VarsFromJobname

Sources for my varsfromjobname LaTeX package, available also from CTAN:

https://www.ctan.org/tex-archive/macros/latex/contrib/varsfromjobname

Credits

varsfromjobname.sty is based on code by supplied by Friedrich Vosberg, Enrico Gregorio and Markus Kohm, help from Rolf Niepraschk, Sven Naumann, Ulrich Schwarz and Andreas Mathias was greatly appreciated.

What does this package do?

Using varsfromjobname.sty one can easily extract information from the filename, if it follows a certain form.

The standard LaTeX command \jobname returns the name of the LaTeX (master) file. If the filename consists of tokens separated by hyphen we can easily extract certain tokens that can be used inside the document.

The package expects the filename to be of the form one-two-three-four-five-six-seven-eight-nine.tex and offers the following commands:

• \getfromjobname{param}, with param in the range of 1 to n (a highlevel

interface to the following commands)

• \getonefromjobname
• \gettwofromjobname
• \getthreefromjobname
• \getfourfromjobname
• \getfivefromjobname
• \getsixfromjobname
• \getsevenfromjobname
• \geteightfromjobname
• \getninefromjobname

Why can it be useful?

You can use this package for example to define the date of the document in the filename, personally I use it e.g. for scrlttr2 letters.

References

• https://tex.stackexchange.com/questions/212169/qr-code-from-jobname/212171#212171

Remark: egreg gave an improved version of the code written with expl3 which also overcomes the limitation of nine parameters.

• https://tex.stackexchange.com/questions/116755/timestamp-in-document-pdf-name/116805#116805

• https://tex.stackexchange.com/questions/645185/splitting-the-jobname-by-hyphens-in-expl3-syntax "Splitting the jobname by hyphens in expl3 syntax"

License

Licensed under LaTeX Project Public License (LPPL), as of today this is LPPL 1.3c. In case newer version of LPPL is published, those shall apply.

Change History

• Version 0.5, as of January 11th 2009: Initial version published

• Version 1.0, published May 2017:
  • Added various commands which extract necessary information also from included documents
  • Modified code as suggested by egreg

• Version 1.1, published August 2025:
  • Switched to expl3 syntax, allowing more than nine tokens

2025-08-03, Uwe Ziegenhagen