libguile/strings.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_STRINGS_H
   4 #define SCM_STRINGS_H
   5
   6 /* Copyright (C) 1995,1996,1997,1998,2000,2001 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 \f
  52
  53 #define SCM_STRINGP(x) (!SCM_IMP (x) && (SCM_TYP7 (x) == scm_tc7_string))
  54 #define SCM_STRING_UCHARS(x) ((unsigned char *) (SCM_CELL_WORD_1 (x)))
  55 #define SCM_STRING_CHARS(x) ((char *) (SCM_CELL_WORD_1 (x)))
  56 #define SCM_SET_STRING_CHARS(s, c) (SCM_SET_CELL_WORD_1 ((s), (c)))
  57 #define SCM_STRING_MAX_LENGTH ((1UL << 24) - 1UL)
  58 #define SCM_STRING_LENGTH(x) ((size_t) (SCM_CELL_WORD_0 (x) >> 8))
  59 #define SCM_SET_STRING_LENGTH(s, l) (SCM_SET_CELL_WORD_0 ((s), ((l) << 8) + scm_tc7_string))
  60
  61 \f
  62
  63 extern SCM scm_string_p (SCM x);
  64 extern SCM scm_string (SCM chrs);
  65 extern SCM scm_makfromstrs (int argc, char **argv);
  66 extern SCM scm_take_str (char *s, size_t len);
  67 extern SCM scm_take0str (char *s);
  68 extern SCM scm_mem2string (const char *src, size_t len);
  69 extern SCM scm_makfrom0str (const char *src);
  70 extern SCM scm_makfrom0str_opt (const char *src);
  71 extern SCM scm_allocate_string (size_t len);
  72 extern SCM scm_make_string (SCM k, SCM chr);
  73 extern SCM scm_string_length (SCM str);
  74 extern SCM scm_string_ref (SCM str, SCM k);
  75 extern SCM scm_string_set_x (SCM str, SCM k, SCM chr);
  76 extern SCM scm_substring (SCM str, SCM start, SCM end);
  77 extern SCM scm_string_append (SCM args);
  78 extern void scm_init_strings (void);
  79
  80 \f
  81
  82 #if (SCM_ENABLE_DEPRECATED == 1)
  83
  84 #define SCM_STRING_COERCE_0TERMINATION_X(x) (x)
  85
  86 #endif
  87
  88 #endif  /* SCM_STRINGS_H */
  89
  90 /*
  91   Local Variables:
  92   c-file-style: "gnu"
  93   End:
  94 */