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-rw-r--r--libguile/mbstrings.c568
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diff --git a/libguile/mbstrings.c b/libguile/mbstrings.c
new file mode 100644
index 000000000..4d8bb1834
--- /dev/null
+++ b/libguile/mbstrings.c
@@ -0,0 +1,568 @@
+
+
+/* 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, 675 Mass Ave, Cambridge, MA 02139, 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.
+ */
+
+
+
+#include "extchrs.h"
+#include <stdio.h>
+#include "_scm.h"
+
+
+
+SCM_PROC(s_multi_byte_string_p, "multi-byte-string?", 1, 0, 0, scm_multi_byte_string_p);
+#ifdef __STDC__
+SCM
+scm_multi_byte_string_p (SCM obj)
+#else
+SCM
+scm_multi_byte_string_p (obj)
+ SCM obj;
+#endif
+{
+ return (SCM_MB_STRINGP (obj)
+ ? SCM_BOOL_T
+ : SCM_BOOL_F);
+}
+
+
+#ifdef __STDC__
+SCM
+scm_regular_string_p (SCM obj)
+#else
+SCM
+scm_regular_string_p (obj)
+ SCM obj;
+#endif
+{
+ return (SCM_REGULAR_STRINGP (obj)
+ ? SCM_BOOL_T
+ : SCM_BOOL_F);
+}
+
+SCM_PROC(s_list_to_multi_byte_string, "list->multi-byte-string", 1, 0, 0, scm_multi_byte_string);
+SCM_PROC(s_multi_byte_string, "multi-byte-string", 0, 0, 1, scm_multi_byte_string);
+#ifdef __STDC__
+SCM
+scm_multi_byte_string (SCM chrs)
+#else
+SCM
+scm_multi_byte_string (chrs)
+ SCM chrs;
+#endif
+{
+ SCM res;
+ register char *data;
+ long i;
+ long byte_len;
+
+ i = scm_ilength (chrs);
+ SCM_ASSERT (i >= 0, chrs, SCM_ARG1, s_multi_byte_string);
+ i = i * XMB_CUR_MAX;
+ res = scm_makstr (i, 0);
+ SCM_SETLENGTH (res, SCM_LENGTH (res), scm_tc7_mb_string);
+ data = SCM_CHARS (res);
+ byte_len = 0;
+ xwctomb (0, 0);
+ while (i && SCM_NNULLP (chrs))
+ {
+ int used;
+ SCM ch;
+
+ ch = SCM_CAR (chrs);
+ SCM_ASSERT (SCM_ICHRP (ch), chrs, SCM_ARG1, s_multi_byte_string);
+ used = xwctomb (data + byte_len, SCM_ICHR (ch));
+ SCM_ASSERT (used >= 0, chrs, SCM_ARG1, s_multi_byte_string);
+ byte_len += (used ? used : 1);
+ chrs = SCM_CDR (chrs);
+ --i;
+ }
+ res = scm_vector_set_length_x (res, SCM_MAKINUM (byte_len));
+ return res;
+}
+
+#ifdef __STDC__
+int
+scm_mb_ilength (unsigned char * data, int size)
+#else
+int
+scm_mb_ilength (data, size)
+ unsigned char * data;
+ int size;
+#endif
+{
+ int pos;
+ int len;
+
+ len = 0;
+ pos = 0;
+ xmblen (0, 0);
+ while (pos < size)
+ {
+ int inc;
+
+ inc = xmblen (data + pos, size - pos);
+ if (inc == 0)
+ ++inc;
+
+ if (inc < 0)
+ return -1;
+
+ ++len;
+ pos += inc;
+ }
+
+ return len;
+}
+
+SCM_PROC(s_multi_byte_string_length, "multi-byte-string-length", 1, 0, 0, scm_multi_byte_string_length);
+#ifdef __STDC__
+SCM
+scm_multi_byte_string_length (SCM str)
+#else
+SCM
+scm_multi_byte_string_length (str)
+ SCM str;
+#endif
+{
+ int size;
+ int len;
+ unsigned char * data;
+
+ SCM_ASSERT (SCM_NIMP (str) && SCM_ROSTRINGP (str), str, SCM_ARG1, s_multi_byte_string_length);
+
+ data = SCM_ROCHARS (str);
+ size = SCM_ROLENGTH (str);
+ len = scm_mb_ilength (data, size);
+ SCM_ASSERT (len >= 0, str, SCM_ARG1, s_multi_byte_string_length);
+ return SCM_MAKINUM (len);
+}
+
+
