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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /macros/latex/contrib/chemmacros/chemmacros4.sty
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+% --------------------------------------------------------------------------
+% the CHEMMACROS package
+%
+% comprehensive support for typesetting chemistry documents
+%
+% --------------------------------------------------------------------------
+% Clemens Niederberger
+% --------------------------------------------------------------------------
+% https://github.org/cgnieder/chemmacros/
+% contact@mychemistry.eu
+% --------------------------------------------------------------------------
+% If you have any ideas, questions, suggestions or bugs to report, please
+% feel free to contact me.
+% --------------------------------------------------------------------------
+% Copyright 2011-2017 Clemens Niederberger
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Clemens Niederberger.
+% --------------------------------------------------------------------------
+\RequirePackage{ expl3 , xparse , l3keys2e }
+\def\chemmacros@version{4.7a}
+\def\chemmacros@date{2015/08/16}
+
+\ExplSyntaxOn
+\ProvidesExplPackage
+ {chemmacros4}
+ {\chemmacros@date}
+ {\chemmacros@version}
+ {\c_chemmacros_info_tl \c_space_tl (CN)}
+
+% --------------------------------------------------------------------------
+% variants of kernel commands:
+\cs_generate_variant:Nn \prop_if_in:NnTF { NV , Nx }
+\cs_generate_variant:Nn \prop_put:Nnn { NV , NVV , NVx }
+\cs_generate_variant:Nn \prop_get:NnNTF { NV }
+\cs_generate_variant:Nn \tl_set_rescan:Nnn { NnV }
+\cs_generate_variant:Nn \tl_if_eq:nnTF { V }
+\cs_generate_variant:Nn \tl_const:cn { cV }
+
+% --------------------------------------------------------------------------
+% load required packages
+% the technical ones:
+\RequirePackage { environ , scrlfile , etoolbox , translations }
+% related to other topics like mathematics or graphics:
+\RequirePackage { xfrac , siunitx , tikz, mathtools , bm }
+% other packages of this bundle -- ghsystem is not loaded here but at the end
+% of the preamble depending on a package option:
+\RequirePackage { chemformula , chemgreek }
+% TikZ libraries (the don't like expl3 syntax):
+\ExplSyntaxOff
+\usetikzlibrary{calc,arrows}
+\ExplSyntaxOn
+
+% --------------------------------------------------------------------------
+% boolean variables for the package options
+\bool_new:N \l__chemmacros_xspace_bool
+\bool_set_true:N \l__chemmacros_xspace_bool
+
+\bool_new:N \l__chemmacros_circled_bool
+\bool_set_true:N \l__chemmacros_circled_bool
+\bool_new:N \l__chemmacros_circled_formal_bool
+\bool_set_true:N \l__chemmacros_circled_formal_bool
+\bool_new:N \l__chemmacros_circled_chem_bool
+\bool_set_true:N \l__chemmacros_circled_chem_bool
+
+\bool_new:N \l__chemmacros_EZ_cool_bool
+\bool_new:N \l__chemmacros_Nu_mathspec_bool
+\bool_new:N \l__chemmacros_chemstyle_bool
+\bool_new:N \l__chemmacros_hyperref_bool
+\bool_new:N \l__chemmacros_varioref_bool
+\bool_new:N \l__chemmacros_chemfig_bool
+\bool_new:N \l__chemmacros_ghsystem_bool
+% \bool_set_true:N \l__chemmacros_ghsystem_bool
+
+\bool_new:N \l__chemmacros_iupac_restricted_bool
+\bool_new:N \l__chemmacros_iupac_strict_bool
+\bool_new:N \l__chemmacros_in_document_bool
+
+\AtBeginDocument
+ {
+ \bool_set_true:N \l__chemmacros_in_document_bool
+ \@ifpackageloaded { chemstyle }
+ { \bool_set_true:N \l__chemmacros_chemstyle_bool }
+ { \bool_set_false:N \l__chemmacros_chemstyle_bool }
+ \@ifpackageloaded { varioref }
+ { \bool_set_true:N \l__chemmacros_varioref_bool }
+ { \bool_set_false:N \l__chemmacros_varioref_bool }
+ \@ifpackageloaded { hyperref }
+ { \bool_set_true:N \l__chemmacros_hyperref_bool }
+ { \bool_set_false:N \l__chemmacros_hyperref_bool }
+ \@ifpackageloaded { chemfig }
+ { \bool_set_true:N \l__chemmacros_chemfig_bool }
+ { \bool_set_false:N \l__chemmacros_chemfig_bool }
+ }
+
+% --------------------------------------------------------------------------
+% warning / error messages
+\msg_new:nnnn { chemmacros } { language-not-defined }
+ { The~ language~ `#1'~ is~ not~ defined~ by~ chemmacros. }
+ {
+ You~ chose~ the~ language~ `#1'~ which~ is~ not~ defined~ by~ chemmacros.~
+ `english'~ is~ used~ instead.~ If~ you~ just~ mistyped~ try~ again!~
+ Otherwise~ contact~ the~ author~ and~ he'll~ probably~ add~ your~ language.
+ }
+
+\msg_new:nnnn { chemmacros } { already-defined }
+ { The~ command~ #1~ is~ already~ defined. }
+ {
+ The~ command~ #1~ has~ already~ been~ otherwise.~ chemmacros~ also~ tries~
+ to~ define~ it~ and~ fails.~
+ }
+
+\msg_new:nnnn { chemmacros } { not-defined }
+ { The~ command~ #1~ is~ not~ defined,~ yet. }
+ {
+ The~ command~ #1~ is~ not~ defined,~ yet.~ chemmacros~ tries~ to~
+ redefine~ it~ and~ fails.~
+ }
+
+\msg_new:nnnn { chemmacros } { option-deprecated }
+ { The~ option~ `#1'~ is~ deprecated.~ I~ will~ ignore~ it. }
+ {
+ The~ package~ option~ `#1'~ is~ deprecated~ and~ not~ used~ by~
+ chemmacros~ any~ more.~ It~ will~ therefore~ simply~ be~ ignored.
+ }
+
+\msg_new:nnnn { chemmacros } { command-deprecated }
+ {
+ The~ command~ \token_to_str:N #1 \c_space_tl is~ deprecated.~ Use~
+ \token_to_str:N #2 \c_space_tl instead.
+ }
+ {
+ The~ command~ \token_to_str:N #1 \c_space_tl is~ deprecated.~ Use~
+ \token_to_str:N #2 \c_space_tl instead.
+ }
+
+\msg_new:nnnn { chemmacros } { command-dropped }
+ {
+ The~ command~ \token_to_str:N #1 \c_space_tl has~ been~ dropped.~ I'm~
+ sorry.
+ }
+ {
+ The~ command~ \token_to_str:N #1 \c_space_tl has~ been~ dropped.~ I'm~
+ sorry.
+ }
+
+\msg_new:nnnn { chemmacros } { new-particle }
+ {
+ The~ command~ sequence~ \token_to_str:N #1 \c_space_tl is~ already~
+ defined.
+ }
+ {
+ You've~ tried~ to~ define~ a~ particle~ with~ \token_to_str:N
+ \NewChemParticle ,~ but~ the~ command~ sequence~ \token_to_str:N #1
+ \c_space_tl already~ exists.~ Please~ choose~ another~ name.
+ }
+
+\msg_new:nnnn { chemmacros } { renew-particle }
+ { The~ particle~ \token_to_str:N #1 \c_space_tl is~ not~ defined. }
+ {
+ You've~ tried~ to~ renew~ the~ particle~ \token_to_str:N #1 ,~ but~ it~
+ doesn't~ exist.
+ }
+
+\msg_new:nnnn { chemmacros } { new-latin }
+ {
+ The~ command~ sequence~ \token_to_str:N #1 \c_space_tl is~ already~
+ defined.
+ }
+ {
+ You've~ tried~ to~ define~ a~ latin~ phrase~ with~\token_to_str:N
+ \NewChemLatin ,~ but~ the~ command~ sequence~ \token_to_str:N #1
+ \c_space_tl already~ exists.~ Please~ choose~ another~ name.
+ }
+
+\msg_new:nnnn { chemmacros } { renew-latin }
+ { The~ latin~ phrase \token_to_str:N #1 \c_space_tl is~ not~ defined. }
+ {
+ You've~ tried~ to~ renew~ the~ latin~ phrase~ \token_to_str:N #1 ,~ but~
+ it~ doesn't~ exist.
+ }
+
+\msg_new:nnnn { chemmacros } { new-nmr }
+ {
+ The~ command~ sequence~ \token_to_str:N #1 \c_space_tl is~ already~
+ defined.
+ }
+ {
+ You've~ tried~ to~ define~ a~ NMR~ command~ with~\token_to_str:N
+ \NewChemParticle ,~ but~ the~ command~ sequence~ \token_to_str:N #1
+ \c_space_tl already~ exists.~ Please~ choose~ another~ name.
+ }
+
+\msg_new:nnnn { chemmacros } { renew-nmr }
+ { The~ NMR~ command~ \token_to_str:N #1 \c_space_tl is~ not~ defined. }
+ {
+ You've~ tried~ to~ renew~ the~ NMR~ command~ \token_to_str:N #1 ,~ but~
+ it~ doesn't~ exist.
+ }
+
+\msg_new:nnnn { chemmacros } { new-phase }
+ {
+ The~ command~ sequence~ \token_to_str:N #1 \c_space_tl is~ already~
+ defined.
+ }
+ {
+ You've~ tried~ to~ define~ a~ phase~ with~ \token_to_str:N
+ \NewChemPhase ,~ but~ the~ command~ sequence~ \token_to_str:N #1
+ \c_space_tl already~ exists.~ Please~ choose~ another~ name.
+ }
+
+\msg_new:nnnn { chemmacros } { renew-phase }
+ { The~ phase~ \token_to_str:N #1 \c_space_tl is~ not~ defined. }
+ {
+ You've~ tried~ to~ renew~ the~ phase~ \token_to_str:N #1 ,~ but~ it~
+ doesn't~ exist.
+ }
+
+\msg_new:nnnn { chemmacros } { new-iupac }
+ {
+ The~ iupac~ naming~ command~ \token_to_str:N #1 \c_space_tl is~ already~
+ defined.
+ }
+ {
+ You've~ tried~ to~ define~ a~ iupac~ naming~ command~ with~
+ \token_to_str:N \NewChemIUPAC ,~ but~ the~ iupac~ command~
+ \token_to_str:N #1 \c_space_tl already~ exists.~ Choose~ another~ name~
+ or~ use~ \token_to_str:N \RenewChemIUPAC .
+ }
+
+\msg_new:nnnn { chemmacros } { renew-iupac }
+ {
+ The~ iupac~ naming~ command~ \token_to_str:N #1 \c_space_tl is~ not~
+ defined.
+ }
+ {
+ You've~ tried~ to~ renew~ the~ iupac~ command~ \token_to_str:N #1 ,~ but~
+ it~ doesn't~ exist.~ Use~ \token_to_str:N \NewChemIUPAC \c_space_tl
+ instead.
+ }
+
+\msg_new:nnnn { chemmacros } { let-iupac }
+ {
+ The~ iupac~ naming~ command~ \token_to_str:N #2 \c_space_tl is~ not~
+ defined.
+ }
+ {
+ You've~ tried~ to~ let~ the~ iupac~ command~ \token_to_str:N #1 ~ to~ the~
+ iupac~ command~ \token_to_str:N #2 ,~ but~ the~ latter~ doesn't~ exist.~
+ Use~ \token_to_str:N \NewChemIUPAC \c_space_tl instead~ or~declare~
+ \token_to_str:N #2 \c_space_tl first.
+ }
+
+\msg_new:nnnn { chemmacros } { ox }
+ { \token_to_str:N \ox \c_space_tl : ~ #1 ~ \msg_line_context: . }
+ { \token_to_str:N \ox \c_space_tl : ~ #1 ~ \msg_line_context: . }
+
+\msg_new:nnnn { chemmacros } { OX }
+ { \token_to_str:N \OX \c_space_tl : ~ #1 ~ \msg_line_context: . }
+ { \token_to_str:N \OX \c_space_tl : ~ #1 ~ \msg_line_context: . }
+
+\msg_new:nnnn { chemmacros } { redox }
+ { \token_to_str:N \redox \c_space_tl : ~ #1 ~ \msg_line_context: . }
+ { \token_to_str:N \redox \c_space_tl : ~ #1 ~ \msg_line_context: . }
+
+\msg_new:nnnn { chemmacros } { chemfig }
+ {
+ You~ need~ to~ load~ the~ `chemfig'~ package~ in~ order~ to~ make~
+ \exp_after:wN \token_to_str:N \cs:w #1 \cs_end: \c_space_tl work~
+ properly~ \msg_line_context: .
+ }
+ {
+ You~ need~ to~ load~ the~ `chemfig'~ package~ in~ order~ to~ make~
+ \exp_after:wN \token_to_str:N \cs:w #1 \cs_end: \c_space_tl work~
+ properly~ \msg_line_context: .
+ }
+
+\msg_new:nnnn { chemmacros } { new-state }
+ {
+ The~ state~ \exp_after:wN \token_to_str:N \cs:w #1 \cs_end: \c_space_tl
+ already~ exists.~ You~ need~ to~ use~ \token_to_str:N \RenewChemState
+ \c_space_tl to~ alter~ it~ \msg_line_context: .
+ }
+ {
+ The~ state~ \exp_after:wN \token_to_str:N \cs:w #1 \cs_end: \c_space_tl
+ already~ exists.~ You~ need~ to~ use~ \token_to_str:N \RenewChemState
+ \c_space_tl to~ alter~ it~ \msg_line_context: .
+ }
+
+\msg_new:nnnn { chemmacros } { renew-state }
+ {
+ The~ state~ \exp_after:wN \token_to_str:N \cs:w #1 \cs_end: \c_space_tl
+ isn't~ set~ up~ yet.~ You~ need~ to~ use~ \token_to_str:N
+ \NewChemState \c_space_tl to~ create~ it~ \msg_line_context: .
+ }
+ {
+ The~ state~ \exp_after:wN \token_to_str:N \cs:w #1 \cs_end: \c_space_tl
+ isn't~ set~ up~ yet.~ You~ need~ to~ use~ \token_to_str:N
+ \NewChemState \c_space_tl to~ create ~it~ \msg_line_context: .
+ }
+
+\msg_new:nnn { chemmacros } { state-syntax }
+ {
+ You're~ using~ a~ no~ longer~ recommended~ syntax~ to~ (re-)define~ a~
+ state~ variable~ \msg_line_context: .~ This~ syntax~ may~ deprecate~ and~
+ be~ removed~ in~ the~ future.
+ }
+
+% declare an option as deprecated:
+\cs_new_protected:Npn \chemmacros_option_deprecated:n #1
+ { \msg_warning:nnn { chemmacros } { option-deprecated } { #1 } }
+
+% define a deprecated command with hints to the corresponding new one:
+\cs_new_protected:Npn \chemmacros_define_deprecated:NN #1#2
+ {
+ \cs_set_protected:Npn #1
+ {
+ \msg_warning:nnxx { chemmacros } { command-deprecated }
+ { #1 } { #2 }
+ #2
+ }
+ }
+
+\NewDocumentCommand \DeclareChemDeprecated { mm }
+ { \chemmacros_define_deprecated:NN #1 #2 }
+
+% define a command as dropped!
+\cs_new_protected:Npn \chemmacros_define_dropped:N #1
+ {
+ \cs_set_protected:Npn #1
+ { \msg_error:nnn { chemmacros } { command-dropped } { #1 } }
+ }
+
+\NewDocumentCommand \DeclareChemDropped { m }
+ { \chemmacros_define_dropped:N #1 }
+
+% --------------------------------------------------------------------------
+% temporary variables
+\tl_new:N \l__chemmacros_tmpa_tl
+\tl_new:N \l__chemmacros_tmpb_tl
+\int_new:N \l__chemmacros_tmpa_int
+\box_new:N \l__chemmacros_tmpa_box
+
+% --------------------------------------------------------------------------
+% language settings:
+\bool_new:N \l__chemmacros_language_auto_bool
+\bool_set_true:N \l__chemmacros_language_auto_bool
+% this token list will hold the chosen language for chemmacros; since the
+% language is either chosen automatically or by option it is only available at
+% begin document
+\tl_new:N \l_chemmacros_language_tl
+\tl_set:Nn \l_chemmacros_language_tl { english }
+\tl_new:N \l__chemmacros_current_language_tl
+
+% translate the key #1
+\cs_new:Npn \chemmacros_translate:n #1
+ {
+ \bool_if:NTF \l__chemmacros_language_auto_bool
+ { \GetTranslation{#1} }
+ { \GetTranslationFor{\l_chemmacros_language_tl}{#1} }
+ }
+
+\AtBeginDocument{
+ \bool_if:NTF \l__chemmacros_language_auto_bool
+ {
+ \tl_set:Nx \l_chemmacros_language_tl
+ { \@trnslt@language{\@trnslt@current@language} }
+ }
+ {
+ \tl_set_eq:NN
+ \l_chemmacros_language_tl
+ \l__chemmacros_current_language_tl
+ }
+}
+
+% --------------------------------------------------------------------------
+% package options
+% circled => circle charges
+% detect-bold => behaviour when font series bold
+% EZ => cool or chemmacros version of \E
+% german => change pKA => pKS etc
+% iupac => behaviour of nomenclature commands
+% ngerman => an alias :)
+% ghsystem => load ghsystem or don't
+% method => use `chemformula' or `mhchem'
+% strict => errors or warnings
+% synchronize => let particles et.al. adapt chemformula's font selection
+% ugreek => behaviour of \chemDelta, \chemalpha, ...
+% version=1 => compatibility for documents set with v1.*
+% xspace => add an \xspace after a whole bunch of macros
+
+% this boolean has to be public since the other packages of the bundle may
+% want to know its value
+
+\bool_new:N \l__chemmacros_detect_bold_bool
+\bool_set_true:N \l__chemmacros_detect_bold_bool
+
+\bool_new:N \l__chemmacros_option_greek_set_bool
+\bool_new:N \l__chemmacros_use_upgreek_bool
+\bool_new:N \l__chemmacros_use_textgreek_bool
+\bool_new:N \l__chemmacros_use_kpfonts_bool
+\bool_new:N \l__chemmacros_use_newtx_bool
+
+\cs_new:Npn \chemmacros_inner_font: {}
+
+\keys_define:nn { chemmacros / option }
+ {
+ compatibility .code:n = ,
+ bpchem .code:n = \chemmacros_option_deprecated:n { bpchem } ,
+ circletype .choice: ,
+ circletype / math .code:n =
+ { \bool_set_false:N \l__chemmacros_circled_chem_bool } ,
+ circletype / chem .code:n =
+ { \bool_set_true:N \l__chemmacros_circled_chem_bool } ,
+ circletype .default:n = chem ,
+ circled .choice: ,
+ circled / none .code:n =
+ {
+ \bool_set_false:N \l__chemmacros_circled_bool
+ \bool_set_false:N \l__chemmacros_circled_formal_bool
+ } ,
+ circled / formal .code:n =
+ {
+ \bool_set_true:N \l__chemmacros_circled_bool
+ \bool_set_true:N \l__chemmacros_circled_formal_bool
+ } ,
+ circled / all .code:n =
+ {
+ \bool_set_true:N \l__chemmacros_circled_bool
+ \bool_set_false:N \l__chemmacros_circled_formal_bool
+ } ,
+ circled .default:n = all ,
+ detect-bold .code:n = \chemmacros_option_deprecated:n { detect-bold } ,
+ EZ .code:n = \chemmacros_option_deprecated:n { EZ } ,
+ german .code:n =
+ \tl_set:Nn \l__chemmacros_current_language_tl { german } ,
+ ngerman .code:n =
+ \tl_set:Nn \l__chemmacros_current_language_tl { ngerman } ,
+ ghsystem .bool_set:N = \l__chemmacros_ghsystem_bool ,
+ ghsystem .default:n = true ,
+ iupac .choice: ,
+ iupac / restricted .code:n =
+ \bool_set_true:N \l__chemmacros_iupac_restricted_bool
+ \bool_set_false:N \l__chemmacros_iupac_strict_bool ,
+ iupac / auto .code:n =
+ \bool_set_false:N \l__chemmacros_iupac_restricted_bool
+ \bool_set_false:N \l__chemmacros_iupac_strict_bool ,
+ iupac / strict .code:n =
+ \bool_set_false:N \l__chemmacros_iupac_restricted_bool
+ \bool_set_true:N \l__chemmacros_iupac_strict_bool ,
+ language .code:n =
+ \tl_if_eq:nnTF { #1 } { auto }
+ { \bool_set_true:N \l__chemmacros_language_auto_bool }
+ {
+ \bool_set_false:N \l__chemmacros_language_auto_bool
+ \tl_set:Nn \l__chemmacros_current_language_tl { #1 }
+ } ,
+ method .choice: ,
+ method / chemformula .code:n =
+ \chemmacros_option_deprecated:n { method } ,
+ method / mhchem .code:n =
+ \chemmacros_option_deprecated:n { method } ,
+ Nu .choice: ,
+ Nu / mathspec .code:n =
+ \bool_set_true:N \l__chemmacros_Nu_mathspec_bool ,
+ Nu / chemmacros .code:n =
+ \bool_set_false:N \l__chemmacros_Nu_mathspec_bool ,
+ strict .code:n =
+ \chemmacros_option_deprecated:n { strict } ,
+ synchronize .choice: ,
+ synchronize / true .code:n =
+ \cs_set_eq:NN \chemmacros_inner_font: \chemformula_font_inner: ,
+ synchronize / false .code:n = \cs_set:Nn \chemmacros_inner_font: {} ,
+ synchronize .default:n = true ,
+ greek .choice: ,
+ greek / upgreek .code:n =
+ \chemgreek_activate_mapping:n { upgreek }
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool ,
+ greek / textgreek .code:n =
+ \chemgreek_activate_mapping:n { textgreek }
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool ,
+ greek / kpfonts .code:n =
+ \chemgreek_activate_mapping:n { kpfonts }
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool ,
+ greek / newtx .code:n =
+ \chemgreek_activate_mapping:n { newtx }
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool ,
+ greek / mathdesign .code:n =
+ \chemgreek_activate_mapping:n { mathdesign }
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool ,
+ greek / fourier .code:n =
+ \chemgreek_activate_mapping:n { fourier }
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool ,
+ greek / textalpha .code:n =
+ \chemgreek_activate_mapping:n { textalpha }
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool ,
+ greek / math .code:n =
+ \chemgreek_activate_mapping:n { default }
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool ,
+ greek / auto .code:n =
+ \bool_set_false:N \l__chemmacros_option_greek_set_bool ,
+ greek .default:n = auto ,
+ upgreek .code:n = \chemmacros_option_deprecated:n { upgreek } ,
+ version .code:n = \chemmacros_option_deprecated:n { version } ,
+ cmversion .code:n = \chemmacros_option_deprecated:n { cmversion } ,
+ cmversion .choice: ,
+ xspace .bool_set:N = \l__chemmacros_xspace_bool ,
+ xspace .default:n = true
+ }
+
+
+
+\ProcessKeysOptions { chemmacros / option }
+
+% --------------------------------------------------------------------------
+% set up a few things:
+% - is `ghsystem' requested?
