letterswitharrows (19jul21)

git-svn-id: svn://tug.org/texlive/trunk@59993 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 18 insertions, 5 deletions

diff --git a/Master/texmf-dist/source/latex/letterswitharrows/letterswitharrows.dtx b/Master/texmf-dist/source/latex/letterswitharrows/letterswitharrows.dtx
index 8d54dd6294f..1b2820bd826 100644
--- a/Master/texmf-dist/source/latex/letterswitharrows/letterswitharrows.dtx
+++ b/Master/texmf-dist/source/latex/letterswitharrows/letterswitharrows.dtx
@@ -54,7 +54,7 @@
 
 % \title{The \pkg{letterswitharrows} package}
 % \author{Max Teegen\\ \href{mailto:tex@jmteegen.eu}{tex@jmteegen.eu}}
-% \date{Released 2020-02-04}
+% \date{Released 2021-07-19}
 
 % \maketitle
 
@@ -140,6 +140,11 @@
 %   If \verb|#3| is \verb|-| if the arrow should point rightwards and empty otherwise.
 % \end{texnote}
 
+% \DescribeOption{linewidth}
+% Specifying \verb|linewidth=<value>| as a package option allows you to adjust the line width of the arrows to adjust for the weigth of the maths font you are using.
+% The default value is \verb|linewidth=0.3|.
+
+
 % \DescribeOption{tweaks}
 % Specifying the \verb|tweaks| option applies per-letter scaling adjustments to some of the single-letter shorthands. This is enabled by default.
 % These are specific to Latin Modern Math and subject to be changed on a whim. If you wish a more stable behaviour specify \verb|tweaks=false|.
@@ -153,7 +158,7 @@
 %    \begin{macrocode}
 \NeedsTeXFormat{LaTeX2e}
 \RequirePackage{expl3}
-\ProvidesExplPackage {letterswitharrows} {2020-02-04} {} {Draw arrows over math letters.}
+\ProvidesExplPackage {letterswitharrows} {2021/07/19} {} {Draw arrows over math letters.}
 \RequirePackage{xparse,l3keys2e,mathtools}
 % TODO: I just use mathtools for mathrlap; replace.
 
@@ -166,6 +171,7 @@
 }
 %    \end{macrocode}
 % The drawing code.
+% \changes{2021/07/10}{2021/07/19}{Implement adjustable linewidth.}
 % \begin{macro}{\__@@_arrow_draw_special:nnn,\__@@_arrow_draw_pgf:nnn,\__@@_arrow_left:nn,\__@@_arrow_right:nn}
 %    \begin{macrocode}
 \cs_new:Nn \__@@_arrow_draw_special:nnn % length, font size, sign
@@ -175,7 +181,7 @@
       q~
       1~J~1~j~
       1~0~0~\dim_to_decimal:n{#3#2pt/10}~0~0~cm~
-      .3~w~
+      \fp_use:c{g_@@_line_width}~w~
       q~
       \dim_to_decimal:n{#3#2pt/10}~0~0~1~0~0~cm~
       1~0~0~1~-1~0~cm~
@@ -184,8 +190,11 @@
       1~0~.25~0~0~-1~c~
       S~
       Q~
+      Q~
+      q~
       0~0~m~
       -1~0~0~1~0~0~cm~
+      \fp_use:c{g_@@_line_width}~w~
       \dim_to_decimal:n{#3#1}~0~l~S~
       Q
     }
@@ -193,7 +202,7 @@
     \tex_special:D {"~
       1~setlinecap~1~setlinejoin~
       1~0~0~\dim_to_decimal:n{#3#2pt/10}~0~0~6~array~astore~concat~
-      .3~setlinewidth~
+      \fp_use:c{g_@@_line_width}~setlinewidth~
       gsave~
       \dim_to_decimal:n{#3#2pt/10}~0~0~1~0~0~6~array~astore~concat~
       1~0~0~1~-1~0~6~array~astore~concat~
@@ -216,7 +225,7 @@
 
 \cs_new:Nn \__@@_arrow_draw_pgf:nnn {
   \begin{pgfpicture}
-    \pgfsetlinewidth{#2pt/30}
+    \pgfsetlinewidth{#2pt*\fp_use:c{g_@@_line_width}/10}
     \pgfsetarrowsstart
       {Computer~Modern~Rightarrow[width=#2pt*2/10,length=#2pt/10,sharp]}
     % \pgfsetarrowsstart{\tl_use:N \g_@@_pgf_arrow_style_tl}
@@ -244,6 +253,7 @@
 % \end{macro}
 
 % The core functions.
+% \changes{2020/05/08}{2020/05/08}{Reset tabskip. Fixes spacing in aligned environments}
 % \begin{macro}{\__@@_arrow_overset_style:Nnncnnn,\__@@_arrow_overset:nnnnn}
 %    \begin{macrocode}
 \cs_new:Npn \__@@_arrow_overset_style:Nnncnnn #1#2#3#4#5#6#7 {
@@ -252,6 +262,7 @@
   \vbox:n {
     \tex_lineskiplimit:D = \maxdimen
     \tex_baselineskip:D = 0pt
+    \tex_tabskip:D = 0pt
     \tex_lineskip:D = \dim_eval:n {\l_tmpa_dim * 3/2 + #7}
     \tex_halign:D { ## \tex_cr:D
       \skip_horizontal:n {\l_tmpa_dim / 2}
@@ -370,6 +381,8 @@
   presets .initial:n = {abc, ABC, cAcBcC},
   tweaks .bool_set:N = \g_@@_tweak_shortcuts_bool,
   tweaks .initial:n = {true},
+  linewidth .fp_set:N = \g_@@_line_width,
+  linewidth .initial:n = {.3},
 }
 \ProcessKeysPackageOptions{letterswitharrows}
 %    \end{macrocode}