GeezerVison is showing github.com — sqlitebrowser/src/sql/parser/ParserDriver.h at continuous · sqlitebrowser/sqlitebrowser

Expand file tree

ParserDriver.h

Copy path

More file actions

Latest commit

History

65 lines (48 loc) · 1.54 KB

ParserDriver.h

Copy path

File metadata and controls

65 lines (48 loc) · 1.54 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

#ifndef PARSER_DRIVER_H

#define PARSER_DRIVER_H

#include <string>

#include "sqlite3_parser.hpp"

#include "../sqlitetypes.h"

// Give Flex the prototype of yylex we want and declare it for the parser

typedef void* yyscan_t;

namespace sqlb { namespace parser { class ParserDriver; } }

#define YY_DECL sqlb::parser::parser::symbol_type yylex(yyscan_t yyscanner, sqlb::parser::ParserDriver& drv)

YY_DECL;

namespace sqlb

{

namespace parser

{

class ParserDriver

{

friend parser;

public:

ParserDriver();

void setScannerDebug(bool on) { trace_scanner = on; }

void setParserDebug(bool on) { trace_parser = on; }

// Run the parser on string s. Returns 0 on success

int parse(const std::string& s);

// Result returned by the parsing process

sqlb::ObjectPtr result;

// The token's location used by the scanner

sqlb::parser::location location;

private:

// The string to be parsed

std::string source;

// Handling the scanner

void begin_scan();

void end_scan();

// Debug flags for both scanner and parser

bool trace_scanner;

bool trace_parser;

// Scanner state

yyscan_t scanner;

// Scanner buffer

typedef struct yy_buffer_state* YY_BUFFER_STATE;

YY_BUFFER_STATE buffer;

// This is a purely internal variable used for parsing CREATE TABLE statements. It stores a pointer to the table column which

// is currently being parsed. This allows us to modify the column and add additional constraints when we see them.

std::shared_ptr<sqlb::Field> last_table_column;

};

}

#endif