{macros} is for questions specifically concerning TeX's macro processor. Note that, because TeX uses macros ubiquitously, most questions about code that uses macros are not looking for information about how macros work, and so are not appropriate for this tag.

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2
votes
1answer
20 views

How to make more-than-9-argument-commands work with tabular?

I have a command that needs more than 9 arguments. I stumbled over this solution: How to define a command that takes more than 9 arguments. This works fine in regular text. But I tried using this ...
1
vote
1answer
47 views

Generating a list with macros using tasks package

I cannot figure out how to generate a list with the tasks package using macros. If you swap the three identified lines in the MWE below, you should get the following error message: \begin{tasks} on ...
7
votes
2answers
243 views

How to repeat over all characters in a string?

I have a command that formats a single character, let's call it \d{}. (In my case, \d{} adds a dot under a Chinese character, as this is the custom to emphasize Chinese texts). I want to define a ...
0
votes
0answers
25 views

Splitting commands over multiple lines

We have a command used to typeset things in a specific font and colour. Sometimes, what is given to this command is large and it needs to be split into multiple lines within the same align or ...
2
votes
1answer
27 views

Double backslash or \cr in \newcommand to be used in a table

I have a \newcommand*\mycmd[3]{#1 & #2 & #3 \\} that is used in a tabular environment later, like this \begin{tabular}{ccc} \mycmd{a}{b}{c} \mycmd{d}{e}{f} \end{tabular} But the double ...
2
votes
1answer
39 views

Compare Variables

I want to have a macro that checks if the string has been used in the previous call of the macro as well. I found some examples here how to create switch structure comparing strings in latex but I ...
2
votes
0answers
13 views

Using one group separator for integer part and another for decimal part (siunitx) (modified) [duplicate]

I found this link Using one group separator for integer part and another for decimal part (siunitx) the code from jfbu is almost perfect, except I need grouping of three on each side of the decimal. ...
5
votes
2answers
178 views

Capacity exceeded while implementing lookup table

I'd like to implement simple key-value lookup table. I wanted to do it in functional fashion, so I've defined initial state of such table as get function causing error (as table is initially empty). ...
2
votes
1answer
58 views

Include LaTeX commands from external file in asymptote file

I have many asymptote drawings in a .asy file whose generated pdf is included in a main.tex. I have many user-defined commands, like \vec or \vxi which I use in my current main.tex and I want to use ...
1
vote
1answer
56 views

Fixing a class file

This may be a problem with too narrow an audience for this forum, but I'm rather stuck at the moment. I'm attempting to build my dissertation document. My school's style guide is decidedly ...
27
votes
3answers
433 views

How to define phantoms for depth and height?

In the third "dangerous bend" on page 178 of of The TeXbook there's the following description of \vphantom: Even more useful than \phantom is \vphantom, which makes an invisible box whose height ...
2
votes
2answers
52 views

Check options in \newcommand or \NewDocumentCommand?

I'm trying to implement a custom command that is called like this: \mycommand[hello][world]{mandatory1}{mandatory2} OR: \mycommand[hello,world]{mandatory1}{mandatory2} However, I can't figure ...
4
votes
1answer
149 views

Calculate the hash (MD5 or otherwise) of a string

I'm trying to cache the results of a macro, similar to that question, but the argument of the macro can contain arbitrary characters and it's not suitable to be inside \csname ... \endcsname. So, I'm ...
1
vote
1answer
31 views

Custom linespacing in a parbox

Is there a way to set the line spacing into a \parbox? What I am trying to do is create a new command from a \rotatebox and \parbox and assign locally, i. e. only inside of the \parbox, custom line ...
5
votes
1answer
60 views

build a capitalized CS from a lowercase string and to give it a definition

Is it possible to build a capitalized Control Sequence from an argument of lowercase string and to give it a definition? I tested two codes, but both didn't work well. code1: \def\makecs#1#2{% ...
2
votes
1answer
62 views

How can branch if I'm in a halign or not?

Edit: It seems that I can use \noalign\bgroup before the \halign. That's fine. But how do I test that I'm inside the halign group? I'm able to write an own if, but it would be better to ask tex for ...
104
votes
2answers
59k views

How do I create an invisible character?

