ntheorem 标题样式更改

Question

我正在使用包ntheorem并framed创建类似的盒子1。有人知道如何将标题更改为以下顺序吗：

名称.计数器:参数

例如：尔格。 2：创建层次结构规则。響。音素

我的实际设置是：

\usepackage{framed}
\usepackage[hyperref, amsmath, amsthm, framed, thmmarks]{ntheorem}

\theoremstyle{break}
\theoremheaderfont{\normalfont\smallskip\scriptsize\bfseries}
\theorembodyfont{\normalfont\scriptsize}
\theoremindent0.5cm
\newframedtheorem{erg}{Erg.}

Answer 1

括号实际上是在样式定义中硬编码的break，因此需要更改定义。

\documentclass{article}

\usepackage{amsmath}
\usepackage{framed}
\usepackage[hyperref, amsmath, amsthm, framed, thmmarks]{ntheorem}

\makeatletter
\renewtheoremstyle{break}%
  {\item[\rlap{\vbox{\hbox{\hskip\labelsep \theorem@headerfont
          ##1\ ##2\theorem@separator}\hbox{\strut}}}]}%
  {\item[\rlap{\vbox{\hbox{\hskip\labelsep \theorem@headerfont
%           ##1\ ##2\ (##3)\theorem@separator}\hbox{\strut}}}]}% DELETED
          ##1\ ##2:\ ##3\theorem@separator}\hbox{\strut}}}]}% NEW
\makeatother

\theoremstyle{break}
\theoremheaderfont{\normalfont\smallskip\scriptsize\bfseries}
\theorembodyfont{\normalfont\scriptsize}
\theoremindent0.5cm
\newframedtheorem{erg}{Erg.}

\begin{document}

\begin{erg}[Description]
Some text.
\end{erg}

\end{document}