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6868a8e68f
different definitions for SCM_STRING_MAX_LENGTH, SCM_STRING_LENGTH and SCM_SET_STRING_LENGTH, and add new convenience macro SCM_SET_SUBSTRING_LENGTH. * strings.c (scm_makstr, scm_take_str, scm_allocate_string, scm_make_shared_substring): Allocate a double cell for a string, if GUILE_EXPERIMENTAL_BIG_STRINGS is defined.
124 lines
4.8 KiB
C
124 lines
4.8 KiB
C
/* classes: h_files */
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#ifndef SCM_STRINGS_H
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#define SCM_STRINGS_H
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/* Copyright (C) 1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc.
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*
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* This program 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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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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#include "libguile/__scm.h"
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#define SCM_STRINGP(x) (!SCM_IMP (x) && (SCM_TYP7S (x) == scm_tc7_string))
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#if (SCM_DEBUG_DEPRECATED == 1)
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#define SCM_STRING_UCHARS(x) ((unsigned char *) (SCM_CELL_WORD_1 (x)))
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#define SCM_STRING_CHARS(x) ((char *) (SCM_CELL_WORD_1 (x)))
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#endif
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#define SCM_SET_STRING_CHARS(s, c) (SCM_SET_CELL_WORD_1 ((s), (c)))
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#ifndef GUILE_EXPERIMENTAL_BIG_STRINGS
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#define SCM_STRING_MAX_LENGTH ((1UL << 24) - 1UL)
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#define SCM_STRING_LENGTH(x) ((size_t) (SCM_CELL_WORD_0 (x) >> 8))
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#define SCM_SET_STRING_LENGTH(s, l) (SCM_SET_CELL_WORD_0 ((s), (((long) (l)) << 8) + scm_tc7_string))
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#else
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#define SCM_STRING_MAX_LENGTH ((1UL << (SCM_C_BVEC_LIMB_BITS)) - 1UL)
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#define SCM_STRING_LENGTH(x) ((size_t) (SCM_CELL_WORD_2 (x)))
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#define SCM_SET_STRING_LENGTH(s, l) (SCM_SET_CELL_WORD_0 ((s), scm_tc7_string), SCM_SET_CELL_WORD_2 ((s), (((long) (l)))))
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#define SCM_SET_SUBSTRING_LENGTH(s, l) (SCM_SET_CELL_WORD_0 ((s), scm_tc7_substring), SCM_SET_CELL_WORD_2 ((s), (((long) (l)))))
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#endif
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#define SCM_STRING_COERCE_0TERMINATION_X(x) \
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{ if (!SCM_IMP (x) && (SCM_TYP7 (x) == scm_tc7_substring)) \
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x = scm_mem2string (SCM_STRING_CHARS (x), SCM_STRING_LENGTH (x)); }
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extern SCM scm_string_p (SCM x);
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extern SCM scm_read_only_string_p (SCM x);
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extern SCM scm_string (SCM chrs);
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extern SCM scm_makfromstrs (int argc, char **argv);
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extern SCM scm_take_str (char *s, size_t len);
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extern SCM scm_take0str (char *s);
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extern SCM scm_mem2string (const char *src, size_t len);
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extern SCM scm_makfrom0str (const char *src);
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extern SCM scm_makfrom0str_opt (const char *src);
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extern SCM scm_allocate_string (size_t len);
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extern SCM scm_make_string (SCM k, SCM chr);
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extern SCM scm_string_length (SCM str);
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extern SCM scm_string_ref (SCM str, SCM k);
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extern SCM scm_string_set_x (SCM str, SCM k, SCM chr);
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extern SCM scm_substring (SCM str, SCM start, SCM end);
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extern SCM scm_string_append (SCM args);
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extern void scm_init_strings (void);
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#if (SCM_DEBUG_DEPRECATED == 0)
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#define SCM_SLOPPY_STRINGP(x) (SCM_STRINGP(x))
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#define SCM_RWSTRINGP(x) (!SCM_IMP (x) && (SCM_TYP7 (x) == scm_tc7_string))
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#define SCM_STRING_UCHARS(x) \
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((SCM_TYP7 (x) == scm_tc7_substring) \
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? (unsigned char *) SCM_CELL_WORD_1 (SCM_CDDR (x)) + SCM_INUM (SCM_CADR (x)) \
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: (unsigned char *) SCM_CELL_WORD_1 (x))
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#define SCM_STRING_CHARS(x) \
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((SCM_TYP7 (x) == scm_tc7_substring) \
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? (char *) SCM_CELL_WORD_1 (SCM_CDDR (x)) + SCM_INUM (SCM_CADR (x)) \
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: (char *) SCM_CELL_WORD_1 (x))
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extern SCM scm_make_shared_substring (SCM str, SCM frm, SCM to);
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extern SCM scm_makstr (size_t len, int);
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extern SCM scm_makfromstr (const char *src, size_t len, int);
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#endif /* SCM_DEBUG_DEPRECATED == 0 */
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#endif /* SCM_STRINGS_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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