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| -rw-r--r-- | Master/texmf-dist/doc/latex/leftindex/README.md | 29 | ||||
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| -rw-r--r-- | Master/texmf-dist/doc/latex/leftindex/leftindex.tex | 146 | ||||
| -rw-r--r-- | Master/texmf-dist/tex/latex/leftindex/leftindex.sty | 157 | ||||
| -rwxr-xr-x | Master/tlpkg/bin/tlpkg-ctan-check | 2 | ||||
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diff --git a/Master/texmf-dist/doc/latex/leftindex/README.md b/Master/texmf-dist/doc/latex/leftindex/README.md new file mode 100644 index 00000000000..7832b57454c --- /dev/null +++ b/Master/texmf-dist/doc/latex/leftindex/README.md @@ -0,0 +1,29 @@ +leftindex -- left indices with better spacing +-------------------------------------- + +The package leftindex provides commands for typesetting left indices. Unlike +any other similar package I know of, leftindex also indents the left superscript, +providing much better spacing in general. + +---------------------------------------------------------------- +leftindex -- left indices with better spacing +Version: 0.1beta +Maintained by Sebastian Ørsted +E-mail: sorsted@gmail.com +Released under the LaTeX Project Public License v1.3c or later +See http://www.latex-project.org/lppl.txt +---------------------------------------------------------------- + +Copyright (C) 2020 by Sebastian Ørsted <sorsted@gmail.com> + +The package is loaded via \usepackage{leftindex} + +This work 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: + +http://www.latex-project.org/lppl.txt + +This work is "maintained" (as per LPPL maintenance status) by +Sebastian Ørsted.
\ No newline at end of file diff --git a/Master/texmf-dist/doc/latex/leftindex/leftindex.pdf b/Master/texmf-dist/doc/latex/leftindex/leftindex.pdf Binary files differnew file mode 100644 index 00000000000..01950aa9a37 --- /dev/null +++ b/Master/texmf-dist/doc/latex/leftindex/leftindex.pdf diff --git a/Master/texmf-dist/doc/latex/leftindex/leftindex.tex b/Master/texmf-dist/doc/latex/leftindex/leftindex.tex new file mode 100644 index 00000000000..45f21c4c208 --- /dev/null +++ b/Master/texmf-dist/doc/latex/leftindex/leftindex.tex @@ -0,0 +1,146 @@ +\documentclass[a4paper,article,oneside,10pt]{memoir} + +\usepackage[utf8]{inputenc} +\usepackage[T1]{fontenc} +\usepackage{babel} +\usepackage{kpfonts,microtype} + +\usepackage{leftindex,listings,showexpl,xspace} + +\usepackage[hidelinks]{hyperref} + +\frenchspacing + +\newcommand\entrydescription[1]{% + \textlangle\textrm{\textit{#1}}\textrangle +} + +\catcode`<=\active + +\def<#1>{\entrydescription{#1}} + +\lstset{ + language=[LaTeX]TeX, + basicstyle=\ttfamily\small, + commentstyle=\itshape\ttfamily\small, + escapechar=@, + alsoletter=\\, + breaklines=true, + breakindent={0pt}, + captionpos=t, + pos=r, + tabsize=2, + inputencoding=utf8, + extendedchars=true, + explpreset={numbers=none,}, +} + +\newcommand\pkgleftindex{\texttt{leftindex}\xspace} + +\title{\pkgleftindex\ -- left indices with better spacing (v0.1$\beta$)} +\date{\today} +\author{Sebastian \O rsted (\href{mailto:sorsted@gmail.com}{sorsted@gmail.com})} + +\hypersetup{ + pdfauthor={Sebastian \O rsted}, + pdftitle={leftindex -- left indices with better spacing}, +} + +\begin{document} + +\maketitle + +\noindent +The package \pkgleftindex provides commands for typesetting left indices. +Unlike any other similar package I know of, \pkgleftindex also indents the left superscript, providing much better spacing in general: +\[ + \leftindex^a_b{f} + \qquad\text{(compare to $\leftindex[]^a_b{f}$)} + . +\] +As \TeX\ provides no metrics for the indentation of left superscripts, +the only way to accomplish this is to measure the negative indentation of the right subscript and then use that value. +This works well for most symbols, with a few exceptions, which can be dealt with by +supplying a few extra arguments. +The package is a generalization of egreg's excellent code on +\begin{center} + \url{https://tex.stackexchange.com/questions/557655/low-level-command-for-controlling-left-superscript-spacing/} +\end{center} + +\chapter*{The commands} + +The fundamental, user-level command of~\pkgleftindex is called~\lstinline!