+% - do we need `xspace'?
+% - what about the greek letters?
+
+\seq_new:N \l__chemmacros_greek_packages_seq
+\prop_new:N \l__chemmacros_greek_mapping_prop
+
+\cs_new_protected:Npn \chemmacros_add_greek_package_mapping:nn #1#2
+ {
+ \seq_put_right:Nn \l__chemmacros_greek_packages_seq {#1}
+ \prop_put:Nnn \l__chemmacros_greek_mapping_prop {#1} {#2}
+ }
+
+\cs_generate_variant:Nn \chemgreek_activate_mapping:n { V }
+
+\cs_new_protected:Npn \__chemmacros_select_greek_mapping:n #1
+ {
+ \bool_if:NF \l__chemmacros_option_greek_set_bool
+ {
+ \@ifpackageloaded { #1 }
+ {
+ \prop_get:NnN
+ \l__chemmacros_greek_mapping_prop
+ { #1 }
+ \l__chemmacros_tmpa_tl
+ \chemgreek_activate_mapping:V \l__chemmacros_tmpa_tl
+ \bool_set_true:N \l__chemmacros_option_greek_set_bool
+ \seq_map_break:
+ }
+ { }
+ }
+ }
+
+\chemmacros_add_greek_package_mapping:nn {upgreek} {upgreek}
+\chemmacros_add_greek_package_mapping:nn {textgreek} {textgreek}
+\chemmacros_add_greek_package_mapping:nn {mathdesign} {mathdesign}
+\chemmacros_add_greek_package_mapping:nn {kpfonts} {kpfonts}
+\chemmacros_add_greek_package_mapping:nn {newtxmath} {newtx}
+\chemmacros_add_greek_package_mapping:nn {fourier} {fourier}
+\chemmacros_add_greek_package_mapping:nn {textalpha} {textalpha}
+
+\AtEndPreamble
+ {
+ \bool_if:NT \l__chemmacros_ghsystem_bool
+ { \RequirePackage { ghsystem } }
+ \bool_if:NT \l__chemmacros_xspace_bool
+ { \RequirePackage { xspace } }
+ \seq_map_function:NN
+ \l__chemmacros_greek_packages_seq
+ \__chemmacros_select_greek_mapping:n
+ }
+
+\cs_new_protected:Npn \chemmacros_xspace:
+ { \bool_if:NT \l__chemmacros_xspace_bool { \xspace } }
+
+% --------------------------------------------------------------------------
+% TikZ drawings - helper macros
+\cs_new_protected:Npn \chemmacros_tikz_picture:nn #1#2
+ { \tikzpicture[#1] #2 \endtikzpicture }
+\cs_generate_variant:Nn \chemmacros_tikz_picture:nn { fn,xn }
+
+\cs_new_protected:Npn \chemmacros_tikz_draw:n #1
+ { \draw[#1] }
+\cs_generate_variant:Nn \chemmacros_tikz_draw:n { f,x }
+
+\cs_new_protected:Npn \chemmacros_tikz_node:n #1
+ { \node[#1] }
+\cs_generate_variant:Nn \chemmacros_tikz_node:n { f,x }
+
+\cs_new_protected:Npn \chemmacros_tikz_shade:n #1
+ { \shade[#1] }
+\cs_generate_variant:Nn \chemmacros_tikz_shade:n { f,x }
+
+\cs_new_protected:Npn \chemmacros_tikz_shadedraw:n #1
+ { \shadedraw[#1] }
+\cs_generate_variant:Nn \chemmacros_tikz_shadedraw:n { f,x }
+
+\cs_new_protected:Npn \chemmacros_tikz_node_in_draw:n #1
+ { node[#1] }
+\cs_generate_variant:Nn \chemmacros_tikz_node_in_draw:n { f,x }
+
+% --------------------------------------------------------------------------
+% a few general functions:
+\cs_new_eq:NN \chemmacros_leave_vmode: \chemformula_leave_vmode:
+\cs_new_eq:NN \chemmacros_ignore_spaces: \tex_ignorespaces:D
+\cs_new_eq:NN \chemmacros_nobreak: \chemformula_nobreak:
+\cs_new_eq:NN \chemmacros_allow_break: \chemformula_allow_break:
+\cs_new_eq:NN \chemmacros_skip_nobreak:N \chemformula_skip_nobreak:N
+\cs_new:Npn \chemmacros_remove_backslash:N #1
+ { \exp_after:wN \use_none:n \token_to_str:N #1 }
+
+\prg_new_protected_conditional:Npnn \chemmacros_if_is_cs:n #1 { T,F,TF }
+ {
+ \tl_set:Nx \l__chemmacros_tmpa_tl { \token_if_cs:NTF #1 { } { x } }
+ \tl_if_blank:VTF \l__chemmacros_tmpa_tl
+ { \prg_return_true: }
+ { \prg_return_false: }
+ }
+
+% detection and handling of bold face:
+\prg_new_protected_conditional:Npnn \chemmacros_if_bold: { T,F,TF }
+ {
+ \seq_if_in:NVTF \l__chemmacros_if_bf_seq \f@series
+ { \prg_return_true: }
+ { \prg_return_false: }
+ }
+
+\seq_new:N \l__chemmacros_if_bf_seq
+
+\seq_set_split:Nnn \l__chemmacros_if_bf_seq { , }
+ {
+ b , bc , bm , bx , bux ,
+ eb , ebc , ebx , mb ,
+ sb , sbc , sbx ,
+ ub , ubc , ubx
+ }
+
+\cs_new_protected:Npn \chemmacros_bm:n #1
+ {
+ \bool_if:NTF \l__chemmacros_detect_bold_bool
+ { \bm { #1 } }
+ { #1 }
+ }
+
+\cs_new_protected:Npn \chemmacros_bf:n #1
+ {
+ \bool_if:NTF \l__chemmacros_detect_bold_bool
+ { { \normalfont \bfseries #1 } }
+ { { \normalfont #1 } }
+ }
+
+\cs_new_protected:Npn \chemmacros_detect_bold:n #1
+ {
+ \chemmacros_if_bold:TF
+ {
+ \mode_if_math:TF
+ { \chemmacros_bm:n { #1 } }
+ { \chemmacros_bf:n { #1 } }
+ }
+ { #1 }
+ }
+
+% ---------------------------------------------------------------------------
+% transition state symbol
+\cs_new_protected:Npn \__chemmacros_transition_state:
+ {
+ \text
+ {
+ \skip_horizontal:n { .1ex }
+ \hbox_overlap_right:n
+ { \rule { .6ex } { 0pt } \rule { .05ex } { 1.3ex } }
+ \hbox_overlap_right:n { \rule [ .4ex ] { 1.3ex } { .05ex } }
+ \rule [ .85ex ] { 1.3ex } { .05ex }
+ \skip_horizontal:n { .1ex }
+ }
+ }
+
+\cs_new_protected:Npn \chemmacros_transition_state:
+ {
+ \ensuremath
+ {
+ \mathchoice
+ { \displaystyle }
+ { \textstyle }
+ { \scriptstyle }
+ { \scriptscriptstyle }
+ \__chemmacros_transition_state:
+ }
+ }
+
+% \DeclareDocumentCommand?
+\cs_new_eq:NN \transitionstatesymbol \chemmacros_transition_state:
+
+% --------------------------------------------------------------------------
+% let's make use of `chemformula' inside some of `chemmacros' commands:
+\cs_new_protected:Nn \chemmacros_atom:n
+ {
+ \mode_if_math:TF
+ { \text { \chemmacros_inner_font: #1 } }
+ { \group_begin: \chemmacros_inner_font: #1 \group_end: }
+ }
+\cs_generate_variant:Nn \chemmacros_atom:n { V }
+
+\cs_new_protected:Npn \chemmacros_text:n #1
+ { \mode_if_math:TF { \text { #1 } } { #1 } }
+
+\tl_new:N \l__chemmacros_chemformula_tl
+
+\cs_new_protected:Npn \chemmacros_chemformula:n #1
+ {
+ \group_begin:
+ \cs_set_eq:NN \chemformula_font_inner: \chemmacros_inner_font:
+ \chemformula_chcpd:nn {} { #1 }
+ \group_end:
+ }
+\cs_generate_variant:Nn \chemmacros_chemformula:n { x,V }
+
+% --------------------------------------------------------------------------
+% particles, charges
+\NewDocumentCommand \NewChemParticle { mm }
+ {
+ \cs_if_free:NTF #1
+ { \chemmacros_define_particle:Nn #1 { #2 } }
+ { \msg_error:nnn { chemmacros } { new-particle } { #1 } }
+ }
+
+\NewDocumentCommand \RenewChemParticle { mm }
+ {
+ \cs_if_free:NTF #1
+ { \msg_error:nnn { chemmacros } { renew-particle } { #1 } }
+ { \chemmacros_define_particle:Nn #1 { #2 } }
+ }
+
+\NewDocumentCommand \DeclareChemParticle { mm }
+ { \chemmacros_define_particle:Nn #1 { #2 } }
+
+\cs_new_protected:Nn \chemmacros_define_particle:Nn
+ {
+ \cs_set_protected:Npn #1
+ {
+ \chemformula_chcpd:nn {} { #2 }
+ \chemmacros_xspace:
+ }
+ }
+
+\NewChemParticle \el { e- }
+\NewChemParticle \prt { p+ }
+\NewChemParticle \ntr { n^0 }
+
+% --------------------------------------------------------------------------
+% charges
+% circled charge signs: they are defined in the `chemformula' module:
+% use directly:
+
+\cs_new_protected:Npn \fplus { { \chemformula_fplus: } }
+\cs_new_protected:Npn \fminus { { \chemformula_fminus: } }
+
+% change output depending on circled-option
+\cs_new_eq:NN \chemmacros_plus: \chemformula_plus:
+\cs_new_eq:NN \chemmacros_minus: \chemformula_minus:
+
+\cs_new_protected:Npn \chemmacros_formal_plus:
+ {
+ \group_begin:
+ \bool_set_true:N \l_chemformula_formal_charges_bool
+ \chemformula_plus:
+ \group_end:
+ }
+
+\cs_new_protected:Npn \chemmacros_formal_minus:
+ {
+ \group_begin:
+ \bool_set_true:N \l_chemformula_formal_charges_bool
+ \chemformula_minus:
+ \group_end:
+ }
+
+\cs_new_protected:Npn \chemmacros_charge:n #1
+ {
+ \chemformula_superscript:n
+ { \chemmacros_detect_bold:n { #1 } }
+ }
+
+\keys_define:nn { chemmacros / charges }
+ { append .code:n = \chemmacros_option_deprecated:n { append } }
+
+\NewDocumentCommand \mch { o }
+ {
+ \IfNoValueTF { #1 }
+ { \chemmacros_charge:n { \chemmacros_minus: } }
+ { \chemmacros_charge:n { #1 \chemmacros_minus: } }
+ }
+
+\NewDocumentCommand \pch { o }
+ {
+ \IfNoValueTF { #1 }
+ { \chemmacros_charge:n { \chemmacros_plus: } }
+ { \chemmacros_charge:n { #1 \chemmacros_plus: } }
+ }
+
+\NewDocumentCommand \fmch { o }
+ {
+ \IfNoValueTF { #1 }
+ { \chemmacros_charge:n { \chemmacros_formal_minus: } }
+ { \chemmacros_charge:n { #1 \chemmacros_formal_minus: } }
+ }
+
+\NewDocumentCommand \fpch { o }
+ {
+ \IfNoValueTF { #1 }
+ { \chemmacros_charge:n { \chemmacros_formal_plus: } }
+ { \chemmacros_charge:n { #1 \chemmacros_formal_plus: } }
+ }
+
+\tl_new:N \l__chemmacros_partial_charge_format_tl
+\tl_set:Nn \l__chemmacros_partial_charge_format_tl { \tiny }
+
+\cs_new_protected:Npn \delm
+ {
+ \mbox {
+ \l__chemmacros_partial_charge_format_tl
+ \c_math_toggle_token \delta \chemmacros_minus: \c_math_toggle_token
+ }
+ \chemmacros_xspace:
+ }
+\cs_new_protected:Npn \delp
+ {
+ \mbox {
+ \l__chemmacros_partial_charge_format_tl
+ \c_math_toggle_token \delta \chemmacros_plus: \c_math_toggle_token
+ }
+ \chemmacros_xspace:
+ }
+\cs_new_protected:Npn \fdelm
+ {
+ \mbox {
+ \l__chemmacros_partial_charge_format_tl
+ \c_math_toggle_token \delta \chemmacros_formal_minus: \c_math_toggle_token
+ }
+ \chemmacros_xspace:
+ }
+\cs_new_protected:Npn \fdelp
+ {
+ \mbox {
+ \l__chemmacros_partial_charge_format_tl
+ \c_math_toggle_token \delta \chemmacros_formal_plus: \c_math_toggle_token
+ }
+ \chemmacros_xspace:
+ }
+
+\cs_new_protected:Npn \scrm
+ { \ensuremath { \scriptstyle \chemmacros_minus: } }
+\cs_new_protected:Npn \scrp
+ { \ensuremath { \scriptstyle \chemmacros_plus: } }
+\cs_new_protected:Npn \fscrm
+ { \ensuremath { \scriptstyle \chemmacros_formal_minus: } }
+\cs_new_protected:Npn \fscrp
+ { \ensuremath { \scriptstyle \chemmacros_formal_plus: } }
+\cs_new_protected:Npn \fsscrm
+ { \ensuremath { \scriptscriptstyle \chemmacros_formal_minus: } }
+\cs_new_protected:Npn \fsscrp
+ { \ensuremath { \scriptscriptstyle \chemmacros_formal_plus: } }
+
+\keys_define:nn { chemmacros / charges }
+ {
+ partial-format .tl_set:N = \l__chemmacros_partial_charge_format_tl
+ }
+
+% --------------------------------------------------------------------------
+% ions, molecules
+% proton, hydroxide, hydronium/oxonium, water, nucleophile, electrophile
+\NewChemParticle \Hpl { H+ }
+\NewChemParticle \Hyd { OH- }
+\NewChemParticle \HtO { H3O+ }
+\NewChemParticle \El { E+ }
+\NewChemParticle \water { H2O }
+
+\NewDocumentCommand \chemmacros_Nu:w { o }
+ {
+ \IfNoValueF { #1 } { \keys_set:nn { chemmacros / particle } { #1 } }
+ \bool_if:NTF \l__chemmacros_particle_elpair_bool
+ { \chemmacros_elpair:n { Nu } \mch }
+ { \chemmacros_chemformula:n { Nu- } }
+ \chemmacros_xspace:
+ }
+
+\AtBeginDocument
+ {
+ \bool_if:NTF \l__chemmacros_Nu_mathspec_bool
+ { \cs_set_eq:NN \Nuc \chemmacros_Nu:w }
+ { \cs_set_eq:NN \Nu \chemmacros_Nu:w }
+ }
+
+\cs_new_protected:Npn \chemmacros_ba:
+ {
+ \bool_if:NTF \l__chemmacros_particle_elpair_bool
+ { \chemmacros_elpair:n { ba } \mch }
+ { \chemmacros_chemformula:n { ba- } }
+ \chemmacros_xspace:
+ }
+
+\NewDocumentCommand \ba { o }
+ {
+ \group_begin:
+ \IfNoValueF { #1 } { \keys_set:nn { chemmacros / particle } { #1 } }
+ \chemmacros_ba:
+ \group_end:
+ }
+
+\cs_new_protected:Npn \chemmacros_elpair:n #1
+ {
+ \bool_if:NTF \l__chemmacros_chemfig_bool
+ {
+ \bool_if:NTF \l__chemmacros_elpair_dots_bool
+ { \chlewis { 0: } { #1 } }
+ { \chlewis { 0| } { #1 } }
+% { { \chemmacros_inner_font: #1 \chlewis { 0=| } { \vphantom { #1 } } } }
+ }
+ {
+ \msg_error:nnn { chemmacros } { chemfig } { #1 }
+ \chemmacros_atom:n { #1 }
+ }
+ }
+
+\bool_new:N \l__chemmacros_particle_elpair_bool
+\bool_new:N \l__chemmacros_elpair_dots_bool
+
+\keys_define:nn { chemmacros / particle }
+ {
+ elpair .choice: ,
+ elpair / false .code:n =
+ { \bool_set_false:N \l__chemmacros_particle_elpair_bool } ,
+ elpair / dots .code:n =
+ {
+ \bool_set_true:N \l__chemmacros_particle_elpair_bool
+ \bool_set_true:N \l__chemmacros_elpair_dots_bool
+ } ,
+ elpair / dash .code:n =
+ {
+ \bool_set_true:N \l__chemmacros_particle_elpair_bool
+ \bool_set_false:N \l__chemmacros_elpair_dots_bool
+ } ,
+ elpair .default:n = dots
+ }
+
+% --------------------------------------------------------------------------
+% IUPAC
+\prop_new:N \l__chemmacros_iupac_prop
+
+\cs_new_protected:Npn \chemmacros_new_iupac:Nn #1#2
+ {
+ \tl_set:Nx \l__chemmacros_tmpa_tl
+ { \chemmacros_remove_backslash:N #1 }
+ \prop_if_in:NVTF \l__chemmacros_iupac_prop \l__chemmacros_tmpa_tl
+ { \msg_error:nnn { chemmacros } { new-iupac } { #1 } }
+ {
+ \prop_put:NVn \l__chemmacros_iupac_prop
+ \l__chemmacros_tmpa_tl
+ { #2 }
+ }
+ \chemmacros_make_iupac:
+ }
+
+\cs_new_protected:Npn \chemmacros_define_iupac:Nn #1#2
+ {
+ \tl_set:Nx \l__chemmacros_tmpa_tl
+ { \chemmacros_remove_backslash:N #1 }
+ \prop_put:NVn \l__chemmacros_iupac_prop
+ \l__chemmacros_tmpa_tl
+ { #2 }
+ \chemmacros_make_iupac:
+ }
+
+\cs_new_protected:Npn \chemmacros_renew_iupac:Nn #1#2
+ {
+ \tl_set:Nx \l__chemmacros_tmpa_tl
+ { \chemmacros_remove_backslash:N #1 }
+ \prop_if_in:NVTF \l__chemmacros_iupac_prop \l__chemmacros_tmpa_tl
+ {
+ \prop_put:NVn \l__chemmacros_iupac_prop
+ \l__chemmacros_tmpa_tl
+ { #2 }
+ }
+ { \msg_error:nnn { chemmacros } { renew-iupac } { #1 } }
+ \chemmacros_make_iupac:
+ }
+
+\cs_new_protected:Npn \chemmacros_let_iupac:NN #1#2
+ {
+ \tl_set:Nx \l__chemmacros_tmpa_tl
+ { \chemmacros_remove_backslash:N #1 }
+ \tl_set:Nx \l__chemmacros_tmpb_tl
+ { \chemmacros_remove_backslash:N #2 }
+ \prop_get:NVNTF \l__chemmacros_iupac_prop
+ \l__chemmacros_tmpb_tl
+ \l__chemmacros_tmpc_tl
+ {
+ \prop_put:NVV \l__chemmacros_iupac_prop
+ \l__chemmacros_tmpa_tl
+ \l__chemmacros_tmpc_tl
+ }
