easybook (22nov21)

git-svn-id: svn://tug.org/texlive/trunk@61120 c570f23f-e606-0410-a88d-b1316a301751

6 files changed, 91 insertions, 103 deletions

diff --git a/Master/texmf-dist/doc/latex/easybook/easybook.pdf b/Master/texmf-dist/doc/latex/easybook/easybook.pdf
index 2e67d24923e..1746468440f 100644
--- a/Master/texmf-dist/doc/latex/easybook/easybook.pdf
+++ b/Master/texmf-dist/doc/latex/easybook/easybook.pdf
diff --git a/Master/texmf-dist/doc/latex/easybook/easybook.tex b/Master/texmf-dist/doc/latex/easybook/easybook.tex
index df4b4c4fb2f..a385bc26816 100644
--- a/Master/texmf-dist/doc/latex/easybook/easybook.tex
+++ b/Master/texmf-dist/doc/latex/easybook/easybook.tex
@@ -20,8 +20,8 @@
     name            = easybook,
     color-scheme    = blue,
     title           = EASYBOOK 使用手册,
-    version         = v1.40T,
-    date            = 2021/11/20,
+    version         = v1.40U,
+    date            = 2021/11/22,
     authors         = 瞿毅,
     info            = 排版简体中文学位论文和书籍,
     email           = q1jx@foxmail.com,
@@ -305,10 +305,8 @@
   使当前目录标题按照 \code{chapter} 章级别输出。
   \opt{section}\Default!
   使当前目录标题按照 \code{section} 节级别输出。
-  \keybool{multoc}\Default{false}
-  与 \module*{style} 模块的 \option{multoc} 选项具有相同的效果，但是具有优先性且可单独设置不同目录是否多栏排版，栏数默认为双栏，可使用 \option{columns} 更改。
-  \keyval-{columns}{目录栏数}\Default{2}
-  设置目录的栏数，仅在 \keyis-{multoc}{true} 时有效，默认为双栏。
+  \keyval-{multoc}{整数}\Default{2}
+  与 \module*{style} 模块的 \option{multoc} 选项具有相同的效果，但是具有优先性且可单独设置不同类型目录的排版栏数。\meta{整数} 为目录栏数，不指定栏数值则默认为双栏。
   \kvsplit{title}{中文目录标题,英文目录标题}\newline
   用于更改目录的标题，标题之间用一个英文逗号分开，也可以只有一部分，表示中文目录的标题。当设置了英文目录标题时，英文目录标题将会自动加入文档主目录 \cs*{tableofcontents}\parg{} 命令。
   \keyval-{format}{目录标题格式}
@@ -403,8 +401,8 @@
   \end{commands}
   \keyval-{color-all}{HTML颜色代码}\Default
   统一设置主题的各部分颜色，参数是 6 个十六进制数字组成的 \code{HTML} 颜色代码，任意颜色的代码可以在常见的图片处理工具拾色器中查看。
-  \keybool{multoc}\Default{false}
-  开启多栏目录，与节 \ref{sec:document command} 中目录命令的同名选项有相同效果。
+  \keyval-{multoc}{整数}\Default{2}
+  使目录多栏排版，与节 \ref{sec:document command} 中目录命令的同名选项有相同效果。
   \keybool{withpart}\Default{false}
   使章标题跟随每一部分编号，开启新的一部分时章编号从 1 开始，默认不跟随。
   \keychoice{footwith}{part,chapter,page}\Default{chapter}
@@ -490,7 +488,7 @@
 \begin{options}
   \keyval-{line}{数值}\Module{spread}\Default{1.354}
   正文行距因子，C\TeX 原有的行距选项 \option*{linespread} 失效。
-  \keyval-{table}{数值}\Default{1.2}
+  \keyval-{table}{数值}\Default{1.354}
   表格行距因子，对传统表格环境 \env*{tabular}、\env*{tabularx} 以及 \pkg*{tabularray} 宏包的 \env{tblr} 环境生效，同时 \env{tblr} 也自带有 \option*{stretch} 选项设置行距。
   \keyval-{math}{数值}\Default{1.2}
   数学环境的行距因子，包含了 \pkg*{amsmath} 和 \pkg*{mathtools} 宏包提供的公式环境。
diff --git a/Master/texmf-dist/source/latex/easybook/easybook.dtx b/Master/texmf-dist/source/latex/easybook/easybook.dtx
index 302df73e057..637e238152f 100644
--- a/Master/texmf-dist/source/latex/easybook/easybook.dtx
+++ b/Master/texmf-dist/source/latex/easybook/easybook.dtx
@@ -15,7 +15,7 @@
 %<*class>
 \NeedsTeXFormat{LaTeX2e}[2020/10/01]
 \RequirePackage{l3keys2e}
-\ProvidesExplClass{easybook}{2021/11/20}{1.40T}
+\ProvidesExplClass{easybook}{2021/11/22}{1.40U}
   {Typeset Chinese theses or books}
 
