83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
#ifndef ITEM_XMLFUNC_INCLUDED
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#define ITEM_XMLFUNC_INCLUDED
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/* Copyright (c) 2000, 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 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 Foundation,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
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#include "item_strfunc.h" // Item_str_func
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/* This file defines all XML functions */
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class Item_xml_str_func: public Item_str_func
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{
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protected:
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String tmp_value, pxml;
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Item *nodeset_func;
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String xpath_tmp_value;
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public:
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Item_xml_str_func(const POS &pos, Item *a, Item *b):
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Item_str_func(pos, a,b)
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{
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maybe_null= TRUE;
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}
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Item_xml_str_func(const POS &pos, Item *a, Item *b, Item *c):
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Item_str_func(pos, a,b,c)
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{
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maybe_null= TRUE;
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}
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void fix_length_and_dec();
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String *parse_xml(String *raw_xml, String *parsed_xml_buf);
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bool check_gcol_func_processor(uchar *int_arg) { return false; }
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protected:
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/**
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Parse the specified XPATH expression and initialize @c nodeset_func.
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@note This is normally called in resolve phase since we only support
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constant XPATH expressions, but it may be called upon execution when
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const value is not yet known at resolve time.
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@param xpath_expr XPATH expression to be parsed
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*/
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void parse_xpath(Item* xpath_expr);
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};
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class Item_func_xml_extractvalue: public Item_xml_str_func
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{
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public:
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Item_func_xml_extractvalue(const POS &pos, Item *a, Item *b)
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:Item_xml_str_func(pos, a, b)
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{}
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const char *func_name() const { return "extractvalue"; }
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String *val_str(String *);
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};
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class Item_func_xml_update: public Item_xml_str_func
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{
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String tmp_value2, tmp_value3;
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public:
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Item_func_xml_update(const POS &pos, Item *a, Item *b, Item *c)
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:Item_xml_str_func(pos, a, b, c)
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{}
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const char *func_name() const { return "updatexml"; }
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String *val_str(String *);
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bool check_gcol_func_processor(uchar *int_arg)
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{ return true; }
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};
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#endif /* ITEM_XMLFUNC_INCLUDED */
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