General ⇒ Application of Category Codes

[loesung]

I want to write fractions using different syntax, instead of using \frac{ab}{cd}, I would prefer to write something like \frac{ab⌂cd} where the Unicode ⌂ is the }{.

My understanding of TeX is limited, but I think I can use \catcode to do this, My understanding is that:

• \catcode `@=2 is equivalent to }
• \catcode `@=1 is equivalent to {

However just writing the following doesn't work.

Code: Select all

\catcode`\⌂=\active
\def ⌂{ \catcode `@=2 \catcode `@=1 }

Any ideas?

Thanks in advance!

[localghost]

Just for information to other users for awareness of possibly already existing solutions. The question has also been posted to {TeX} SX (with an accepted answer).

In the view of the occasion I refer to our Board Rules. Crosspostings have to be mentioned with a direct link to the question at the other place. This is the second time that you do so despite the admonition for your first crossposting.

[Stefan Kottwitz]

You spent some time for good formatting of the question, great. Simply add links to cross-posts, to avoid making people upset because they wasted time.

Yes, without Thorstens link I would have wasted my free time on this problem, which is obviously solved, but you did not give readers a chance to see this.

Next time please add a link. That's also important on other sites, to see parallel discussions and existing solutions, so also on TeX.SE.

Stefan