 \bool_set_false:N \l__eb_compile_draft_bool
@@ -325,7 +325,7 @@
 %<*package>
 \NeedsTeXFormat{LaTeX2e}[2020/10/01]
 \RequirePackage{l3keys2e,etoolbox}
-\ProvidesExplPackage{easybase}{2021/11/20}{1.40T}
+\ProvidesExplPackage{easybase}{2021/11/22}{1.40U}
   {Typeset Chinese theses or books}
 
 \cs_generate_variant:Nn \dim_set:Nn { NV }
@@ -471,7 +471,6 @@
       }
   }
 
-\bool_new:N \l__eb_toc_multi_column_bool
 \bool_new:N \l__eb_mark_uppercase_bool
 \bool_new:N \l__eb_chap_counter_withpart_bool
 \tl_new:N   \l__eb_foot_counter_parent_choice_tl
@@ -499,10 +498,7 @@
       }
   }
 \cs_new:Npn \eb_msg_unknown_option:n #1
-  {
-    \msg_warning:nnx
-      { easybase } { ignore-#1 } { \l_keys_key_str }
-  }
+  { \msg_warning:nnx { easybase } { ignore-#1 } { \l_keys_key_str } }
 \cs_if_exist:NF \chapter
   {
     \newcounter{chapter}
@@ -515,7 +511,10 @@
     \ctex_after_end_preamble:n
       {
         \NewDocumentCommand{\chapter}{som}
-          {\msg_error:nn { easybase } { no-chapter }}
+          {
+            \msg_error:nn { easybase } { no-chapter }
+            \msg_redirect_name:nnn { easybase } { no-chapter } { none }
+          }
       }
   }
 \msg_new:nnn { easybase } { no-chapter }
@@ -540,8 +539,8 @@
   }
 \cs_new_protected:Npn \eb_package_date_check:nn #1#2
   {
-    \IfPackageAtLeastTF{#1}{#2}
-      {}{\msg_warning:nnn { easybase } { package-old } {#1}}
+    \IfPackageAtLeastTF{#1}{#2}{}
+      {\msg_warning:nnn { easybase } { package-old } {#1}}
   }
 \msg_new:nnn { easybase } { package-old }
   {
@@ -586,8 +585,8 @@
   }
 \ctex_define:nn { style }
   {
-    multoc .bool_set:N    = \l__eb_toc_multi_column_bool,
-    multoc .default:n     = true,
+    multoc .int_set:N     = \l__eb_toc_columns_int,
+    multoc .default:n     = 2,
     withpart .bool_set:N  = \l__eb_chap_counter_withpart_bool,
     withpart .default:n   = true,
     withpart .initial:n   = false,
@@ -1512,16 +1511,15 @@
 \tl_new:N \eb@bitoc@title
 \keys_define:nn { eb/listoc }
   {
-    section .code:n     = \tl_set:Nn \l__eb_toc_type_tl { section },
-    chapter .code:n     = { },
-    article .meta:n     = section,
-    book .meta:n        = chapter,
-    multoc .bool_set:N  = \l__eb_toc_multi_column_bool,
-    multoc .default:n   = true,
-    multoc .initial:n   = false,
-    title .code:n       = \eb_assign_toc_title:n {#1},
-    columns .int_set:N  = \l__eb_toc_columns_int,
-    columns .initial:n  = 2
+    section .code:n   = \tl_set:Nn \l__eb_toc_type_tl { section },
+    chapter .code:n   = { },