\leftindex! and has +the syntax +\begin{lstlisting} +\leftindex^{@<left superscript>@}_{@<left subscript>@}{@<symbol>@} +\end{lstlisting} +Both the arguments <left superscript> and <left subscript> +are optional. Let us see it in action: +\begin{LTXexample} +$ \leftindex^a_b {f} $, +$ \leftindex^t {X} $ +$ \leftindex_b {J} $, +$ \leftindex_v^u {\Pi} $, +$ \leftindex{A} $, +\[ + \leftindex^1_0 { \int } + f(x)\, dx +\] +\end{LTXexample} +For the indentaiton of the left superscript, the package always +uses the negative indentation of the right subscript. This yields good results +most of the time, as seen above. However, there are cases where this goes wrong, +the most notable example being the Greek letter~$ \Gamma $ in many fonts (not in Computer Modern, though). Less serious examples arise with letters like $P$ and $L$: +\begin{LTXexample} +$ \Gamma^a_b $ +vs. +$ \leftindex^a_b {\Gamma} $, +$ L^a_b $ +vs. +$ \leftindex^a_b {L} $, +$ P^a_b $ +vs. +$ \leftindex^a_b {P} $ +\end{LTXexample} +To solve this issue, \lstinline!\leftindex! takes two +additional, optional arguments: +\begin{lstlisting} +\leftindex[@<slanting phantom>@][@<height phantom>@] + ^{@<left superscript>@}_{@<left subscript>@}{@<symbol>@} +\end{lstlisting} +The package will then use the <slanting phantom> instead of the <symbol> to calculate the indentation of the superscript. The argument can be left empty, in which +case the left superscript will not be indented at all, which is the right solution for the symbol~$ \Gamma $: +\begin{LTXexample} +$\leftindex[]^a_b {\Gamma}$, +$\leftindex[I]^a_b {L}$, +$\leftindex[I]^a_b {P}$ +\end{LTXexample} +The <slanting phantom> will never be used for calculating the height of the indices. +For this, you can supply a <height phantom>: +\begin{LTXexample} +$\leftindex[][\Bigg|]^a_b{x}$ +\end{LTXexample} +I doubt anyone will ever really need this much in practice, but the option is provided for completeness. + +I provide a more primitive, underlying command with four mandatory arguments: +\begin{lstlisting} +\manualleftindex{@<height phantom>@}{@<slanting phantom>@} + {@<left superscript>@}{@<left subscript>@} +\end{lstlisting} +This one is mainly intended for use in commands and by other packages. +Note that the arguments <height phantom> and <slanting phantom> have +switched places compared to the command~\lstinline!\leftindex!. +This is because <height phantom> is regarded as a ``more important'' +argument than <slanting phantom> from an implementation point of view, +but the user is probably less likely to change it. Therefore, +the user-level command~\lstinline!\leftindex! has <slanting phantom> +before <height phantom>. +Note also that \lstinline!\manualleftindex! does not take a <symbol>; +you will have to write this yourself afterwards: +\begin{LTXexample} +$\manualleftindex{P}{I}{a}{b}$ +vs. +$\manualleftindex{P}{I}{a}{b} P$ +\end{LTXexample} + +\end{document}
\ No newline at end of file diff --git a/Master/texmf-dist/tex/latex/leftindex/leftindex.sty b/Master/texmf-dist/tex/latex/leftindex/leftindex.sty new file mode 100644 index 00000000000..fdd7a6a822b --- /dev/null +++ b/Master/texmf-dist/tex/latex/leftindex/leftindex.sty @@ -0,0 +1,157 @@ +\RequirePackage{xparse,mathtools} +\ProvidesExplPackage{leftindex}{2020/08/25}{0.1beta}{} + +%---------------------------------------------------------------- +% leftindex -- left indices with better spacing +% Version: 0.1beta +% Maintained by Sebastian Ørsted +% E-mail: sorsted@gmail.com +% Released under the LaTeX Project Public License v1.3c or later +% See http://www.latex-project.org/lppl.txt +%---------------------------------------------------------------- + +\DeclareDocumentCommand\manualleftindex { mmmm } +{ + % #1 = height phantom + % #2 = slanting phantom + % #3 = left superscript + % #4 = left subscript + \mathpalette \__leftindex_auxiliary_mathpalette_command:nn { {#1}{#2}{#3}{#4} } +} + +\ExplSyntaxOff + +\DeclareDocumentCommand\leftindex { o o E{^_}{{}{}} m } +{ + % #1 = slanting phantom + % #2 = height phantom + % #3 = left superscript + % #4 = left subscript + % #5 = symbol + \IfValueTF {#1} + { + \IfValueTF{#2} + { + \manualleftindex { #2 } { #1 } { #3 } { #4 } + } + { + \manualleftindex { #5 } { #1 } { #3 } { #4 } + } + } + { + \manualleftindex { #5 } { #5 } { #3 } { #4 } + } + #5 +} + +\ExplSyntaxOn + +\cs_new_protected:Npn\leftindex_kern_horizontal:n#1 +{ + \kern #1 \relax +} + +\cs_new_protected:Npn\leftindex_set_mathsurround_to_zero: +{ + % This is equivalent to "\m@th" + \dim_set:Nn \mathsurround { 0pt } +} + +\cs_new_protected:Npn\__leftindex_auxiliary_mathpalette_command:nn#1#2 +{ + \__leftindex_auxiliary:nnnnn { #1 } #2 +} + +\dim_new:N\l__leftindex_phantom_height_dim + +\box_new:N \l__leftindex_slanting_phantom_with_subscript_box +\dim_new:N \l__leftindex_slanting_phantom_with_subscript_dim + +\box_new:N \l__leftindex_slanting_phantom_with_subscript_without_indentation_box +\dim_new:N \l__leftindex_slanting_phantom_with_subscript_without_indentation_dim + +\dim_new:N \l__leftindex_indentation_of_slanting_phantom_subscript + +\box_new:N \l__leftindex_superscript_temp_box +\dim_new:N \l__leftindex_width_of_superscript_dim + +\box_new:N \l__leftindex_subscript_temp_box +\dim_new:N \l__leftindex_width_of_subscript_dim + +\cs_new_protected:Npn\__leftindex_auxiliary:nnnnn#1#2#3#4#5 +{ + \group_begin: + \hbox_set:Nn \l__leftindex_slanting_phantom_with_subscript_box + { $ #1 #3 \sb{xxxxxx} $ } + \dim_set:Nn \l__leftindex_slanting_phantom_with_subscript_dim + { \box_wd:N \l__leftindex_slanting_phantom_with_subscript_box } + \hbox_set:Nn \l__leftindex_slanting_phantom_with_subscript_without_indentation_box + { $ #1 \hbox:n {$ #1 #3 $} \sb{xxxxxx} $ } + \dim_set:Nn \l__leftindex_slanting_phantom_with_subscript_without_indentation_dim + { \box_wd:N \l__leftindex_slanting_phantom_with_subscript_without_indentation_box } + \dim_set:Nn \l__leftindex_indentation_of_slanting_phantom_subscript + { + \l__leftindex_slanting_phantom_with_subscript_without_indentation_dim + - + \l__leftindex_slanting_phantom_with_subscript_dim + } + \tl_if_blank:nTF { #4 } + { + \dim_zero:N \l__leftindex_width_of_superscript_dim + } + { + \hbox_set:Nn \l__leftindex_superscript_temp_box + { + $ + \leftindex_set_mathsurround_to_zero: + #1 \sp { #4 } + $ + } + \dim_set:Nn \l__leftindex_width_of_superscript_dim + { + \box_wd:N \l__leftindex_superscript_temp_box + - + \l__leftindex_indentation_of_slanting_phantom_subscript + } + } + \tl_if_blank:nTF { #5 } + { + \dim_zero:N \l__leftindex_width_of_subscript_dim + } + { + \hbox_set:Nn \l__leftindex_subscript_temp_box + { + $ + \leftindex_set_mathsurround_to_zero: + #1 \sb { #5 } + $ + } + \dim_set:Nn \l__leftindex_width_of_subscript_dim + { + \box_wd:N \l__leftindex_subscript_temp_box + } + } + \leftindex_kern_horizontal:n + { + \dim_max:nn + { \l__leftindex_width_of_superscript_dim } + { \l__leftindex_width_of_subscript_dim } + } + \mathop{} + \mathopen{ \vphantom { #2 } } + \tl_if_blank:nF { #4 } + { + \sp { + \mathmakebox[0pt][l]{ + \mathmakebox[ \l__leftindex_indentation_of_slanting_phantom_subscript ][r]{ #4 } + } + } + } + \tl_if_blank:nF { #5 } + { + \sb { + \mathmakebox[0pt][r]{ #5 } + } + } + \group_end: +}
\ No newline at end of file diff --git a/Master/tlpkg/bin/tlpkg-ctan-check b/Master/tlpkg/bin/tlpkg-ctan-check index 81168f18bf4..a654fdfb488 100755 --- a/Master/tlpkg/bin/tlpkg-ctan-check +++ b/Master/tlpkg/bin/tlpkg-ctan-check @@ -435,7 +435,7 @@ my @TLP_working = qw( latexmk latexmp latexpand latino-sine-flexione lato layaureo layouts lazylist lccaps lcd lcg lcyw leading leadsheets leaflet - lecturer lectures ledmac leftidx leipzig lengthconvert + lecturer lectures ledmac leftidx leftindex leipzig lengthconvert letltxmacro letterspacing letterswitharrows lettre lettrine levy lewis lexend lexikon lexref lfb lgreek lh lhcyr lhelp diff --git a/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc b/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc index 356143cea70..b35a0d00db7 100644 --- a/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc +++ b/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc @@ -673,6 +673,7 @@ depend leading depend leaflet depend lectures depend leftidx +depend leftindex depend leipzig depend lengthconvert depend lettre diff --git a/Master/tlpkg/tlpsrc/leftindex.tlpsrc b/Master/tlpkg/tlpsrc/leftindex.tlpsrc new file mode 100644 index 00000000000..e69de29bb2d --- /dev/null +++ b/Master/tlpkg/tlpsrc/leftindex.tlpsrc |