I cannot remember how to create an invisible character in LaTeX, i.e. I want to put a space the that has the width of a particular character, say `M'. I know there is a command for this, and this is ...
3
votes
2answers
133 views

Writing literal “#1” into an auxiliary file from a command with arguments

I am trying to write into an auxiliary file from a command with one argument. The written text is another \createcommand with one argument too. When I use "#1" the argument of meta-command is ...
0
votes
1answer
59 views

How to use color declarations in titles?

How can I use color declarations when setting the title of a document? I tried \title{\color{blue} Colors in typesetting} but I get an error from LaTeX. Update: The error reads as followed: ...
9
votes
4answers
348 views

Problem using macros to define tree substructures

Relatively simple problem: I want to use macros to define substructures of a tree. In the following example for illustration, I want to define some children (left and right) to be used several times ...
2
votes
2answers
103 views

Why does \edef produce an error if its arguments is a command that takes an argument?

If I have the following piece of code, everything compiles: \documentclass{article} \newcommand{\mycmd}{ \edef\tmpcmd{test} % No commands with arguments \tmpcmd } \begin{document} \mycmd ...
0
votes
0answers
13 views

\edef together with microtype generates an error [duplicate]

In a previous question, I asked why \edef produced an error when trying to expand commands that takes an argument in the belief that this was the cause of it. But in actuality, I've realized that the ...
1
vote
0answers
18 views

Consistent formatting for \glft in expex

In the ExPeX documentation, all of the examples with \glft wrap the glos with single quotes; the examples in my document look the same: \pex \begingl \gla bu nɛmə // \glb this what // \glft `What's ...
3
votes
1answer
26 views

How can I use \noexpand and \unexpanded without appending a space to the unexpanded tokens?

One of my current tasks involves composing an auxiliary file with extra commands to be loaded at a separate compilation. Here's an MWE: \documentclass{memoir} \newwrite\testaux ...
1
vote
0answers
33 views

Typeset code within a simple macro?

I want to use a macro to typeset programming code with the usual characteristics (particularly lines should be obeyed - this is the most important issue; highlighting and such stuff is - for now - not ...
8
votes
1answer
66 views

xparse's \DeclareDocumentEnvironment gives error on already-defined environment

I'm trying to redefine an existing environment subfigure defined by the subcaption package. To do this, I'm using xparse's DeclareDocumentEnvironment since that's suppose to declare a new environment ...
1
vote
1answer
21 views

How can I include external macros for every line of the source code?

An answer to my last question gave a solution for hooking a small command onto line breaks in the TeX source. \documentclass{memoir} \usepackage[spacing, tracking]{microtype} \usepackage{libertine} ...
7
votes
1answer
90 views

Accent i in plain TeX fails inside array loop

In Plain TeX, when I try to create an array of control sequences (\word0, \word1, etc.) and print it out using a loop, TeX stumbles over the accented-i control sequence \'{\i}. I get this error: ! ...
1
vote
1answer
58 views

Macro/shortcut for defining text portion as code

I'm currently converting my thesis into LaTeX, and i have an issue: being an IT thesis, I have tons of code quotes. The problem is not about the blocks of code: they are not that many and i can wrap ...
5
votes
2answers
142 views

New environment, orphan line

I created three environments for my document: a booklet for a treasure hunt with scrreprt. I created 3 environments (the document is in french): enigma: ...
1
vote
2answers
34 views

\newcommand error

I am using following new command: \newcommand{\legend}[3]{ \begin{itemize} \item Serial Number: #1 \item #2 \item #3%\href{http://#3}{#3}} \end{itemize} } \legend}{5, April 2015, ...
13
votes
3answers
1k views

Hooking every line of the source code

I've been considering a more radical solution to the problem k.t.hagen posed a while back. Would it be possible (perhaps by catcode hijacking) to put hooks on individual lines of the source code? ...
3
votes
1answer
122 views

How to make a function inside the tikzpicture behave like outside

I have a macro which generates a structure (rule) and a reference to that structure. It does not behave when inside a tikzpicture. How to make the function robust to reference the structure even when ...
3
votes
3answers
105 views

