[antlr-interest] How to intervene automatic keywords generation
yhhf_dy at yahoo.com
Wed Oct 16 14:16:57 PDT 2002
According to the manual of ANTLR about Keywords and literals: any
double-quoted string used in a parser is automatically entered into
the literals table of the associated lexer. For instance,
: "on" "error" "goto" label)
So "on", "error" and "goto" will be automatically putted into the
literals table. But in my target language "error" is not a keyword.
so "error" can be an "identifier" in a statement as following pseudo
code line shows.
In fact, this line will cause a problem. because the parser will look
for the identifier -"error" in the literals table first, then
treat "error" as keyword not an general identifier.
: ('a'..'z'|'_') ('a'..'z'|'_'|'0'..'9')*
My question is that may I determine which one ,double-quoted strings,
can be entered into literals table instead of automatically
generatation. Or there is an alternative way to deal with this kind
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