crp::Parser Class Reference

Class Parser implements the parser of ContRap commands. More...

#include <parser.h>

Public Types
enum	Qualifier { NORMAL = 0, EXPLICIT = 1, REQUIRED = 2 }
	Enumerates qualifiers. More...
Public Member Functions
	Parser (Engine *engine)
	Creates a new parser.
	~Parser ()
	Releases the memory.
DPtr	parse (const std::string &command)
	Parses a command string and returns the parse tree of the whole statement in the string.
DPtr	parse_file (const std::string &file_name)
	Parses a series of commands from a file.
bool	is_operator (const std::string &name)
	Returns a non zero pointer if the operator with the given name exists.
void	register_operator (const std::string &name, int precedence, Operator::Notation notation=Operator::PREFIX)
	Registers a new operator.
int	get_precedence (const std::string &name)
	Returns the precedence of an operator.
Protected Member Functions
DPtr	parse (StringTokenizer &tokenizer)
	Parser methods.
DPtr	parse_sequence (StringTokenizer &tokenizer)
DPtr	parse_statement (StringTokenizer &tokenizer)
DPtr	parse_command (StringTokenizer &tokenizer)
void	parse_extends (StringTokenizer &tokenizer, SPtr< Statement > &term)
DPtr	parse_select (StringTokenizer &tokenizer, const DPtr &term)
DPtr	parse_block (StringTokenizer &tokenizer)
DPtr	parse_for (StringTokenizer &tokenizer)
DPtr	parse_if (StringTokenizer &tokenizer)
DPtr	parse_while (StringTokenizer &tokenizer)
DPtr	parse_expression (StringTokenizer &tokenizer, const Operator &previous)
DPtr	parse_func_term (StringTokenizer &tokenizer, const Operator &previous)
DPtr	parse_term (StringTokenizer &tokenizer)
DPtr	parse_function (StringTokenizer &tokenizer)
DPtr	parse_class (StringTokenizer &tokenizer)
DPtr	parse_assignment (StringTokenizer &tokenizer)
std::string	parse_type (StringTokenizer &tokenizer)
std::string	parse_type_rec (StringTokenizer &tokenizer)
std::string	parse_opname (StringTokenizer &tokenizer)
void	parse_func_arguments (StringTokenizer &tokenizer, SPtr< List > list, std::map< std::string, DPtr > &options)
void	parse_arguments (StringTokenizer &tokenizer, SPtr< List > list)
DPtr	parse_list (StringTokenizer &tokenizer)
void	parse_index (StringTokenizer &tokenizer, SPtr< List > arguments)
void	error (StringTokenizer &tokenizer, const std::string &message)
bool	is_name (const std::string &name)
bool	is_number (const std::string &name)
bool	is_terminal (const std::string &name)
bool	is_keyword (const std::string &name)
void	check_eof (StringTokenizer &tokenizer)
Protected Attributes
std::map< std::string, Operator >	operators
	Operator types.
std::map< std::string, bool >	operator_names
	Names of registred operators.
Operator	null_operator
	Predefined operator.
Operator	max_operator
Engine *	engine
	Current engine.
SPtr< bool >	True
	Boolean constants.
SPtr< bool >	False

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Detailed Description

Class Parser implements the parser of ContRap commands.

The Parser can partially parse C/C++ types. For this it uses the ObjectFactory instance to determine which objects are C/C++ types.

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Member Enumeration Documentation

enum crp::Parser::Qualifier

Enumerates qualifiers.

Enumerator:

NORMAL
EXPLICIT
REQUIRED

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Constructor & Destructor Documentation

crp::Parser::Parser

(

Engine *

engine

)

Creates a new parser.

The parser uses the interpreter to evaluate at parse time the values of numerical constants.

Parameters:

engine

Current engine

crp::Parser::~Parser

(

)

Releases the memory.

