Hardware::Vhdl::Lexer 1.00

Hardware::Vhdl::Lexer is a Perl module that can split VHDL code into lexical tokens. SYNOPSIS use Hardware::Vhdl::Lexer; # Open the file to get the VHDL code from my $fh; open $fh, <, device_behav.vhd || die $! # Create the Lexer object my $lexer = Hardware::Vhdl::Lexer->new({ linesource => $fh }); # Dump all the tokens my ($token, $type); while( (($token, $type) = $lexer->get_next_token) && defined $token) { print "# type = $type token=$tokenn"; } Hardware::Vhdl::Lexer splits VHDL code into lexical tokens. To use it, you need to first create a lexer object, passing in something which will supply chunks of VHDL code to the lexer. Repeated calls to the get_next_token method of the lexer will then return VHDL tokens (in scalar context) or a token type code and the token (in list context). get_next_token returns undef when there are no more tokens to be read. NB: in this documentation I refer to "lines" of VHDL code and "line" sources etc., but in fact the chunks of code dont have to be broken up at line-ends - they can be broken anywhere that isnt in the middle of a token. New-line characters just happen to be a simple and safe way to split up a file. You dont even have to split up the VHDL at all, you can pass in the whole thing as the first and only "line"..

Requirements:	No special requirements
Platforms:	Linux
Keyword:	Code,  Hardwarevhdllexer,  Lexical,  Libraries,  Perl Module,  Programming,  Split,  Token,  Tokens,  Type,  Vhdl Code
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