update: build english pdf

pdf/en-us/aggregator.py

@@ -5,7 +5,7 @@ import os
 
 chapters = ['00-preface.md', '01-intro.md',  '02-usability.md', '03-runtime.md', '04-containers.md', '05-pointers.md', '06-regex.md', '07-thread.md', '08-filesystem.md', '09-others.md', '10-cpp20.md', 'appendix1.md', 'appendix2.md']
 
-ignores = ['TOC', 'Return to TOC', 'License', 'license']
+ignores = ['TOC', 'Table of Content', 'License', 'license']
 
 
 with open('modern-cpp-tutorial.md', 'w') as outfile:

pdf/en-us/meta/template.tex

@@ -15,11 +15,7 @@
 \usepackage{amssymb,amsmath}
 \usepackage{ifxetex,ifluatex}
 
-\linespread{1.2}\selectfont                       % 行距
-%\XeTeXlinebreaklocale "zh"                        % 针对中文自动换行
-%\XeTeXlinebreakskip = 0pt plus 1pt                % 字与字之间加入 0pt 至 1pt 的间距，确保左右对齐
-%\parindent 0em                                    % 段落缩进
-%\setlength{\parskip}{20pt}                        % 段落间距
+\linespread{1.2}\selectfont
 \ifxetex
   \usepackage{xltxtra,xunicode}
 \fi
@@ -140,22 +136,23 @@ $endif$
 \author{$for(author)$$author$$sep$ \and $endfor$}
 \date{$date$}
 
-%%%% 段落首行缩进两个字 %%%%
 \makeatletter
 \let\@afterindentfalse\@afterindenttrue
 \@afterindenttrue
 \makeatother
-\setlength{\parindent}{2em}  %中文缩进两个汉字位
+\setlength{\parindent}{2em}
 
-%%%% 下面的命令设置行间距与段落间距 %%%%
 \linespread{1.4}
 \setlength{\parskip}{1ex}
 \setlength{\parskip}{0.5\baselineskip}
 
+\input{revision}
+% fix build, see https://github.com/laboon/ebook/issues/139#issuecomment-408696480
 
+\newcommand{\passthrough}[1]{\lstset{mathescape=false}#1\lstset{mathescape=true}}
 \begin{document}
 
-\newcommand{\tightlist}{%
+\newcommand{\tightlist}{
   \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
 
 \thispagestyle{plain}