+    article .meta:n   = section,
+    book .meta:n      = chapter,
+    multoc .int_set:N = \l__eb_toc_columns_int,
+    multoc .default:n = 2,
+    multoc .initial:n = 1,
+    columns .meta:n   = { multoc = #1 },
+    title .code:n     = \eb_assign_toc_title:n {#1}
   }
 \bool_if:NTF \l__eb_class_book_bool
   { \keys_define:nn { } { eb/listoc .inherit:n = ctex/chapter } }
@@ -1540,14 +1538,8 @@
 \cs_new_protected:Npn \eb_title_mark_intoc:n #1
   {
     \tl_if_eq:NnTF \l__eb_toc_type_tl { chapter }
-      {
-        \bichapter*{#1}{\eb@bitoc@title}
-        \chaptermark{#1}
-      }
-      {
-        \bisection*{#1}{\eb@bitoc@title}
-        \sectionmark{#1}
-      }
+      { \bichapter*{#1}{\eb@bitoc@title} }
+      { \bisection*{#1}{\eb@bitoc@title} }
   }
 \cs_new_protected:Npn \eb_title_mark_notoc:n #1
   {
@@ -1583,7 +1575,7 @@
   }
 \cs_new_protected:Npn \eb_toc_start_multi_column_ext:n #1
   {
-    \bool_if:NTF \l__eb_toc_multi_column_bool
+    \int_compare:nNnTF { \l__eb_toc_columns_int } > { 1 }
       {
         \begin{multicols}{\int_use:N \l__eb_toc_columns_int}
           \@starttoc{#1}
@@ -1728,7 +1720,7 @@
     line .code:n        = \AfterPreamble{\setspread{#1}},
     line .initial:n     = 1.354,
     table .fp_set:N     = \l__eb_spread_table_fp,
-    table .initial:n    = 1.2,
+    table .initial:n    = 1.354,
     math .fp_set:N      = \l__eb_spread_math_fp,
     math .initial:n     = 1.2,
     caption .fp_set:N   = \l__eb_spread_caption_fp,
@@ -1924,6 +1916,11 @@
 \RenewDocumentCommand{\declaretheoremstyle}{O{}mO{}}
   {\eb@declaretheoremsyle@save[#1,#3]{#2}}
 \cs_set_eq:NN \newtheorem \declaretheorem
+\cs_new_protected:Npn \eb_if_thmframe_with_tcolorbox:TF #1#2
+  {
+    \bool_if:NT \l__eb_thmframe_bool
+      { \@ifpackageloaded{tcolorbox}{#1}{#2} }
+  }
 \NewDocumentCommand{\deftheorem}
   {mO{\text_titlecase_first:n {#1}}mD(){tc-theorem}O{}}
   {
@@ -1932,19 +1929,10 @@
       name  = \tl_use:c { c__eb_name_#1_tl },
       style = easy-theorem,#5
       ]
-    \bool_if:NT \l__eb_thmframe_bool
-      {
-        \@ifpackageloaded{tcolorbox}
-          {\tcolorboxenvironment{#1}{#4}}
-          {\msg_warning:nn { easybase } { need-tcolorbox }}
-      }
+    \eb_if_thmframe_with_tcolorbox:TF
+      { \tcolorboxenvironment{#1}{#4} } { }
     \labelformat{#1}{\tl_use:c { c__eb_name_#1_tl }~##1}
   }
-\msg_new:nnn { easybase } { need-tcolorbox }
-  {
-    Now~that~the~thmframe~option~is~true. \\
-    Please~load~the~tcolorbox~macro~package.
-  }
 
