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1993-05-31
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5KB
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127 lines
---------------------------------
-- aflex.a
---------------------------------
-- TITLE aflex - main program
--
-- AUTHOR: John Self (UCI)
-- DESCRIPTION main subprogram of aflex, calls the major routines in order
-- $Header: /co/ua/self/arcadia/aflex/ada/src/RCS/aflex.a,v 1.11 90/10/15 20:00:40 self Exp Locker: self $
--***************************************************************************
-- aflex
-- version 1.3a
--***************************************************************************
--
-- Arcadia Project
-- Department of Information and Computer Science
-- University of California
-- Irvine, California 92717
--
-- Send requests for aflex information to alex-info@ics.uci.edu
--
-- Send bug reports for aflex to alex-bugs@ics.uci.edu
--
-- Copyright (c) 1990 Regents of the University of California.
-- All rights reserved.
--
-- This software was developed by John Self of the Arcadia project
-- at the University of California, Irvine.
--
-- Redistribution and use in source and binary forms are permitted
-- provided that the above copyright notice and this paragraph are
-- duplicated in all such forms and that any documentation,
-- advertising materials, and other materials related to such
-- distribution and use acknowledge that the software was developed
-- by the University of California, Irvine. The name of the
-- University may not be used to endorse or promote products derived
-- from this software without specific prior written permission.
-- THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
-- IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-- WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
--
-- This program is based on the flex program written by Vern Paxson.
--
-- The following is the copyright notice from flex, from which aflex is
-- derived.
-- Copyright (c) 1989 The Regents of the University of California.
-- All rights reserved.
--
-- This code is derived from software contributed to Berkeley by
-- Vern Paxson.
--
-- The United States Government has rights in this work pursuant to
-- contract no. DE-AC03-76SF00098 between the United States Department of
-- Energy and the University of California.
--
-- Redistribution and use in source and binary forms are permitted
-- provided that the above copyright notice and this paragraph are
-- duplicated in all such forms and that any documentation,
-- advertising materials, and other materials related to such
-- distribution and use acknowledge that the software was developed
-- by the University of California, Berkeley. The name of the
-- University may not be used to endorse or promote products derived
-- from this software without specific prior written permission.
-- THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
-- IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
--
--***************************************************************************
-- History
-- 14-Jun-1991 Rolf EBERT
-- changed to a parameterless procedure; in the error case the exit
-- status is set by the compiler dependent procedure (Alsys)
-- 'Set_Exit_Status'.
with MAIN_BODY, DFA, GEN, MISC_DEFS, TEXT_IO, MISC;
with TSTRING, TEMPLATE_MANAGER, EXTERNAL_FILE_MANAGER; use MISC_DEFS, TEXT_IO,
TSTRING, EXTERNAL_FILE_MANAGER;
with System_Environment;
use System_Environment;
--function AFLEX return INTEGER is
procedure Aflex is
copyright : constant string :=
"@(#) Copyright (c) 1990 Regents of the University of California.";
copyright2 : constant string :=
"All rights reserved.";
begin
MAIN_BODY.AFLEXINIT;
MAIN_BODY.READIN;
if (SYNTAXERROR) then
MAIN_BODY.AFLEXEND(1);
end if;
if (PERFORMANCE_REPORT) then
if (INTERACTIVE) then
TEXT_IO.PUT_LINE(STANDARD_ERROR,
"-I (interactive) entails a minor performance penalty");
end if;
end if;
if (VARIABLE_TRAILING_CONTEXT_RULES) then
MISC.AFLEXERROR("can't handle variable trailing context rules");
end if;
-- convert the ndfa to a dfa
DFA.NTOD;
-- generate the Ada state transition tables from the DFA
GEN.MAKE_TABLES;
TEMPLATE_MANAGER.GENERATE_IO_FILE;
TEMPLATE_MANAGER.GENERATE_DFA_FILE;
MAIN_BODY.AFLEXEND(0);
-- return 0;
exception
when MAIN_BODY.AFLEX_TERMINATE =>
-- return MAIN_BODY.TERMINATION_STATUS;
Set_Exit_Status(Exit_Status(Main_Body.Termination_Status));
end AFLEX;