+ { \msg_error:nnnn { chemmacros } { let-iupac } { #1 } { #2 } }
+ \chemmacros_make_iupac:
+ }
+
+\cs_new_protected:Npn \chemmacros_define_deprecated_iupac:NN #1#2
+ {
+ \chemmacros_define_iupac:Nn #1
+ {
+ \msg_warning:nnnn { chemmacros } { command-deprecated }
+ { #1 } { #2 }
+ #2
+ }
+ }
+
+
+\cs_new_protected:Npn \chemmacros_make_iupac:
+ {
+ \bool_if:NT \l__chemmacros_in_document_bool
+ {
+ \bool_if:NTF \l__chemmacros_inside_iupac_bool
+ {
+ \prop_map_inline:Nn \l__chemmacros_iupac_prop
+ { \cs_set_protected:cpn { ##1 } { ##2 } }
+ }
+ {
+ \bool_if:NF \l__chemmacros_iupac_restricted_bool
+ {
+ \bool_if:NTF \l__chemmacros_iupac_strict_bool
+ {
+ \prop_map_inline:Nn \l__chemmacros_iupac_prop
+ { \cs_set_protected:cpn { ##1 } { ##2 } }
+ }
+ {
+ \prop_map_inline:Nn \l__chemmacros_iupac_prop
+ {
+ \cs_if_exist:cF { ##1 }
+ { \cs_set_protected:cpn { ##1 } { ##2 } }
+ }
+ }
+ }
+ }
+ }
+ }
+
+\AtBeginDocument { \chemmacros_make_iupac: }
+
+\NewDocumentCommand \DeclareChemIUPAC { mm }
+ { \chemmacros_define_iupac:Nn #1 { #2 } }
+
+\NewDocumentCommand \NewChemIUPAC { mm }
+ { \chemmacros_new_iupac:Nn #1 { #2 } }
+
+\NewDocumentCommand \RenewChemIUPAC { mm }
+ { \chemmacros_renew_iupac:Nn #1 { #2 } }
+
+\NewDocumentCommand \LetChemIUPAC { mm }
+ { \chemmacros_let_iupac:NN #1 #2 }
+
+\NewDocumentCommand \DeprecateChemIUPAC { mm }
+ { \chemmacros_define_deprecated_iupac:NN #1 #2 }
+
+% stereo descriptors and other nomenclature commands
+% Cahn-Ingold-Prelog
+\dim_new:N \l__chemmacros_cip_kern_dim
+\dim_set:Nn \l__chemmacros_cip_kern_dim { .075em }
+
+\keys_define:nn { chemmacros / iupac }
+ { cip-kern .dim_set:N = \l__chemmacros_cip_kern_dim }
+
+\NewDocumentCommand \cip { m }
+ { \chemmacros_cip:n { #1 } }
+
+\cs_new_protected:Npn \chemmacros_cip:n #1
+ { ( \textit{#1} \tex_kern:D \l__chemmacros_cip_kern_dim ) }
+
+\DeprecateChemIUPAC \Rcip \rectus
+\DeprecateChemIUPAC \Scip \sinister
+
+\NewChemIUPAC \rectus { \cip { R } }
+\NewChemIUPAC \sinister { \cip { S } }
+
+\LetChemIUPAC \R \rectus
+\LetChemIUPAC \S \sinister
+
+% TikZ needs : to be other
+\ExplSyntaxOff
+\protected\def\chemmacros@sconf#1%
+ {%
+ \begingroup
+ \tikz[baseline,text height=1.5ex,text depth=.25ex]
+ {
+ \node[anchor=base] (chemmacros@@Sconf) {#1} ;
+ \draw[->,thick,rotate=90]
+ ($(chemmacros@@Sconf.center)+(20:.8em)$) arc (20:340:.8em);
+ }%
+ \endgroup
+ }
+
+\protected\def\chemmacros@rconf#1%
+ {%
+ \begingroup
+ \tikz[baseline,text height=1.5ex,text depth=.25ex]
+ {
+ \node[anchor=base] (chemmacros@@Rconf) {#1} ;
+ \draw[<-,thick,rotate=90]
+ ($(chemmacros@@Rconf.center)+(20:.8em)$) arc (20:340:.8em) ;
+ }%
+ \endgroup
+ }
+\ExplSyntaxOn
+
+\NewDocumentCommand \Sconf { O{S} } { \chemmacros@sconf { #1 } }
+\NewDocumentCommand \Rconf { O{R} } { \chemmacros@rconf { #1 } }
+
+% E(ntgegen)/Z(usammen)
+\NewChemIUPAC \entgegen { \cip { E } }
+\NewChemIUPAC \zusammen { \cip { Z } }
+
+\LetChemIUPAC \E \entgegen
+\LetChemIUPAC \Z \zusammen
+
+% cis/trans
+\NewChemIUPAC \cis { \textit { cis } }
+\NewChemIUPAC \trans { \textit { trans } }
+
+% fac/mer
+\NewChemIUPAC \fac { \textit { fac } }
+\NewChemIUPAC \mer { \textit { mer } }
+
+% tert
+\NewChemIUPAC \tert { \textit { tert } }
+
+% Fischer
+\NewChemIUPAC \dexter { \textsc { d } }
+\NewChemIUPAC \laevus { \textsc { l } }
+
+\LetChemIUPAC \D \dexter
+\LetChemIUPAC \L \laevus
+
+% ortho/meta/para
+\NewChemIUPAC \ortho { \textit { o } }
+\NewChemIUPAC \meta { \textit { m } }
+\NewChemIUPAC \para { \textit { p } }
+
+% syn/anti
+\NewChemIUPAC \syn { \textit { syn } }
+\NewChemIUPAC \anti { \textit { anti } }
+
+% coordination chemistry
+\bool_new:N \l__chemmacros_bridge_super_bool
+
+\keys_define:nn { chemmacros / iupac }
+ {
+ bridge-number .choice: ,
+ bridge-number / sub .code:n =
+ \bool_set_false:N \l__chemmacros_bridge_super_bool ,
+ bridge-number / super .code:n =
+ \bool_set_true:N \l__chemmacros_bridge_super_bool ,
+ coord-use-hyphen .bool_set:N = \l__chemmacros_coord_use_hyphen_bool ,
+ coord-use-hyphen .default:n = true
+ }
+
+\cs_new_protected:Npn \chemformula_hapto:n #1
+ {
+ \chemeta \chemformula_superscript:n { #1 }
+ \bool_if:NT \l__chemmacros_coord_use_hyphen_bool
+ { \chemmacros_break_point_hyphen: }
+ }
+
+\cs_new_protected:Npn \chemformula_dento:n #1
+ {
+ \chemkappa \chemformula_superscript:n { #1 }
+ \bool_if:NT \l__chemmacros_coord_use_hyphen_bool
+ { \chemmacros_break_point_hyphen: }
+ }
+
+\cs_new_protected:Npn \chemformula_bridge:n #1
+ {
+ \chemmu
+ \tl_if_blank:nF { #1 }
+ {
+ \bool_if:NTF \l__chemmacros_bridge_super_bool
+ { \chemformula_superscript:n { #1 } }
+ { \chemformula_subscript:n { #1 } }
+ }
+ \bool_if:NT \l__chemmacros_coord_use_hyphen_bool
+ { \chemmacros_break_point_hyphen: }
+ }
+
+\NewChemIUPAC \hapto { \chemformula_hapto:n }
+\NewChemIUPAC \dento { \chemformula_dento:n }
+\NewChemIUPAC \bridge { \chemformula_bridge:n }
+
+% attachments to heteroatoms / added hydrogen
+\NewChemIUPAC \hydrogen { \textit { H } }
+\NewChemIUPAC \oxygen { \textit { O } }
+\NewChemIUPAC \nitrogen { \textit { N } }
+\NewChemIUPAC \sulfur { \textit { S } }
+\NewChemIUPAC \phosphorus { \textit { P } }
+
+\LetChemIUPAC \H \hydrogen
+\LetChemIUPAC \O \oxygen
+\LetChemIUPAC \N \nitrogen
+\LetChemIUPAC \Sf \sulfur
+\LetChemIUPAC \P \phosphorus
+
+% language specific settings
+\AtBeginDocument
+ {
+ \bool_if:NT \l__chemmacros_italian_bool
+ {
+ \NewChemIUPAC \sin { \textit { sin } }
+ \NewChemIUPAC \ter { \textit { ter } }
+ }
+ }
+
+% greek letters
+\NewChemIUPAC \a { \chemalpha }
+\NewChemIUPAC \b { \chembeta }
+\NewChemIUPAC \g { \chemgamma }
+\NewChemIUPAC \d { \chemdelta }
+\NewChemIUPAC \k { \chemkappa }
+\NewChemIUPAC \m { \chemmu }
+\NewChemIUPAC \n { \chemeta }
+\NewChemIUPAC \w { \chemomega }
+
+% \iupac (basically the same as bpchem's \IUPAC)
+% - allows multiple breaking points as compound names can get really long and
+% especially in multicolumn documents can span more than two lines
+% - add a (very) little space before the hyphen and a little negative space
+% after it
+% - add a little space at breaking points if not broken
+% - enables all naming commands regardless if they're definied otherwise or not
+\cs_new_protected:Nn \chemmacros_allow_hyphens:
+ {
+ \chemmacros_nobreak:
+ \skip_horizontal:N \c_zero_dim
+ }
+
+\dim_new:N \l__chemmacros_iupac_hyphen_pre_dim
+\dim_set:Nn \l__chemmacros_iupac_hyphen_pre_dim { .01em }
+\dim_new:N \l__chemmacros_iupac_hyphen_post_dim
+\dim_set:Nn \l__chemmacros_iupac_hyphen_post_dim { -.03em }
+\dim_new:N \l__chemmacros_iupac_break_dim
+\dim_set:Nn \l__chemmacros_iupac_break_dim { .03em }
+
+\keys_define:nn { chemmacros / iupac }
+ {
+ hyphen-pre-space .dim_set:N = \l__chemmacros_iupac_hyphen_pre_dim ,
+ hyphen-post-space .dim_set:N = \l__chemmacros_iupac_hyphen_post_dim ,
+ break-space .dim_set:N = \l__chemmacros_iupac_break_dim
+ }
+
+\cs_new_protected:Nn \chemmacros_break_point_hyphen:
+ {
+ \chemmacros_nobreak:
+ \tex_discretionary:D { - } { }
+ {
+ \tex_kern:D \l__chemmacros_iupac_hyphen_pre_dim
+ -
+ \tex_kern:D \l__chemmacros_iupac_hyphen_post_dim
+ }
+ \chemmacros_allow_hyphens:
+ }
+
+\cs_new_protected:Npn \chemmacros_break_point:
+ {
+ \chemmacros_nobreak:
+ \tex_discretionary:D { - } { }
+ { \tex_kern:D \l__chemmacros_iupac_break_dim }
+ \chemmacros_allow_hyphens:
+ }
+
+\cs_new_protected:Npn \chemmacros_superscript:n #1
+ { \mode_if_math:TF { \sb {#1} } { \textsuperscript {#1} } }
+
+\bool_new:N \l__chemmacros_inside_iupac_bool
+
+\char_set_active_eq:NN | \chemmacros_break_point:
+\char_set_active_eq:NN ^ \chemmacros_superscript:n
+
+\group_begin:
+\char_set_catcode_active:N \|
+\char_set_catcode_active:N \^
+
+\cs_new_protected:Npn \chemmacros_iupac:n #1
+ {
+ \group_begin:
+ \bool_set_true:N \l__chemmacros_inside_iupac_bool
+ \chemmacros_make_iupac:
+ \chemmacros_ignore_spaces:
+ \cs_set_eq:NN \- \chemmacros_break_point_hyphen:
+ \chemmacros_define_deprecated:NN \| |
+ \chemmacros_define_deprecated:NN \^ ^
+ \tl_set_rescan:Nnn \l__chemmacros_tmpa_tl
+ {
+ \char_set_catcode_active:N \|
+ \char_set_catcode_active:N \^
+ }
+ {#1}
+ \l__chemmacros_tmpa_tl
+ \group_end:
+ }
+
+\group_end:
+
+% Thanks to Joseph Wright and Enrico Gregorio for the help on the curious
+% redefinition of \- and the end of the compilation
+% see http://tex.stackexchange.com/q/42405/5049 for reference
+\cs_set_protected:Npx \| { \exp_not:o { \| } }
+\cs_set_protected:Npx \- { \exp_not:o { \- } }
+\cs_set_eq:NN \@dischyph \-
+
+\NewDocumentCommand \iupac { }
+ { \chemmacros_iupac:n }
+
+% --------------------------------------------------------------------------
+% latin phrases
+\tl_new:N \l__chemmacros_latin_format_tl
+\tl_set:Nn \l__chemmacros_latin_format_tl { \itshape }
+
+\keys_define:nn { chemmacros / latin }
+ { format . tl_set:N = \l__chemmacros_latin_format_tl }
+
+\cs_new_protected:Npn \chemmacros_latin:n #1
+ { { \l__chemmacros_latin_format_tl #1 } }
+
+\prop_new:N \l__chemmacros_latin_prop
+
+\cs_new_protected:Npn \chemmacros_new_latin:Nn #1#2
+ {
+ \cs_if_free:NTF #1
+ {
+ \cs_new_protected:Npn #1
+ { \chemmacros_latin:n { #2 } \chemmacros_xspace: }
+ \prop_put:Nnn \l__chemmacros_latin_prop { #1 } { #2 }
+ }
+ { \msg_error:nnn { chemmacros } { new-latin } { #1 } }
+ }
+
+\cs_new_protected:Npn \chemmacros_define_latin:Nn #1#2
+ {
+ \cs_if_free:NTF #1
+ {
+ \cs_new_protected:Npn #1
+ { \chemmacros_latin:n { #2 } \chemmacros_xspace: }
+ \prop_put:Nnn \l__chemmacros_latin_prop { #1 } { #2 }
+ }
+ {
+ \cs_set_protected:Npn #1
+ { \chemmacros_latin:n { #2 } \chemmacros_xspace: }
+ \prop_put:Nnn \l__chemmacros_latin_prop { #1 } { #2 }
+ }
+ }
+
+\cs_new_protected:Npn \chemmacros_renew_latin:Nn #1#2
+ {
+ \prop_if_in:NnTF \l__chemmacros_latin_prop { #1 }
+ { \cs_set:Npn #1 { \chemmacros_latin:n { #2 } \chemmacros_xspace: } }
+ { \msg_error:nnn { chemmacros } { renew-latin } { #1 } }
+ }
+
+\NewDocumentCommand \NewChemLatin { mm }
+ { \chemmacros_new_latin:Nn #1 { #2 } }
+
+\NewDocumentCommand \RenewChemLatin { mm }
+ { \chemmacros_renew_latin:Nn #1 { #2 } }
+
+\NewDocumentCommand \DeclareChemLatin { mm }
+ { \chemmacros_define_latin:Nn #1 { #2 } }
+
+\AtBeginDocument
+ {
+ \bool_if:NTF \l__chemmacros_chemstyle_bool
+ {
+ \AfterPackage* { chemstyle }
+ {
+ \cs_undefine:N \invacuo
+ \cs_set_eq:NN \chemmacros_latin:n \cst@latin
+ }
+ }
+ {
+ \cs_new_eq:NN \latin \chemmacros_latin:n
+ }
+ \NewChemLatin \insitu { in~situ }
+ \NewChemLatin \abinitio { ab~initio }
+ \NewChemLatin \invacuo { in~vacuo }
+ }
+
+% --------------------------------------------------------------------------- %
+% acid / base
+\tl_new:N \l__chemmacros_k_acid_tl
+\tl_new:N \l__chemmacros_k_base_tl
+\tl_new:N \l__chemmacros_k_water_tl
+
+% \bool_new:N \l__chemmacros_subscript_lowercase_bool
+
+\tl_set:Nn \l__chemmacros_k_acid_tl
+ { \chemmacros_translate:n {K-acid} }
+
+\tl_set:Nn \l__chemmacros_k_base_tl
+ { \chemmacros_translate:n {K-base} }
+
+\tl_set:Nn \l__chemmacros_k_water_tl
+ { \chemmacros_translate:n {K-water} }
+
+\keys_define:nn { chemmacros / acid-base }
+ {
+ p-style .choice: ,
+ p-style / slanted .code:n = \cs_set_eq:NN \chemmacros_p_style:n \textsl ,
+ p-style / italics .code:n = \cs_set_eq:NN \chemmacros_p_style:n \textit ,
+ p-style / upright .code:n = \cs_set_eq:NN \chemmacros_p_style:n \textup ,
+ K-acid .tl_set:N = \l__chemmacros_k_acid_tl ,
+ K-base .tl_set:N = \l__chemmacros_k_base_tl ,
+ K-water .tl_set:N = \l__chemmacros_k_water_tl ,
+ subscript .code:n = \chemmacros_option_deprecated:n {#1}
+ % subscript / lowercase .code:n =
+ % \bool_set_true:N \l__chemmacros_subscript_lowercase_bool ,
+ % subscript / uppercase .code:n =
+ % \bool_set_false:N \l__chemmacros_subscript_lowercase_bool
+ }
+
+\cs_new_eq:NN \chemmacros_p_style:n \textup
+
+\cs_new_protected:Npn \Ka
+ {
+ \ensuremath
+ {
+ \chemmacros_detect_bold:n
+ {
+ K
+ \c_math_subscript_token
+ { \l__chemmacros_k_acid_tl }
+ }
+ }
+ \chemmacros_xspace:
+ }
+
+\cs_new_protected:Npn \Kb
+ {
+ \ensuremath
+ {
+ \chemmacros_detect_bold:n
+ {
+ K
+ \c_math_subscript_token
+ { \l__chemmacros_k_base_tl }
+ }
+ }
+ \chemmacros_xspace:
+ }
+
+\cs_new_protected:Npn \Kw
+ {
+ \ensuremath
+ {
+ \chemmacros_detect_bold:n
+ {
+ K
+ \c_math_subscript_token
+ { \l__chemmacros_k_water_tl }
+ }
+ }
+ \chemmacros_xspace:
+ }
+
+\cs_new_protected:Npn \chemmacros_p:n #1
+ {
+ \group_begin:
+ \mbox
+ {
+ \chemmacros_p_style:n { p }
+ \ensuremath { #1 }
+ }
+ \group_end:
+ }
+
+\NewDocumentCommand \p { m }
+ { \chemmacros_p:n { #1 } }
+
+\cs_new_protected:Npn \pH
+ {
+ \chemmacros_p:n { \chemmacros_chemformula:n { H } }
+ \chemmacros_xspace:
+ }
+
+\cs_new_protected:Npn \pOH
+ {
+ \chemmacros_p:n { \chemmacros_chemformula:n { OH } }
+ \chemmacros_xspace:
+ }
+
+\NewDocumentCommand \pKa { o }
+ {
+ \chemmacros_p:n
+ {
+ \Ka \IfNoValueF { #1 }
+ { {} \c_math_subscript_token { \chemmacros_detect_bold:n { #1 } } }
+ }
+ \chemmacros_xspace:
+ }
+
+\NewDocumentCommand \pKb { o }
+ {
+ \chemmacros_p:n
+ {
+ \Kb \IfNoValueF { #1 }
+ { {} \c_math_subscript_token { \chemmacros_detect_bold:n { #1 } } }
+ }
+ \chemmacros_xspace:
+ }
+
+% --------------------------------------------------------------------------
+% units
+\DeclareSIUnit { \atm } { atm }
+\DeclareSIUnit { \atmosphere } { atm }
+\DeclareSIUnit { \calory } { cal }
+\DeclareSIUnit { \cal } { cal }
+
+\AtBeginDocument
+ {
+ \bool_if:NF \l__chemmacros_chemstyle_bool
+ {
