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#include "SQLParser.h"

#include "parser/bison_parser.h"

#include "parser/flex_lexer.h"

#include <stdio.h>

#include <string>

namespace hsql {

SQLParser::SQLParser() {

fprintf(stderr, "SQLParser only has static methods atm! Do not initialize!\n");

}

SQLParserResult* SQLParser::parseSQLString(const char* text) {

SQLParserResult* result = NULL;

yyscan_t scanner;

YY_BUFFER_STATE state;

if (hsql_lex_init(&scanner)) {

// Couldn't initialize the lexer.

fprintf(stderr, "[Error] SQLParser: Error when initializing lexer!\n");

return NULL;

}

state = hsql__scan_string(text, scanner);

// Parser and return early if it failed.

if (hsql_parse(&result, scanner)) {

// Returns an error stmt object.

hsql__delete_buffer(state, scanner);

hsql_lex_destroy(scanner);

return result;

}

hsql__delete_buffer(state, scanner);

hsql_lex_destroy(scanner);

return result;

}

SQLParserResult* SQLParser::parseSQLString(const std::string& text) {

return parseSQLString(text.c_str());

}

} // namespace hsql