New file needed for character set conversions

diff --git a/src/charset-converter.cpp b/src/charset-converter.cpp
new file mode 100644 (file)
index 0000000..4a9b8c3
--- /dev/null
+++ b/src/charset-converter.cpp
@@ -0,0 +1,117 @@
+/* $Id: charset-converter.cpp,v 1.1 2005-05-04 08:35:03 adam Exp $
+   Copyright (c) 1998-2005, Index Data.
+
+This file is part of the yaz-proxy.
+
+YAZ proxy 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.
+
+YAZ proxy 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 YAZ proxy; see the file LICENSE.  If not, write to the
+Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+ */
+
+#include <yaz/proto.h>
+#include "proxyp.h"
+
+Yaz_CharsetConverter::Yaz_CharsetConverter()
+{
+    m_wrbuf = wrbuf_alloc();
+    m_target_query_charset = 0;
+    m_client_query_charset = 0;
+}
+
+Yaz_CharsetConverter::~Yaz_CharsetConverter()
+{
+    wrbuf_free(m_wrbuf, 1);
+    xfree(m_target_query_charset);
+    xfree(m_client_query_charset);
+}
+
+void Yaz_CharsetConverter::set_target_query_charset(const char *s)
+{
+    xfree(m_target_query_charset);
+    m_target_query_charset = 0;
+    if (s)
+       m_target_query_charset = xstrdup(s);
+}
+
+void Yaz_CharsetConverter::set_client_query_charset(const char *s)
+{
+    xfree(m_client_query_charset);
+    m_client_query_charset = 0;
+    if (s)
+       m_client_query_charset = xstrdup(s);
+}
+
+void Yaz_CharsetConverter::convert_type_1(char *buf_in, int len_in,
+                                         char **buf_out, int *len_out,
+                                         ODR o)
+{
+    wrbuf_rewind(m_wrbuf);
+    wrbuf_iconv_write(m_wrbuf, m_ct, buf_in, len_in);
+    
+    *len_out = wrbuf_len(m_wrbuf);
+    *buf_out = (char*) odr_malloc(o, *len_out);
+    memcpy(*buf_out, wrbuf_buf(m_wrbuf), *len_out);
+}
+
+void Yaz_CharsetConverter::convert_type_1(Z_Term *q, ODR o)
+{
+    switch(q->which)
+    {
+    case Z_Term_general:
+       convert_type_1((char *) q->u.general->buf, q->u.general->len,
+                      (char **) &q->u.general->buf, &q->u.general->len, o);
+       break;
+    }
+}
+
+void Yaz_CharsetConverter::convert_type_1(Z_Operand *q, ODR o)
+{
+    switch(q->which)
+    {
+    case Z_Operand_APT:
+       convert_type_1(q->u.attributesPlusTerm->term, o);
+       break;
+    case Z_Operand_resultSetId:
+       break;
+    case Z_Operand_resultAttr:
+       break;
+    }
+}
+
+void Yaz_CharsetConverter::convert_type_1(Z_RPNStructure *q, ODR o)
+{
+    switch(q->which)
+    {
+    case Z_RPNStructure_simple:
+       convert_type_1(q->u.simple, o);
+       break;
+    case Z_RPNStructure_complex:
+       convert_type_1(q->u.complex->s1, o);
+       convert_type_1(q->u.complex->s2, o);
+       break;
+    }
+}
+void Yaz_CharsetConverter::convert_type_1(Z_RPNQuery *q, ODR o)
+{
+    if (m_target_query_charset && m_client_query_charset)
+    {
+       m_ct = yaz_iconv_open(m_target_query_charset,
+                             m_client_query_charset);
+       if (m_ct)
+       {
+           convert_type_1(q->RPNStructure, o);
+           yaz_iconv_close(m_ct);
+       }
+    }
+}