau}} - \def\upsilon{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@upsilon}} - \def\phi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@phi}} - \def\chi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@chi}} - \def\psi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@psi}} - \def\omega{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@omega}} - \def\Alpha{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Alpha}} - \def\Beta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Beta}} - \def\Gamma{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Gamma}} - \def\Delta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Delta}} - \def\Epsilon{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Epsilon}} - \def\Zeta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Zeta}} - \def\Eta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Eta}} - \def\Theta{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Theta}} - \def\Iota{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Iota}} - \def\Kappa{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Kappa}} - \def\Lambda{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Lambda}} - \def\Mu{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Mu}} - \def\Nu{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Nu}} - \def\Xi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Xi}} - \def\Omicron{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Omicron}} - \def\Pi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Pi}} - \def\Rho{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Rho}} - \def\Sigma{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Sigma}} - \def\Tau{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Tau}} - \def\Upsilon{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Upsilon}} - \def\Phi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Phi}} - \def\Chi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Chi}} - \def\Psi{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Psi}} - \def\Omega{\__mhchem_output_escapeToItalicMath:n{\mhchem@orig@Omega}} + \cs_set_eq:NN \__mhchem_output_greek_orig_alpha \alpha + \cs_set_eq:NN \__mhchem_output_greek_orig_beta \beta + \cs_set_eq:NN \__mhchem_output_greek_orig_gamma \gamma + \cs_set_eq:NN \__mhchem_output_greek_orig_delta \delta + \cs_set_eq:NN \__mhchem_output_greek_orig_epsilon \epsilon + \cs_set_eq:NN \__mhchem_output_greek_orig_zeta \zeta + \cs_set_eq:NN \__mhchem_output_greek_orig_eta \eta + \cs_set_eq:NN \__mhchem_output_greek_orig_theta \theta + \cs_set_eq:NN \__mhchem_output_greek_orig_iota \iota + \cs_set_eq:NN \__mhchem_output_greek_orig_kappa \kappa + \cs_set_eq:NN \__mhchem_output_greek_orig_lambda \lambda + \cs_set_eq:NN \__mhchem_output_greek_orig_mu \mu + \cs_set_eq:NN \__mhchem_output_greek_orig_nu \nu + \cs_set_eq:NN \__mhchem_output_greek_orig_xi \xi + \cs_set_eq:NN \__mhchem_output_greek_orig_omicron \omicron + \cs_set_eq:NN \__mhchem_output_greek_orig_pi \pi + \cs_set_eq:NN \__mhchem_output_greek_orig_rho \rho + \cs_set_eq:NN \__mhchem_output_greek_orig_sigma \sigma + \cs_set_eq:NN \__mhchem_output_greek_orig_tau \tau + \cs_set_eq:NN \__mhchem_output_greek_orig_upsilon \upsilon + \cs_set_eq:NN \__mhchem_output_greek_orig_phi \phi + \cs_set_eq:NN \__mhchem_output_greek_orig_chi \chi + \cs_set_eq:NN \__mhchem_output_greek_orig_psi \psi + \cs_set_eq:NN \__mhchem_output_greek_orig_omega \omega + \cs_set_eq:NN \__mhchem_output_greek_orig_Alpha \Alpha + \cs_set_eq:NN \__mhchem_output_greek_orig_Beta \Beta + \cs_set_eq:NN \__mhchem_output_greek_orig_Gamma \Gamma + \cs_set_eq:NN \__mhchem_output_greek_orig_Delta \Delta + \cs_set_eq:NN \__mhchem_output_greek_orig_Epsilon \Epsilon + \cs_set_eq:NN \__mhchem_output_greek_orig_Zeta \Zeta + \cs_set_eq:NN \__mhchem_output_greek_orig_Eta \Eta + \cs_set_eq:NN \__mhchem_output_greek_orig_Theta \Theta + \cs_set_eq:NN \__mhchem_output_greek_orig_Iota \Iota + \cs_set_eq:NN \__mhchem_output_greek_orig_Kappa \Kappa + \cs_set_eq:NN \__mhchem_output_greek_orig_Lambda \Lambda + \cs_set_eq:NN \__mhchem_output_greek_orig_Mu \Mu + \cs_set_eq:NN \__mhchem_output_greek_orig_Nu \Nu + \cs_set_eq:NN \__mhchem_output_greek_orig_Xi \Xi + \cs_set_eq:NN \__mhchem_output_greek_orig_Omicron \Omicron + \cs_set_eq:NN \__mhchem_output_greek_orig_Pi \Pi + \cs_set_eq:NN \__mhchem_output_greek_orig_Rho \Rho + \cs_set_eq:NN \__mhchem_output_greek_orig_Sigma \Sigma + \cs_set_eq:NN \__mhchem_output_greek_orig_Tau \Tau + \cs_set_eq:NN \__mhchem_output_greek_orig_Upsilon \Upsilon + \cs_set_eq:NN \__mhchem_output_greek_orig_Phi \Phi + \cs_set_eq:NN \__mhchem_output_greek_orig_Chi \Chi + \cs_set_eq:NN \__mhchem_output_greek_orig_Psi \Psi + \cs_set_eq:NN \__mhchem_output_greek_orig_Omega \Omega + \def \alpha { \__mhchem_output_greek:n { alpha } } + \def \beta { \__mhchem_output_greek:n { beta } } + \def\gamma { \__mhchem_output_greek:n { gamma } } + \def\delta { \__mhchem_output_greek:n { delta } } + \def\epsilon { \__mhchem_output_greek:n { epsilon } } + \def\zeta { \__mhchem_output_greek:n { zeta } } + \def\eta { \__mhchem_output_greek:n { eta } } + \def\theta { \__mhchem_output_greek:n { theta } } + \def\iota { \__mhchem_output_greek:n { iota } } + \def\kappa { \__mhchem_output_greek:n { kappa } } + \def\lambda { \__mhchem_output_greek:n { lambda } } + \def\mu { \__mhchem_output_greek:n { mu } } + \def\nu { \__mhchem_output_greek:n { nu } } + \def\xi { \__mhchem_output_greek:n { xi } } + \def\omicron { \__mhchem_output_greek:n { omicron } } + \def\pi { \__mhchem_output_greek:n { pi } } + \def\rho { \__mhchem_output_greek:n { rho } } + \def\sigma { \__mhchem_output_greek:n { sigma } } + \def\tau { \__mhchem_output_greek:n { tau } } + \def\upsilon { \__mhchem_output_greek:n { upsilon } } + \def\phi { \__mhchem_output_greek:n { phi } } + \def\chi { \__mhchem_output_greek:n { chi } } + \def\psi { \__mhchem_output_greek:n { psi } } + \def\omega { \__mhchem_output_greek:n { omega } } + \def\Alpha { \__mhchem_output_greek:n { Alpha } } + \def\Beta { \__mhchem_output_greek:n { Beta } } + \def\Gamma { \__mhchem_output_greek:n { Gamma } } + \def\Delta { \__mhchem_output_greek:n { Delta } } + \def\Epsilon { \__mhchem_output_greek:n { Epsilon } } + \def\Zeta { \__mhchem_output_greek:n { Zeta } } + \def\Eta { \__mhchem_output_greek:n { Eta } } + \def\Theta { \__mhchem_output_greek:n { Theta } } + \def\Iota { \__mhchem_output_greek:n { Iota } } + \def\Kappa { \__mhchem_output_greek:n { Kappa } } + \def\Lambda { \__mhchem_output_greek:n { Lambda } } + \def\Mu { \__mhchem_output_greek:n { Mu } } + \def\Nu { \__mhchem_output_greek:n { Nu } } + \def\Xi { \__mhchem_output_greek:n { Xi } } + \def\Omicron { \__mhchem_output_greek:n { Omicron } } + \def\Pi { \__mhchem_output_greek:n { Pi } } + \def\Rho { \__mhchem_output_greek:n { Rho } } + \def\Sigma { \__mhchem_output_greek:n { Sigma } } + \def\Tau { \__mhchem_output_greek:n { Tau } } + \def\Upsilon { \__mhchem_output_greek:n { Upsilon } } + \def\Phi { \__mhchem_output_greek:n { Phi } } + \def\Chi { \__mhchem_output_greek:n { Chi } } + \def\Psi { \__mhchem_output_greek:n { Psi } } + \def\Omega { \__mhchem_output_greek:n { Omega } } } \tl_clear:N \l__mhchem_ce_result_tl \tl_clear:N \l__mhchem_ce_part_tl @@ -385,7 +379,15 @@ { { + } { - \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_operatorPlus: } + \tl_put_right:Nn \l__mhchem_ce_result_tl + { \__mhchem_output_operatorPlus: } + \tl_clear:N \l__mhchem_ce_part_tl + \tl_set:Nn \l__mhchem_ce_state_tl { a-end } + } + { \pm } + { + \tl_put_right:Nn \l__mhchem_ce_result_tl + { \__mhchem_output_operatorPlusMinus: } \tl_clear:N \l__mhchem_ce_part_tl \tl_set:Nn \l__mhchem_ce_state_tl { a-end } } @@ -437,6 +439,26 @@ { { c } { + \peek_catcode_remove:NTF \c_math_toggle_token + { + \peek_catcode:NTF \c_group_begin_token + { + \__mhchem_loopHelper_appendMathAAsGroup:NNw + \l__mhchem_ce_part_tl + \__mhchem_ce_loop: + } + { + \__mhchem_loopHelper_appendMathA:NNw + \l__mhchem_ce_part_tl + \__mhchem_ce_loop: + } + }{ + \peek_catcode:NTF \c_group_begin_token + { + \__mhchem_loopHelper_appendNextGroup:NNn + \l__mhchem_ce_part_tl + \__mhchem_ce_loop: + }{ \peek_charcode_remove:NTF \c_space_token { \int_compare:nTF { \l__mhchem_ce_distanceFromLastComma_int = 1 } @@ -446,7 +468,7 @@ } { \__mhchem_ce_output: - \bool_if:NTF \__mhchem_ce_potentialSpacingAllowed_bool + \bool_if:NTF \l__mhchem_ce_potentialSpacingAllowed_bool { \bool_set_true:N \l__mhchem_ce_potentialSpacing_bool } { \bool_set_false:N \l__mhchem_ce_potentialSpacing_bool } } @@ -458,26 +480,6 @@ \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_part_tl \__mhchem_ce_loop: - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \peek_catcode:NTF \c_group_begin_token - { - \__mhchem_loopHelper_appendMathAAsGroup:NNw - \l__mhchem_ce_part_tl - \__mhchem_ce_loop: - } - { - \__mhchem_loopHelper_appendMathA:NNw - \l__mhchem_ce_part_tl - \__mhchem_ce_loop: - } - }{ - \peek_catcode:NTF \c_group_begin_token - { - \__mhchem_loopHelper_appendNextGroup:NNn - \l__mhchem_ce_part_tl - \__mhchem_ce_loop: } % else { @@ -593,16 +595,6 @@ } { a-]1 } { - \peek_charcode_remove:NTF \c_space_token - { - \tl_put_right:Nn \l__mhchem_ce_arrowTextOne_tl { ~ } - \__mhchem_ce_loop: - }{ - \peek_charcode:NTF ] - { - \tl_set:Nn \l__mhchem_ce_state_tl { a-t2 } - \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: - }{ \peek_catcode:NTF \c_group_begin_token { \__mhchem_loopHelper_appendNextGroup:NNn @@ -611,9 +603,19 @@ }{ \peek_catcode_remove:NTF \c_math_toggle_token { - \__mhchem_loopHelper_appendMathB:nn + \__mhchem_loopHelper_appendWithinMathTokens:nn { l__mhchem_ce_arrowTextOne_tl } { __mhchem_ce_loop: } + }{ + \peek_charcode_remove:NTF \c_space_token + { + \tl_put_right:Nn \l__mhchem_ce_arrowTextOne_tl { ~ } + \__mhchem_ce_loop: + }{ + \peek_charcode:NTF ] + { + \tl_set:Nn \l__mhchem_ce_state_tl { a-t2 } + \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: } % else { @@ -680,17 +682,6 @@ } { a-]2 } { - \peek_charcode_remove:NTF \c_space_token - { - \tl_put_right:Nn \l__mhchem_ce_arrowTextTwo_tl { ~ } - \__mhchem_ce_loop: - }{ - \peek_charcode:NTF ] - { - \__mhchem_ce_output: - \tl_set:Nn \l__mhchem_ce_state_tl { a-end } - \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: - }{ \peek_catcode:NTF \c_group_begin_token { \__mhchem_loopHelper_appendNextGroup:NNn @@ -699,9 +690,20 @@ }{ \peek_catcode_remove:NTF \c_math_toggle_token { - \__mhchem_loopHelper_appendMathB:nn + \__mhchem_loopHelper_appendWithinMathTokens:nn { l__mhchem_ce_arrowTextTwo_tl } { __mhchem_ce_loop: } + }{ + \peek_charcode_remove:NTF \c_space_token + { + \tl_put_right:Nn \l__mhchem_ce_arrowTextTwo_tl { ~ } + \__mhchem_ce_loop: + }{ + \peek_charcode:NTF ] + { + \__mhchem_ce_output: + \tl_set:Nn \l__mhchem_ce_state_tl { a-end } + \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: } % else { @@ -736,7 +738,7 @@ } \cs_new_protected:Npn \__mhchem_ce_output: { - \bool_set_true:N \__mhchem_ce_potentialSpacingAllowed_bool + \bool_set_true:N \l__mhchem_ce_potentialSpacingAllowed_bool \str_case:Vnn \l__mhchem_ce_state_tl { { c } @@ -745,50 +747,63 @@ { { - } { - \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}-{}} } - \bool_set_false:N \__mhchem_ce_potentialSpacingAllowed_bool + \tl_put_right:Nn \l__mhchem_ce_result_tl + { \__mhchem_output_operatorMinus: } + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool + } + { = } + { + \tl_put_right:Nn \l__mhchem_ce_result_tl + { \__mhchem_output_operatorEquals: } + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool + } + { +- } + { + \tl_put_right:Nn \l__mhchem_ce_result_tl + { \__mhchem_output_operatorPlusMinus: } + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool + } + { $\pm$ } + { + \tl_put_right:Nn \l__mhchem_ce_result_tl + { \__mhchem_output_operatorPlusMinus: } + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool } { (v) } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}\mathop{\downarrow}{}} } - \bool_set_false:N \__mhchem_ce_potentialSpacingAllowed_bool + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool } { v } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}\mathop{\downarrow}{}} } - \bool_set_false:N \__mhchem_ce_potentialSpacingAllowed_bool + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool } { (^) } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}\mathop{\uparrow}{}} } - \bool_set_false:N \__mhchem_ce_potentialSpacingAllowed_bool + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool } { ^ } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}\mathop{\uparrow}{}} } - \bool_set_false:N \__mhchem_ce_potentialSpacingAllowed_bool - } - { = } - { - \tl_put_right:Nn \l__mhchem_ce_result_tl - { \__mhchem_output_operatorEquals: } - \bool_set_false:N \__mhchem_ce_potentialSpacingAllowed_bool + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool } { . } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_additionCompound: } - \bool_set_false:N \__mhchem_ce_potentialSpacingAllowed_bool + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool } { * } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_additionCompound: } - \bool_set_false:N \__mhchem_ce_potentialSpacingAllowed_bool + \bool_set_false:N \l__mhchem_ce_potentialSpacingAllowed_bool } { } { @@ -796,16 +811,41 @@ } % else { - \bool_if:NT \l__mhchem_ce_potentialSpacing_bool + \int_compare:nTF { \l__mhchem_option_version_int > 3 } { - \int_compare:nT { \l__mhchem_option_version_int > 3 } - { \tl_put_right:Nn \l__mhchem_ce_result_tl { \mhchem@option@skipAfterAmount } } + \bool_if:NT \l__mhchem_ce_potentialSpacing_bool + { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_skipAfterAmount: } } + \regex_match:nVTF + { \A (.+) (\([a-z]{1,3}\)) \Z } + \l__mhchem_ce_part_tl + { + \regex_replace_once:nnN + { \A (.+) (\([a-z]{1,3}\)) \Z } + { + \c{__mhchem_cf:nn}\cB[\cE]\cB[ \1 \cE] + \c{__mhchem_output_skipBeforeStateOfAggregation:} + \c{__mhchem_cf:nn}\cB[\cE]\cB[ \2 \cE] + } + \l__mhchem_ce_part_tl + \tl_put_right:Nx \l__mhchem_ce_result_tl + { \exp_not:V \l__mhchem_ce_part_tl } + } + { + \tl_put_right:Nx \l__mhchem_ce_result_tl + { + \exp_not:N \__mhchem_cf:nn + {} + { \exp_not:V \l__mhchem_ce_part_tl } + } + } } - \tl_put_right:Nx \l__mhchem_ce_result_tl { - \exp_not:N \__mhchem_cf:nn - {} - { \exp_not:V \l__mhchem_ce_part_tl } + \tl_put_right:Nx \l__mhchem_ce_result_tl + { + \exp_not:N \__mhchem_cf:nn + {} + { \exp_not:V \l__mhchem_ce_part_tl } + } } } } @@ -920,8 +960,8 @@ \ExplSyntaxOn \msg_new:nnn { mhchem } { unexpected-arrow-type } { - Assertion~failed:~Unexpected~arrow~type~'#1'.~You~found~a~bug.~ - Please~contact~the~package~author. + Assertion~failed:~Unexpected~arrow~type~'#1'.~ + You~found~a~bug.~Please~contact~the~package~author. } \cs_new_protected:Npn \__mhchem_arrow_deploy:nnnnn #1#2#3#4#5 { @@ -1319,13 +1359,14 @@ \msg_new:nnn { mhchem } { cf / unexpected-input } { - Assertion~failed:~Unexpected~input~character.~You~found~a~bug.~ - Please~contact~the~package~author. + Assertion~failed:~Unexpected~input~character.~ + In~case~you~think~this~is~a~bug,~ + lease~contact~the~package~author. } \msg_new:nnn { mhchem } { cf / unexpected-state } { - Assertion~failed:~Unexpected~internal~state~'#1' (cf).~You~found~a~bug.~ - Please~contact~the~package~author. + Assertion~failed:~Unexpected~internal~state~'#1' (cf).~ + You~found~a~bug.~Please~contact~the~package~author. } \msg_new:nnn { mhchem } { cf / unexpected-two-superscripts } { @@ -1382,6 +1423,7 @@ \tl_new:N \l__mhchem_cf_supState_tl \tl_new:N \l__mhchem_cf_subState_tl \tl_new:N \l__mhchem_cf_lastElement_tl +\bool_new:N \g__mhchem_cf_lastElementWithScript_bool \cs_new_protected:Npn \__mhchem_cf_resetOutput: { \tl_clear:N \l__mhchem_cf_presup_tl @@ -1403,10 +1445,7 @@ \group_begin: \let\sbond\__mhchem_output_sbond: \int_compare:nTF { 2 = \l__mhchem_option_version_int } - { - \let\bond\sbond - } - % else + { \let\bond\sbond } { \int_compare:nT { \l__mhchem_option_version_int > 2 } { @@ -1475,7 +1514,7 @@ { \__mhchem_cf_outputAndReset: \regex_match:nVTF - { \A (n|\c{eta}|\c{mu}|\c{kappa}|\c{__mhchem_cg_withinMathTokens:n}\cB.n\cE.|\d+|\(\+\)) \Z } + { \A ([nmpx]|\c{eta}|\c{mu}|\c{kappa}|\c{__mhchem_cg_withinMathTokens:n}\cB.[nmpx]\cE.