{etoolbox} is a package which provides several macros which take advantage of the {e-tex} extension of (La)TeX.

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6
votes
1answer
245 views

Using conditionals in tabular preamble with array

I'm trying to use a conditional in the column setup for my tabular. That is, the definition of one column (actually several columns) is dependent on a boolean value (as set up from the etoolbox ...
0
votes
1answer
75 views

Strange behaviour of ifnumequal?

If I use \cfoot to evaluate and print this section counter, it shows the correct section number in my appendix. However, when I evaluate the section counter using \ifnumequal, it shows that the ...
5
votes
1answer
121 views

csuse with foreach

Am having difficulty determining the correct syntax for using \csuse from the etoolbox package with a \foreach. I have a list, and for each element in this list I need to create a new list. To ...
9
votes
1answer
347 views

Macro to automatically save section name of previous section and next section

EDIT: I've edited the code that reproduces the anomalies, but I'll work on the code to more accurately depict the problem later on the day. Weird spacing in index Index doesn't appear in footlinks / ...
1
vote
0answers
59 views

When do variables in classes get evaluated? [closed]

I am developing a non-trivial class that is fairly large and complex. So far, everything has worked the way I designed it to be. I apologize ahead of time as I cannot provide a MWE as my question is ...
3
votes
1answer
171 views

\BeforeBeginEnvironment not doing anything?

I'm attempting to do something similar to Two column glossary, making an extant glossary style wrap into multiple columns. I've followed the suggestion in the comment to the first answer, i.e. use ...
5
votes
1answer
45 views

Reducing space before chapter works with english but not with hungarian babel package

I write my thesis recently and I want to reduce the spaces before chapters. I find the solution, but it isn't working for me with \usepackage[magyar]{babel} I use the following codes: ...
7
votes
1answer
129 views

Splitting a CSV list from a xkeyval key argument into parts

Is it possible to store the key value argument (a cvs list) to a macro (via \def) and split/further process the content of that macro with \forcsvlist command from etoolbox package? I want to ...
1
vote
2answers
198 views

Remove indentation from abstract environment with etoolbox

I have the abstract for my paper on a separate page, hence there is no need to have the extra indentation on either side of the abstract environment to indicate that it is an abstract. There is an ...
3
votes
3answers
1k views

Separation space between tableofcontents items in beamer

In beamer, I guess, the separation space between the items from tableofcontents is stretchable: Can you set it to a fixed value? e.g. to equal the value used in the itemize environment. Partial ...
16
votes
2answers
195 views

Does etoolbox's \ifboolexpr use lazy evaluation?

In other words, is bool{testB} evaluated at all in this example code? \newbool{testA} \newbool{testB} \booltrue{testA} \booltrue{testB} \ifboolexpr{ bool{testA} or bool{testB} }{OK}{Something's ...
5
votes
1answer
117 views

How to use \patchcmd to change section size in an AMS Article?

I am trying to change the size of the section title in the AMS Article document class from \normalsize to \large. Here is what I tried: \documentclass[]{amsart} \usepackage{etoolbox} ...
3
votes
1answer
104 views

Wrong placement for \preto using etoolbox

I'm observing that the adding a text to a list of tables (or figures) through \preto from etoolbox does not work properly when the table is placed on the next page if it does not fit the page where it ...
7
votes
1answer
118 views

\apptocmd into a conditional—why it does not work?

Why the following MWE does not work while if I comment the conditional it works? \documentclass{beamer} \makeatletter \@ifclassloaded{beamer}{ \usepackage{bookmark} \usepackage{etoolbox} ...
4
votes
1answer
119 views

Navigation circles shown for title page with patch for no-subsections

I'm trying to create a custom theme for beamer. However, when I tried to patch the navigation circles to be automatically included without subsections (using the solution of Beamer navigation circles ...
1
vote
1answer
219 views

Newcommand returning a boolean value

I'm using etoolbox. How can I create a new command that returns a boolean value? For example if I create the following command: \newcommand\ifkeyempty[1]{ \def\novalue{\pgfkeysnovalue}% ...
1
vote
1answer
76 views

