Special Characters in Vanilla Diffusers

Hello,

I was trying to find information online about which special characters and constructions are available to be used in prompts in vanilla stable diffusion from diffusers, say of version 1.5? Or do they available at all.

By special characters I mean: brackets, exclamation mark, pipe sign, parentheses, colon with float afterwards

@pcuenq could you please give any insights about that?