 \prop_new:N \l__eb_thmtools_entry_prop
 \clist_const:Nn \c__eb_thmtools_entry_clist
@@ -1994,8 +1982,15 @@
     within        = \bool_if:NT \l__eb_class_book_bool { chapter },
     headformat    = \NAME\NUMBER\NOTE
   }
+\msg_new:nnn { easybase } { need-tcolorbox }
+  {
+    Now~that~the~thmframe~option~is~true. \\
+    Please~load~the~tcolorbox~macro~package.
+  }
 \eb_at_end_preamble:n
   {
+    \eb_if_thmframe_with_tcolorbox:TF { }
+      { \msg_warning:nn { easybase } { need-tcolorbox } }
     \clist_put_right:Nx
     \c__eb_thmtools_entry_clist { notebraces = \l__eb_thm_notebraces_tl }
     \exp_last_unbraced:NNV
@@ -2106,8 +2101,6 @@
       { \exp_args:NV \bibliographystyle \l__eb_bib_otherstyle_tl }
     \tl_if_empty:NF \l__eb_bib_cite_style_tl
       { \exp_args:NV \setcitestyle \l__eb_bib_cite_style_tl }
-    \AtEndEnvironment{thebibliography}
-      {\bool_if:NT \l__eb_toc_multi_column_bool { \end{multicols} }}
     \NewDocumentCommand{\printbibliography}{st+o}
       {
         \group_begin:
@@ -2116,12 +2109,14 @@
         \cs_set_protected:Npn \bibsection
           {
             \eb_title_number_intoc_spec:nn {##2} {##1}
-            \bool_if:NT \l__eb_toc_multi_column_bool
+            \int_compare:nNnT { \l__eb_toc_columns_int } > { 1 }
               { \begin{multicols}{\int_use:N \l__eb_toc_columns_int} }
           }
         \exp_args:NV \bibliography \l__eb_bib_datafile_clist
         \group_end:
       }
+    \AtEndEnvironment{thebibliography}
+      {\int_compare:nNnT { \l__eb_toc_columns_int } > { 1 } { \end{multicols} }}
     \skip_zero:N \bibsep
   }
 \cs_new_protected:Npn \eb_put_biblatex:n #1
@@ -2375,7 +2370,7 @@
   }
 %</package>
 %<*tcolorbox>
-\ProvidesExplFile{eb-tcolorbox.cfg}{2021/11/20}{1.40T}
+\ProvidesExplFile{eb-tcolorbox.cfg}{2021/11/22}{1.40U}
   {Customization of tcolorbox for easybook}
 
 \cs_set_protected:Npn \setexercise #1
diff --git a/Master/texmf-dist/tex/latex/easybook/easybase.sty b/Master/texmf-dist/tex/latex/easybook/easybase.sty
index da95e0d7a5b..67b1a765a4c 100644
--- a/Master/texmf-dist/tex/latex/easybook/easybase.sty
+++ b/Master/texmf-dist/tex/latex/easybook/easybase.sty
@@ -20,7 +20,7 @@
 %% This work has the LPPL maintenance status `maintained'.
 \NeedsTeXFormat{LaTeX2e}[2020/10/01]
 \RequirePackage{l3keys2e,etoolbox}
-\ProvidesExplPackage{easybase}{2021/11/20}{1.40T}
+\ProvidesExplPackage{easybase}{2021/11/22}{1.40U}
   {Typeset Chinese theses or books}
 
