zhlipsum (10apr20)

git-svn-id: svn://tug.org/texlive/trunk@54661 c570f23f-e606-0410-a88d-b1316a301751

11 files changed, 262 insertions, 311 deletions

diff --git a/Master/texmf-dist/doc/latex/zhlipsum/README.md b/Master/texmf-dist/doc/latex/zhlipsum/README.md
index ebbab97309e..be5d29520a8 100644
--- a/Master/texmf-dist/doc/latex/zhlipsum/README.md
+++ b/Master/texmf-dist/doc/latex/zhlipsum/README.md
@@ -36,8 +36,8 @@ To install `zhlipsum`, you can use one of the following methods:
 Contributing
 ------------
 
-[Issues](https://github.com/Stone-Zeng/zhlipsum/issues) and
-[pull requests](https://github.com/Stone-Zeng/zhlipsum/pulls)
+[Issues](https://github.com/stone-zeng/zhlipsum/issues) and
+[pull requests](https://github.com/stone-zeng/zhlipsum/pulls)
 are always welcome.
 
 License
@@ -50,4 +50,4 @@ version.
 
 -----
 
-Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
+Copyright (C) 2017&ndash;2020 by Xiangdong Zeng <xdzeng96@gmail.com>.
diff --git a/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum-en.pdf b/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum-en.pdf
index 2f10ca31910..595b5d88106 100644
--- a/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum-en.pdf
+++ b/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum-en.pdf
diff --git a/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum-en.tex b/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum-en.tex
index 355e31a149c..f43c8e85a30 100644
--- a/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum-en.tex
+++ b/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum-en.tex
@@ -6,7 +6,7 @@
 %%
 %% zhlipsum.dtx
 %% 
-%%     Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+%%     Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 %% 
 %%     This work may be distributed and/or modified under the
 %%     conditions of the LaTeX Project Public License, either
@@ -37,7 +37,8 @@
 \PassOptionsToPackage{scheme=plain, linespread=1.1}{ctex}
 \documentclass{ctxdoc}
 \usepackage{multirow}
-\setCJKmonofont{FangSong}[ItalicFont=KaiTi]
+\setCJKmainfont{Source Han Serif SC}[ItalicFont=Kaiti SC]
+\setCJKmonofont{STFangsong}[ItalicFont=Kaiti SC]
 \hypersetup{%
   pdftitle={zhlipsum: Chinese dummy text},
   pdfauthor={Xiangdong Zeng},
@@ -49,17 +50,15 @@
 }
 \pagestyle{headings}
 % Use `!` for comment in `ctexexam`.
-\makeatletter
 \catcode`!=\active
 \RecustomVerbatimEnvironment{ctexexam}{Verbatim}{%
   frame=single, framesep=10pt,
- gobble=2,
- label=\rule{0pt}{12pt}\textnormal{\bfseries Example \arabic{ctexexam}},
+  gobble=2,
+  label=\rule{0pt}{12pt}\textnormal{\bfseries Example \arabic{ctexexam}},
+  defineactive=\def!{\color{gray}\itshape\%},
   listparameters=%
     \setlength\topsep{\bigskipamount}%
-    \refstepcounter{ctexexam}\ctexexamlabelref
-    \appto\FV@EndList{\nointerlineskip},
-  defineactive=\def!{\color{gray}\itshape\%}}
+    \refstepcounter{ctexexam}\ctexexamlabelref}
 \preto\ctexexam{\catcode`!=\active}
 \preto\endctexexam{\catcode`!=12}
 \catcode`!=12
@@ -78,17 +77,6 @@
         }
     \group_end:
   }
-% From l3doc, to make @@ -> <module> while @@@@ -> @@
-\cs_set_protected:Npn \__ctxdoc_replace_at_at_aux:Nn #1#2
-  {
-    \tl_replace_all:Nnn #1 { \token_to_str:N @ } { @ }
-    \tl_replace_all:Nnn #1 { \token_to_str:N _ } { _ }
-    \tl_replace_all:Nnn #1 { @ @ @ @ } { \token_to_str:N a a }
-    \tl_replace_all:Nnn #1 { _ _ @ @ } { _ _ #2 }
-    \tl_replace_all:Nnn #1 {   _ @ @ } { _ _ #2 }
-    \tl_replace_all:Nnn #1 {     @ @ } { _ _ #2 }
-    \tl_replace_all:Nnn #1 { \token_to_str:N a a } { @ @ }
-  }
 \ExplSyntaxOff
 \makeatother
 \RenewDocumentEnvironment{arguments}{}%
@@ -97,8 +85,8 @@
   {\endenumerate}
 \title{\textbf{The \pkg{zhlipsum} Package: Chinese Dummy Text}}
 \author{Xiangdong Zeng}
-\date{2018/09/08 \quad v1.1.1%
-  \thanks{\url{https://github.com/Stone-Zeng/zhlipsum}.}}
+\date{2020/04/10 \quad v1.2.0%
+  \thanks{\url{https://github.com/stone-zeng/zhlipsum}.}}
 
 \begin{document}
 
@@ -140,7 +128,7 @@ selected automatically according to \CTeX{}. Note that in \CTeX{}
 bundle, the correspoding options are \opt{UTF8} and \opt{GBK},
 while the options in \pkg{zhlipsum} are all in \emph{lowercase}.
 
-\begin{function}[updated=2018-04-08]{\zhlipsum}
+\begin{function}[updated=2020-04-08]{\zhlipsum}
   \begin{syntax}
     \cs{zhlipsum}\oarg{paragraph}\oarg{options}
     \cs{zhlipsum*}\oarg{paragraph}\oarg{options}
@@ -150,7 +138,7 @@ while the options in \pkg{zhlipsum} are all in \emph{lowercase}.
   between the arguments.
 \end{function}
 
-By default, the \cs{zhlipsum} command will insert \tn{par} before,
+By default, the \cs{zhlipsum} command will insert \tn{par}
 after and between dummy text paragraphs, while \cs{zhlipsum}|*|
 will not give any extra processing. To change the default
 behavior, you can use the \opt{before}, \opt{after} and
@@ -212,9 +200,9 @@ as well.
 
 \begin{function}[added=2018-03-29]{before,after,inter}
   \begin{syntax}
-    name  = \meta{content}
-    after = \meta{content}
-    inter = \meta{content}
+    before = \meta{content}
+    after  = \meta{content}
+    inter  = \meta{content}
   \end{syntax}
   Insert contents before, after or between dummy text paragraphs.
   Note that the \tn{par} command inserted when using \cs{zhlipsum}
@@ -311,7 +299,7 @@ order to avoid the problem temporarily.
 
