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65 lines
2.4 KiB
65 lines
2.4 KiB
/* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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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, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, 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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#ifndef REGULAR_EXPRESSIONS_INCLUDED
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#define REGULAR_EXPRESSIONS_INCLUDED
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#include <regex>
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#include "mysql/psi/psi_base.h"
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#include "prealloced_array.h"
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extern std::regex explain_re;
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extern std::regex opt_trace_re;
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extern std::regex ps_re;
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extern std::regex sp_re;
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extern std::regex view_re;
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struct st_regex {
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char *pattern; /* Pattern to be replaced */
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char *replace; /* String or expression to replace the pattern with */
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int icase; /* true if the match is case insensitive */
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};
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struct st_replace_regex {
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st_replace_regex() : regex_arr(PSI_NOT_INSTRUMENTED) {}
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/* stores a list of st_regex subsitutions */
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Prealloced_array<st_regex, 128> regex_arr;
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/*
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Temporary storage areas for substitutions. To reduce unnessary copying
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and memory freeing/allocation, we pre-allocate two buffers, and alternate
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their use, one for input/one for output, the roles changing on the next
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st_regex substition. At the end of substitutions buf points to the
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one containing the final result.
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*/
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char *buf{nullptr};
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char *even_buf{nullptr};
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char *odd_buf{nullptr};
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int even_buf_len{0};
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int odd_buf_len{0};
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};
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int multi_reg_replace(struct st_replace_regex *r, char *val, size_t *len);
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int search_protocol_re(std::regex *re, const char *str);
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#endif // REGULAR_EXPRESSIONS_INCLUDED
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