+ \DeclareSIUnit { \cmc } { \cubic\centi\metre }
+ \DeclareSIUnit { \molar } { \mole\per\cubic\deci\metre }
+ \DeclareSIUnit { \Molar } { \textsc{m} }
+ }
+ }
+
+\DeclareSIUnit { \moLar } { \mole\per\liter }
+\DeclareSIUnit { \MolMass } { \gram\per\mole }
+\DeclareSIUnit { \normal } { \textsc{n} }
+\DeclareSIUnit { \torr } { torr }
+
+% --------------------------------------------------------------------------
+% reaction mechanisms
+% \mech[<type>]
+% <type> - substitutions: {}, 1, 2, se, 1e, 2e, ar
+% - eliminations: e, e1, e2, cb
+\tl_new:N \l__chemmacros_mech_type_tl
+\tl_new:N \l__chemmacros_mech_mol_tl
+\tl_new:N \l__chemmacros_mech_ar_tl
+
+\cs_new_protected:Npn \__chemmacros_set_mech:nnn #1#2#3
+ {
+ \tl_set:Nn \l__chemmacros_mech_type_tl { #1 }
+ \tl_set:Nn \l__chemmacros_mech_mol_tl { #2 }
+ \tl_set:Nn \l__chemmacros_mech_ar_tl { #3 }
+ }
+
+\keys_define:nn { chemmacros / mech }
+ {
+ type .choice: ,
+ type / .code:n =
+ {
+ \__chemmacros_set_mech:nnn { S }
+ {
+ \c_math_toggle_token
+ \c_math_subscript_token { \text {N} }
+ \c_math_toggle_token
+ }
+ { }
+ } ,
+ type / 1 .code:n =
+ {
+ \__chemmacros_set_mech:nnn { S }
+ {
+ \c_math_toggle_token
+ \c_math_subscript_token { \text {N} }
+ \c_math_toggle_token
+ 1
+ }
+ { }
+ } ,
+ type / 2 .code:n =
+ {
+ \__chemmacros_set_mech:nnn { S }
+ {
+ \c_math_toggle_token
+ \c_math_subscript_token { \text {N} }
+ \c_math_toggle_token
+ 2
+ }
+ { }
+ } ,
+ type / se .code:n =
+ {
+ \__chemmacros_set_mech:nnn { S }
+ {
+ \c_math_toggle_token
+ \c_math_subscript_token { \text {E} }
+ \c_math_toggle_token
+ }
+ { }
+ } ,
+ type / 1e .code:n =
+ {
+ \__chemmacros_set_mech:nnn { S }
+ {
+ \c_math_toggle_token
+ \c_math_subscript_token { \text {E} }
+ \c_math_toggle_token
+ 1
+ }
+ { }
+ } ,
+ type / 2e .code:n =
+ {
+ \__chemmacros_set_mech:nnn { S }
+ {
+ \c_math_toggle_token
+ \c_math_subscript_token { \text {E} }
+ \c_math_toggle_token
+ 2
+ }
+ { }
+ } ,
+ type / ar .code:n =
+ {
+ \__chemmacros_set_mech:nnn { S }
+ {
+ \c_math_toggle_token
+ \c_math_subscript_token { \text {E} }
+ \c_math_toggle_token
+ }
+ { Ar - }
+ } ,
+ type / e .code:n =
+ { \__chemmacros_set_mech:nnn { E } { } { } } ,
+ type / e1 .code:n =
+ { \__chemmacros_set_mech:nnn { E } { 1 } { } } ,
+ type / e2 .code:n =
+ { \__chemmacros_set_mech:nnn { E } { 2 } { } } ,
+ type / cb .code:n =
+ {
+ \__chemmacros_set_mech:nnn { E }
+ {
+ 1
+ \c_math_toggle_token
+ \c_math_subscript_token { \text {cb} }
+ \c_math_toggle_token
+ }
+ { }
+ } ,
+ type .default:n =
+ }
+
+\cs_new_protected:Npn \chemmacros_mech:n #1
+ {
+ \tl_if_blank:nTF { #1 }
+ { \keys_set:nn { chemmacros / mech } { type } }
+ { \keys_set:nn { chemmacros / mech } { type = #1 } }
+ \mbox
+ {
+ \tl_use:N \l__chemmacros_mech_ar_tl
+ \tl_use:N \l__chemmacros_mech_type_tl
+ \tl_use:N \l__chemmacros_mech_mol_tl
+ }
+ \chemmacros_xspace:
+ }
+
+\NewDocumentCommand \mech { o }
+ {
+ \IfNoValueTF { #1 }
+ { \chemmacros_mech:n { } }
+ { \chemmacros_mech:n { #1 } }
+ }
+
+% --------------------------------------------------------------------------
+% oxidation numbers
+% \ox{<number>,<atom>}
+\bool_new:N \l__chemmacros_ox_sign_bool
+\bool_new:N \l__chemmacros_ox_integer_bool
+\bool_new:N \l__chemmacros_ox_explicit_sign_bool
+\bool_set_false:N \l__chemmacros_ox_explicit_sign_bool
+\bool_new:N \l__chemmacros_ox_format_roman_bool
+\bool_set_true:N \l__chemmacros_ox_format_roman_bool
+\bool_new:N \l__chemmacros_ox_decimal_marker_comma_bool
+\bool_set_false:N \l__chemmacros_ox_decimal_marker_comma_bool
+\bool_new:N \l__chemmacros_ox_parse_bool
+\bool_set_true:N \l__chemmacros_ox_parse_bool
+\bool_new:N \l__chemmacros_ox_side_bool
+\bool_new:N \l__chemmacros_ox_super_bool
+\bool_new:N \l__chemmacros_ox_top_bool
+\bool_set_true:N \l__chemmacros_ox_top_bool
+\bool_new:N \l__chemmacros_ox_align_center_bool
+
+\int_new:N \l__chemmacros_ox_number_int
+\fp_new:N \l__chemmacros_ox_number_fp
+
+\cs_new_protected:Npn \__chemmacros_ox_process_number:n #1
+ {
+ \bool_if:NTF \l__chemmacros_ox_parse_bool
+ {
+ \tl_if_in:nnTF { #1 } { / }
+ { \__chemmacros_ox_fraction:w #1 \q_stop }
+ {
+ \__chemmacros_ox_sign:n { #1 }
+ \__chemmacros_ox_value:n { #1 }
+ }
+ }
+ { #1 }
+ }
+
+\DeclareInstance { xfrac } { chemmacros-ox-frac } { text }
+ {
+ scale-factor = 1.2 ,
+ denominator-bot-sep = -.5ex ,
+ numerator-top-sep = -.3ex ,
+ slash-left-kern = -.2em ,
+ slash-right-kern = -.2em ,
+ slash-symbol-font = lmr
+ }
+
+\cs_new_protected:Npn \__chemmacros_ox_fraction:w #1/#2 \q_stop
+ {
+ \bool_set_false:N \l__chemmacros_ox_format_roman_bool
+ \__chemmacros_ox_sign:n { #1 }
+ \bool_if:NTF \l__chemmacros_ox_side_bool
+ { \sfrac { \__chemmacros_ox_value:n { #1 } } { #2 } }
+ {
+ \sfrac [ chemmacros-ox-frac ]
+ { \__chemmacros_ox_value:n { #1 } }
+ { #2 }
+ }
+ }
+
+\cs_new_protected:Npn \__chemmacros_ox_sign:n #1
+ {
+ \fp_compare:nNnT { #1 } > { 0 }
+ {
+ \bool_if:NT \l__chemmacros_ox_explicit_sign_bool
+ { \c_math_toggle_token + \c_math_toggle_token }
+ }
+ \fp_compare:nNnT { #1 } = { 0 }
+ {
+ \bool_if:NT \l__chemmacros_ox_explicit_sign_bool
+ { \c_math_toggle_token \pm \c_math_toggle_token }
+ }
+ \fp_compare:nNnT { #1 } < { 0 }
+ { \c_math_toggle_token - \c_math_toggle_token }
+ }
+
+\cs_new_protected:Npn \__chemmacros_ox_value:n #1
+ {
+ \fp_set:Nn \l__chemmacros_ox_number_fp { abs(#1) }
+ \__chemmacros_ox_is_integer:V \l__chemmacros_ox_number_fp
+ \bool_if:NTF \l__chemmacros_ox_format_roman_bool
+ { \__chemmacros_fp_to_Roman:V \l__chemmacros_ox_number_fp }
+ {
+ \bool_if:NTF \l__chemmacros_ox_integer_bool
+ {
+ \c_math_toggle_token
+ \__chemmacros_fp_to_arabic:V \l__chemmacros_ox_number_fp
+ \c_math_toggle_token
+ }
+ {
+ \c_math_toggle_token
+ \__chemmacros_fp_show:V \l__chemmacros_ox_number_fp
+ \c_math_toggle_token
+ }
+ }
+ }
+
+\cs_new_protected:Npn \__chemmacros_ox_is_integer:n #1
+ {
+ \fp_set:Nn \l__chemmacros_tmpa_fp { round(#1 + 1 , 0 ) - 1 }
+ \fp_compare:nNnTF { \l__chemmacros_tmpa_fp } = { #1 }
+ { \bool_set_true:N \l__chemmacros_ox_integer_bool }
+ {
+ \bool_set_false:N \l__chemmacros_ox_integer_bool
+ \bool_set_false:N \l__chemmacros_ox_format_roman_bool
+ }
+ }
+\cs_generate_variant:Nn \__chemmacros_ox_is_integer:n { V }
+
+\cs_new_protected:Npn \__chemmacros_fp_to_Roman:n #1
+ {
+ \group_begin:
+ \fp_set:Nn \l__chemmacros_tmpa_fp { round(#1 , 0 ) }
+ \int_set:Nn \l__chemmacros_tmpa_int
+ { \fp_to_tl:N \l__chemmacros_tmpa_fp }
+ \int_compare:nTF { \l__chemmacros_tmpa_int = 0 }
+ { 0 }
+ { \int_to_Roman:n { \l__chemmacros_tmpa_int } }
+ \group_end:
+ }
+\cs_generate_variant:Nn \__chemmacros_fp_to_Roman:n { V }
+
+\cs_new_protected:Npn \__chemmacros_fp_to_arabic:n #1
+ {
+ \group_begin:
+ \fp_set:Nn \l__chemmacros_tmpa_tl { #1 }
+ \fp_to_tl:N \l__chemmacros_tmpa_tl
+ \group_end:
+ }
+\cs_generate_variant:Nn \__chemmacros_fp_to_arabic:n { V }
+
+\cs_new_protected:Npn \__chemmacros_fp_show:n #1
+ {
+ \group_begin:
+ \fp_set:Nn \l__chemmacros_tmpa_tl { #1 }
+ \bool_if:NTF \l__chemmacros_ox_decimal_marker_comma_bool
+ {
+ \tl_set:Nx \l__chemmacros_tmpb_tl
+ { \fp_to_tl:N \l__chemmacros_tmpa_tl }
+ \tl_replace_once:Nnn \l__chemmacros_tmpb_tl { . } { {,} }
+ \tl_use:N \l__chemmacros_tmpb_tl
+ }
+ { \fp_to_tl:N \l__chemmacros_tmpa_tl }
+ \group_end:
+ }
+\cs_generate_variant:Nn \__chemmacros_fp_show:n { V }
+
+\cs_new_protected:Npn \__chemmacros_ox_write:nn #1#2
+ {
+ \tl_if_blank:nT { #1 }
+ { \msg_error:nnx { chemmacros } { ox } { oxidation~number~missing } }
+ \tl_if_blank:nT { #2 }
+ { \msg_error:nnx { chemmacros } { ox } { atom~missing } }
+ \ensuremath
+ {
+ \bool_if:NT \l__chemmacros_ox_super_bool
+ {
+ \chemmacros_text:n
+ {
+ #2
+ \c_math_toggle_token
+ \c_math_superscript_token
+ { \text { \tiny \__chemmacros_ox_process_number:n { #1 } } }
+ \c_math_toggle_token
+ }
+ }
+ \bool_if:NT \l__chemmacros_ox_side_bool
+ {
+ \chemmacros_text:n
+ { #2 ( \text { \__chemmacros_ox_process_number:n { #1 } } ) }
+ }
+ \bool_if:NT \l__chemmacros_ox_top_bool
+ {
+ \overset
+ {
+ \bool_if:NTF \l__chemmacros_ox_align_center_bool
+ { \clap } { \rlap }
+ {
+ \chemmacros_text:n
+ { \tiny \__chemmacros_ox_process_number:n { #1 } }
+ }
+ }
+ { \chemmacros_text:n { #2 } }
+ }
+ }
+ }
+
+\cs_new_protected:Npn \__chemmacros_ox_pos_top:
+ {
+ \bool_set_true:N \l__chemmacros_ox_top_bool
+ \bool_set_false:N \l__chemmacros_ox_super_bool
+ \bool_set_false:N \l__chemmacros_ox_side_bool
+ }
+
+\cs_new_protected:Npn \__chemmacros_ox_pos_super:
+ {
+ \bool_set_false:N \l__chemmacros_ox_top_bool
+ \bool_set_true:N \l__chemmacros_ox_super_bool
+ \bool_set_false:N \l__chemmacros_ox_side_bool
+ }
+
+\cs_new_protected:Npn \__chemmacros_ox_pos_side:
+ {
+ \bool_set_false:N \l__chemmacros_ox_top_bool
+ \bool_set_false:N \l__chemmacros_ox_super_bool
+ \bool_set_true:N \l__chemmacros_ox_side_bool
+ }
+
+\keys_define:nn { chemmacros / ox }
+ {
+ pos .choice: ,
+ pos / top .code:n = \__chemmacros_ox_pos_top: ,
+ pos / super .code:n = \__chemmacros_ox_pos_super: ,
+ pos / side .code:n = \__chemmacros_ox_pos_side: ,
+ roman .bool_set:N = \l__chemmacros_ox_format_roman_bool ,
+ roman .default:n = true ,
+ parse .bool_set:N = \l__chemmacros_ox_parse_bool ,
+ parse .default:n = true ,
+ explicit-sign .bool_set:N = \l__chemmacros_ox_explicit_sign_bool ,
+ explicit-sign .default:n = true ,
+ decimal-marker .choice: ,
+ decimal-marker / comma .code:n =
+ { \bool_set_true:N \l__chemmacros_ox_decimal_marker_comma_bool } ,
+ decimal-marker / point .code:n =
+ { \bool_set_false:N \l__chemmacros_ox_decimal_marker_comma_bool } ,
+ align .choice: ,
+ align / center .code:n = \bool_set_true:N \l__chemmacros_ox_align_center_bool ,
+ align / right .code:n = \bool_set_false:N \l__chemmacros_ox_align_center_bool
+ }
+
+% \ox[<keyval>]{<num>,<atom>}
+% \ox*[<keyval>]{<num>,<atom>} => always number on the side
+\cs_new_protected:Npn \chemmacros_ox:nnnn #1#2#3#4
+ {
+ \group_begin:
+ \tl_if_blank:nF { #1 } { \__chemmacros_ox_pos_super: }
+ \keys_set:nn { chemmacros / ox } { #2 }
+ \__chemmacros_ox_write:nn { #3 } { #4 }
+ \group_end:
+ }
+
+\NewDocumentCommand \ox { s o > { \SplitArgument { 1 } { , } } m }
+ {
+ \IfBooleanTF { #1 }
+ {
+ \IfNoValueTF { #2 }
+ { \chemmacros_ox:nnnn { #1 } { } #3 }
+ { \chemmacros_ox:nnnn { #1 } { #2 } #3 }
+ }
+ {
+ \IfNoValueTF { #2 }
+ { \chemmacros_ox:nnnn { } { } #3 }
+ { \chemmacros_ox:nnnn { } { #2 } #3 }
+ }
+ }
+
+% --------------------------------------------------------------------------- %
+% - oxidation arrows
+\tl_new:N \l__chemmacros_redox_begin_tl
+\tl_new:N \l__chemmacros_redox_end_tl
+\tl_new:N \l__chemmacros_redox_tikz_tl
+\tl_new:N \l__chemmacros_redox_shift_tl
+\tl_new:N \l__chemmacros_redox_anchor_tl
+\tl_new:N \l__chemmacros_redox_side_tl
+
+\fp_new:N \l__chemmacros_redox_shift_fp
+
+\dim_new:N \l__chemmacros_redox_sep_dim
+\dim_new:N \l__chemmacros_redox_sep_default_dim
+\dim_set:Nn \l__chemmacros_redox_sep_default_dim { .2em }
+\dim_new:N \l__chemmacros_redox_dist_dim
+\dim_set:Nn \l__chemmacros_redox_dist_dim {.6em}
+
+% place and name nodes:
+% \OX{<name>,<atom>}
+\NewDocumentCommand \OX { > { \SplitArgument { 1 } { , } } m }
+ { \chemmacros_redox_partner:nn #1 }
+
+\cs_new_protected:Npn \chemmacros_redox_partner:nn #1#2
+ {
+ \chemformula_latex_if:nTF { measuring@ }
+ {
+ \group_begin:
+ \tikz[baseline=(#1.base)]
+ { \node [inner~sep=0pt] (#1) { #2 } ; }
+ \group_end:
+ }
+ {
+ \tl_if_blank:nT { #1 }
+ { \msg_error:nnx { chemmacros } { OX } { node~name~missing } }
+ \tl_if_blank:nT { #2 }
+ { \msg_error:nnx { chemmacros } { OX } { atom~missing } }
+ \tikz[baseline=(#1.base),remember~picture]
+ { \node [inner~sep=0pt] (#1) { #2 } ; }
+ }
+ }
+
+\cs_new_protected:Npn \__chemmacros_redox_coordinates:nn #1#2
+ {
+ \tl_set:Nn \l__chemmacros_redox_begin_tl { #1 }
+ \tl_set:Nn \l__chemmacros_redox_end_tl { #2 }
+ }
+
+\cs_new_protected:Npn \chemmacros_redox:nnnnn #1#2#3#4#5
+ {
+ \tl_clear:N \l__chemmacros_redox_begin_tl
+ \tl_clear:N \l__chemmacros_redox_end_tl
+ \tl_clear:N \l__chemmacros_redox_tikz_tl
+ \__chemmacros_redox_coordinates:nn { #1 } { #2 }
+ \tl_if_blank:nF { #3 }
+ { \tl_set:Nn \l__chemmacros_redox_tikz_tl { #3 } }
+ \tl_if_blank:nTF { #4 }
+ {
+ \fp_set:Nn \l__chemmacros_redox_shift_fp { 1 }
+ \tl_set:Nn \l__chemmacros_redox_anchor_tl { above }
+ \tl_set:Nn \l__chemmacros_redox_side_tl { north }
+ \dim_set_eq:NN
+ \l__chemmacros_redox_sep_dim
+ \l__chemmacros_redox_sep_default_dim
+ }
+ {
+ \fp_compare:nNnTF { #4 } < { 0 }
+ {
+ \tl_set:Nn \l__chemmacros_redox_anchor_tl { below }
+ \tl_set:Nn \l__chemmacros_redox_side_tl { south }
+ \exp_args:NNo \dim_set:Nn \l__chemmacros_redox_sep_dim
+ { - \l__chemmacros_redox_sep_default_dim }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_redox_anchor_tl { above }
+ \tl_set:Nn \l__chemmacros_redox_side_tl { north }
+ \dim_set_eq:NN
+ \l__chemmacros_redox_sep_dim
+ \l__chemmacros_redox_sep_default_dim
+ }
+ \fp_set:Nn \l__chemmacros_redox_shift_fp { #4 }
+ }
+ \tl_set:Nn \l__chemmacros_redox_shift_tl
+ { \fp_to_tl:N \l__chemmacros_redox_shift_fp }
+ \tikz[remember~picture,overlay]
+ {
+ \chemmacros_tikz_draw:f { \tl_use:N \l__chemmacros_redox_tikz_tl }
+ ($
+ (\l__chemmacros_redox_begin_tl .
+ \l__chemmacros_redox_side_tl)+(0,\l__chemmacros_redox_sep_dim)
+ $)
+ --
+ ++(0,\l__chemmacros_redox_shift_tl * \l__chemmacros_redox_dist_dim) -|
+ node [pos=.25,\l__chemmacros_redox_anchor_tl] { { #5 } }
+ ($
+ (\l__chemmacros_redox_end_tl .