   ! Using `\newzhlipsum{big5}{許蓋功, 蓋功許, 功許蓋}' directly will
   ! lead to an error.
-  ! Use <, >, + to replace {, } and \, and set the original {, } and \
+  ! Use <, >, + to replace {, } and \, then set the original {, } and \
   ! to be `other' category (i.e. catcode=12).
   \begingroup
     \catcode`\<=1
diff --git a/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum.pdf b/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum.pdf
index 3f31e40b961..c1e34165bf0 100644
--- a/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum.pdf
+++ b/Master/texmf-dist/doc/latex/zhlipsum/zhlipsum.pdf
diff --git a/Master/texmf-dist/source/latex/zhlipsum/zhlipsum-text.dtx b/Master/texmf-dist/source/latex/zhlipsum/zhlipsum-text.dtx
index 8a314fb10c5..ef9fc2903f4 100644
--- a/Master/texmf-dist/source/latex/zhlipsum/zhlipsum-text.dtx
+++ b/Master/texmf-dist/source/latex/zhlipsum/zhlipsum-text.dtx
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+% Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 %
 % This work may be distributed and/or modified under the
 % conditions of the LaTeX Project Public License, either
diff --git a/Master/texmf-dist/source/latex/zhlipsum/zhlipsum.dtx b/Master/texmf-dist/source/latex/zhlipsum/zhlipsum.dtx
index 3ef3fd63a81..f6e0c1b1181 100644
--- a/Master/texmf-dist/source/latex/zhlipsum/zhlipsum.dtx
+++ b/Master/texmf-dist/source/latex/zhlipsum/zhlipsum.dtx
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+% Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 %
 % This work may be distributed and/or modified under the
 % conditions of the LaTeX Project Public License, either
@@ -71,8 +71,8 @@ To install `zhlipsum`, you can use one of the following methods:
 Contributing
 ------------
 
-[Issues](https://github.com/Stone-Zeng/zhlipsum/issues) and
-[pull requests](https://github.com/Stone-Zeng/zhlipsum/pulls)
+[Issues](https://github.com/stone-zeng/zhlipsum/issues) and
+[pull requests](https://github.com/stone-zeng/zhlipsum/pulls)
 are always welcome.
 
 License
@@ -85,7 +85,7 @@ version.
 
 -----
 
-Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
+Copyright (C) 2017&ndash;2020 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %</readme>
 %
 %<*internal>
@@ -102,7 +102,7 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 
 \preamble
 
