-/* classes: h_files */
-
-#ifndef SCM_CHARSH
-#define SCM_CHARSH
-/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 USA
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice. */
-\f
-
-#include "libguile/__scm.h"
-
-\f
-/* Immediate Characters
- */
-#define SCM_CHARP(x) (SCM_ITAG8(x) == scm_tc8_char)
-#define SCM_CHAR(x) ((unsigned int)SCM_ITAG8_DATA(x))
-#define SCM_MAKE_CHAR(x) SCM_MAKE_ITAG8(x, scm_tc8_char)
-
-#define SCM_ICHRP(x) SCM_CHARP(x) /* deprecated */
-#define SCM_ICHR(x) SCM_CHAR(x) /* deprecated */
-#define SCM_MAKICHR(x) SCM_MAKE_CHAR(x) /* deprecated */
-
-\f
-
-extern char *const scm_charnames[];
-extern int scm_n_charnames;
-extern const char scm_charnums[];
-
-\f
-
-extern SCM scm_char_p (SCM x);
-extern SCM scm_char_eq_p (SCM x, SCM y);
-extern SCM scm_char_less_p (SCM x, SCM y);
-extern SCM scm_char_leq_p (SCM x, SCM y);
-extern SCM scm_char_gr_p (SCM x, SCM y);
-extern SCM scm_char_geq_p (SCM x, SCM y);
-extern SCM scm_char_ci_eq_p (SCM x, SCM y);
-extern SCM scm_char_ci_less_p (SCM x, SCM y);
-extern SCM scm_char_ci_leq_p (SCM x, SCM y);
-extern SCM scm_char_ci_gr_p (SCM x, SCM y);
-extern SCM scm_char_ci_geq_p (SCM x, SCM y);
-extern SCM scm_char_alphabetic_p (SCM chr);
-extern SCM scm_char_numeric_p (SCM chr);
-extern SCM scm_char_whitespace_p (SCM chr);
-extern SCM scm_char_upper_case_p (SCM chr);
-extern SCM scm_char_lower_case_p (SCM chr);
-extern SCM scm_char_is_both_p (SCM chr);
-extern SCM scm_char_to_integer (SCM chr);
-extern SCM scm_integer_to_char (SCM n);
-extern SCM scm_char_upcase (SCM chr);
-extern SCM scm_char_downcase (SCM chr);
-extern void scm_tables_prehistory (void);
-extern int scm_upcase (unsigned int c);
-extern int scm_downcase (unsigned int c);
-extern void scm_init_chars (void);
-
-#endif /* SCM_CHARSH */
+/* classes: h_files */
+
+#ifndef SCM_CHARS_H
+#define SCM_CHARS_H
+
+/* Copyright (C) 1995,1996,2000,2001,2004, 2006, 2008, 2009 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+\f
+
+#include "libguile/__scm.h"
+
+#ifndef SCM_T_WCHAR_DEFINED
+typedef scm_t_int32 scm_t_wchar;
+#define SCM_T_WCHAR_DEFINED
+#endif /* SCM_T_WCHAR_DEFINED */
+
+\f
+/* Immediate Characters
+ */
+#define SCM_CHARP(x) (SCM_ITAG8(x) == scm_tc8_char)
+#define SCM_CHAR(x) ((scm_t_wchar)SCM_ITAG8_DATA(x))
+
+/* SCM_MAKE_CHAR maps signed chars (-128 to 127) and unsigned chars (0
+ to 255) to Latin-1 codepoints (0 to 255) while allowing higher
+ codepoints (256 to 1114111) to pass through unchanged.
+
+ This macro evaluates x twice, which may lead to side effects if not
+ used properly. */
+#define SCM_MAKE_CHAR(x) \
+ ((x) <= 1 \
+ ? SCM_MAKE_ITAG8 ((scm_t_bits) (unsigned char) (x), scm_tc8_char) \
+ : SCM_MAKE_ITAG8 ((scm_t_bits) (x), scm_tc8_char))
+
+#define SCM_CODEPOINT_DOTTED_CIRCLE (0x25cc)
+#define SCM_CODEPOINT_SURROGATE_START (0xd800)
+#define SCM_CODEPOINT_SURROGATE_END (0xdfff)
+#define SCM_CODEPOINT_MAX (0x10ffff)
+#define SCM_IS_UNICODE_CHAR(c) \
+ (((scm_t_wchar) (c) >= 0 \
+ && (scm_t_wchar) (c) < SCM_CODEPOINT_SURROGATE_START) \
+ || ((scm_t_wchar) (c) > SCM_CODEPOINT_SURROGATE_END \
+ && (scm_t_wchar) (c) <= SCM_CODEPOINT_MAX))
+
+\f
+
+SCM_API SCM scm_char_p (SCM x);
+SCM_API SCM scm_char_eq_p (SCM x, SCM y);
+SCM_API SCM scm_char_less_p (SCM x, SCM y);
+SCM_API SCM scm_char_leq_p (SCM x, SCM y);
+SCM_API SCM scm_char_gr_p (SCM x, SCM y);
+SCM_API SCM scm_char_geq_p (SCM x, SCM y);
+SCM_API SCM scm_char_ci_eq_p (SCM x, SCM y);
+SCM_API SCM scm_char_ci_less_p (SCM x, SCM y);
+SCM_API SCM scm_char_ci_leq_p (SCM x, SCM y);
+SCM_API SCM scm_char_ci_gr_p (SCM x, SCM y);
+SCM_API SCM scm_char_ci_geq_p (SCM x, SCM y);
+SCM_API SCM scm_char_alphabetic_p (SCM chr);
+SCM_API SCM scm_char_numeric_p (SCM chr);
+SCM_API SCM scm_char_whitespace_p (SCM chr);
+SCM_API SCM scm_char_upper_case_p (SCM chr);
+SCM_API SCM scm_char_lower_case_p (SCM chr);
+SCM_API SCM scm_char_is_both_p (SCM chr);
+SCM_API SCM scm_char_to_integer (SCM chr);
+SCM_API SCM scm_integer_to_char (SCM n);
+SCM_API SCM scm_char_upcase (SCM chr);
+SCM_API SCM scm_char_downcase (SCM chr);
+SCM_API SCM scm_char_titlecase (SCM chr);
+SCM_API SCM scm_char_general_category (SCM chr);
+SCM_API scm_t_wchar scm_c_upcase (scm_t_wchar c);
+SCM_API scm_t_wchar scm_c_downcase (scm_t_wchar c);
+SCM_API scm_t_wchar scm_c_titlecase (scm_t_wchar c);
+SCM_INTERNAL const char *scm_i_charname (SCM chr);
+SCM_INTERNAL SCM scm_i_charname_to_char (const char *charname,
+ size_t charname_len);
+SCM_INTERNAL void scm_init_chars (void);
+
+#endif /* SCM_CHARS_H */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff