cals テーブルで courier を使用して段落を行に分割する

Question

\documentclass[10pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[a4paper]{geometry}
\geometry{top=10mm, bottom=10mm, left=10mm, right=10mm}
\geometry{showframe}
\usepackage{courier}
\usepackage[T1]{fontenc}
\usepackage{cals}

\makeatletter

\begin{document}
%\renewcommand*\familydefault{\sfdefault}
\renewcommand*\familydefault{\ttdefault}
\normalfont

\begin{calstable}

\colwidths{
{15pt}
{10pt}
{515.60239pt}
}
\cals@paddingL=1pt
\cals@paddingR=1pt
\def\cals@borderT{0.2pt}
\def\cals@borderB{0.2pt}
\def\cals@borderL{0.2pt}
\def\cals@borderR{0.2pt}
\brow
\alignR \cell{\strut E}
\alignC \cell{\strut =}
\alignL \cell{\strut this is the english text, this is the english text, this is the english text, this is the english text, this is the english text, this is the english text, this is the english text}
\erow

\end{calstable}

Why doesn't the text break in the rigth place? In case of using sfdeault, it's good. 
\end{document}

Answer 1

これは長い\textttセクションを分割する方法デフォルトでは、ttフォントには伸縮可能な単語間スペースがないため、改行を選択する際に TeX が操作できる余地はあまりありません。伸縮性を追加すると、改行が改善されます。

\documentclass[10pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[a4paper]{geometry}
\geometry{top=10mm, bottom=10mm, left=10mm, right=10mm}
\geometry{showframe}
\usepackage{courier}
\usepackage[T1]{fontenc}
\usepackage{cals}
\makeatletter

\newcommand*\flextt{%
  \ttfamily
  \fontdimen2\font=0.4em% interword space
  \fontdimen3\font=0.2em% interword stretch
  \fontdimen4\font=0.1em% interword shrink
  \fontdimen7\font=0.1em% extra space
}

\begin{document}
\flextt

\begin{calstable}

\colwidths{
{15pt}
{10pt}
{515.60239pt}
}
\cals@paddingL=1pt
\cals@paddingR=1pt
\def\cals@borderT{0.2pt}
\def\cals@borderB{0.2pt}
\def\cals@borderL{0.2pt}
\def\cals@borderR{0.2pt}
\brow
\alignR \cell{\strut E}
\alignC \cell{\strut =}
\alignL \cell{\strut this is the english text, this is the english text, this is the english text, this is the english text, this is the english text, this is the english text, this is the english text}
\erow

\end{calstable}

Why doesn't the text break in the rigth place? In case of using sfdeault, it's good. 
\end{document}

Answer 2

ttフォント内の単語を分割しようとすると、いつも大変なことになります。

次の環境を使用してみてくださいsloppypar:

\documentclass[10pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[a4paper]{geometry}
\geometry{top=10mm, bottom=10mm, left=10mm, right=10mm}
\geometry{showframe}
\usepackage{courier}
\usepackage[T1]{fontenc}
\usepackage{cals}

\makeatletter

\begin{document}
%\renewcommand*\familydefault{\sfdefault}
\renewcommand*\familydefault{\ttdefault}
\normalfont

\begin{calstable}

\colwidths{
{15pt}
{10pt}
{515.50239pt}
}
\cals@paddingL=1pt
\cals@paddingR=1pt
\def\cals@borderT{0.2pt}
\def\cals@borderB{0.2pt}
\def\cals@borderL{0.2pt}
\def\cals@borderR{0.2pt}
\brow
\alignR \cell{\strut E}
\alignC \cell{\strut =}
\alignL \cell{\begin{sloppypar}\strut this is the english text, this is the english text, 
this is the english text, this is the english text, this is the english text, 
this is the english text, this is the english text\end{sloppypar}}
\erow

\end{calstable}

Why doesn't the text break in the rigth place? In case of using sfdeault, it's good.
\end{document}

出力：