/*
Copyright (c) 2014 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.

Author: Leonardo de Moura
*/
#pragma once
#include "util/buffer.h"
#include "kernel/expr.h"
#include "frontends/lean/cmd_table.h"
namespace lean {
class parser;
/**
    \brief Parse (optional) universe parameters <tt>'.{' l_1 ... l_k '}'</tt>
    Store the result in \c ps.
    Return true when levels were provided.
*/
bool parse_univ_params(parser & p, buffer<name> & ps);
expr parse_match(parser & p, unsigned, expr const *, pos_info const & pos);
expr parse_local_equations(parser & p, expr const & fn);

/** \brief Return true iff \c n is the auxiliary name used to elaborate match-expressions. */
bool is_match_binder_name(name const & n);

/**   \brief Add universe levels from \c found_ls to \c ls_buffer (only the levels that do not already occur in \c ls_buffer are added).
   Then sort \c ls_buffer (using the order in which the universe levels were declared).
*/
void update_univ_parameters(buffer<name> & ls_buffer, name_set const & found_ls, parser const & p);

/** \brief Parse a local abbreviation command */
environment local_abbreviation_cmd(parser & p);

/** \brief Parse a local attribute command */
environment local_attribute_cmd(parser & p);
void register_decl_cmds(cmd_table & r);

void initialize_decl_cmds();
void finalize_decl_cmds();
}