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+/* lex.h -- Public #include File (module.h template V1.0)
+ Copyright (C) 1995 Free Software Foundation, Inc.
+ Contributed by James Craig Burley (burley@gnu.ai.mit.edu).
+
+This file is part of GNU Fortran.
+
+GNU Fortran 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, or (at your option)
+any later version.
+
+GNU Fortran 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 GNU Fortran; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+
+ Owning Modules:
+ lex.c
+
+ Modifications:
+ 22-Aug-89 JCB 1.1
+ Change for new ffewhere interface.
+*/
+
+/* Allow multiple inclusion to work. */
+
+#ifndef _H_f_lex
+#define _H_f_lex
+
+/* Simple definitions and enumerations. */
+
+typedef enum
+ {
+ FFELEX_typeNONE,
+ FFELEX_typeCOMMENT,
+ FFELEX_typeEOS,
+ FFELEX_typeEOF,
+ FFELEX_typeERROR,
+ FFELEX_typeRAW,
+ FFELEX_typeQUOTE,
+ FFELEX_typeDOLLAR,
+ FFELEX_typeHASH,
+ FFELEX_typePERCENT,
+ FFELEX_typeAMPERSAND,
+ FFELEX_typeAPOSTROPHE,
+ FFELEX_typeOPEN_PAREN,
+ FFELEX_typeCLOSE_PAREN,
+ FFELEX_typeASTERISK,
+ FFELEX_typePLUS,
+ FFELEX_typeMINUS,
+ FFELEX_typePERIOD,
+ FFELEX_typeSLASH,
+ FFELEX_typeNUMBER, /* Grep: [0-9][0-9]*. */
+ FFELEX_typeOPEN_ANGLE,
+ FFELEX_typeEQUALS,
+ FFELEX_typeCLOSE_ANGLE,
+ FFELEX_typeNAME, /* Grep: [A-Za-z][A-Za-z0-9_]*. */
+ FFELEX_typeCOMMA,
+ FFELEX_typePOWER, /* "**". */
+ FFELEX_typeCONCAT, /* "//". */
+ FFELEX_typeDEBUG,
+ FFELEX_typeNAMES, /* Same as FFELEX_typeNAME in initial
+ context. */
+ FFELEX_typeHOLLERITH, /* <text> part of <nn>H<text>. */
+ FFELEX_typeCHARACTER, /* <text> part of '<text>' or "<text>". */
+ FFELEX_typeCOLON,
+ FFELEX_typeSEMICOLON,
+ FFELEX_typeUNDERSCORE,
+ FFELEX_typeQUESTION,
+ FFELEX_typeOPEN_ARRAY, /* "(/". */
+ FFELEX_typeCLOSE_ARRAY, /* "/)". */
+ FFELEX_typeCOLONCOLON, /* "::". */
+ FFELEX_typeREL_LE, /* "<=". */
+ FFELEX_typeREL_NE, /* "<>". */
+ FFELEX_typeREL_EQ, /* "==". */
+ FFELEX_typePOINTS, /* "=>". */
+ FFELEX_typeREL_GE, /* ">=". */
+ FFELEX_type
+ } ffelexType;
+
+/* Typedefs. */
+
+typedef struct _lextoken_ *ffelexToken;
+typedef void *lex_sigh_;
+typedef lex_sigh_ (*lex_sigh__) (ffelexToken);
+typedef lex_sigh__ (*ffelexHandler) (ffelexToken);
+
+/* Include files needed by this one. */
+
+#include <ctype.h>
+#include "top.h"
+#include "where.h"
+
+/* Structure definitions. */
+
+struct _lextoken_
+ {
+ long int id_; /* DEBUG ONLY. */
+ ffeTokenLength size;
+ ffeTokenLength length;
+ unsigned short uses;
+ char *text;
+ ffelexType type;
+ ffewhereLine where_line;
+ ffewhereColumn where_col;
+ ffewhereLine currentnames_line; /* For tracking NAMES tokens. */
+ ffewhereColumn currentnames_col; /* For tracking NAMES tokens. */
+ ffewhereTrack wheretrack; /* For tracking NAMES tokens. */
+ };
+
+/* Global objects accessed by users of this module. */
+
+
+/* Declare functions with prototypes. */
+
+void ffelex_display_token (ffelexToken t);
+bool ffelex_expecting_character (void);
+ffelexHandler ffelex_file_fixed (ffewhereFile wf, FILE *f);
+ffelexHandler ffelex_file_free (ffewhereFile wf, FILE *f);
