/* Copyright (C) 2003 MySQL AB 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; either version 2 of the License, or (at your option) any later version. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <common/common.hpp> #include <NdbMutex.h> #include <common/StmtArea.hpp> #include <FlexLexer.h> #include "SimpleParser.hpp" SimpleParser::~SimpleParser() { } #ifdef NDB_WIN32 static NdbMutex & parse_mutex = * NdbMutex_Create(); #else static NdbMutex parse_mutex = NDB_MUTEX_INITIALIZER; #endif void SimpleParser::yyparse() { Ctx& ctx = this->ctx(); NdbMutex_Lock(&parse_mutex); ctx_log2(("parse: %s", stmtArea().sqlText().c_str())); #if YYDEBUG SimpleParser_yydebug = (m_ctx.logLevel() >= 5); #endif SimpleParser_yyparse((void*)this); NdbMutex_Unlock(&parse_mutex); } void SimpleParser::pushState(int sc) { yy_push_state(sc); m_stacksize++; } void SimpleParser::popState() { ctx_assert(m_stacksize > 0); yy_pop_state(); m_stacksize--; } void SimpleParser::parseError(const char* msg) { ctx().pushStatus(Sqlstate::_42000, Error::Gen, "%s at '%*s' position %u", msg, yyleng, yytext, m_parsePos - yyleng); } int SimpleParser::LexerInput(char* buf, int max_size) { const BaseString& text = stmtArea().sqlText(); int n = 0; const char* const t = text.c_str(); const unsigned m = text.length(); while (n < max_size && m_textPos < m) { buf[n++] = t[m_textPos++]; m_parsePos++; // XXX simple hack break; } return n; } // XXX just a catch-all (scanner should match all input) void SimpleParser::LexerOutput(const char* buf, int size) { if (! ctx().ok()) return; const char* msg = "unrecognized input"; ctx().pushStatus(Sqlstate::_42000, Error::Gen, "%s at '%*s' position %u", msg, size, buf, m_parsePos); } void SimpleParser::LexerError(const char* msg) { ctx().pushStatus(Sqlstate::_42000, Error::Gen, "%s at '%*s' position %u", msg, yyleng, yytext, m_parsePos); }