IMHO the "text expression" does precisely the same as current use of scribble 
-> pigeonholing the syntax for one use: in the case of scribble it is 
"documentation" in the case of text - "text processing".

I actually find "at-exp" to be quite fitting but would keep using this form 
everywhere instead of "@-exp". Instead of deriving the name from the "@" 
symbol, explain it as deriving from "at" preposition. Why?
- You can place the expression "AT ANY PLACE inside your text or code"
- Expression is identified by the selected identifier "AT THE FRONT of the 
expression" -> default @
- With at-exp the function is "AT THE FRONT followed by brackets/braces"
Ok maybe stretching it a bit but each to their own.

Some alternatives:
- M-expression (sic!) it even has plenty of similarities with meta-expression 
and in a way it is a meta syntax for s-expression
- F-expression - fore-expression -> function before brackets
- P-expression - pre(peri)-expression -> function before brackets

Cheers

Greg

On Monday, September 26, 2016 at 3:40:13 PM UTC+2, Matthew Butterick wrote:
> T as in "text":
> 
> 
> @-form => T-form
> @-expression = > T-expression (or t-exp in shorthand)

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