-    Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+    Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 
     This work may be distributed and/or modified under the
     conditions of the LaTeX Project Public License, either
@@ -183,7 +183,7 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %<package>\NeedsTeXFormat{LaTeX2e}
 %<package>\RequirePackage{expl3}
 %<*!(driver|install)>
-%<!readme>\GetIdInfo $Id: zhlipsum.dtx 1.1.1 2018-09-08 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
+%<!readme>\GetIdInfo $Id: zhlipsum.dtx 1.2.0 2020-04-10 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
 %<package>  {Chinese dummy text}
 %<package>\ProvidesExplPackage{\ExplFileName}
 %<utf8>  {Chinese dummy text with UTF-8 encoding (for zhlipsum)}
@@ -195,12 +195,12 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %<!readme>  {\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
 %</!(driver|install)>
 %<*driver>
-%\PassOptionsToPackage{showframe}{geometry}
 %^^A! \PassOptionsToPackage{scheme=plain, linespread=1.1}{ctex}
 %^^A+
 \documentclass{ctxdoc}
 \usepackage{multirow}
-\setCJKmonofont{FangSong}[ItalicFont=KaiTi]
+\setCJKmainfont{Source Han Serif SC}[ItalicFont=Kaiti SC]
+\setCJKmonofont{STFangsong}[ItalicFont=Kaiti SC]
 %^^A-
 \hypersetup{%
   pdftitle={zhlipsum: 中文乱数假文（Lorem ipsum）},
@@ -219,21 +219,20 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %^^A! \pagestyle{headings}
 %^^A+
 % Use `!` for comment in `ctexexam`.
-\makeatletter
 \catcode`!=\active
 \RecustomVerbatimEnvironment{ctexexam}{Verbatim}{%
   frame=single, framesep=10pt,
 %^^A-
   gobble=4,
   label=\rule{0pt}{12pt}\textnormal{\bfseries 例 \arabic{ctexexam}},
-%^^A!  gobble=2,
-%^^A!  label=\rule{0pt}{12pt}\textnormal{\bfseries Example \arabic{ctexexam}},
+  defineactive=\def!{\color{gray}\%},
+%^^A!   gobble=2,
+%^^A!   label=\rule{0pt}{12pt}\textnormal{\bfseries Example \arabic{ctexexam}},
+%^^A!   defineactive=\def!{\color{gray}\itshape\%},
 %^^A+
   listparameters=%
     \setlength\topsep{\bigskipamount}%
-    \refstepcounter{ctexexam}\ctexexamlabelref
-    \appto\FV@EndList{\nointerlineskip},
-  defineactive=\def!{\color{gray}\itshape\%}}
+    \refstepcounter{ctexexam}\ctexexamlabelref}
 \preto\ctexexam{\catcode`!=\active}
 \preto\endctexexam{\catcode`!=12}
 \catcode`!=12
@@ -252,17 +251,6 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
         }
     \group_end:
   }
-% From l3doc, to make @@ -> <module> while @@@@ -> @@
-\cs_set_protected:Npn \__ctxdoc_replace_at_at_aux:Nn #1#2
-  {
-    \tl_replace_all:Nnn #1 { \token_to_str:N @ } { @ }
-    \tl_replace_all:Nnn #1 { \token_to_str:N _ } { _ }
-    \tl_replace_all:Nnn #1 { @ @ @ @ } { \token_to_str:N a a }
-    \tl_replace_all:Nnn #1 { _ _ @ @ } { _ _ #2 }
-    \tl_replace_all:Nnn #1 {   _ @ @ } { _ _ #2 }
-    \tl_replace_all:Nnn #1 {     @ @ } { _ _ #2 }
-    \tl_replace_all:Nnn #1 { \token_to_str:N a a } { @ @ }
-  }
 \ExplSyntaxOff
 \makeatother
 \RenewDocumentEnvironment{arguments}{}%
@@ -313,12 +301,12 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %
 % \title{\textbf{zhlipsum: 中文乱数假文（Lorem ipsum）}}
 % \author{曾祥东}
-% \date{2018/09/08 \quad v1.1.1^^A
-%   \thanks{\url{https://github.com/Stone-Zeng/zhlipsum}.}}
+% \date{2020/04/10 \quad v1.2.0^^A
+%   \thanks{\url{https://github.com/stone-zeng/zhlipsum}.}}
 %^^A! \title{\textbf{The \pkg{zhlipsum} Package: Chinese Dummy Text}}
 %^^A! \author{Xiangdong Zeng}
-%^^A! \date{2018/09/08 \quad v1.1.1%
-%^^A!   \thanks{\url{https://github.com/Stone-Zeng/zhlipsum}.}}
+%^^A! \date{2020/04/10 \quad v1.2.0%
+%^^A!   \thanks{\url{https://github.com/stone-zeng/zhlipsum}.}}
 %^^A!
 %
 %^^A 标题页页边距
@@ -432,8 +420,8 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %^^A!
 %
 % 如果使用了 \CTeX{} 宏集，则编码会根据 \CTeX{} 自动确定。但需注意，
-% 在 \CTeX{} 宏集中，相应的宏包选项为 \opt{UTF8} 和 \opt{GBK}，而本
-% 宏包中所有选项均为小写。
+% 在 \CTeX{} 宏集中，相应的宏包选项为大写的 \opt{UTF8} 和 \opt{GBK}，
+% 而本宏包中所有选项均为小写。
 %^^A! If you have loaded \CTeX{} bundle, then the encoding will be
 %^^A! selected automatically according to \CTeX{}. Note that in \CTeX{}
 %^^A! bundle, the correspoding options are \opt{UTF8} and \opt{GBK},
@@ -441,7 +429,7 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %^^A!
 %
 %^^A+
-% \begin{function}[updated=2018-04-08]{\zhlipsum}
+% \begin{function}[updated=2020-04-08]{\zhlipsum}
 %^^A-
 %   \begin{syntax}
 %     \cs{zhlipsum}\oarg{段落}\oarg{选项}
@@ -460,11 +448,11 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %^^A! \end{function}
 %^^A!
 %
-% 默认情况下，不带星号的命令 \cs{zhlipsum} 会在假文段落之前、之后与
-% 之间进行分段（即插入 \tn{par}），而带星号的命令 \cs{zhlipsum}|*|
+% 默认情况下，不带星号的命令 \cs{zhlipsum} 会在假文段落之后与之间
+% 进行分段（即插入 \tn{par}），而带星号的命令 \cs{zhlipsum}|*|
 % 则不做额外处理。您可以利用后文给出的 \opt{before}、\opt{after}、
 % \opt{inter} 选项来更改默认设置。
-%^^A! By default, the \cs{zhlipsum} command will insert \tn{par} before,
+%^^A! By default, the \cs{zhlipsum} command will insert \tn{par}
 %^^A! after and between dummy text paragraphs, while \cs{zhlipsum}|*|
 %^^A! will not give any extra processing. To change the default
 %^^A! behavior, you can use the \opt{before}, \opt{after} and
@@ -577,17 +565,17 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 % \begin{function}[added=2018-03-29]{before,after,inter}
 %^^A-
 %   \begin{syntax}
-%     name  = \meta{内容}
-%     after = \meta{内容}
-%     inter = \meta{内容}
+%     before = \meta{内容}
+%     after  = \meta{内容}
+%     inter  = \meta{内容}
 %   \end{syntax}
 %   在假文段落之前、之后与之间插入内容。注意使用不带星号的
 %   \cs{zhlipsum} 命令时插入的分段命令会被这里的设置覆盖。
 % \end{function}
 %^^A!   \begin{syntax}
