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cc95e00ac6
scm_i_string_writable_chars, scm_i_string_stop_writing): New, to replace SCM_I_STRING_CHARS and SCM_I_STRING_LENGTH. Updated all uses. (scm_i_make_string, scm_c_make_string): New, to replace scm_allocate_string. Updated all uses. (SCM_STRINGP, SCM_STRING_CHARS, SCM_STRING_UCHARS, SCM_STRING_LENGTH): Deprecated. (scm_allocate_string, scm_take_str, scm_take0str, scm_mem2string, scm_str2string, scm_makfrom0str, scm_makfrom0str_opt): Discouraged. Replaced all uses with scm_from_locale_string or similar, as appropriate. (scm_c_string_length, scm_c_string_ref, scm_c_string_set_x, scm_c_substring, scm_c_substring_shared, scm_c_substring_copy, scm_substring_shared, scm_substring_copy): New. * symbols.c, symbols.h (SCM_SYMBOLP, SCM_SYMBOL_FUNC, SCM_SET_SYMBOL_FUNC, SCM_SYMBOL_PROPS, SCM_SET_SYMBOL_PROPS, SCM_SYMBOL_HASH, SCM_SYMBOL_INTERNED_P, scm_mem2symbol, scm_str2symbol, scm_mem2uninterned_symbol): Discouraged. (SCM_SYMBOL_LENGTH, SCM_SYMBOL_CHARS, scm_c_symbol2str): Deprecated. (SCM_MAKE_SYMBOL_TAG, SCM_SET_SYMBOL_LENGTH, SCM_SET_SYMBOL_CHARS, SCM_PROP_SLOTS, SCM_SET_PROP_SLOTS): Removed. (scm_is_symbol, scm_from_locale_symbol, scm_from_locale_symboln): New, to replace scm_str2symbol and scm_mem2symbol, respectively. Updated all uses. (scm_gensym): Generate only the number suffix in the buffer, just string-append the prefix.
128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <string.h>
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#include "libguile/_scm.h"
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#include "libguile/ports.h"
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#include "libguile/root.h"
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#include "libguile/smob.h"
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#include "libguile/hashtab.h"
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#include "libguile/validate.h"
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#include "libguile/keywords.h"
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#include "libguile/strings.h"
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scm_t_bits scm_tc16_keyword;
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static int
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keyword_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED)
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{
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SCM symbol = SCM_KEYWORDSYM (exp);
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scm_puts ("#:", port);
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scm_print_symbol_name (scm_i_symbol_chars (symbol) + 1,
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scm_i_symbol_length (symbol) - 1,
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port);
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scm_remember_upto_here_1 (symbol);
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return 1;
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}
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SCM_DEFINE (scm_make_keyword_from_dash_symbol, "make-keyword-from-dash-symbol", 1, 0, 0,
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(SCM symbol),
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"Make a keyword object from a @var{symbol} that starts with a dash.")
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#define FUNC_NAME s_scm_make_keyword_from_dash_symbol
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{
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SCM keyword;
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SCM_ASSERT (scm_is_symbol (symbol)
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&& ('-' == scm_i_symbol_chars(symbol)[0]),
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symbol, SCM_ARG1, FUNC_NAME);
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SCM_DEFER_INTS;
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keyword = scm_hashq_ref (scm_keyword_obarray, symbol, SCM_BOOL_F);
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if (scm_is_false (keyword))
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{
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SCM_NEWSMOB (keyword, scm_tc16_keyword, SCM_UNPACK (symbol));
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scm_hashq_set_x (scm_keyword_obarray, symbol, keyword);
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}
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SCM_ALLOW_INTS;
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return keyword;
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}
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#undef FUNC_NAME
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SCM
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scm_c_make_keyword (char *s)
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{
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char *buf;
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size_t len;
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SCM string, symbol;
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len = strlen (s) + 1;
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string = scm_i_make_string (len, &buf);
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buf[0] = '-';
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strcpy (buf + 1, s);
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symbol = scm_string_to_symbol (string);
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return scm_make_keyword_from_dash_symbol (symbol);
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}
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SCM_DEFINE (scm_keyword_p, "keyword?", 1, 0, 0,
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(SCM obj),
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"Return @code{#t} if the argument @var{obj} is a keyword, else\n"
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"@code{#f}.")
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#define FUNC_NAME s_scm_keyword_p
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{
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return scm_from_bool (SCM_KEYWORDP (obj));
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}
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#undef FUNC_NAME
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SCM_DEFINE (scm_keyword_dash_symbol, "keyword-dash-symbol", 1, 0, 0,
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(SCM keyword),
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"Return the dash symbol for @var{keyword}.\n"
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"This is the inverse of @code{make-keyword-from-dash-symbol}.")
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#define FUNC_NAME s_scm_keyword_dash_symbol
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{
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SCM_VALIDATE_KEYWORD (1, keyword);
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return SCM_KEYWORDSYM (keyword);
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}
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#undef FUNC_NAME
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void
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scm_init_keywords ()
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{
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scm_tc16_keyword = scm_make_smob_type ("keyword", 0);
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scm_set_smob_mark (scm_tc16_keyword, scm_markcdr);
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scm_set_smob_print (scm_tc16_keyword, keyword_print);
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scm_keyword_obarray = scm_c_make_hash_table (0);
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#include "libguile/keywords.x"
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}
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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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