+ \l__chemmacros_redox_side_tl)+(0,\l__chemmacros_redox_sep_dim)
+ $) ;
+ }
+ }
+
+\NewDocumentCommand \redox { > { \SplitArgument { 1 } { , } } r() o o G{} }
+ {
+ \IfNoValueT { #1 }
+ {
+ \msg_error:nnx { chemmacros } { redox }
+ { You~need~to~specify~coordinates }
+ }
+ \IfNoValueTF { #2 }
+ { \chemmacros_redox:nnnnn #1 { } { } { #4 } }
+ {
+ \IfNoValueTF { #3 }
+ { \chemmacros_redox:nnnnn #1 { #2 } { } { #4 } }
+ { \chemmacros_redox:nnnnn #1 { #2 } { #3 } { #4 } }
+ }
+ }
+
+% redox-keys
+\keys_define:nn { chemmacros / redox }
+ {
+ dist .dim_set:N = \l__chemmacros_redox_dist_dim ,
+ dist .default:n = { .6em } ,
+ sep .dim_set:N = \l__chemmacros_redox_sep_default_dim ,
+ sep .default:n = { .2em }
+ }
+
+% --------------------------------------------------------------------------- %
+% spectroscopy
+\tl_new:N \g__chemmacros_nmr_isotope_tl
+\tl_new:N \l__chemmacros_nmr_isotope_default_tl
+\tl_set:Nn \l__chemmacros_nmr_isotope_default_tl { 1 }
+\tl_new:N \l__chemmacros_nmr_coupling_nuclei_tl
+\tl_new:N \l__chemmacros_nmr_coupling_nuclei_pre_tl
+\tl_set:Nn \l__chemmacros_nmr_coupling_nuclei_pre_tl { ( }
+\tl_new:N \l__chemmacros_nmr_coupling_nuclei_post_tl
+\tl_set:Nn \l__chemmacros_nmr_coupling_nuclei_post_tl { ) }
+\tl_new:N \l__chemmacros_nmr_coupling_bonds_tl
+\tl_new:N \l__chemmacros_nmr_coupling_bonds_pre_tl
+\tl_set:Nn \l__chemmacros_nmr_coupling_bonds_pre_tl { }
+\tl_set:Nn \l__chemmacros_nmr_coupling_bonds_post_tl { \! }
+\tl_new:N \l__chemmacros_nmr_coupling_symbol_tl
+\tl_set:Nn \l__chemmacros_nmr_coupling_symbol_tl { J }
+\tl_new:N \g__chemmacros_nmr_element_coupled_tl
+\tl_new:N \g__chemmacros_nmr_element_tl
+\tl_new:N \l__chemmacros_nmr_element_default_tl
+\tl_set:Nn \l__chemmacros_nmr_element_default_tl { H }
+\tl_new:N \l__chemmacros_nmr_format_tl
+\tl_new:N \l__chemmacros_nmr_delta_tl
+\tl_new:N \l__chemmacros_nmr_coupling_unit_tl
+\tl_set:Nn \l__chemmacros_nmr_coupling_unit_tl { \hertz }
+\tl_new:N \l__chemmacros_nmr_unit_tl
+\tl_set:Nn \l__chemmacros_nmr_unit_tl { \mega\hertz }
+\tl_new:N \l__chemmacros_nmr_list_setup_tl
+\tl_set:Nn \l__chemmacros_nmr_list_setup_tl
+ {
+ \topsep\z@skip \partopsep\z@skip
+ \itemsep\z@ \parsep\z@ \itemindent\z@
+ \leftmargin\z@
+ }
+\tl_new:N \l__chemmacros_nmr_position_tl
+\tl_new:N \l__chemmacros_nmr_element_method_connector_tl
+\tl_set:Nn \l__chemmacros_nmr_element_method_connector_tl {-}
+\tl_new:N \l__chemmacros_nmr_method_tl
+\tl_set:Nn \l__chemmacros_nmr_method_tl {NMR}
+
+\bool_new:N \l__chemmacros_nmr_coupling_nuclei_sub_bool
+\bool_new:N \l__chemmacros_nmr_frequency_bool
+\bool_new:N \l__chemmacros_nmr_solvent_bool
+\bool_new:N \l__chemmacros_nmr_delimiters_bool
+\bool_new:N \l__chemmacros_nmr_comma_bool
+\bool_new:N \l__chemmacros_nmr_inner_bool
+\bool_new:N \l__chemmacros_nmr_position_side_bool
+\bool_new:N \l__chemmacros_nmr_parse_bool
+\bool_set_true:N \l__chemmacros_nmr_parse_bool
+\bool_new:N \l__chemmacros_nmr_list_bool
+\bool_new:N \l__chemmacros_nmr_use_equal_bool
+\bool_new:N \l__chemmacros_nmr_custom_command_active_bool
+\bool_new:N \l__chemmacros_nmr_custom_command_used_bool
+
+\cs_new_protected:Npn \__chemmacros_nmr_nucleus:nn #1#2
+ {
+ \tl_gset:Nn \g__chemmacros_nmr_isotope_tl { #1 }
+ \tl_if_in:nnTF { #2 } { [ }
+ { \__chemmacros_nmr_element:w #2 \q_stop }
+ {
+ \tl_gset:No \g__chemmacros_nmr_element_tl { #2 }
+ \tl_gclear:N \g__chemmacros_nmr_element_coupled_tl
+ }
+ }
+\cs_generate_variant:Nn \__chemmacros_nmr_nucleus:nn { VV }
+
+\cs_new_protected:Npn \__chemmacros_nmr_nucleus:w #1,#2 \q_stop
+ {
+ \tl_gset:Nn \g__chemmacros_nmr_isotope_tl { #1 }
+ \tl_if_in:nnTF { #2 } { [ }
+ { \__chemmacros_nmr_element:w #2 \q_stop }
+ {
+ \tl_gset:No \g__chemmacros_nmr_element_tl { #2 }
+ \tl_gclear:N \g__chemmacros_nmr_element_coupled_tl
+ }
+ }
+
+\cs_new_protected:Npn \__chemmacros_nmr_element:w #1[#2] \q_stop
+ {
+ \tl_gset:Nn \g__chemmacros_nmr_element_tl { #1 }
+ \tl_gset:Nn \g__chemmacros_nmr_element_coupled_tl { #2 }
+ }
+
+\cs_new_protected:Npn \__chemmacros_nmr_default_nucleus:w #1,#2 \q_stop
+ {
+ \tl_set:Nn \l__chemmacros_nmr_isotope_default_tl { #1 }
+ \tl_set:Nn \l__chemmacros_nmr_element_default_tl { #2 }
+ }
+
+\cs_new_protected:Npn \__chemmacros_nmr_base:nn #1#2
+ {
+ \tl_if_blank:VF \g__chemmacros_nmr_element_coupled_tl
+ {
+ \tl_put_left:Nn \g__chemmacros_nmr_element_coupled_tl { \{ }
+ \tl_put_right:Nn \g__chemmacros_nmr_element_coupled_tl { \} }
+ }
+ \tl_put_left:Nn \g__chemmacros_nmr_element_coupled_tl { #2 }
+ \iupac { ^ { #1 } }
+ \bool_if:NTF \l__chemmacros_nmr_parse_bool
+ { \chemformula_ch:nV {} \g__chemmacros_nmr_element_coupled_tl }
+ { \chemmacros_atom:V \g__chemmacros_nmr_element_coupled_tl }
+ \tl_use:N \l__chemmacros_nmr_element_method_connector_tl
+ \tl_use:N \l__chemmacros_nmr_method_tl
+ }
+\cs_generate_variant:Nn \__chemmacros_nmr_base:nn { VV }
+
+\cs_new_protected:Npn \__chemmacros_nmr_frequency:n #1
+ {
+ \tl_if_in:nnTF { #1 } { , }
+ { \__chemmacros_nmr_frequency_aux_i:w #1 \q_stop }
+ { \__chemmacros_nmr_frequency_aux_ii:n { #1 } }
+ }
+
+\cs_new_protected:Npn \__chemmacros_nmr_frequency_aux_i:w #1,#2 \q_stop
+ { \SI { #1 } { #2 } }
+
+\cs_new_protected:Npn \__chemmacros_nmr_frequency_aux_ii:n #1
+ { \SI { #1 } { \tl_use:N \l__chemmacros_nmr_unit_tl } }
+
+\cs_new_eq:NN \__chemmacros_nmr_number:n \use:n
+\cs_new_eq:NN \__chemmacros_nmr_position:n \use:n
+
+\keys_define:nn { chemmacros / nmr }
+ {
+ unit .tl_set:N = \l__chemmacros_nmr_unit_tl ,
+ unit .default:n = \mega\hertz ,
+ nucleus .code:n =
+ { \__chemmacros_nmr_default_nucleus:w #1 \q_stop } ,
+ nucleus .default:n = { 1,H } ,
+ format .tl_set:N = \l__chemmacros_nmr_format_tl ,
+ method .tl_set:N = \l__chemmacros_nmr_method_tl ,
+ connector .tl_set:N = \l__chemmacros_nmr_element_method_connector_tl ,
+ pos-number .choice: ,
+ pos-number / sub .code:n =
+ \tl_set:Nn \l__chemmacros_nmr_position_tl { _ }
+ \bool_set_false:N \l__chemmacros_nmr_position_side_bool ,
+ pos-number / super .code:n =
+ \tl_set:Nn \l__chemmacros_nmr_position_tl { ^ }
+ \bool_set_false:N \l__chemmacros_nmr_position_side_bool ,
+ pos-number / side .code:n =
+ \tl_set:Nn \l__chemmacros_nmr_position_tl { - }
+ \bool_set_true:N \l__chemmacros_nmr_position_side_bool ,
+ coupling-unit .tl_set:N = \l__chemmacros_nmr_coupling_unit_tl ,
+ coupling-pos .choice: ,
+ coupling-pos / sub .code:n =
+ \bool_set_true:N \l__chemmacros_nmr_coupling_nuclei_sub_bool ,
+ coupling-pos / side .code:n =
+ \bool_set_false:N \l__chemmacros_nmr_coupling_nuclei_sub_bool ,
+ coupling-nuclei-pre .tl_set:N =
+ \l__chemmacros_nmr_coupling_nuclei_pre_tl ,
+ coupling-nuclei-post .tl_set:N =
+ \l__chemmacros_nmr_coupling_nuclei_post_tl ,
+ coupling-bonds-pre .tl_set:N =
+ \l__chemmacros_nmr_coupling_bonds_pre_tl ,
+ coupling-bonds-post .tl_set:N =
+ \l__chemmacros_nmr_coupling_bonds_post_tl ,
+ coupling-symbol .tl_set:N =
+ \l__chemmacros_nmr_coupling_symbol_tl ,
+ atom-number-cs .code:n =
+ \cs_set_eq:NN \__chemmacros_nmr_number:n #1 ,
+ coupling-pos-cs .code:n =
+ \cs_set_eq:NN \__chemmacros_nmr_position:n #1 ,
+ parse .bool_set:N = \l__chemmacros_nmr_parse_bool ,
+ delta .code:n =
+ \tl_set:Nn \l__chemmacros_nmr_delta_tl { \, #1 } ,
+ list .bool_set:N = \l__chemmacros_nmr_list_bool ,
+ list .default:n = true ,
+ list-setup .tl_set:N = \l__chemmacros_nmr_list_setup_tl ,
+ use-equal .bool_set:N = \l__chemmacros_nmr_use_equal_bool ,
+ use-equal .default:n = true
+ }
+
+\prop_new:N \l__chemmacros_nmr_prop
+
+\cs_new_protected:Npn \chemmacros_new_nmr:Nn #1#2
+ {
+ \bool_if:nTF
+ {
+ \prop_if_in_p:Nn \l__chemmacros_nmr_prop { #1 }
+ ||
+ \cs_if_exist_p:N #1
+ }
+ { \msg_error:nnn { chemmacros } { new-nmr } { #1 } }
+ {
+ \prop_put:Nnn \l__chemmacros_nmr_prop { #1 } { #2 }
+ \NewDocumentCommand #1 { s }
+ { \IfBooleanTF {##1} { \NMR*{#2} } { \NMR{#2} } }
+ }
+ }
+
+\cs_new_protected:Npn \chemmacros_define_nmr:Nn #1#2
+ {
+ \prop_put:Nnn \l__chemmacros_nmr_prop { #1 } { #2 }
+ \cs_if_exist:NTF #1
+ {
+ \RenewDocumentCommand #1 { s }
+ { \IfBooleanTF {##1} { \NMR*{#2} } { \NMR{#2} } }
+ }
+ {
+ \NewDocumentCommand #1 { s }
+ { \IfBooleanTF {##1} { \NMR*{#2} } { \NMR{#2} } }
+ }
+ }
+
+\cs_new_protected:Npn \chemmacros_renew_nmr:Nn #1#2
+ {
+ \bool_if:nTF
+ {
+ \prop_if_in_p:Nn \l__chemmacros_nmr_prop { #1 }
+ &&
+ \cs_if_exist_p:N #1
+ }
+ {
+ \prop_put:Nnn \l__chemmacros_nmr_prop { #1 } { #2 }
+ \RenewDocumentCommand #1 { s }
+ { \IfBooleanTF {##1} { \NMR*{#2} } { \NMR{#2} } }
+ }
+ { \msg_error:nnn { chemmacros } { renew-nmr } { #1 } }
+ }
+
+\NewDocumentCommand \NewChemNMR { mm }
+ { \chemmacros_new_nmr:Nn #1 { #2 } }
+
+\NewDocumentCommand \RenewChemNMR { mm }
+ { \chemmacros_renew_nmr:Nn #1 { #2 } }
+
+\NewDocumentCommand \DeclareChemNMR { mm }
+ { \chemmacros_define_nmr:Nn #1 { #2 } }
+
+\NewDocumentCommand \NMR { s G{} D(){} O{} }
+ {
+ \IfBooleanTF { #1 }
+ { \chemmacros_nmr:nnnn { * } { #2 } { #3 } { #4 } }
+ { \chemmacros_nmr:nnnn { } { #2 } { #3 } { #4 } }
+ }
+
+\AtBeginDocument
+ {
+ % \NMR{<num>,<elem>}(<num>,<unit>)[<solvent>] ALL arguments are optional
+ % \NMR* same but without ": $\delta$" at end
+ \cs_new_protected:Npn \chemmacros_nmr:nnnn #1#2#3#4
+ {
+ \bool_if:NT \l__chemmacros_nmr_list_bool { \item \scan_stop: }
+ \group_begin:
+ \chemmacros_leave_vmode:
+ \bool_set_false:N \l__chemmacros_nmr_frequency_bool
+ \bool_set_false:N \l__chemmacros_nmr_solvent_bool
+ \tl_if_empty:nF { #3 }
+ { \bool_set_true:N \l__chemmacros_nmr_frequency_bool }
+ \tl_if_empty:nF { #4 }
+ { \bool_set_true:N \l__chemmacros_nmr_solvent_bool }
+ \bool_if:nT
+ {
+ \l__chemmacros_nmr_frequency_bool
+ ||
+ \l__chemmacros_nmr_solvent_bool
+ }
+ { \bool_set_true:N \l__chemmacros_nmr_delimiters_bool }
+ \bool_if:nT
+ {
+ \l__chemmacros_nmr_frequency_bool
+ &&
+ \l__chemmacros_nmr_solvent_bool
+ }
+ { \bool_set_true:N \l__chemmacros_nmr_comma_bool }
+ \tl_if_empty:nTF { #2 }
+ {
+ \__chemmacros_nmr_nucleus:VV
+ \l__chemmacros_nmr_isotope_default_tl
+ \l__chemmacros_nmr_element_default_tl
+ }
+ { \__chemmacros_nmr_nucleus:w #2 \q_stop }
+ \mode_if_math:TF
+ {
+ \text
+ {
+ \group_begin:
+ \tl_use:N \l__chemmacros_nmr_format_tl
+ \__chemmacros_nmr_base:VV
+ \g__chemmacros_nmr_isotope_tl
+ \g__chemmacros_nmr_element_tl
+ \bool_if:NT \l__chemmacros_nmr_delimiters_bool
+ { ~ ( }
+ \bool_if:NT \l__chemmacros_nmr_frequency_bool
+ { \__chemmacros_nmr_frequency:n { #3 } }
+ \bool_if:NT \l__chemmacros_nmr_comma_bool
+ { , ~ }
+ \bool_if:NT \l__chemmacros_nmr_solvent_bool
+ { \chemmacros_atom:n { #4 } }
+ \bool_if:NT \l__chemmacros_nmr_delimiters_bool
+ { ) }
+ \tl_if_blank:nT { #1 } { : ~ }
+ \group_end:
+ }
+ \tl_if_blank:nT { #1 }
+ {
+ \delta
+ \text { \l__chemmacros_nmr_delta_tl }
+ \bool_if:NT \l__chemmacros_nmr_use_equal_bool { = }
+ }
+ }
+ {
+ \group_begin:
+ \tl_use:N \l__chemmacros_nmr_format_tl
+ \__chemmacros_nmr_base:VV
+ \g__chemmacros_nmr_isotope_tl
+ \g__chemmacros_nmr_element_tl
+ \bool_if:NT \l__chemmacros_nmr_delimiters_bool
+ { ~ ( }
+ \bool_if:NT \l__chemmacros_nmr_frequency_bool
+ { \__chemmacros_nmr_frequency:n { #3 } }
+ \bool_if:NT \l__chemmacros_nmr_comma_bool
+ { , ~ }
+ \bool_if:NT \l__chemmacros_nmr_solvent_bool
+ {
+ \bool_if:NTF \l__chemmacros_nmr_parse_bool
+ { \chemformula_ch:nn { } { #4 } }
+ { #4 }
+ }
+ \bool_if:NT \l__chemmacros_nmr_delimiters_bool
+ { ) }
+ \tl_if_blank:nT { #1 } { : }
+ \group_end:
+ \tl_if_blank:nT { #1 }
+ {
+ \tl_use:N \c_space_tl
+ \c_math_toggle_token
+ \delta
+ \c_math_toggle_token
+ \l__chemmacros_nmr_delta_tl
+ \bool_if:NT \l__chemmacros_nmr_use_equal_bool { ~ = }
+ }
+ \bool_if:NF \l__chemmacros_nmr_comma_bool
+ { \tl_if_blank:nT { #1 } { \chemmacros_xspace: } }
+ }
+ \group_end:
+ }
+ }
+
+\NewDocumentCommand \chemmacros_data:w { smo }
+ {
+ \bool_if:NT \l__chemmacros_nmr_list_bool { \item }
+ {
+ \tl_use:N \l__chemmacros_nmr_format_tl #2
+ \IfNoValueF { #3 } { ~ ( #3 ) }
+ \IfBooleanT { #1 } { \bool_if:NT \l__chemmacros_nmr_use_equal_bool { : } }
+ }
+ \IfBooleanF { #1 } { \bool_if:NT \l__chemmacros_nmr_use_equal_bool { ~ = } }
+ }
+
+\cs_new_protected:Npn \chemmacros_val:n #1
+ {
+ \tl_if_in:nnTF { #1 } { -- }
+ { \chemmacros_val_aux:w #1 \q_nil }
+ { \num { #1 } }
+ }
+
+\cs_new_protected:Npn \chemmacros_val_aux:w #1--#2 \q_nil
+ { \numrange { #1 } { #2 } }
+
+\NewDocumentEnvironment { experimental } { o }
+ {
+ \group_begin:
+ \IfNoValueF { #1 } { \keys_set:nn { chemmacros / nmr } { #1 } }
+ \bool_set_true:N \l__chemmacros_nmr_inner_bool
+ \cs_set_eq:NN \# \chemmacros_nmr_number:n
+ \cs_set_eq:NN \pos \chemmacros_nmr_position:n
+ \cs_set_eq:NN \J \chemmacros_nmr_coupling:w
+ \cs_set_eq:NN \data \chemmacros_data:w
+ \cs_set_eq:NN \val \chemmacros_val:n
+ \bool_if:NT \l__chemmacros_nmr_list_bool
+ { \list {} { \l__chemmacros_nmr_list_setup_tl } }
+ }
+ {
+ \bool_if:NT \l__chemmacros_nmr_list_bool
+ { \endlist }
+ \group_end:
+ \chemmacros_ignore_spaces:
+ }
+
+\cs_new_protected:Npn \chemmacros_nmr_number:n #1
+ {
+ \__chemmacros_nmr_number:n { #1 } \,
+ \chemmacros_atom:V \g__chemmacros_nmr_element_tl
+ }
+
+\cs_new_protected:Npn \chemmacros_nmr_position:n #1
+ {
+ \chemmacros_chemformula:x
+ {
+ \exp_not:V \g__chemmacros_nmr_element_tl
+ \bool_if:NF \l__chemmacros_nmr_position_side_bool
+ {
+ \exp_not:V \l__chemmacros_nmr_position_tl
+ \exp_not:n { {#1} }
+ }
+ }
+ \bool_if:NT \l__chemmacros_nmr_position_side_bool
+ {
+ \tl_use:N \l__chemmacros_nmr_position_tl
+ \__chemmacros_nmr_position:n { #1 }
+ }
+ }
+
+\cs_new_protected:Npn \chemmacros_nmr_coupling:w
+ {
+ \tl_clear:N \l__chemmacros_nmr_coupling_nuclei_tl
+ \tl_clear:N \l__chemmacros_nmr_coupling_bonds_tl
+ \peek_meaning:NTF (
+ { \__chemmacros_nmr_coupling:w }
+ { \__chemmacros_nmr_coupling_aux_i:w }
+ }
+
+\cs_new_protected:Npn \__chemmacros_nmr_coupling:w (#1;#2)
+ {
+ \tl_set:Nn \l__chemmacros_nmr_coupling_bonds_tl
+ {
+ \l__chemmacros_nmr_coupling_bonds_pre_tl
+ #1
+ \l__chemmacros_nmr_coupling_bonds_post_tl
+ }
+ \bool_if:NTF \l__chemmacros_nmr_coupling_nuclei_sub_bool
+ {
+ \tl_set:Nn \l__chemmacros_nmr_coupling_nuclei_tl
+ {
+ \c_math_subscript_token
+ { \chemmacros_chemformula:n {#2} }
+ }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_nmr_coupling_nuclei_tl
+ {
+ \l__chemmacros_nmr_coupling_nuclei_pre_tl
+ \chemmacros_chemformula:n {#2}
+ \l__chemmacros_nmr_coupling_nuclei_post_tl
+ }
+ }
+ \__chemmacros_nmr_coupling_aux_i:w
+ }
+
+\cs_new_protected:Npn \__chemmacros_nmr_coupling_aux_i:w
+ {
+ \peek_meaning:NTF [
+ { \__chemmacros_nmr_coupling_aux_ii:w }
+ { \__chemmacros_nmr_coupling_aux_iii:n }
+ }
+
+\cs_new_protected:Npn \__chemmacros_nmr_coupling_aux_ii:w [#1]#2
+ {
+ \group_begin:
+ \sisetup
+ {
+ list-final-separator={,~},
+ list-pair-separator={,~},
+ list-units=single
+ }
+ \c_math_toggle_token
+ ^{ \l__chemmacros_nmr_coupling_bonds_tl }
+ \l__chemmacros_nmr_coupling_symbol_tl
+ \l__chemmacros_nmr_coupling_nuclei_tl = \SIlist{#2}{#1}
+ \c_math_toggle_token
+ \group_end:
+ }
+
+\cs_new_protected:Npn \__chemmacros_nmr_coupling_aux_iii:n #1
+ {
+ \group_begin:
+ \sisetup
+ {
+ list-final-separator={,~},
+ list-pair-separator={,~},
+ list-units=single
+ }
+ \c_math_toggle_token
+ ^{ \l__chemmacros_nmr_coupling_bonds_tl }
+ \l__chemmacros_nmr_coupling_symbol_tl
+ \l__chemmacros_nmr_coupling_nuclei_tl
+ = \exp_args:Nno \SIlist { #1 } { \l__chemmacros_nmr_coupling_unit_tl }
+ \c_math_toggle_token
+ \group_end:
+ }
+
+% --------------------------------------------------------------------------
+% deprecated mhName:
+\keys_define:nn { chemmacros }
+ { mhName .code:n = \chemmacros_option_deprecated:n { mhName } }
+
+% --------------------------------------------------------------------------- %
+% - phases
+\bool_new:N \l__chemmacros_phases_sub_bool
+\dim_new:N \l__chemmacros_phases_space_dim
+\dim_set:Nn \l__chemmacros_phases_space_dim { .1333 em }
+\prop_new:N \l__chemmacros_phases_prop
+\prop_new:N \l__chemmacros_phases_german_prop
+
+\keys_define:nn { chemmacros / phases }
+ {
+ pos .choice: ,
+ pos / sub .code:n = \bool_set_true:N \l__chemmacros_phases_sub_bool ,
+ pos / side .code:n = \bool_set_false:N \l__chemmacros_phases_sub_bool ,
+ space .dim_set:N = \l__chemmacros_phases_space_dim
+ }
+
+\cs_new_protected:Npn \chemmacros_new_phase:Nn #1#2
+ {
+ \tl_set:Nx \l__chemmacros_tmpa_tl
+ { \chemmacros_remove_backslash:N #1 }
+ \cs_if_free:NF #1
+ { \msg_error:nnn {chemmacros} {new-phase} {#1} }
+ \exp_args:Nx \@trnslt@declare@translation
+ { phase-\l__chemmacros_tmpa_tl } {fallback} {#2}
+ \__chemmacros_define_phase:Nx #1
+ {
+ \exp_not:N \chemmacros_translate:n
+ { phase-\l__chemmacros_tmpa_tl }
+ }
+ }
+
+\cs_new_protected:Npn \chemmacros_define_phase:Nn #1#2
+ {
+ \tl_set:Nx \l__chemmacros_tmpa_tl
+ { \chemmacros_remove_backslash:N #1 }
+ \exp_args:Nx \@trnslt@declare@translation
+ { phase-\l__chemmacros_tmpa_tl } {fallback} {#2}
+ \__chemmacros_define_phase:Nx #1
+ {
+ \exp_not:N \chemmacros_translate:n
+ { phase-\l__chemmacros_tmpa_tl }
+ }
+ }
+
+\cs_new_protected:Npn \chemmacros_renew_phase:Nn #1#2
+ {
+ \tl_set:Nx \l__chemmacros_tmpa_tl
+ { \chemmacros_remove_backslash:N #1 }
+ \cs_if_exist:NF #1
+ { \msg_error:nnn {chemmacros} {renew-phase} {#1} }
+ \exp_args:Nx \@trnslt@declare@translation
+ { phase-\l__chemmacros_tmpa_tl } {fallback} {#2}
+ \__chemmacros_define_phase:Nx #1
+ {
+ \exp_not:N \chemmacros_translate:n
+ { phase-\l__chemmacros_tmpa_tl }
+ }
+ }
+
+\NewDocumentCommand \NewChemPhase { mom }
+ { \chemmacros_new_phase:Nn #1 {#3} }
+
+\NewDocumentCommand \DeclareChemPhase { mom }
+ { \chemmacros_define_phase:Nn #1 {#3} }
+
+\NewDocumentCommand \RenewChemPhase { mom }
+ { \chemmacros_renew_phase:Nn #1 {#3} }
+
+\cs_new_protected:Npn \__chemmacros_define_phase:Nn #1#2
+ {
+ \cs_if_exist:NF #1 { \cs_new:Npn #1 {} }
+ \DeclareDocumentCommand #1 { o }
+ {
+ \bool_if:NTF \l__chemmacros_phases_sub_bool
+ {
+ \bool_if:NTF \l_chemformula_inside_ch_bool
+ { \chemformula_subscript:n { ( #2 \IfNoValueF {##1} {,~##1} ) } }
+ {
+ \ensuremath
+ {
+ \c_math_subscript_token
+ { \text { ( #2 \IfNoValueF {##1} {,~##1} ) } }
+ }
+ }
+ }
+ {
+ \ensuremath
+ {
+ \skip_horizontal:N \l__chemmacros_phases_space_dim
+ \text { ( #2 \IfNoValueF {##1} {,~##1} ) }
+ }
+ }
+ }
+ }
+\cs_generate_variant:Nn \__chemmacros_define_phase:Nn { Nx }
+
+\NewChemPhase \sld {s}
+\NewChemPhase \lqd {l}
+\NewChemPhase \gas {g}
+\NewChemPhase \aq {aq}
+
+\cs_new_protected:Npn \chemmacros_phase:n #1
+ {
+ \bool_if:NTF \l__chemmacros_phases_sub_bool
+ { \ensuremath { \c_math_subscript_token { \text { (#1) } } } }
+ {
+ \ensuremath
+ {
+ \skip_horizontal:N \l__chemmacros_phases_space_dim
+ \text { (#1) }
+ }
+ }
+ }
+
+\NewDocumentCommand \phase { m }
+ { \chemmacros_phase:n {#1} }
+
+% --------------------------------------------------------------------------
+% reaction environments
+\cs_new_protected:Npn \__chemmacros_record_for_lor:nnnnn #1#2#3#4#5
+ {
+ \tl_if_eq:nnT { #1 } { reaction }
+ {
+ \group_begin:
+ % we need to prevent \Hy@make@anchor from being written to the lor
+ % file:
+ \bool_if:NT \l__chemmacros_hyperref_bool
+ { \cs_set:Npn \Hy@make@anchor {} }
+ \addcontentsline { lor } { reaction }
+ {
+ \tl_use:N \l__chemmacros_reaction_lorname_tl
+ \tl_use:N \c_space_tl
+ #2 #3 #4 #5
+ \tl_use:N \g__chemmacros_reaction_description_tl
+ }
+ \tl_gclear:N \g__chemmacros_reaction_description_tl
+ \group_end:
+ }
+ }
+
+% redefine mathtools' command \MT_define_tagform:nwnn to ensure we add an
+% entry to the list of reactions even if the user redefines the reaction tag
+% this should probably be done via patching...
+\AfterPackage* { mathtools }
+ {
+ \cs_set_protected:Npn \MT_define_tagform:nwnn #1[#2]#3#4
+ {
+ \@namedef{MT_tagform_#1:n}##1
+ {
+ % this is the original part:
+ \maketag@@@{#3\ignorespaces#2{##1}\unskip\@@italiccorr#4}
+ % this is added => this disturbs hyperref:
+ \__chemmacros_record_for_lor:nnnnn
+ { #1 } { #3 } { #2 } { ##1 } { #4 }
+ }
+ }
+ }
+
+\tl_new:N \g__chemmacros_reaction_description_tl
+
+\cs_new_protected:Npn \chemmacros_add_reaction_description:n #1
+ {
+ \tl_if_blank:nF { #1 }
+ { \tl_gset:Nn \g__chemmacros_reaction_description_tl { : ~ #1 } }
+ }
+
+\NewDocumentCommand \AddRxnDesc { m }
+ { \chemmacros_add_reaction_description:n { #1 } }
+
+% define \listofreactions
+\tl_new:N \l__chemmacros_reaction_lorname_tl
+\tl_new:N \reactionlistname
+\tl_new:N \l__chemmacros_reaction_heading_tl
+
+\cs_new:Npn \__chemmacros_reaction_heading:n #1
+ { \l__chemmacros_reaction_heading_tl { #1 } }
+\cs_generate_variant:Nn \__chemmacros_reaction_heading:n { V }
+
+\cs_new_protected:Npn \listofreactions
+ {
+ \__chemmacros_reaction_heading:V \reactionlistname
+ \@starttoc { lor }
+ }
+
+\cs_new_protected:Npn \l@reaction #1#2
+ { \@dottedtocline { 1 } { 1.5em } { 2.3em } { #1 } { #2 } }
+
+% create tagform
+\newtagform { reaction } { \{ } { \} }
+\newcounter { chemmacros_save_reaction }
+\newcounter { reaction }
+
+% switch to reaction tags
+\cs_new_protected:Npn \__chemmacros_begin_reaction:
+ {
+ % create individual names for `hyperref':
+ \bool_if:NT \l__chemmacros_hyperref_bool
+ {
+ \cs_set:Npn \theHequation
+ { R . \theHsection . \arabic { reaction } }
+ }
+ % enable labelformat `reaction':
+ \bool_if:NT \l__chemmacros_varioref_bool
+ { \cs_set_eq:NN \p@equation \p@reaction }
+ \setcounter { chemmacros_save_reaction } { \value { equation } }
+ \setcounter { equation } { \value { reaction } }
+ \usetagform { reaction }
+ }
+
+% switch back to equation tags
+\cs_new_protected:Npn \__chemmacros_end_reaction:
+ {
+ \setcounter { reaction } { \value { equation } }
+ \setcounter { equation } { \value { chemmacros_save_reaction } }
+ }
+
+% --------------------------------------------------------------------------- %
+\bool_new:N \l__chemmacros_reactions_star_bool
+\bool_new:N \l__chemmacros_reactions_args_bool
+
+\keys_define:nn { chemmacros / reaction }
+ {
+ star .bool_set:N = \l__chemmacros_reactions_star_bool ,
+ star .default:n = true ,
+ arg .bool_set:N = \l__chemmacros_reactions_args_bool ,
+ arg .default:n = true ,
+ list-name .tl_set:N = \reactionlistname ,
+ list-entry .code:n =
+ \tl_set:Nn \l__chemmacros_reaction_lorname_tl { #1 } ,
+ list-heading .tl_set:N = \l__chemmacros_reaction_heading_tl
+ }
+
+% \DeclareChemReaction[<keyval>]{<name>}{<type>}
+\cs_new_protected:Npn \__chemmacros_define_reaction:Nnnn #1#2#3#4
+ {
+ \bool_set_false:N \l__chemmacros_reactions_star_bool
+ \bool_set_false:N \l__chemmacros_reactions_args_bool
+ \keys_set:nn { chemmacros / reaction } { #2 }
+ \bool_if:NTF \l__chemmacros_reactions_args_bool
+ {
+ #1 { #3 } [ 2 ] []
+ {
+ \__chemmacros_begin_reaction:
+ \AddRxnDesc { ##1 }
+ \begin { #4 } { ##2 }
+ \chemmacros_equation_chemformula:V \BODY
+ \end{ #4 }
+ \__chemmacros_end_reaction:
+ }
+ \bool_if:NT \l__chemmacros_reactions_star_bool
+ {
+ #1 { #3* } [ 1 ]
+ {
+ \begin { #4* } { ##1 }
+ \chemmacros_equation_chemformula:V \BODY
+ \end { #4* }
+ }
+ }
+ }
+ {
+ #1 { #3 } [ 1 ] []
+ {
+ \__chemmacros_begin_reaction:
+ \AddRxnDesc { ##1 }
+ \begin { #4 }
+ \chemmacros_equation_chemformula:V \BODY
+ \end { #4 }
+ \__chemmacros_end_reaction:
+ }
+ \bool_if:NT \l__chemmacros_reactions_star_bool
+ {
+ #1 { #3* }
+ {
+ \begin { #4* }
+ \chemmacros_equation_chemformula:V \BODY
+ \end { #4* }
+ }
+ }
+ }
+ \ignorespaces
+ }
+
+\cs_new_protected:Npn \chemmacros_define_reaction:nnn #1#2#3
+ {
+ \cs_if_exist:cTF { #2 }
+ { \__chemmacros_define_reaction:Nnnn \RenewEnviron { #1 } { #2 } { #3 } }
+ { \__chemmacros_define_reaction:Nnnn \NewEnviron { #1 } { #2 } { #3 } }
+ }
+
+\cs_new_protected:Npn \chemmacros_new_reaction:nnn #1#2#3
+ {
+ \cs_if_exist:cTF { #2 }
+ { \msg_error:nnx { chemmacros } { already-defined } { #2 } }
+ { \__chemmacros_define_reaction:Nnnn \NewEnviron { #1 } { #2 } { #3 } }
+ }
+
+\cs_new_protected:Npn \chemmacros_renew_reaction:nnn #1#2#3
+ {
+ \cs_if_exist:cTF { #2 }
+ { \__chemmacros_define_reaction:Nnnn \RenewEnviron { #1 } { #2 } { #3 } }
+ { \msg_error:nnx { chemmacros } { not-defined } { #2 } }
+ }
+
+\NewDocumentCommand \NewChemReaction { O{} m m }
+ { \chemmacros_new_reaction:nnn { #1 } { #2 } { #3 } }
+\NewDocumentCommand \RenewChemReaction { O{} m m }
+ { \chemmacros_renew_reaction:nnn { #1 } { #2 } { #3 } }
+\NewDocumentCommand \DeclareChemReaction { O{} m m }
+ { \chemmacros_declare_reaction:nnn { #1 } { #2 } { #3 } }
+\DeclareChemDeprecated \newreaction \NewChemReaction
+
+\cs_new_protected:Npn \chemmacros_equation_chemformula:n #1
+ { \chemformula_ch:nn { } { #1 } }
+\cs_generate_variant:Nn \chemmacros_equation_chemformula:n { V }
+
+% predefined:
+\NewChemReaction [ star ] { reaction } { equation }
+\NewChemReaction [ star ] { reactions } { align }
+
+% --------------------------------------------------------------------------
+% thermodynamics et.al.
+% \standardstate as defined by the chemstyle package. Thanks to Joseph Wright
+% the `chemstyle' provides it with \providecommand so it doesn't matter which
+% package defines it first
+\ProvideDocumentCommand \standardstate {}
+ { { \ensuremath { \chemmacros_standardstate: } } }
+
+\cs_new_protected:Npn \chemmacros_standardstate:
+ { \mathpalette \chemmacros_standardstate_aux: \circ }
+
+\cs_new_protected:Npn \chemmacros_standardstate_aux: #1#2
+ {
+ \ooalign
+ {
+ \tex_hfil:D
+ \c_math_toggle_token #1- \c_math_toggle_token
+ \tex_hfil:D
+ \tex_cr:D
+ \tex_hfil:D
+ \c_math_toggle_token #1#2 \c_math_toggle_token
+ \tex_hfil:D
+ \tex_cr:D
+ }
+ }
+
+\cs_new_protected:Npn \changestate
+ { \mathop{} \! \chemDelta }
+
+% --------------------------------------------------------------------------
+% \State
+\tl_new:N \l__chemmacros_State_delta_tl
+\tl_set:Nn \l__chemmacros_State_delta_tl { \changestate }
+\tl_new:N \l__chemmacros_State_exponent_tl
+\tl_set:Nn \l__chemmacros_State_exponent_tl { \standardstate }
+
+\bool_new:N \l__chemmacros_State_delta_bool
+\bool_set_true:N \l__chemmacros_State_delta_bool
+\bool_new:N \l__chemmacros_State_subscript_left_bool
+\bool_set_true:N \l__chemmacros_State_subscript_left_bool
+\bool_new:N \l__chemmacros_State_exponent_bool
+\bool_set_true:N \l__chemmacros_State_exponent_bool
+
+\keys_define:nn { chemmacros / state }
+ {
+ delta .code:n =
+ {
+ \exp_args:Nf \tl_if_eq:nnTF { #1 } { false }
+ { \bool_set_false:N \l__chemmacros_State_delta_bool }
+ {
+ \bool_set_true:N \l__chemmacros_State_delta_bool
+ \tl_set:Nn \l__chemmacros_State_delta_tl { #1 }
+ }
+ } ,
+ subscript-left .bool_set:N = \l__chemmacros_State_subscript_left_bool ,
+ subscript-left .default:n = true ,
+ exponent .code:n =
+ {
+ \exp_args:Nf \tl_if_eq:nnTF { #1 } { false }
+ { \bool_set_false:N \l__chemmacros_State_exponent_bool }
+ {
+ \bool_set_true:N \l__chemmacros_State_exponent_bool
+ \tl_set:Nn \l__chemmacros_State_exponent_tl { #1 }
+ }
+ } ,
+ exponent .default:n = \standardstate
+ }
+
+% old syntax (v1.1):
+% \State[<exp>,<Delta>,<subscript pos>]{<Symbol>}{<subscript>}
+% old syntax (v2.0):
+% \State[<keyval>]{<Symbol>}{<subscript>}
+% {<subscript>} is an optional argument!