-%^^A!     name  = \meta{content}
-%^^A!     after = \meta{content}
-%^^A!     inter = \meta{content}
+%^^A!     before = \meta{content}
+%^^A!     after  = \meta{content}
+%^^A!     inter  = \meta{content}
 %^^A!   \end{syntax}
 %^^A!   Insert contents before, after or between dummy text paragraphs.
 %^^A!   Note that the \tn{par} command inserted when using \cs{zhlipsum}
@@ -767,8 +755,8 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %   ! \usepackage[encoding=big5]{zhlipsum}
 %
 %   ! 直接使用 \newzhlipsum{big5}{許蓋功, 蓋功許, 功許蓋} 会报错
-%   ! 原理：在分组内用 <、>、+ 代替 {、}、\，再将原先的 {、}、\ 设为“其他”
-%   ! 类（即类别码为 12）
+%   ! 原理：分组内使用 < > + 代替 { } \ 后，再将原先的 { } \ 设为“其他”类（即
+%   ! 类别码为 12）
 %   \begingroup
 %     \catcode`\<=1
 %     \catcode`\>=2
@@ -786,7 +774,7 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %^^A!
 %^^A!   ! Using `\newzhlipsum{big5}{許蓋功, 蓋功許, 功許蓋}' directly will
 %^^A!   ! lead to an error.
-%^^A!   ! Use <, >, + to replace {, } and \, and set the original {, } and \
+%^^A!   ! Use <, >, + to replace {, } and \, then set the original {, } and \
 %^^A!   ! to be `other' category (i.e. catcode=12).
 %^^A!   \begingroup
 %^^A!     \catcode`\<=1
@@ -833,19 +821,17 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %
 % \subsection{内部变量和函数}
 %
-% \begin{variable}{\l_@@_tmpa_tl,\l_@@_tmpa_seq,\l_@@_tmpb_seq}
+% \begin{variable}{
+%   \l_@@_tmpa_tl,
+%   \l_@@_tmpa_seq,
+%   \l_@@_tmpb_seq,
+%   \l_@@_tmpa_str}
 % 临时变量。
 %    \begin{macrocode}
 \tl_new:N  \l_@@_tmpa_tl
 \seq_new:N \l_@@_tmpa_seq
 \seq_new:N \l_@@_tmpb_seq
-%    \end{macrocode}
-% \end{variable}
-%
-% \begin{variable}{\g_@@_encoding_tl}
-% 编码信息。
-%    \begin{macrocode}
-\tl_new:N \g_@@_encoding_tl
+\str_new:N \l_@@_tmpa_str
 %    \end{macrocode}
 % \end{variable}
 %
@@ -859,56 +845,64 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 % \begin{variable}{\c_zhlipsum_simp_seq,\c_zhlipsum_trad_seq}
 % 预定义的简体中文与繁体中文的假文名称列表。
 %    \begin{macrocode}
-\seq_new:N \c_zhlipsum_simp_seq
-\seq_new:N \c_zhlipsum_trad_seq
-\seq_set_from_clist:Nn \c_zhlipsum_simp_seq { simp, zhufu, aspirin }
-\seq_set_from_clist:Nn \c_zhlipsum_trad_seq { trad, xiangyu, nanshanjing }
+\seq_const_from_clist:Nn \c_zhlipsum_simp_seq { simp, zhufu, aspirin }
+\seq_const_from_clist:Nn \c_zhlipsum_trad_seq { trad, xiangyu, nanshanjing }
 %    \end{macrocode}
 % \end{variable}
 %
+% \begin{macro}[int]{\file_input:x}
 % \LaTeX3 函数变体。
 %    \begin{macrocode}
 \cs_generate_variant:Nn \file_input:n { x }
-\prg_generate_conditional_variant:Nnn \tl_if_eq:nn { Vn } { T, TF }
 %    \end{macrocode}
+% \end{macro}
 %
-% \begin{macro}[int,TF]{\@@_if_unicode_engine:}
+% \begin{macro}[TF]{\@@_if_unicode_engine:}
 % 判断是否为 Unicode 引擎。来自于 \pkg{zhnumber} 宏包。
 %    \begin{macrocode}
-\prg_new_protected_conditional:Npnn \@@_if_unicode_engine: { T, F, TF }
+\prg_new_conditional:Npnn \@@_if_unicode_engine: { T, F, TF }
   {
     \bool_lazy_any:nTF
       {
-        { \sys_if_engine_xetex_p:  }
-        { \sys_if_engine_luatex_p: }
-        { \sys_if_engine_uptex_p:  }
+        \sys_if_engine_xetex_p:
+        \sys_if_engine_luatex_p:
+        \sys_if_engine_uptex_p:
       }
-      { \prg_return_true:  }
-      { \prg_return_false: }
+      { \prg_return_true: } { \prg_return_false: }
   }
 %    \end{macrocode}
 % \end{macro}
 %
 % \begin{macro}[TF]{\@@_if_encoding:n}
+% \begin{variable}{\g_@@_encoding_str}
 % 判断当前编码。
 %    \begin{macrocode}
-\prg_new_protected_conditional:Npnn \@@_if_encoding:n #1 { T, F, TF }
+\prg_new_conditional:Npnn \@@_if_encoding:n #1 { T, F, TF }
   {
-    \tl_if_eq:VnTF \g_@@_encoding_tl {#1}
+    \str_if_eq:VnTF \g_@@_encoding_str {#1}
       { \prg_return_true: } { \prg_return_false: }
   }
+\prg_generate_conditional_variant:Nnn \@@_if_encoding:n { V } { T, F, TF }
+\str_new:N \g_@@_encoding_str
 %    \end{macrocode}
+% \end{variable}
 % \end{macro}
 %
-% \begin{macro}{\@@_msg_new:nn,
-%   \@@_error:n,\@@_error:nn,
-%   \@@_warning:nn,\@@_warning:nnn,\@@_warning:nxxx,
+% \begin{macro}{
+%   \@@_msg_new:nn,
+%   \@@_error:n,
+%   \@@_error:nn,
+%   \@@_warning:n,
+%   \@@_warning:nn,
+%   \@@_warning:nnn,
+%   \@@_warning:nxxx,
 %   \@@_info:nn}
 % 各种信息函数的缩略形式。
 %    \begin{macrocode}
 \cs_new:Npn \@@_msg_new:nn   { \msg_new:nnn       { zhlipsum } }
 \cs_new:Npn \@@_error:n      { \msg_error:nn      { zhlipsum } }
 \cs_new:Npn \@@_error:nn     { \msg_error:nnn     { zhlipsum } }
+\cs_new:Npn \@@_warning:n    { \msg_warning:nn    { zhlipsum } }
 \cs_new:Npn \@@_warning:nn   { \msg_warning:nnn   { zhlipsum } }
 \cs_new:Npn \@@_warning:nnn  { \msg_warning:nnnn  { zhlipsum } }
 \cs_new:Npn \@@_warning:nxxx { \msg_warning:nnxxx { zhlipsum } }
@@ -916,17 +910,12 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %    \end{macrocode}
 % \end{macro}
 %
-% \begin{macro}{\@@_par:}
-% 分段命令。
-%    \begin{macrocode}
-\cs_new_eq:NN \@@_par: \tex_par:D
-%    \end{macrocode}
-% \end{macro}
-%
 % \subsection{宏包选项}
 %
 % \changes{v0.4}{2017/09/16}{新增 \opt{encoding} 选项。}
 % \changes{v0.5}{2017/12/22}{支持 Big5 编码。}
+% \changes{v1.0.0}{2018/04/01}{根据 \CTeX{} 宏集的选项自动确定编码。}
+% \changes{v1.2.0}{2020/02/20}{优化编码判断。}
 %
 % \begin{macro}{encoding}
 % 设置编码。
@@ -935,19 +924,7 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
   {
     encoding .choices:nn =
       { utf8, gbk, big5 }
-      {
-        \tl_gset_eq:NN \g_@@_encoding_tl \l_keys_choice_tl
-        \@@_if_unicode_engine:T
-          {
-            \@@_if_encoding:nF { utf8 }
-              {
-                \tl_gset:Nn \g_@@_encoding_tl { utf8 }
-                \@@_warning:nn { unicode-engine } {#1}
