{expl3} is the programming "language" written for the LaTeX3 project. It is a library of common functions for storing and manipulating data and performing higher-level logical tasks than commonly provided for in TeX and LaTeX.

learn more… | top users | synonyms

1
vote
2answers
25 views

Problem with ExplSyntax

I'm trying to define a flexible "delimiter styling" command. I tried it in a package, and \str_case:nnF returned Undefined Control Sequence, whereas using \str_case:nnn went further and caused a ...
5
votes
0answers
75 views

What are best practices when augmenting and building on the keys provided by someone else's package

The situation is one where I'm developing my own commands and environments which build on the commands and environments provided by another package: for ease of talking let's call this other package ...
5
votes
0answers
413 views

Trying to make an automatic histogram (in pgfplots?)

How can I convert the automatic table generated by the macro, to an automatic histogram? Is the best way do it using pgfplots? \documentclass{article} \RequirePackage{ifthen} ...
3
votes
0answers
63 views

Difficulty saving formatting to a sequence to be called later in my code

I had an idea about how to answer this question and started putting some things together. I wanted to put something together that was fairly powerful and could handle simplification of linear ...
2
votes
0answers
88 views

Sorting a list of tokens (not necessarily numerals) in expl3/LaTeX3

I'd like to sort a list of words according to their lexicographical order using expl3 code. My words are in a seq variable that I access in a stack-like manner (this is not relevant, though). I've ...
2
votes
0answers
45 views

Is there a `sty2dtx` for LaTeX3 syntax?

sty2dtx is a CLI tool to convert a commented style file into a Documented TeX file (dtx). It was written and works wonderfully for LaTeX2e packages, but expl3 offers a lot of happy times for package ...
2
votes
0answers
68 views

How can I manipulate data in a PGFPlots Table using l3int?

I need to provide statistical functionality to some of my TeX-trainees and I'd like to leverage the intuitiveness of l3int and the expressiveness of pgfplots and its table helper package. So, as a ...
1
vote
0answers
31 views

Why does \iow_shipout: introduce typeset whitespace (where \iow_now: does not)?

For my resume, I have an environment that lays out information in two minipages—one for position/education data, one for the environment contents. The class I wrote also produces plain text ...
0
votes
0answers
57 views

Is there / should there be a naming convention for expl3 extensions?

In other programming languages, there is a (sometimes pretty loose) standard on how to name modules / packages / etc. Does expl3 have such a convention in place or, if not, what should it be? Say you ...