|\d+) \Z } \l__mhchem_cf_lastElement_tl { \__mhchem_cf_outputRawElementAndReset:n @@ -1484,7 +1523,7 @@ { \__mhchem_cf_outputRawElementAndReset:n { \sbond } } - \tl_set:Nn \l__mhchem_cf_state_tl { a } + \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_cf_loop: } { ( } @@ -1503,8 +1542,66 @@ \__mhchem_cf_loop: } } + { ps } + { + \__mhchem_cf_outputAndReset: + \__mhchem_regex_peek:nTF { [ A-Z ] } + { + \regex_match:nVTF + { \A \c{__mhchem_cg_withinMathTokens:n}\cB. (([0-9nmpx]+ [\+\-])? [nmpx] ([\+\-] [0-9nmpx]+)?) \cE. \Z } + \l__mhchem_cf_lastElement_tl + { + \tl_put_right:Nn + \l__mhchem_cf_result_tl + { \__mhchem_output_skipAfterAmount: } + } + {} + \tl_set:Nn \l__mhchem_cf_state_tl { a } + \__mhchem_cf_loop: + } + { + \tl_set:Nn \l__mhchem_cf_state_tl { a } + \__mhchem_cf_loop: + } + } { s } { + \peek_catcode:NTF \mhchem@macro + { + \__mhchem_cf_outputAndReset: + \tl_set:Nn \l__mhchem_cf_state_tl { c } + \__mhchem_loopHelper_appendNextToken:NNn + \l__mhchem_cf_element_tl + \__mhchem_cf_loop: + }{ + \peek_catcode:NTF \c_group_begin_token + { + \__mhchem_cf_outputAndReset: + \int_compare:nTF { \l__mhchem_option_version_int < 4 } + { + \__mhchem_loopHelper_outputAndReset_append_appendNextGroupToResult:nNnn + {} + \__mhchem_cf_loop: + } + % else + { + \tl_set:Nn \l__mhchem_cf_state_tl { a } + \__mhchem_loopHelper_appendNextGroup_prefix_ifEmpty:NnnNn + \l__mhchem_cf_element_tl + { \__mhchem_cg_escapeFromMathToTextOrFaketext:n } + { \tl_set:Nn \l__mhchem_cf_state_tl { s } } + \__mhchem_cf_loop: + } + }{ + \peek_catcode_remove:NTF \c_math_toggle_token + { + \int_compare:nTF { \l__mhchem_option_version_int > 3 } + { \tl_set:Nn \l__mhchem_cf_state_tl { ps } } + { \tl_set:Nn \l__mhchem_cf_state_tl { a } } + \__mhchem_loopHelper_appendWithinMathTokens:nn + { l__mhchem_cf_element_tl } + { __mhchem_cf_loop: } + }{ \peek_charcode:NTF - { \__mhchem_cf_outputAndReset: @@ -1623,15 +1720,7 @@ { a } \__mhchem_cf_loop: }{ - \peek_catcode:NTF \mhchem@macro - { - \__mhchem_cf_outputAndReset: - \tl_set:Nn \l__mhchem_cf_state_tl { c } - \__mhchem_loopHelper_appendNextToken:NNn - \l__mhchem_cf_element_tl - \__mhchem_cf_loop: - }{ - \peek_catcode:NTF a + \__mhchem_regex_peek:nTF { [ a-zA-Z ] } { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_loopHelper_appendNextToken:NNn @@ -1643,32 +1732,6 @@ \__mhchem_cf_outputAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { 1 } \__mhchem_cf_loop: - }{ - \peek_catcode:NTF \c_group_begin_token - { - \__mhchem_cf_outputAndReset: - \int_compare:nTF { \l__mhchem_option_version_int < 4 } - { - \__mhchem_loopHelper_outputAndReset_append_appendNextGroupToResult:nNnn - {} - \__mhchem_cf_loop: - } - % else - { - \tl_set:Nn \l__mhchem_cf_state_tl { a } - \__mhchem_loopHelper_appendNextGroup_prefix_ifEmpty:NnnNn - \l__mhchem_cf_element_tl - { \__mhchem_cg_escapeFromMathToTextOrFaketext:n } - { \tl_set:Nn \l__mhchem_cf_state_tl { s } } - \__mhchem_cf_loop: - } - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \tl_set:Nn \l__mhchem_cf_state_tl { a } - \__mhchem_loopHelper_appendMathB:nn - { l__mhchem_cf_element_tl } - { __mhchem_cf_loop: } } % else { \msg_error:nnn { mhchem } { cf / unexpected-input } } @@ -1726,6 +1789,42 @@ } { a } { + \peek_catcode:NTF \mhchem@macro + { + \__mhchem_cf_outputAndReset: + \tl_set:Nn \l__mhchem_cf_state_tl { c } + \__mhchem_loopHelper_appendNextToken:NNn + \l__mhchem_cf_element_tl + \__mhchem_cf_loop: + }{ + \peek_catcode:NTF \c_group_begin_token + { + \__mhchem_cf_outputAndReset: + \int_compare:nTF { \l__mhchem_option_version_int < 4 } + { + \__mhchem_loopHelper_appendNextGroup:NNn + \l__mhchem_cf_result_tl + \__mhchem_cf_loop: + } + % else + { + \__mhchem_loopHelper_appendNextGroup_prefix_ifEmpty:NnnNn + \l__mhchem_cf_element_tl + { \__mhchem_cg_escapeFromMathToTextOrFaketext:n } + {} + \__mhchem_cf_loop: + } + }{ + \peek_catcode_remove:NTF \c_math_toggle_token + { + \str_if_eq:VnF \l__mhchem_cf_supState_tl { - } + { \__mhchem_cf_outputAndReset: } + \str_if_eq:VnF \l__mhchem_cf_subState_tl { - } + { \__mhchem_cf_outputAndReset: } + \__mhchem_loopHelper_appendWithinMathTokens:nn + { l__mhchem_cf_element_tl } + { __mhchem_cf_loop: } + }{ \peek_charcode:NTF - { \tl_set:Nn \l__mhchem_cf_state_tl { - } @@ -1827,15 +1926,7 @@ { a } \__mhchem_cf_loop: }{ - \peek_catcode:NTF \mhchem@macro - { - \__mhchem_cf_outputAndReset: - \tl_set:Nn \l__mhchem_cf_state_tl { c } - \__mhchem_loopHelper_appendNextToken:NNn - \l__mhchem_cf_element_tl - \__mhchem_cf_loop: - }{ - \peek_catcode:NTF a % letter + \__mhchem_regex_peek:nTF { [ a-zA-Z ] } { \str_if_eq:VnTF \l__mhchem_cf_supState_tl { - } { @@ -1874,34 +1965,6 @@ \tl_set:Nn \l__mhchem_cf_subState_tl { d } \tl_set:Nn \l__mhchem_cf_state_tl { f } \__mhchem_cf_loop: - }{ - \peek_catcode:NTF \c_group_begin_token - { - \__mhchem_cf_outputAndReset: - \int_compare:nTF { \l__mhchem_option_version_int < 4 } - { - \__mhchem_loopHelper_appendNextGroup:NNn - \l__mhchem_cf_result_tl - \__mhchem_cf_loop: - } - % else - { - \__mhchem_loopHelper_appendNextGroup_prefix_ifEmpty:NnnNn - \l__mhchem_cf_element_tl - { \__mhchem_cg_escapeFromMathToTextOrFaketext:n } - {} - \__mhchem_cf_loop: - } - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \str_if_eq:VnF \l__mhchem_cf_supState_tl { - } - { \__mhchem_cf_outputAndReset: } - \str_if_eq:VnF \l__mhchem_cf_subState_tl { - } - { \__mhchem_cf_outputAndReset: } - \__mhchem_loopHelper_appendMathB:nn - { l__mhchem_cf_element_tl } - { __mhchem_cf_loop: } } % else { @@ -1915,19 +1978,19 @@ } { e } { + \peek_catcode_remove:NTF \c_math_toggle_token + { + \tl_set:Nn \l__mhchem_cf_state_tl { a } + \__mhchem_loopHelper_appendWithinMathTokens:nn + { l__mhchem_cf_sup_tl } + { __mhchem_cf_loop: } + }{ \__mhchem_regex_peek:nTF { [0-9] } { \tl_set:Nn \l__mhchem_cf_state_tl { e+ } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sup_tl \__mhchem_cf_loop: - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \tl_set:Nn \l__mhchem_cf_state_tl { a } - \__mhchem_loopHelper_appendMathB:nn - { l__mhchem_cf_sup_tl } - { __mhchem_cf_loop: } } % else { @@ -1971,19 +2034,19 @@ } { f } { - \__mhchem_regex_peek:nTF { [0-9] } - { - \tl_set:Nn \l__mhchem_cf_state_tl { f+ } - \__mhchem_loopHelper_appendNextToken:NNn - \l__mhchem_cf_sub_tl - \__mhchem_cf_loop: - }{ \peek_catcode_remove:NTF \c_math_toggle_token { \tl_set:Nn \l__mhchem_cf_state_tl { a } - \__mhchem_loopHelper_appendMathB:nn + \__mhchem_loopHelper_appendWithinMathTokens:nn { l__mhchem_cf_sub_tl } { __mhchem_cf_loop: } + }{ + \__mhchem_regex_peek:nTF { [ 0-9 \/ ] } + { + \tl_set:Nn \l__mhchem_cf_state_tl { f+ } + \__mhchem_loopHelper_appendNextToken:NNn + \l__mhchem_cf_sub_tl + \__mhchem_cf_loop: } % else { @@ -1996,7 +2059,7 @@ } { f+ } { - \__mhchem_regex_peek:nTF { [0-9] } + \__mhchem_regex_peek:nTF { [ 0-9 \/ ] } { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sub_tl @@ -2010,19 +2073,19 @@ } { p } { + \peek_catcode_remove:NTF \c_math_toggle_token + { + \tl_set:Nn \l__mhchem_cf_state_tl { s } + \__mhchem_loopHelper_appendWithinMathTokens:nn + { l__mhchem_cf_presup_tl } + { __mhchem_cf_loop: } + }{ \__mhchem_regex_peek:nTF { [0-9] } { \tl_set:Nn \l__mhchem_cf_state_tl { p+ } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_presup_tl \__mhchem_cf_loop: - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \tl_set:Nn \l__mhchem_cf_state_tl { s } - \__mhchem_loopHelper_appendMathB:nn - { l__mhchem_cf_presup_tl } - { __mhchem_cf_loop: } } % else { @@ -2049,19 +2112,19 @@ } { q } { + \peek_catcode_remove:NTF \c_math_toggle_token + { + \tl_set:Nn \l__mhchem_cf_state_tl { s } + \__mhchem_loopHelper_appendWithinMathTokens:nn + { l__mhchem_cf_presub_tl } + { __mhchem_cf_loop: } + }{ \__mhchem_regex_peek:nTF { [0-9] } { \tl_set:Nn \l__mhchem_cf_state_tl { q+ } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_presub_tl \__mhchem_cf_loop: - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \tl_set:Nn \l__mhchem_cf_state_tl { s } - \__mhchem_loopHelper_appendMathB:nn - { l__mhchem_cf_presub_tl } - { __mhchem_cf_loop: } } % else { @@ -2111,6 +2174,11 @@ } { \tl_set:NV \l__mhchem_cf_lastElement_tl \l__mhchem_cf_element_tl + \bool_gset:Nn \g__mhchem_cf_lastElementWithScript_bool + { + ! \tl_if_empty_p:N \l__mhchem_cf_sub_tl || + ! \tl_if_empty_p:N \l__mhchem_cf_sup_tl + } \str_case:Vnn \l__mhchem_cf_state_tl { { 1 } @@ -2121,7 +2189,7 @@ \exp_not:N \__mhchem_output_withFont:n { \exp_not:V \l__mhchem_cf_element_tl } - \exp_not:N \mhchem@option@skipAfterAmount + \exp_not:N \__mhchem_output_skipAfterAmount: } } { 9 } @@ -2149,6 +2217,11 @@ \str_if_eq:VnTF \l__mhchem_cf_supState_tl { rm } { \tl_set:Nx \l__mhchem_cf_sup_tl { \exp_not:N \__mhchem_output_escapeToRomanMath:n { \exp_not:V \l__mhchem_cf_sup_tl } } } { \__mhchem_cg_replaceForSuperscript:N \l__mhchem_cf_sup_tl } + \regex_match:nVTF + { \A [IVX]+ \Z } + \l__mhchem_cf_sup_tl + { \tl_set:Nn \l__mhchem_cf_supState_tl { ox } } + {} \bool_if:nT { \str_if_eq_p:Vn \l__mhchem_cf_supState_tl { kv } && @@ -2161,11 +2234,26 @@ { \tl_put_right:Nx \l__mhchem_cf_result_tl { - \exp_not:N \__mhchem_output_coreFive:nnnnnn + \exp_not:N \__mhchem_output_coreFive:nnnnnnn + { \exp_not:V \l__mhchem_cf_presup_tl } + { \exp_not:V \l__mhchem_cf_presub_tl } + { \exp_not:V \l__mhchem_cf_element_tl } + {} + { \exp_not:V \l__mhchem_cf_sup_tl } + { \exp_not:V \l__mhchem_cf_sub_tl } + {} + } + } + { ox } + { + \tl_put_right:Nx \l__mhchem_cf_result_tl + { + \exp_not:N \__mhchem_output_coreFive:nnnnnnn { \exp_not:V \l__mhchem_cf_presup_tl } { \exp_not:V \l__mhchem_cf_presub_tl } { \exp_not:V \l__mhchem_cf_element_tl } { \exp_not:V \l__mhchem_cf_sup_tl } + {} { \exp_not:V \l__mhchem_cf_sub_tl } {} } @@ -2174,11 +2262,12 @@ { \tl_put_right:Nx \l__mhchem_cf_result_tl { - \exp_not:N \__mhchem_output_coreFive:nnnnnn + \exp_not:N \__mhchem_output_coreFive:nnnnnnn { \exp_not:V \l__mhchem_cf_presup_tl } { \exp_not:V \l__mhchem_cf_presub_tl } { \exp_not:V \l__mhchem_cf_element_tl } {} + {} { \exp_not:V \l__mhchem_cf_sub_tl } { \exp_not:V \l__mhchem_cf_sup_tl } } @@ -2210,6 +2299,8 @@ %%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% cg %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%% + +\tl_new:N \l__mhchem_cg_withinMathTokens_tmpa_tl \cs_new_protected:Npn \__mhchem_cg_withinMathTokens:n #1 { \int_compare:nTF { \l__mhchem_option_version_int > 3 } @@ -2217,7 +2308,7 @@ \regex_match:nnTF { \A \cB. [^\cE.]* \cE. \Z } {#1} { - \__mhchem_output_escapeFromMathToItalicMath:n { #1 } + \__mhchem_output_escapeFromMathToItalicMath:n {#1} } % else { @@ -2225,35 +2316,31 @@ { \A [1-9a-zA-Z\ \~\+\-\,\.