libguile/read.h

   1 /* classes: h_files */
   2
   3 #ifndef READH
   4 #define READH
   5 /*      Copyright (C) 1995,1996 Free Software Foundation, Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this software; see the file COPYING.  If not, write to
  19  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  * As a special exception, the Free Software Foundation gives permission
  22  * for additional uses of the text contained in its release of GUILE.
  23  *
  24  * The exception is that, if you link the GUILE library with other files
  25  * to produce an executable, this does not by itself cause the
  26  * resulting executable to be covered by the GNU General Public License.
  27  * Your use of that executable is in no way restricted on account of
  28  * linking the GUILE library code into it.
  29  *
  30  * This exception does not however invalidate any other reasons why
  31  * the executable file might be covered by the GNU General Public License.
  32  *
  33  * This exception applies only to the code released by the
  34  * Free Software Foundation under the name GUILE.  If you copy
  35  * code from other Free Software Foundation releases into a copy of
  36  * GUILE, as the General Public License permits, the exception does
  37  * not apply to the code that you add in this way.  To avoid misleading
  38  * anyone as to the status of such modified files, you must delete
  39  * this exception notice from them.
  40  *
  41  * If you write modifications of your own for GUILE, it is your choice
  42  * whether to permit this exception to apply to your modifications.
  43  * If you do not wish that, delete this exception notice.
  44  */
  45 \f
  46
  47 #include "libguile/__scm.h"
  48
  49 #include "libguile/options.h"
  50 \f
  51
  52 /* SCM_LINE_INCREMENTORS are the characters which cause the line count to
  53  * be incremented for the purposes of error reporting.  This feature
  54  * is only used for scheme code loaded from files.
  55  *
  56  * SCM_WHITE_SPACES are other characters which should be treated like spaces
  57  * in programs.
  58  */
  59
  60 #define SCM_LINE_INCREMENTORS  '\n'
  61
  62 #ifdef MSDOS
  63 # define SCM_SINGLE_SPACES  ' ':case '\r':case '\f': case 26
  64 #else
  65 # define SCM_SINGLE_SPACES  ' ':case '\r':case '\f'
  66 #endif
  67
  68 #define SCM_WHITE_SPACES  SCM_SINGLE_SPACES: case '\t'
  69
  70 #ifdef READER_EXTENSIONS
  71 extern scm_option scm_read_opts[];
  72
  73 #define SCM_COPY_SOURCE_P      scm_read_opts[0].val
  74 #define SCM_RECORD_POSITIONS_P scm_read_opts[1].val
  75 #define SCM_N_READ_OPTIONS 2
  76 #endif
  77
  78 \f
  79
  80 #ifdef __STDC__
  81 extern SCM scm_read_options (SCM setting);
  82 extern SCM scm_read (SCM port, SCM casep, SCM sharp);
  83 extern char * scm_grow_tok_buf (SCM * tok_buf);
  84 extern int scm_flush_ws (SCM port, char *eoferr);
  85 extern int scm_casei_streq (char * s1, char * s2);
  86 extern SCM scm_lreadr (SCM * tok_buf, SCM port, int case_i, SCM sharp);
  87 extern scm_sizet scm_read_token (int ic, SCM * tok_buf, SCM port, int case_i, int weird);
  88 extern SCM scm_lreadparen (SCM * tok_buf, SCM port, char *name, int case_i, SCM sharp);
  89 extern void scm_init_read (void);
  90
  91 #else /* STDC */
  92 extern SCM scm_read_options ();
  93 extern SCM scm_read ();
  94 extern char * scm_grow_tok_buf ();
  95 extern int scm_flush_ws ();
  96 extern int scm_casei_streq ();
  97 extern SCM scm_lreadr ();
  98 extern scm_sizet scm_read_token ();
  99 extern SCM scm_lreadparen ();
 100 extern void scm_init_read ();
 101
 102 #endif /* STDC */
 103
 104
 105 #endif  /* READH */