Merge branch 'feature/aorai/using-menhir' into 'master'

[Aorai] using menhir

See merge request frama-c/frama-c!4048

src/plugins/aorai/dune

@@ -47,6 +47,10 @@
 )
 
 (ocamllex yalexer)
-(ocamlyacc yaparser)
+(menhir
+  (modules yaparser)
+  ; "--fixed-exception" fixes compatibility with ocamlyacc Parsing.Parse_error
+  (flags --fixed-exception --explain --dump --comment)
+)
 
 (plugin (optional) (name aorai) (libraries frama-c-aorai.core) (site (frama-c plugins)))

src/plugins/aorai/dune-project

@@ -26,3 +26,4 @@
 
 (name frama-c-aorai)
 (using dune_site 0.1)
+(using menhir 2.1)

src/plugins/aorai/yaparser.mly

@@ -175,11 +175,11 @@ type pre_cond = Behavior of string | Pre of Automaton_ast.condition
 main : options metavars states EOF { build_automaton $1 $2 $3 }
 
 options
-  : options option { $1 @ [$2] }
-  | option         { [$1] }
+  : options an_option { $1 @ [$2] }
+  | an_option         { [$1] }
   ;
 
-option
+an_option
   : PERCENT IDENTIFIER opt_identifiers SEMI_COLON { 
     match $2 with
     | "init" -> Init $3