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/* - mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 MySQL
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program 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
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include <drizzled/field/str.h>
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#include <drizzled/error.h>
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#include <drizzled/table.h>
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#include <drizzled/session.h>
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#include "drizzled/internal/m_string.h"
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extern char _dig_vec_upper[];
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Field_str::Field_str(unsigned char *ptr_arg,
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unsigned char *null_ptr_arg,
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unsigned char null_bit_arg,
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const char *field_name_arg,
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const CHARSET_INFO * const charset_arg)
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:Field(ptr_arg, len_arg,
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field_charset= charset_arg;
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if (charset_arg->state & MY_CS_BINSORT)
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field_derivation= DERIVATION_IMPLICIT;
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Check if we lost any important data and send a truncation error/warning
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Field_str::report_if_important_data()
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ptr - Truncated rest of string
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end - End of truncated string
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0 - None was truncated (or we don't count cut fields)
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2 - Some bytes was truncated
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Check if we lost any important data (anything in a binary string,
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or any non-space in others). If only trailing spaces was lost,
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send a truncation note, otherwise send a truncation error.
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Field_str::report_if_important_data(const char *field_ptr, const char *end)
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if ((field_ptr < end) && table->in_use->count_cuted_fields)
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if (test_if_important_data(field_charset, field_ptr, end))
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if (table->in_use->abort_on_warning)
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set_warning(DRIZZLE_ERROR::WARN_LEVEL_ERROR, ER_DATA_TOO_LONG, 1);
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set_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
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else /* If we lost only spaces then produce a NOTE, not a WARNING */
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set_warning(DRIZZLE_ERROR::WARN_LEVEL_NOTE, ER_WARN_DATA_TRUNCATED, 1);
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Decimal representation of Field_str.
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@param d value for storing
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Field_str is the base class for fields like Field_enum,
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Field_date and some similar. Some dates use fraction and also
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string value should be converted to floating point value according
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our rules, so we use double to store value of decimal in string.
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int Field_str::store_decimal(const my_decimal *d)
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char buff[DECIMAL_MAX_STR_LENGTH+1];
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String str(buff, sizeof(buff), &my_charset_bin);
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my_decimal2string(E_DEC_FATAL_ERROR, d, 0, 0, 0, &str);
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return store(str.ptr(), str.length(), str.charset());
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my_decimal *Field_str::val_decimal(my_decimal *decimal_value)
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int64_t nr= val_int();
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int2my_decimal(E_DEC_FATAL_ERROR, nr, 0, decimal_value);
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return decimal_value;
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Store double value in Field_varstring.
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Pretty prints double number into field_length characters buffer.
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int Field_str::store(double nr)
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char buff[DOUBLE_TO_STRING_CONVERSION_BUFFER_SIZE];
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uint32_t local_char_length= field_length / charset()->mbmaxlen;
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ASSERT_COLUMN_MARKED_FOR_WRITE;
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length= internal::my_gcvt(nr, internal::MY_GCVT_ARG_DOUBLE, local_char_length, buff, &error);
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if (table->in_use->abort_on_warning)
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set_warning(DRIZZLE_ERROR::WARN_LEVEL_ERROR, ER_DATA_TOO_LONG, 1);
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set_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
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return store(buff, length, charset());
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bool check_string_copy_error(Field_str *field,
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const char *well_formed_error_pos,
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const char *cannot_convert_error_pos,
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const CHARSET_INFO * const cs)
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const char *pos, *end_orig;
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if (!(pos= well_formed_error_pos) &&
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!(pos= cannot_convert_error_pos))
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set_if_smaller(end, pos + 6);
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for (t= tmp; pos < end; pos++)
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If the source string is ASCII compatible (mbminlen==1)
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and the source character is in ASCII printable range (0x20..0x7F),
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then display the character as is.
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Otherwise, if the source string is not ASCII compatible (e.g. UCS2),
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or the source character is not in the printable range,
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then print the character using HEX notation.
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if (((unsigned char) *pos) >= 0x20 &&
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((unsigned char) *pos) <= 0x7F &&
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*t++= internal::_dig_vec_upper[((unsigned char) *pos) >> 4];
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*t++= internal::_dig_vec_upper[((unsigned char) *pos) & 15];
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push_warning_printf(field->table->in_use,
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field->table->in_use->abort_on_warning ?
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DRIZZLE_ERROR::WARN_LEVEL_ERROR :
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DRIZZLE_ERROR::WARN_LEVEL_WARN,
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ER_TRUNCATED_WRONG_VALUE_FOR_FIELD,
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ER(ER_TRUNCATED_WRONG_VALUE_FOR_FIELD),
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"string", tmp, field->field_name,
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(uint32_t) field->table->in_use->row_count);
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uint32_t Field_str::max_data_length() const
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return field_length + (field_length > 255 ? 2 : 1);
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} /* namespace drizzled */