Re: about lr(1) parsers

[Hans Aberg]

On 3 Jul 2006, at 10:43, chinlu chinawa wrote:

> What I'm looking for is a parser, or as I understand
> it, a way in which I can define new keywords whilst
> being able to process them as well as any arguments it
> may take.

Keywords, or hardwired names, are normally added in the lexer, which  
may be generated by Flex. If you want to have constructs such as  
'define <name>...', one way to do it is to make a lookup table, where  
<name> is entered along with syntactic and semantic data. When the  
lexer finds a name, it checks the lookup table, and if found, returns  
the correct token and passes the semantic data to the parser.

  Hans Aberg