 \cs_generate_variant:Nn \dim_set:Nn { NV }
@@ -166,7 +166,6 @@
       }
   }
 
-\bool_new:N \l__eb_toc_multi_column_bool
 \bool_new:N \l__eb_mark_uppercase_bool
 \bool_new:N \l__eb_chap_counter_withpart_bool
 \tl_new:N   \l__eb_foot_counter_parent_choice_tl
@@ -194,10 +193,7 @@
       }
   }
 \cs_new:Npn \eb_msg_unknown_option:n #1
-  {
-    \msg_warning:nnx
-      { easybase } { ignore-#1 } { \l_keys_key_str }
-  }
+  { \msg_warning:nnx { easybase } { ignore-#1 } { \l_keys_key_str } }
 \cs_if_exist:NF \chapter
   {
     \newcounter{chapter}
@@ -210,7 +206,10 @@
     \ctex_after_end_preamble:n
       {
         \NewDocumentCommand{\chapter}{som}
-          {\msg_error:nn { easybase } { no-chapter }}
+          {
+            \msg_error:nn { easybase } { no-chapter }
+            \msg_redirect_name:nnn { easybase } { no-chapter } { none }
+          }
       }
   }
 \msg_new:nnn { easybase } { no-chapter }
@@ -235,8 +234,8 @@
   }
 \cs_new_protected:Npn \eb_package_date_check:nn #1#2
   {
-    \IfPackageAtLeastTF{#1}{#2}
-      {}{\msg_warning:nnn { easybase } { package-old } {#1}}
+    \IfPackageAtLeastTF{#1}{#2}{}
+      {\msg_warning:nnn { easybase } { package-old } {#1}}
   }
 \msg_new:nnn { easybase } { package-old }
   {
@@ -281,8 +280,8 @@
   }
 \ctex_define:nn { style }
   {
-    multoc .bool_set:N    = \l__eb_toc_multi_column_bool,
-    multoc .default:n     = true,
+    multoc .int_set:N     = \l__eb_toc_columns_int,
+    multoc .default:n     = 2,
     withpart .bool_set:N  = \l__eb_chap_counter_withpart_bool,
     withpart .default:n   = true,
     withpart .initial:n   = false,
@@ -1207,16 +1206,15 @@
 \tl_new:N \eb@bitoc@title
 \keys_define:nn { eb/listoc }
   {
-    section .code:n     = \tl_set:Nn \l__eb_toc_type_tl { section },
-    chapter .code:n     = { },
-    article .meta:n     = section,
-    book .meta:n        = chapter,
-    multoc .bool_set:N  = \l__eb_toc_multi_column_bool,
-    multoc .default:n   = true,
-    multoc .initial:n   = false,
-    title .code:n       = \eb_assign_toc_title:n {#1},
-    columns .int_set:N  = \l__eb_toc_columns_int,
-    columns .initial:n  = 2
+    section .code:n   = \tl_set:Nn \l__eb_toc_type_tl { section },
+    chapter .code:n   = { },
+    article .meta:n   = section,
+    book .meta:n      = chapter,
+    multoc .int_set:N = \l__eb_toc_columns_int,
+    multoc .default:n = 2,
+    multoc .initial:n = 1,
+    columns .meta:n   = { multoc = #1 },
+    title .code:n     = \eb_assign_toc_title:n {#1}
   }
 \bool_if:NTF \l__eb_class_book_bool
   { \keys_define:nn { } { eb/listoc .inherit:n = ctex/chapter } }
@@ -1235,14 +1233,8 @@
 \cs_new_protected:Npn \eb_title_mark_intoc:n #1
   {
     \tl_if_eq:NnTF \l__eb_toc_type_tl { chapter }
-      {
-        \bichapter*{#1}{\eb@bitoc@title}
-        \chaptermark{#1}
-      }
-      {
-        \bisection*{#1}{\eb@bitoc@title}
-        \sectionmark{#1}
-      }
+      { \bichapter*{#1}{\eb@bitoc@title} }
+      { \bisection*{#1}{\eb@bitoc@title} }
   }
 \cs_new_protected:Npn \eb_title_mark_notoc:n #1
   {
@@ -1278,7 +1270,7 @@
   }
 \cs_new_protected:Npn \eb_toc_start_multi_column_ext:n #1
   {
-    \bool_if:NTF \l__eb_toc_multi_column_bool
+    \int_compare:nNnTF { \l__eb_toc_columns_int } > { 1 }
       {
         \begin{multicols}{\int_use:N \l__eb_toc_columns_int}
           \@starttoc{#1}
@@ -1423,7 +1415,7 @@
     line .code:n        = \AfterPreamble{\setspread{#1}},
     line .initial:n     = 1.354,
     table .fp_set:N     = \l__eb_spread_table_fp,
-    table .initial:n    = 1.2,
+    table .initial:n    = 1.354,
     math .fp_set:N      = \l__eb_spread_math_fp,
     math .initial:n     = 1.2,
     caption .fp_set:N   = \l__eb_spread_caption_fp,
@@ -1619,6 +1611,11 @@
 \RenewDocumentCommand{\declaretheoremstyle}{O{}mO{}}
   {\eb@declaretheoremsyle@save[#1,#3]{#2}}
 \cs_set_eq:NN \newtheorem \declaretheorem
+\cs_new_protected:Npn \eb_if_thmframe_with_tcolorbox:TF #1#2
+  {
+    \bool_if:NT \l__eb_thmframe_bool
+      { \@ifpackageloaded{tcolorbox}{#1}{#2} }
+  }
 \NewDocumentCommand{\deftheorem}
   {mO{\text_titlecase_first:n {#1}}mD(){tc-theorem}O{}}
   {
@@ -1627,19 +1624,10 @@
       name  = \tl_use:c { c__eb_name_#1_tl },
       style = easy-theorem,#5
       ]
-    \bool_if:NT \l__eb_thmframe_bool
-      {
-        \@ifpackageloaded{tcolorbox}
-          {\tcolorboxenvironment{#1}{#4}}
-          {\msg_warning:nn { easybase } { need-tcolorbox }}
-      }
+    \eb_if_thmframe_with_tcolorbox:TF
+      { \tcolorboxenvironment{#1}{#4} } { }
     \labelformat{#1}{\tl_use:c { c__eb_name_#1_tl }~##1}
   }
-\msg_new:nnn { easybase } { need-tcolorbox }
-  {
-    Now~that~the~thmframe~option~is~true. \\
-    Please~load~the~tcolorbox~macro~package.
-  }
 
