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siunitx-compound.dtx
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siunitx-compound.dtx
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% \iffalse meta-comment
%
% File: siunitx-compound.dtx Copyright (C) 2018-2021,2023,2024 Joseph Wright
%
% It may be distributed and/or modified under the conditions of the
% LaTeX Project Public License (LPPL), either version 1.3c of this
% license or (at your option) any later version. The latest version
% of this license is in the file
%
% https://www.latex-project.org/lppl.txt
%
% This file is part of the "siunitx bundle" (The Work in LPPL)
% and all files in that bundle must be distributed together.
%
% The released version of this bundle is available from CTAN.
%
% -----------------------------------------------------------------------
%
% The development version of the bundle can be found at
%
% https://github.com/josephwright/siunitx
%
% for those people who are interested.
%
% -----------------------------------------------------------------------
%
%<*driver>
\documentclass{l3doc}
% Additional commands needed in this source
\ProvideDocumentCommand\email{m}{\href{mailto:#1}{\nolinkurl{#1}}}
\ProvideDocumentCommand\foreign{m}{\textit{#1}}
% The next line is needed so that \GetFileInfo will be able to pick up
% version data
\usepackage{siunitx}
\begin{document}
\DocInput{\jobname.dtx}
\end{document}
%</driver>
% \fi
%
% \GetFileInfo{siunitx.sty}
%
% \title{^^A
% \pkg{siunitx-compound} -- Compound numbers and quantities^^A
% \thanks{This file describes \fileversion,
% last revised \filedate.}^^A
% }
%
% \author{^^A
% Joseph Wright^^A
% \thanks{^^A
% E-mail:
% \email{joseph@texdev.net}^^A
% }^^A
% }
%
% \date{Released \filedate}
%
% \maketitle
%
% \begin{documentation}
%
% \begin{function}{\siunitx_compound_number:n}
% \begin{syntax}
% \cs{siunitx_compound_number:n} \Arg{entries}
% \end{syntax}
% Prints a set of numbers in the \meta{entries}, each of which should
% be given as a \meta{balanced text}. Unlike \cs{siunitx_number_list:nn}, this
% function may semantically take any form.
% \end{function}
%
% \begin{function}{\siunitx_compound_quantity:nn}
% \begin{syntax}
% \cs{siunitx_compound_quantity:nn} \Arg{entries} \Arg{unit}
% \end{syntax}
% Prints a set of quantities in the \meta{entries}, each of which should
% be given as a \meta{balanced text}. Unlike \cs{siunitx_quantity_list:nn}, this
% function may semantically take any form.
% \end{function}
%
% \begin{function}{\siunitx_number_list:nn}
% \begin{syntax}
% \cs{siunitx_number_list:nn} \Arg{entries}
% \end{syntax}
% Prints the list of numbers in the \meta{entries}, each of which should
% be given as a \meta{balanced text}.
% \end{function}
%
% \begin{function}{\siunitx_quantity_list:nn}
% \begin{syntax}
% \cs{siunitx_quantity_list:nn} \Arg{entries} \Arg{unit}
% \end{syntax}
% Prints the list of quantities in the \meta{entries}, each of which should
% be given as a \meta{balanced text}.
% \end{function}
%
% \begin{function}{\siunitx_number_product:n}
% \begin{syntax}
% \cs{siunitx_number_product:n} \Arg{entries}
% \end{syntax}
% Prints the series of numbers in the \meta{entries}, each of which should
% be given as a \meta{balanced text}.
% \end{function}
%
% \begin{function}{\siunitx_quantity_product:nn}
% \begin{syntax}
% \cs{siunitx_number_product:n} \Arg{entries} \Arg{unit}
% \end{syntax}
% Prints the series of quantities in the \meta{entries}, each of which should
% be given as a \meta{balanced text}.
% \end{function}
%
% \begin{function}{\siunitx_number_range:nn}
% \begin{syntax}
% \cs{siunitx_number_range:nn} \Arg{start} \Arg{end}
% \end{syntax}
% Prints the range of numbers from the \meta{start} to the \meta{end}.
% \end{function}
%
% \begin{function}{\siunitx_quantity_range:nnn}
% \begin{syntax}
% \cs{siunitx_number_range:nn} \Arg{start} \Arg{end} \Arg{unit}
% \end{syntax}
% Prints the range of quantities from the \meta{start} to the \meta{end}.
% \end{function}
%
% \begin{variable}
% {
% \l_siunitx_list_separator_pair_tl,
% \l_siunitx_list_separator_tl,
% \l_siunitx_list_separator_final_tl
% }
% Separators for lists of numbers and quantities.
