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81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
#ifndef GSTREAM_INCLUDED
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#define GSTREAM_INCLUDED
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/* Copyright (C) 2000-2004 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; version 2 of the License.
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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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class Gis_read_stream
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{
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public:
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enum enum_tok_types
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{
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unknown,
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eostream,
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word,
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numeric,
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l_bra,
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r_bra,
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comma
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};
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Gis_read_stream(CHARSET_INFO *charset, const char *buffer, int size)
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:m_cur(buffer), m_limit(buffer + size), m_err_msg(NULL), m_charset(charset)
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{}
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Gis_read_stream(): m_cur(NullS), m_limit(NullS), m_err_msg(NullS)
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{}
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~Gis_read_stream()
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{
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my_free((uchar*) m_err_msg, MYF(MY_ALLOW_ZERO_PTR));
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}
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enum enum_tok_types get_next_toc_type();
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bool get_next_word(LEX_STRING *);
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bool get_next_number(double *);
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bool check_next_symbol(char);
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inline void skip_space()
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{
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while ((m_cur < m_limit) && my_isspace(&my_charset_latin1, *m_cur))
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m_cur++;
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}
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/* Skip next character, if match. Return 1 if no match */
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inline bool skip_char(char skip)
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{
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skip_space();
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if ((m_cur >= m_limit) || *m_cur != skip)
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return 1; /* Didn't find char */
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m_cur++;
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return 0;
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}
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void set_error_msg(const char *msg);
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// caller should free this pointer
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char *get_error_msg()
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{
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char *err_msg = m_err_msg;
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m_err_msg= NullS;
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return err_msg;
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}
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protected:
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const char *m_cur;
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const char *m_limit;
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char *m_err_msg;
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CHARSET_INFO *m_charset;
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};
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#endif /* GSTREAM_INCLUDED */
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