使用python从LaTeX文件中提取特定部分 [英] Extract specific section from LaTeX file with python

问题描述

我有一组LaTeX文件.我想为每一个提取抽象"部分:

I have a set of LaTeX files. I would like to extract the "abstract" section for each one:

\begin{abstract}

.....

\end{abstract}

我在这里尝试过建议:如何解析LaTex文件

I have tried the suggestion here: How to Parse LaTex file

并尝试过:

A = re.findall(r'\\begin{abstract}(.*?)\\end{abstract}', data)

其中 data 包含来自 LaTeX 文件的文本.但是 A 只是一个空列表.任何帮助将不胜感激！

Where data contains the text from the LaTeX file. But A is just an empty list. Any help would be greatly appreciated!

推荐答案

.* 不匹配换行符，除非给出re.S标志:

.* does not match newlines unless the re.S flag is given:

re.findall(r'\\begin{abstract}(.*?)\\end{abstract}', data, re.S)

示例

考虑此测试文件:

Example

Consider this test file:

\documentclass{report}
\usepackage[margin=1in]{geometry}
\usepackage{longtable}

\begin{document}
Title maybe
\begin{abstract}
Good stuff
\end{abstract}
Other stuff
\end{document}

这得到了摘要:

>>> import re
>>> data = open('a.tex').read()
>>> re.findall(r'\\begin{abstract}(.*?)\\end{abstract}', data, re.S)
['\nGood stuff\n']

文档

在 re 模块的网页中:

Documentation

From the re module's webpage:

re.S
re.DOTALL

re.S
re.DOTALL

设为."特殊字符与处的任何字符匹配全部，包括换行符；没有此标志，."会匹配任何东西除了换行符.

Make the '.' special character match any character at all, including a newline; without this flag, '.' will match anything except a newline.

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