 \prop_new:N \l__eb_thmtools_entry_prop
 \clist_const:Nn \c__eb_thmtools_entry_clist
@@ -1689,8 +1677,15 @@
     within        = \bool_if:NT \l__eb_class_book_bool { chapter },
     headformat    = \NAME\NUMBER\NOTE
   }
+\msg_new:nnn { easybase } { need-tcolorbox }
+  {
+    Now~that~the~thmframe~option~is~true. \\
+    Please~load~the~tcolorbox~macro~package.
+  }
 \eb_at_end_preamble:n
   {
+    \eb_if_thmframe_with_tcolorbox:TF { }
+      { \msg_warning:nn { easybase } { need-tcolorbox } }
     \clist_put_right:Nx
     \c__eb_thmtools_entry_clist { notebraces = \l__eb_thm_notebraces_tl }
     \exp_last_unbraced:NNV
@@ -1801,8 +1796,6 @@
       { \exp_args:NV \bibliographystyle \l__eb_bib_otherstyle_tl }
     \tl_if_empty:NF \l__eb_bib_cite_style_tl
       { \exp_args:NV \setcitestyle \l__eb_bib_cite_style_tl }
-    \AtEndEnvironment{thebibliography}
-      {\bool_if:NT \l__eb_toc_multi_column_bool { \end{multicols} }}
     \NewDocumentCommand{\printbibliography}{st+o}
       {
         \group_begin:
@@ -1811,12 +1804,14 @@
         \cs_set_protected:Npn \bibsection
           {
             \eb_title_number_intoc_spec:nn {##2} {##1}
-            \bool_if:NT \l__eb_toc_multi_column_bool
+            \int_compare:nNnT { \l__eb_toc_columns_int } > { 1 }
               { \begin{multicols}{\int_use:N \l__eb_toc_columns_int} }
           }
         \exp_args:NV \bibliography \l__eb_bib_datafile_clist
         \group_end:
       }
+    \AtEndEnvironment{thebibliography}
+      {\int_compare:nNnT { \l__eb_toc_columns_int } > { 1 } { \end{multicols} }}
     \skip_zero:N \bibsep
   }
 \cs_new_protected:Npn \eb_put_biblatex:n #1
diff --git a/Master/texmf-dist/tex/latex/easybook/easybook.cls b/Master/texmf-dist/tex/latex/easybook/easybook.cls
index 63d24b2edd6..4ee88f61921 100644
--- a/Master/texmf-dist/tex/latex/easybook/easybook.cls
+++ b/Master/texmf-dist/tex/latex/easybook/easybook.cls
@@ -20,7 +20,7 @@
 %% This work has the LPPL maintenance status `maintained'.
 \NeedsTeXFormat{LaTeX2e}[2020/10/01]
 \RequirePackage{l3keys2e}
-\ProvidesExplClass{easybook}{2021/11/20}{1.40T}
+\ProvidesExplClass{easybook}{2021/11/22}{1.40U}
   {Typeset Chinese theses or books}
 
 \bool_set_false:N \l__eb_compile_draft_bool
diff --git a/Master/texmf-dist/tex/latex/easybook/eb-tcolorbox.cfg b/Master/texmf-dist/tex/latex/easybook/eb-tcolorbox.cfg
index e2584309959..f349baf2031 100644
--- a/Master/texmf-dist/tex/latex/easybook/eb-tcolorbox.cfg
+++ b/Master/texmf-dist/tex/latex/easybook/eb-tcolorbox.cfg
@@ -18,7 +18,7 @@
 %% LaTeX version 2005/12/01 or later.
 %% 
 %% This work has the LPPL maintenance status `maintained'.
-\ProvidesExplFile{eb-tcolorbox.cfg}{2021/11/20}{1.40T}
+\ProvidesExplFile{eb-tcolorbox.cfg}{2021/11/22}{1.40U}
   {Customization of tcolorbox for easybook}
 
 \cs_set_protected:Npn \setexercise #1