-              }
-          }
-        \@@_if_ctex_valid_encoding:F
-          { \@@_error:nn { ctex-invalid-encoding } {#1} }
-      },
+      { \str_gset:Nn \g_@@_encoding_str {#1} },
     encoding / unknown .code:n =
       { \@@_error:nn { invalid-encoding } {#1} },
     encoding .value_required:n = true,
@@ -962,64 +939,78 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %
 % 提示信息。
 %    \begin{macrocode}
-\@@_msg_new:nn { unicode-engine }
-  {
-    You~ are~ now~ using~ Unicode~ engine~ \c_sys_engine_str. \\
-    Encoding~ "#1"~ is~ invalid.~ Changed~ into~ "utf8".
-  }
-\@@_msg_new:nn { ctex-invalid-encoding }
-  {
-    Package~ option~ "encoding=#1"~ is~ in~ conflict~ with~ ctex's~
-    option~ "\tl_use:N \l__ctex_encoding_tl".\\\\
-    Please~ check~ the~ package~ options.
-  }
 \@@_msg_new:nn { invalid-encoding }
   {
-    Encoding~ "#1"~ is~ invalid. \\
-    Available~ encodings~ are~ "utf8",~ "gbk"~ and~ "big5".
+    Encoding~"#1"~is~invalid. \\
+    Available~encodings~are~"utf8",~"gbk"~and~"big5".
   }
 \@@_msg_new:nn { unknown-option }
-  { Package~ option~ "\l_keys_key_tl"~ is~ unknown. }
+  { Package~option~'\l_keys_key_tl'~is~unknown. }
 %    \end{macrocode}
 %
-% \changes{v1.0.0}{2018/04/01}{根据 \CTeX{} 宏集的选项自动确定编码。}
-%
-% \begin{macro}[TF]{\@@_if_ctex_valid_encoding:}
-% 检查 \CTeX{} 编码。
+% \begin{macro}{\@@_check_unicode_engine_encoding:}
+% Unicode 引擎下编码始终设为 UTF-8。
 %    \begin{macrocode}
-\prg_new_protected_conditional:Npnn \@@_if_ctex_valid_encoding: { F }
+\cs_new_protected:Npn \@@_check_unicode_engine_encoding:
   {
-    \tl_if_exist:NTF \l__ctex_encoding_tl
+    \@@_if_unicode_engine:T
       {
-        \tl_set:Nx \l_@@_tmpa_tl
-          { \str_lower_case:f { \l__ctex_encoding_tl } }
-        \str_if_eq:NNTF \g_@@_encoding_tl \l_@@_tmpa_tl
-          { \prg_return_true: } { \prg_return_false: }
+        \str_if_empty:NF \g_@@_encoding_str
+          {
+            \@@_if_encoding:nF { utf8 }
+              { \@@_warning:n { unicode-engine } }
+          }
+        \str_gset:Nn \g_@@_encoding_str { utf8 }
       }
-      { \prg_return_true: }
+  }
+\@@_msg_new:nn { unicode-engine }
+  {
+    You~are~now~using~Unicode~engine~\c_sys_engine_str\c_space_tl~so~
+    encoding~"\g_@@_encoding_str"~is~invalid. \\
+    Changed~into~"utf8".
   }
 %    \end{macrocode}
 % \end{macro}
 %
-% 如果调用了 \CTeX{} 宏集，则自动确定编码；否则默认设为 UTF-8。
+% \begin{macro}{\@@_check_ctex_encoding:}
+% 如果调用了 \CTeX{} 宏集，则自动确定编码。
 %    \begin{macrocode}
-\tl_if_exist:NTF \l__ctex_encoding_tl
+\cs_new_protected:Npn \@@_check_ctex_encoding:
   {
-    \tl_if_eq:VnTF \l__ctex_encoding_tl { UTF8 }
-      { \tl_gset:Nn \g_@@_encoding_tl { utf8 } }
+    \tl_if_exist:NT \l__ctex_encoding_tl
       {
-        \tl_if_eq:VnT \l__ctex_encoding_tl { GBK }
-          { \tl_gset:Nn \g_@@_encoding_tl { gbk } }
+        \str_set:Nx \l_@@_tmpa_str
+          { \str_lower_case:f { \l__ctex_encoding_tl } }
+        \str_if_empty:NF \g_@@_encoding_str
+          {
+            \@@_if_encoding:VF \l_@@_tmpa_str
+              { \@@_warning:n { ctex-encoding-conflict } }
+          }
+        \str_gset_eq:NN \g_@@_encoding_str \l_@@_tmpa_str
       }
   }
-  { \tl_gset:Nn \g_@@_encoding_tl { utf8 } }
+\@@_msg_new:nn { ctex-encoding-conflict }
+  {
+    Package~option~"encoding=\g_@@_encoding_str"~is~in~conflict~with~
+    ctex's~option~"\l__ctex_encoding_tl". \\
+    Changed~into~"encoding=\l_@@_tmpa_str".
+  }
 %    \end{macrocode}
+% \end{macro}
 %
 % 将宏包选项传给 |zhlipsum/option|。
 %    \begin{macrocode}
 \ProcessKeysOptions { zhlipsum / option }
 %    \end{macrocode}
 %
+% 检查编码兼容性。
+%    \begin{macrocode}
+\@@_check_unicode_engine_encoding:
+\@@_check_ctex_encoding:
+\str_if_empty:NT \g_@@_encoding_str
+  { \str_gset:Nn \g_@@_encoding_str { utf8 } }
+%    \end{macrocode}
+%
 % \subsection{函数选项}
 %
 % \begin{variable}{\l_@@_name_tl}
@@ -1063,8 +1054,7 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %    \end{macrocode}
 % \end{macro}
 %
-% \changes{v0.5}{2017/12/22}{新增选项 \opt{script}，同时支持简体中文
-%   和繁体中文。}
+% \changes{v0.5}{2017/12/22}{新增选项 \opt{script}，同时支持简体中文和繁体中文。}
 % \changes{v1.0.0}{2018/03/24}{\opt{script} 成为过时选项。}
 %
 % \begin{macro}{script}
@@ -1112,57 +1102,55 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %
 % \subsection{输出假文}
 %
-% \begin{macro}{\zhlipsum}
+% \begin{macro}{\zhlipsum,\@@:n}
 % \changes{v0.5}{2018/01/05}{支持选项设置。}
-% \changes{v1.0.0}{2018/03/23}{更改参数形式，允许利用逗号分隔列表选择
-%   段落。}
+% \changes{v1.0.0}{2018/03/23}{更改参数形式，允许利用逗号分隔列表选择段落。}
 % \changes{v1.1.0}{2018/04/08}{改回使用方括号指定段落数的形式。}
-% 输出假文，第一个可选参数表示段落数，默认为 |1-3|；第二个可选参数为选
-% 项列表。
+% \changes{v1.2.0}{2020/04/08}{修正 \env{quote}/\env{quotation} 等环境中段落缩进消失问题。}
+% \changes{v1.2.0}{2020/04/08}{与 \pkg{lipsum} 等宏包保持一致，不在开头插入分段命令。}
+% 输出假文，第一个可选参数表示段落数，默认为 |1-3|；第二个可选参数为选项列表。
 %    \begin{macrocode}
 \NewDocumentCommand \zhlipsum { s o +o }
   {
     \group_begin:
       \IfBooleanF {#1}
         {
-          \tl_set:Nn \l_@@_before_tl { \@@_par: }
-          \tl_set:Nn \l_@@_after_tl  { \@@_par: }
-          \tl_set:Nn \l_@@_inter_tl  { \@@_par: }
+          \tl_set:Nn \l_@@_before_tl { }
+          \tl_set:Nn \l_@@_after_tl  { \par }
+          \tl_set:Nn \l_@@_inter_tl  { \par }
         }
       \IfValueTF {#3}
         {
           \keys_set:nn { zhlipsum } {#3}
-          \zhlipsum_use:Vn \l_@@_name_tl {#2}
+          \@@:n {#2}
         }
         {
           \IfValueTF {#2}
             {
 %    \end{macrocode}
-% 如果只带一个参数，那么根据其是否含有 |=| 来判断该参数是段落数还是
-% 选项列表。
+% 如果只带一个参数，那么根据其是否含有 |=| 来判断该参数是段落数还是选项列表。
