RTT::scripting::ExpressionParser Class Reference

#include <ExpressionParser.hpp>

Public Member Functions
void	dropResult ()
	ExpressionParser (TaskContext pc, ExecutionEngine caller, CommonParser &common_parser)
boost::shared_ptr < base::AttributeBase >	getHandle ()
base::DataSourceBase::shared_ptr	getResult ()
bool	hasResult ()
rule_t &	parser ()
	~ExpressionParser ()
Private Member Functions
void	inverttime ()
void	seen_assign ()
void	seen_binary (const std::string &op)
void	seen_dotmember (iter_t begin, iter_t end)
void	seen_index ()
void	seen_unary (const std::string &op)
void	seenconstructor ()
void	seendatacall ()
void	seentimeexpr ()
void	seentimespec (int n)
void	seentimeunit (iter_t begin, iter_t end)
void	seenvalue ()
Private Attributes
bool	_invert_time
rule_t	andexp
rule_t	assignexp
rule_t	atomicexpression
rule_t	call_expression
rule_t	close_brace
rule_t	comma
CommonParser &	commonparser
ConstructorParser	constrparser
rule_t	constructor_expression
TaskContext *	context
DataCallParser	datacallparser
rule_t	div_or_mul
rule_t	dotexp
rule_t	equalexp
rule_t	expression
rule_t	greatereqexp
rule_t	greaterexp
rule_t	groupexp
rule_t	ifthenelseexp
rule_t	indexexp
boost::shared_ptr < base::AttributeBase >	mhandle
std::string	mobjectname
rule_t	modexp
std::string	mpropname
rule_t	notequalexp
types::OperatorRepository::shared_ptr	opreg
rule_t	orexp
std::stack < base::DataSourceBase::shared_ptr >	parsestack
rule_t	plus_or_min
rule_t	smallereqexp
rule_t	smallerexp
rule_t	time_expression
rule_t	time_spec
nsecs	tsecs
rule_t	unaryminusexp
rule_t	unarynotexp
rule_t	unaryplusexp
rule_t	value_expression
ValueParser	valueparser

Detailed Description

How we parse: this parser works like a stack-based RPN calculator. An atomic expression pushes one internal::DataSource up the stack, a binary expression pops two DataSources, and pushes a new one, a unary pops one, and pushes one etc. This allows for the reentrancy we need..

Definition at line 140 of file ExpressionParser.hpp.

Constructor & Destructor Documentation

RTT::ExpressionParser::ExpressionParser	(	TaskContext *	pc,
		ExecutionEngine *	caller,
		CommonParser &	cp
	)

Definition at line 323 of file ExpressionParser.cpp.

RTT::ExpressionParser::~ExpressionParser ( )

Definition at line 560 of file ExpressionParser.cpp.

Member Function Documentation

void RTT::ExpressionParser::dropResult ( )

Definition at line 688 of file ExpressionParser.cpp.

boost::shared_ptr< AttributeBase > RTT::ExpressionParser::getHandle ( )

In case the parsed result returns a SendHandle, ask the parser to also create a handle for it.

Returns:: null pointer if no handle could be made.

Definition at line 579 of file ExpressionParser.cpp.

DataSourceBase::shared_ptr RTT::ExpressionParser::getResult ( )

Definition at line 573 of file ExpressionParser.cpp.

bool RTT::scripting::ExpressionParser::hasResult ( ) [inline]

Definition at line 218 of file ExpressionParser.hpp.

void RTT::ExpressionParser::inverttime ( ) [private]

Definition at line 488 of file ExpressionParser.cpp.

rule_t & RTT::ExpressionParser::parser ( )

Definition at line 568 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seen_assign ( ) [private]

Definition at line 627 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seen_binary ( const std::string & op ) [private]

Definition at line 610 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seen_dotmember	(	iter_t	begin,
		iter_t	end
	)			`[private]`

Definition at line 597 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seen_index ( ) [private]

Definition at line 672 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seen_unary ( const std::string & op ) [private]

Definition at line 585 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seenconstructor ( ) [private]

Definition at line 554 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seendatacall ( ) [private]

Definition at line 547 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seentimeexpr ( ) [private]

Definition at line 493 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seentimespec ( int n ) [private]

Definition at line 536 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seentimeunit	(	iter_t	begin,
		iter_t	end
	)			`[private]`

Definition at line 507 of file ExpressionParser.cpp.

void RTT::ExpressionParser::seenvalue ( ) [private]

Definition at line 541 of file ExpressionParser.cpp.

Member Data Documentation

bool RTT::scripting::ExpressionParser::_invert_time [private]

Definition at line 193 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::andexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::assignexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::atomicexpression [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::call_expression [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::close_brace [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::comma [private]

Definition at line 142 of file ExpressionParser.hpp.

CommonParser& RTT::scripting::ExpressionParser::commonparser [private]

The governing common parser.

Definition at line 191 of file ExpressionParser.hpp.

ConstructorParser RTT::scripting::ExpressionParser::constrparser [private]

Definition at line 187 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::constructor_expression [private]

Definition at line 142 of file ExpressionParser.hpp.

TaskContext* RTT::scripting::ExpressionParser::context [private]

Definition at line 196 of file ExpressionParser.hpp.

DataCallParser RTT::scripting::ExpressionParser::datacallparser [private]

Definition at line 186 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::div_or_mul [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::dotexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::equalexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::expression [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::greatereqexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::greaterexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::groupexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::ifthenelseexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::indexexp [private]

Definition at line 142 of file ExpressionParser.hpp.

boost::shared_ptr<base::AttributeBase> RTT::scripting::ExpressionParser::mhandle [private]

Contains the last SendHandle encountered, Will also be dropped by dropResult().

Definition at line 160 of file ExpressionParser.hpp.

std::string RTT::scripting::ExpressionParser::mobjectname [private]

Definition at line 164 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::modexp [private]

Definition at line 142 of file ExpressionParser.hpp.

std::string RTT::scripting::ExpressionParser::mpropname [private]

Definition at line 168 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::notequalexp [private]

Definition at line 142 of file ExpressionParser.hpp.

types::OperatorRepository::shared_ptr RTT::scripting::ExpressionParser::opreg [private]

Definition at line 194 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::orexp [private]

Definition at line 142 of file ExpressionParser.hpp.

std::stack<base::DataSourceBase::shared_ptr> RTT::scripting::ExpressionParser::parsestack [private]

The parse stack.. see the comment for this class ( scroll up ;) ) for info on the general idea. We keep a reference to the DataSources in here, while they're in here..

Definition at line 155 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::plus_or_min [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::smallereqexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::smallerexp [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::time_expression [private]

Definition at line 142 of file ExpressionParser.hpp.

rule_t RTT::scripting::ExpressionParser::time_spec [private]

Definition at line 142 of file ExpressionParser.hpp.

nsecs RTT::scripting::ExpressionParser::tsecs [private]