\(\)\c{alpha}\c{beta}\c{gamma}\c{delta}\c{epsilon}\c{zeta}\c{eta}\c{theta}\c{iota}\c{kappa}\c{lambda}\c{mu}\c{nu}\c{xi}\c{omicron}\c{pi}\c{rho}\c{sigma}\c{tau}\c{upsilon}\c{phi}\c{chi}\c{psi}\c{omega}\c{Alpha}\c{Beta}\c{Gamma}\c{Delta}\c{Epsilon}\c{Zeta}\c{Eta}\c{Theta}\c{Iota}\c{Kappa}\c{Lambda}\c{Mu}\c{Nu}\c{Xi}\c{Omicron}\c{Pi}\c{Rho}\c{Sigma}\c{Tau}\c{Upsilon}\c{Phi}\c{Chi}\c{Psi}\c{Omega}]+ \Z } {#1} { - { - \bool_if:NTF \l__mhchem_output_isMathMode_bool - { - \int_compare:nT - { \l__mhchem_option_version_int > 3 } - { - \thinmuskip=0mu - \medmuskip=0mu - \thickmuskip=0mu - } - \__mhchem_output_escapeFromMathToItalicMath:n {#1} - } - { - \tl_set:Nn \l_tmpa_tl { #1 } - \regex_replace_all:nnN - { [a-zA-Z]+ } - { \c{__mhchem_output_escapeFromTextToItalicText:n} \cB[ \0 \cE] } - \l_tmpa_tl - \regex_replace_all:nnN - { [\ ]+ } - {} - \l_tmpa_tl - \regex_replace_all:nnN - { - } - { \c{mhchem@option@textminus} } - \l_tmpa_tl - \tl_use:N \l_tmpa_tl - } - } + \group_begin: + \bool_if:NTF \l__mhchem_output_isMathMode_bool + { + \thinmuskip=0mu + \medmuskip=0mu + \thickmuskip=0mu + \__mhchem_output_escapeFromMathToItalicMath:n {#1} + } + { + \tl_set:Nn \l__mhchem_cg_withinMathTokens_tmpa_tl { #1 } + \regex_replace_all:nnN + { [a-zA-Z]+ } + { \c{__mhchem_output_escapeFromTextToItalicText:n} \cB[ \0 \cE] } + \l__mhchem_cg_withinMathTokens_tmpa_tl + \regex_replace_all:nnN + { [\ ]+ } + {} + \l__mhchem_cg_withinMathTokens_tmpa_tl + \regex_replace_all:nnN + { - } + { \c{mhchem@option@textminus} } + \l__mhchem_cg_withinMathTokens_tmpa_tl + \tl_use:N \l__mhchem_cg_withinMathTokens_tmpa_tl + } + \group_end: } { \bool_if:NTF \l__mhchem_output_isMathMode_bool @@ -2267,6 +2354,12 @@ \__mhchem_output_escapeFromMathToItalicMath:n {#1} } } +\tl_new:N \g__mhchem_cg_potentialSpaceAfterWithinMath_tl +\cs_new_protected:Npn \__mhchem_cg_potentialSpaceAfterWithinMath: + { + \tl_use:N \g__mhchem_cg_potentialSpaceAfterWithinMath_tl + \tl_gclear:N \g__mhchem_cg_potentialSpaceAfterWithinMath_tl + } \cs_new_protected:Npn \__mhchem_cg_itshape:n #1 { \int_compare:nTF { \l__mhchem_option_version_int > 3 } @@ -2295,6 +2388,19 @@ \peek_meaning:NTF \q_recursion_stop { \use_none:n } { + \peek_catcode_remove:NTF \c_math_toggle_token + { + \__mhchem_loopHelper_appendWithinMathTokens:nn + { l__mhchem_cg_escapeFromMathToFakeText_result_tl } + { __mhchem_cg_escapeFromMathToFakeText_loop: } + } + { + \peek_catcode:NTF \c_group_begin_token + { + \__mhchem_loopHelper_appendNextGroup:NNn + \l__mhchem_cg_escapeFromMathToFakeText_result_tl + \__mhchem_cg_escapeFromMathToFakeText_loop: + }{ \peek_charcode_remove:NTF \c_space_token { \tl_put_right:Nn @@ -2308,19 +2414,6 @@ \l__mhchem_cg_escapeFromMathToFakeText_result_tl { \mhchem@hyphen } \__mhchem_cg_escapeFromMathToFakeText_loop: - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \__mhchem_loopHelper_appendMathB:nn - { l__mhchem_cg_escapeFromMathToFakeText_result_tl } - { __mhchem_cg_escapeFromMathToFakeText_loop: } - } - { - \peek_catcode:NTF \c_group_begin_token - { - \__mhchem_loopHelper_appendNextGroup:NNn - \l__mhchem_cg_escapeFromMathToFakeText_result_tl - \__mhchem_cg_escapeFromMathToFakeText_loop: } % else { @@ -2390,6 +2483,21 @@ \peek_meaning:NTF \q_recursion_stop { \use_none:n } { + \peek_catcode_remove:NTF \c_math_toggle_token + { + \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } + \__mhchem_loopHelper_appendWithinMathTokens:nn + { l__mhchem_cg_replaceForSubscript_result_tl } + { __mhchem_cg_replaceForSubscript_loop: } + } + { + \peek_catcode:NTF \c_group_begin_token + { + \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } + \__mhchem_loopHelper_appendNextGroup:NNn + \l__mhchem_cg_replaceForSubscript_result_tl + \__mhchem_cg_replaceForSubscript_loop: + }{ \__mhchem_regex_peek:nTF { [0-9] } { \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { 9 } @@ -2423,21 +2531,6 @@ } \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } \__mhchem_cg_replaceForSubscript_loop: - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } - \__mhchem_loopHelper_appendMathB:nn - { l__mhchem_cg_replaceForSubscript_result_tl } - { __mhchem_cg_replaceForSubscript_loop: } - } - { - \peek_catcode:NTF \c_group_begin_token - { - \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } - \__mhchem_loopHelper_appendNextGroup:NNn - \l__mhchem_cg_replaceForSubscript_result_tl - \__mhchem_cg_replaceForSubscript_loop: } % else { @@ -2469,6 +2562,30 @@ } \use_none:n }{ + \peek_catcode_remove:NTF \c_math_toggle_token + { + \str_if_eq:VnT \l__mhchem_cg_replaceForSuperscript_state_tl { 9. } + { + \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl + { \__mhchem_output_electronDot: } + } + \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } + \__mhchem_loopHelper_appendWithinMathTokens:nn + { l__mhchem_cg_replaceForSuperscript_result_tl } + { __mhchem_cg_replaceForSuperscript_loop: } + }{ + \peek_catcode:NTF \c_group_begin_token + { + \str_if_eq:VnT \l__mhchem_cg_replaceForSuperscript_state_tl { 9. } + { + \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl + { \__mhchem_output_electronDot: } + } + \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } + \__mhchem_loopHelper_appendNextGroup:NNn + \l__mhchem_cg_replaceForSuperscript_result_tl + \__mhchem_cg_replaceForSuperscript_loop: + }{ \peek_charcode_remove:NTF - { \str_if_eq:VnT \l__mhchem_cg_replaceForSuperscript_state_tl { 9. } @@ -2556,30 +2673,6 @@ } \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } \__mhchem_cg_replaceForSuperscript_loop: - }{ - \peek_catcode_remove:NTF \c_math_toggle_token - { - \str_if_eq:VnT \l__mhchem_cg_replaceForSuperscript_state_tl { 9. } - { - \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl - { \__mhchem_output_electronDot: } - } - \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } - \__mhchem_loopHelper_appendMathB:nn - { l__mhchem_cg_replaceForSuperscript_result_tl } - { __mhchem_cg_replaceForSuperscript_loop: } - }{ - \peek_catcode:NTF \c_group_begin_token - { - \str_if_eq:VnT \l__mhchem_cg_replaceForSuperscript_state_tl { 9. } - { - \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl - { \__mhchem_output_electronDot: } - } - \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } - \__mhchem_loopHelper_appendNextGroup:NNn - \l__mhchem_cg_replaceForSuperscript_result_tl - \__mhchem_cg_replaceForSuperscript_loop: } % else { @@ -2615,11 +2708,11 @@ \mhchem@option@textFont } } -\cs_new_protected:Npn \__mhchem_output_coreFive:nnnnnn #1#2#3#4#5#6 +\cs_new_protected:Npn \__mhchem_output_coreFive:nnnnnnn #1#2#3#4#5#6#7 { \group_begin: \bool_if:nT - { \str_if_eq_p:nn {#6} {} && ! \str_if_eq_p:nn {#4} {} } + { \str_if_eq_p:nn {#7} {} && ! \str_if_eq_p:nn {#5} {} } { \bool_set_true:N \l__mhchem_option_superscriptsStacked_bool } \m@th \ensuremath @@ -2647,66 +2740,80 @@ \mhchem@minispace } \__mhchem_output_withFont:n {#3} - \str_if_eq:nnF {#4#6#5} {} + \str_if_eq:nnF {#4#5#6#7} {} { \bool_if:NTF \l__mhchem_option_superscriptsStacked_bool { { \vphantom { \__mhchem_output_withFont:n { X } } } - \str_if_eq:nnF {#5} {} + \str_if_eq:nnF {#6} {} { \c_math_subscript_token { \vphantom { \__mhchem_output_scriptWithFont:n { 2 } } - \smash[t] { \__mhchem_output_scriptWithFont:n {#5} } + \smash[t] { \__mhchem_output_scriptWithFont:n {#6} } } } ^ { \vphantom { \smash[t] { \__mhchem_output_scriptWithFont:n { 2+ } } } - \__mhchem_output_scriptWithFont:n {#4#6} + \__mhchem_output_scriptWithFont:n {#4#5#7} } } % else { \bool_if:NTF \l__mhchem_option_subscriptsDeep_bool { - { \vphantom { \__mhchem_output_withFont:n { X } } } - \str_if_eq:nnF {#5} {} + \str_if_eq:nnF {#4} {} { + { \vphantom { \__mhchem_output_withFont:n { X } } } + ^ { + \vphantom { \smash[t] { \__mhchem_output_scriptWithFont:n { 2+ } } } + \__mhchem_output_scriptWithFont:n {#4} + } \c_math_subscript_token { \vphantom { \__mhchem_output_scriptWithFont:n { 2 } } - \smash[t] { \__mhchem_output_scriptWithFont:n {#5} } } } - \str_if_eq:nnTF {#4#6} {} + \str_if_eq:nnF {#5#6#7} {} { + { \vphantom { \__mhchem_output_withFont:n { X } } } + \str_if_eq:nnF {#6} {} + { + \c_math_subscript_token + { + \vphantom { \__mhchem_output_scriptWithFont:n { 2 } } + \smash[t] { \__mhchem_output_scriptWithFont:n {#6} } + } + } ^ { \vphantom { \smash[t] { \__mhchem_output_scriptWithFont:n { 2+ } } } + \hphantom { \__mhchem_output_scriptWithFont:n {#6} } + \__mhchem_output_scriptWithFont:n {#5#7} } } + } + { + \str_if_eq:nnF {#4} {} { + { \vphantom { \__mhchem_output_withFont:n { X } } } ^ { - \vphantom { \smash[t] { \__mhchem_output_scriptWithFont:n { 2+ } } } - \hphantom { \__mhchem_output_scriptWithFont:n {#5} } - \__mhchem_output_scriptWithFont:n {#4#6} + \__mhchem_output_scriptWithFont:n {#4} } } - } - { - \str_if_eq:nnF {#5} {} + \str_if_eq:nnF {#6} {} { { \vphantom { \__mhchem_output_withFont:n { X } } } \c_math_subscript_token { \vphantom { \__mhchem_output_scriptWithFont:n { 2 } } - \smash[t] { \__mhchem_output_scriptWithFont:n {#5} } + \smash[t] { \__mhchem_output_scriptWithFont:n {#6} } } } - \str_if_eq:nnF {#4#6} {} + \str_if_eq:nnF {#5#7} {} { { \vphantom { \__mhchem_output_withFont:n { X } } } ^ { - \__mhchem_output_scriptWithFont:n {#4#6} + \__mhchem_output_scriptWithFont:n {#5#7} } } } @@ -2766,15 +2873,14 @@ \ensuremath { \mhchem@hook@beforeItalicMath - \bool_if:NT \l__mhchem_cg_isScript_bool - { - \medmuskip=0mu - \thinmuskip=0mu - \thickmuskip=0mu - } #1 } } + +\cs_new_protected:Npn \__mhchem_output_skipAfterAmount: + { \, } +\cs_new_protected:Npn \__mhchem_output_skipBeforeStateOfAggregation: + { \bool_if:NF \g__mhchem_cf_lastElementWithScript_bool { \hspace{0.2ex} } } \cs_new_protected:Npn \__mhchem_output_minus: { \bool_if:NTF \l__mhchem_output_isMathMode_bool @@ -2785,13 +2891,27 @@ { \bool_if:NTF \l__mhchem_output_isMathMode_bool { {}+{} } - { \hspace{0.5ex} + \hspace{0.5ex} } + { \hspace{0.5ex minus 0.5ex} + \hspace{0.5ex minus 0.5ex} } } \cs_new_protected:Npn \__mhchem_output_operatorPlus: { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { \ensuremath { {}+{} } } - { \__mhchem_output_plus: } + { + \bool_if:NTF \l__mhchem_output_isMathMode_bool + { {}+{} } + { \nobreak \hspace{0.5ex plus 0.3ex minus 0.3ex} + \hspace{0.5ex plus 0.3ex minus 0.3ex} } + } + } +\cs_new_protected:Npn \__mhchem_output_operatorMinus: + { + \int_compare:nTF { \l__mhchem_option_version_int < 4 } + { \ensuremath { {}-{} } } + { + \bool_if:NTF \l__mhchem_output_isMathMode_bool + { \nobreak \hspace{0.5ex plus 0.3ex minus 0.1ex} {-} \hspace{0.5ex plus 0.3ex minus 0.1ex} } + { \nobreak \hspace{0.6ex plus 0.3ex minus 0.1ex} -- \hspace{0.6ex plus 0.3ex minus 0.1ex} } + } } \cs_new_protected:Npn \__mhchem_output_operatorEquals: { @@ -2799,10 +2919,16 @@ { {}={} } { \bool_if:NTF \l__mhchem_output_isMathMode_bool - { {}={} } - { \hspace{0.5ex} = \hspace{0.5ex} } + { \nobreak \hspace{0.5ex plus 0.3ex minus 0.1ex} {=} \hspace{0.5ex plus 0.3ex minus 0.1ex} } + { \nobreak \hspace{0.6ex plus 0.3ex minus 0.1ex} = \hspace{0.6ex plus 0.3ex minus 0.1ex} } } } +\cs_new_protected:Npn \__mhchem_output_operatorPlusMinus: + { + \bool_if:NTF \l__mhchem_output_isMathMode_bool + { {}\pm{} } + { \nobreak \ensuremath { {}\pm{} } } + } \cs_new_protected:Npn \__mhchem_output_electronDot: { \bool_if:NTF \l__mhchem_output_isMathMode_bool @@ -2838,6 +2964,63 @@ { \__mhchem_output_commaEnumerationSmall: } } +\cs_new_protected:Npn \__mhchem_output_greek:n #1 + { + \group_begin: + \cs_set_eq:NN \alpha \__mhchem_output_greek_orig_alpha + \cs_set_eq:NN \beta \__mhchem_output_greek_orig_beta + \cs_set_eq:NN \gamma \__mhchem_output_greek_orig_gamma + \cs_set_eq:NN \delta \__mhchem_output_greek_orig_delta + \cs_set_eq:NN \epsilon \__mhchem_output_greek_orig_epsilon + \cs_set_eq:NN \zeta \__mhchem_output_greek_orig_zeta + \cs_set_eq:NN \eta \__mhchem_output_greek_orig_eta + \cs_set_eq:NN \theta \__mhchem_output_greek_orig_theta + \cs_set_eq:NN \iota \__mhchem_output_greek_orig_iota + \cs_set_eq:NN \kappa \__mhchem_output_greek_orig_kappa + \cs_set_eq:NN \lambda \__mhchem_output_greek_orig_lambda + \cs_set_eq:NN \mu \__mhchem_output_greek_orig_mu + \cs_set_eq:NN \nu \__mhchem_output_greek_orig_nu + \cs_set_eq:NN \xi \__mhchem_output_greek_orig_xi + \cs_set_eq:NN \omicron \__mhchem_output_greek_orig_omicron + \cs_set_eq:NN \pi \__mhchem_output_greek_orig_pi + \cs_set_eq:NN \rho \__mhchem_output_greek_orig_rho + \cs_set_eq:NN \sigma \__mhchem_output_greek_orig_sigma + \cs_set_eq:NN \tau \__mhchem_output_greek_orig_tau + \cs_set_eq:NN \upsilon \__mhchem_output_greek_orig_upsilon + \cs_set_eq:NN \phi \__mhchem_output_greek_orig_phi + \cs_set_eq:NN \chi \__mhchem_output_greek_orig_chi + \cs_set_eq:NN \psi \__mhchem_output_greek_orig_psi + \cs_set_eq:NN \omega \__mhchem_output_greek_orig_omega + \cs_set_eq:NN \Alpha \__mhchem_output_greek_orig_Alpha + \cs_set_eq:NN \Beta \__mhchem_output_greek_orig_Beta + \cs_set_eq:NN \Gamma \__mhchem_output_greek_orig_Gamma + \cs_set_eq:NN \Delta \__mhchem_output_greek_orig_Delta + \cs_set_eq:NN \Epsilon \__mhchem_output_greek_orig_Epsilon + \cs_set_eq:NN \Zeta \__mhchem_output_greek_orig_Zeta + \cs_set_eq:NN \Eta \__mhchem_output_greek_orig_Eta + \cs_set_eq:NN \Theta \__mhchem_output_greek_orig_Theta + \cs_set_eq:NN \Iota \__mhchem_output_greek_orig_Iota + \cs_set_eq:NN \Kappa \__mhchem_output_greek_orig_Kappa + \cs_set_eq:NN \Lambda \__mhchem_output_greek_orig_Lambda + \cs_set_eq:NN \Mu \__mhchem_output_greek_orig_Mu + \cs_set_eq:NN \Nu \__mhchem_output_greek_orig_Nu + \cs_set_eq:NN \Xi \__mhchem_output_greek_orig_Xi + \cs_set_eq:NN \Omicron \__mhchem_output_greek_orig_Omicron + \cs_set_eq:NN \Pi \__mhchem_output_greek_orig_Pi + \cs_set_eq:NN \Rho \__mhchem_output_greek_orig_Rho + \cs_set_eq:NN \Sigma \__mhchem_output_greek_orig_Sigma + \cs_set_eq:NN \Tau \__mhchem_output_greek_orig_Tau + \cs_set_eq:NN \Upsilon \__mhchem_output_greek_orig_Upsilon + \cs_set_eq:NN \Phi \__mhchem_output_greek_orig_Phi + \cs_set_eq:NN \Chi \__mhchem_output_greek_orig_Chi + \cs_set_eq:NN \Psi \__mhchem_output_greek_orig_Psi + \cs_set_eq:NN \Omega \__mhchem_output_greek_orig_Omega + \mode_if_math:TF + { \chemgreek_get_from_mapping:nn { mhchem-math } {#1} } + { \chemgreek_get_from_mapping:nn { mhchem-text } {#1} } + \group_end: + } + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% bonds %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -2991,12 +3174,14 @@ { You~did~not~specify~a~'version'~option~for~the~mhchem~package.~ Please~write~ - \string\usepackage[version=3]{mhchem}~in~your~preamble~ - (or~any~lower~number~for~compatibility~mode). + \string\usepackage[version=4]{mhchem}~in~your~preamble~ + (or~any~lower~number~for~compatibility~mode),~ + because~you~might~get~different~output~with~the~same~input~ + in~future~versions. } \msg_new:nnn { mhchem } { options / version-too-high } { - You~are~using~version~3.xx~of~mhchem, + You~are~using~version~4.xx~of~mhchem, but~you~entered~a~higher~version~number.~ This~means,~you~are~using~some~beta~features~of~mhchem~ that~are~subject~to~change~without~notice. @@ -3016,8 +3201,10 @@ \bool_new:N \l__mhchem_option_subscriptsDeep_bool \cs_new_protected:Npn \mhchem@option@textElectronDot {} \cs_new_protected:Npn \mhchem@option@cdot {} -\bool_new:N \l__mhchem_option_greekSelectedByUser -\bool_set_false:N \l__mhchem_option_greekSelectedByUser +\bool_new:N \l__mhchem_option_textgreekSelectedByUser +\bool_set_false:N \l__mhchem_option_textgreekSelectedByUser +\bool_new:N \l__mhchem_option_mathgreekSelectedByUser +\bool_set_false:N \l__mhchem_option_mathgreekSelectedByUser \keys_define:nn {mhchem} { @@ -3042,6 +3229,17 @@ \def\mhchem@option@mathFont{\mathrm} }, + text-greek .code:n = + { + \chemgreek_declare_mapping_alias:nn { mhchem-text } {#1} + \bool_set_true:N \l__mhchem_option_textgreekSelectedByUser + }, + math-greek .code:n = + { + \chemgreek_declare_mapping_alias:nn { mhchem-math } {#1} + \bool_set_true:N \l__mhchem_option_mathgreekSelectedByUser + }, + layout .choice:, layout / stacked .code:n = { @@ -3094,12 +3292,6 @@ }, arrows .initial:n = { font }, - skip-after-amount .code:n = - { - \def\mhchem@option@skipAfterAmount{#1} - }, - skip-after-amount .initial:n = { \, }, - textminus .code:n = { \def\mhchem@option@textminus{#1} }, textminus .initial:n = { \hspace{0.3ex} -- \hspace{0.3ex} }, @@ -3125,7 +3317,7 @@ \int_compare:nT { -1 = \l__mhchem_option_version_int } { - \msg_error:nn { mhchem } { options / no-version } + \msg_warning:nn { mhchem } { options / no-version } \int_set:Nn \l__mhchem_option_version_int { 4 } } % else @@ -3142,6 +3334,18 @@ { \mhchemoptions{layout=staggered-flat} } } +\AtBeginDocument + { + \bool_if:nF \l__mhchem_option_textgreekSelectedByUser + { + \chemgreek_declare_mapping_alias:nn { mhchem-text } { \l_chemgreek_active_mapping_tl } + } + \bool_if:nF \l__mhchem_option_mathgreekSelectedByUser + { + \chemgreek_declare_mapping_alias:nn { mhchem-math } { \l_chemgreek_active_mapping_tl } + } + } + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% legacy %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -3153,4 +3357,3 @@ \DeclareRobustCommand\cf[2][]{\mhchem@cf[#1]{#2}} \DeclareRobustCommand\cee[1]{\mhchem@cee{#1}} } - -- cgit v1.2.3