Remove empty row inserted by etoolbox

I generate table with some conditional expression using toolbox package. \documentclass{article} \usepackage{etoolbox} \begin{document} \providetoggle{ch} \begin{tabular}{ |l|c|} \hline ...
7
votes
1answer
139 views

Hide an environment and show it later in the document

I am trying to set up an environment for making exercises with corresponding answers for students. Idea I would like to be able to write the text for an exercise in an environment, and directly ...
5
votes
0answers
27 views

Comparing last character(s) of the output of \ref to manipulate output [duplicate]

I am trying to write a command that will replace \ref in a special way. It will add some text next to the number based on the last character(s) of the number \ref outputs. I will try to explain this ...
1
vote
0answers
82 views

etoolbox preto command doesn't work when tocloft package is used

So I am trying to use: \preto\tableofcontents{ ... } to add something before ToC (and same thing for LoF and LoT) in the Class file (i.e. neither adding ... in the real .tex file, nor making ...
4
votes
1answer
148 views

change background if frame has no title

I would like to change my background canvas according to whether my frame has a title. This is the form I'm using (etoolbox): \setbeamertemplate{background canvas}{ ...
1
vote
1answer
97 views

Can a latex IF loop take a perl variable?

I have a script written in perl which harvest data from an sql database, then produces a printed report in latex. I was looking to put an IF loop in the latex part of the script to print one set of ...
6
votes
3answers
98 views

Tabular alignment issue in a loop

I'm getting some odd table alignment issues with a table that I'm constructing inside of a \whileboolexpr. The .tex file is the following: \documentclass{article} \usepackage{etoolbox} ...
4
votes
2answers
402 views

Concatenate macro with string

I try to expand a macro containing a string with another string. It is in the document and thus I want to avoid using @. I tried the following using etoolbox ...
4
votes
1answer
58 views

Strange behaviour of \iftoggle inside tikzpicture

I want to set flag from inside of decoration which I want to check outside of the decoration. I set the flag (call \toggletrue{} or \togglefalse{}) but when I check this flag it always false. For MWE ...
1
vote
1answer
129 views

Adding tables to list of tables with custom chapter breakdown

Running the code below is supposed to modify my list of tables to show the Chapter number above each set of tables related to that chapter. \usepackage{etoolbox} \preto\table{% ...
4
votes
1answer
241 views

\ifnumcomp + \ref

I have a definition with 20 cases or so, and a proof about that definition has one case for each case of the definition. I'd like the proof cases to reorder themselves automatically when I reorder ...
5
votes
2answers
151 views

Boolean key value in xkeyval fails

It is possible to hand over a boolean key value stored in a macro to a command such as \edef\SomeKeyValue{true}% \DummyCommand[DummyBooleanKey=\SomeKeyValue]%%% where DummyBooleanKey is a boolean ...
11
votes
2answers
126 views

how to disable/enable etoolbox global command effect at different locations in a document?

I am not able to figure how to do this, and I did look at the etoolbox documentation The problem is simple to explain: I use etoolbox to append a \clearpage before any \section in a large document ...
10
votes
1answer
121 views

Extra space due to \patchcmd

It seems that \patchcmd from etoolbox adds three unwanted spaces, as shown below: \documentclass{minimal} \usepackage{etoolbox} \begin{document} \tracingall% 3 spaces in ...
8
votes
2answers
302 views

Append \centering to \begin{subfigure} (from subcaption package)

How can I append \centering to \begin{subfigure} (from subcaption package)? I tried using the etoolbox , but for some reason it won't work for the subfigure enviroment (only working for the figure ...
5
votes
1answer
206 views

Forcing the first choice of an newtcblisting environment

I have created a new environment based on "tcblisting" from package "tcolorbox" is code (MWE) is as follows: \documentclass[10pt]{article} \usepackage{tcolorbox} ...
5
votes
1answer
545 views

How do I use the etoolbox package to check if an argument to a macro was defined?