% \end{variable}
%
% \begin{variable}{\l_siunitx_range_phrase_tl}
% Phrase (or similar) used between limits of a range.
% \end{variable}
%
% \begin{function}{compound-boundary-mode}
% \begin{syntax}
% |compound-boundary-mode| = |number|\verb"|"|text|
% \end{syntax}
% Choice which determines whether the material at the start and
% end of a compound quantity are typeset a |number| or as |text|;
% the latter is the standard setting.
% \end{function}
%
% \begin{function}{compound-close-boundary, compound-open-boundary}
% \begin{syntax}
% |compound-close-boundary| = \meta{tokens}\\
% |compound-open-boundary| = \meta{tokens}
% \end{syntax}
% Literals which are inserted at the opening and closing boundary of a compound
% quantity; they are not used when the number of items is one.
% The standard settings set these empty.
% \end{function}
%
% \begin{function}{compound-close-bracket, compound-open-bracket}
% \begin{syntax}
% |compound-close-bracket| = \meta{token} \\
% |compound-open-bracket| = \meta{token}
% \end{syntax}
% Literals containing the tokens inserted at the start and end of a compound
% value when |compounds-units| is set to |bracket|. The standard settings are
% |(| and |)|.
% \end{function}
%
% \begin{function}{compound-exponents}
% \begin{syntax}
% |compound-exponents| = |combine|\verb"|"|combine-bracket|\verb"|"|individual|
% \end{syntax}
% \end{function}
%
% \begin{function}{compound-final-separator}
% \begin{syntax}
% |compound-final-separator| = \meta{text}
% \end{syntax}
% \end{function}
%
% \begin{function}{compound-independent-prefix}
% \begin{syntax}
% |compound-independent-prefix| = |true|\verb"|"|false|
% \end{syntax}
% Switch which determines whether unit prefixes are calculated
% independently when units are repeated. The standard setting is
% |false|.
% \end{function}
%
% \begin{function}{compound-pair-separator}
% \begin{syntax}
% |compound-pair-separator| = \meta{text}
% \end{syntax}
% \end{function}
%
% \begin{function}{compound-separator}
% \begin{syntax}
% |compound-separator| = \meta{text}
% \end{syntax}
% \end{function}
%
% \begin{function}{compound-separator-mode}
% \begin{syntax}
% |compound-separator-mode| = |number|\verb"|"|text|
% \end{syntax}
% Choice which determines whether the separators between components
% of compound quantity are typeset a |number| or as |text|;
% the latter is the standard setting.
% \end{function}
%
% \begin{function}{compound-units}
% \begin{syntax}
% |compound-units| = |bracket|\verb"|"|repeat|\verb"|"|single|
% \end{syntax}
% \end{function}
%
% \begin{function}{list-close-bracket, list-open-bracket}
% \begin{syntax}
% |list-close-bracket| = \meta{token} \\
% |list-open-bracket| = \meta{token}
% \end{syntax}
% Literals containing the tokens inserted at the start and end of a list when
% |list-units| is set to |bracket|. The standard settings are |(| and |)|.
% \end{function}
%
% \begin{function}{list-exponents}
% \begin{syntax}
% |list-exponents| = |combine|\verb"|"|combine-bracket|\verb"|"|individual|
% \end{syntax}
% \end{function}
%
% \begin{function}{list-final-separator}
% \begin{syntax}
% |list-final-separator| = \meta{text}
% \end{syntax}
% \end{function}
%
% \begin{function}{list-independent-prefix}
% \begin{syntax}
% |list-independent-prefix| = |true|\verb"|"|false|
% \end{syntax}
% Switch which determines whether unit prefixes are calculated
% independently when units are repeated. The standard setting is
% |false|.
% \end{function}
%
% \begin{function}{list-pair-separator}
% \begin{syntax}
% |list-pair-separator| = \meta{text}
% \end{syntax}
% \end{function}
%
% \begin{function}{list-separator}
% \begin{syntax}
% |list-separator| = \meta{text}
% \end{syntax}
% \end{function}
%
% \begin{function}{list-units}
% \begin{syntax}
% |list-units| = |bracket|\verb"|"|repeat|\verb"|"|single|
% \end{syntax}
% \end{function}
%
% \begin{function}{product-close-bracket, product-open-bracket}
% \begin{syntax}
% |product-close-bracket| = \meta{token} \\
% |product-open-bracket| = \meta{token}
% \end{syntax}
% Literals containing the tokens inserted at the start and end of a product
% when |product-units| is set to |bracket|. The standard settings are |(|
% and |)|.
