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/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/hyreach/mf_lex.h,v 1.4 2001/12/13 07:36:35 dtashley Exp $
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*/
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//--------------------------------------------------------------------------------
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//Copyright 2001 David T. Ashley
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//-------------------------------------------------------------------------------------------------
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//This source code and any program in which it is compiled/used is provided under the GNU GENERAL
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//PUBLIC LICENSE, Version 3, full license text below.
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//-------------------------------------------------------------------------------------------------
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// GNU GENERAL PUBLIC LICENSE
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// Version 3, 29 June 2007
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//
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// Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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|
412 |
// Additional terms, permissive or non-permissive, may be stated in the
|
413 |
//form of a separately written license, or stated as exceptions;
|
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//the above requirements apply either way.
|
415 |
//
|
416 |
// 8. Termination.
|
417 |
//
|
418 |
// You may not propagate or modify a covered work except as expressly
|
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//provided under this License. Any attempt otherwise to propagate or
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420 |
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|
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//
|
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// However, if you cease all violation of this License, then your
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|
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|
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|
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//prior to 60 days after the cessation.
|
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//
|
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// Moreover, your license from a particular copyright holder is
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//reinstated permanently if the copyright holder notifies you of the
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|
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|
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|
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//
|
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//
|
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|
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//
|
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// 10. Automatic Licensing of Downstream Recipients.
|
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//
|
457 |
// Each time you convey a covered work, the recipient automatically
|
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|
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|
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//
|
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// An "entity transaction" is a transaction transferring control of an
|
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|
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|
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|
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|
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|
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//
|
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|
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|
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//sale, or importing the Program or any portion of it.
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//
|
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// 11. Patents.
|
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//
|
482 |
// A "contributor" is a copyright holder who authorizes use under this
|
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|
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//
|
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// A contributor's "essential patent claims" are all patent claims
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|
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|
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|
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|
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|
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|
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|
559 |
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|
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//
|
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// 13. Use with the GNU Affero General Public License.
|
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|
563 |
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564 |
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|
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|
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|
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//section 13, concerning interaction through a network will apply to the
|
570 |
//combination as such.
|
571 |
//
|
572 |
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|
573 |
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|
574 |
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|
575 |
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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// 16. Limitation of Liability.
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|
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//EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
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//SUCH DAMAGES.
|
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|
621 |
// 17. Interpretation of Sections 15 and 16.
|
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//
|
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// If the disclaimer of warranty and limitation of liability provided
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//
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// END OF TERMS AND CONDITIONS
|
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//
|
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// How to Apply These Terms to Your New Programs
|
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//
|
634 |
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|
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|
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//
|
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|
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|
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|
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|
664 |
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|
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|
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|
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|
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|
673 |
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|
674 |
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|
675 |
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|
676 |
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677 |
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|
678 |
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|
680 |
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|
682 |
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|
683 |
//<http://www.gnu.org/philosophy/why-not-lgpl.html>.
|
684 |
//-------------------------------------------------------------------------------------------------
|
685 |
//--------------------------------------------------------------------------------
|
686 |
#ifndef MF_LEX_H_INCLUDED
|
687 |
#define MF_LEX_H_INCLUDED
|
688 |
|
689 |
#ifdef MODULE_MF_LEX
|
690 |
#define DECMOD_MF_LEX
|
691 |
#else
|
692 |
#define DECMOD_MF_LEX extern
|
693 |
#endif
|
694 |
|
695 |
/* The fundamental data structure which stores each token
|
696 |
** taken from the model input file. The data structure passed back
|
697 |
** from this software module is an array of pointers to such
|
698 |
** token structures.
|
699 |
*/
|
700 |
typedef struct
|
701 |
{
|
702 |
unsigned line;
|
703 |
/* The line number in the model input file on which the
|
704 |
** token began. Will be 1 or larger.
|
705 |
*/
|
706 |
unsigned col;
