3
votes
2answers
75 views

Generate comma separated list with some non-empty strings

I'm trying to generate a comma separated list that uses strings that may or may not be empty. For example \mylist{\stringA,\stringB,\stringC} would expand to A, C if B is empty or B, C if A is empty, ...
3
votes
1answer
67 views

convert string to active character

in my book I will have to itemize a lot of things in different lists. That's why I want to reduce my commands to a minimum. This script is just part of a bigger macro. \documentclass{book} ...
2
votes
1answer
103 views

Writing macros for tikz-cd arrow options

I'm trying to write a macro to let me write shorthand for tikz-cd arrows. For instance instead of having to write out the full command \arrow[swap, dotted]{r}{f^*} I'd like to have a shorthand ...
5
votes
1answer
43 views

Using \newcommand to format numbers/strings according to a pattern [duplicate]

I'm an aspiring LaTeX user and have so far managed the first steps and created my first few documents. Coming from a programming background I've been wondering how you could use \newcommand to create ...
6
votes
1answer
159 views

Can I define a variable that contains a URL (youtube) and call \includemedia with it?

I can successfully embed a video in my latex file using a syntax like this: \documentclass[10pt,letterpaper]{book} \usepackage[latin1]{inputenc} \usepackage{amsmath} \usepackage{amsfonts} ...
10
votes
3answers
196 views

how to select a character (or word) from a list

Is there a way, with the following restrictions: No external pacakges (i.e., no substr) no conditionals (\ifnum, \ifdefined, etc) to select a character from a string? i.e. \CharAt{2}{ABC} ...
2
votes
1answer
125 views

Macro to get character width in ConTeXt

Background Looking to adjust the location of the first letter in a word based on its width. Problem The calculation resembles: \define[1]\StyleChapterChar{% \cldcontext{string.sub("#1",1,1)}% } ...
3
votes
2answers
82 views

Replace and add a/to a specific sequence of tokens

Is there a way to find a specific sequence of tokens and add after it a command? Or is there a way to find a specific sequence of tokens and replace it with another one? And do it only if the sequence ...
32
votes
6answers
2k views

Censoring Curse Words with Grawlixes

Suppose that I would like to censor a curse word <word> using grawlixes, e.g. "What the #@$! are you doing?!" How can I define a command \censor such that \censor{<word>} results in a ...
8
votes
2answers
158 views

How can I combine two text strings to represent the name of a command?

I want to combine one command with a text string to represent a second command. In MatLab it would be possible to concatenate these two strings into one string and evaluate this new string. However I ...
4
votes
1answer
151 views

Errors in passing a previously concatenated string to foreach

Motivation While attempting to answer Pie chart with values as angles not percent, I stucked on passing a string to a foreach. The context To makes things clear, I briefly introduce the context. ...
3
votes
2answers
126 views

How to store and append text for later use (inside enumerate environment)

I'd like to make a container in LaTeX in which I can store and append LaTeX-code for later use. I have found many solutions to what I'm basically try to do (here for instance), but if they work, ...
15
votes
3answers
313 views

Parsing strings containing diacritical marks (macros?)

I apologize that this question may seem very much like several other recent ones I have asked (Parsing leading hardspaces, Parsing a \$ as part of an improved \getargs command). They are all related ...
7
votes
1answer
190 views

How to detect that some macro expands to empty string or spaces only?

I need to check several macros and do some actions only if their expansion is not empty nor space only. In pseudo code I would look like this \if\macroToBeTested \doSomething ...
11
votes
3answers
2k views

How to concatenate strings into a single command?

I'd like to concatenate several parts of math text into a single command, and i read a great solution here on this site, allowing me to create this working example of what i mean : ...
1
vote
2answers
507 views

Arbitrary string assigned to variable?

How can I assign an arbitrary string - that may include special characters or even macronames - to a variable just as it is? e.g. like this: \newcommand{\mystring}{\assignstring{abc{}\w'\macroname ...
7
votes
1answer
539 views

Macro to extract (typeset) 'plain text' from a command?

Sorry to come back again with a similar post title (I had a post with this same title, then renamed it to PDF Metadata - Macro to extract (typeset) 'plain text' from a command?) - but I hope now the ...
2
votes
1answer
153 views

Xstring dealing with macros

I wrote the \bib command to reference authors in my thesis not using numeric or alpha references of natbib. It copies a piece of text, cut the first 60 characters (the width of my page} and put it ...
3
votes
2answers
173 views

Command representing an expansion of a summation

I am very new to using LaTeX to write equation. And I am now learning how to create my own command. I am going to write a command \Listn to help me to do this: \Listn{\sumup}{(#1)}{+} $\sumup{n}$\\ ...
15
votes
3answers
13k views

\uppercase in \newcommand

I tried to use \uppercase in \newcommand: \newcommand\universidad{My University} \newcommand\Universidad{\uppercase{\universidad}} When I use this I get My University and not MY ...
3
votes
1answer
132 views

Splitting parameters in a macro

I have a macro like this: \newcommand{\listanimals}[1]{ Animals in the farm: #1. } So using \listanimals{pig / sheep / cow / duck / goat} will print: Animals in the farm: pig / sheep / cow ...
17
votes
4answers
520 views

Extract the numerical and non-numerical portion from text

I would like to extract the leading number and subsequent text from a string. I have an idea of using the xstring package to gobble characters from the right until I end up with a number or an empty ...
0
votes
1answer
2k views

“backspace” a character

It's not really "backspace" a character: I define a command, for example \foo representing bar, actually a macro for replacement. I need to produce the string bars with \foo. It's impossible to just ...
6
votes
3answers
267 views

How to remove all dashes (-) using a macro?

In a package, I'm building macro names from the values of options passed to a function. Now, the values should also allow a - inside, but the command names I'm building with \csname do not. So, I need ...
5
votes
1answer
388 views

TikZ: pgfutil-common: pgfutil@in@ - how does it work?

Having been writing small lib for TikZ, I tried to use this macro in order to search for @. Code compiled, but the result was false, despite that I was sure it was in tested string. So, I decided to ...
2
votes
1answer
1k views

How to pass a \def parameter to an inner command (StrSubstitute)?

I'm attempting to create 2 macros to simulate an array list as in Java for example. I'm using xstring StrSubstitute for this purpose, but I'm having a problem. Below is the code, it's a bit long as it ...
6
votes
1answer
694 views

How to capture the result of \StrSubstitute into a macro?

I have a macro, say defined as follows: \edef \temp{A.input 1} I want to replace the dot with hyphen and have the result being stored in \mystart. Something like that: \edef ...
22
votes
2answers
4k views

How do I split a string?

I need to split a string into one or more substrings. I know that I could use the xstring package, but I'd like to do it using only inbuilt TeX/LaTeX commands. So, if I say \def\MyTeXKnowledge{Not ...
13
votes
7answers
992 views

How to get the string with \

Apologized for my unclear description. I wish I could explain my problem more clearly. In document, I wish I can just write something as "how to use \cmd \mbox in xxx" or "what is \cmd minipage ...
5
votes
1answer
325 views

Performing String Manipulation on result of \cite{}

I would like to perform some string manipulation (using the xstring package) on the result of a \cite{} (the bib package is given to me, and wouldn't allow what I want to do without a major rewrite). ...