Theory Quote_Antiquote

theory Quote_Antiquote
imports Main

header {* \section{Concrete Syntax} *}

theory Quote_Antiquote imports Main begin

syntax
"_quote" :: "'b => ('a => 'b)" ("(«_»)" [0] 1000)
"_antiquote" :: "('a => 'b) => 'b" ("´_" [1000] 1000)
"_Assert" :: "'a => 'a set" ("(\<lbrace>_\<rbrace>)" [0] 1000)

translations
"\<lbrace>b\<rbrace>" \<rightharpoonup> "CONST Collect «b»"

parse_translation {*
let
fun quote_tr [t] = Syntax_Trans.quote_tr @{syntax_const "_antiquote"} t
| quote_tr ts = raise TERM ("quote_tr", ts);
in [(@{syntax_const "_quote"}, K quote_tr)] end
*}


end