|
707 |
/* The column number in the model input file on which
|
708 |
** the token began. Will be 1 or larger.
|
709 |
*/
|
710 |
unsigned char *token;
|
711 |
/* The token itself. This is allocated using the
|
712 |
** malloc() family of functions and will be non-NULL even
|
713 |
** in the degenerate case of an empty-string token. The
|
714 |
** token will be terminated with the standard \0 terminator.
|
715 |
*/
|
716 |
unsigned token_len;
|
717 |
/* The length of the token, which would be the same
|
718 |
** result returned from strlen().
|
719 |
*/
|
720 |
unsigned n_allocd;
|
721 |
/* The number of character slots allocated for the token,
|
722 |
** which must also include space for the \0 terminator.
|
723 |
** This number is used only for knowing when adding to a
|
724 |
** token whether more space must be allocated.
|
725 |
*/
|
726 |
} MF_LEX_TOKEN, *MF_LEX_TOKEN_PTR;
|
727 |
|
728 |
/* Constants for classes of characters that might be encountered
|
729 |
** while parsing. These are bitflags, and assume a 32-bit integer
|
730 |
** to hold them.
|
731 |
*/
|
732 |
#define MF_LEX_CCLASS_TERMINATOR (0x00000001)
|
733 |
/* The NULL terminator, with value 0. This character cannot */
|
734 |
/* occur anywhere in a file, as storing it would conflict with */
|
735 |
/* the C-language string terminator, which we don't want to go to */
|
736 |
/* the hassle of storing. */
|
737 |
#define MF_LEX_CCLASS_ILLEGAL (0x00000002)
|
738 |
/* A character in the range of 128 ... 255, which is not allowed. */
|
739 |
#define MF_LEX_CCLASS_BACKSLASH (0x00000004)
|
740 |
/* The backslash character. */
|
741 |
#define MF_LEX_CCLASS_DOUBLE_QUOTE (0x00000008)
|
742 |
/* The double-quote character. */
|
743 |
#define MF_LEX_CCLASS_SPACE (0x00000010)
|
744 |
/* The space character. */
|
745 |
#define MF_LEX_CCLASS_TAB (0x00000020)
|
746 |
/* The tab character. */
|
747 |
#define MF_LEX_CCLASS_DIGIT (0x00000040)
|
748 |
/* A digit ('0'..'9'). */
|
749 |
#define MF_LEX_CCLASS_LC_LETTER (0x00000080)
|
750 |
/* A lower-case letter, 'a'-'z'. */
|
751 |
#define MF_LEX_CCLASS_UC_LETTER (0x00000100)
|
752 |
/* An upper-case letter, 'A'-'Z'. */
|
753 |
#define MF_LEX_CCLASS_LEGAL_NON_WHITESPACE (0x00000200)
|
754 |
/* A character which is legal but not whitespace. Whitespace is */
|
755 |
/* defined as not a space and not a tab. */
|
756 |
#define MF_LEX_CCLASS_OPEN_BRACE (0x00000400)
|
757 |
/* The open brace character. */
|
758 |
#define MF_LEX_CCLASS_CLOSE_BRACE (0x00000800)
|
759 |
/* The close_brace_character. */
|
760 |
#define MF_LEX_CCLASS_SLASH (0x00001000)
|
761 |
/* The forward slash character. */
|
762 |
#define MF_LEX_CCLASS_ASTERISK (0x00002000)
|
763 |
/* The asterisk. */
|
764 |
#define MF_LEX_CCLASS_CR (0x00004000)
|
765 |
/* The carriage return character (13). Ends of lines under */
|
766 |
/* Windows systems are canonically 13, 10. */
|
767 |
#define MF_LEX_CCLASS_LF (0x00008000)