% \end{function}
%
% \begin{function}{product-exponents}
% \begin{syntax}
% |product-exponents| = |combine|\verb"|"|combine-bracket|\verb"|"|individual|
% \end{syntax}
% \end{function}
%
% \begin{function}{product-independent-prefix}
% \begin{syntax}
% |product-independent-prefix| = |true|\verb"|"|false|
% \end{syntax}
% Switch which determines whether unit prefixes are calculated
% independently when units are repeated. The standard setting is
% |false|.
% \end{function}
%
% \begin{function}{product-mode}
% \begin{syntax}
% |product-mode| = |phrase|\verb"|"|choice|
% \end{syntax}
% \end{function}
%
% \begin{function}{product-phrase}
% \begin{syntax}
% |product-phrase| = \meta{text}
% \end{syntax}
% \end{function}
%
% \begin{function}{product-symbol}
% \begin{syntax}
% |product-symbol| = \meta{symbol}
% \end{syntax}
% \end{function}
%
% \begin{function}{range-exponents}
% \begin{syntax}
% |range-exponents| = |combine|\verb"|"|combine-bracket|\verb"|"|individual|
% \end{syntax}
% \end{function}
%
% \begin{function}{range-close-bracket, range-open-bracket}
% \begin{syntax}
% |range-close-bracket| = \meta{token} \\
% |range-open-bracket| = \meta{token}
% \end{syntax}
% Literals containing the tokens inserted at the start and end of a range when
% |range-units| is set to |bracket|. The standard settings are |(| and |)|.
% \end{function}
%
% \begin{function}{range-independent-prefix}
% \begin{syntax}
% |range-independent-prefix| = |true|\verb"|"|false|
% \end{syntax}
% Switch which determines whether unit prefixes are calculated
% independently when units are repeated. The standard setting is
% |false|.
% \end{function}
%
% \begin{function}{range-open-phrase}
% \begin{syntax}
% |range-open-phrase| = \meta{text}
% \end{syntax}
% Literal containing the material to be inserted at the start of a range.
% The standard setting is empty.
% \end{function}
%
% \begin{function}{range-phrase}
% \begin{syntax}
% |range-phrase| = \meta{text}
% \end{syntax}
% Literal containing the material to be inserted between the start and end
% of a range. The standard setting contains the word \texttt{to} inside the
% \cs{text} command, along with appropriate spacing commands to allow this
% material to work in both math and text typesetting modes.
% \end{function}
%
% \begin{function}{range-units}
% \begin{syntax}
% |range-units| = |bracket|\verb"|"|repeat|\verb"|"|single|
% \end{syntax}
% \end{function}
%
% \end{documentation}
%
% \begin{implementation}
%
% Start the \pkg{DocStrip} guards.
% \begin{macrocode}
%<*package>
% \end{macrocode}
%
% \section{\pkg{siunitx-compound} implementation}
%
% \begin{macrocode}
\cs_generate_variant:Nn \seq_use:Nnnn { NVVV }
% \end{macrocode}
%
% \subsection{General mechanism}
%
% Identify the internal prefix.
% \begin{macrocode}
%<@@=siunitx_compound>
% \end{macrocode}
%
% Typesetting lists, ranges and products of numbers or quantities has shared
% features which mean they are best handled using a common mechanism. The aim
% therefore is to abstract out enough of the process such that output-specific
% aspects can be left to separate processes.
%
% \begin{variable}{\l_@@_tmp_fp, \l_@@_tmp_seq, \l_@@_tmp_tl}
% Scratch space.
% \begin{macrocode}
\fp_new:N \l_@@_tmp_fp
\seq_new:N \l_@@_tmp_seq
\tl_new:N \l_@@_tmp_tl
% \end{macrocode}
% \end{variable}
%
% \begin{variable}{\l_@@_first_tl}
% The first number in the list in internal format.
% \begin{macrocode}
\tl_new:N \l_@@_first_tl
% \end{macrocode}
% \end{variable}
%
% \begin{variable}{\l_@@_exp_tl}
% For storing the combined exponent, if present.
% \begin{macrocode}
\tl_new:N \l_@@_exp_tl
% \end{macrocode}
% \end{variable}
%
% \begin{variable}{\l_@@_start_tl, \l_@@_end_tl}
% Data on the end-of-list.
