namespace identifier encloses free functions associated with identifiers More...

Functions
bool	is_start_char (char ch)
	Say whether a character can be the first of an identifier.

bool	is_valid_char (char ch)
	Say whether a character can occur in an identifier.

template<class CharSeq >
size_t	find_first_in (std::string const &id, chewer< CharSeq > &chew)
	Find the first occurrence of an identifier within a terminal segment a `CharSeq` More...

template<class CharSeq >
std::string	find_any_in (chewer< CharSeq > &chew, size_t &off)
	Search a terminal portion of a `CharSeq` for any identifier. More...

template<class CharSeq >
std::string	read (chewer< CharSeq > &chew)
	Read an identifier from an `chewer<CharSeq>` More...

Detailed Description

namespace identifier encloses free functions associated with identifiers

Function Documentation

template<class CharSeq >

std::string identifier::find_any_in	(	chewer< CharSeq > &	chew,
		size_t &	off
	)

Search a terminal portion of a CharSeq for any identifier.

Search a terminal portion of a CharSeq to find the first syntactic occurrence of an identifier (parsed greedily)

Template Parameters

CharSeq A character-sequence type

Parameters

chew	On entry, a `chewer<CharSeq>` positioned at the offset in the associated `CharSeq` from which to scan. On return `chew` is positioned just passed the first syntactic occurrence found of identifier`, or at the end of the` CharSeq` if none.
off	On return, receives the offset in the `CharSeq` of the first identifier detected, if any, else is unchanged.

template<class CharSeq >

size_t identifier::find_first_in	(	std::string const &	id,
		chewer< CharSeq > &	chew
	)

Find the first occurrence of an identifier within a terminal segment a CharSeq

Template Parameters

CharSeq A character-sequence type

Parameters

id	The identifier to be searched for.
chew	On entry, a `chewer<CharSeq>` positioned at the offset in the associated `CharSeq` from which to scan. On return `chew` is positioned just passed the first occurrence found of `id`, or at the end of the `CharSeq` if none.

Returns: The offset in the CharSeq of the first occurrence found of id, if any, else string::npos

template<class CharSeq >

std::string identifier::read ( chewer< CharSeq > & chew )

Read an identifier from an chewer<CharSeq>

Template Parameters

CharSeq A charcter-sequence type

Parameters

chew	On entry, a `chewer<CharSeq>` positioned at the offset in the associated `CharSeq` from which to scan for an identifier. On return `chew` is positioned at the first offset not consumed.