201 lines
6.4 KiB
C
201 lines
6.4 KiB
C
/* lex.h -- Public #include File (module.h template V1.0)
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Copyright (C) 1995 Free Software Foundation, Inc.
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Contributed by James Craig Burley.
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This file is part of GNU Fortran.
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GNU Fortran is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Fortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Fortran; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA.
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Owning Modules:
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lex.c
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Modifications:
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22-Aug-89 JCB 1.1
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Change for new ffewhere interface.
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*/
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/* Allow multiple inclusion to work. */
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#ifndef GCC_F_LEX_H
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#define GCC_F_LEX_H
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/* Simple definitions and enumerations. */
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typedef enum
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{
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FFELEX_typeNONE,
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FFELEX_typeCOMMENT,
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FFELEX_typeEOS,
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FFELEX_typeEOF,
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FFELEX_typeERROR,
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FFELEX_typeRAW,
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FFELEX_typeQUOTE,
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FFELEX_typeDOLLAR,
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FFELEX_typeHASH,
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FFELEX_typePERCENT,
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FFELEX_typeAMPERSAND,
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FFELEX_typeAPOSTROPHE,
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FFELEX_typeOPEN_PAREN,
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FFELEX_typeCLOSE_PAREN,
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FFELEX_typeASTERISK,
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FFELEX_typePLUS,
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FFELEX_typeMINUS,
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FFELEX_typePERIOD,
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FFELEX_typeSLASH,
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FFELEX_typeNUMBER, /* Grep: [0-9][0-9]*. */
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FFELEX_typeOPEN_ANGLE,
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FFELEX_typeEQUALS,
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FFELEX_typeCLOSE_ANGLE,
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FFELEX_typeNAME, /* Grep: [A-Za-z][A-Za-z0-9_]*. */
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FFELEX_typeCOMMA,
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FFELEX_typePOWER, /* "**". */
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FFELEX_typeCONCAT, /* "//". */
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FFELEX_typeDEBUG,
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FFELEX_typeNAMES, /* Same as FFELEX_typeNAME in initial
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context. */
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FFELEX_typeHOLLERITH, /* <text> part of <nn>H<text>. */
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FFELEX_typeCHARACTER, /* <text> part of '<text>' or "<text>". */
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FFELEX_typeCOLON,
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FFELEX_typeSEMICOLON,
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FFELEX_typeUNDERSCORE,
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FFELEX_typeQUESTION,
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FFELEX_typeOPEN_ARRAY, /* "(/". */
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FFELEX_typeCLOSE_ARRAY, /* "/)". */
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FFELEX_typeCOLONCOLON, /* "::". */
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FFELEX_typeREL_LE, /* "<=". */
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FFELEX_typeREL_NE, /* "<>". */
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FFELEX_typeREL_EQ, /* "==". */
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FFELEX_typePOINTS, /* "=>". */
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FFELEX_typeREL_GE, /* ">=". */
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FFELEX_type
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} ffelexType;
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/* Typedefs. */
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typedef struct _lextoken_ *ffelexToken;
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typedef void *lex_sigh_;
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typedef lex_sigh_ (*lex_sigh__) (ffelexToken);
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typedef lex_sigh__ (*ffelexHandler) (ffelexToken);
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/* Include files needed by this one. */
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#include "top.h"
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#include "where.h"
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/* Structure definitions. */
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struct _lextoken_
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{
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long int id_; /* DEBUG ONLY. */
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ffeTokenLength size;
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ffeTokenLength length;
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unsigned short uses;
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char *text;
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ffelexType type;
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ffewhereLine where_line;
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ffewhereColumn where_col;
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ffewhereLine currentnames_line; /* For tracking NAMES tokens. */
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ffewhereColumn currentnames_col; /* For tracking NAMES tokens. */
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ffewhereTrack wheretrack; /* For tracking NAMES tokens. */
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};
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/* Global objects accessed by users of this module. */
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/* Declare functions with prototypes. */
