Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 96 insertions, 0 deletions

diff --git a/storage/mroonga/lib/mrn_index_column_name.cpp b/storage/mroonga/lib/mrn_index_column_name.cpp
new file mode 100644
index 00000000..1a19b9d1
--- /dev/null
+++ b/storage/mroonga/lib/mrn_index_column_name.cpp
@@ -0,0 +1,96 @@
+/* -*- c-basic-offset: 2 -*- */
+/*
+  Copyright(C) 2011-2013 Kentoku SHIBA
+  Copyright(C) 2011-2012 Kouhei Sutou <kou@clear-code.com>
+
+  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 2.1 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  02110-1335  USA
+*/
+
+#include <mrn_mysql.h>
+
+#include "mrn_index_column_name.hpp"
+
+#define MRN_MIN_INDEX_COLUMN_NAME_LENGTH 65
+
+// for debug
+#define MRN_CLASS_NAME "mrn::IndexColumnName"
+
+namespace mrn {
+  IndexColumnName::IndexColumnName(const char *table_name,
+                                 const char *mysql_column_name)
+    : table_name_(table_name),
+      mysql_column_name_(mysql_column_name) {
+    uchar encoded_mysql_column_name_multibyte[MRN_MAX_KEY_SIZE];
+    const uchar *mysql_column_name_multibyte =
+      reinterpret_cast<const uchar *>(mysql_column_name_);
+    encode(encoded_mysql_column_name_multibyte,
+           encoded_mysql_column_name_multibyte + MRN_MAX_KEY_SIZE,
+           mysql_column_name_multibyte,
+           mysql_column_name_multibyte + strlen(mysql_column_name_));
+    snprintf(name_, MRN_MAX_KEY_SIZE,
+             "%s-%s", table_name_, encoded_mysql_column_name_multibyte);
+    length_ = strlen(name_);
+    if (length_ < MRN_MIN_INDEX_COLUMN_NAME_LENGTH) {
+      memset(name_ + length_, '-', MRN_MIN_INDEX_COLUMN_NAME_LENGTH - length_);
+      length_ = MRN_MIN_INDEX_COLUMN_NAME_LENGTH;
+      name_[length_] = '\0';
+    }
+  }
+
+  const char *IndexColumnName::c_str() {
+    return name_;
+  }
+
+  size_t IndexColumnName::length() {
+    return length_;
+  }
+
+  uint IndexColumnName::encode(uchar *encoded_start,
+                              uchar *encoded_end,
+                              const uchar *mysql_string_start,
+                              const uchar *mysql_string_end) {
+    MRN_DBUG_ENTER_METHOD();
+    my_charset_conv_mb_wc mb_wc = system_charset_info->cset->mb_wc;
+    my_charset_conv_wc_mb wc_mb = my_charset_filename.cset->wc_mb;
+    DBUG_PRINT("info", ("mroonga: in=%s", mysql_string_start));
+    encoded_end--;
+    uchar *encoded = encoded_start;
+    const uchar *mysql_string = mysql_string_start;
+    while (mysql_string < mysql_string_end && encoded < encoded_end) {
+      my_wc_t wc;
+      int mb_wc_converted_length;
+      int wc_mb_converted_length;
+      mb_wc_converted_length =
+        (*mb_wc)(NULL, &wc, mysql_string, mysql_string_end);
+      if (mb_wc_converted_length > 0) {
+        wc_mb_converted_length = (*wc_mb)(NULL, wc, encoded, encoded_end);
+        if (wc_mb_converted_length <= 0) {
+          break;
+        }
+      } else if (mb_wc_converted_length == MY_CS_ILSEQ) {
+        *encoded = *mysql_string;
+        mb_wc_converted_length = 1;
+        wc_mb_converted_length = 1;
+      } else {
+        break;
+      }
+      mysql_string += mb_wc_converted_length;
+      encoded += wc_mb_converted_length;
+    }
+    *encoded = '\0';
+    DBUG_PRINT("info", ("mroonga: out=%s", encoded_start));
+    DBUG_RETURN(encoded - encoded_start);
+  }
+}