Questions tagged [expandafter]
The expandafter tag has no usage guidance.
32
questions
1
vote
1
answer
52
views
Expanding Variables to Input as Arguments for Macro
I have an issue when trying to use variables in a command (\ResearchModule). I read up to 8 lines from a text file and have them set to elements of an array (using code thanks to egreg!), with \...
- 13
3
votes
1
answer
45
views
Generate \charge arguments with a macro
I'm trying to use a macro to generate arguments that should be passed to \charge. I'm trying this:
\documentclass{minimal}
\usepackage{chemfig}
\begin{document}
\charge{-135:1pt=5}{C}
\...
- 415
6
votes
3
answers
248
views
How to expand a command with \csname and \expandafter
I get it when I write:
\expandafter\def\agent{Hello}
\expandafter\def\expandafter\agent\expandafter{\agent World}
\agent
result: Hello World
It doesn't work for me when I write:
\expandafter\def\...
- 121
3
votes
3
answers
170
views
Define a new command as a loop of existing Latex commands
I want to define a new command, which is a composition of commands already defined within the \csvsimple package. Therefore I've written the following code, which correctly works for my purpose:
\...
- 43
1
vote
2
answers
65
views
Table csvreader: loop over columns
I have a csv file called "data.csv" containing the following data:
1,2,3
4,5,6
I am writing the following table in Latex by using \csvreader:
\begin{table}
\centering
\begin{tabular}{|c|c|c|}...
- 43
4
votes
2
answers
287
views
How to use \foreach and \newtheorem together?
I want to use \foreach and newtheorem together, so I've assigned an array with the package listofitems
\setsepchar{;/,}\ignoreemptyitems
\readlist\baz
{
theorem, lemma, definition, corollary,
...
- 558
2
votes
1
answer
115
views
Understanding `\expandafter` when checking nested `\csname…\endcsname`
Please consider the following MWE, which is an excerpt from a much larger project.
The scenario is to define a conditional \IfComp{<number>}{<defined>}{<undefined>} that queries, ...
- 2,762
1
vote
1
answer
43
views
amsart problem with typsetting title
I tried to implement a metalevel for the author and title commands, because most style files want them to be a little bit different and I want to be able to easily change the style file.
Long story ...
5
votes
1
answer
149
views
Question in Stephan's TUGboat article about \expandafter
In the first page of Stephan Bechtolshein's TUGboat article about \expandafter, he described the rules of the execution of \expandafter.
I think the case iii should not be listed here since the ...
- 4,494
0
votes
3
answers
132
views
How to understand "\appendroman#1#2#3" on page 41 of The TeXbook?
At the bottom of page 41 of The TeXbook, there is a question:
Define a control sequence \appendroman with three parameters such that \appendroman#1#2#3 defines control sequence #1 to expand to a ...
- 2,105
6
votes
2
answers
1k
views
Doesn't "\romannumeral1986" equal "mcmlxxxvi" in TeX?
In TeX,
\uppercase{\romannumeral1986}\par
%\catcode`\m=12
\uppercase{mcmlxxxvi}
\bye
produces
So, doesn't mcmlxxxvi equal \romannumeral1986? What the difference between them? \expandafter can bypass ...
- 2,105
0
votes
1
answer
50
views
How to expand from DLTforeach prior to function call
Apologies if this is a trivial problem, I've seen a lot of similar posts, but i have not been able to solve this.
Setup:
I have created a table based on this answer.
I have created a function for ...
- 3
0
votes
1
answer
63
views
Trying to expand items within a newglossaryentry in a generic function without causing the Improper alphabetic constant
I've looked at both these related topics, but my situation is a little bit different.
improper alphabetic constant with-glossaries
improper alphabetic constant
The first thing I found in the ...
- 335
5
votes
2
answers
102
views
Problem expanding math in arguments of en environment
I want to redefine by hand a "restatable" environment for theorems. I have to do so because for some obscure reason the jloganal class (for the Journal of Logic and Analysis) mess it up: ...
- 53
4
votes
3
answers
157
views
Command gobbling extra letters not working when passed another command
On another topic, I was given the following command as an answer: it takes either a two letter font shape (sc, it...) or a full version (scshape, itshape...) to set the corresponding font shape.
\...
- 5,327