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void ffelex_display_token (ffelexToken t);
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bool ffelex_expecting_character (void);
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ffelexHandler ffelex_file_fixed (ffewhereFile wf, FILE *f);
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ffelexHandler ffelex_file_free (ffewhereFile wf, FILE *f);
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void ffelex_hash_kludge (FILE *f);
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void ffelex_init_1 (void);
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bool ffelex_is_names_expected (void);
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char *ffelex_line (void);
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ffewhereColumnNumber ffelex_line_length (void);
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ffewhereLineNumber ffelex_line_number (void);
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void ffelex_set_expecting_hollerith (long length, char which,
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ffewhereLine line,
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ffewhereColumn column);
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void ffelex_set_handler (ffelexHandler first);
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void ffelex_set_hexnum (bool on);
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void ffelex_set_include (ffewhereFile wf, bool free_form, FILE *fi);
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void ffelex_set_names (bool on);
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void ffelex_set_names_pure (bool on);
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ffelexHandler ffelex_splice_tokens (ffelexHandler first, ffelexToken master,
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ffeTokenLength start);
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ffelexHandler ffelex_swallow_tokens (ffelexToken t, ffelexHandler handler);
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ffelexToken ffelex_token_dollar_from_names (ffelexToken t,
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ffeTokenLength start);
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void ffelex_token_kill (ffelexToken t);
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ffelexToken ffelex_token_name_from_names (ffelexToken t,
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ffeTokenLength start,
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ffeTokenLength len);
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ffelexToken ffelex_token_names_from_names (ffelexToken t,
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ffeTokenLength start,
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ffeTokenLength len);
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ffelexToken ffelex_token_new (void);
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ffelexToken ffelex_token_new_character (const char *s, ffewhereLine l,
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ffewhereColumn c);
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ffelexToken ffelex_token_new_eof (void);
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ffelexToken ffelex_token_new_name (const char *s, ffewhereLine l,
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ffewhereColumn c);
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ffelexToken ffelex_token_new_names (const char *s, ffewhereLine l,
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ffewhereColumn c);
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ffelexToken ffelex_token_new_number (const char *s, ffewhereLine l,
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ffewhereColumn c);
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ffelexToken ffelex_token_new_simple_ (ffelexType type, ffewhereLine l,
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ffewhereColumn c);
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ffelexToken ffelex_token_number_from_names (ffelexToken t,
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ffeTokenLength start);
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ffelexToken ffelex_token_uscore_from_names (ffelexToken t,
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ffeTokenLength start);
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ffelexToken ffelex_token_use (ffelexToken t);
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/* Define macros. */
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#define ffelex_init_0()
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#define ffelex_init_2()
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#define ffelex_init_3()
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#define ffelex_init_4()
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#define ffelex_is_firstnamechar(c) ISIDST (c)
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#define ffelex_terminate_0()
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#define ffelex_terminate_1()
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#define ffelex_terminate_2()
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#define ffelex_terminate_3()
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#define ffelex_terminate_4()
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#define ffelex_token_length(t) ((t)->length)
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#define ffelex_token_new_eos(l,c) \
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ffelex_token_new_simple_ (FFELEX_typeEOS, (l), (c))
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#define ffelex_token_new_period(l,c) \
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ffelex_token_new_simple_ (FFELEX_typePERIOD, (l), (c))
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#define ffelex_token_strcmp(t1,t2) strcmp ((t1)->text, (t2)->text)
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#define ffelex_token_text(t) ((t)->text)
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#define ffelex_token_type(t) ((t)->type)
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#define ffelex_token_where_column(t) ((t)->where_col)
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#define ffelex_token_where_filename(t) \
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ffewhere_line_filename ((t)->where_line)
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#define ffelex_token_where_filelinenum(t) \
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ffewhere_line_filelinenum((t)->where_line)
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#define ffelex_token_where_line(t) ((t)->where_line)
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#define ffelex_token_where_line_number(t) \
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ffewhere_line_number ((t)->where_line)
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#define ffelex_token_wheretrack(t) ((t)->wheretrack)
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/* End of #include file. */
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#endif /* ! GCC_F_LEX_H */
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