Quebrando o parágrafo em linhas com courier na tabela cals

Quebrando o parágrafo em linhas com courier na tabela cals
\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}

Responder1

Isto é semelhante aComo fazer com que seções longas \texttt sejam quebradas. Por padrão, a ttfonte não possui espaços extensíveis entre palavras e, portanto, não há muito espaço para o TeX manobrar ao escolher quebras de linha. Adicionar alguma elasticidade melhora a quebra da linha:

Exemplo de saída

\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}

Responder2

É sempre importante tentar quebrar palavras nas ttfontes.

Você pode tentar usar um sloppyparambiente:

\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}

Saída:

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