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10
votes
2answers
303 views

The different meanings of LaTeX's \stop command

we know that \stop will cause LaTeX to stop parsing and output what it has processed up to this command. But then I discovered another way to use it, as demonstrated in this minimum working ...
8
votes
1answer
382 views

xstring character comparison and \meaning

\documentclass[pdftex,a4paper,12pt,oneside]{book}% \usepackage{xstring} \begin{document} \newcommand{\tmpa}{} \newcommand{\tmpb}{} \newcommand{\tmpc}{} \renewcommand{\tmpc}{abcdefg} \noindent ...
14
votes
2answers
333 views

Every possible \meaning that a token can have

In the context of a debugging package that I am writing, I need to analyse an arbitrary token in the input stream. What are the possible outcomes of \meaning<token>? Macro: (\protected) ...
26
votes
2answers
1k views

Introspection and reflection with LaTeX/TeX macros

Below is a short program that can use \meaning and \string to let a combination of LaTeX and TeX commands to print out the listing of macros. Unsurprisingly (nothing can surprise me with TeX any ...