mathtools (17jan20)

git-svn-id: svn://tug.org/texlive/trunk@53442 c570f23f-e606-0410-a88d-b1316a301751

5 files changed, 40 insertions, 30 deletions

diff --git a/Master/texmf-dist/doc/latex/mathtools/empheq.pdf b/Master/texmf-dist/doc/latex/mathtools/empheq.pdf
index f2430fb326b..f0fbac25124 100644
--- a/Master/texmf-dist/doc/latex/mathtools/empheq.pdf
+++ b/Master/texmf-dist/doc/latex/mathtools/empheq.pdf
diff --git a/Master/texmf-dist/doc/latex/mathtools/mathtools.pdf b/Master/texmf-dist/doc/latex/mathtools/mathtools.pdf
index b0f1857b614..2c468fadbeb 100644
--- a/Master/texmf-dist/doc/latex/mathtools/mathtools.pdf
+++ b/Master/texmf-dist/doc/latex/mathtools/mathtools.pdf
diff --git a/Master/texmf-dist/doc/latex/mathtools/mhsetup.pdf b/Master/texmf-dist/doc/latex/mathtools/mhsetup.pdf
index 1657783ed39..8f608c74aeb 100644
--- a/Master/texmf-dist/doc/latex/mathtools/mhsetup.pdf
+++ b/Master/texmf-dist/doc/latex/mathtools/mhsetup.pdf
diff --git a/Master/texmf-dist/source/latex/mathtools/mathtools.dtx b/Master/texmf-dist/source/latex/mathtools/mathtools.dtx
index c9effb2b782..0a08c4fb26c 100644
--- a/Master/texmf-dist/source/latex/mathtools/mathtools.dtx
+++ b/Master/texmf-dist/source/latex/mathtools/mathtools.dtx
@@ -68,7 +68,7 @@
 \input docstrip.tex
 \Msg{************************************************************************}
 \Msg{* Installation}
-\Msg{* Package: mathtools 2019/07/31 v1.22}
+\Msg{* Package: mathtools 2020/01/17 v1.23}
 \Msg{************************************************************************}
 
 \keepsilent
@@ -131,7 +131,7 @@ and the derived files
 %<*driver>
 \NeedsTeXFormat{LaTeX2e}
 \ProvidesFile{mathtools.drv}%
-  [2019/07/31 v1.22 mathematical typesetting tools]
+  [2020/01/17 v1.23 mathematical typesetting tools]
 \documentclass{ltxdoc}
 \IfFileExists{fourier.sty}{\usepackage{fourier}}{}
 \addtolength\marginparwidth{-25pt}
@@ -573,7 +573,7 @@ colorlinks,
 %    \cramped[\scriptstyle]{x^2} \leftrightarrow {\scriptstyle x^2}
 %  \]
 %  You may be surprised how often the cramped style can be
-%  beneficial yo your output. Take a look at this example:
+%  beneficial to your output. Take a look at this example:
 %  \begin{verbatim}
 %    \begin{quote}
 %      The 2005 Euro\TeX{} conference is held in Abbaye des
@@ -781,7 +781,7 @@ colorlinks,
 %  \label{sec:swapping}
 %
 %  One feature that the plain old \env{equation} environment has that
-%  the \AmS\ environments does not (because of thechnical reasons), is
+%  the \AmS\ environments does not (because of technical reasons), is
 %  the feature of using less space above the equation if the situation
 %  presents itself. The \AmS\ environments cannot do this, but one can
 %  manually, using  
@@ -1547,7 +1547,7 @@ colorlinks,
 %  relation within the first line, then all lines in the display
 %  should be aligned at the left most edge of the first line, and all
 %  subsequent lines should be indented by 2\,em (or if needed by a
-%  smaller amount). That is we are talking about displayes that end up
+%  smaller amount). That is we are talking about displays that end up
 %  looking like this
 %  \begin{align*}
 %    \MoveEqLeft \framebox[10cm][c]{Long first line}\\
@@ -1582,14 +1582,20 @@ colorlinks,
 %          & + \framebox[4cm][c]{ last part}
 %  \end{align*}
 %
+%
+% \noindent\textbf{Caveat regarding \cs{MoveEqLeft}}: If the first
+% part of the equation starts with say \verb|[a]|, \cs{MoveEqLeft} may
+% attempt to eat it! You can prevent this by specifying the optional
+% argument (remember the default is the same as \cs{MoveEqLeft[2]} or
+% by using \cs{MoveEqLeft\{\}}.