% \begin{macrocode}
\tl_new:N \l_@@_start_tl
\tl_new:N \l_@@_end_tl
% \end{macrocode}
% \end{variable}
%
% \begin{variable}{\l_@@_count_int}
% Data on the length-of-list.
% \begin{macrocode}
\int_new:N \l_@@_count_int
% \end{macrocode}
% \end{variable}
%
% \begin{variable}{\l_@@_unit_bool, \l_@@_unit_tl}
% \begin{macrocode}
\bool_new:N \l_@@_unit_bool
\tl_new:N \l_@@_unit_tl
% \end{macrocode}
% \end{variable}
%
% \begin{variable}
% {
% \l_@@_boundary_text_bool ,
% \l_@@_boundary_close_tl ,
% \l_@@_bracket_close_tl ,
% \l_@@_independent_bool ,
% \l_@@_separator_final_tl ,
% \l_@@_separator_pair_tl ,
% \l_@@_boundary_open_tl ,
% \l_@@_bracket_open_tl ,
% \l_@@_separator_tl ,
% \l_@@_separator_text_bool ,
% \l_@@_exp_bracket_bool ,
% \l_@@_exp_combine_bool ,
% \l_@@_unit_bracket_bool ,
% \l_@@_unit_power_bool ,
% \l_@@_unit_repeat_bool ,
% }
% List options.
% \begin{macrocode}
\bool_new:N \l_@@_boundary_text_bool
\bool_new:N \l_@@_exp_bracket_bool
\bool_new:N \l_@@_exp_combine_bool
\bool_new:N \l_@@_separator_text_bool
\bool_new:N \l_@@_unit_bracket_bool
\bool_new:N \l_@@_unit_power_bool
\bool_new:N \l_@@_unit_repeat_bool
\keys_define:nn { siunitx }
{
compound-boundary-mode .choice: ,
compound-boundary-mode / number .code:n =
{ \bool_set_false:N \l_@@_boundary_text_bool } ,
compound-boundary-mode / text .code:n =
{ \bool_set_true:N \l_@@_boundary_text_bool } ,
compound-close-boundary .tl_set:N =
\l_@@_boundary_close_tl ,
compound-close-bracket .tl_set:N =
\l_@@_bracket_close_tl ,
compound-exponents .choice: ,
compound-exponents / combine .code:n =
{
\bool_set_false:N \l_@@_exp_bracket_bool
\bool_set_true:N \l_@@_exp_combine_bool
} ,
compound-exponents / combine-bracket .code:n =
{
\bool_set_true:N \l_@@_exp_bracket_bool
\bool_set_true:N \l_@@_exp_combine_bool
} ,
compound-exponents / individual .code:n =
{
\bool_set_false:N \l_@@_exp_bracket_bool
\bool_set_false:N \l_@@_exp_combine_bool
} ,
compound-final-separator .tl_set:N =
\l_@@_separator_final_tl ,
compound-independent-prefix .bool_set:N =
\l_@@_independent_bool ,
compound-pair-separator .tl_set:N =
\l_@@_separator_pair_tl ,
compound-open-boundary .tl_set:N =
\l_@@_boundary_open_tl ,
compound-open-bracket .tl_set:N =
\l_@@_bracket_open_tl ,
compound-separator .tl_set:N =
\l_@@_separator_tl ,
compound-separator-mode .choice: ,
compound-separator-mode / number .code:n =
{ \bool_set_false:N \l_@@_separator_text_bool } ,
compound-separator-mode / text .code:n =
{ \bool_set_true:N \l_@@_separator_text_bool } ,
compound-units .choice: ,
compound-units / bracket .code:n =
{
\bool_set_true:N \l_@@_unit_bracket_bool
\bool_set_false:N \l_@@_unit_power_bool
\bool_set_false:N \l_@@_unit_repeat_bool
} ,
compound-units / bracket-power .code:n =
{
\bool_set_true:N \l_@@_unit_bracket_bool
\bool_set_true:N \l_@@_unit_power_bool
\bool_set_false:N \l_@@_unit_repeat_bool
} ,
compound-units / power .code:n =
{
\bool_set_false:N \l_@@_unit_bracket_bool
\bool_set_true:N \l_@@_unit_power_bool
\bool_set_false:N \l_@@_unit_repeat_bool
} ,
compound-units / repeat .code:n =
{
\bool_set_false:N \l_@@_unit_bracket_bool
\bool_set_false:N \l_@@_unit_power_bool
\bool_set_true:N \l_@@_unit_repeat_bool
} ,
compound-units / single .code:n =
{
\bool_set_false:N \l_@@_unit_bracket_bool
\bool_set_false:N \l_@@_unit_power_bool
\bool_set_false:N \l_@@_unit_repeat_bool
}
}
% \end{macrocode}
% \end{variable}
%
% \begin{macro}{\siunitx_compound_number:n}
% \begin{macro}{\@@_format:n}
% \begin{macro}{\@@_format:nn}
% \begin{macro}{\@@_format:nnn, \@@_format:een}
% Printing a generic set starts with the question of whether we want to
% extract exponents. If we do, then there is the work to do with extraction.
