Обсуждение: Postgres' lexer

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Postgres' lexer

От
Leon
Дата:
Hi!

I'm currently fooling around with Postgres's parser, and I must admit
some things puzzle me completely. Please tell me what these things in
lexer stand for:

{operator}/-[\.0-9]    {                yylval.str = pstrdup((char*)yytext);                return Op;            }
Is it an operator followed by mandatory '-' and (dot or digit) ?

And what this stands for:

{identifier}/{space}*-{number}

What's the meaning of all these?

-- 
Leon.
---------
"This may seem a bit weird, but that's okay, because it is weird." -
Perl manpage.