+%
 %  \subsubsection{Boxing a single line in an alignment}
 %  
-%  The \texttt{amsmath} package provie the \cs{boxed} macro to box
+%  The \texttt{amsmath} package provides the \cs{boxed} macro to box
 %  material in math mode. But this of course will not work if the box
 %  should cross an alignment point. We provide a macro that
-%  can.\footnote{Note that internally \cs{Aboxed} does use \cs{boxed}.}
-%    \hskip1sp
-%   \marginpar{%
+%  can.\footnote{Note that internally \cs{Aboxed} does use
+%  \cs{boxed}.}  \hskip1sp \marginpar{%
 %    \parbox[b]{\marginparwidth}{\small\sffamily\raggedright
 %      \strut Evolved from a request by\\Merciadri Luca\\
 %       2010/06/28\\on comp.text.tex%
@@ -1737,10 +1743,10 @@ colorlinks,
 %     \shortvdotswithin{=}
 %     & = d
 % \end{align*}
-% Thus \verb?\vdotswithin{=}? create a box corersponding to
-% \verb?{}={}? and typeset a >>$\vdots$<< centered inside it. When doing
-% this as a normal line in an alignment leaves us with excessive space
-% which \verb?\shortvdotswithin{=}? takes care with for us.
+% Thus \verb?\vdotswithin{=}? creates a box corresponding to
+% \verb?{}={}? and typeset a >>$\vdots$<< centered inside it. When
+% doing this as a normal line in an alignment leaves us with excessive
+% space which \verb?\shortvdotswithin{=}? takes care with for us.
 %
 % \verb?\shortvdotswithin{=}? corresponds to
 % \begin{verbatim}
@@ -1820,7 +1826,7 @@ colorlinks,
 %  \cs{shortintertext} and \cs{intertext}.  \tsxPosting{Tobias Weh
 %    \\(referring to a suggestion by Chung-chieh Shan)}{2011/05/29}
 % It can be illustrated using the following example, an interested
-% reader, can apply it with and with out the original \cs{intertext}
+% reader, can apply it with and without the original \cs{intertext}
 % and \cs{shortintertext}.
 % \begin{verbatim}
 % % the original \intertext and \shortintertext
@@ -1838,7 +1844,7 @@ colorlinks,
 % \end{verbatim}
 %
 %  We now fix this internaly for both \cs{intertext} and
-%  \cs{shortintertext}, plus we add the posibility to fine tune
+%  \cs{shortintertext}, plus we add the possibility to fine tune
 %  spacing around these constructions. The original versions can be
 %  brought back using the \texttt{original-x} keys below.
 %  \begin{codesyntax}
@@ -2056,7 +2062,7 @@ colorlinks,
 % aloud. Also we hide the `given' symbol for easy
 % replacement.\footnote{The \cs{nonscript} construction removes the
 % \cs{:} in sub- and superscript, this might not always be
-% peferable. You can use
+% preferable. You can use
 % \cs{mathchoice\{}\cs{:\}\{}\cs{:\}\{}\cs{,\}\{}\cs{,\}} instead of \cs{nonscript}\cs{:}.}
 %
 % Combining with \pkg{etoolbox} it becomes easy to make a function
@@ -2120,9 +2126,10 @@ colorlinks,
 % of arguments. We will consider this for a future release.
 %
 % \medskip\noindent\textbf{Note 2:} If you want to define your own
-% manual scaler macros, it is importent that you besides \cs{foo} also
+% manual scaler macros, it is important that you besides \cs{foo} also
 % defines \cs{fool} and \cs{foor}. When a scaler is specified, in say
-% \cs{abs[\cs{big}]}\marg{arg}, we actually use \cs{bigl} and \cs{bigr}.
+% \cs{abs[\cs{big}]}\marg{arg}, we actually use \cs{bigl} and
+% \cs{bigr}.
 %
 %
 %  \subsubsection{Expert use}
@@ -2131,7 +2138,7 @@ colorlinks,
 %  \cs{DeclarePairedDelimiterX} we make a few changes such that the
 %  auto scaled \cs{left} and \cs{right} fences behave as opening and
 %  closing fences, i.e.\ $\sin(x)$ vs. $\sin\left(x\right)$ (the later
-%  made via \verb|$\sin\left(x\right)$|), notice the gab between
+%  made via \verb|$\sin\left(x\right)$|), notice the gap between
 %  '$\sin$' and '('.  In some special cases it may be useful to be
 %  able to tinker with the behavior.
