{strings} are sequences of characters (most commonly literal constants).

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19
votes
3answers
24k 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
143 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
657 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 ...
7
votes
2answers
593 views

Replace characters in string based on preceding and following character

The following two strings are the result of the expansion of a biblatex citation command: Unicom Computer Corp. (in re), 13 F.3d 321, 30 Collier Bankr. Cas. 2d 655, 25 Bankr. Ct. Dec. 152 (9th ...
8
votes
1answer
217 views

How to place a # character in a message?

How can I place a # symbol inside of a \PackageWarning inside of a macro definition? I tried: \PackageWarning{package}{# or \# or \string# or \hash} but either ## or unknown (for \hash) or Illegal ...
7
votes
1answer
598 views

string manipulation and catcodes

I want to detect whether an input line contains a certain substring, similar to the problem discussed here: Check if a string contains a given character The complicating problem is that the match ...
0
votes
1answer
3k 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 ...
8
votes
2answers
378 views

Words of more than 32765 characters

When I compile the following document: \documentclass[10pt, oneside, a4paper]{report} \begin{document} xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx \end{document} where the number of x's is greater than ...
3
votes
2answers
514 views

Split long string into paragraphs

How can I test a string to see if it has more than one paragraph, and split a string that contains multiple paragraphs into two strings, one with the first paragraph of the original, one with the ...
3
votes
1answer
1k views

Letting strings start with a capital letter

I am writing a small book and try to build up an index reference. To make it a little easier I wrote a small script that enables my to type a word and also add it to the index: ...
6
votes
3answers
545 views

Conditionally including a TikZ figure

I have the following construction for a figure. The background is, when \submit is defined, only the caption is included, but no figure. Otherwise the figure is included. The problem is that I have ...
6
votes
3answers
286 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 ...
6
votes
2answers
2k views

How to concatenate strings, to e.g. create commands that return lists?

I was thinking about Felix' Question, where he wanted to return lists in TikZ. My approach so far was to return the single results as individual \nodes, separated one centimeter each. Now I would like ...
4
votes
4answers
1k views

Generating dummy text programatically using TeX/LaTeX

As part of an attempt to debug another problem, I have a need for a TeX/LaTeX command that generates some dummy text in place. I know of lipsum and blindtext, but they are not what they want. What I ...
6
votes
3answers
698 views

Programmatically setting a counter to a substring

I'm trying to set a counter based on the name of the current job. I've got the number I need by doing something like \substring{\jobname}{5}{5}} using the stringstrings package, and if I just output ...
1
vote
1answer
848 views

Using \footnotesize in tikz node labels

I have used \footnotesize to scale labels before and it has produced the desired results. But am having problems when I pass this as part of the label to a macro. The following MWE compiles but not if ...
2
votes
2answers
394 views

Include LaTeX file named with substring of current filename

I'm frequently creating presentations with beamer and need both the handout and the presentation itself. To avoid editing the file when I need to compile the other, I use \ifdefined\ishandout ... at ...
1
vote
2answers
333 views

\pgfmathdectobase macro \pgfmathresult digit index or bitwise operators

Is there a way to access each digit of a macro returned by \pgfmathdectobase (or \pgfmathresult) which is a binary number ? This would be useful for a function which prints the power set of a given ...
6
votes
1answer
382 views

\StrLeft has no effect on \citetitle

\footfullcite uses too much space so I decided to define a own command. I called it \footshortcite. It only display a pre- and a post-Option and the Author with Year. However, I don't like that most ...
3
votes
1answer
191 views

Force stringification of a length

I'm trying to include a background image of the correct size based on the two variables \IApaperheight and \IApaperwidth. To do this, I'm converting the lengths to a rounded text value and ...
5
votes
2answers
195 views

Changing catcode for commercial at (@) inside a macro to get it matched in pattern.

This question is related to TikZ: pgfutil-common: pgfutil@in@ - how does it work? and is a result of coping with that problem. I've already read How to change #catcode in a macro, but it didn't help ...
5
votes
1answer
426 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
988 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 ...
6
votes
2answers
1k views

Nest StrLen and ifthenelse commands

Here is a sample of code I am working on: \documentclass[10pt]{report} \usepackage{xstring} \usepackage{ifthen} \begin{document} \StrLen{123456}\\ %Prints 6 ...
2
votes
4answers
294 views

Replacing entries in a csv list

I want to replace entries in a csv list, where the list parser can be arbitrary (eg: ,;:|). An example follows: \def\x{r;s;t;x;y;z} In this list I want to efficiently replace r,t,x by a,b,c via, ...
8
votes
1answer
307 views

How do I store the upper case counterpart of a string?

I have a string stored in a variable \word, and I want to store its upper case counterpart in another variable \WORD. If I try \def\WORD{\MakeUppercase{\word}} \show\WORD then the message ...
24
votes
2answers
6k 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
1k 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 ...
6
votes
2answers
386 views

xstring functions in section/paragraph headers

In the following example, \documentclass{article} \usepackage{xstring} \newcommand\foo[1]{\StrSubstitute{#1}{love}{hate}} \begin{document} \section*{\foo{I love Mondays}} \end{document} if I ...
13
votes
1answer
4k views

Replacing a substring

I've got a string like this: aXYbXYc, and need to replace the XY substring with a right arrow: a $\to$ b $\to$ c. Is there any function (also provided by external packages) to help me do that?
8
votes
3answers
1k views

Evaluating a string to a command

How do I construct a string in LaTeX (perhaps with variables) that calls the LaTeX macro with the corresponding name? For example, say I have defined a comment as \def\Comment1{Example text.} and ...
5
votes
1answer
332 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). ...
0
votes
1answer
227 views

stringstrings replacement for XeTeX?

To construct a lower-case filename out of the mixed-case argument given to a command, I used stringstrings in LaTeX. Now I switched to XeTeX and it seems the fontspec-package has some interference ...
27
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 ...
11
votes
3answers
2k views

String replacement in LaTeX

I'd like to know how to replace parts of a string in LaTeX. Specifically I'm given a measurement (like 3pt, 10mm, etc) and I'd like to remove the units of that measurement (so 3pt-->3, 10mm-->10, ...
13
votes
2answers
1k views

LaTeX: collecting “values” and spitting them out several times?

I'm cleaning up some old LaTeX documents describing an API. In the process I'm creating my own little style for describing the API, but I've bumped up against a bit that seems to force me into a ...