|
768 |
/* The line feed character (10). This is normally the Unix */
|
769 |
/* end-of-line character. */
|
770 |
|
771 |
/* Classifies a character and returns an integer with the appropriate
|
772 |
** classification bitflags set. The bitflags above are not mutually
|
773 |
** exclusive and in some cases can be tested for in compound ways to
|
774 |
** identify a character.
|
775 |
*/
|
776 |
DECMOD_MF_LEX unsigned MF_LEX_cclass(unsigned char arg);
|
777 |
|
778 |
/* These are the model input file parse return codes. They
|
779 |
** indicate how successful the parse was or was not. In all cases,
|
780 |
** the token count returned is populated, and the token array will
|
781 |
** be allocated and populated UNLESS the token count is zero.
|
782 |
** Note that the NO ERROR condition is zero, warnings are positive,
|
783 |
** and errors are negative.
|
784 |
*/
|
785 |
#define MF_LEX_PARSE_RESULT_OK (0)
|
786 |
/* The parse was fully successful. The token list may still
|
787 |
** contain zero tokens if the file contained nothing to
|
788 |
** parse (for example, an empty file or a file containing
|
789 |
** only comments).
|
790 |
*/
|
791 |
#define MF_LEX_PARSE_RESULT_WARNINGS_ONLY (1)
|
792 |
/* Parse warnings were produced but no errors. The warnings
|
793 |
** will be written as per the debug level, etc. There is
|
794 |
** no reason to stop the operation of the program due to the
|
795 |
** detected minor errors.
|
796 |
*/
|
797 |
#define MF_LEX_PARSE_RESULT_ERROR_FOPEN (-1)
|
798 |
/* The model input file could not be opened. The most likely
|
799 |
** cause is that the filename specified does not exist. This
|
800 |
** error should be treated fatally, because clearly lack of
|
801 |
** a model input file means that nothing useful can be done.
|
802 |
*/
|
803 |
#define MF_LEX_PARSE_RESULT_ERROR_FREAD_FCLOSE (-2)
|
804 |
/* There was an error reading the model file (after it was
|
805 |
** successfully opened), or an error closing the file. The
|
806 |
** most likely cause is that removeable media was removed after
|
807 |
** the file is opened but before everything was read and the file
|
808 |
** closed.
|
809 |
*/
|
810 |
DECMOD_MF_LEX void MF_LEX_parse(const char *fname,
|
811 |
unsigned *ntokens,
|
812 |
MF_LEX_TOKEN_PTR **tokens,
|
813 |
int *result_code);
|
814 |
|
815 |
/* Destroys an array of tokens--returns their bits to the big
|
816 |
** bit-bucket in the sky.
|
817 |
*/
|
818 |
DECMOD_MF_LEX void MF_LEX_token_list_destroy(
|
819 |
unsigned *ntokens,
|
820 |
MF_LEX_TOKEN_PTR **tokens);
|
821 |
|
822 |
DECMOD_MF_LEX const char *MF_LEX_cvcinfo(void);
|
823 |
DECMOD_MF_LEX const char *MF_LEX_hvcinfo(void);
|
824 |
#define MF_LEX_H_VERSION ("$Header: /cvsroot/esrg/sfesrg/esrgpcpj/hyreach/mf_lex.h,v 1.4 2001/12/13 07:36:35 dtashley Exp $")
|
825 |
|
826 |
#endif
|
827 |
|
828 |
/***************************************************************************
|
829 |
** $Log: mf_lex.h,v $
|
830 |
** Revision 1.4 2001/12/13 07:36:35 dtashley
|
831 |
** Evening safety checkin.
|
832 |
**
|
833 |
** Revision 1.3 2001/12/07 05:06:33 dtashley
|
834 |
** Evening safety checkin.
|
835 |
**
|
836 |
** Revision 1.2 2001/12/01 21:29:18 dtashley
|
837 |
** Safety checkin after edits.
|
838 |
**
|
839 |
** Revision 1.1 2001/12/01 21:23:44 dtashley
|
840 |
** Initial checkin.
|
841 |
****************************************************************************
|
842 |
** End of MF_LEX.H. */ |