 %    \begin{macrocode}
               \@@_if_key_value_list:nTF {#2}
                 {
                   \keys_set:nn { zhlipsum } {#2}
-                  \zhlipsum_use:Vn \l_@@_name_tl { 1 - 3 }
+                  \@@:n { 1 - 3 }
                 }
-                { \zhlipsum_use:Vn \l_@@_name_tl {#2} }
+                { \@@:n {#2} }
             }
-            { \zhlipsum_use:Vn \l_@@_name_tl { 1 - 3 } }
+            { \@@:n { 1 - 3 } }
         }
     \group_end:
   }
+\cs_new_protected:Npn \@@:n #1
+  { \exp_args:No \zhlipsum_use:nn { \l_@@_name_tl } {#1} }
 %    \end{macrocode}
 % \end{macro}
 %
-% \begin{macro}[TF]{\@@_if_key_value_list:n}
+% \begin{macro}{\@@_if_key_value_list:nTF}
 % 判断是否为键值列表，即是否含有 |=|。
 %    \begin{macrocode}
-\prg_new_protected_conditional:Npnn \@@_if_key_value_list:n #1 { TF }
-  {
-    \tl_if_in:nnTF {#1} { = }
-      { \prg_return_true: } { \prg_return_false: }
-  }
+\cs_new_protected:Npn \@@_if_key_value_list:nTF #1
+  { \tl_if_in:nnTF {#1} {=} }
 %    \end{macrocode}
 % \end{macro}
 %
@@ -1173,7 +1161,8 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %    \end{macrocode}
 % \end{variable}
 %
-% \begin{macro}{\zhlipsum_use:nn,\zhlipsum_use:Vn}
+% \begin{macro}{\zhlipsum_use:nn}
+% \changes{v1.2.0}{2019/08/11}{检查空的段落范围避免陷入死循环。}
 % 输出多段假文。|#1| = 假文名称，|#2| = 段落编号列表。解析段落编号之
 % 后，按次序逐项输出，并在前后插入相应内容。注意最后一段需要单独处理。
 %    \begin{macrocode}
@@ -1184,33 +1173,34 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
         \zhlipsum_if_exist:nTF {#1}
           {
             \@@_parse_par:nn {#1} {#2}
-            \seq_pop_right:NN  \l_@@_par_num_seq \l_@@_tmpa_tl
-            \tl_use:N \l_@@_before_tl
-            \seq_map_inline:Nn \l_@@_par_num_seq
+            \seq_if_empty:NF \l_@@_par_num_seq
               {
-                \@@_use:nn {#1} {##1}
-                \tl_use:N \l_@@_inter_tl
+                \seq_pop_right:NN  \l_@@_par_num_seq \l_@@_tmpa_tl
+                \l_@@_before_tl
+                \seq_map_inline:Nn \l_@@_par_num_seq
+                  {
+                    \@@_use:nn {#1} {##1}
+                    \l_@@_inter_tl
+                  }
+                \@@_use:nn {#1} { \l_@@_tmpa_tl }
+                \l_@@_after_tl
               }
-            \@@_use:nn {#1} { \tl_use:N \l_@@_tmpa_tl }
-            \tl_use:N \l_@@_after_tl
           }
           { \@@_error:nn { invalid-name } {#1} }
       }
       { \@@_error:n { CJK-invalid-encoding } }
   }
-\cs_generate_variant:Nn \zhlipsum_use:nn { Vn }
 \@@_msg_new:nn { invalid-name }
   {
-    Name~ "#1"~ is~ unknown. \\\\
+    Name~ "#1"~ is~ unknown. \\
     Please~ use~ the~ pre-defined~ Chinese~ dummy~ texts~ or~
     declare~ new~ one.
   }
 \@@_msg_new:nn { CJK-invalid-encoding }
   {
-    The~ current~ CJK~ environment~ uses~ "\tl_use:N \CJK@@@@@enc"~
-    encoding,\\
+    The~ current~ CJK~ environment~ uses~ "\CJK@@@@@enc"~ encoding,~
     but~ zhlipsum~ package~ has~ been~ loaded~ with~ the~ option~
-    "encoding=\tl_use:N \g_@@_encoding_tl".\\\\
+    "encoding=\g_@@_encoding_str". \\
     Please~ check~ the~ package~ options.
   }
 %    \end{macrocode}
@@ -1223,25 +1213,13 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
   {
     \tl_if_exist:NTF \CJK@@@@@enc
       {
-        \tl_set:Nx \l_@@_tmpa_tl { \str_lower_case:f { \CJK@@@@@enc } }
-% TODO: str or tl?
-        \str_if_eq:NNTF \g_@@_encoding_tl \l_@@_tmpa_tl
-          { \prg_return_true: }
+        \exp_args:NV \str_case:nn \g_@@_encoding_str
           {
-            \@@_if_encoding:nTF { gbk }
-              {
-                \str_if_eq:VnTF \l_@@_tmpa_tl { gb }
-                  { \prg_return_true: } { \prg_return_false: }
-              }
-              {
-                \@@_if_encoding:nTF { big5 }
-                  {
-                    \str_if_eq:VnTF \l_@@_tmpa_tl { bg5 }
-                      { \prg_return_true: } { \prg_return_false: }
-                  }
-                  { \prg_return_false: }
-              }
+            { utf8 } { \str_if_eq:VnTF \CJK@@@@@enc { UTF8 } }
+            { gbk  } { \str_if_in:NnTF \CJK@@@@@enc { GB   } }
+            { big5 } { \str_if_eq:VnTF \CJK@@@@@enc { Bg5  } }
           }
+        { \prg_return_true: } { \prg_return_false: }
       }
       { \prg_return_true: }
   }
@@ -1288,7 +1266,7 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
     \clist_map_inline:nn {#2}
       {
         \@@_parse_par_aux:n {##1}
-        \bool_if:NTF \l@@_invalid_range_bool
+        \bool_if:NTF \l_@@_invalid_range_bool
           { \@@_warning:nnn { invalid-range } {##1} {#2} }
           {
             \bool_if:NT \l_@@_modified_range_bool
@@ -1449,7 +1427,7 @@ Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>.
 %
 % 根据编码读入假文文本定义文件。
 %    \begin{macrocode}
-\file_input:x { zhlipsum- \g_@@_encoding_tl .def }
+\file_input:x { zhlipsum- \g_@@_encoding_str .def }
 %</package>
 %    \end{macrocode}
 %
diff --git a/Master/texmf-dist/source/latex/zhlipsum/zhlipsum.ins b/Master/texmf-dist/source/latex/zhlipsum/zhlipsum.ins
index ebee71c7d60..231a01d98e0 100644
--- a/Master/texmf-dist/source/latex/zhlipsum/zhlipsum.ins
+++ b/Master/texmf-dist/source/latex/zhlipsum/zhlipsum.ins
@@ -6,7 +6,7 @@
 %%
 %% zhlipsum.dtx  (with options: `install')
 %% 
-%%     Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+%%     Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 %% 
 %%     This work may be distributed and/or modified under the
 %%     conditions of the LaTeX Project Public License, either
@@ -39,7 +39,7 @@
 
