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52 lines
1.0 KiB
C++
52 lines
1.0 KiB
C++
#ifndef DBMS_PARSERS_PARSERSELECTQUERY_H
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#define DBMS_PARSERS_PARSERSELECTQUERY_H
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#include <DB/Parsers/ASTSelectQuery.h>
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#include <DB/Parsers/IParserBase.h>
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#include <DB/Parsers/CommonParsers.h>
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#include <DB/Parsers/ExpressionListParsers.h>
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namespace DB
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{
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class ParserSelectQuery : public IParserBase
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{
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protected:
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String getName() { return "SELECT query"; }
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bool parseImpl(Pos & pos, Pos end, ASTPtr & node, String & expected)
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{
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Pos begin = pos;
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ASTPtr select_expression_list;
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ParserWhiteSpaceOrComments ws;
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ParserString s("SELECT");
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ParserNotWordCharOrEnd nw;
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ParserNotEmptyExpressionList exp_list;
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ws.ignore(pos, end);
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if (!(s.ignore(pos, end, expected)
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&& nw.check(pos, end, expected)))
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return false;
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ws.ignore(pos, end);
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if (!exp_list.parse(pos, end, select_expression_list, expected))
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return false;
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ASTSelectQuery * select_query = new ASTSelectQuery(StringRange(begin, pos));
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node = select_query;
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select_query->select = select_expression_list;
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return true;
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}
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};
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}
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#endif
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