I saw this answer, which uses the etoolbox package to create a macro with an optional argument. Unfortunately, I can't get it to work. Here is a minimal working example: \documentclass[12pt]{article} ...
6
votes
2answers
111 views

How to combine \ifdefstring (etoolbox) with \multicolumn

I need to make tabulars with either norwegian or english column heading above the numbers. I have defined a command, \ReportLanguage, that can be set to either of two values, "no" for norwegian, and ...
5
votes
1answer
85 views

Error output using \ifdefempty

I'm using TeX 3.1415926 (TeX Live 2013) and when I execute \documentclass{article} \usepackage{etoolbox} % contents \newcommand{\contentdesc}[2]{\item \ifdefempty{#2}{\textbf{#1}}{\textbf{#1}: ...
27
votes
2answers
396 views

What's the difference between the various methods for producing for loops?

I've been wondering about the various methods available for looping over a comma separated list and the like. In particular, I was wondering about their various strengths and weaknesses. In other ...
4
votes
1answer
140 views

Loop Multi-Contingency using etoolbox

I want to use the etoolbox package to manage some loop contingencies over a counting index. In particular, I'd like to do something different on the first and last times through the loop. Now I can ...
7
votes
1answer
138 views

I'm confused about how expansion is happening here

I was really pleased that I could come up with a means of building the contents of a tabular environment using \foreach \x in {...} {...} structure. But I was curious about what exactly it would take ...
11
votes
2answers
195 views

How to create a macro “environmentally-dependent”

Yesterday I was reading the etoolbox documentation where there are defined some new document commands such as: \Before<Begin/End>Environment{<envir>}{<code>} % ...
20
votes
2answers
235 views

Is there an easy way to patch commands containing ^^J?

I'm currently looking at various questions related to multicol and try giving answers to some of them. Often enough the answer would involve patching \balance@columns or similar macros and in that ...
5
votes
1answer
221 views

e-Tex and TexWriter

I'm using TexWriter as a LaTeX editor on my iPad. When I try to compile a document I get the following error:"!package etoolbox Error: Not running under e-TeX." I'm also using enumitem package. Is ...
7
votes
2answers
780 views

Incompatibility between etoolbox and hyperref

I tried to compile Werner's second answer from Automatically number inequalities with the hyperref package. However, the first run will give me the error below: Runaway argument? {\@firstoffive }\fi ...
5
votes
1answer
233 views

Package etoolbox Warning: Patching '\begin' failed!

After updating my MiKTeX 2.9 package, .tex files which compiled perfectly with 0 error 0 warning now gives 0 error 1 warning: Package etoolbox Warning: Patching '\begin' failed! (pdflatex) ...
6
votes
2answers
160 views

etoolbox ifblank error with xkeyval

I am trying to create my first class, which is basically just my ordinary preamble with a set of options. These options are handled by xkeyval using the following syntax: \NeedsTeXFormat{LaTeX2e} ...
5
votes
1answer
150 views

How to implement the macros style with mixed chars and floats in a csv file?

I would like to implement macros to generate multiple tables in a document. Some inspiration comes from here: usage-of-longtable-or-equivalent-and-pgfplotstabletypeset The input csv file and ...
11
votes
2answers
205 views

How to process a list and ignore spaces?

This question is part of a new package: metrix. Typeset metric/prosodic symbols standalone and above syllables. I’m wrinting a new package and I need to process a list (using etoolbox at the ...
5
votes
2answers
242 views

Transforming string into tabular row

Trying to have a command converting a string into a (tabular) row, where each cell of the row is (a function of) each character of the string. (\tilerow is my attempt, \tiletext is just for ...
1
vote
1answer
299 views

threeparttable - appending commands to \TPTnoteSettings does not work if package called with flushleft option

In the tablenotes environment defined by the threeparttable package, I wanted to resize my notes globally throughout my document. I have found this answer to a question somebody posted in regards to ...
10
votes
1answer
274 views

Is \AfterEndPreamble really executing code after any \AtBeginDocument code?

The babel package loads the (last) language at begin document, thanks to an \AtBeginDocument command (lines 12.256 and 12.257 of its kernel): \AtBeginDocument{% ...
5
votes
3answers
476 views

Using \ifstrequal in a fontspec macro

Here is my Minimal Failing Example: \documentclass{article} \usepackage{fontspec,etoolbox} \setmainfont{TeX Gyre Schola} \begin{document} \newcommand\Stretch[1]{ \ifstrequal{#1}{narrow}{0.6}{} ...