loos::internal::extractNumber Class Reference

Extracts a number for a string on the stack using a regular expression: ARG1 regexp(S) More...

#include <KernelActions.hpp>

Inheritance diagram for loos::internal::extractNumber:

Collaboration diagram for loos::internal::extractNumber:

Public Member Functions
	extractNumber (const std::string s)
void	execute (void)
std::string	name (void) const
Public Member Functions inherited from loos::internal::Action
	Action (const std::string s)
void	setStack (ValueStack *)
void	setAtom (pAtom &)

Additional Inherited Members
Protected Member Functions inherited from loos::internal::Action
int	binComp (void)
	Compare the top two items on the stack...
bool	negativeOperand (void)
void	binaryFalseResult (void)
void	requireAtom (void)
	Check to make sure an atom has been set...
Protected Attributes inherited from loos::internal::Action
ValueStack *	stack
	Pointer to the data stack.
pAtom	atom
	Pointer to the atom we'll be working on...
std::string	my_name
	Record of command-name (for printing)

Detailed Description

Extracts a number for a string on the stack using a regular expression: ARG1 regexp(S)

Compiles the passed string into a regex pattern at instantiation. At execution, examines each matched capture for the first one that converts to an integer and pushes that value onto the data stack. If no match is found (or no numeric conversion works), then "-1" is pushed onto the stack.

Member Function Documentation

execute()

void loos::internal::extractNumber::execute ( void )

virtual

Implements loos::internal::Action.

name()

std::string loos::internal::extractNumber::name ( void ) const

virtual

Reimplemented from loos::internal::Action.

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

• src/KernelActions.hpp
• src/KernelActions.cpp