+\cs_new_protected:Npn \chemmacros_state:nnn #1#2#3
+ {
+ \group_begin:
+ \keys_set:nn { chemmacros / state } { #1 }
+ \ensuremath
+ {
+ \bool_if:NT \l__chemmacros_State_delta_bool
+ { \tl_use:N \l__chemmacros_State_delta_tl }
+ \bool_if:NT \l__chemmacros_State_subscript_left_bool
+ { \c_math_subscript_token { \text { #3 } } }
+ #2
+ \bool_if:NF \l__chemmacros_State_subscript_left_bool
+ { \c_math_subscript_token { \text { #3 } } }
+ \bool_if:NT \l__chemmacros_State_exponent_bool
+ { ^ { \tl_use:N \l__chemmacros_State_exponent_tl } }
+ }
+ \group_end:
+ }
+\cs_generate_variant:Nn \chemmacros_state:nnn { xnV }
+
+\NewDocumentCommand \State { s O{} m G{} }
+ {
+ \group_begin:
+ \IfBooleanT { #1 }
+ {
+ \keys_set:nn { chemmacros / state }
+ { subscript-left = false , exponent = }
+ }
+ \chemmacros_state:nnn { #2 } { #3 } { #4 }
+ \group_end:
+ }
+
+% --------------------------------------------------------------------------
+\tl_new:N \l__chemmacros_thermod_subscript_left_tl
+\tl_new:N \l__chemmacros_thermod_subscript_left_default_tl
+\tl_new:N \l__chemmacros_thermod_subscript_tl
+\tl_new:N \l__chemmacros_thermod_subscript_default_tl
+\tl_new:N \l__chemmacros_thermod_unit_tl
+\tl_new:N \l__chemmacros_thermod_exponent_tl
+\tl_new:N \l__chemmacros_thermod_exponent_default_tl
+\tl_set:Nn \l__chemmacros_thermod_exponent_default_tl { \standardstate }
+\tl_new:N \l__chemmacros_thermod_delta_tl
+\tl_new:N \l__chemmacros_thermod_delta_default_tl
+\tl_set:Nn \l__chemmacros_thermod_delta_default_tl { \changestate }
+
+\bool_new:N \l__chemmacros_renewstate_bool
+\bool_new:N \l__chemmacros_state_overwrite_error_bool
+
+\keys_define:nn { chemmacros }
+ {
+ State / subscript .choice: ,
+ State / subscript / left .code:n =
+ { \tl_set:Nn \l__chemmacros_thermod_subscript_left_tl { true } } ,
+ State / subscript / right .code:n =
+ { \tl_set:Nn \l__chemmacros_thermod_subscript_left_tl { false } } ,
+ State / exponent .tl_set:N =
+ \l__chemmacros_thermod_exponent_tl ,
+ State / delta .tl_set:N =
+ \l__chemmacros_thermod_delta_tl ,
+ State / unit .tl_set:N =
+ \l__chemmacros_thermod_unit_tl ,
+ setnewstate / subscript-left .tl_set:N =
+ \l__chemmacros_thermod_subscript_left_default_tl ,
+ setnewstate / subscript .tl_set:N =
+ \l__chemmacros_thermod_subscript_default_tl ,
+ setnewstate / exponent .tl_set:N =
+ \l__chemmacros_thermod_exponent_default_tl ,
+ setnewstate / delta .tl_set:N =
+ \l__chemmacros_thermod_delta_default_tl
+ }
+
+% \NewChemState{<name>}[<keyval>]{<symbol>}{<unit>}
+\NewDocumentCommand \NewChemState { omO{}mm }
+ {
+ \bool_set_false:N \l__chemmacros_renewstate_bool
+ \bool_set_true:N \l__chemmacros_state_overwrite_error_bool
+ \__chemmacros_setnewstate_reset:
+ \IfNoValueTF { #1 }
+ { \chemmacros_define_state:nnnn { #3 } { #2 } { #4 } { #5 } }
+ {
+ \msg_warning:nn { chemmacros } { state-syntax }
+ \chemmacros_define_state:nnnn { #1#3 } { #2 } { #4 } { #5 }
+ }
+ }
+% \DeclareChemState{<name>}[<keyval>]{<symbol>}{<unit>}
+\NewDocumentCommand \DeclareChemState { omO{}mm }
+ {
+ \bool_set_false:N \l__chemmacros_renewstate_bool
+ \bool_set_false:N \l__chemmacros_state_overwrite_error_bool
+ \__chemmacros_setnewstate_reset:
+ \IfNoValueTF { #1 }
+ { \chemmacros_define_state:nnnn { #3 } { #2 } { #4 } { #5 } }
+ {
+ \msg_warning:nn { chemmacros } { state-syntax }
+ \chemmacros_define_state:nnnn { #1#3 } { #2 } { #4 } { #5 }
+ }
+ }
+% \RenewChemState{<name>}[<keyval>]{<symbol>}{<unit>}
+\NewDocumentCommand \RenewChemState { omO{}mm }
+ {
+ \bool_set_true:N \l__chemmacros_renewstate_bool
+ \bool_set_true:N \l__chemmacros_state_overwrite_error_bool
+ \__chemmacros_setnewstate_reset:
+ \IfNoValueTF { #1 }
+ { \chemmacros_define_state:nnnn { #3 } { #2 } { #4 } { #5 } }
+ {
+ \msg_warning:nn { chemmacros } { state-syntax }
+ \chemmacros_define_state:nnnn { #1#3 } { #2 } { #4 } { #5 }
+ }
+ }
+% TODO
+\cs_set_protected:Npn \setnewstate
+ {
+ \msg_warning:nnnn { chemmacros } { command-deprecated }
+ { \setnewstate } { \NewChemState }
+ \NewChemState
+ }
+\cs_set_protected:Npn \renewstate
+ {
+ \msg_warning:nnnn { chemmacros } { command-deprecated }
+ { \renewstate } { \RenewChemState }
+ \RenewChemState
+ }
+
+\cs_new_protected:Npn \__chemmacros_setnewstate_reset:
+ {
+ \tl_set:Nn \l__chemmacros_thermod_subscript_left_default_tl { true }
+ \tl_clear:N \l__chemmacros_thermod_subscript_default_tl
+ \tl_set:Nn \l__chemmacros_thermod_exponent_default_tl { \standardstate }
+ \tl_set:Nn \l__chemmacros_thermod_delta_default_tl { \changestate }
+ }
+
+\cs_new_protected:Npn \chemmacros_define_state:nnnn #1#2#3#4
+ {
+ \keys_set:nn { chemmacros / setnewstate } { #1 }
+ \chemmacros_if_is_cs:nTF { #2 }
+ { \__chemmacros_set_state:xnn { \cs_to_str:N #2 } { #3 } { #4 } }
+ {
+ \msg_warning:nn { chemmacros } { state-syntax }
+ \__chemmacros_set_state:nnn { #2 } { #3 } { #4 }
+ }
+ }
+
+\cs_new_protected:Npn \__chemmacros_set_state:nnn #1#2#3
+ {
+ \bool_if:NT \l__chemmacros_state_overwrite_error_bool
+ {
+ \bool_if:NTF \l__chemmacros_renewstate_bool
+ {
+ \cs_if_exist:cF { #1 }
+ { \msg_error:nnx { chemmacros } { nenew-state } { #1 } }
+ }
+ {
+ \cs_if_exist:cT { #1 }
+ { \msg_error:nnx { chemmacros } { new-state } { #1 } }
+ }
+ }
+ \cs_undefine:c { chemmacros_ #1 _reset: }
+ \cs_undefine:c { c__chemmacros_ #1 _subscript_tl }
+ \cs_undefine:c { c__chemmacros_ #1 _exponent_tl }
+ \cs_undefine:c { c__chemmacros_ #1 _delta_tl }
+ \cs_undefine:c { c__chemmacros_ #1 _left_tl }
+ \cs_undefine:c { c__chemmacros_ #1 _unit_tl }
+ \cs_undefine:c { #1 }
+ \cs_undefine:c { #1 _aux_i:n }
+ \cs_undefine:c { #1 _aux_ii:n }
+ \cs_undefine:c { #1 _aux_iii:n }
+ \group_begin:
+ \tl_const:cV
+ { c__chemmacros_ #1 _subscript_tl }
+ \l__chemmacros_thermod_subscript_default_tl
+ \tl_const:cV
+ { c__chemmacros_ #1 _exponent_tl }
+ \l__chemmacros_thermod_exponent_default_tl
+ \tl_const:cV
+ { c__chemmacros_ #1 _delta_tl }
+ \l__chemmacros_thermod_delta_default_tl
+ \tl_const:cV
+ { c__chemmacros_ #1 _left_tl }
+ \l__chemmacros_thermod_subscript_left_default_tl
+ \tl_const:cn
+ { c__chemmacros_ #1 _unit_tl }
+ { #3 }
+ \cs_new_protected:cpn {chemmacros_ #1 _reset: }
+ {
+ \tl_set_eq:Nc
+ \l__chemmacros_thermod_subscript_tl
+ { c__chemmacros_ #1 _subscript_tl }
+ \tl_set_eq:Nc
+ \l__chemmacros_thermod_exponent_tl
+ { c__chemmacros_ #1 _exponent_tl }
+ \tl_set_eq:Nc
+ \l__chemmacros_thermod_delta_tl
+ { c__chemmacros_ #1 _delta_tl }
+ \tl_set_eq:Nc
+ \l__chemmacros_thermod_subscript_left_tl
+ { c__chemmacros_ #1 _left_tl }
+ \tl_set_eq:Nc
+ \l__chemmacros_thermod_unit_tl
+ { c__chemmacros_ #1 _unit_tl }
+ }
+ \cs_new_protected:cpn { #1 }
+ {
+ \use:c {chemmacros_ #1 _reset: }
+ \peek_meaning:NTF [
+ { \tl_use:c { #1 _aux_i:n } }
+ {
+ \peek_meaning:NTF (
+ { \tl_use:c { #1 _aux_ii:n } }
+ { \tl_use:c { #1 _aux_iii:n } }
+ }
+ }
+ \cs_new_protected:cpn { #1 _aux_i:n } [##1]
+ {
+ \keys_set:nn { chemmacros / State } { ##1 }
+ \peek_meaning:NTF (
+ { \tl_use:c { #1 _aux_ii:n } }
+ { \tl_use:c { #1 _aux_iii:n } }
+ }
+ \cs_new_protected:cpn { #1 _aux_ii:n } (##1)
+ {
+ \tl_set:Nn \l__chemmacros_thermod_subscript_tl { ##1 }
+ \tl_use:c { #1 _aux_iii:n }
+ }
+ \cs_new_protected:cpn { #1 _aux_iii:n } ##1
+ {
+ \ensuremath
+ {
+ \tl_if_eq:VnTF
+ \l__chemmacros_thermod_subscript_left_tl { true }
+ {
+ \chemmacros_state:xnV
+ {
+ subscript-left = true ,
+ exponent =
+ { \exp_not:V \l__chemmacros_thermod_exponent_tl } ,
+ delta =
+ { \exp_not:V \l__chemmacros_thermod_delta_tl }
+ }
+ { #2 }
+ }
+ {
+ \chemmacros_state:xnV
+ {
+ subscript-left = false ,
+ exponent =
+ { \exp_not:V \l__chemmacros_thermod_exponent_tl } ,
+ delta =
+ { \exp_not:V \l__chemmacros_thermod_delta_tl }
+ }
+ { #2 }
+ }
+ \l__chemmacros_thermod_subscript_tl
+ =
+ \exp_args:NnV \SI { ##1 } \l__chemmacros_thermod_unit_tl
+ }
+ }
+ \group_end:
+ \ignorespaces
+ }
+\cs_generate_variant:Nn \__chemmacros_set_state:nnn { x }
+
+% predefined:
+\NewChemState \Enthalpy {H} {\kilo\joule\per\mole}
+\NewChemState \Entropy [ delta=false, subscript-left=false ]
+ {S} {\joule\per\kelvin\per\mole}
+\NewChemState \Gibbs {G} {\kilo\joule\per\mole}
+
+% --------------------------------------------------------------------------
+% Newman projections
+\fp_new:N \l__chemmacros_newman_rel_angle_fp
+\fp_zero:N \l__chemmacros_newman_rel_angle_fp
+\fp_new:N \l__chemmacros_newman_tmp_angle_fp
+\fp_new:N \l__chemmacros_newman_abs_angle_fp
+\fp_zero:N \l__chemmacros_newman_abs_angle_fp
+\fp_new:N \l__chemmacros_newman_scale_fp
+\fp_set:Nn \l__chemmacros_newman_scale_fp { 1 }
+\fp_new:N \l__chemmacros_newman_x_fp
+\fp_new:N \l__chemmacros_newman_y_fp
+
+\tl_new:N \l__chemmacros_newman_tikz_ring_tl
+\tl_new:N \l__chemmacros_newman_tikz_front_tl
+\tl_new:N \l__chemmacros_newman_tikz_back_tl
+
+\bool_new:N \l__chemmacros_newman_tikz_back_bool
+
+\keys_define:nn { chemmacros / newman }
+ {
+ ring .tl_set:N = \l__chemmacros_newman_tikz_ring_tl ,
+ atoms .tl_set:N = \l__chemmacros_newman_tikz_front_tl ,
+ back-atoms .code:n =
+ {
+ \bool_set_true:N \l__chemmacros_newman_tikz_back_bool
+ \tl_set:Nn \l__chemmacros_newman_tikz_back_tl { #1 }
+ } ,
+ scale .fp_set:N = \l__chemmacros_newman_scale_fp ,
+ scale .default:n = 1 ,
+ angle .fp_set:N = \l__chemmacros_newman_abs_angle_fp ,
+ angle .default:n = 0
+ }
+
+% \newman[<keyval>](<angle>){<1>,<2>,<3>,<4>,<5>,<6>}
+\NewDocumentCommand \newman { o d() > { \SplitArgument { 5 } { , } } m }
+ {
+ \group_begin:
+ \IfNoValueF { #1 } { \keys_set:nn { chemmacros / newman } { #1 } }
+ \IfNoValueTF { #2 }
+ { \chemmacros_newman_atoms:nnnnnnn { } #3 }
+ { \chemmacros_newman_atoms:nnnnnnn { #2 } #3 }
+ \group_end:
+ }
+
+% place atoms:
+% #1: angle
+% #2 - #7: atoms
+\cs_new_protected:Npn \chemmacros_newman_atoms:nnnnnnn #1#2#3#4#5#6#7
+ {
+ \tl_if_blank:nTF { #1 }
+ {
+ \fp_set_eq:NN
+ \l__chemmacros_newman_rel_angle_fp
+ \l__chemmacros_newman_abs_angle_fp
+ }
+ { \fp_set:Nn \l__chemmacros_newman_rel_angle_fp { #1 } }
+ \chemmacros_tikz_picture:xn
+ {
+ scale = \fp_to_tl:N \l__chemmacros_newman_scale_fp ,
+ chemmacros_newman_atom_front / .style =
+ {
+ inner~sep=0pt,
+ outer~sep=0pt,
+ \tl_use:N \l__chemmacros_newman_tikz_front_tl
+ },
+ chemmacros_newman_atom_back / .style =
+ {
+ inner~sep=0pt,
+ outer~sep=0pt,
+ \bool_if:NTF \l__chemmacros_newman_tikz_back_bool
+ { \tl_use:N \l__chemmacros_newman_tikz_back_tl }
+ { \tl_use:N \l__chemmacros_newman_tikz_front_tl }
+ }
+ }
+ {
+ \chemmacros_tikz_draw:f
+ { \tl_use:N \l__chemmacros_newman_tikz_ring_tl }
+ (0pt,0pt) circle (\fp_to_dim:N \l__chemmacros_newman_scale_fp * 15) ;
+ \chemmacros_newman_back_node:nn
+ { 30 }
+ { \IfNoValueF { #6 } { #6 } }
+ \chemmacros_newman_back_node:nf
+ { 150 }
+ { \IfNoValueF { #7 } { #7 } }
+ \chemmacros_newman_back_node:nf
+ { 270 }
+ { \IfNoValueF { #5 } { #5 } }
+ \chemmacros_newman_front_node:nf
+ { 90 }
+ { \IfNoValueF { #2 } { #2 } }
+ \chemmacros_newman_front_node:nf
+ { 210 }
+ { \IfNoValueF { #3 } { #3 } }
+ \chemmacros_newman_front_node:nf
+ { 330 }
+ { \IfNoValueF { #4 } { #4 } }
+ }
+ }
+
+% provide cartesian coordiantes from polar coordinates
+% #1: fp variable for x
+% #2: fp variable for y
+% #3: angle
+% #4: radius
+\cs_new_protected:Npn \chemmacros_polar_to_cartesian:NNnn #1#2#3#4
+ {
+ \fp_set:Nn #1 { #4 * cos( #3 / 180 * pi ) }% x
+ \fp_set:Nn #2 { #4 * sin( #3 / 180 * pi ) }% y
+ }
+
+% place back nodes
+\cs_new_protected:Npn \chemmacros_newman_back_node:nn #1#2
+ {
+ \group_begin:
+ \fp_add:Nn \l__chemmacros_newman_rel_angle_fp { #1 }
+ \chemmacros_polar_to_cartesian:NNnn
+ \l__chemmacros_newman_x_fp
+ \l__chemmacros_newman_y_fp
+ { \l__chemmacros_newman_rel_angle_fp }
+ { \l__chemmacros_newman_scale_fp }
+ \chemmacros_tikz_draw:f
+ { \tl_use:N \l__chemmacros_newman_tikz_ring_tl }
+ (
+ 15 * \fp_to_dim:N \l__chemmacros_newman_x_fp ,
+ 15 * \fp_to_dim:N \l__chemmacros_newman_y_fp
+ )
+ --
+ (
+ 30 * \fp_to_dim:N \l__chemmacros_newman_x_fp ,
+ 30 * \fp_to_dim:N \l__chemmacros_newman_y_fp
+ ) ;
+ \chemmacros_polar_to_cartesian:NNnn
+ \l__chemmacros_newman_x_fp
+ \l__chemmacros_newman_y_fp
+ { \l__chemmacros_newman_rel_angle_fp }
+ { \l__chemmacros_newman_scale_fp }
+ \chemmacros_tikz_node:f
+ {
+ chemmacros_newman_atom_back,
+ anchor = -180 + \fp_to_int:N \l__chemmacros_newman_rel_angle_fp
+ }
+ at
+ (
+ 31 * \fp_to_dim:N \l__chemmacros_newman_x_fp ,
+ 31 * \fp_to_dim:N \l__chemmacros_newman_y_fp
+ )
+ { #2 } ;
+ \group_end:
+ }
+\cs_generate_variant:Nn \chemmacros_newman_back_node:nn { nf }
+
+% place front nodes:
+\cs_new_protected:Npn \chemmacros_newman_front_node:nn #1#2
+ {
+ \chemmacros_polar_to_cartesian:NNnn
+ \l__chemmacros_newman_x_fp
+ \l__chemmacros_newman_y_fp
+ { #1 }
+ { \l__chemmacros_newman_scale_fp }
+ \chemmacros_tikz_draw:f
+ { \tl_use:N \l__chemmacros_newman_tikz_ring_tl }
+ (0pt,0pt) -- ++
+ (
+ 30 * \fp_to_dim:N \l__chemmacros_newman_x_fp ,
+ 30 * \fp_to_dim:N \l__chemmacros_newman_y_fp
+ ) ;
+ \chemmacros_polar_to_cartesian:NNnn
+ \l__chemmacros_newman_x_fp
+ \l__chemmacros_newman_y_fp
+ { #1 }
+ { \l__chemmacros_newman_scale_fp }
+ \chemmacros_tikz_node:f
+ { chemmacros_newman_atom_front, anchor = -180 + #1 }
+ at
+ (
+ 31 * \fp_to_dim:N \l__chemmacros_newman_x_fp ,
+ 31 * \fp_to_dim:N \l__chemmacros_newman_y_fp
+ )
+ { #2 } ;
+ }
+\cs_generate_variant:Nn \chemmacros_newman_front_node:nn { nf }
+
+% --------------------------------------------------------------------------
+% \orbital[<keyval>]{<type>}
+% variables:
+\bool_new:N \l__chemmacros_orbital_type_s_bool
+\bool_new:N \l__chemmacros_orbital_type_p_bool
+\bool_new:N \l__chemmacros_orbital_type_sp_bool
+\bool_new:N \l__chemmacros_orbital_type_sptwo_bool
+\bool_new:N \l__chemmacros_orbital_type_spthree_bool
+\bool_new:N \l__chemmacros_orbital_s_phase_bool
+\bool_set_true:N \l__chemmacros_orbital_s_phase_bool
+\bool_new:N \l__chemmacros_orbital_p_phase_bool
+\bool_set_true:N \l__chemmacros_orbital_p_phase_bool
+\bool_new:N \l__chemmacros_orbital_sp_phase_bool
+\bool_set_true:N \l__chemmacros_orbital_sp_phase_bool
+\bool_new:N \l__chemmacros_orbital_sptwo_phase_bool
+\bool_set_true:N \l__chemmacros_orbital_sptwo_phase_bool
+\bool_new:N \l__chemmacros_orbital_spthree_phase_bool
+\bool_set_true:N \l__chemmacros_orbital_spthree_phase_bool
+\bool_new:N \l__chemmacros_orbital_p_half_bool
+\bool_new:N \l__chemmacros_orbital_overlay_bool
+\bool_new:N \l__chemmacros_orbital_opacity_bool
+
+\tl_new:N \l__chemmacros_orbital_s_color_tl
+\tl_set:Nn \l__chemmacros_orbital_s_color_tl { black }
+\tl_new:N \l__chemmacros_orbital_s_phase_color_tl
+\tl_new:N \l__chemmacros_orbital_p_color_tl
+\tl_set:Nn \l__chemmacros_orbital_p_color_tl { black }
+\tl_new:N \l__chemmacros_orbital_p_pphase_color_tl
+\tl_new:N \l__chemmacros_orbital_p_mphase_color_tl
+\tl_new:N \l__chemmacros_orbital_sp_color_tl
+\tl_set:Nn \l__chemmacros_orbital_sp_color_tl { black }
+\tl_new:N \l__chemmacros_orbital_sp_pphase_color_tl
+\tl_new:N \l__chemmacros_orbital_sp_mphase_color_tl
+\tl_new:N \l__chemmacros_orbital_sptwo_color_tl
+\tl_set:Nn \l__chemmacros_orbital_sptwo_color_tl { black }
+\tl_new:N \l__chemmacros_orbital_sptwo_pphase_color_tl
+\tl_new:N \l__chemmacros_orbital_sptwo_mphase_color_tl
+\tl_new:N \l__chemmacros_orbital_spthree_color_tl
+\tl_set:Nn \l__chemmacros_orbital_spthree_color_tl { black }
+\tl_new:N \l__chemmacros_orbital_spthree_pphase_color_tl
+\tl_new:N \l__chemmacros_orbital_spthree_mphase_color_tl
+\tl_new:N \l__chemmacros_orbital_s_scale_tl
+\tl_set:Nn \l__chemmacros_orbital_s_scale_tl { 1 }
+\tl_new:N \l__chemmacros_orbital_p_scale_tl
+\tl_set:Nn \l__chemmacros_orbital_p_scale_tl { 1 }
+\tl_new:N \l__chemmacros_orbital_sp_scale_tl
+\tl_set:Nn \l__chemmacros_orbital_sp_scale_tl { 1 }
+\tl_new:N \l__chemmacros_orbital_sptwo_scale_tl
+\tl_set:Nn \l__chemmacros_orbital_sptwo_scale_tl { 1 }
+\tl_new:N \l__chemmacros_orbital_spthree_scale_tl
+\tl_set:Nn \l__chemmacros_orbital_spthree_scale_tl { 1 }
+
+\fp_new:N \l__chemmacros_orbital_angle_fp
+\fp_set:Nn \l__chemmacros_orbital_angle_fp { 90 }
+\fp_new:N \l__chemmacros_orbital_opacity_fp
+\fp_set:Nn \l__chemmacros_orbital_opacity_fp { 0.5 }
+
+\cs_new:Npn \__chemmacros_orbital_options:
+ {
+ \__chemmacros_orbital_overlay: , \__chemmacros_orbital_opacity: ,
+ inner~sep=0 , outer~sep=0 , line~width=.2pt ,
+ rotate = { \fp_use:N \l__chemmacros_orbital_angle_fp - 90 } ,
+ baseline ,
+ minimum~size = 0
+ }
+
+\cs_new:Npn \__chemmacros_orbital_overlay:
+ { \bool_if:NT \l__chemmacros_orbital_overlay_bool { overlay } }
+
+\cs_new:Npn \__chemmacros_orbital_opacity:
+ {
+ \bool_if:NT \l__chemmacros_orbital_opacity_bool
+ { opacity = { \fp_use:N \l__chemmacros_orbital_opacity_fp } }
+ }
+
+% --------------------------------------------------------------------------
+% s-orbitals
+\cs_new_protected:Npn \__chemmacros_orbital_type_s:
+ {
+ \bool_set_true:N \l__chemmacros_orbital_type_s_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_p_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_sp_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_sptwo_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_spthree_bool
+ }
+
+\keys_define:nn { chemmacros / orbital / s }
+ {
+ phase .choice: ,
+ phase / + .code:n =
+ { \bool_set_true:N \l__chemmacros_orbital_s_phase_bool } ,
+ phase / - .code:n =
+ { \bool_set_false:N \l__chemmacros_orbital_s_phase_bool } ,
+ scale .tl_set:N = \l__chemmacros_orbital_s_scale_tl ,
+ color .tl_set:N = \l__chemmacros_orbital_s_color_tl
+ }
+
+\cs_new_protected:Npn \__chemmacros_orbital_s_draw:n #1
+ {
+ \keys_set:nn { chemmacros / orbital / s } { #1 }
+ \bool_if:NTF \l__chemmacros_orbital_s_phase_bool
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_s_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_s_phase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_s_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_s_phase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_s_color_tl ! 90 }
+ }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_s_phase_color_tl
+ { black ! 5 }
+ }
+ \chemmacros_tikz_picture:xn{ \__chemmacros_orbital_options: }
+ {
+ \chemmacros_tikz_shade:f
