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-- PSL - Utils
-- Copyright (C) 2002-2016 Tristan Gingold
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <gnu.org/licenses>.
package PSL.NFAs.Utils is
-- Sort outgoing edges by expression.
procedure Sort_Src_Edges (S : NFA_State);
procedure Sort_Src_Edges (N : NFA);
procedure Sort_Dest_Edges (S : NFA_State);
procedure Sort_Dest_Edges (N : NFA);
-- Move incoming edges of S1 to S, remove S1 and its outgoing edges.
procedure Merge_State_Dest (N : NFA; S : NFA_State; S1 : NFA_State);
procedure Merge_State_Src (N : NFA; S : NFA_State; S1 : NFA_State);
-- Return True if N or a child of N is EOS.
-- N must be a boolean expression.
function Has_EOS (N : Node) return Boolean;
-- Ensure there is an edge from init state to itself, for the implicit
-- [*] of cover directive.
procedure Set_Init_Loop (N : NFA);
-- Raise Program_Error if N is not internally coherent.
procedure Check_NFA (N : NFA);
end PSL.NFAs.Utils;
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