Optional newpage command

Does there exist a command (which I will call \newpageoptional) which acts in the following way: Text and code 1 \newpageoptional{ Text and code 2 } Text and code 3 The effect ...
3
votes
1answer
60 views

Style stored in command

I have created a \newcommand with some arguments that allow me to call an other command. Command syntax: \newcommand{\nodeperso}[1]{\node[\noexpand\type#1](){\noexpand\nom#1};} I have declared a ...
2
votes
1answer
46 views

Referencing custom environment

I am using \begin{figure} \includegraphics{} \caption{Caption} \label{fig:fig_name} \end{figure} and \begin{table} \begin{tabular} .... \end{tabular} \caption{Caption} \label{tab:table_name} ...
0
votes
0answers
59 views

Is there a LaTeX-to-HTML package that uses TeX?

I know that there are a lot of ways to "convert" LaTeX source to HTML markup that, when rendered, resembles the hypothetical original PDF. Is there such a package that works within LaTeX? I'm ...
0
votes
0answers
20 views

Putting a commonly-used piece of text in a new command [duplicate]

I am working on a document in which I need to insert a long piece of text for several times. In order to avoid writing the same long piece of text over and over again, I decided to define a new ...
1
vote
1answer
264 views

TeX4HT Equation unchanged with newcommand or def command

I would like to convert all the inline-math and display-math should be LaTeX format only and not for image. I had referred tex4ht leaving equations unchanged and tex4ht leaving equations unchanged - ...
0
votes
1answer
62 views

How to repeat cell content with slight modifications on next page for longtable using multirow using LaTex

Given this approach: How to Repeat Cell Content on Next Page for \longtable using \multirow What if I wanted to slightly "modify" the text that is repeating so that on the originating page I want to ...
0
votes
0answers
39 views

Writing modular classes

As an OOP programmer, I am very attracted to the idea of making separate files for independent features within a class definition, where each feature I feel is too long to be included inline in the ...
4
votes
1answer
96 views

Use newcommand in newenvironment

I want create an environment with newenvironment that does the following: it evaluates the height of the environment and then prints it as many times (textheight/height) as will fit upon one page. ...
5
votes
2answers
273 views

How to get rid of “c-cedilla” in math mode?

This code: \documentclass{scrartcl} \providecommand{\c}{\mathrm{c}} \begin{document} Complement of $A$: $A^\c$. \end{document} Produces the following error: ! Missing { inserted. <to be read ...
1
vote
1answer
65 views

How to name arguments in \newcommand?

How to name the arguments in \newcommand so that when you call the macro they don't appear as {arg1}{arg2}... etc. but with the names each argument represent {caption}{label}... etc. without the use ...
5
votes
3answers
99 views

how to toggle displaying English and Chinese content, and always showing math content?

I'm about to draft a document that each paragraph will have English and Chinese version, and there are also some math formulas. For example, suppose the latex content is something like this: English ...
1
vote
1answer
38 views

Problem with \titleprefixword

I'm trying to make a songbook with Songs Package. The songs are in Spanish and I want to use the \titleprefixword macro to avoid sorting my song titles starting with the articles (El, La, Los, Las). ...
2
votes
1answer
52 views

Can one modifiy an argument within its macro?

I wish to give a default value to a series of arguments when they are empty. I could make a test prior the use of the argument and modify the value just before each of the usage. I could even make a ...
3
votes
0answers
39 views

mouse over (highlight) acronyms using acronym package. is that possible?

Is it possible to highlight acronyms (mouse over shows the acronym definition) by using the acronym package \ac ....? In this post, there is a macro that was working somehow but by using the acro ...
0
votes
0answers
25 views

Creating a myenumerate-environment with a counter [duplicate]

I want to have the counter use roman numbers, so it should be something like: (i) ... (ii) ... (iii) ... I tried defining a macro \myitem, but it´s not really working. Does any have any ideas?
20
votes
4answers
2k views

Detect beginning of a sentence in a macro for capitalization

Is it possible to make macros give different results at the beginning of a new sentence? Suppose that I want the macro "\secname" to write "Section" at the beginning of a new sentence, and "section" ...