% Either way, the printing is handed off to a common function. We do a quick
% count up-front to avoid excess work when there is not actually a list.
% \begin{macrocode}
\cs_new_protected:Npn \siunitx_compound_number:n #1
{
\group_begin:
\bool_set_false:N \l_@@_unit_bool
\@@_format:nn {#1} { }
\@@_print:N \siunitx_print_number:e
\group_end:
}
\cs_new_protected:Npn \@@_format:nn #1#2
{
\seq_clear:N \l_@@_tmp_seq
\bool_if:NTF \l_siunitx_number_parse_bool
{
\@@_format:een
{ \tl_head:n {#1} }
{ \tl_tail:n {#1} }
{#2}
}
{ \tl_map_function:nN {#1} \@@_unparsed:n }
}
% \end{macrocode}
% Formatting at a low level needs to know about units and numbers: we have to
% exchange data between the two. Most of the business of handling the units
% is left to a dedicated auxiliary.
% \begin{macrocode}
\cs_new_protected:Npn \@@_format:nnn #1#2#3
{
\tl_if_blank:nTF {#1}
{
\tl_if_blank:nF {#2}
{ \@@_format:nn {#2} {#3} }
}
{ \@@_format_aux:nnn {#1} {#2} {#3} }
}
\cs_generate_variant:Nn \@@_format:nnn { ee }
\cs_new_protected:Npn \@@_format_aux:nnn #1#2#3
{
\siunitx_number_parse:nN {#1} \l_@@_tmp_tl
\bool_if:NTF \l_@@_unit_bool
{ \@@_format_units:nn {#2} {#3} }
{ \siunitx_number_process:NN \l_@@_tmp_tl \l_@@_first_tl }
\bool_lazy_and:nnTF
{ \l_@@_exp_combine_bool }
{ \int_compare_p:nNn { \tl_count:n {#2} } > 0 }
{ \@@_extract_exponents: }
{
\bool_if:NTF \l_@@_unit_bool
{
\tl_set:Nx \l_@@_tmp_tl
{ \siunitx_number_output:NN \l_@@_first_tl \q_nil }
\tl_set:Nx \l_@@_tmp_tl
{ \@@_uncert_bracket:N \l_@@_tmp_tl }
}
{
\tl_set:Nx \l_@@_tmp_tl
{ \siunitx_number_output:N \l_@@_first_tl }
}
\seq_put_right:NV \l_@@_tmp_seq \l_@@_tmp_tl
}
\tl_map_function:nN {#2} \@@_parsed:n
}
% \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\@@_extract_exponents:}
% \begin{macro}{\@@_extract_exponents_auxi:w}
% \begin{macro}{\@@_extract_exponents_auxii:nw}
% \begin{macro}{\@@_extract_exponents_auxiii:nnnnnnn}
% Extracting exponents means dealing with the first entry as a special case.
% After that, apply fixed processing to all other entries, tidying up using
% the number formatter.
% \begin{macrocode}
\cs_new_protected:Npn \@@_extract_exponents:
{
\tl_set:Nx \l_@@_tmp_tl
{ \siunitx_number_output:NN \l_@@_first_tl \q_nil }
\exp_after:wN \@@_extract_exponents_auxi:w
\l_@@_tmp_tl \q_stop
}
\cs_new_protected:Npn \@@_extract_exponents_auxi:w
#1 \q_nil #2 \q_nil #3 \q_nil #4 \q_nil #5 \q_nil #6 \q_nil #7 \q_nil #8
\q_nil #9 \q_stop
{
\@@_extract_exponents_auxii:nw {#1#2#3#4#5#6#7#8} #9 \q_stop
}
\cs_new_protected:Npn \@@_extract_exponents_auxii:nw
#1#2 \q_nil #3 \q_nil #4 \q_stop
{
\seq_put_right:Nn \l_@@_tmp_seq { #1#2 }
\tl_set:Nn \l_@@_exp_tl { #3#4 }
\exp_after:wN \@@_extract_exponents_auxiii:nnnnnnn
\l_@@_first_tl
}
\cs_new_protected:Npn \@@_extract_exponents_auxiii:nnnnnnn
#1#2#3#4#5#6#7
{
\keys_set:nn { siunitx }
{
drop-exponent = true ,
exponent-mode = fixed ,
fixed-exponent = #6 0 #7
}
}
% \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\@@_parsed:n, \@@_parsed_aux:n, \@@_unparsed:n}
% The simple cases for parsing (or not) all entries.