---

Member Function Documentation

void crp::Parser::check_eof

(

StringTokenizer &

tokenizer

)

[protected]

void crp::Parser::error	(	StringTokenizer &	tokenizer,
		const std::string &	message
	)		[protected]

int crp::Parser::get_precedence

(

const std::string &

name

)

Returns the precedence of an operator.

Parameters:

name	Name of the operator

Returns:

Precedence of the operator

bool crp::Parser::is_keyword

(

const std::string &

name

)

[protected]

bool crp::Parser::is_name

(

const std::string &

name

)

[protected]

bool crp::Parser::is_number

(

const std::string &

name

)

[protected]

bool crp::Parser::is_operator

(

const std::string &

name

)

Returns a non zero pointer if the operator with the given name exists.

Parameters:

name	Name of the operator

Returns:

True if the name is a registred operator

bool crp::Parser::is_terminal

(

const std::string &

name

)

[protected]

DPtr crp::Parser::parse

(

StringTokenizer &

tokenizer

)

[protected]

Parser methods.

DPtr crp::Parser::parse

(

const std::string &

command

)

Parses a command string and returns the parse tree of the whole statement in the string.

Parameters:

command

Command string

Returns:

Parse tree of the string

void crp::Parser::parse_arguments	(	StringTokenizer &	tokenizer,
		SPtr< List >	list
	)		[protected]

DPtr crp::Parser::parse_assignment

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_block

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_class

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_command

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_expression	(	StringTokenizer &	tokenizer,
		const Operator &	previous
	)		[protected]

void crp::Parser::parse_extends	(	StringTokenizer &	tokenizer,
		SPtr< Statement > &	term
	)		[protected]

DPtr crp::Parser::parse_file

(

const std::string &

file_name

)

Parses a series of commands from a file.

Parameters:

file_name

Name of the file

Returns:

Resulting code

DPtr crp::Parser::parse_for

(

StringTokenizer &

tokenizer

)

[protected]

void crp::Parser::parse_func_arguments	(	StringTokenizer &	tokenizer,
		SPtr< List >	list,
		std::map< std::string, DPtr > &	options
	)		[protected]

DPtr crp::Parser::parse_func_term	(	StringTokenizer &	tokenizer,
		const Operator &	previous
	)		[protected]

DPtr crp::Parser::parse_function

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_if

(

StringTokenizer &

tokenizer

)

[protected]

void crp::Parser::parse_index	(	StringTokenizer &	tokenizer,
		SPtr< List >	arguments
	)		[protected]

DPtr crp::Parser::parse_list

(

StringTokenizer &

tokenizer

)

[protected]

std::string crp::Parser::parse_opname

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_select	(	StringTokenizer &	tokenizer,
		const DPtr &	term
	)		[protected]

DPtr crp::Parser::parse_sequence

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_statement

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_term

(

StringTokenizer &

tokenizer

)

[protected]

std::string crp::Parser::parse_type

(

StringTokenizer &

tokenizer

)

[protected]

std::string crp::Parser::parse_type_rec

(

StringTokenizer &

tokenizer

)

[protected]

DPtr crp::Parser::parse_while

(

StringTokenizer &

tokenizer

)

[protected]

void crp::Parser::register_operator	(	const std::string &	name,
		int	precedence,
		Operator::Notation	notation = Operator::PREFIX
	)

Registers a new operator.

Parameters:

name	Name of the operator
precedence	Precedence of the operator
notation	Notation

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Field Documentation

Engine* crp::Parser::engine [protected]

Current engine.

SPtr<bool> crp::Parser::False [protected]

Operator crp::Parser::max_operator [protected]

Operator crp::Parser::null_operator [protected]

Predefined operator.

std::map<std::string, bool> crp::Parser::operator_names [protected]

Names of registred operators.

std::map<std::string, Operator> crp::Parser::operators [protected]

Operator types.

SPtr<bool> crp::Parser::True [protected]

Boolean constants.

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The documentation for this class was generated from the following file:

• parser.h