Parsnip::RegExEvaluator Class Reference

Evaluate a string value field. More...

#include <parsnip_evaluate.h>

Inheritance diagram for Parsnip::RegExEvaluator:

Collaboration diagram for Parsnip::RegExEvaluator:

Public Member Functions
virtual Parsnip::Data	evaluateToken (ArgvCursor *cursor) const override
virtual bool	operator== (const Evaluator &other) const override
	Check if two evaluators are the same. More...
virtual SchemaBase *	getSchema () const override final
Public Member Functions inherited from Parsnip::ValueEvaluator
virtual void	convertToOptionEvaluator () override
	Make any changes to the parse tree to convert it to an options evaluator. More...
virtual void	constructSchema (const DictionarySchema &scheme, const Schema::OptionSchemas &option_schemas, const SchemaIntegratorCallback &integrator) const override
	Construct a schema from an evaluator tree. More...
	Evaluator ()=default
	Evaluator (Evaluator *original)
	Upgrade an evaluator. More...
Public Member Functions inherited from Parsnip::Evaluator
	Evaluator (Evaluator *original)
	Upgrade an evaluator. More...
virtual	~Evaluator ()=default
int	evaluate (ArgvCursor *cursor, Parsnip::Data &result_dict)
	Evaluate a token in the command line, and recurse if there is more to go. More...
bool	operator!= (const Evaluator &other) const

Static Public Member Functions
static RegExEvaluator *	construct (EvaluatorRef &evaluator, const std::string &name, const StringType &expression, const bool case_blind)
	Construct an evaluator (or validate the existing validator) for accepting an integer with a limited range. More...
Static Public Member Functions inherited from Parsnip::ValueEvaluator
static void	construct (EvaluatorRef &parser, const ArgvCursor &cursor, CommandId id, Parser *parent_parser, std::string name, std::string keywords)
	Construct a value/fill-in token handler. More...
Static Public Member Functions inherited from Parsnip::Evaluator
static void	construct (EvaluatorRef &evaluator, const ArgvCursor &cursor, CommandId id, Parser *parent_parser)
	Construct token handler from the token in a parsing definition. More...

Private Types
using	RegexType = std::basic_regex< StringType::value_type >

Private Attributes
StringType	expression
	The string defining the regular expression. More...
RegexType	regex
	The compiled regular expression. More...

Additional Inherited Members
Public Types inherited from Parsnip::Evaluator
using	StringType = std::string
using	CommandId = int
Protected Member Functions inherited from Parsnip::ValueEvaluator
virtual Evaluator *	getNextEvaluator (const StringType &value) const override
	Determine if and how to evaluate additional command line tokens. More...
Protected Member Functions inherited from Parsnip::Evaluator
	Evaluator ()=default
void	setCommandId (CommandId id)
	Set the command ID in an evaluator. More...
Static Protected Member Functions inherited from Parsnip::Evaluator
static void	set_name (EvaluatorRef &target, const std::string &name)
	Assign a name by which to store values for value evaluators. More...
Protected Attributes inherited from Parsnip::ValueEvaluator
EvaluatorRef	next_evaluator
Protected Attributes inherited from Parsnip::Evaluator
CommandId	command_id {NoCommand}
	If this completes a command, the command ID. More...
std::string	name
	If not empty, the name by which this value shall be accessed. More...

Detailed Description

Evaluate a string value field.

Member Typedef Documentation

RegexType

using Parsnip::RegExEvaluator::RegexType = std::basic_regex <StringType::value_type>

private

Member Function Documentation

construct()

RegExEvaluator * Parsnip::RegExEvaluator::construct ( EvaluatorRef &  evaluator, const std::string &  name, const StringType &  expression, const bool  case_blind  )

static

Construct an evaluator (or validate the existing validator) for accepting an integer with a limited range.

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evaluateToken()

Parsnip::Data Parsnip::RegExEvaluator::evaluateToken ( ArgvCursor *  cursor ) const

overridevirtual

Returns

the current token as string data, after validating it against a regular expression.

Reimplemented from Parsnip::StringEvaluator.

getSchema()

SchemaBase * Parsnip::RegExEvaluator::getSchema ( ) const

finaloverridevirtual

Reimplemented from Parsnip::StringEvaluator.

operator==()

bool Parsnip::RegExEvaluator::operator== ( const Evaluator &  other ) const

overridevirtual

Check if two evaluators are the same.

Subclasses should override this to check their details.

Parameters

other

Another evaluator to which to compare.

Reimplemented from Parsnip::ValueEvaluator.

Member Data Documentation

expression

StringType Parsnip::RegExEvaluator::expression

private

The string defining the regular expression.

regex

RegexType Parsnip::RegExEvaluator::regex

private

The compiled regular expression.

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

• parsnip/parsnip_evaluate.h
• parsnip/parsnip_evaluate.cpp