% \begin{macrocode}
\cs_new_protected:Npn \@@_parsed:n #1
{
\tl_if_blank:nF {#1}
{ \@@_parsed_aux:n {#1} }
}
\cs_new_protected:Npn \@@_parsed_aux:n #1
{
\bool_if:NTF \l_@@_unit_bool
{
\siunitx_number_parse:nN {#1} \l_@@_tmp_tl
\siunitx_number_process:NN \l_@@_tmp_tl \l_@@_tmp_tl
\tl_set:Nx \l_@@_tmp_tl
{ \siunitx_number_output:NN \l_@@_tmp_tl \q_nil }
\tl_set:Nx \l_@@_tmp_tl
{ \@@_uncert_bracket:N \l_@@_tmp_tl }
}
{ \siunitx_number_format:nN {#1} \l_@@_tmp_tl }
\seq_put_right:NV \l_@@_tmp_seq \l_@@_tmp_tl
}
\cs_new_protected:Npn \@@_unparsed:n #1
{
\tl_if_blank:nF {#1}
{ \seq_put_right:Nn \l_@@_tmp_seq { \ensuremath {#1} } }
}
% \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@@_format_units:nn}
% \begin{macro}
% {
% \@@_format_combine-exponent:n ,
% \@@_format_extract-exponent:n ,
% \@@_format_input:n
% }
% \begin{macro}
% {
% \@@_format_combine-exponent:nn ,
% \@@_format_extract-exponent:nn
% }
% \begin{macro}
% {
% \@@_format_combine-exponent_aux:n ,
% \@@_format_extract-exponent_aux:n
% }
% \begin{macro}{\@@_extract_exp:nN, \@@_extract_exp:VN}
% \begin{macro}{\@@_extract_exp:nnnnnnnN}
% Actually formatting the units is much the same as is done in
% the quantities module, except that we have to cover the multiplication
% cases too: gets a bit repetitive. Notice that when combining exponents,
% there is no adjustment to the original exponent: we purely need to
% extract it.
% \begin{macrocode}
\cs_new_protected:Npn \@@_format_units:nn #1#2
{
\bool_if:NTF \l_@@_unit_power_bool
{
\use:c { @@_format_ \l_siunitx_quantity_prefix_mode_tl :nn }
{#2} { \tl_count:n {#1} + 1 }
}
{
\use:c { @@_format_ \l_siunitx_quantity_prefix_mode_tl :n } {#2}
}
}
\cs_new_protected:cpx { @@_format_combine-exponent:n } #1
{
\exp_not:c { @@_format_combine-exponent_aux:n }
{
\exp_not:N \siunitx_unit_format_combine_exponent:nnN
{#1}
}
}
\cs_new_protected:cpx { @@_format_combine-exponent:nn } #1#2
{
\exp_not:c { @@_format_combine-exponent_aux:n }
{
\exp_not:N \siunitx_unit_format_multiply_combine_exponent:nnnN
{#1} {#2}
}
}
\cs_new_protected:cpn { @@_format_combine-exponent_aux:n } #1
{
\bool_set_true:N \l_@@_exp_combine_bool
\siunitx_number_process:NN \l_@@_tmp_tl \l_@@_first_tl
\@@_extract_exp:VN
\l_@@_first_tl \l_@@_tmp_fp
#1 \l_@@_tmp_fp \l_@@_unit_tl
}
\cs_new_protected:cpx { @@_format_extract-exponent:n } #1
{
\exp_not:c { @@_format_extract-exponent_aux:n }
{ \exp_not:N \siunitx_unit_format_extract_prefixes:nNN {#1} }
}
\cs_new_protected:cpx { @@_format_extract-exponent:nn } #1#2
{
\exp_not:c { @@_format_extract-exponent_aux:n }
{
\exp_not:N \siunitx_unit_format_multiply_extract_prefixes:nnNN
{#1} {#2}
}
}
\cs_new_protected:cpn { @@_format_extract-exponent_aux:n } #1
{
#1 \l_@@_unit_tl \l_@@_tmp_fp
\tl_set:Nx \l_@@_tmp_tl
{ \siunitx_number_adjust_exponent:Nn \l_@@_tmp_tl \l_@@_tmp_fp }
\siunitx_number_process:NN \l_@@_tmp_tl \l_@@_first_tl
\bool_set_true:N \l_@@_exp_combine_bool
}
\cs_new_protected:Npn \@@_format_input:n #1
{
\siunitx_number_process:NN \l_@@_tmp_tl \l_@@_first_tl
\siunitx_unit_format:nN {#1} \l_@@_unit_tl
}
\cs_new_protected:Npn \@@_format_input:nn #1#2
{
\siunitx_number_process:NN \l_@@_tmp_tl \l_@@_first_tl
