New posts in Expansion

How to capitalize letter (using \uppercase) that has been assigned to \let (or to \def)?

Conversion of space characters into space tokens

Questions about `\cs_new:...` and friends and their TeX relatives regarding global, local, long, nopar, protected, expandable and naming

Is there a way to retrieve the “source code” and the argument pattern from a macro for reuse (i.e. what \show shows)?

Issue with Expansions of Nested Macros

pgfkeys: .store in constructed macro

fully expand toks and save for later (appendix with exact copies of tables from the main text)

Indirectly defined macros: Undefined macro with "@" does not trigger compile error

Question about exercise 11.5 in TeXbook

How to epxand macro with optional argument equal to (x,y) so that it becomes part of \path(x,y)--(a,b); inside another macro (expansion problem)?