 \preamble
 
-    Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+    Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 
     This work may be distributed and/or modified under the
     conditions of the LaTeX Project Public License, either
diff --git a/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-big5.def b/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-big5.def
index ee72622a1aa..4a9e4740241 100644
--- a/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-big5.def
+++ b/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-big5.def
@@ -7,7 +7,7 @@
 %% zhlipsum.dtx  (with options: `text,big5')
 %% zhlipsum-text.dtx  (with options: `text,big5')
 %% 
-%%     Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+%%     Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 %% 
 %%     This work may be distributed and/or modified under the
 %%     conditions of the LaTeX Project Public License, either
@@ -35,7 +35,7 @@
 %%                                     zhlipsum-en.pdf,
 %%                                 and README.md.
 %% 
-\GetIdInfo $Id: zhlipsum.dtx 1.1.1 2018-09-08 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
+\GetIdInfo $Id: zhlipsum.dtx 1.2.0 2020-04-10 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
   {Chinese dummy text with Big5 encoding (for zhlipsum)}
 \ProvidesExplFile{\ExplFileName-big5.def}
   {\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-gbk.def b/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-gbk.def
index 463520f8d2f..c177e08dff9 100644
--- a/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-gbk.def
+++ b/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-gbk.def
@@ -7,7 +7,7 @@
 %% zhlipsum.dtx  (with options: `text,gbk')
 %% zhlipsum-text.dtx  (with options: `text,gbk')
 %% 
-%%     Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+%%     Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 %% 
 %%     This work may be distributed and/or modified under the
 %%     conditions of the LaTeX Project Public License, either
@@ -35,7 +35,7 @@
 %%                                     zhlipsum-en.pdf,
 %%                                 and README.md.
 %% 
-\GetIdInfo $Id: zhlipsum.dtx 1.1.1 2018-09-08 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
+\GetIdInfo $Id: zhlipsum.dtx 1.2.0 2020-04-10 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
   {Chinese dummy text with GBK encoding (for zhlipsum)}
 \ProvidesExplFile{\ExplFileName-gbk.def}
   {\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-utf8.def b/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-utf8.def
index c4a7538a23b..e9d35bd1b54 100644
--- a/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-utf8.def
+++ b/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum-utf8.def
@@ -7,7 +7,7 @@
 %% zhlipsum.dtx  (with options: `text,utf8')
 %% zhlipsum-text.dtx  (with options: `text,utf8')
 %% 
-%%     Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+%%     Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 %% 
 %%     This work may be distributed and/or modified under the
 %%     conditions of the LaTeX Project Public License, either
@@ -35,7 +35,7 @@
 %%                                     zhlipsum-en.pdf,
 %%                                 and README.md.
 %% 
-\GetIdInfo $Id: zhlipsum.dtx 1.1.1 2018-09-08 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
+\GetIdInfo $Id: zhlipsum.dtx 1.2.0 2020-04-10 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
   {Chinese dummy text with UTF-8 encoding (for zhlipsum)}
 \ProvidesExplFile{\ExplFileName-utf8.def}
   {\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum.sty b/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum.sty
index ff08b730cb1..83b68f21ff2 100644
--- a/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum.sty
+++ b/Master/texmf-dist/tex/latex/zhlipsum/zhlipsum.sty
@@ -6,7 +6,7 @@
 %%
 %% zhlipsum.dtx  (with options: `package')
 %% 
-%%     Copyright (C) 2017, 2018 by Xiangdong Zeng <xdzeng96@gmail.com>
+%%     Copyright (C) 2017--2020 by Xiangdong Zeng <xdzeng96@gmail.com>
 %% 
 %%     This work may be distributed and/or modified under the
 %%     conditions of the LaTeX Project Public License, either
@@ -36,7 +36,7 @@
 %% 
 \NeedsTeXFormat{LaTeX2e}
 \RequirePackage{expl3}
-\GetIdInfo $Id: zhlipsum.dtx 1.1.1 2018-09-08 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
+\GetIdInfo $Id: zhlipsum.dtx 1.2.0 2020-04-10 12:00:00Z Xiangdong Zeng <xdzeng96@gmail.com> $
   {Chinese dummy text}
 \ProvidesExplPackage{\ExplFileName}
   {\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
@@ -56,100 +56,96 @@
 \tl_new:N  \l__zhlipsum_tmpa_tl
 \seq_new:N \l__zhlipsum_tmpa_seq
 \seq_new:N \l__zhlipsum_tmpb_seq
-\tl_new:N \g__zhlipsum_encoding_tl
+\str_new:N \l__zhlipsum_tmpa_str
 \seq_new:N \g_zhlipsum_seq
-\seq_new:N \c_zhlipsum_simp_seq
-\seq_new:N \c_zhlipsum_trad_seq
-\seq_set_from_clist:Nn \c_zhlipsum_simp_seq { simp, zhufu, aspirin }
-\seq_set_from_clist:Nn \c_zhlipsum_trad_seq { trad, xiangyu, nanshanjing }
+\seq_const_from_clist:Nn \c_zhlipsum_simp_seq { simp, zhufu, aspirin }
+\seq_const_from_clist:Nn \c_zhlipsum_trad_seq { trad, xiangyu, nanshanjing }
 \cs_generate_variant:Nn \file_input:n { x }
-\prg_generate_conditional_variant:Nnn \tl_if_eq:nn { Vn } { T, TF }
-\prg_new_protected_conditional:Npnn \__zhlipsum_if_unicode_engine: { T, F, TF }
+\prg_new_conditional:Npnn \__zhlipsum_if_unicode_engine: { T, F, TF }
   {
     \bool_lazy_any:nTF
       {
-        { \sys_if_engine_xetex_p:  }
-        { \sys_if_engine_luatex_p: }
-        { \sys_if_engine_uptex_p:  }
+        \sys_if_engine_xetex_p:
+        \sys_if_engine_luatex_p:
+        \sys_if_engine_uptex_p:
       }
-      { \prg_return_true:  }
-      { \prg_return_false: }
+      { \prg_return_true: } { \prg_return_false: }
   }
-\prg_new_protected_conditional:Npnn \__zhlipsum_if_encoding:n #1 { T, F, TF }
+\prg_new_conditional:Npnn \__zhlipsum_if_encoding:n #1 { T, F, TF }
   {
-    \tl_if_eq:VnTF \g__zhlipsum_encoding_tl {#1}
+    \str_if_eq:VnTF \g__zhlipsum_encoding_str {#1}
       { \prg_return_true: } { \prg_return_false: }
   }
+\prg_generate_conditional_variant:Nnn \__zhlipsum_if_encoding:n { V } { T, F, TF }
+\str_new:N \g__zhlipsum_encoding_str
 \cs_new:Npn \__zhlipsum_msg_new:nn   { \msg_new:nnn       { zhlipsum } }
 \cs_new:Npn \__zhlipsum_error:n      { \msg_error:nn      { zhlipsum } }
 \cs_new:Npn \__zhlipsum_error:nn     { \msg_error:nnn     { zhlipsum } }
+\cs_new:Npn \__zhlipsum_warning:n    { \msg_warning:nn    { zhlipsum } }
 \cs_new:Npn \__zhlipsum_warning:nn   { \msg_warning:nnn   { zhlipsum } }
 \cs_new:Npn \__zhlipsum_warning:nnn  { \msg_warning:nnnn  { zhlipsum } }
 \cs_new:Npn \__zhlipsum_warning:nxxx { \msg_warning:nnxxx { zhlipsum } }
 \cs_new:Npn \__zhlipsum_info:nn      { \msg_info:nnn      { zhlipsum } }
-\cs_new_eq:NN \__zhlipsum_par: \tex_par:D
 \keys_define:nn { zhlipsum / option }
   {
     encoding .choices:nn =
       { utf8, gbk, big5 }
-      {
-        \tl_gset_eq:NN \g__zhlipsum_encoding_tl \l_keys_choice_tl
-        \__zhlipsum_if_unicode_engine:T
-          {
-            \__zhlipsum_if_encoding:nF { utf8 }
-              {
-                \tl_gset:Nn \g__zhlipsum_encoding_tl { utf8 }
-                \__zhlipsum_warning:nn { unicode-engine } {#1}
-              }
-          }
-        \__zhlipsum_if_ctex_valid_encoding:F
-          { \__zhlipsum_error:nn { ctex-invalid-encoding } {#1} }
-      },
+      { \str_gset:Nn \g__zhlipsum_encoding_str {#1} },
     encoding / unknown .code:n =
       { \__zhlipsum_error:nn { invalid-encoding } {#1} },
     encoding .value_required:n = true,
     unknown .code:n = { \__zhlipsum_error:n { unknown-option } }
   }
-\__zhlipsum_msg_new:nn { unicode-engine }
+\__zhlipsum_msg_new:nn { invalid-encoding }
   {
-    You~ are~ now~ using~ Unicode~ engine~ \c_sys_engine_str. \\