\siunitx_unit_format_multiply:nnN {#1} {#2} \l_@@_unit_tl
}
\cs_new_protected:Npn \@@_extract_exp:nN #1#2
{ \@@_extract_exp:nnnnnnnN #1 #2 }
\cs_generate_variant:Nn \@@_extract_exp:nN { V }
\cs_new_protected:Npn \@@_extract_exp:nnnnnnnN #1#2#3#4#5#6#7#8
{ \fp_set:Nn #8 { #6 0 #7 } }
% \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}
% {
% \siunitx_compound_quantity:nn ,
% \@@_quantity_auxi:nn ,
% \@@_quantity_auxii:nn
% }
% For quantities, life is more complex as there are interactions between the
% options for exponents and units. The \cs{c_empty_tl} suppresses any
% leading \texttt{1} if the unit starts \cs{per}; the \pkg{siunitx-print}
% module will skip any printing in this case.
% \begin{macrocode}
\cs_new_protected:Npn \siunitx_compound_quantity:nn #1#2
{
\group_begin:
\bool_lazy_all:nTF
{
{ \l_@@_independent_bool }
{
\str_if_eq_p:Vn
\l_siunitx_quantity_prefix_mode_tl
{ combine-exponent }
}
{ \int_compare_p:nNn { \tl_count:n {#1} } > 1 }
}
{ \@@_quantity_auxi:nn }
{ \@@_quantity_auxii:nn }
{#1} {#2}
\group_end:
}
% \end{macrocode}
% The rather special case where all units are printed independently:
% we just convert to a simple sequence then print.
% \begin{macrocode}
\cs_new_protected:Npn \@@_quantity_auxi:nn #1#2
{
\@@_print_boundary:V \l_@@_boundary_open_tl
\seq_clear:N \l_@@_tmp_seq
\tl_map_inline:nn {#1}
{
\seq_put_right:Nn \l_@@_tmp_seq
{ \siunitx_quantity:nn {##1} {#2} }
}
\seq_use:NVVV \l_@@_tmp_seq
\l_@@_separator_pair_tl
\l_@@_separator_tl
\l_@@_separator_final_tl
\@@_print_boundary:V \l_@@_boundary_close_tl
}
% \end{macrocode}
% The business end for all other cases.
% \begin{macrocode}
\cs_new_protected:Npn \@@_quantity_auxii:nn #1#2
{
\bool_if:NT \l_@@_unit_bracket_bool
{ \bool_set_true:N \l_@@_exp_bracket_bool }
\bool_if:NT \l_@@_unit_repeat_bool
{ \bool_set_false:N \l_@@_exp_combine_bool }
\bool_lazy_or:nnT
{ \l_@@_unit_bracket_bool }
{ ! \l_@@_unit_repeat_bool }
{ \bool_set_false:N \l_siunitx_number_bracket_ambiguous_bool }
\bool_set_true:N \l_@@_unit_bool
\@@_format:nn {#1} {#2}
\bool_if:NF \l_siunitx_number_parse_bool
{ \siunitx_unit_format:nN {#2} \l_@@_unit_tl }
\str_if_eq:VnT \l_siunitx_quantity_prefix_mode_tl { combine-exponent }
{ \tl_clear:N \l_@@_exp_tl }
\bool_if:NTF \l_@@_unit_repeat_bool
{ \@@_print:N \@@_print_quantity:e }
{
\bool_lazy_and:nnTF
{ \l_@@_unit_bracket_bool }
{ \tl_if_empty_p:N \l_@@_exp_tl }
{
\siunitx_print_number:V \l_@@_bracket_open_tl
\@@_print:N \siunitx_print_number:e
\siunitx_print_number:V \l_@@_bracket_close_tl
}
{ \@@_print:N \siunitx_print_number:e }
\@@_print_quantity:n { \c_empty_tl }
}
}
% \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@@_print:N}
% \begin{macro}{\@@_print:nnN, \@@_print:nVN, \@@_print:enN, \@@_print:eeN}
% \begin{macro}{\@@_print:nnnN, \@@_print:ennN}
% \begin{macro}{\@@_print_aux:n}
% \begin{macro}{\@@_print_aux:nn}
% \begin{macro}{\@@_print_quantity:n, \@@_print_quantity:e}
% \begin{macro}
% {
% \@@_print_boundary:n, \@@_print_boundary:V,
% \@@_print_separator:n, \@@_print_separator:V
% }
% We now need to know how many entries there are: the reason we don't use
% \cs{seq_use:Nnnn} is that we want to be able to insert
% \cs{siunitx_print_\dots:n} in a controlled way.
