mirror of
https://github.com/MariaDB/server.git
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afa6728a9f
heap/hp_delete.c: Added comments mysql-test/r/gis.result: Updated results after name changes (all results line are unchanged) mysql-test/r/show_check.result: Update test results after fix in hp_delete.cc mysql-test/t/gis.test: Changed table names to longer, hopefully non conflicting ones. Added missing drop table mysys/hash.c: Inendation cleanup mysys/tree.c: Updated comments Decrease tree->allocated on delete (for status) sql/field.cc: Added safety checking for GIS objects sql/gstream.cc: Added copyright message Made a lot of speed/space optimizations Changed class names to be MySQL compliant sql/gstream.h: Made a lot of speed/space optimizations Changed class names to be MySQL compliant sql/item_create.cc: Indentation fixup sql/item_geofunc.cc: Use new gis interface functions and new gis class names. Simple optimizations Indentation fixups Fixed a lot of unlikely but possible errors. sql/item_geofunc.h: Moved SRID_SIZE to spatial.h sql/spatial.cc: Added copyright message Made a lot of speed/space optimizations Changed class names to be MySQL compliant sql/spatial.h: Made a lot of speed/space optimizations Changed class names to be MySQL compliant Indentation fixes Use bool instead of int as result type for functions that only return 0 or 1 sql/sql_string.cc: Simple optimizations sql/sql_string.h: Simple cleanups sql/structs.h: Added LEX_STRING_WITH_INIT (needed by spatial.cc)
115 lines
2.7 KiB
C++
115 lines
2.7 KiB
C++
/* Copyright (C) 2004 MySQL AB
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/*
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Functions to read and parse geometrical data.
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NOTE: These functions assumes that the string is end \0 terminated!
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*/
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#include "mysql_priv.h"
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enum Gis_read_stream::enum_tok_types Gis_read_stream::get_next_toc_type()
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{
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skip_space();
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if (!*m_cur)
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return eostream;
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if (my_isvar_start(&my_charset_bin, *m_cur))
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return word;
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if ((*m_cur >= '0' && *m_cur <= '9') || *m_cur == '-' || *m_cur == '+')
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return numeric;
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if (*m_cur == '(')
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return l_bra;
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if (*m_cur == ')')
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return r_bra;
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if (*m_cur == ',')
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return comma;
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return unknown;
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}
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bool Gis_read_stream::get_next_word(LEX_STRING *res)
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{
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skip_space();
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res->str= (char*) m_cur;
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/* The following will also test for \0 */
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if (!my_isvar_start(&my_charset_bin, *m_cur))
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return 1;
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/*
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We can't combine the following increment with my_isvar() because
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my_isvar() is a macro that would cause side effects
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*/
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m_cur++;
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while (my_isvar(&my_charset_bin, *m_cur))
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m_cur++;
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res->length= (uint32) (m_cur - res->str);
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return 0;
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}
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/*
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Read a floating point number
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NOTE: Number must start with a digit or sign. It can't start with a decimal
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point
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*/
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bool Gis_read_stream::get_next_number(double *d)
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{
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char *endptr;
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skip_space();
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/* The following will also test for end \0 */
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if ((*m_cur < '0' || *m_cur > '9') && *m_cur != '-' && *m_cur != '+')
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{
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set_error_msg("Numeric constant expected");
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return 1;
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}
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*d = my_strtod(m_cur, &endptr);
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if (endptr)
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m_cur = endptr;
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return 0;
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}
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bool Gis_read_stream::check_next_symbol(char symbol)
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{
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skip_space();
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if (*m_cur != symbol)
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{
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char buff[32];
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strmov(buff, "'?' expected");
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buff[2]= symbol;
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set_error_msg(buff);
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return 1;
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}
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m_cur++;
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return 0;
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}
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/*
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Remember error message.
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*/
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void Gis_read_stream::set_error_msg(const char *msg)
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{
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size_t len= strlen(msg); // ok in this context
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m_err_msg= (char *) my_realloc(m_err_msg, len + 1, MYF(MY_ALLOW_ZERO_PTR));
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memcpy(m_err_msg, msg, len + 1);
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}
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