+SCM_PROC(s_symbol_multi_byte_p, "symbol-multi-byte?", 1, 0, 0, scm_symbol_multi_byte_p);
+#ifdef __STDC__
+SCM
+scm_symbol_multi_byte_p (SCM symbol)
+#else
+SCM
+scm_symbol_multi_byte_p (symbol)
+ SCM symbol;
+#endif
+{
+ return SCM_SYMBOL_MULTI_BYTE_SCM_STRINGP(symbol);
+}
+
+SCM_PROC(s_set_symbol_multi_byte_x, "set-symbol-multi-byte!", 2, 0, 0, scm_set_symbol_multi_byte_x);
+#ifdef __STDC__
+SCM
+scm_set_symbol_multi_byte_x (SCM symbol, SCM val)
+#else
+SCM
+scm_set_symbol_multi_byte_x (symbol, val)
+ SCM symbol;
+ SCM val;
+#endif
+{
+ if (SCM_TYP7 (symbol) == scm_tc7_msymbol)
+ {
+ SCM_SYMBOL_MULTI_BYTE_SCM_STRINGP(symbol) = (SCM_FALSEP (val)
+ ? SCM_BOOL_F
+ : SCM_BOOL_T);
+ }
+ return SCM_UNSPECIFIED;
+}
+
+
+SCM_PROC(s_regular_port_p, "regular-port?", 1, 0, 0, scm_regular_port_p);
+#ifdef __STDC__
+SCM
+scm_regular_port_p (SCM p)
+#else
+SCM
+scm_regular_port_p (p)
+ SCM p;
+#endif
+{
+ return (SCM_PORT_REPRESENTATION(p) == scm_regular_port
+ ? SCM_BOOL_T
+ : SCM_BOOL_F);
+}
+
+SCM_PROC(s_regular_port_x, "regular-port!", 1, 0, 0, scm_regular_port_x);
+#ifdef __STDC__
+SCM
+scm_regular_port_x (SCM p)
+#else
+SCM
+scm_regular_port_x (p)
+ SCM p;
+#endif
+{
+ SCM_PORT_REPRESENTATION(p) = scm_regular_port;
+ return SCM_UNSPECIFIED;
+}
+
+SCM_PROC(s_multi_byte_port_p, "multi-byte-port?", 1, 0, 0, scm_multi_byte_port_p);
+#ifdef __STDC__
+SCM
+scm_multi_byte_port_p (SCM p)
+#else
+SCM
+scm_multi_byte_port_p (p)
+ SCM p;
+#endif
+{
+ return (SCM_PORT_REPRESENTATION(p) == scm_mb_port
+ ? SCM_BOOL_T
+ : SCM_BOOL_F);
+}
+
+SCM_PROC(s_multi_byte_port_x, "multi-byte-port!", 1, 0, 0, scm_multi_byte_port_x);
+#ifdef __STDC__
+SCM
+scm_multi_byte_port_x (SCM p)
+#else
+SCM
+scm_multi_byte_port_x (p)
+ SCM p;
+#endif
+{
+ SCM_PORT_REPRESENTATION(p) = scm_mb_port;
+ return SCM_UNSPECIFIED;
+}
+
+
+SCM_PROC(s_wide_character_port_p, "wide-character-port?", 1, 0, 0, scm_wide_character_port_p);
+#ifdef __STDC__
+SCM
+scm_wide_character_port_p (SCM p)
+#else
+SCM
+scm_wide_character_port_p (p)
+ SCM p;
+#endif
+{
+ return (SCM_PORT_REPRESENTATION(p) == scm_wchar_port
+ ? SCM_BOOL_T
+ : SCM_BOOL_F);
+}
+
+SCM_PROC(s_wide_character_port_x, "wide-character-port!", 1, 0, 0, scm_wide_character_port_x);
+#ifdef __STDC__
+SCM
+scm_wide_character_port_x (SCM p)
+#else
+SCM
+scm_wide_character_port_x (p)
+ SCM p;
+#endif
+{
+ SCM_PORT_REPRESENTATION(p) = scm_wchar_port;
+ return SCM_UNSPECIFIED;
+}
+
+
+
+
+
+#ifdef __STDC__
+void
+scm_put_wchar (int c, SCM port, int writing)
+#else
+void
+scm_put_wchar (c, port, writing)
+ int c;
+ SCM port;
+ int writing;
+#endif
+{
+ if (writing)
+ scm_gen_puts (scm_regular_string, "#\\", port);
+ switch (SCM_PORT_REPRESENTATION (port))
+ {
+ case scm_regular_port:
+ {
+ if (c < 256)
+ {
+ if (!writing)
+ scm_gen_putc ((unsigned char)c, port);
+ else if ((c <= ' ') && scm_charnames[c])
+ scm_gen_puts (scm_regular_string, scm_charnames[c], port);
+ else if (c > '\177')
+ scm_intprint (c, 8, port);
+ else
+ scm_gen_putc ((int) c, port);
+ }
+ else
+ {
+ print_octal:
+ if (!writing)
+ scm_gen_putc ('\\', port);
