%{
  open Ast_types
%}
%token COMMA
%token <string> IDENTIFIER
%token UUIDV4
%token NEWLINE
%token NAME
%token COLON
%token DOT
%token EOF
%start <ast_table option > prog 
%% 

prog: 
  | e = expr; EOF { Some e }
  ;

expr:
  | tbl = IDENTIFIER; COLON; r = row; NEWLINE; e = expr { Table (tbl,r, e) }
  | tbl = IDENTIFIER; COLON; r = row { Table (tbl,r, End) }
  ;

row: 
  | row_title = IDENTIFIER; parent = IDENTIFIER; DOT; parent_id = IDENTIFIER; COMMA; r = row { Foreign (parent,parent_id,row_title, r) }
  | row_title = IDENTIFIER; parent = IDENTIFIER; DOT; parent_id = IDENTIFIER; { Foreign (parent,parent_id,row_title, End) }
  | row_title = IDENTIFIER; UUIDV4; COMMA; r = row { Uuidv4 (row_title, r) }
  | row_title = IDENTIFIER; UUIDV4 { Uuidv4 (row_title, End) }
  | row_title = IDENTIFIER; NAME; COMMA; r = row { Name (row_title, r) }
  | row_title = IDENTIFIER; NAME { Name (row_title, End) }
  ;