xtd::parse Namespace Reference

Grammar and AST declarations. More...

Data Structures
class	and_
	Represents a parse algorithm where all specified elements parse are contiguously present in the input stream All the terminals and rules listed in the parameter pack must parse successfully to satisfy the parse rule. More...
class	character
	Character terminal parsing algorithm. More...
class	one_or_more_
	Represents a parse algorithm where where the terminal or rule is repeated one or more times in the input stream The specified item must parse successfully at least once to satisfy the parse rule. More...
class	or_
	Represents a parse algorithm where one of the listed elements is present in the input stream One of the terminals or rules listed in the parameter pack must parse successfully to satisfy the parse rule. More...
class	regex
	regular expression parsing algorithm. More...
class	rule
	Curiously recurring template pattern to simplify creation of rule_base implementations Rules and terminals implement the rule_base interface through this pattern. More...
class	rule_base
	Base class of both rules and terminals Though rules and terminals are technically different they share the rule_base ancestor in XTL to have a cleaner object model and simpler parsing algorithms. More...
class	string
	String terminal parsing algorithm. More...
class	whitespace
	list of whitespace characters to ignore in the input stream. More...
class	zero_or_more_
	Represents a parse algorithm where the terminal or rule repeats zero or more times in the input stream Always successfully parses whether or not the element parses. More...
class	zero_or_one_
	Represents a parse algorithm where the terminal or rule repeats exactly zero or one time in the input stream Always successfully parses whether or not the element parses. More...

Detailed Description

Grammar and AST declarations.

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Data Structure Documentation

class xtd::parse::and_

template<typename...>
class xtd::parse::and_<>

Represents a parse algorithm where all specified elements parse are contiguously present in the input stream All the terminals and rules listed in the parameter pack must parse successfully to satisfy the parse rule.

Template Parameters

...	list of child rules and terminals to parse

Examples:

example_parse1.cpp, and example_parse2.cpp.

Definition at line 131 of file parse.hpp.

Collaboration diagram for xtd::parse::and_<>:

class xtd::parse::or_

template<typename...>
class xtd::parse::or_<>

Represents a parse algorithm where one of the listed elements is present in the input stream One of the terminals or rules listed in the parameter pack must parse successfully to satisfy the parse rule.

Template Parameters

...	list of child rules and terminals to parse

Examples:

example_parse1.cpp, and example_parse2.cpp.

Definition at line 153 of file parse.hpp.

Collaboration diagram for xtd::parse::or_<>:

class xtd::parse::regex

template<typename _Ty, _Ty &>
class xtd::parse::regex< _Ty, >

regular expression parsing algorithm.

This template is infrequently used directly. The REGEX macro is provided to declare a regular expression terminal.

Definition at line 243 of file parse.hpp.

Collaboration diagram for xtd::parse::regex< _Ty, >:

class xtd::parse::string

template<typename _Ty, _Ty &>
class xtd::parse::string< _Ty, >

String terminal parsing algorithm.

This template is infrequently used directly. The STRING and STRING_ macros are provided to declare string terminals.

Definition at line 224 of file parse.hpp.

Collaboration diagram for xtd::parse::string< _Ty, >:

class xtd::parse::whitespace

template<char... _Ch>
class xtd::parse::whitespace< _Ch >

list of whitespace characters to ignore in the input stream.

Whitespace characters are parsed and discarded from the input stream when encountered between rules or terminals. A typical whitespace declaration for written language might be: whitespace<'\r', '\n', '\t', ' '>;

Template Parameters

_Ch...

list of characters to ignore.

Definition at line 215 of file parse.hpp.

Collaboration diagram for xtd::parse::whitespace< _Ch >:

Data Fields
	whitespace_type