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

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4
votes
1answer
318 views

How to compare two dates using TeX primitives

This is a follow up to TeX capacity exceeded while parsing a date string I want to compare two dates, say today's date and a due date. I have the due date information stored (as number strings) in ...
10
votes
3answers
566 views

TeX capacity exceeded while parsing a date string

I'm trying to parse a date (say, a due date) in a DD-MMM-YYYY format, e.g., 06-May-2012 and create macros \dueday, \duemonth, and \dueyear. I use xstring's commands to extract the substrings. Then I ...
2
votes
3answers
507 views

How to replace an expression in several TeX files?

Can I replace all instances of one string expressions in the TeX files in one directory? For example, let's say I want to replace all \frac with \myfrac in more than one file simultaneously.
1
vote
2answers
867 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 \\}...
8
votes
1answer
746 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
177 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 ...
5
votes
2answers
424 views

String test, with complicated arguments

I have a command \mycom{} which takes 1 argument. The command should perform a test on the argument and do something accordingly. For simple arguments, I can use \ifthenelse, but I need to consider ...
20
votes
3answers
3k views

Extract first & last characters of macro argument?

In LaTeX, how do I extract/isolate/determine the first and last characters of a macro argument? Specifically, in the case I'm dealing with, the argument happens to be a base-10 integer (call it N). ...
11
votes
3answers
2k views

Extract number from string and compare problem

I try to extract the year, month and day from a string and write different text depending on the given date. I thought I could use xstring and etoolbox, but I can'st get it to work. Here's the code ...
3
votes
0answers
115 views

listings bug: space after quote collapsed when inlined with spaceflexible/fullflexible columns [duplicate]

Possible Duplicate: listings bug: space after literate replacement lost with spaceflexible/fullflexible columns I seem to have stumbled upon a minor bug in listings (version 1.4 as of 2007/02/...
2
votes
2answers
271 views

String manipulation in ConTeXt

The ConTeXt wiki has an article about string manipulation, however, when I copy the code directly into my tex file, it compiles this code as text and does not try to compile it. There must be some ...
7
votes
1answer
660 views

BibTeX author tag string limitation

I've stumbled upon a limitation within BibTeX. I have to cite a medline entry which admittedly has a huge list of authors. When I take them all, LaTeX refuses to compile my document, when they're ...
5
votes
1answer
178 views

Substituting strings only when not bounded by letters or numbers

Using StrSubstitute from xstring I can find and replace matches. For e.g.: \StrSubstitute{I like to eat fish.}{fish}{apples} gives "I like to eat apples." \StrSubstitute{Do you want to eat?}{eat}{...
10
votes
2answers
3k views

Replacing characters in argument strings

I am trying to create a LaTeX command that will allow me to insert pre-defined tables with a minimum of fuss. This will also allow me to change the overall format of tables (e.g. caption above or ...
3
votes
2answers
205 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)}{+} $\sumup{n}$\\ \...
9
votes
1answer
20k views

Using string variable with LaTeX

I would like to define one variable containing some text that can be changed locally. The following code gives one example of the featuring I'm looking for. \documentclass{article} \newcommand{\...
22
votes
3answers
29k 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
146 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
697 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
608 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 Cir....
8
votes
1answer
221 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
610 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
382 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
520 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: \newcommand{\toindex}[...
6
votes
3answers
562 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
293 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 ...
7
votes
2answers
3k 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 ...
5
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
716 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
890 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
415 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
346 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
392 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
198 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
197 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
431 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
1k 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 \mystart{\...
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
296 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
311 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
7k 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 xxx"....
6
votes
2answers
393 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
5k 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
335 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
232 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 ...