+ scm_intprint (c, 8, port);
+ }
+ break;
+ }
+
+ case scm_mb_port:
+ {
+ char buf[256];
+ int len;
+
+ if (XMB_CUR_MAX > sizeof (buf))
+ goto print_octal;
+
+ len = xwctomb (buf, c);
+
+ if (len < 0)
+ goto print_octal;
+
+ if (len == 0)
+ scm_gen_putc (0, port);
+ else
+ scm_gen_putc (c, port);
+ break;
+ }
+
+ case scm_wchar_port:
+ {
+ scm_gen_putc (c, port);
+ break;
+ }
+ }
+}
+
+
+
+
+
+#ifdef __STDC__
+void
+scm_print_mb_string (SCM exp, SCM port, int writing)
+#else
+void
+scm_print_mb_string (exp, port, writing)
+ SCM exp;
+ SCM port;
+ int writing;
+#endif
+{
+ if (writing)
+ {
+ int i;
+ int len;
+ char * data;
+
+ scm_gen_putc ('\"', port);
+ i = 0;
+ len = SCM_ROLENGTH (exp);
+ data = SCM_ROCHARS (exp);
+
+ while (i < len)
+ {
+ xwchar_t c;
+ int inc;
+
+ inc = xmbtowc (&c, data + i, len - i);
+ if (inc == 0)
+ inc = 1;
+ if (inc < 0)
+ {
+ inc = 1;
+ c = data[i];
+ }
+ i += inc;
+ switch (c)
+ {
+ case '\"':
+ case '\\':
+ scm_gen_putc ('\\', port);
+ default:
+ scm_gen_putc (c, port);
+ }
+ }
+ scm_gen_putc ('\"', port);
+ }
+ else
+ scm_gen_write (scm_mb_string, SCM_ROCHARS (exp), SCM_ROLENGTH (exp), port);
+}
+
+
+#ifdef __STDC__
+void
+scm_print_mb_symbol (SCM exp, SCM port)
+#else
+void
+scm_print_mb_symbol (exp, port)
+ SCM exp;
+ SCM port;
+#endif
+{
+ int pos;
+ int end;
+ int len;
+ char * str;
+ int weird;
+ int maybe_weird;
+ int mw_pos;
+ int inc;
+ xwchar_t c;
+
+ len = SCM_LENGTH (exp);
+ str = SCM_CHARS (exp);
+ scm_remember (&exp);
+ pos = 0;
+ weird = 0;
+ maybe_weird = 0;
+
+ for (end = pos; end < len; end += inc)
+ {
+ inc = xmbtowc (&c, str + end, len - end);
+ if (inc < 0)
+ {
+ inc = 1;
+ c = str[end];
+ goto weird_handler;
+ }
+ if (inc == 0)
+ {
+ inc = 1;
+ goto weird_handler;
+ }
+ switch (c)
+ {
+#ifdef BRACKETS_AS_PARENS
+ case '[':
+ case ']':
+#endif
+ case '(':
+ case ')':
+ case '\"':
+ case ';':
+ case SCM_WHITE_SPACES:
+ case SCM_LINE_INCREMENTORS:
+ weird_handler:
+ if (maybe_weird)
+ {
+ end = mw_pos;
+ maybe_weird = 0;
+ }
+ if (!weird)
+ {
+ scm_gen_write (scm_regular_string, "#{", 2, port);
+ weird = 1;
+ }
+ if (pos < end)
+ {
+ int q;
+ int qinc;
+
+ q = pos;
+ while (q < end)
+ {
+ qinc = xmbtowc (&c, str + q, end - q);
+ if (inc <= 0)
+ {
+ inc = 1;
+ c = str[q];
+ }
+ scm_gen_putc (c, port);
+ q += qinc;
+ }
+ }
+ {
+ char buf[2];
+ buf[0] = '\\';
+ buf[1] = str[end];
+ scm_gen_write (scm_regular_string, buf, 2, port);
+ }
+ pos = end + 1;
+ break;
+ case '\\':
+ if (weird)
+ goto weird_handler;
+ if (!maybe_weird)
+ {
+ maybe_weird = 1;
+ mw_pos = pos;
+ }
+ break;
+ case '}':
+ case '#':
+ if (weird)
+ goto weird_handler;
+ break;
+ default:
+ break;
+ }
+ }
+ if (pos < end)
+ {
+ int q;
+ int qinc;
+ q = pos;
+ while (q < end)
+ {
+ qinc = xmbtowc (&c, str + q, end - q);
+ if (inc <= 0)
+ inc = 1;
+ scm_gen_putc (c, port);
+ q += qinc;
+ }
+ }
+ if (weird)
+ scm_gen_write (scm_regular_string, "}#", 2, port);
+}
+
+
+
+
+#ifdef __STDC__
+void
+scm_init_mbstrings (void)
+#else
+void
+scm_init_mbstrings ()
+#endif
+{
+#include "mbstrings.x"
+}
+