-    Encoding~ "#1"~ is~ invalid.~ Changed~ into~ "utf8".
+    Encoding~"#1"~is~invalid. \\
+    Available~encodings~are~"utf8",~"gbk"~and~"big5".
   }
-\__zhlipsum_msg_new:nn { ctex-invalid-encoding }
+\__zhlipsum_msg_new:nn { unknown-option }
+  { Package~option~'\l_keys_key_tl'~is~unknown. }
+\cs_new_protected:Npn \__zhlipsum_check_unicode_engine_encoding:
   {
-    Package~ option~ "encoding=#1"~ is~ in~ conflict~ with~ ctex's~
-    option~ "\tl_use:N \l__ctex_encoding_tl".\\\\
-    Please~ check~ the~ package~ options.
+    \__zhlipsum_if_unicode_engine:T
+      {
+        \str_if_empty:NF \g__zhlipsum_encoding_str
+          {
+            \__zhlipsum_if_encoding:nF { utf8 }
+              { \__zhlipsum_warning:n { unicode-engine } }
+          }
+        \str_gset:Nn \g__zhlipsum_encoding_str { utf8 }
+      }
   }
-\__zhlipsum_msg_new:nn { invalid-encoding }
+\__zhlipsum_msg_new:nn { unicode-engine }
   {
-    Encoding~ "#1"~ is~ invalid. \\
-    Available~ encodings~ are~ "utf8",~ "gbk"~ and~ "big5".
+    You~are~now~using~Unicode~engine~\c_sys_engine_str\c_space_tl~so~
+    encoding~"\g__zhlipsum_encoding_str"~is~invalid. \\
+    Changed~into~"utf8".
   }
-\__zhlipsum_msg_new:nn { unknown-option }
-  { Package~ option~ "\l_keys_key_tl"~ is~ unknown. }
-\prg_new_protected_conditional:Npnn \__zhlipsum_if_ctex_valid_encoding: { F }
+\cs_new_protected:Npn \__zhlipsum_check_ctex_encoding:
   {
-    \tl_if_exist:NTF \l__ctex_encoding_tl
+    \tl_if_exist:NT \l__ctex_encoding_tl
       {
-        \tl_set:Nx \l__zhlipsum_tmpa_tl
+        \str_set:Nx \l__zhlipsum_tmpa_str
           { \str_lower_case:f { \l__ctex_encoding_tl } }
-        \str_if_eq:NNTF \g__zhlipsum_encoding_tl \l__zhlipsum_tmpa_tl
-          { \prg_return_true: } { \prg_return_false: }
+        \str_if_empty:NF \g__zhlipsum_encoding_str
+          {
+            \__zhlipsum_if_encoding:VF \l__zhlipsum_tmpa_str
+              { \__zhlipsum_warning:n { ctex-encoding-conflict } }
+          }
+        \str_gset_eq:NN \g__zhlipsum_encoding_str \l__zhlipsum_tmpa_str
       }
-      { \prg_return_true: }
   }
-\tl_if_exist:NTF \l__ctex_encoding_tl
+\__zhlipsum_msg_new:nn { ctex-encoding-conflict }
   {
-    \tl_if_eq:VnTF \l__ctex_encoding_tl { UTF8 }
-      { \tl_gset:Nn \g__zhlipsum_encoding_tl { utf8 } }
-      {
-        \tl_if_eq:VnT \l__ctex_encoding_tl { GBK }
-          { \tl_gset:Nn \g__zhlipsum_encoding_tl { gbk } }
-      }
+    Package~option~"encoding=\g__zhlipsum_encoding_str"~is~in~conflict~with~
+    ctex's~option~"\l__ctex_encoding_tl". \\
+    Changed~into~"encoding=\l__zhlipsum_tmpa_str".
   }
-  { \tl_gset:Nn \g__zhlipsum_encoding_tl { utf8 } }
 \ProcessKeysOptions { zhlipsum / option }
+\__zhlipsum_check_unicode_engine_encoding:
+\__zhlipsum_check_ctex_encoding:
+\str_if_empty:NT \g__zhlipsum_encoding_str
+  { \str_gset:Nn \g__zhlipsum_encoding_str { utf8 } }
 \tl_new:N \l__zhlipsum_name_tl
 \tl_new:N \l__zhlipsum_before_tl
 \tl_new:N \l__zhlipsum_after_tl
@@ -193,14 +189,14 @@
     \group_begin:
       \IfBooleanF {#1}
         {
-          \tl_set:Nn \l__zhlipsum_before_tl { \__zhlipsum_par: }
-          \tl_set:Nn \l__zhlipsum_after_tl  { \__zhlipsum_par: }
-          \tl_set:Nn \l__zhlipsum_inter_tl  { \__zhlipsum_par: }
+          \tl_set:Nn \l__zhlipsum_before_tl { }
+          \tl_set:Nn \l__zhlipsum_after_tl  { \par }
+          \tl_set:Nn \l__zhlipsum_inter_tl  { \par }
         }
       \IfValueTF {#3}
         {
           \keys_set:nn { zhlipsum } {#3}
-          \zhlipsum_use:Vn \l__zhlipsum_name_tl {#2}
+          \__zhlipsum:n {#2}
         }
         {
           \IfValueTF {#2}
@@ -208,19 +204,18 @@
               \__zhlipsum_if_key_value_list:nTF {#2}
                 {
                   \keys_set:nn { zhlipsum } {#2}
-                  \zhlipsum_use:Vn \l__zhlipsum_name_tl { 1 - 3 }
+                  \__zhlipsum:n { 1 - 3 }
                 }
-                { \zhlipsum_use:Vn \l__zhlipsum_name_tl {#2} }
+                { \__zhlipsum:n {#2} }
             }
-            { \zhlipsum_use:Vn \l__zhlipsum_name_tl { 1 - 3 } }
+            { \__zhlipsum:n { 1 - 3 } }
         }
     \group_end:
   }
-\prg_new_protected_conditional:Npnn \__zhlipsum_if_key_value_list:n #1 { TF }
-  {
-    \tl_if_in:nnTF {#1} { = }
-      { \prg_return_true: } { \prg_return_false: }
-  }
+\cs_new_protected:Npn \__zhlipsum:n #1
+  { \exp_args:No \zhlipsum_use:nn { \l__zhlipsum_name_tl } {#1} }
+\cs_new_protected:Npn \__zhlipsum_if_key_value_list:nTF #1
+  { \tl_if_in:nnTF {#1} {=} }
 \seq_new:N \l__zhlipsum_par_num_seq
 \cs_new_protected:Npn \zhlipsum_use:nn #1#2
   {
@@ -229,57 +224,47 @@
         \zhlipsum_if_exist:nTF {#1}
           {
             \__zhlipsum_parse_par:nn {#1} {#2}
-            \seq_pop_right:NN  \l__zhlipsum_par_num_seq \l__zhlipsum_tmpa_tl
-            \tl_use:N \l__zhlipsum_before_tl
-            \seq_map_inline:Nn \l__zhlipsum_par_num_seq
+            \seq_if_empty:NF \l__zhlipsum_par_num_seq
               {
-                \__zhlipsum_use:nn {#1} {##1}
-                \tl_use:N \l__zhlipsum_inter_tl
+                \seq_pop_right:NN  \l__zhlipsum_par_num_seq \l__zhlipsum_tmpa_tl
+                \l__zhlipsum_before_tl
+                \seq_map_inline:Nn \l__zhlipsum_par_num_seq
+                  {
+                    \__zhlipsum_use:nn {#1} {##1}
+                    \l__zhlipsum_inter_tl
+                  }
+                \__zhlipsum_use:nn {#1} { \l__zhlipsum_tmpa_tl }
+                \l__zhlipsum_after_tl
               }
-            \__zhlipsum_use:nn {#1} { \tl_use:N \l__zhlipsum_tmpa_tl }
-            \tl_use:N \l__zhlipsum_after_tl
           }
           { \__zhlipsum_error:nn { invalid-name } {#1} }
       }
       { \__zhlipsum_error:n { CJK-invalid-encoding } }
   }
-\cs_generate_variant:Nn \zhlipsum_use:nn { Vn }
 \__zhlipsum_msg_new:nn { invalid-name }
   {
-    Name~ "#1"~ is~ unknown. \\\\
+    Name~ "#1"~ is~ unknown. \\
     Please~ use~ the~ pre-defined~ Chinese~ dummy~ texts~ or~
     declare~ new~ one.
   }
 \__zhlipsum_msg_new:nn { CJK-invalid-encoding }
   {
-    The~ current~ CJK~ environment~ uses~ "\tl_use:N \CJK@@@enc"~
-    encoding,\\
+    The~ current~ CJK~ environment~ uses~ "\CJK@@@enc"~ encoding,~
     but~ zhlipsum~ package~ has~ been~ loaded~ with~ the~ option~
-    "encoding=\tl_use:N \g__zhlipsum_encoding_tl".\\\\
+    "encoding=\g__zhlipsum_encoding_str". \\
     Please~ check~ the~ package~ options.
   }
 \prg_new_protected_conditional:Npnn \__zhlipsum_if_cjk_valid_encoding: { TF }
   {
     \tl_if_exist:NTF \CJK@@@enc
       {
-        \tl_set:Nx \l__zhlipsum_tmpa_tl { \str_lower_case:f { \CJK@@@enc } }
-        \str_if_eq:NNTF \g__zhlipsum_encoding_tl \l__zhlipsum_tmpa_tl
-          { \prg_return_true: }
+        \exp_args:NV \str_case:nn \g__zhlipsum_encoding_str
           {
-            \__zhlipsum_if_encoding:nTF { gbk }
-              {
-                \str_if_eq:VnTF \l__zhlipsum_tmpa_tl { gb }
-                  { \prg_return_true: } { \prg_return_false: }
-              }
-              {
-                \__zhlipsum_if_encoding:nTF { big5 }
-                  {
-                    \str_if_eq:VnTF \l__zhlipsum_tmpa_tl { bg5 }
-                      { \prg_return_true: } { \prg_return_false: }
-                  }
-                  { \prg_return_false: }
-              }
+            { utf8 } { \str_if_eq:VnTF \CJK@@@enc { UTF8 } }
+            { gbk  } { \str_if_in:NnTF \CJK@@@enc { GB   } }
+            { big5 } { \str_if_eq:VnTF \CJK@@@enc { Bg5  } }
           }
+        { \prg_return_true: } { \prg_return_false: }
       }
       { \prg_return_true: }
   }
@@ -408,7 +393,7 @@
     \tl_const:cn
       { c__zhlipsum_ #1 @ \int_use:c { g__zhlipsum_ #1 _int } _tl } {#2}
   }
-\file_input:x { zhlipsum- \g__zhlipsum_encoding_tl .def }
+\file_input:x { zhlipsum- \g__zhlipsum_encoding_str .def }
 \endinput
 %%
 %% End of file `zhlipsum.sty'.