macrolist (1aug21)

git-svn-id: svn://tug.org/texlive/trunk@60139 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 23 insertions, 1 deletions

diff --git a/Master/texmf-dist/tex/latex/macrolist/macrolist.sty b/Master/texmf-dist/tex/latex/macrolist/macrolist.sty
index 6d7dd6f5b4a..528a9020719 100644
--- a/Master/texmf-dist/tex/latex/macrolist/macrolist.sty
+++ b/Master/texmf-dist/tex/latex/macrolist/macrolist.sty
@@ -15,7 +15,7 @@
 %% version 2005/12/01 or later.
 
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{macrolist}[2021/07/29 v2.0.0 Create lists of macros and perform operations on them]
+\ProvidesPackage{macrolist}[2021/07/31 v2.1.0 Create lists of macros and perform operations on them]
 
 \RequirePackage{pgffor}
 
@@ -86,6 +86,28 @@
         \fi
     \fi
 }
+\newcommand{\macrolisteadd}[1]{
+    \macrolist@exists{#1}
+    \def\macrolist@currlist{#1}
+    \macrolist@listeadd
+}
+\newcommand{\macrolist@listeadd}[2][]{
+    \stepcounter{macrolist@list@\macrolist@currlist}
+
+    \if\relax\detokenize{#1}\relax
+        \expandafter\xdef\csname macrolist@list@\macrolist@currlist\macrolistsize{\macrolist@currlist}\endcsname{#2}
+    \else
+        \expandafter\ifnum\csname themacrolist@list@\macrolist@currlist\endcsname=#1
+            \expandafter\gdef\csname macrolist@list@\macrolist@currlist\macrolistsize{\macrolist@currlist}\endcsname{#2}
+        \else
+            \macrolist@inbounds{\macrolist@currlist}{#1}
+            \foreach \macrolist@index in {\macrolistsize{\macrolist@currlist}, ...,\the\numexpr #1+1\relax} {
+                \global\expandafter\let\csname macrolist@list@\macrolist@currlist\macrolist@index\expandafter\endcsname\csname macrolist@list@\macrolist@currlist\the\numexpr\macrolist@index-1\relax\endcsname
+            }
+            \expandafter\xdef\csname macrolist@list@\macrolist@currlist#1\endcsname{#2}
+        \fi
+    \fi
+}
 \newcommand{\macrolistremove}[2]{
     \macrolist@inbounds{#1}{#2}