% \begin{macrocode}
\cs_new_protected:Npn \@@_print:N #1
{
\bool_lazy_and:nnTF
{ \l_@@_exp_bracket_bool }
{ ! \tl_if_empty_p:N \l_@@_exp_tl }
{
\@@_print:eeN
{ \exp_not:V \l_@@_bracket_open_tl }
{
\exp_not:V \l_@@_bracket_close_tl
\exp_not:V \l_@@_exp_tl
}
#1
}
{ \@@_print:nVN { } \l_@@_exp_tl #1 }
}
\cs_new_protected:Npn \@@_print:nnN #1#2#3
{
\@@_print:ennN
{ \seq_count:N \l_@@_tmp_seq } {#1} {#2} #3
}
\cs_generate_variant:Nn \@@_print:nnN { nV , e , ee }
% \end{macrocode}
% A rather long auxiliary as we want a way to have the brackets/exponent
% available. The actual flow is simple enough: see how many entries there are
% and print as required. To keep everything generic, we have some slightly
% tricky saving of data to allow everything to go to the mapping.
% \begin{macrocode}
\cs_new_protected:Npn \@@_print:nnnN #1#2#3#4
{
\int_case:nnF {#1}
{
{ 0 } { }
{ 1 }
{
#4
{ \seq_item:Nn \l_@@_tmp_seq { 1 } }
}
{ 2 }
{
\@@_print_boundary:V \l_@@_boundary_open_tl
#4
{
\exp_not:n {#2}
\seq_item:Nn \l_@@_tmp_seq { 1 }
}
\@@_print_separator:V \l_@@_separator_pair_tl
#4
{
\seq_item:Nn \l_@@_tmp_seq { 2 }
\exp_not:n {#3}
}
\@@_print_boundary:V \l_@@_boundary_close_tl
}
}
{
\int_set:Nn \l_@@_count_int {#1}
\tl_set:Nn \l_@@_start_tl {#2}
\tl_set:Nn \l_@@_end_tl {#3}
\cs_set_eq:NN \@@_print_aux:n #4
\@@_print_boundary:V \l_@@_boundary_open_tl
\seq_map_indexed_function:NN
\l_@@_tmp_seq
\@@_print_aux:nn
\@@_print_boundary:V \l_@@_boundary_close_tl
}
}
\cs_generate_variant:Nn \@@_print:nnnN { e }
\cs_new_protected:Npn \@@_print_aux:n #1 { }
\cs_new_protected:Npn \@@_print_aux:nn #1#2
{
\int_case:nnF {#1}
{
{ 1 }
{
\@@_print_aux:n
{
\exp_not:V \l_@@_start_tl
\exp_not:n {#2}
}
\@@_print_separator:V \l_@@_separator_tl
}
{ \l_@@_count_int - 1 }
{
\@@_print_aux:n { \exp_not:n {#2} }
\@@_print_separator:V \l_@@_separator_final_tl
}
{ \l_@@_count_int }
{
\@@_print_aux:n
{
\exp_not:n {#2}
\exp_not:V \l_@@_end_tl
}
}
}
{
\@@_print_aux:n { \exp_not:n {#2} }
\@@_print_separator:V \l_@@_separator_tl
}
}
\cs_new_protected:Npn \@@_print_quantity:n #1
{ \siunitx_quantity_print:nV {#1} \l_@@_unit_tl }
\cs_generate_variant:Nn \@@_print_quantity:n { e }
\cs_new_protected:Npn \@@_print_boundary:n #1
{
\tl_if_blank:nF {#1}
{
\bool_if:NTF \l_@@_boundary_text_bool
{ #1 }
{ \siunitx_print_number:n {#1} }
}