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#ifndef GSTREAM_INCLUDED #define GSTREAM_INCLUDED /* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. This program 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; version 2 of the License. This program 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 this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ #include <my_sys.h> /* MY_ALLOW_ZERO_PTR */ #include "m_ctype.h" /* my_charset_latin1, my_charset_bin */ class Gis_read_stream { public: enum enum_tok_types { unknown, eostream, word, numeric, l_bra, r_bra, comma }; Gis_read_stream(CHARSET_INFO *charset, const char *buffer, int size) :m_cur(buffer), m_limit(buffer + size), m_err_msg(NULL), m_charset(charset) {} Gis_read_stream(): m_cur(NullS), m_limit(NullS), m_err_msg(NullS) {} ~Gis_read_stream() { my_free(m_err_msg); } enum enum_tok_types get_next_toc_type(); bool lookup_next_word(LEX_STRING *res); bool get_next_word(LEX_STRING *); bool get_next_number(double *); bool check_next_symbol(char); inline void skip_space() { while ((m_cur < m_limit) && my_isspace(&my_charset_latin1, *m_cur)) m_cur++; } /* Skip next character, if match. Return 1 if no match */ inline bool skip_char(char skip) { skip_space(); if ((m_cur >= m_limit) || *m_cur != skip) return 1; /* Didn't find char */ m_cur++; return 0; } /* Returns the next notempty character. */ char next_symbol() { skip_space(); if (m_cur >= m_limit) return 0; /* EOL meet. */ return *m_cur; } void set_error_msg(const char *msg); // caller should free this pointer char *get_error_msg() { char *err_msg = m_err_msg; m_err_msg= NullS; return err_msg; } protected: const char *m_cur; const char *m_limit; char *m_err_msg; CHARSET_INFO *m_charset; }; #endif /* GSTREAM_INCLUDED */
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