+ { ball~color = \l__chemmacros_orbital_s_phase_color_tl }
+ (0pt,0pt) circle (\l__chemmacros_orbital_s_scale_tl * .6em) ;
+ }
+ }
+
+% --------------------------------------------------------------------------
+% p-orbitals
+\cs_new_protected:Npn \__chemmacros_orbital_type_p:
+ {
+ \bool_set_false:N \l__chemmacros_orbital_type_s_bool
+ \bool_set_true:N \l__chemmacros_orbital_type_p_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_sp_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_sptwo_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_spthree_bool
+ }
+
+\keys_define:nn { chemmacros / orbital / p }
+ {
+ phase .choice: ,
+ phase / + .code:n =
+ { \bool_set_true:N \l__chemmacros_orbital_p_phase_bool } ,
+ phase / - .code:n =
+ { \bool_set_false:N \l__chemmacros_orbital_p_phase_bool } ,
+ scale .tl_set:N = \l__chemmacros_orbital_p_scale_tl ,
+ angle .fp_set:N = \l__chemmacros_orbital_angle_fp ,
+ color .tl_set:N = \l__chemmacros_orbital_p_color_tl ,
+ half .bool_set:N = \l__chemmacros_orbital_p_half_bool ,
+ half .default:n = true
+ }
+
+\cs_new_protected:Npn \__chemmacros_orbital_p_draw:n #1
+ {
+ \keys_set:nn { chemmacros / orbital / p } { #1 }
+ \bool_if:NTF \l__chemmacros_orbital_p_phase_bool
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_p_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_p_pphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_p_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_p_pphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_p_color_tl ! 90 }
+ }
+ \tl_set:Nn \l__chemmacros_orbital_p_mphase_color_tl
+ { black ! 5 }
+
+ }
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_p_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_p_mphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_p_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_p_mphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_p_color_tl ! 90 }
+ }
+ \tl_set:Nn \l__chemmacros_orbital_p_pphase_color_tl
+ { black ! 5 }
+ }
+ \chemmacros_tikz_picture:xn { \__chemmacros_orbital_options: }
+ {
+ \chemmacros_tikz_shadedraw:f
+ {
+ draw = \l__chemmacros_orbital_p_pphase_color_tl ,
+ ball~color = \l__chemmacros_orbital_p_pphase_color_tl
+ }
+ (0pt,0pt) .. controls ++
+ (
+ - \l__chemmacros_orbital_p_scale_tl * 2em ,
+ \l__chemmacros_orbital_p_scale_tl * 2em
+ )
+ and ++
+ (
+ \l__chemmacros_orbital_p_scale_tl * 2em ,
+ \l__chemmacros_orbital_p_scale_tl * 2em
+ )
+ .. (0pt,0pt);
+ \bool_if:NF \l__chemmacros_orbital_p_half_bool
+ {
+ \chemmacros_tikz_shadedraw:f
+ {
+ draw = \l__chemmacros_orbital_p_mphase_color_tl ,
+ ball~color = \l__chemmacros_orbital_p_mphase_color_tl
+ }
+ (0pt,0pt) .. controls ++
+ (
+ - \l__chemmacros_orbital_p_scale_tl * 2em ,
+ - \l__chemmacros_orbital_p_scale_tl * 2em
+ )
+ and ++
+ (
+ \l__chemmacros_orbital_p_scale_tl * 2em ,
+ - \l__chemmacros_orbital_p_scale_tl * 2em
+ )
+ .. (0pt,0pt);
+ }
+ }
+ }
+
+% --------------------------------------------------------------------------
+% sp-orbitals
+\cs_new_protected:Npn \__chemmacros_orbital_type_sp:
+ {
+ \bool_set_false:N \l__chemmacros_orbital_type_s_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_p_bool
+ \bool_set_true:N \l__chemmacros_orbital_type_sp_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_sptwo_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_spthree_bool
+ }
+
+\keys_define:nn { chemmacros / orbital / sp }
+ {
+ phase .choice: ,
+ phase / + .code:n =
+ { \bool_set_true:N \l__chemmacros_orbital_sp_phase_bool } ,
+ phase / - .code:n =
+ { \bool_set_false:N \l__chemmacros_orbital_sp_phase_bool } ,
+ scale .tl_set:N = \l__chemmacros_orbital_sp_scale_tl ,
+ angle .fp_set:N = \l__chemmacros_orbital_angle_fp ,
+ color .tl_set:N = \l__chemmacros_orbital_sp_color_tl
+ }
+
+\cs_new_protected:Npn \__chemmacros_orbital_sp_draw:n #1
+ {
+ \keys_set:nn { chemmacros / orbital / sp } { #1 }
+ \bool_if:NTF \l__chemmacros_orbital_sp_phase_bool
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_sp_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_sp_pphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_sp_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_sp_pphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_sp_color_tl ! 90 }
+ }
+ \tl_set:Nn \l__chemmacros_orbital_sp_mphase_color_tl
+ { black ! 5 }
+
+ }
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_sp_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_sp_mphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_sp_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_sp_mphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_sp_color_tl ! 90 }
+ }
+ \tl_set:Nn \l__chemmacros_orbital_sp_pphase_color_tl
+ { black ! 5 }
+ }
+ \chemmacros_tikz_picture:xn { \__chemmacros_orbital_options: }
+ {
+ \chemmacros_tikz_shadedraw:f
+ {
+ draw = \l__chemmacros_orbital_sp_pphase_color_tl ,
+ ball~color = \l__chemmacros_orbital_sp_pphase_color_tl
+ }
+ (0pt,0pt) .. controls ++
+ (
+ - \l__chemmacros_orbital_sp_scale_tl * 2em ,
+ \l__chemmacros_orbital_sp_scale_tl * 2em
+ )
+ and ++
+ (
+ \l__chemmacros_orbital_sp_scale_tl * 2em ,
+ \l__chemmacros_orbital_sp_scale_tl * 2em
+ )
+ .. (0pt,0pt);
+ \chemmacros_tikz_shadedraw:f
+ {
+ draw = \l__chemmacros_orbital_sp_mphase_color_tl ,
+ ball~color = \l__chemmacros_orbital_sp_mphase_color_tl
+ }
+ (0pt,0pt) .. controls ++
+ (
+ - \l__chemmacros_orbital_sp_scale_tl * .6em ,
+ - \l__chemmacros_orbital_sp_scale_tl * .6em
+ )
+ and ++
+ (
+ \l__chemmacros_orbital_sp_scale_tl * .6em ,
+ - \l__chemmacros_orbital_sp_scale_tl * .6em
+ )
+ .. (0pt,0pt);
+ }
+ }
+
+% --------------------------------------------------------------------------
+% sp2-orbitals
+\cs_new_protected:Npn \__chemmacros_orbital_type_sptwo:
+ {
+ \bool_set_false:N \l__chemmacros_orbital_type_s_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_p_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_sp_bool
+ \bool_set_true:N \l__chemmacros_orbital_type_sptwo_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_spthree_bool
+ }
+
+\keys_define:nn { chemmacros / orbital / sp2 }
+ {
+ phase .choice: ,
+ phase / + .code:n =
+ { \bool_set_true:N \l__chemmacros_orbital_sptwo_phase_bool } ,
+ phase / - .code:n =
+ { \bool_set_false:N \l__chemmacros_orbital_sptwo_phase_bool } ,
+ scale .tl_set:N = \l__chemmacros_orbital_sptwo_scale_tl ,
+ angle .fp_set:N = \l__chemmacros_orbital_angle_fp ,
+ color .tl_set:N = \l__chemmacros_orbital_sptwo_color_tl
+ }
+
+\cs_new_protected:Npn \__chemmacros_orbital_sptwo_draw:n #1
+ {
+ \keys_set:nn { chemmacros / orbital / sp2 } { #1 }
+ \bool_if:NTF \l__chemmacros_orbital_sptwo_phase_bool
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_sptwo_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_sptwo_pphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_sptwo_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_sptwo_pphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_sptwo_color_tl ! 90 }
+ }
+ \tl_set:Nn \l__chemmacros_orbital_sptwo_mphase_color_tl
+ { black ! 5 }
+
+ }
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_sptwo_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_sptwo_mphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_sptwo_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_sptwo_mphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_sptwo_color_tl ! 90 }
+ }
+ \tl_set:Nn \l__chemmacros_orbital_sptwo_pphase_color_tl
+ { black ! 5 }
+ }
+ \chemmacros_tikz_picture:xn { \__chemmacros_orbital_options: }
+ {
+ \chemmacros_tikz_shadedraw:f
+ {
+ draw = \l__chemmacros_orbital_sptwo_pphase_color_tl ,
+ ball~color = \l__chemmacros_orbital_sptwo_pphase_color_tl
+ }
+ (0pt,0pt) .. controls ++
+ (
+ - \l__chemmacros_orbital_sptwo_scale_tl * 2em ,
+ \l__chemmacros_orbital_sptwo_scale_tl * 2em
+ )
+ and ++
+ (
+ \l__chemmacros_orbital_sptwo_scale_tl * 2em ,
+ \l__chemmacros_orbital_sptwo_scale_tl * 2em
+ )
+ .. (0pt,0pt);
+ \chemmacros_tikz_shadedraw:f
+ {
+ draw = \l__chemmacros_orbital_sptwo_mphase_color_tl ,
+ ball~color = \l__chemmacros_orbital_sptwo_mphase_color_tl
+ }
+ (0pt,0pt) .. controls ++
+ (
+ - \l__chemmacros_orbital_sptwo_scale_tl * .8em ,
+ - \l__chemmacros_orbital_sptwo_scale_tl * .8em
+ )
+ and ++
+ (
+ \l__chemmacros_orbital_sptwo_scale_tl * .8em ,
+ - \l__chemmacros_orbital_sptwo_scale_tl * .8em
+ )
+ .. (0pt,0pt);
+ }
+ }
+
+% --------------------------------------------------------------------------
+% sp3-orbitals
+\cs_new_protected:Npn \__chemmacros_orbital_type_spthree:
+ {
+ \bool_set_false:N \l__chemmacros_orbital_type_s_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_p_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_sp_bool
+ \bool_set_false:N \l__chemmacros_orbital_type_sptwo_bool
+ \bool_set_true:N \l__chemmacros_orbital_type_spthree_bool
+ }
+
+\keys_define:nn { chemmacros / orbital / sp3 }
+ {
+ phase .choice: ,
+ phase / + .code:n =
+ { \bool_set_true:N \l__chemmacros_orbital_spthree_phase_bool } ,
+ phase / - .code:n =
+ { \bool_set_false:N \l__chemmacros_orbital_spthree_phase_bool } ,
+ scale .tl_set:N = \l__chemmacros_orbital_spthree_scale_tl ,
+ angle .fp_set:N = \l__chemmacros_orbital_angle_fp ,
+ color .tl_set:N = \l__chemmacros_orbital_spthree_color_tl
+ }
+
+\cs_new_protected:Npn \__chemmacros_orbital_spthree_draw:n #1
+ {
+ \keys_set:nn { chemmacros / orbital / sp3 } { #1 }
+ \bool_if:NTF \l__chemmacros_orbital_spthree_phase_bool
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_spthree_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_spthree_pphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_spthree_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_spthree_pphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_spthree_color_tl ! 90 }
+ }
+ \tl_set:Nn \l__chemmacros_orbital_spthree_mphase_color_tl
+ { black ! 5 }
+
+ }
+ {
+ \tl_if_in:NnTF \l__chemmacros_orbital_spthree_color_tl { ! }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_spthree_mphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_spthree_color_tl }
+ }
+ {
+ \tl_set:Nn \l__chemmacros_orbital_spthree_mphase_color_tl
+ { \tl_use:N \l__chemmacros_orbital_spthree_color_tl ! 90 }
+ }
+ \tl_set:Nn \l__chemmacros_orbital_spthree_pphase_color_tl
+ { black ! 5 }
+ }
+ \chemmacros_tikz_picture:xn { \__chemmacros_orbital_options: }
+ {
+ \chemmacros_tikz_shadedraw:f
+ {
+ draw = \l__chemmacros_orbital_spthree_pphase_color_tl ,
+ ball~color = \l__chemmacros_orbital_spthree_pphase_color_tl
+ }
+ (0pt,0pt) .. controls ++
+ (
+ - \l__chemmacros_orbital_spthree_scale_tl * 2em ,
+ \l__chemmacros_orbital_spthree_scale_tl * 2em
+ )
+ and ++
+ (
+ \l__chemmacros_orbital_spthree_scale_tl * 2em ,
+ \l__chemmacros_orbital_spthree_scale_tl * 2em
+ )
+ .. (0pt,0pt);
+ \chemmacros_tikz_shadedraw:f
+ {
+ draw = \l__chemmacros_orbital_spthree_mphase_color_tl ,
+ ball~color = \l__chemmacros_orbital_spthree_mphase_color_tl
+ }
+ (0pt,0pt) .. controls ++
+ (
+ - \l__chemmacros_orbital_spthree_scale_tl * 1em ,
+ - \l__chemmacros_orbital_spthree_scale_tl * 1em
+ )
+ and ++
+ (
+ \l__chemmacros_orbital_spthree_scale_tl * 1em ,
+ - \l__chemmacros_orbital_spthree_scale_tl * 1em
+ )
+ .. (0pt,0pt);
+ }
+ }
+
+% --------------------------------------------------------------------------
+% main command
+\keys_define:nn { chemmacros / orbital }
+ {
+ overlay .bool_set:N = \l__chemmacros_orbital_overlay_bool ,
+ overlay .default:n = true ,
+ opacity .code:n =
+ {
+ \fp_compare:nTF { #1 = 1 }
+ { \bool_set_false:N \l__chemmacros_orbital_opacity_bool }
+ { \bool_set_true:N \l__chemmacros_orbital_opacity_bool }
+ \fp_set:Nn \l__chemmacros_orbital_opacity_fp { #1 }
+ }
+ }
+
+\keys_define:nn { chemmacros / orbital / type }
+ {
+ s .code:n = { \__chemmacros_orbital_type_s: } ,
+ p .code:n = { \__chemmacros_orbital_type_p: } ,
+ sp .code:n = { \__chemmacros_orbital_type_sp: } ,
+ sp2 .code:n = { \__chemmacros_orbital_type_sptwo: } ,
+ sp3 .code:n = { \__chemmacros_orbital_type_spthree: }
+ }
+
+\cs_new_protected:Npn \chemmacros_orbital:n #1
+ {
+ \bool_if:NT \l__chemmacros_orbital_type_s_bool
+ { \__chemmacros_orbital_s_draw:n { #1 } }
+ \bool_if:NT \l__chemmacros_orbital_type_p_bool
+ { \__chemmacros_orbital_p_draw:n { #1 } }
+ \bool_if:NT \l__chemmacros_orbital_type_sp_bool
+ { \__chemmacros_orbital_sp_draw:n { #1 } }
+ \bool_if:NT \l__chemmacros_orbital_type_sptwo_bool
+ { \__chemmacros_orbital_sptwo_draw:n { #1 } }
+ \bool_if:NT \l__chemmacros_orbital_type_spthree_bool
+ { \__chemmacros_orbital_spthree_draw:n { #1 } }
+ }
+
+\NewDocumentCommand \orbital { o m }
+ {
+ \group_begin:
+ \keys_set:nn { chemmacros / orbital / type } { #2 }
+ \IfNoValueTF { #1 }
+ { \chemmacros_orbital:n { } }
+ { \chemmacros_orbital:n { #1 } }
+ \group_end:
+ }
+
+% --------------------------------------------------------------------------
+% arrow tips for electron movement
+\dim_new:N \l__chemmacros_el_length_dim
+
+% full tip for pairs
+\pgfarrowsdeclare { el } { el }
+ {
+ \dim_set:Nn \l__chemmacros_el_length_dim
+ { 2.5pt + 2.5\pgflinewidth }
+ \pgfarrowsleftextend { -\l__chemmacros_el_length_dim }
+ \pgfarrowsrightextend { .5\pgflinewidth }
+ }
+ {
+ \dim_set:Nn \l__chemmacros_el_length_dim
+ { 2.5pt + 2.5\pgflinewidth }
+ \pgfsetdash {} { 0pt }
+ \pgfsetroundjoin
+ \pgfsetroundcap
+ \pgfpathmoveto { \pgfpoint { 0pt } { 0pt } }
+ \pgfpathlineto
+ {
+ \pgfpoint
+ { -\l__chemmacros_el_length_dim }
+ { .3\l__chemmacros_el_length_dim }
+ }
+ \pgfpathlineto
+ { \pgfpoint { -.5\l__chemmacros_el_length_dim } { 0pt } }
+ \pgfpathlineto
+ {
+ \pgfpoint
+ { -\l__chemmacros_el_length_dim }
+ { -.3\l__chemmacros_el_length_dim }
+ }
+ \pgfpathlineto { \pgfpoint { 0pt } { 0pt } }
+ \pgfusepathqfillstroke
+ }
+
+% half tip on the left
+\pgfarrowsdeclare { left~el } { left~el }
+ {
+ \dim_set:Nn \l__chemmacros_el_length_dim
+ { 2.5pt + 2.5\pgflinewidth }
+ \pgfarrowsleftextend { -\l__chemmacros_el_length_dim }
+ \pgfarrowsrightextend { .5\pgflinewidth }
+ }
+ {
+ \dim_set:Nn \l__chemmacros_el_length_dim
+ { 2.5pt + 2.5\pgflinewidth }
+ \pgfsetdash {} { 0pt }
+ \pgfsetroundjoin
+ \pgfsetroundcap
+ \pgfpathmoveto { \pgfpoint { 0pt } { 0pt } }
+ \pgfpathlineto
+ {
+ \pgfpoint
+ { -\l__chemmacros_el_length_dim }
+ { .3\l__chemmacros_el_length_dim }
+ }
+ \pgfpathlineto { \pgfpoint { -.5\l__chemmacros_el_length_dim } { 0pt } }
+ \pgfpathlineto { \pgfpoint { 0pt } { 0pt } }
+ \pgfusepathqfillstroke
+ }
+
+% half tip in the right
+\pgfarrowsdeclare { right~el } { right~el }
+ {
+ \dim_set:Nn \l__chemmacros_el_length_dim
+ { 2.5pt + 2.5\pgflinewidth }
+ \pgfarrowsleftextend { -\l__chemmacros_el_length_dim }
+ \pgfarrowsrightextend { .5\pgflinewidth }
+ }
+ {
+ \dim_set:Nn \l__chemmacros_el_length_dim
+ { 2.5pt + 2.5\pgflinewidth }
+ \pgfsetdash {} { 0pt }
+ \pgfsetroundjoin
+ \pgfsetroundcap
+ \pgfpathmoveto { \pgfpoint { 0pt } { 0pt } }
+ \pgfpathlineto
+ {
+ \pgfpoint
+ { -\l__chemmacros_el_length_dim }
+ { -.3\l__chemmacros_el_length_dim }
+ }
+ \pgfpathlineto { \pgfpoint { -.5\l__chemmacros_el_length_dim } { 0pt } }
+ \pgfpathlineto { \pgfpoint { 0pt } { 0pt } }
+ \pgfusepathqfillstroke
+ }
+
+% --------------------------------------------------------------------------
+% setup
+\NewDocumentCommand \chemsetup { o m }
+ {
+ \IfNoValueTF { #1 }
+ { \keys_set:nn { chemmacros } { #2 } }
+ {
+ \tl_if_eq:nnTF { #1 } { chemformula }
+ { \setchemformula { #2 } }
+ { \keys_set:nn { chemmacros / #1 } { #2 } }
+ }
+ \ignorespaces
+ }
+
+
+% --------------------------------------------------------------------------
+% hyperref support
+% ?? unsure about adding IUPAC commands
+\AfterPackage* { hyperref }
+ {
+ \pdfstringdefDisableCommands
+ {
+ % \cs_set:Npn \- { - } % maybe not a good idea...
+ \cs_set:Npn \| { }
+ \cs_set:Npn \pH { pH }
+ \cs_set:Npn \pOH { pOH }
+ \cs_set:Npn \iupac #1 { #1 }
+ \cs_set:Npn \cip #1 { (#1) }
+ \cs_set:Npn \cis { cis }
+ \cs_set:Npn \trans { trans }
+ \cs_set:Npn \tert { tert }
+ \cs_set:Npn \ortho { o }
+ \cs_set:Npn \meta { m }
+ \cs_set:Npn \para { p }
+ \cs_set:Npn \syn { syn }
+ \cs_set:Npn \anti { anti }
+ }
+ }
+
+% --------------------------------------------------------------------------
+% language support -- provided through `translations'
+% equilibrium constants:
+\DeclareTranslationFallback {K-acid} {\mathrm{a}}
+\DeclareTranslation{German} {K-acid} {\mathrm{s}}
+\DeclareTranslation{Dutch} {K-acid} {\mathrm{z}}
+
+\DeclareTranslationFallback {K-base} {\mathrm{b}}
+
+\DeclareTranslationFallback {K-water} {\mathrm{w}}
+
+% phases:
+\DeclareTranslation{German}{phase-sld}{ f }
+\DeclareTranslation{German}{phase-lqd}{ f{}l }
+% list of reactions:
+\DeclareTranslationFallback {list-of-reactions} { List~ of~ reactions }
+\DeclareTranslation{English} {list-of-reactions} { List~ of~ reactions }
+\DeclareTranslation{German} {list-of-reactions} { Reaktionsverzeichnis }
+\DeclareTranslation{Italian} {list-of-reactions} { Elenco~ delle~ reazioni }
+\DeclareTranslation{French} {list-of-reactions} { Table~ des~ r\'eactions }
+\DeclareTranslation{Dutch} {list-of-reactions} { Lijst~ van~ reacties }
+%
+\DeclareTranslationFallback {reaction} { Reaction }
+\DeclareTranslation{English} {reaction} { Reaction }
+\DeclareTranslation{German} {reaction} { Reaktion }
+\DeclareTranslation{Italian} {reaction} { Reazione }
+\DeclareTranslation{French} {reaction} { R\'eaction }
+\DeclareTranslation{Dutch} {reaction} { Reactie }
+
+\tl_set:Nn \l__chemmacros_reaction_lorname_tl
+ { \chemmacros_translate:n {reaction} }
+\tl_set:Nn \reactionlistname
+ { \chemmacros_translate:n {list-of-reactions} }
+
+\tex_endinput:D
+
+% --------------------------------------------------------------------------
+Version history
+2015/08/29 - version 5.0 - integration as v4.7 into v5.0 of chemmacros for
+ backwards compatibility
+ - fix typo in \l_chemformula_formal_charges_bool
+ - remove \tl_to_lowercase:n
+
+% --------------------------------------------------------------------------- %
+% TODO:
+- add d-orbitals
+- make electron movement arrow tips (`el', `left el' and `right el') public
+- phase commands with arguments (see http://texwelt.de/wissen/fragen/9264)
+