%% mhchem.sty %% 2021-12-31 %% Copyright 2004-2021 Martin Hensel % %% This file is part of the mhchem bundle for LaTeX % % This work may be distributed and/or modified under the % conditions of the LaTeX Project Public License version 1.3c % which is included as lppl-1-3c.txt. % % This work has the LPPL maintenance status "maintained". % The Current Maintainer of this work is Martin Hensel. % % ( In order to fight spam, the maintainer's contact ) % ( information is "encrypted" with ROT13. ) % ( If you do not know ROT13 yet and have no tool for ) % ( decryption, simply do an Internet search for "ROT13". ) % % ,---[ ROT 13 ]--- % | Gur Pheerag Znvagnvare bs guvf jbex vf Znegva Urafry % | jub pna or pbagnpgrq ivn % | zupurz@ZnegvaUrafry.qr % | be ivn znvy % | Znegva Urafry % | Cbfgfge. 20 % | 09232 Unegznaafqbes % | Treznal % `---------- % % This work consists of all files listed in manifest.txt. % % \ProvidesPackage{mhchem}[2021/12/31 v4.09 for typesetting chemical formulae] \RequirePackage{expl3} \RequirePackage{l3keys2e} \RequirePackage{calc}[1998/07/07] \RequirePackage{amsmath} \RequirePackage{chemgreek}[2016/02/10] \RequirePackage{graphics} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% misc %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \DeclareMathSymbol{\mhchem@hyphen}{0}{operators}{45} \def\mhchem@macro{} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% global helpers %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \ExplSyntaxOn \cs_generate_variant:Nn \str_if_eq:nnTF { Vn } \cs_generate_variant:Nn \str_case:nnF { VnF } \cs_generate_variant:Nn \regex_match:NnTF { NV } \cs_generate_variant:Nn \regex_match:NnTF { No } \cs_new_protected:Npn \__mhchem_regex_peek_compile:Nn #1#2 { \regex_const:Nn #1 { \A the\ (character|letter)\ (#2) \Z } } \cs_new_protected:Npn \__mhchem_regex_peek:NTF #1#2#3 { \peek_catcode:NTF ## {#3} { \regex_match:NoTF #1 { \token_to_meaning:N \l_peek_token } {#2} {#3} } } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% RegExp helpers %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \regex_const:Nn \l__mhchem_regex_oneLowercaseLetter_regex { [a-z] } \regex_const:Nn \l__mhchem_regex_hyphen_regex { - } \regex_const:Nn \l__mhchem_regex_letters_regex { [a-zA-Z]+ } \regex_const:Nn \l__mhchem_regex_spaces_regex { [\ ]+ } \regex_const:Nn \l__mhchem_regex_digits_fregex { \A [0-9]+ \Z} \regex_const:Nn \l__mhchem_regex_stateOfAggregationAtEnd_fregex { \A (.+) (\([a-z]{1,3}\)) \Z } \regex_const:Nn \l__mhchem_regex_oneLowercaseLetter_fregex { \A [a-z] \Z } \regex_const:Nn \l__mhchem_regex_oneLowercaseLetterPlus_fregex { \A ( (\c{__mhchem_cg_withinMathTokens:n}\cB.)? ([a-z]|\c{alpha|beta|gamma|delta|epsilon|zeta|eta|theta|iota|kappa|lambda|mu|nu|xi|omicron|pi|rho|sigma|tau|upsilon|phi|chi|psi|omega}) (\cE.)? | \(?[0-9]+ | \(?[0-9]+\/[0-9]+ ) \Z } \regex_const:Nn \l__mhchem_regex_romanNumeral_fregex { \A [IVX]+ \Z } \regex_const:Nn \l__mhchem_regex_bracedGroup_fregex { \A \cB. [^\cE.]* \cE. \Z } \regex_const:Nn \l__mhchem_regex_oneGreekLetter_fregex { \A \c{alpha|beta|gamma|delta|epsilon|zeta|eta|theta|iota|kappa|lambda|mu|nu|xi|omicron|pi|rho|sigma|tau|upsilon|phi|chi|psi|omega|Alpha|Beta|Gamma|Delta|Epsilon|Zeta|Eta|Theta|Iota|Kappa|Lambda|Mu|Nu|Xi|Omicron|Pi|Rho|Sigma|Tau|Upsilon|Phi|Chi|Psi|Omega} \Z } \regex_const:Nn \l__mhchem_regex_digitOrLetterOrGreek_fregex { \A [1-9a-zA-Z\ \~\+\-\,\.\(\)\c{alpha|beta|gamma|delta|epsilon|zeta|eta|theta|iota|kappa|lambda|mu|nu|xi|omicron|pi|rho|sigma|tau|upsilon|phi|chi|psi|omega|Alpha|Beta|Gamma|Delta|Epsilon|Zeta|Eta|Theta|Iota|Kappa|Lambda|Mu|Nu|Xi|Omicron|Pi|Rho|Sigma|Tau|Upsilon|Phi|Chi|Psi|Omega}]+ \Z } \regex_const:Nn \l__mhchem_regex_nonFormula_fregex { \A \( [a-z]+ \) \Z } \regex_const:Nn \l__mhchem_regex_formula_fregex { \A ( [a-z] | ([0-9\ \+\-\,\.\(\)]+ [a-z])+ [0-9\ \+\-\,\.\(\)]* | ([a-z][0-9\ \+\-\,\.\(\)]+)+[a-z]? ) \Z } \regex_const:Nn \l__mhchem_regex_formulaAmount_fregex { \A \c{__mhchem_cg_withinMathTokens:n}\cB. (([0-9]*[a-z]? [\+\-])? [a-z] ([\+\-] [0-9]+[a-z]?)?) \cE. \Z } \regex_const:Nn \l__mhchem_regex_fraction_fregex { \A ([0-9]+)\/([0-9]+) \Z } \regex_const:Nn \l__mhchem_regex_fracMacro_fregex { \A \c{frac} \Z } \regex_const:Nn \l__mhchem_regex_ceOperator_fregex { \A ( \+ | - | = | \c{pm} | \$\c{pm}\$ | \(v\) | v | \(\^\) | \^ | \. | \* ) \Z } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_digit_pregex { [0-9] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_digitOrPlus_pregex { [0-9 \+] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_digitOrMinus_pregex { [0-9 \-] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_digitOrDot_pregex { [0-9 .] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_digitOrSlash_pregex { [0-9 \/] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_digitOrDotPlus_pregex { [0-9 \) \. \/] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_dotOrAsterisk_pregex { [\. \*] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_letter_pregex { [a-zA-Z] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_uppercaseLetterOrParenthesis_pregex { [ A-Z \( \[ ] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_openingBracket_pregex { [ \( \[ ] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_closingBracket_pregex { [ \) \] \/ ] } \__mhchem_regex_peek_compile:Nn \l__mhchem_regex_oneLowercaseLetter_pregex { [a-z] } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% loop helpers %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \cs_new_protected:Npn \__mhchem_loopHelper_appendNextToken:NNn #1#2#3 { \tl_put_right:Nn #1 {#3} #2 } \cs_new_protected:Npn \__mhchem_loopHelper_appendNextGroup:NNn #1#2#3 { \tl_put_right:Nn #1 { { #3 } } #2 } \cs_new_protected:Npn \__mhchem_loopHelper_appendNextGroupAsCe:NNn #1#2#3 { \tl_put_right:Nn #1 { { \ce{#3} } } #2 } \cs_new_protected:Npn \__mhchem_loopHelper_appendNextGroup_prefix_doIfEmpty:NnnNn #1#2#3#4#5 { \tl_if_empty:nTF {#5} { #3 } { \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 $ } #2 } \cs_new_protected:Npn \__mhchem_loopHelper_appendMathAAsGroup:NNw #1#2#3$ { \tl_put_right:Nn #1 { $ { #3 } $ } #2 } \cs_new_protected:Npn \__mhchem_loopHelper_appendWithinMathTokens:nn #1#2 { \peek_catcode:NTF \c_group_begin_token { \__mhchem_loopHelper_appendWithinMathTokens_aux_group:ccw {#1} {#2} } { \__mhchem_loopHelper_appendWithinMathTokens_aux:ccw {#1} {#2} } } \cs_new_protected:Npn \__mhchem_loopHelper_appendWithinMathTokens_aux:NNw #1#2#3$ { \tl_put_right:Nn #1 { \__mhchem_cg_withinMathTokens:n {#3} } #2 } \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} } } #2 } \cs_generate_variant:Nn \__mhchem_loopHelper_appendWithinMathTokens_aux_group:NNw {ccw} \cs_new_protected:Npn \__mhchem_loopHelper_ignoreNextToken:Nn #1#2 { #1 } \cs_new_protected:Npn \__mhchem_loopHelper_breakLoop:w #1#2\q_recursion_stop { #1 } \ExplSyntaxOff %%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% \ce %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% \/ %%% Prevent argument from expanding when written to .aux %%%%%%%%%% Solution by Heiko Oberdiek %%%%%%%%%% http://tex.stackexchange.com/questions/160306/prevent-caption-from-expanding-argument-too-early \newcommand*{\ce}{% \ifx\protect\@typeset@protect \csname ce \expandafter\endcsname \else \ifx\protect\@unexpandable@protect \protect@unexpand@cmd@arg\ce \else \ifx\protect\string \protect@string@cmd@arg\ce \else \expandafter\protect@unknown@cmd@arg \csname ce \endcsname \fi \fi \fi } \expandafter\newcommand\csname ce \endcsname[1]{% \mhchem@cee{#1}% } % unexpanded protect \def\protect@unexpand@cmd@arg#1\else#2\fi\fi\fi#3{% \fi\fi \ifx\thepage\relax \detokenize \else \unexpanded \fi {#1{#3}}% } % display protect \def\protect@string@cmd@arg#1\else#2\fi\fi\fi#3{% \fi\fi\fi \detokenize{#1{#3}}% } % unknown protect \def\protect@unknown@cmd@arg#1\fi\fi\fi{% \fi\fi\fi \protect#1% } %%%%%%%%%% %%% /\ %%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% \cesplit %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \ExplSyntaxOn \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__mhchem_cesplit_tmpa_tl { \__mhchem_ce:n {#2} } \tl_map_inline:nn {#1} { \bool_if:NTF \l__mhchem_cesplit_odd_bool { \tl_set:Nn \__mhchem_cesplit_key_tl {##1} \bool_set_false:N \l__mhchem_cesplit_odd_bool } % else { \regex_replace_all:VnN \__mhchem_cesplit_key_tl { \cE] ##1 \c{__mhchem_ce:n}\cB[ } \l__mhchem_cesplit_tmpa_tl \bool_set_true:N \l__mhchem_cesplit_odd_bool } } \tl_use:N \l__mhchem_cesplit_tmpa_tl } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% \cee %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \cs_new_protected:Npn \mhchem@cee #1 % \__mhchem_cee:n { \cesplit { { \c{\\}(\[.*?\])? } { \0 } { \& } { \0 } } {#1} } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% \__mhchem_ce:n %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \msg_new:nnn { mhchem } { ce / unexpected-state } { 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 \tl_new:N \l__mhchem_ce_arrowName_tl \tl_new:N \l__mhchem_ce_arrowTypeOne_tl \tl_new:N \l__mhchem_ce_arrowTextOne_tl \tl_new:N \l__mhchem_ce_arrowTypeTwo_tl \tl_new:N \l__mhchem_ce_arrowTextTwo_tl \cs_new_protected:Npn \__mhchem_ce:n #1 { \group_begin: \mhchem@hook@beforeCe \bool_if:NF \l__mhchem_ce_ceActive_bool { \bool_set_true:N \l__mhchem_ce_ceActive_bool \__mhchem_output_defMathOrText: \def\hyphen{\mhchem@hyphen}% \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 \cs_set_protected:Npn \alpha { \__mhchem_output_greek:n { alpha } } \cs_set_protected:Npn \beta { \__mhchem_output_greek:n { beta } } \cs_set_protected:Npn \gamma { \__mhchem_output_greek:n { gamma } } \cs_set_protected:Npn \delta { \__mhchem_output_greek:n { delta } } \cs_set_protected:Npn \epsilon { \__mhchem_output_greek:n { epsilon } } \cs_set_protected:Npn \zeta { \__mhchem_output_greek:n { zeta } } \cs_set_protected:Npn \eta { \__mhchem_output_greek:n { eta } } \cs_set_protected:Npn \theta { \__mhchem_output_greek:n { theta } } \cs_set_protected:Npn \iota { \__mhchem_output_greek:n { iota } } \cs_set_protected:Npn \kappa { \__mhchem_output_greek:n { kappa } } \cs_set_protected:Npn \lambda { \__mhchem_output_greek:n { lambda } } \cs_set_protected:Npn \mu { \__mhchem_output_greek:n { mu } } \cs_set_protected:Npn \nu { \__mhchem_output_greek:n { nu } } \cs_set_protected:Npn \xi { \__mhchem_output_greek:n { xi } } \cs_set_protected:Npn \omicron { \__mhchem_output_greek:n { omicron } } \cs_set_protected:Npn \pi { \__mhchem_output_greek:n { pi } } \cs_set_protected:Npn \rho { \__mhchem_output_greek:n { rho } } \cs_set_protected:Npn \sigma { \__mhchem_output_greek:n { sigma } } \cs_set_protected:Npn \tau { \__mhchem_output_greek:n { tau } } \cs_set_protected:Npn \upsilon { \__mhchem_output_greek:n { upsilon } } \cs_set_protected:Npn \phi { \__mhchem_output_greek:n { phi } } \cs_set_protected:Npn \chi { \__mhchem_output_greek:n { chi } } \cs_set_protected:Npn \psi { \__mhchem_output_greek:n { psi } } \cs_set_protected:Npn \omega { \__mhchem_output_greek:n { omega } } \cs_set_protected:Npn \Alpha { \__mhchem_output_greek:n { Alpha } } \cs_set_protected:Npn \Beta { \__mhchem_output_greek:n { Beta } } \cs_set_protected:Npn \Gamma { \__mhchem_output_greek:n { Gamma } } \cs_set_protected:Npn \Delta { \__mhchem_output_greek:n { Delta } } \cs_set_protected:Npn \Epsilon { \__mhchem_output_greek:n { Epsilon } } \cs_set_protected:Npn \Zeta { \__mhchem_output_greek:n { Zeta } } \cs_set_protected:Npn \Eta { \__mhchem_output_greek:n { Eta } } \cs_set_protected:Npn \Theta { \__mhchem_output_greek:n { Theta } } \cs_set_protected:Npn \Iota { \__mhchem_output_greek:n { Iota } } \cs_set_protected:Npn \Kappa { \__mhchem_output_greek:n { Kappa } } \cs_set_protected:Npn \Lambda { \__mhchem_output_greek:n { Lambda } } \cs_set_protected:Npn \Mu { \__mhchem_output_greek:n { Mu } } \cs_set_protected:Npn \Nu { \__mhchem_output_greek:n { Nu } } \cs_set_protected:Npn \Xi { \__mhchem_output_greek:n { Xi } } \cs_set_protected:Npn \Omicron { \__mhchem_output_greek:n { Omicron } } \cs_set_protected:Npn \Pi { \__mhchem_output_greek:n { Pi } } \cs_set_protected:Npn \Rho { \__mhchem_output_greek:n { Rho } } \cs_set_protected:Npn \Sigma { \__mhchem_output_greek:n { Sigma } } \cs_set_protected:Npn \Tau { \__mhchem_output_greek:n { Tau } } \cs_set_protected:Npn \Upsilon { \__mhchem_output_greek:n { Upsilon } } \cs_set_protected:Npn \Phi { \__mhchem_output_greek:n { Phi } } \cs_set_protected:Npn \Chi { \__mhchem_output_greek:n { Chi } } \cs_set_protected:Npn \Psi { \__mhchem_output_greek:n { Psi } } \cs_set_protected:Npn \Omega { \__mhchem_output_greek:n { Omega } } } \tl_clear:N \l__mhchem_ce_result_tl \tl_clear:N \l__mhchem_ce_part_tl \tl_set:Nn \l__mhchem_ce_state_tl { c } \int_set:Nn \l__mhchem_ce_distanceFromLastComma_int { 9 } \tl_clear:N \l__mhchem_cf_lastNonIsotopeElement_tl \__mhchem_ce_loop: #1 \q_recursion_stop \__mhchem_output_begin_ce: \int_compare:nTF { \l__mhchem_option_version_int > 1 } { \tl_use:N \l__mhchem_ce_result_tl } { \ensuremath{\tl_use:N \l__mhchem_ce_result_tl} } \__mhchem_output_end_ce: \mhchem@hook@afterCe \group_end: } \cs_new_protected:Npn \__mhchem_ce_loop: { \int_incr:N \l__mhchem_ce_distanceFromLastComma_int \str_case:VnF \l__mhchem_ce_state_tl { { c } { \str_case:VnF \l__mhchem_ce_part_tl { { + } { \__mhchem_ce_output:nn { 0 } { 0 } } { \pm } { \__mhchem_ce_output:nn { 0 } { 0 } } { -> } { \tl_set:Nn \l__mhchem_ce_arrowName_tl { yields } \__mhchem_ce_loop_startArrow: } { <- } { \tl_set:Nn \l__mhchem_ce_arrowName_tl { yieldsLeft } \__mhchem_ce_loop_startArrow: } { <--> } { \tl_set:Nn \l__mhchem_ce_arrowName_tl { yieldsLeftRight } \__mhchem_ce_loop_startArrow: } { <-> } { \tl_set:Nn \l__mhchem_ce_arrowName_tl { mesomerism } \__mhchem_ce_loop_startArrow: } { <=> } { \tl_set:Nn \l__mhchem_ce_arrowName_tl { equilibrium } \__mhchem_ce_loop_startArrow: } { <<=> } { \tl_set:Nn \l__mhchem_ce_arrowName_tl { equilibriumLeft } \__mhchem_ce_loop_startArrow: } { <=>> } { \tl_set:Nn \l__mhchem_ce_arrowName_tl { equilibriumRight } \__mhchem_ce_loop_startArrow: } } {} } } {} \peek_meaning_remove:NTF \q_recursion_stop { \__mhchem_ce_output:nn { 1 } { 0 } }{ \str_case:VnF \l__mhchem_ce_state_tl { { 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 } { \__mhchem_ce_output:nn { 1 } { 0 } } { \__mhchem_ce_output:nn { 1 } { 1 } } \__mhchem_ce_loop: }{ \peek_charcode:NTF , { \int_set:Nn \l__mhchem_ce_distanceFromLastComma_int { 0 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_part_tl \__mhchem_ce_loop: } % else { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_part_tl \__mhchem_ce_loop: } }}} } { a-t1 } { \peek_charcode_remove:NTF \c_space_token { \__mhchem_ce_output:nn { 0 } { 0 } \__mhchem_ce_loop: }{ \peek_charcode:NTF T { \tl_set:Nn \l__mhchem_ce_state_tl { a-[1 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_arrowTypeOne_tl \__mhchem_ce_loop: }{ \peek_charcode:NTF M { \tl_set:Nn \l__mhchem_ce_state_tl { a-[1 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_arrowTypeOne_tl \__mhchem_ce_loop: }{ \peek_charcode:NTF C { \tl_set:Nn \l__mhchem_ce_state_tl { a-[1 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_arrowTypeOne_tl \__mhchem_ce_loop: }{ \peek_charcode:NTF [ { \tl_set:Nn \l__mhchem_ce_state_tl { a-]1 } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: } % else { \str_case:VnF \l__mhchem_ce_arrowName_tl { { yieldsLeft } { \peek_charcode:NTF - { \tl_set:Nn \l__mhchem_ce_state_tl { c } \tl_set:Nn \l__mhchem_ce_part_tl { <- } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_part_tl \__mhchem_ce_loop: }{ \peek_charcode:NTF > { \tl_set:Nn \l__mhchem_ce_state_tl { c } \tl_set:Nn \l__mhchem_ce_part_tl { <- } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_part_tl \__mhchem_ce_loop: } % else { \__mhchem_ce_output:nn { 0 } { 0 } \tl_set:Nn \l__mhchem_ce_state_tl { a-end } \__mhchem_ce_loop: } } } { equilibrium } { \peek_charcode:NTF > { \tl_set:Nn \l__mhchem_ce_state_tl { c } \tl_set:Nn \l__mhchem_ce_part_tl { <=> } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_part_tl \__mhchem_ce_loop: } % else { \__mhchem_ce_output:nn { 0 } { 0 } \tl_set:Nn \l__mhchem_ce_state_tl { a-end } \__mhchem_ce_loop: } } } % else { \__mhchem_ce_output:nn { 0 } { 0 } \tl_set:Nn \l__mhchem_ce_state_tl { a-end } \__mhchem_ce_loop: } } }}}} } { a-[1 } { \peek_charcode:NTF [ { \tl_set:Nn \l__mhchem_ce_state_tl { a-]1 } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: } % else { \__mhchem_ce_output:nn { 0 } { 0 } \tl_set:Nn \l__mhchem_ce_state_tl { a-end } \__mhchem_ce_loop: } } { a-]1 } { \peek_catcode:NTF \c_group_begin_token { \__mhchem_loopHelper_appendNextGroup:NNn \l__mhchem_ce_arrowTextOne_tl \__mhchem_ce_loop: }{ \peek_catcode_remove:NTF \c_math_toggle_token { \__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 { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_arrowTextOne_tl \__mhchem_ce_loop: } }}} } { a-t2 } { \peek_charcode_remove:NTF \c_space_token { \__mhchem_ce_output:nn { 0 } { 0 } \__mhchem_ce_loop: }{ \peek_charcode:NTF T { \tl_set:Nn \l__mhchem_ce_state_tl { a-[2 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_arrowTypeTwo_tl \__mhchem_ce_loop: }{ \peek_charcode:NTF M { \tl_set:Nn \l__mhchem_ce_state_tl { a-[2 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_arrowTypeTwo_tl \__mhchem_ce_loop: }{ \peek_charcode:NTF C { \tl_set:Nn \l__mhchem_ce_state_tl { a-[2 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_arrowTypeTwo_tl \__mhchem_ce_loop: }{ \peek_charcode:NTF [ { \tl_set:Nn \l__mhchem_ce_state_tl { a-]2 } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: } % else { \__mhchem_ce_output:nn { 0 } { 0 } \tl_set:Nn \l__mhchem_ce_state_tl { a-end } \__mhchem_ce_loop: } }}}} } { a-[2 } { \peek_charcode:NTF [ { \tl_set:Nn \l__mhchem_ce_state_tl { a-]2 } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: } % else { \__mhchem_ce_output:nn { 0 } { 0 } \tl_set:Nn \l__mhchem_ce_state_tl { a-end } \__mhchem_ce_loop: } } { a-]2 } { \peek_catcode:NTF \c_group_begin_token { \__mhchem_loopHelper_appendNextGroup:NNn \l__mhchem_ce_arrowTextTwo_tl \__mhchem_ce_loop: }{ \peek_catcode_remove:NTF \c_math_toggle_token { \__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:nn { 0 } { 0 } \tl_set:Nn \l__mhchem_ce_state_tl { a-end } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_ce_loop: } % else { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_arrowTextTwo_tl \__mhchem_ce_loop: } }}} } { a-end } { \tl_set:Nn \l__mhchem_ce_state_tl { c } \peek_charcode_remove:NTF \c_space_token { \__mhchem_ce_loop: } % else { \__mhchem_ce_loop: } } } { \msg_error:nnx { mhchem } { ce / unexpected-state } { \l__mhchem_ce_state_tl } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_ce_result_tl \__mhchem_ce_loop: } } } \tl_new:N \l__mhchem_ce_output_cache_part_tl \tl_new:N \l__mhchem_ce_output_cache_state_tl \cs_new_protected:Npn \__mhchem_ce_output:nn #1#2 % #1 0/1 can be connected with previous to a cf phrase, #2 0/1 can be connected with following to a cf phrase { \regex_match:NVTF \l__mhchem_regex_ceOperator_fregex \l__mhchem_ce_part_tl { \__mhchem_ce_output_cache: \tl_set:NV \l__mhchem_ce_output_cache_state_tl \l__mhchem_ce_state_tl \tl_set:NV \l__mhchem_ce_output_cache_part_tl \l__mhchem_ce_part_tl \__mhchem_ce_output_cache: } { \bool_if:nTF { \str_if_eq_p:nn { #1 } { 0 } || ( ! \tl_if_empty_p:N \l__mhchem_ce_output_cache_state_tl && ! \str_if_eq_p:VV \l__mhchem_ce_output_cache_state_tl \l__mhchem_ce_state_tl ) } { \__mhchem_ce_output_cache: \tl_set:NV \l__mhchem_ce_output_cache_state_tl \l__mhchem_ce_state_tl \tl_set:NV \l__mhchem_ce_output_cache_part_tl \l__mhchem_ce_part_tl \str_if_eq:nnT { #2 } { 0 } { \__mhchem_ce_output_cache: } } { \tl_if_empty:NF \l__mhchem_ce_output_cache_part_tl { \tl_if_empty:NF \l__mhchem_ce_part_tl { \tl_put_right:Nn \l__mhchem_ce_output_cache_part_tl { ~ } } } \tl_put_right:NV \l__mhchem_ce_output_cache_part_tl \l__mhchem_ce_part_tl \tl_set:NV \l__mhchem_ce_output_cache_state_tl \l__mhchem_ce_state_tl \str_if_eq:nnT { #2 } { 0 } { \__mhchem_ce_output_cache: } } } \tl_clear:N \l__mhchem_ce_part_tl \tl_set:Nn \l__mhchem_ce_state_tl { c } } \cs_new_protected:Npn \__mhchem_ce_output_cache: { \str_case:VnF \l__mhchem_ce_output_cache_state_tl { { c } { \str_case:VnF \l__mhchem_ce_output_cache_part_tl { { + } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_operatorPlus: } } { - } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_operatorMinus: } } { = } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_operatorEquals: } } { \pm } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_operatorPlusMinus: } } { $\pm$ } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_operatorPlusMinus: } } { (v) } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}\mathop{\downarrow}{}} } } { v } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}\mathop{\downarrow}{}} } } { (^) } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}\mathop{\uparrow}{}} } } { ^ } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \ensuremath{{}\mathop{\uparrow}{}} } } { . } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_additionCompound: } } { * } { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_output_additionCompound: } } { } { } } % else { \int_compare:nTF { \l__mhchem_option_version_int > 3 } { \regex_match:NVTF \l__mhchem_regex_stateOfAggregationAtEnd_fregex \l__mhchem_ce_output_cache_part_tl { \regex_replace_once:NnN \l__mhchem_regex_stateOfAggregationAtEnd_fregex { \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_output_cache_part_tl \tl_put_right:Nx \l__mhchem_ce_result_tl { \exp_not:V \l__mhchem_ce_output_cache_part_tl } } { \tl_put_right:Nx \l__mhchem_ce_result_tl { \exp_not:N \__mhchem_cf:nn {} { \exp_not:V \l__mhchem_ce_output_cache_part_tl } } } } { \tl_put_right:Nx \l__mhchem_ce_result_tl { \exp_not:N \__mhchem_cf:nn {} { \exp_not:V \l__mhchem_ce_output_cache_part_tl } } } } } { a-t1 } { \__mhchem_ce_outputArrow:ooooo { \l__mhchem_ce_arrowName_tl } {} {} {} {} } { a-[1 } { \__mhchem_ce_outputArrow:ooooo { \l__mhchem_ce_arrowName_tl } {} {} {} {} \tl_set:NV \l__mhchem_ce_output_cache_part_tl \l__mhchem_ce_arrowTypeOne_tl \tl_set:Nn \l__mhchem_ce_output_cache_state_tl { c } \__mhchem_ce_output_cache: } { a-]1 } { \__mhchem_ce_outputArrow:ooooo { \l__mhchem_ce_arrowName_tl } { \l__mhchem_ce_arrowTypeOne_tl } { \l__mhchem_ce_arrowTextOne_tl } {} {} } { a-t2 } { \__mhchem_ce_outputArrow:ooooo { \l__mhchem_ce_arrowName_tl } { \l__mhchem_ce_arrowTypeOne_tl } { \l__mhchem_ce_arrowTextOne_tl } {} {} } { a-[2 } { \__mhchem_ce_outputArrow:ooooo { \l__mhchem_ce_arrowName_tl } { \l__mhchem_ce_arrowTypeOne_tl } { \l__mhchem_ce_arrowTextOne_tl } {} {} \tl_set:NV \l__mhchem_ce_output_cache_part_tl \l__mhchem_ce_arrowTypeTwo_tl \tl_set:Nn \l__mhchem_ce_output_cache_state_tl { c } \__mhchem_ce_output_cache: } { a-]2 } { \__mhchem_ce_outputArrow:ooooo { \l__mhchem_ce_arrowName_tl } { \l__mhchem_ce_arrowTypeOne_tl } { \l__mhchem_ce_arrowTextOne_tl } { \l__mhchem_ce_arrowTypeTwo_tl } { \l__mhchem_ce_arrowTextTwo_tl } } } {} \tl_clear:N \l__mhchem_ce_output_cache_state_tl \tl_clear:N \l__mhchem_ce_output_cache_part_tl } \cs_new_protected:Npn \__mhchem_ce_outputArrow:nnnnn #1#2#3#4#5 { \tl_put_right:Nn \l__mhchem_ce_result_tl { \__mhchem_arrow_deploy:nnnnn {#1} {#2} {#3} {#4} {#5} } \tl_clear:N \l__mhchem_ce_part_tl \tl_set:Nn \l__mhchem_ce_state_tl { c } } \cs_generate_variant:Nn \__mhchem_ce_outputArrow:nnnnn {ooooo} \cs_new_protected:Npn \__mhchem_ce_loop_startArrow: { \tl_set:Nn \l__mhchem_ce_state_tl { a-t1 } \tl_clear:N \l__mhchem_ce_arrowTypeOne_tl \tl_clear:N \l__mhchem_ce_arrowTextOne_tl \tl_clear:N \l__mhchem_ce_arrowTypeTwo_tl \tl_clear:N \l__mhchem_ce_arrowTextTwo_tl \tl_clear:N \l__mhchem_ce_part_tl } \cs_new_protected:Npn \__mhchem_ce_loop_abortArrow: { \tl_put_right:Nx \l__mhchem_ce_part_tl { \tl_set:Nn \l__mhchem_ce_state_tl { a-t1 } \exp_not:V \l__mhchem_ce_arrowTypeOne_tl \exp_not:V \l__mhchem_ce_arrowTextOne_tl \exp_not:V \l__mhchem_ce_arrowTypeTwo_tl \exp_not:V \l__mhchem_ce_arrowTextTwo_tl } \tl_set:Nn \l__mhchem_ce_state_tl { c } } \ExplSyntaxOff %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% arrows %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \ExplSyntaxOn \cs_new:Npn \__mhchem_arrow_options_minLength:n { {2em} } \tl_new:N \mhchem@option@arrow@pgf@tip \tl_new:N \mhchem@option@arrow@pgf@linewidth \msg_new:nnn { mhchem } { error-arrow-type } { Cannot~understand~arrow~type~'#1'. } \msg_new:nnn { mhchem } { unexpected-arrow-type } { Assertion~failed:~Unexpected~arrow~type~'#1'.~ You~found~a~bug.~Please~contact~the~package~author. } \msg_new:nnn { mhchem } { unexpected-arrow-name } { Assertion~failed:~Unexpected~arrow~name~'#1'.~ You~found~a~bug.~Please~contact~the~package~author. } \msg_new:nnn { mhchem } { unexpected-arrow-label-type } { Assertion~failed:~Unexpected~arrow~label~type~'#1'.~ You~found~a~bug.~Please~contact~the~package~author. } \cs_new_protected:Npn \__mhchem_arrow_init_pgf: #1 { \bool_if:NTF { \l__mhchem_option_inPreamble_bool } { \RequirePackage{pgf} \RequirePackage{tikz} \AtBeginDocument { \usetikzlibrary{arrows.meta} \__mhchem_arrow_init_pgf_ii: {#1} } } { \__mhchem_arrow_init_pgf_ii: {#1} } } \tl_new:N \l__mhchem_arrow_init_pgf_tl \cs_new_protected:Npn \__mhchem_arrow_init_pgf_ii: #1 { \tl_set:Nn \l__mhchem_option_arrowType_tl { pgf } \str_case:nnF {#1} { { pgf } { \tikzset{mhchemtip /.tip = {Computer~Modern~Rightarrow[length=0pt~5,width'=0pt~1.8]}} \tl_set:Nn \mhchem@option@arrow@pgf@linewidth { 0.09ex } } { pgf-filled } { \tikzset{mhchemtip /.tip = {Stealth[round,length=0pt~10,width'=0pt~0.65]}} \tl_set:Nn \mhchem@option@arrow@pgf@linewidth { 0.09ex } } } { \regex_extract_once:nnNTF { \A pgf \cB. (.+?) \cE. \cB. (.+?) \cE. \Z } {#1} \l__mhchem_tmp_arrow_seq { \seq_pop_left:NN \l__mhchem_tmp_arrow_seq \l__mhchem_option_tmpa_tl \seq_pop_left:NN \l__mhchem_tmp_arrow_seq \l__mhchem_option_tmpa_tl \tl_set:Nx \l__mhchem_arrow_init_pgf_tl { mhchemtip /.tip = {\l__mhchem_option_tmpa_tl} } \exp_after:wN \tikzset \exp_after:wN { \l__mhchem_arrow_init_pgf_tl } \seq_pop_left:NN \l__mhchem_tmp_arrow_seq \l__mhchem_option_tmpa_tl \tl_set_eq:NN \mhchem@option@arrow@pgf@linewidth \l__mhchem_option_tmpa_tl } { { \msg_error:nnn { mhchem } { error-arrow-type } {#1} } } } } \tl_new:N \l__mhchem_arrow_deploy_a_tl \tl_new:N \l__mhchem_arrow_deploy_b_tl \cs_new_protected:Npn \__mhchem_arrow_deploy:nnnnn #1#2#3#4#5 { \str_case:nnF {#2} { { } { \int_compare:nTF { \l__mhchem_option_version_int > 3 } { \tl_if_empty:nTF {#3} { \tl_clear:N \l__mhchem_arrow_deploy_a_tl } { \tl_set:Nn \l__mhchem_arrow_deploy_a_tl { \ce {#3} } } \tl_if_empty:nTF {#5} { \tl_clear:N \l__mhchem_arrow_deploy_b_tl } { \tl_set:Nn \l__mhchem_arrow_deploy_b_tl { \ce {#5} } } \__mhchem_arrow_output:nVV {#1} \l__mhchem_arrow_deploy_a_tl \l__mhchem_arrow_deploy_b_tl } { \__mhchem_arrow_output:nnn {#1} {#3} {#5} } } { M } { \__mhchem_arrow_output:nnn {#1} {#3} {#5} } { T } { \tl_if_empty:nTF {#3} { \tl_clear:N \l__mhchem_arrow_deploy_a_tl } { \tl_set:Nn \l__mhchem_arrow_deploy_a_tl { \__mhchem_output_escapeFromMathToText:n {#3} } } \tl_if_empty:nTF {#5} { \tl_clear:N \l__mhchem_arrow_deploy_b_tl } { \tl_set:Nn \l__mhchem_arrow_deploy_b_tl { \__mhchem_output_escapeFromMathToText:n {#5} } } \__mhchem_arrow_output:nVV {#1} \l__mhchem_arrow_deploy_a_tl \l__mhchem_arrow_deploy_b_tl } { C } { \tl_if_empty:nTF {#3} { \tl_clear:N \l__mhchem_arrow_deploy_a_tl } { \tl_set:Nn \l__mhchem_arrow_deploy_a_tl { \ce {#3} } } \tl_if_empty:nTF {#5} { \tl_clear:N \l__mhchem_arrow_deploy_b_tl } { \tl_set:Nn \l__mhchem_arrow_deploy_b_tl { \ce {#5} } } \__mhchem_arrow_output:nVV {#1} \l__mhchem_arrow_deploy_a_tl \l__mhchem_arrow_deploy_b_tl } } { \msg_error:nnn { mhchem } { unexpected-arrow-label-type } {#2} } } \cs_new_protected:Npn \__mhchem_arrow_output:nnn #1#2#3 { \str_case:VnF \l__mhchem_option_arrowType_tl { { font } { \cs_set_protected:Npn \__mhchem_arrow_base: { \__mhchem_arrow_ext:nnnnnnnn } \cs_set_protected:Npn \__mhchem_arrow_rightArrowFill: { \rightarrowfill@ } \cs_set_protected:Npn \__mhchem_arrow_leftArrowFill: { \leftarrowfill@ } \cs_set_protected:Npn \__mhchem_arrow_leftRightArrowFill: { \leftrightarrowfill@ } \cs_set_protected:Npn \__mhchem_arrow_rightHarpoonUpFill: { \__mhchem_arrow_rightharpoonupfill } \cs_set_protected:Npn \__mhchem_arrow_leftHarpoonDownFill: { \__mhchem_arrow_leftharpoondownfill } } { pgf } { \cs_set_protected:Npn \__mhchem_arrow_base: { \__mhchem_arrow_extPgf:nnnnnnnn } \cs_set_protected:Npn \__mhchem_arrow_rightArrowFill: { \mhchem@arrow@right@pgf } \cs_set_protected:Npn \__mhchem_arrow_leftArrowFill: { \mhchem@arrow@left@pgf } \cs_set_protected:Npn \__mhchem_arrow_leftRightArrowFill: { \mhchem@arrow@leftright@pgf } \cs_set_protected:Npn \__mhchem_arrow_rightHarpoonUpFill: { \mhchem@arrow@rightharpoonup@pgf } \cs_set_protected:Npn \__mhchem_arrow_leftHarpoonDownFill: { \mhchem@arrow@leftharpoondown@pgf } } } { \msg_error:nnx { mhchem } { unexpected-arrow-type } { \l__mhchem_option_arrowType_tl } } \str_case:nnF {#1} { { yields } { \ensuremath{{}\__mhchem_arrow_base:{5}{9}{#2}{5}{9}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightArrowFill:}{}} } { yieldsLeft } { \ensuremath{{}\__mhchem_arrow_base:{9}{5}{#2}{9}{5}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftArrowFill:}{}} } { yieldsLeftRight } { \ensuremath{{}\mathrel{ \@ifempty{#3} {\rlap{\raisebox{.44ex}{$\__mhchem_arrow_base:{9}{9}{#2}{9}{9}{}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightArrowFill:}$}}} {\rlap{\raisebox{.44ex}{$\__mhchem_arrow_base:{9}{9}{#2}{9}{9}{\hphantom{#3}}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightArrowFill:}$}}} \@ifempty{#2} {\raisebox{-.44ex}{$\__mhchem_arrow_base:{9}{9}{}{9}{9}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftArrowFill:}$}} {\raisebox{-.44ex}{$\__mhchem_arrow_base:{9}{9}{\hphantom{#2}}{9}{9}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftArrowFill:}$}} }{}} } { mesomerism } { \ensuremath{{}\__mhchem_arrow_base:{9}{9}{#2}{9}{9}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftRightArrowFill:}{}} } { equilibrium } { \ensuremath{{}\mathrel{ \@ifempty{#3} {\rlap{\raisebox{.22ex}{$\__mhchem_arrow_base:{5}{9}{#2}{9}{9}{}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightHarpoonUpFill:}$}}} {\rlap{\raisebox{.22ex}{$\__mhchem_arrow_base:{9}{9}{#2}{9}{5}{\hphantom{#3}}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightHarpoonUpFill:}$}}} \@ifempty{#2} {\raisebox{-.22ex}{$\__mhchem_arrow_base:{9}{9}{}{9}{5}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftHarpoonDownFill:}$}} {\raisebox{-.22ex}{$\__mhchem_arrow_base:{5}{9}{\hphantom{#2}}{9}{9}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftHarpoonDownFill:}$}} }{}} } { equilibriumRight } { \ensuremath{{}\mathrel{ \@ifempty{#2}{ \rlap{\raisebox{-.22ex}{$\kern0.5em\__mhchem_arrow_base:{0}{0}{}{9}{5}{#3}{\__mhchem_arrow_options_minLength:n-1em}{\__mhchem_arrow_leftHarpoonDownFill:}$}} \@ifempty{#3} {\raisebox{.22ex}{$\__mhchem_arrow_base:{0}{0}{}{0}{0}{}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightHarpoonUpFill:}$}} {\raisebox{.22ex}{$\__mhchem_arrow_base:{0}{0}{}{9}{5}{\hphantom{#3}\kern1em}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightHarpoonUpFill:}$}} }{ \rlap{\raisebox{-.22ex}{$\kern0.5em\__mhchem_arrow_base:{5}{9}{\hphantom{#2}\kern-1em}{9}{9}{#3}{\__mhchem_arrow_options_minLength:n-1em}{\__mhchem_arrow_leftHarpoonDownFill:}$}} \@ifempty{#3} {\raisebox{.22ex}{$\__mhchem_arrow_base:{5}{9}{#2}{0}{0}{}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightHarpoonUpFill:}$}} {\raisebox{.22ex}{$\__mhchem_arrow_base:{9}{9}{#2}{9}{9}{\hphantom{#3}\kern1em}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_rightHarpoonUpFill:}$}} } }{}} } { equilibriumLeft } { \ensuremath{{}\mathrel{ \@ifempty{#3}{ \rlap{\raisebox{.22ex}{$\kern0.5em\__mhchem_arrow_base:{5}{9}{#2}{0}{0}{}{\__mhchem_arrow_options_minLength:n-1em}{\__mhchem_arrow_rightHarpoonUpFill:}$}} \@ifempty{#2} {\raisebox{-.22ex}{$\__mhchem_arrow_base:{0}{0}{}{0}{0}{}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftHarpoonDownFill:}$}} {\raisebox{-.22ex}{$\__mhchem_arrow_base:{5}{9}{\hphantom{#2}\kern1em}{0}{0}{}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftHarpoonDownFill:}$}} }{ \rlap{\raisebox{.22ex}{$\kern0.5em\__mhchem_arrow_base:{9}{9}{#2}{5}{9}{\hphantom{#3}\kern-1em}{\__mhchem_arrow_options_minLength:n-1em}{\__mhchem_arrow_rightHarpoonUpFill:}$}} \@ifempty{#2} {\raisebox{-.22ex}{$\__mhchem_arrow_base:{0}{0}{}{9}{5}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftHarpoonDownFill:}$}} {\raisebox{-.22ex}{$\__mhchem_arrow_base:{9}{9}{\hphantom{#2}\kern1em}{9}{9}{#3}{\__mhchem_arrow_options_minLength:n}{\__mhchem_arrow_leftHarpoonDownFill:}$}} } }{}} } } { \msg_error:nnn { mhchem } { unexpected-arrow-name } {#1} } } \cs_generate_variant:Nn \__mhchem_arrow_output:nnn {nVV} %%% Font arrows \cs_new_protected:Npn \__mhchem_arrow_ext:nnnnnnnn #1#2#3#4#5#6#7#8 % adaption of amsmath's ext@arrow { \mathrel{ \mathop{\makebox[#7]{#8\displaystyle}} \limits \@ifnotempty{#3}{^{\mkern#1mu#3\mkern#2mu}} \@ifnotempty{#6} { \c_math_subscript_token{\makebox{ \raisebox{1.25ex-\heightof{$\scriptstyle\mkern#4mu#6\mkern#5mu$}}[0pt] {$\scriptstyle\mkern#4mu#6\mkern#5mu$} }} } } } \cs_new_protected:Npn \__mhchem_arrow_rightharpoonupfill { \arrowfill@\relbar\relbar\rightharpoonup } \cs_new_protected:Npn \__mhchem_arrow_leftharpoondownfill { \arrowfill@\leftharpoondown\relbar\relbar } %%% pgf arrows \skip_new:N \__mhchem_arrow_extPgfLength_skip \cs_new_protected:Npn \__mhchem_arrow_extPgf:nnnnnnnn #1#2#3#4#5#6#7#8 { \setlength \__mhchem_arrow_extPgfLength_skip { \widthof{\ensuremath{ \__mhchem_arrow_ext:nnnnnnnn{#1}{#2}{#3}{#4}{#5}{#6}{#7}{\rightarrowfill@} }} } \mathrel{ \mathop{\kern0.7pt#8{\__mhchem_arrow_extPgfLength_skip-1.8pt}\kern0.7pt} \limits \@ifnotempty{#3}{^{\mkern#1mu#3\mkern#2mu}} \@ifnotempty{#6}{\c_math_subscript_token{\mkern#4mu#6\mkern#5mu}} } } \ExplSyntaxOff \newcommand*\mhchem@arrow@right@pgf[1]{% \begin{tikzpicture}[baseline]% \draw[use as bounding box] (0,0) (#1,0.85ex); \draw[arrows={-mhchemtip}, shorten <=0.5*\mhchem@option@arrow@pgf@linewidth, cap=round, line width=\mhchem@option@arrow@pgf@linewidth] (0cm,0.575ex) -- ++(#1,0cm); \end{tikzpicture}% }% \newcommand*\mhchem@arrow@left@pgf[1]{% \begin{tikzpicture}[baseline]% \draw[use as bounding box] (0,0) (#1,0.85ex); \draw[arrows={mhchemtip-}, shorten >=0.5*\mhchem@option@arrow@pgf@linewidth, cap=round, line width=\mhchem@option@arrow@pgf@linewidth] (0cm,0.575ex) -- ++(#1,0cm); \end{tikzpicture}% }% \newcommand*\mhchem@arrow@leftright@pgf[1]{% \begin{tikzpicture}[baseline]% \draw[use as bounding box] (0,0) (#1,0.85ex); \draw[arrows={mhchemtip-mhchemtip}, cap=round, line width=\mhchem@option@arrow@pgf@linewidth] (0cm,0.575ex) -- ++(#1,0cm); \end{tikzpicture}% }% \newcommand*\mhchem@arrow@rightharpoonup@pgf[1]{% \begin{tikzpicture}[baseline]% \draw[use as bounding box] (0,0) (#1,0.85ex); \draw[arrows={-mhchemtip[harpoon]}, shorten <=0.5*\mhchem@option@arrow@pgf@linewidth, cap=round, line width=\mhchem@option@arrow@pgf@linewidth, ] (0cm,0.575ex) -- ++(#1,0cm); \end{tikzpicture}% }% \newcommand*\mhchem@arrow@leftharpoondown@pgf[1]{% \begin{tikzpicture}[baseline]% \draw[use as bounding box] (0,0) (#1,0.85ex); \draw[arrows={mhchemtip[harpoon]-}, shorten >=0.5*\mhchem@option@arrow@pgf@linewidth, cap=round, line width=\mhchem@option@arrow@pgf@linewidth, ] (0cm,0.575ex) -- ++(#1,0cm); \end{tikzpicture}% }% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% loop helpers %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \ExplSyntaxOn \msg_new:nnn { mhchem } { cf / unexpected-input } { Assertion~failed:~Unexpected~input~character.~ In~case~you~think~this~is~a~bug,~ please~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. } \msg_new:nnn { mhchem } { cf / unexpected-two-superscripts } { Assertion~failed:~Two~superscripts.~You~entered~an~invalid~formula.~ Or~you~found~a~bug,~in~which~case~you~should~contact~the~package~author. } \cs_new_protected:Npn \__mhchem_loopHelper_outputAndReset_appendNextTokenToResult_setState:nNn #1#2#3 { \__mhchem_cf_outputAndReset: \tl_put_right:Nn \l__mhchem_cf_element_tl { \__mhchem_output_withFont:n {#3} } \__mhchem_cf_outputRawElementAndReset: \tl_set:Nn \l__mhchem_cf_state_tl {#1} #2 } \cs_new_protected:Npn \__mhchem_loopHelper_outputAndReset_appendToResult_setState_useNone:nnNn #1#2#3#4 { \__mhchem_cf_outputAndReset: \tl_put_right:Nn \l__mhchem_cf_element_tl {#1} \__mhchem_cf_outputRawElementAndReset: \tl_set:Nn \l__mhchem_cf_state_tl {#2} #3 } \cs_new_protected:Npn \__mhchem_loopHelper_outputAndReset_append_appendNextGroupToResult:nNnn #1#2#3 { \__mhchem_cf_outputAndReset: \tl_put_right:Nn \l__mhchem_cf_element_tl {#1} \tl_put_right:Nn \l__mhchem_cf_element_tl {{#3}} \__mhchem_cf_outputRawElementAndReset: #2 } %%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% \cf %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%% \newcommand*\mhchem@cf[2][]{ \__mhchem_cf:nn {#1} {#2} } \bool_new:N \l__mhchem_cf_startedWithBond_bool \tl_new:N \l__mhchem_cf_state_tl \tl_new:N \l__mhchem_cf_presup_tl \tl_new:N \l__mhchem_cf_presub_tl \tl_new:N \l__mhchem_cf_presupState_tl \tl_new:N \l__mhchem_cf_presubState_tl \tl_new:N \l__mhchem_cf_element_tl \tl_new:N \l__mhchem_cf_sub_tl \tl_new:N \l__mhchem_cf_sup_tl \tl_new:N \l__mhchem_cf_supState_tl \tl_new:N \l__mhchem_cf_subState_tl \tl_new:N \l__mhchem_cf_lastNonIsotopeElement_tl \bool_new:N \g__mhchem_cf_lastElementWithScript_bool \cs_new_protected:Npn \__mhchem_cf_resetOutput: { \tl_clear:N \l__mhchem_cf_presup_tl \tl_clear:N \l__mhchem_cf_presub_tl \tl_set:Nn \l__mhchem_cf_presupState_tl { - } \tl_set:Nn \l__mhchem_cf_presubState_tl { - } \tl_clear:N \l__mhchem_cf_element_tl \tl_clear:N \l__mhchem_cf_sub_tl \tl_clear:N \l__mhchem_cf_sup_tl \tl_set:Nn \l__mhchem_cf_supState_tl { - } \tl_set:Nn \l__mhchem_cf_subState_tl { - } } \bool_new:N \l__mhchem_cf_cfActive_bool \bool_set_false:N \l__mhchem_cf_cfActive_bool \tl_new:N \l__mhchem_cf_result_tl \cs_new_protected:Npn \__mhchem_cf:nn #1#2 { \group_begin: \bool_if:NF \l__mhchem_cf_cfActive_bool { \bool_set_true:N \l__mhchem_cf_cfActive_bool \bool_if:NF \l__mhchem_ce_ceActive_bool { \__mhchem_output_defMathOrText: } \int_compare:nTF { \l__mhchem_option_version_int < 3 } { \cs_set_eq:NN \bond \__mhchem_output_bond_single: } { \cs_set_protected:Npn \bond { \mhchem@bond } } \int_compare:nT { \l__mhchem_option_version_int < 4 } { \cs_set_protected:Npn \sbond { \__mhchem_output_bond_single: } \cs_set_protected:Npn \dbond { \__mhchem_output_bond_double: } \cs_set_protected:Npn \tbond { \__mhchem_output_bond_triple: } } \cs_set_protected:Npn \hyphen {\mhchem@hyphen} } \tl_set:Nn \l__mhchem_cf_state_tl { s } \bool_set_false:N \l__mhchem_cf_startedWithBond_bool \__mhchem_cf_resetOutput: \tl_clear:N \l__mhchem_cf_result_tl \__mhchem_cf_loop: #2 \q_recursion_stop \__mhchem_output_begin_cf: \tl_if_empty:nTF {#1} { \ensuremath{\tl_use:N \l__mhchem_cf_result_tl} } { \ensuremath{\overset{#1}{\tl_use:N \l__mhchem_cf_result_tl}} } \__mhchem_output_end_cf: \group_end: } \tl_new:N \l__mhchem_cf_loop_tmpa_l \tl_new:N \l__mhchem_cf_loop_tmpb_l \tl_new:N \l__mhchem_cf_loop_tmpc_l \tl_new:N \l__mhchem_cf_loop_tmpd_l \cs_new_protected:Npn \__mhchem_cf_loop: { \peek_meaning_remove:NTF \q_recursion_stop { \str_case:VnF \l__mhchem_cf_state_tl { { - } { \bool_if:NTF \l__mhchem_cf_startedWithBond_bool { \__mhchem_cf_outputRaw:n { \__mhchem_output_bond_single: } } { \tl_put_right:Nn \l__mhchem_cf_sup_tl { - } } } { 1 } { \tl_set:Nn \l__mhchem_cf_state_tl {9} } { frac2 } { \__mhchem_cf_outputRawElementAndReset: } } {} \__mhchem_cf_outputAndReset: }{ \peek_charcode_remove:NTF \c_space_token { \str_case:VnF \l__mhchem_cf_state_tl { { - } { \bool_if:NTF \l__mhchem_cf_startedWithBond_bool { \__mhchem_cf_outputRaw:n { \__mhchem_output_bond_single: } } { \tl_put_right:Nn \l__mhchem_cf_sup_tl { - } } } { 1 } { \tl_set:Nn \l__mhchem_cf_state_tl {9} } { frac2 } { \__mhchem_cf_outputRawElementAndReset: } { a } { \bool_if:nT { \tl_if_empty_p:N \l__mhchem_cf_presup_tl && \tl_if_empty_p:N \l__mhchem_cf_presub_tl && \tl_if_empty_p:N \l__mhchem_cf_sub_tl && \tl_if_empty_p:N \l__mhchem_cf_sup_tl } { \regex_replace_once:NnNTF \l__mhchem_regex_oneLowercaseLetter_fregex { \c{__mhchem_output_withFont:n}\cB[ \c{__mhchem_cg_itshape:n}\cB[ \0 \cE]\cE] } \l__mhchem_cf_element_tl {} {} } } } {} \__mhchem_cf_outputAndReset: \int_compare:nT { \l__mhchem_option_version_int > 3 } { \__mhchem_cf_outputRaw:n { \__mhchem_output_skipAfterAmount: } } \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_cf_loop: }{ \peek_meaning:NTF \relax { \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: }{ \peek_meaning:NTF \protect { \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: }{ \str_case:VnF \l__mhchem_cf_state_tl { { - } { \__mhchem_cf_outputAndReset: \int_compare:nTF { \l__mhchem_option_version_int > 3 } { \regex_match:NVTF \l__mhchem_regex_oneLowercaseLetterPlus_fregex \l__mhchem_cf_lastNonIsotopeElement_tl { \__mhchem_cf_outputRaw:n { \__mhchem_cg_escapeFromMathToTextOrFaketext:n { - } } } { \__mhchem_cf_outputRaw:n { \__mhchem_output_bond_single: } } } { \__mhchem_cf_outputRaw:n { \__mhchem_output_bond_single: } } \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_cf_loop: } { ( } { \__mhchem_regex_peek:NTF \l__mhchem_regex_digit_pregex { \tl_set:Nn \l__mhchem_cf_state_tl { 1 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: } % else { \__mhchem_cf_outputAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_cf_loop: } } { ps } { \__mhchem_regex_peek:NTF \l__mhchem_regex_uppercaseLetterOrParenthesis_pregex { \regex_match:NVTF \l__mhchem_regex_formulaAmount_fregex \l__mhchem_cf_element_tl { \__mhchem_cf_outputAndReset: \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_doIfEmpty: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: \int_compare:nTF { \l__mhchem_option_version_int > 1 } { \tl_set:Nn \l__mhchem_cf_state_tl { - } \bool_set_true:N \l__mhchem_cf_startedWithBond_bool \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { a } \tl_put_right:Nn \l__mhchem_cf_sup_tl { - } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } }{ \peek_charcode:NTF = { \__mhchem_cf_outputAndReset: \__mhchem_loopHelper_outputAndReset_appendToResult_setState_useNone:nnNn { \__mhchem_output_bond_double: } { s } \__mhchem_cf_loop: }{ \peek_charcode:NTF ## { \__mhchem_cf_outputAndReset: \__mhchem_loopHelper_outputAndReset_appendToResult_setState_useNone:nnNn { \__mhchem_output_bond_triple: } { s } \__mhchem_cf_loop: }{ \peek_charcode:NTF ^ { \str_if_eq:VnF \l__mhchem_cf_presupState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_presupState_tl { d } \tl_set:Nn \l__mhchem_cf_state_tl { p } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: }{ \peek_charcode:NTF _ { \str_if_eq:VnF \l__mhchem_cf_presubState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_presubState_tl { d } \tl_set:Nn \l__mhchem_cf_state_tl { q } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: }{ \peek_charcode:NTF ` { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { \str_if_eq:VnF \l__mhchem_cf_presupState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_presupState_tl { rm } \tl_set:Nn \l__mhchem_cf_state_tl { p } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: } }{ \peek_charcode:NTF , { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { \str_if_eq:VnF \l__mhchem_cf_presubState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_presubState_tl { rm } \tl_set:Nn \l__mhchem_cf_state_tl { q } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } % else { \__mhchem_cf_outputAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { 1 } \__mhchem_cf_loop: } }{ \peek_charcode:NTF * { \__mhchem_loopHelper_outputAndReset_appendToResult_setState_useNone:nnNn { \__mhchem_output_additionCompound: } { s } \__mhchem_cf_loop: }{ \peek_charcode:NTF + { \str_if_eq:VnF \l__mhchem_cf_presupState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_presupState_tl { d } \tl_set:Nn \l__mhchem_cf_state_tl { p } \__mhchem_cf_loop: }{ \peek_charcode:NTF ( { \__mhchem_cf_outputAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { ( } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: }{ \peek_charcode:NTF [ { \__mhchem_loopHelper_outputAndReset_appendNextTokenToResult_setState:nNn { s } \__mhchem_cf_loop: }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_closingBracket_pregex { \__mhchem_loopHelper_outputAndReset_appendNextTokenToResult_setState:nNn { a } \__mhchem_cf_loop: }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_letter_pregex { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_digitOrDot_pregex { \__mhchem_cf_outputAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { 1 } \__mhchem_cf_loop: }{ \peek_charcode:NTF | { \__mhchem_loopHelper_outputAndReset_appendToResult_setState_useNone:nnNn { \__mhchem_output_verticalBar: } { s } \__mhchem_cf_loop: } % else { \__mhchem_loopHelper_breakLoop:w { \msg_error:nnn { mhchem } { cf / unexpected-input } } } }}}}}}}}}}}}}}}}} } { c } { \regex_match:NVTF \l__mhchem_regex_oneGreekLetter_fregex \l__mhchem_cf_element_tl { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_cf_loop: }{ \regex_match:NVTF \l__mhchem_regex_fracMacro_fregex \l__mhchem_cf_element_tl { \tl_set:Nn \l__mhchem_cf_state_tl { frac1 } \__mhchem_loopHelper_appendNextGroupAsCe:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: }{ \peek_catcode:NTF \c_group_begin_token { \__mhchem_loopHelper_appendNextGroup:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: } % else { \__mhchem_cf_outputRawElementAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_cf_loop: } }} } { frac1 } { \tl_set:Nn \l__mhchem_cf_state_tl { frac2 } \__mhchem_loopHelper_appendNextGroupAsCe:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: } { frac2 } { \__mhchem_cf_outputRawElementAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_cf_loop: } { 1 } { \__mhchem_regex_peek:NTF \l__mhchem_regex_digitOrDotPlus_pregex { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: }{ \peek_charcode:NTF , { \tl_put_right:Nn \l__mhchem_cf_element_tl { \__mhchem_output_commaDecimal: } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: }{ \peek_charcode:NTF - { \tl_set:Nn \l__mhchem_cf_state_tl { 9 } \__mhchem_cf_outputAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { - } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } % else { \__mhchem_cf_outputAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_cf_loop: } }} } { 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_doIfEmpty: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 { - } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: }{ \peek_charcode:NTF = { \__mhchem_loopHelper_outputAndReset_appendToResult_setState_useNone:nnNn { \__mhchem_output_bond_double: } { s } \__mhchem_cf_loop: }{ \peek_charcode:NTF ## { \__mhchem_loopHelper_outputAndReset_appendToResult_setState_useNone:nnNn { \__mhchem_output_bond_triple: } { s } \__mhchem_cf_loop: }{ \peek_charcode:NTF ^ { \str_if_eq:VnF \l__mhchem_cf_supState_tl { - } { \__mhchem_cf_outputAndReset: } \str_if_eq:VnTF \l__mhchem_cf_subState_tl { - } { \tl_set:Nn \l__mhchem_cf_supState_tl { kv } } { \tl_set:Nn \l__mhchem_cf_supState_tl { d } } \tl_set:Nn \l__mhchem_cf_state_tl { e } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: }{ \peek_charcode:NTF _ { \str_if_eq:VnF \l__mhchem_cf_subState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_subState_tl { d } \tl_set:Nn \l__mhchem_cf_state_tl { f } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: }{ \peek_charcode:NTF ` { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { \str_if_eq:VnF \l__mhchem_cf_supState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_supState_tl { rm } \tl_set:Nn \l__mhchem_cf_state_tl { e } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } % else { \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_appendNextToken:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: } }{ \peek_charcode:NTF , { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { \str_if_eq:VnF \l__mhchem_cf_subState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_subState_tl { rm } \tl_set:Nn \l__mhchem_cf_state_tl { f } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } % else { \__mhchem_cf_outputRaw:n { \__mhchem_output_commaEnumeration: } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_dotOrAsterisk_pregex { \__mhchem_loopHelper_outputAndReset_appendToResult_setState_useNone:nnNn { \__mhchem_output_additionCompound: } { s } \__mhchem_cf_loop: }{ \peek_charcode:NTF + { \tl_set:Nn \l__mhchem_cf_supState_tl { d } \tl_set:Nn \l__mhchem_cf_state_tl { e } \__mhchem_cf_loop: }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_openingBracket_pregex { \__mhchem_loopHelper_outputAndReset_appendNextTokenToResult_setState:nNn { s } \__mhchem_cf_loop: }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_closingBracket_pregex { \__mhchem_loopHelper_outputAndReset_appendNextTokenToResult_setState:nNn { a } \__mhchem_cf_loop: }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_letter_pregex { \str_if_eq:VnTF \l__mhchem_cf_supState_tl { - } { \str_if_eq:VnF \l__mhchem_cf_subState_tl { - } { \__mhchem_cf_outputAndReset: } } { \regex_match:NVTF \l__mhchem_regex_digits_fregex \l__mhchem_cf_sup_tl { \tl_set:NV \l__mhchem_cf_loop_tmpa_l \l__mhchem_cf_sup_tl \tl_set:NV \l__mhchem_cf_loop_tmpb_l \l__mhchem_cf_supState_tl \tl_set:NV \l__mhchem_cf_loop_tmpc_l \l__mhchem_cf_sub_tl \tl_set:NV \l__mhchem_cf_loop_tmpd_l \l__mhchem_cf_subState_tl \tl_clear:N \l__mhchem_cf_sup_tl \tl_set:Nn \l__mhchem_cf_supState_tl { - } \tl_clear:N \l__mhchem_cf_sub_tl \tl_set:Nn \l__mhchem_cf_subState_tl { - } \__mhchem_cf_outputAndReset: \tl_set:NV \l__mhchem_cf_presup_tl \l__mhchem_cf_loop_tmpa_l \tl_set:NV \l__mhchem_cf_presupState_tl \l__mhchem_cf_loop_tmpb_l \tl_set:NV \l__mhchem_cf_presub_tl \l__mhchem_cf_loop_tmpc_l \tl_set:NV \l__mhchem_cf_presubState_tl \l__mhchem_cf_loop_tmpd_l } { \__mhchem_cf_outputAndReset: } } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_element_tl \__mhchem_cf_loop: }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_digit_pregex { \str_if_eq:VnF \l__mhchem_cf_subState_tl { - } { \__mhchem_cf_outputAndReset: } \tl_set:Nn \l__mhchem_cf_subState_tl { d } \tl_set:Nn \l__mhchem_cf_state_tl { f } \__mhchem_cf_loop: } % else { \__mhchem_cf_outputAndReset: \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_cf_loop: } }}}}}}}}}}}}}}} } { 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 \l__mhchem_regex_digit_pregex { \tl_set:Nn \l__mhchem_cf_state_tl { e+ } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sup_tl \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sup_tl \__mhchem_cf_loop: } } } { e+ } { \__mhchem_regex_peek:NTF \l__mhchem_regex_digitOrPlus_pregex { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sup_tl \__mhchem_cf_loop: }{ \peek_charcode:NTF - { \regex_match:NVTF \l__mhchem_regex_oneLowercaseLetterPlus_fregex \l__mhchem_cf_element_tl { \tl_set:Nn \l__mhchem_cf_state_tl { - } \__mhchem_loopHelper_ignoreNextToken:Nn \__mhchem_cf_loop: } { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sup_tl \__mhchem_cf_loop: } } % else { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_cf_loop: } } } { f } { \peek_catcode_remove:NTF \c_math_toggle_token { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_loopHelper_appendWithinMathTokens:nn { l__mhchem_cf_sub_tl } { __mhchem_cf_loop: } }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_digitOrSlash_pregex { \tl_set:Nn \l__mhchem_cf_state_tl { f+ } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sub_tl \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sub_tl \__mhchem_cf_loop: } } } { f+ } { \__mhchem_regex_peek:NTF \l__mhchem_regex_digitOrSlash_pregex { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_sub_tl \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { a } \__mhchem_cf_loop: } } { 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 \l__mhchem_regex_digitOrMinus_pregex { \tl_set:Nn \l__mhchem_cf_state_tl { p+ } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_presup_tl \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_presup_tl \__mhchem_cf_loop: } } } { p+ } { \__mhchem_regex_peek:NTF \l__mhchem_regex_digit_pregex { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_presup_tl \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_cf_loop: } } { 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 \l__mhchem_regex_digitOrMinus_pregex { \tl_set:Nn \l__mhchem_cf_state_tl { q+ } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_presub_tl \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_presub_tl \__mhchem_cf_loop: } } } { q+ } { \__mhchem_regex_peek:NTF \l__mhchem_regex_digit_pregex { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_presub_tl \__mhchem_cf_loop: } % else { \tl_set:Nn \l__mhchem_cf_state_tl { s } \__mhchem_cf_loop: } } } { \msg_error:nnx { mhchem } { cf / unexpected-state } { \l__mhchem_cf_state_tl } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cf_result_tl \__mhchem_cf_loop: } }}}} } \cs_new_protected:Npn \__mhchem_cf_output: { \bool_if:nTF { \tl_if_empty_p:N \l__mhchem_cf_presup_tl && \tl_if_empty_p:N \l__mhchem_cf_presub_tl && \tl_if_empty_p:N \l__mhchem_cf_element_tl && \tl_if_empty_p:N \l__mhchem_cf_sub_tl && \tl_if_empty_p:N \l__mhchem_cf_sup_tl } { } { \bool_if:nT { \tl_if_empty_p:N \l__mhchem_cf_presup_tl && \tl_if_empty_p:N \l__mhchem_cf_presub_tl } { \tl_set:NV \l__mhchem_cf_lastNonIsotopeElement_tl \l__mhchem_cf_element_tl } { \tl_clear:N \l__mhchem_cf_lastNonIsotopeElement_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:VnF \l__mhchem_cf_state_tl { { 1 } { \__mhchem_cg_replaceForAmount:N \l__mhchem_cf_element_tl \tl_put_right:Nx \l__mhchem_cf_result_tl { \exp_not:N \__mhchem_output_amount:n { \exp_not:V \l__mhchem_cf_element_tl } } } { 9 } { \__mhchem_cg_replaceForAmount:N \l__mhchem_cf_element_tl \tl_put_right:Nx \l__mhchem_cf_result_tl { \exp_not:N \__mhchem_output_withFont:n { \exp_not:V \l__mhchem_cf_element_tl } } } } { \str_if_eq:VnTF \l__mhchem_cf_presupState_tl { rm } { \tl_set:Nx \l__mhchem_cf_presup_tl { \exp_not:N \__mhchem_output_escapeToRomanMath:n { \exp_not:V \l__mhchem_cf_presup_tl } } } { \__mhchem_cg_replaceForSuperscript:N \l__mhchem_cf_presup_tl } \str_if_eq:VnTF \l__mhchem_cf_presubState_tl { rm } { \tl_set:Nx \l__mhchem_cf_presub_tl { \exp_not:N \__mhchem_output_escapeToRomanMath:n { \exp_not:V \l__mhchem_cf_presub_tl } } } { \__mhchem_cg_replaceForSubscript:N \l__mhchem_cf_presub_tl } \__mhchem_cg_replaceForElement:N \l__mhchem_cf_element_tl \str_if_eq:VnTF \l__mhchem_cf_subState_tl { rm } { \tl_set:Nx \l__mhchem_cf_sub_tl { \exp_not:N \__mhchem_output_escapeToRomanMath:n { \exp_not:V \l__mhchem_cf_sub_tl } } } { \__mhchem_cg_replaceForSubscript:N \l__mhchem_cf_sub_tl } \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 } \str_if_eq:VnT \l__mhchem_cf_supState_tl { kv } { \regex_match:NVTF \l__mhchem_regex_romanNumeral_fregex \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 } && \tl_if_empty_p:V \l__mhchem_cf_sub_tl } { \tl_set:Nn \l__mhchem_cf_supState_tl { d } } \str_case:VnF \l__mhchem_cf_supState_tl { { kv } { \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 } {} } } { 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 } {} } } } { \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_sub_tl } { \exp_not:V \l__mhchem_cf_sup_tl } } } } } } \cs_new_protected:Npn \__mhchem_cf_outputRawElement: { \tl_set:NV \l__mhchem_cf_lastNonIsotopeElement_tl \l__mhchem_cf_element_tl \tl_put_right:Nx \l__mhchem_cf_result_tl { \exp_not:V \l__mhchem_cf_element_tl } } \cs_new_protected:Npn \__mhchem_cf_outputAndReset: { \__mhchem_cf_output: \__mhchem_cf_resetOutput: } \cs_new_protected:Npn \__mhchem_cf_outputRawElementAndReset: { \__mhchem_cf_outputRawElement: \__mhchem_cf_resetOutput: } \cs_new_protected:Npn \__mhchem_cf_outputRaw:n #1 { \__mhchem_cf_outputAndReset: \tl_put_right:Nn \l__mhchem_cf_element_tl {#1} \__mhchem_cf_outputRawElementAndReset: } %%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% cg %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%% \tl_new:N \l__mhchem_cg_withinMathTokens_tmpa_tl \bool_new:N \l__mhchem_cg_withinMathTokens_bool \bool_set_false:N \l__mhchem_cg_withinMathTokens_bool \cs_new_protected:Npn \__mhchem_cg_withinMathTokens:n #1 { \group_begin: \bool_set_true:N \l__mhchem_cg_withinMathTokens_bool \int_compare:nTF { \l__mhchem_option_version_int > 3 } { \regex_match:NnTF \l__mhchem_regex_bracedGroup_fregex {#1} { \__mhchem_output_escapeToItalicMath:n {#1} } % else { \regex_match:NnTF \l__mhchem_regex_digitOrLetterOrGreek_fregex {#1} { \group_begin: \bool_if:NTF \l__mhchem_output_isMathMode_bool { \text { \ensuremath { \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 \l__mhchem_regex_letters_regex { \c{__mhchem_output_escapeFromTextToItalicText:n} \cB[ \0 \cE] } \l__mhchem_cg_withinMathTokens_tmpa_tl \regex_replace_all:NnN \l__mhchem_regex_spaces_regex {} \l__mhchem_cg_withinMathTokens_tmpa_tl \regex_replace_all:NnN \l__mhchem_regex_hyphen_regex { \c{mhchem@option@textminus} } \l__mhchem_cg_withinMathTokens_tmpa_tl \tl_use:N \l__mhchem_cg_withinMathTokens_tmpa_tl } \group_end: } { \__mhchem_output_escapeToItalicMath:n {#1} } } } % else { \__mhchem_output_escapeFromMathToItalicMath:n {#1} } \group_end: } \cs_new_protected:Npn \__mhchem_cg_itshape:n #1 { \int_compare:nTF { \l__mhchem_option_version_int > 3 } { \bool_if:NTF \l__mhchem_output_isMathMode_bool { \__mhchem_output_escapeFromMathToItalicMath:n {#1} } { \__mhchem_output_escapeFromTextToItalicText:n {#1} } } { #1 } } \cs_new_protected:Npn \__mhchem_cg_escapeFromMathToTextOrFaketext:n #1 { \bool_if:NTF \l__mhchem_output_isMathMode_bool { \__mhchem_cg_escapeFromMathToFakeText:n {#1} } { \__mhchem_output_escapeFromMathToText:n { #1 } } } \tl_new:N \l__mhchem_cg_escapeFromMathToFakeText_result_tl \cs_new_protected:Npn \__mhchem_cg_escapeFromMathToFakeText:n #1 { \tl_clear:N \l__mhchem_cg_escapeFromMathToFakeText_result_tl \__mhchem_cg_escapeFromMathToFakeText_loop: #1 \q_recursion_stop \__mhchem_output_escapeFromMathToRomanMath:n { \tl_use:N \l__mhchem_cg_escapeFromMathToFakeText_result_tl } } \cs_new_protected:Npn \__mhchem_cg_escapeFromMathToFakeText_loop: { \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 \l__mhchem_cg_escapeFromMathToFakeText_result_tl { \mkern6mu } \__mhchem_cg_escapeFromMathToFakeText_loop: }{ \peek_charcode_remove:NTF - { \tl_put_right:Nn \l__mhchem_cg_escapeFromMathToFakeText_result_tl { \mhchem@hyphen } \__mhchem_cg_escapeFromMathToFakeText_loop: } % else { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cg_escapeFromMathToFakeText_result_tl \__mhchem_cg_escapeFromMathToFakeText_loop: } }}}} } \cs_new_protected:Npn \__mhchem_cg_replaceForAmount:N #1 { \regex_replace_once:NnN \l__mhchem_regex_fraction_fregex { \c{__mhchem_cg_frac:nn} \cB[\1\cE] \cB[\2\cE] } #1 } \cs_new_protected:Npn \__mhchem_cg_frac:nn #1#2 { \ensuremath{\frac { \__mhchem_output_withFont:n {#1} } { \__mhchem_output_withFont:n {#2} } } } \cs_new_protected:Npn \__mhchem_cg_replaceForElement:N #1 {} \tl_new:N \l__mhchem_cg_replaceForSubscript_result_tl \tl_new:N \l__mhchem_cg_replaceForSubscript_state_tl \cs_new_protected:Npn \__mhchem_cg_replaceForSubscript:N #1 { \int_compare:nTF { \l__mhchem_option_version_int > 3} { \regex_match:NVTF \l__mhchem_regex_nonFormula_fregex #1 { \tl_clear:N \l__mhchem_cg_replaceForSubscript_result_tl \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } \exp_after:wN \__mhchem_cg_replaceForSubscript_loop: #1 \q_recursion_stop \tl_set:NV #1 \l__mhchem_cg_replaceForSubscript_result_tl } { \regex_match:NVTF \l__mhchem_regex_formula_fregex #1 { \regex_replace_all:NnN \l__mhchem_regex_oneLowercaseLetter_regex { \c{__mhchem_cg_itshape:n}\cB[ \0 \cE] } #1 \regex_replace_all:NnN \l__mhchem_regex_hyphen_regex { \c{__mhchem_output_minus:} } #1 } { \tl_clear:N \l__mhchem_cg_replaceForSubscript_result_tl \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } \exp_after:wN \__mhchem_cg_replaceForSubscript_loop: #1 \q_recursion_stop \tl_set:NV #1 \l__mhchem_cg_replaceForSubscript_result_tl } } } % else { \tl_clear:N \l__mhchem_cg_replaceForSubscript_result_tl \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } \exp_after:wN \__mhchem_cg_replaceForSubscript_loop: #1 \q_recursion_stop \tl_set:NV #1 \l__mhchem_cg_replaceForSubscript_result_tl } } \cs_new_protected:Npn \__mhchem_cg_replaceForSubscript_loop: { \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 \l__mhchem_regex_digit_pregex { \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { 9 } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cg_replaceForSubscript_result_tl \__mhchem_cg_replaceForSubscript_loop: }{ \peek_charcode_remove:NTF - { \int_compare:nTF { \l__mhchem_option_version_int > 3 } { \tl_put_right:Nn \l__mhchem_cg_replaceForSubscript_result_tl { \__mhchem_output_minus: } } { \tl_put_right:Nn \l__mhchem_cg_replaceForSubscript_result_tl { - } } \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } \__mhchem_cg_replaceForSubscript_loop: }{ \peek_charcode_remove:NTF , { \str_if_eq:VnTF \l__mhchem_cg_replaceForSubscript_state_tl { 9 } { \tl_put_right:Nn \l__mhchem_cg_replaceForSubscript_result_tl { \__mhchem_output_commaAutoSmall: } } { \tl_put_right:Nn \l__mhchem_cg_replaceForSubscript_result_tl { \__mhchem_output_commaEnumerationSmall: } } \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } \__mhchem_cg_replaceForSubscript_loop: } % else { \tl_set:Nn \l__mhchem_cg_replaceForSubscript_state_tl { s } \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cg_replaceForSubscript_result_tl \__mhchem_cg_replaceForSubscript_loop: } }}}}} } \tl_new:N \l__mhchem_cg_replaceForSuperscript_result_tl \tl_new:N \l__mhchem_cg_replaceForSuperscript_state_tl \bool_new:N \l__mhchem_cg_replaceForSuperscript_isFormula_bool \cs_new_protected:Npn \__mhchem_cg_replaceForSuperscript:N #1 { \regex_match:NVTF \l__mhchem_regex_formula_fregex #1 { \bool_set_true:N \l__mhchem_cg_replaceForSuperscript_isFormula_bool } { \bool_set_false:N \l__mhchem_cg_replaceForSuperscript_isFormula_bool } \tl_clear:N \l__mhchem_cg_replaceForSuperscript_result_tl \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } \exp_after:wN \__mhchem_cg_replaceForSuperscript_loop: #1 \q_recursion_stop \tl_set:NV #1 \l__mhchem_cg_replaceForSuperscript_result_tl } \cs_new_protected:Npn \__mhchem_cg_replaceForSuperscript_loop: { \peek_meaning:NTF \q_recursion_stop { \str_if_eq:VnT \l__mhchem_cg_replaceForSuperscript_state_tl { 9. } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_electronDot: } } \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. } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_electronDot: } } \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_minus: } \__mhchem_cg_replaceForSuperscript_loop: }{ \peek_charcode_remove:NTF . { \str_case:VnF \l__mhchem_cg_replaceForSuperscript_state_tl { { 9. } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_electronDot: \__mhchem_output_electronDot: } \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } } { 9 } { \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { 9. } } } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_electronDot: } } \__mhchem_cg_replaceForSuperscript_loop: }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_oneLowercaseLetter_pregex { \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 } \bool_if:NTF \l__mhchem_cg_replaceForSuperscript_isFormula_bool { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_cg_itshape:n } \__mhchem_loopHelper_appendNextGroup:NNn \l__mhchem_cg_replaceForSuperscript_result_tl \__mhchem_cg_replaceForSuperscript_loop: } { \__mhchem_loopHelper_appendNextToken:NNn \l__mhchem_cg_replaceForSuperscript_result_tl \__mhchem_cg_replaceForSuperscript_loop: } }{ \__mhchem_regex_peek:NTF \l__mhchem_regex_digit_pregex { \str_if_eq:VnT \l__mhchem_cg_replaceForSuperscript_state_tl { 9. } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { . } } \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { 9 } \__mhchem_loopHelper_appendNextToken: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. } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_electronDot: } } \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_excited: } \__mhchem_cg_replaceForSuperscript_loop: }{ \peek_charcode_remove:NTF , { \str_case:VnF \l__mhchem_cg_replaceForSuperscript_state_tl { { 9. } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_electronDot: } } { 9 } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_commaAutoSmall: } } } { \tl_put_right:Nn \l__mhchem_cg_replaceForSuperscript_result_tl { \__mhchem_output_commaEnumerationSmall: } } \tl_set:Nn \l__mhchem_cg_replaceForSuperscript_state_tl { s } \__mhchem_cg_replaceForSuperscript_loop: } % else { \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_appendNextToken:NNn \l__mhchem_cg_replaceForSuperscript_result_tl \__mhchem_cg_replaceForSuperscript_loop: } }}}}}}}} } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% output %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \bool_new:N \l__mhchem_output_isMathMode_bool \cs_new_protected:Npn \__mhchem_output_defMathOrText: { \bool_if:nTF { \mode_if_math_p: || ( \l__mhchem_ce_ceActive_bool && \int_compare_p:n { \l__mhchem_option_version_int < 2 } ) } { \bool_set_true:N \l__mhchem_output_isMathMode_bool } { \bool_set_false:N \l__mhchem_output_isMathMode_bool \mhchem@option@textFont } } \cs_new_protected:Npn \__mhchem_output_begin_ce: {} % \cs_new_protected:Npn \__mhchem_output_end_ce: {} \cs_new_protected:Npn \__mhchem_output_begin_cf: {} \cs_new_protected:Npn \__mhchem_output_end_cf: {} \cs_new_protected:Npn \__mhchem_output_amount:n #1 { \__mhchem_output_withFont:n {#1} \__mhchem_output_skipAfterAmount: } \cs_new_protected:Npn \__mhchem_output_coreFive:nnnnnnn #1#2#3#4#5#6#7 { \group_begin: \bool_if:nT { \tl_if_empty_p:n {#7} && ! \tl_if_empty_p:n {#5} } { \bool_set_true:N \l__mhchem_option_superscriptsStacked_bool } \m@th \ensuremath { \tl_if_empty:nF {#1#2} { \hphantom { {}^{\__mhchem_output_withFont:n{#1}}\c_math_subscript_token{\__mhchem_output_withFont:n{#2}} } { \vphantom { \__mhchem_output_withFont:n { X } } } ^ { \__mhchem_output_coreFive_llap:n { \vphantom { \smash[t] { \__mhchem_output_scriptWithFont:n { 2 } } } \__mhchem_output_scriptWithFont:n {#1} } } \tl_if_empty:nF {#2} { \c_math_subscript_token { \__mhchem_output_coreFive_llap:n { \vphantom { \__mhchem_output_scriptWithFont:n { 2 } } \smash[t] { \__mhchem_output_scriptWithFont:n {#2} } } } } \mhchem@minispace } \__mhchem_output_withFont:n {#3} \tl_if_empty:nF {#4#5#6#7} { \bool_if:NTF \l__mhchem_option_superscriptsStacked_bool { { \vphantom { \__mhchem_output_withFont:n { X } } } \tl_if_empty:nF {#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 } } } \__mhchem_output_scriptWithFont:n {#4#5#7} } } % else { \bool_if:NTF \l__mhchem_option_subscriptsDeep_bool { \tl_if_empty:nF {#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 } } } } \tl_if_empty:nF {#5#6#7} { { \vphantom { \__mhchem_output_withFont:n { X } } } \tl_if_empty:nF {#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} } } } { \tl_if_empty:nF {#4} { { \vphantom { \__mhchem_output_withFont:n { X } } } ^ { \__mhchem_output_scriptWithFont:n {#4} } } \tl_if_empty:nF {#6} { { \vphantom { \__mhchem_output_withFont:n { X } } } \c_math_subscript_token { \smash[t] { \__mhchem_output_scriptWithFont:n {#6} } } } \tl_if_empty:nF {#5#7} { { \vphantom { \__mhchem_output_withFont:n { X } } } ^ { \__mhchem_output_scriptWithFont:n {#5#7} } } } } } } \group_end: } \cs_new_protected:Npn \__mhchem_output_coreFive_llap:n #1 { \mathchoice {\llap{\ensuremath{\displaystyle#1}}} {\llap{\ensuremath{\textstyle#1}}} {\llap{\ensuremath{\scriptstyle#1}}} {\llap{\ensuremath{\scriptscriptstyle#1}}} } %%% @minispace \newlength\mhchem@minispace@tmp \newcommand*\mhchem@minispace{% \setlength{\mhchem@minispace@tmp}{0pt-\widthof{${}^8\c_math_subscript_token8$}+% \widthof{$\text{C}^8\c_math_subscript_token8$}-\widthof{$\text{C}^{}\c_math_subscript_token{}$}}% \kern\mhchem@minispace@tmp% } %%% @minibackspace \newlength\mhchem@minibackspace@tmp \newcommand*\mhchem@minibackspace{% \setlength{\mhchem@minibackspace@tmp}{0pt-\widthof{${}\c_math_subscript_token{2}{}\c_math_subscript_token{2}$}+\widthof{${}\c_math_subscript_token{22}$}}% \kern\mhchem@minibackspace@tmp% } \cs_new_protected:Npn \__mhchem_output_withFont:n #1 { \bool_if:NTF \l__mhchem_output_isMathMode_bool { \__mhchem_output_escapeFromMathToRomanMath:n {#1} } { \__mhchem_output_escapeFromMathToText:n {#1} } } \cs_new_protected:Npn \__mhchem_output_scriptWithFont:n #1 { \int_compare:nT { \l__mhchem_option_version_int > 3 } { \thinmuskip=0mu \medmuskip=0mu \thickmuskip=0mu } \bool_if:NTF \l__mhchem_output_isMathMode_bool { \int_compare:nTF { \l__mhchem_option_version_int < 2 } {#1} { \__mhchem_output_escapeFromMathToRomanMath:n {#1} } } { \__mhchem_output_escapeFromMathToText:n {#1} } } \cs_new_protected:Npn \__mhchem_output_escapeFromMathToText:n #1 { \text { \mhchem@hook@beforeText #1 } } \cs_new_protected:Npn \__mhchem_output_escapeToRomanMath:n #1 { \bool_if:NTF \l__mhchem_output_isMathMode_bool { \__mhchem_output_escapeFromMathToRomanMath:n {#1} } { \__mhchem_output_escapeFromTextToRomanMath:n {#1} } } \cs_new_protected:Npn \__mhchem_output_escapeFromTextToRomanMath:n #1 { \ensuremath { \__mhchem_output_escapeFromMathToRomanMath:n {#1} } } \cs_new_protected:Npn \__mhchem_output_escapeFromMathToRomanMath:n #1 { \mhchem@option@mathFont { \mhchem@hook@beforeRomanMath #1 } } \cs_new_protected:Npn \__mhchem_output_escapeFromTextToItalicText:n #1 { \group_begin: \itshape \mhchem@hook@beforeItalicText #1 \group_end: \/ } \cs_new_protected:Npn \__mhchem_output_escapeToItalicMath:n #1 { \bool_if:NTF \l__mhchem_output_isMathMode_bool { \__mhchem_output_escapeFromMathToItalicMath:n {#1} } { \ensuremath { \mhchem@hook@beforeItalicMath #1 } } } \cs_new_protected:Npn \__mhchem_output_escapeFromMathToItalicMath:n #1 { \bool_if:NTF \l__mhchem_option_unicodemath_bool { \text { \ensuremath { \symit { \mhchem@hook@beforeItalicMath #1 } } } } { \text { \ensuremath { \mhchem@hook@beforeItalicMath #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 { - } { \mhchem@option@textminus } } \cs_new_protected:Npn \__mhchem_output_operatorPlus: { \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 0.3ex} + \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: { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { {}={} } { \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_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 { \mhchem@option@textElectronDot } { \mhchem@option@textElectronDot } } \cs_new_protected:Npn \__mhchem_output_additionCompound: { \ensuremath { \,{\mhchem@option@cdot}\, } } \cs_new_protected:Npn \__mhchem_output_verticalBar: { \bool_if:NTF \l__mhchem_output_isMathMode_bool { | } { \text{\textbar} } } \cs_new_protected:Npn \__mhchem_output_excited: { \bool_if:NTF \l__mhchem_output_isMathMode_bool { \ast } { \smash{\raisebox{-0.4em}{\scalebox{1.3}{*}}} } } \cs_new_protected:Npn \__mhchem_output_commaDecimal: { \__mhchem_output_withFont:n { {,} } } \cs_new_protected:Npn \__mhchem_output_commaEnumeration: { \__mhchem_output_withFont:n { {,} } \ensuremath { \mkern3mu } } \cs_new_protected:Npn \__mhchem_output_commaAuto: { \__mhchem_regex_peek:NTF \l__mhchem_regex_digit_pregex { \__mhchem_output_commaDecimal: } { \__mhchem_output_commaEnumeration: } } \cs_new_protected:Npn \__mhchem_output_commaEnumerationSmall: { \__mhchem_output_withFont:n { {,} } \ensuremath { \mkern1mu } } \cs_new_protected:Npn \__mhchem_output_commaAutoSmall: { \__mhchem_regex_peek:NTF \l__mhchem_regex_digit_pregex { \__mhchem_output_commaDecimal: } { \__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 \bool_if:NTF \l__mhchem_cg_withinMathTokens_bool { { \chemgreek_get_from_mapping:nn { default } {#1} } } { \mode_if_math:TF { \chemgreek_get_from_mapping:nn { mhchem-math } {#1} } { \chemgreek_get_from_mapping:nn { mhchem-text } {#1} } } \group_end: } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% bonds %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \cs_new_protected:Npn \__mhchem_output_bond_single: { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { {\ensuremath{-}} } { \bool_if:NTF \l__mhchem_output_isMathMode_bool { {\ensuremath{-}} } { \text{\mhchem@option@textminus} } } } \cs_new_protected:Npn \__mhchem_output_bond_double: { \rlap { \protect \raisebox { .2ex }{ \__mhchem_output_bond_single: } } \protect \raisebox { -.2ex }{ \__mhchem_output_bond_single: } } \cs_new_protected:Npn \__mhchem_output_bond_triple: { \rlap { \protect \raisebox { .4ex } { \__mhchem_output_bond_single: } } \rlap{ \__mhchem_output_bond_single: } \protect \raisebox { -.4ex } { \__mhchem_output_bond_single: } } \cs_new_protected:Npn \__mhchem_output_bond_half: { \mhchem@setbondwidth \mhchem@halfbond } \cs_new_protected:Npn \__mhchem_output_bond_oneAndHalf: { \mhchem@setbondwidth \rlap{\protect\raisebox{.2ex}{\mhchem@halfbond}} \protect\raisebox{-.2ex}{\__mhchem_output_bond_single:} } \cs_new_protected:Npn \__mhchem_output_bond_twoAndHalf: { \mhchem@setbondwidth \rlap{\protect\raisebox{.4ex}{\mhchem@halfbond}} \rlap{\__mhchem_output_bond_single:} \protect\raisebox{-.4ex}{\__mhchem_output_bond_single:} } \cs_new_protected:Npn \__mhchem_output_bond_twoAndHalff: { \mhchem@setbondwidth \rlap{\protect\raisebox{.4ex}{\__mhchem_output_bond_single:}} \rlap{\mhchem@halfbond} \protect\raisebox{-.4ex}{\__mhchem_output_bond_single:} } \cs_new_protected:Npn \__mhchem_output_bond_dotdotdot: { {\cdot}{\cdot}{\cdot} } \cs_new_protected:Npn \__mhchem_output_bond_dotdotdotdot: { {\cdot}{\cdot}{\cdot}{\cdot} } \cs_new_protected:Npn \__mhchem_output_bond_rightArrow: { {\rightarrow} } \cs_new_protected:Npn \__mhchem_output_bond_leftArrow: { {\leftarrow} } \newlength\mhchem@bondwidth% \newlength\mhchem@bondheight% \newlength\mhchem@smallbondwidth@tmpA% \newlength\mhchem@smallbondwidth@tmpB% \newlength\mhchem@smallbondwidth% \newlength\mhchem@bondtmp@minussidebearingleft \newlength\mhchem@bondtmp@minussidebearingright \def\mhchem@setbondwidth{% \int_compare:nTF { \l__mhchem_option_version_int < 4 } { \setlength\mhchem@bondtmp@minussidebearingleft{\mhchem@option@minusmathsidebearingleft} \setlength\mhchem@bondtmp@minussidebearingright{\mhchem@option@minusmathsidebearingright} } { \bool_if:NTF \l__mhchem_output_isMathMode_bool { \setlength\mhchem@bondtmp@minussidebearingleft{\mhchem@option@minusmathsidebearingleft} \setlength\mhchem@bondtmp@minussidebearingright{\mhchem@option@minusmathsidebearingright} } { \setlength\mhchem@bondtmp@minussidebearingleft{\mhchem@option@minustextsidebearingleft} \setlength\mhchem@bondtmp@minussidebearingright{\mhchem@option@minustextsidebearingright} } } \setlength\mhchem@bondwidth{\widthof{\__mhchem_output_bond_single:}}% \setlength\mhchem@bondheight{\heightof{\__mhchem_output_bond_single:}}% \setlength\mhchem@smallbondwidth@tmpA{% \mhchem@bondwidth-\mhchem@bondtmp@minussidebearingleft-\mhchem@bondtmp@minussidebearingright}% \setlength\mhchem@smallbondwidth@tmpB{% \widthof{\__mhchem_output_bond_single:\__mhchem_output_bond_single:\__mhchem_output_bond_single:}-\mhchem@bondtmp@minussidebearingleft-% \mhchem@bondtmp@minussidebearingright}% \setlength\mhchem@smallbondwidth{\mhchem@bondwidth*% \ratio{\mhchem@smallbondwidth@tmpA}{\mhchem@smallbondwidth@tmpB}}% } \def\mhchem@halfbond{\rlap{\hspace{\mhchem@bondtmp@minussidebearingleft}% \resizebox{\mhchem@smallbondwidth}{\mhchem@bondheight}{\__mhchem_output_bond_single:}\unskip% \resizebox{\mhchem@smallbondwidth}{\mhchem@bondheight}{\__mhchem_output_bond_single:}% \resizebox{\mhchem@smallbondwidth}{\mhchem@bondheight}{\__mhchem_output_bond_single:}}% \phantom{\__mhchem_output_bond_single:}}% \msg_new:nnn { mhchem } { bond / unknown } { Unknown~bond~type~in~\string\bond~(#1) } \ExplSyntaxOff \ExplSyntaxOn % with special tilde \char_set_catcode_letter:n { 126 } % tilde \cs_new_protected:Npn \mhchem@bond #1 { \ensuremath { \str_case:nnF {#1} { { - } { \__mhchem_output_bond_single: } { 1 } { \__mhchem_output_bond_single: } { = } { \__mhchem_output_bond_double: } { 2 } { \__mhchem_output_bond_double: } { ## } { \__mhchem_output_bond_triple: } { 3 } { \__mhchem_output_bond_triple: } { ~ } { \__mhchem_output_bond_half: } { ~- } { \__mhchem_output_bond_oneAndHalf: } { ~-- } { \__mhchem_output_bond_twoAndHalf: } { ~= } { \__mhchem_output_bond_twoAndHalf: } { -~- } { \__mhchem_output_bond_twoAndHalff: } { ... } { \__mhchem_output_bond_dotdotdot: } { .... } { \__mhchem_output_bond_dotdotdotdot: } { -> } { \__mhchem_output_bond_rightArrow: } { <- } { \__mhchem_output_bond_leftArrow: } } { \msg_error:nnx { mhchem } { bond / unknown } {#1} } } } \ExplSyntaxOff % end of Expl with tilde %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% Package Options %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \ExplSyntaxOn \tl_new:N \l__mhchem_option_tmpa_tl \msg_new:nnn { mhchem } { options / version-too-high } { You~are~using~version~4.xx~of~mhchem, but~you~entered~a~higher~version~number~that~is~not~supported~yet. } \def\mhchem@option@mathFont{\mathrm} \def\mhchem@option@textFont{} \def\mhchem@hook@beforeCe{} \def\mhchem@hook@afterCe{} \def\mhchem@hook@beforeText{} \def\mhchem@hook@beforeItalicText{} \def\mhchem@hook@beforeRomanMath{} \def\mhchem@hook@beforeItalicMath{} \bool_new:N \l__mhchem_option_layoutWasSet_bool \bool_set_false:N \l__mhchem_option_layoutWasSet_bool \bool_new:N \l__mhchem_option_superscriptsStacked_bool \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_textgreekSelectedByUser_bool \bool_set_false:N \l__mhchem_option_textgreekSelectedByUser_bool \bool_new:N \l__mhchem_option_mathgreekSelectedByUser_bool \bool_set_false:N \l__mhchem_option_mathgreekSelectedByUser_bool \keys_define:nn { mhchem } { version .int_set:N = \l__mhchem_option_version_int, version .value_required:n = true, version .initial:n = { -1 }, version .default:n = { -1 }, textfontcommand .code:n = { \def\mhchem@option@textFont{#1} }, textfontname .code:n = { \def\mhchem@option@textFont{\csname#1\endcsname} }, mathfontcommand .code:n = { \def\mhchem@option@mathFont{#1} }, mathfontname .code:n = { \def\mhchem@option@mathFont{\csname#1\endcsname} }, font .choice:, font / sf .code:n = { \def\mhchem@option@textFont{\sffamily} \def\mhchem@option@mathFont{\mathsf} }, font / .code:n = { \def\mhchem@option@textFont{} \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_bool }, math-greek .code:n = { \chemgreek_declare_mapping_alias:nn { mhchem-math } {#1} \bool_set_true:N \l__mhchem_option_mathgreekSelectedByUser_bool }, layout .choice:, layout / stacked .code:n = { \bool_set_true:N \l__mhchem_option_layoutWasSet_bool \bool_set_true:N \l__mhchem_option_superscriptsStacked_bool }, layout / staggered-deep .code:n = { \bool_set_true:N \l__mhchem_option_layoutWasSet_bool \bool_set_false:N \l__mhchem_option_superscriptsStacked_bool \bool_set_true:N \l__mhchem_option_subscriptsDeep_bool }, layout / staggered-flat .code:n = { \bool_set_true:N \l__mhchem_option_layoutWasSet_bool \bool_set_false:N \l__mhchem_option_superscriptsStacked_bool \bool_set_false:N \l__mhchem_option_subscriptsDeep_bool }, minus-sidebearing-left .dim_set:N = \mhchem@option@minusmathsidebearingleft, minus-sidebearing-right .dim_set:N = \mhchem@option@minusmathsidebearingright, minus-math-sidebearing-left .dim_set:N = \mhchem@option@minusmathsidebearingleft, minus-math-sidebearing-left .initial:n = { 0.06em }, minus-math-sidebearing-right .dim_set:N = \mhchem@option@minusmathsidebearingright, minus-math-sidebearing-right .initial:n = { 0.11em }, minus-text-sidebearing-left .dim_set:N = \mhchem@option@minustextsidebearingleft, minus-text-sidebearing-left .initial:n = { 0.10em }, minus-text-sidebearing-right .dim_set:N = \mhchem@option@minustextsidebearingright, minus-text-sidebearing-right .initial:n = { 0.16em }, arrows .code:n = { \str_case:nnF {#1} { { font } { \tl_set:Nn \l__mhchem_option_arrowType_tl {#1} } } { \regex_match:nnTF { \A pgf .* \Z } {#1} { \__mhchem_arrow_init_pgf: {#1} } { { \msg_error:nnn { mhchem } { error-arrow-type } {#1} } } } }, arrows .initial:n = { font }, textminus .tl_set:N = \mhchem@option@textminus, textminus .initial:n = { \hspace{0.3ex} -- \hspace{0.3ex} }, cdot .tl_set:N = \mhchem@option@cdot, cdot .initial:n = { \cdot }, textelectrondot .tl_set:N = \mhchem@option@textElectronDot, textelectrondot .initial:n = { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { \ensuremath{\textbf{\fontfamily{cmr}\selectfont\textperiodcentered}} } { \ensuremath { \bullet } } }, } \newcommand*\mhchemoptions[1] { \keys_set:nn { mhchem } {#1} } \bool_new:N \l__mhchem_option_inPreamble_bool \bool_set_true:N \l__mhchem_option_inPreamble_bool \ProcessKeysPackageOptions{mhchem} \bool_set_false:N \l__mhchem_option_inPreamble_bool \int_compare:nT { -1 = \l__mhchem_option_version_int } { \PackageWarningNoLine { mhchem } { You~did~not~specify~a~'version'~option~for~the~mhchem\MessageBreak package.~Please~write~\string\usepackage[version=4]{mhchem}\MessageBreak in~your~preamble~(or~any~lower~number~for\MessageBreak compatibility~mode),~because~you~might~get~slightly\MessageBreak different~output~with~the~same~input~in~future~versions } \int_set:Nn \l__mhchem_option_version_int { 4 } } % else { \int_compare:nT { \l__mhchem_option_version_int > 4 } { \msg_error:nn { mhchem } { options / version-too-high } } } \bool_if:NF \l__mhchem_option_layoutWasSet_bool { \int_compare:nTF { \l__mhchem_option_version_int < 4 } { \mhchemoptions{layout=staggered-deep} } { \mhchemoptions{layout=staggered-flat} } } \bool_new:N \l__mhchem_option_unicodemath_bool \AtBeginDocument { \bool_if:nF \l__mhchem_option_textgreekSelectedByUser_bool { \chemgreek_declare_mapping_alias:nn { mhchem-text } { \l_chemgreek_active_mapping_tl } } \bool_if:nF \l__mhchem_option_mathgreekSelectedByUser_bool { \chemgreek_declare_mapping_alias:nn { mhchem-math } { \l_chemgreek_active_mapping_tl } } \@ifpackageloaded {unicode-math} { \bool_set_true:N \l__mhchem_option_unicodemath_bool } { \bool_set_false:N \l__mhchem_option_unicodemath_bool } } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%% legacy %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \int_compare:nT { \l__mhchem_option_version_int < 4 } { \newcommand*\cmath[1]{\__mhchem_output_escapeFromMathToItalicMath:n{#1}} \DeclareRobustCommand\cf[2][]{\mhchem@cf[#1]{#2}} \DeclareRobustCommand\cee[1]{\mhchem@cee{#1}} }