argo::lexer Class Reference

A lexical analyser for JSON messages. More...

#include <lexer.hpp>

Public Member Functions
	lexer (reader &r, size_t max_token_length)
virtual	~lexer ()
const token &	next ()
void	put_back_last ()

Detailed Description

A lexical analyser for JSON messages.

A lexical analyser for JSON messages. Lexemes are generated from source that matches the RFC but note that doesn't mean those lexemes can always be represented as basic C++ types.

Definition at line 41 of file lexer.hpp.

Constructor & Destructor Documentation

lexer::lexer	(	reader &	r,
		size_t	max_token_length
	)

New lexer that will read tokens of up to the maximum specified length from the supplied reader.

Definition at line 32 of file lexer.cpp.

lexer::~lexer ( )

virtual

Destructor.

Definition at line 40 of file lexer.cpp.

Member Function Documentation

const token & lexer::next

(

)

Read the next token.

Exceptions

json_parser_exception	if a syntax error is encountered or if the token length exceeds the maximum.
json_io_exception	in the event of a IO error error of some type when reading the message.

Definition at line 340 of file lexer.cpp.

void lexer::put_back_last

(

)

Put back the last token that was read such that a subsequent call to next() will return that token rather than attempting to read a new one from the input.

Definition at line 354 of file lexer.cpp.

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

• lexer.hpp
• lexer.cpp