+void ffelex_hash_kludge (FILE *f);
+void ffelex_init_1 (void);
+bool ffelex_is_names_expected (void);
+char *ffelex_line (void);
+ffewhereColumnNumber ffelex_line_length (void);
+ffewhereLineNumber ffelex_line_number (void);
+void ffelex_set_expecting_hollerith (long length, char which,
+ ffewhereLine line,
+ ffewhereColumn column);
+void ffelex_set_handler (ffelexHandler first);
+void ffelex_set_hexnum (bool on);
+void ffelex_set_include (ffewhereFile wf, bool free_form, FILE *fi);
+void ffelex_set_names (bool on);
+void ffelex_set_names_pure (bool on);
+ffelexHandler ffelex_splice_tokens (ffelexHandler first, ffelexToken master,
+ ffeTokenLength start);
+ffelexHandler ffelex_swallow_tokens (ffelexToken t, ffelexHandler handler);
+ffelexToken ffelex_token_dollar_from_names (ffelexToken t,
+ ffeTokenLength start);
+void ffelex_token_kill (ffelexToken t);
+ffelexToken ffelex_token_name_from_names (ffelexToken t,
+ ffeTokenLength start,
+ ffeTokenLength len);
+ffelexToken ffelex_token_names_from_names (ffelexToken t,
+ ffeTokenLength start,
+ ffeTokenLength len);
+ffelexToken ffelex_token_new (void);
+ffelexToken ffelex_token_new_character (char *s, ffewhereLine l,
+ ffewhereColumn c);
+ffelexToken ffelex_token_new_eof (void);
+ffelexToken ffelex_token_new_name (char *s, ffewhereLine l,
+ ffewhereColumn c);
+ffelexToken ffelex_token_new_names (char *s, ffewhereLine l,
+ ffewhereColumn c);
+ffelexToken ffelex_token_new_number (char *s, ffewhereLine l,
+ ffewhereColumn c);
+ffelexToken ffelex_token_new_simple_ (ffelexType type, ffewhereLine l,
+ ffewhereColumn c);
+ffelexToken ffelex_token_number_from_names (ffelexToken t,
+ ffeTokenLength start);
+ffelexToken ffelex_token_uscore_from_names (ffelexToken t,
+ ffeTokenLength start);
+ffelexToken ffelex_token_use (ffelexToken t);
+
+/* Define macros. */
+
+#define ffelex_init_0()
+#define ffelex_init_2()
+#define ffelex_init_3()
+#define ffelex_init_4()
+#define ffelex_is_firstnamechar(c) \
+ (isalpha ((c)) || ((c) == '_'))
+#define ffelex_terminate_0()
+#define ffelex_terminate_1()
+#define ffelex_terminate_2()
+#define ffelex_terminate_3()
+#define ffelex_terminate_4()
+#define ffelex_token_length(t) ((t)->length)
+#define ffelex_token_new_eos(l,c) \
+ ffelex_token_new_simple_ (FFELEX_typeEOS, (l), (c))
+#define ffelex_token_new_period(l,c) \
+ ffelex_token_new_simple_ (FFELEX_typePERIOD, (l), (c))
+#define ffelex_token_strcmp(t1,t2) strcmp ((t1)->text, (t2)->text)
+#define ffelex_token_text(t) ((t)->text)
+#define ffelex_token_type(t) ((t)->type)
+#define ffelex_token_where_column(t) ((t)->where_col)
+#define ffelex_token_where_filename(t) \
+ ffewhere_line_filename ((t)->where_line)
+#define ffelex_token_where_filelinenum(t) \
+ ffewhere_line_filelinenum((t)->where_line)
+#define ffelex_token_where_line(t) ((t)->where_line)
+#define ffelex_token_where_line_number(t) \
+ ffewhere_line_number ((t)->where_line)
+#define ffelex_token_wheretrack(t) ((t)->wheretrack)
+
+/* End of #include file. */
+
+#endif
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