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• Parser

Parse-utils

Supporting functions for the parser.

Subtopics

Defparser

Core macro for writing recursive-descent parsers, used throughout VL's parsing routines.

Vl-endinfo-p

Temporary structure created to parse named endings like endmodule : foo.

Vl-match-token

Compatible with seq. Consume and return a token of exactly some particular type, or cause an error if the desired kind of token is not at the start of the input stream.

Vl-match-some-token

Compatible with seq. Consume and return a token if it has one of several types. Cause an error if the first token isn't one of the acceptable types.

Vl-match-any-except

Compatible with seq. Match any token that is not of the listed types. Causes an error on EOF.

Vl-type-of-matched-token

Reasoning trick. Alias for the type of the token returned by vl-match-some-token.

Vl-maybe-match-token

Compatible with seq. Consume and return a token if it is of the given type, but if not, don't consume anything and return nil.

Vl-tokstream-backup-p

Vl-parse-error

Compatible with seq. Produce an error message (stopping execution) that includes the current location.

Vl-match

Compatible with seq. Get the first token, no matter what kind of token it is. Only usable when you know there is a token there (via the guard).

Vl-parse-warning

Compatible with seq. Produce a non-fatal warning (not an error, doesn't stop execution) that includes the current location.

Vl-match-any

Compatible with seq. Get the first token, no matter what kind of token it is. Causes an error on EOF.

Vl-current-loc

Compatible with seq. Get the current location.

Vl-parse-endblock-name

Vl-tokenlist-fix

Vl-lookahead-is-some-token?

Check whether the current token is one of some particular types.

Vl-is-some-token?

Check whether the current token is one of some particular types.

Vl-is-token?

Check whether the current token has a particular type.

Vl-tokstream-save

Vl-tokstream-restore

Vl-tokstream-fix

Vl-lookahead-is-token?

Check whether the current token has a particular type.

Vl-tokstream->tokens

Vl-tokstream-add-warning

Vl-tokstream->pstate

Expand-defparsers

*vl-default-token*