libguile/read.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_READ_H
   4 #define SCM_READ_H
   5
   6 /* Copyright (C) 1995,1996,2000 Free Software Foundation, Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this software; see the file COPYING.  If not, write to
  20  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  21  * Boston, MA 02111-1307 USA
  22  *
  23  * As a special exception, the Free Software Foundation gives permission
  24  * for additional uses of the text contained in its release of GUILE.
  25  *
  26  * The exception is that, if you link the GUILE library with other files
  27  * to produce an executable, this does not by itself cause the
  28  * resulting executable to be covered by the GNU General Public License.
  29  * Your use of that executable is in no way restricted on account of
  30  * linking the GUILE library code into it.
  31  *
  32  * This exception does not however invalidate any other reasons why
  33  * the executable file might be covered by the GNU General Public License.
  34  *
  35  * This exception applies only to the code released by the
  36  * Free Software Foundation under the name GUILE.  If you copy
  37  * code from other Free Software Foundation releases into a copy of
  38  * GUILE, as the General Public License permits, the exception does
  39  * not apply to the code that you add in this way.  To avoid misleading
  40  * anyone as to the status of such modified files, you must delete
  41  * this exception notice from them.
  42  *
  43  * If you write modifications of your own for GUILE, it is your choice
  44  * whether to permit this exception to apply to your modifications.
  45  * If you do not wish that, delete this exception notice.  */
  46
  47 \f
  48
  49 #include "libguile/__scm.h"
  50
  51 #include "libguile/options.h"
  52 \f
  53
  54 /* SCM_LINE_INCREMENTORS are the characters which cause the line count to
  55  * be incremented for the purposes of error reporting.  This feature
  56  * is only used for scheme code loaded from files.
  57  *
  58  * SCM_WHITE_SPACES are other characters which should be treated like spaces
  59  * in programs.
  60  */
  61
  62 #define SCM_LINE_INCREMENTORS  '\n'
  63
  64 #ifdef MSDOS
  65 # define SCM_SINGLE_SPACES  ' ':case '\r':case '\f': case 26
  66 #else
  67 # define SCM_SINGLE_SPACES  ' ':case '\r':case '\f'
  68 #endif
  69
  70 #define SCM_WHITE_SPACES  SCM_SINGLE_SPACES: case '\t'
  71
  72 SCM_API scm_t_option scm_read_opts[];
  73
  74 #define SCM_COPY_SOURCE_P      scm_read_opts[0].val
  75 #define SCM_RECORD_POSITIONS_P scm_read_opts[1].val
  76 #define SCM_CASE_INSENSITIVE_P scm_read_opts[2].val
  77 #define SCM_KEYWORD_STYLE      scm_read_opts[3].val
  78 #define SCM_N_READ_OPTIONS 4
  79
  80 \f
  81
  82 SCM_API SCM scm_read_options (SCM setting);
  83 SCM_API SCM scm_read (SCM port);
  84 SCM_API char * scm_grow_tok_buf (SCM * tok_buf);
  85 SCM_API int scm_flush_ws (SCM port, const char *eoferr);
  86 SCM_API int scm_casei_streq (char * s1, char * s2);
  87 SCM_API SCM scm_lreadr (SCM * tok_buf, SCM port, SCM *copy);
  88 SCM_API size_t scm_read_token (int ic, SCM * tok_buf, SCM port, int weird);
  89 SCM_API SCM scm_lreadparen (SCM * tok_buf, SCM port, char *name, SCM *copy);
  90 SCM_API SCM scm_lreadrecparen (SCM * tok_buf, SCM port, char *name, SCM *copy);
  91 SCM_API SCM scm_read_hash_extend (SCM chr, SCM proc);
  92 SCM_API void scm_init_read (void);
  93
  94 #endif  /* SCM_READ_H */
  95
  96 /*
  97   Local Variables:
  98   c-file-style: "gnu"
  99   End:
 100 */