 %  \begin{codesyntax}
@@ -2160,7 +2167,7 @@ colorlinks,
 %  The two \texttt{nostar...} versions look the same, but they are
 %  not. In most (math) fonts, the first item in this list will be
 %  different from the rest (the superscript sits
-%  higher).\footnote{Interestingly it dod not show up in the font of
+%  higher).\footnote{Interestingly it did not show up in the font of
 %  this manual, which uses the \pkg{fourier} font set.}
 % \begin{verbatim}
 % \mathclose{\rvert}^2\mathclose\rvert^2\rvert^2
@@ -2420,10 +2427,11 @@ colorlinks,
 %
 %  \medskip\noindent \textbf{Caveat:} Italic correction is a
 %  treacherous area. For example any penalties will cancel the italic
-%  correction inserted by \verb|\(| (for an explanation see
-%  \cite{TBT}, section 4.3.3). We have changed Michaels original to
-%  accomodate one specific penalty construction: the \emph{tie}, i.e.,
-%  >>\verb|text~\(|<< will work as expected  (as~of July, 2014).
+%  correction inserted by
+%  \verb|\(| (for an explanation see \cite{TBT}, section 4.3.3). We
+%  have changed Michaels original to accommodate one specific penalty
+%  construction: the \emph{tie}, i.e.,
+%  >>\verb|text~\(|<< will work as expected (as~of July, 2014).
 %
 %  \subsection{Left sub/superscripts}
 %
@@ -2798,7 +2806,7 @@ colorlinks,
 %    \begin{macrocode}
 %<*package>
 \ProvidesPackage{mathtools}%
-  [2019/07/31 v1.22 mathematical typesetting tools]
+  [2020/01/17 v1.23 mathematical typesetting tools]
 %    \end{macrocode}
 % \changes{v1.10}{2011/02/12}{Might as well make sure that we need the
 % latest version of \texttt{mhsetup}}
@@ -3109,8 +3117,10 @@ colorlinks,
 % \changes{v1.12}{2011/06/08}{Added the falsification of manual tag
 % when show manual tags is off and maual tag is not referred to}
 %  \changes{v1.19}{2017/03/31}{Added MH\_ prefix}
+% \changes{v1.23}{2020/01/17}{Added \cs{kern1sp} in a few places to
+% make sure the tag has a non zero width.}
 %    \begin{macrocode}
-              { \global\MH_set_boolean_F:n {manual_tag} }
+              { \global\MH_set_boolean_F:n {manual_tag} \kern1sp } % kern added 2020
               { \MT_prev_tagform:n {#1} }
               \@safe@activesfalse
           }
@@ -3118,7 +3128,7 @@ colorlinks,
       { 
         \@safe@activestrue
         \@ifundefined{MT_r_\df@label}
-          { }
+          { \kern1sp }% kern added 2020
           { \refstepcounter{equation}\MT_prev_tagform:n {#1} }
         \@safe@activesfalse
       }
diff --git a/Master/texmf-dist/tex/latex/mathtools/mathtools.sty b/Master/texmf-dist/tex/latex/mathtools/mathtools.sty
index 1731426d0a8..3c0c57b48b5 100644
--- a/Master/texmf-dist/tex/latex/mathtools/mathtools.sty
+++ b/Master/texmf-dist/tex/latex/mathtools/mathtools.sty
@@ -30,7 +30,7 @@
 %%    mathtools.sty, mathtools.pdf, mathtools.ins, mathtools.drv.
 %% 
 \ProvidesPackage{mathtools}%
-  [2019/07/31 v1.22 mathematical typesetting tools]
+  [2020/01/17 v1.23 mathematical typesetting tools]
 \RequirePackage{keyval,calc}
 \RequirePackage{mhsetup}[2017/03/31]
 \MHInternalSyntaxOn
@@ -195,7 +195,7 @@
           { \MT_prev_tagform:n {#1} }
           { \@safe@activestrue
             \@ifundefined{MT_r_\df@label}
-              { \global\MH_set_boolean_F:n {manual_tag} }
+              { \global\MH_set_boolean_F:n {manual_tag} \kern1sp } % kern added 2020
               { \MT_prev_tagform:n {#1} }
               \@safe@activesfalse
           }
@@ -203,7 +203,7 @@
       {
         \@safe@activestrue
         \@ifundefined{MT_r_\df@label}
-          { }
+          { \kern1sp }% kern added 2020
           { \refstepcounter{equation}\MT_prev_tagform:n {#1} }
         \@safe@activesfalse
       }