c.##i.#i. not allowed

[Danferno]

Example

/*1*/ reghdfe price, absorb(c.(mpg weight)#foreign)
/*2*/ reghdfe price, absorb(c.(mpg weight)##foreign)
/*3x*/ reghdfe price, absorb(c.(mpg weight)##foreign#rep78)
/*4*/ reghdfe price, absorb(c.(mpg weight)#foreign#rep78 foreign#rep78)

Syntax 3 is not allowed, even though it requests the same as syntax 4. I mention it because you recommend using the double hashtag when desired as it is a lot faster, but in this context don't allow it.

[sergiocorreia]

Does it work if you write the c. part at the end? The absorb() code is not super general, partly because I can't just parse the variables through "syntax"

[Danferno]

Ah, yes that works!