The validate module

validate_language(lang)

Validate all lexicons in this language.

Errors and warnings are printed to stdout. If there are errors, this function returns False, otherwise True.

class LexiconValidator(lexicon)

Bases: object

error(msg, lexicon=None)

Add message to errors.

warning(msg, lexicon=None)

Add message to warnings.

validate()

Validate a lexicon.

Errors and warnings are left in the errors and warnings attributes, respectively.

validate_pattern(pattern, n)

Validate a regular expression pattern.

validate_rule(rule, n)

Validate a rule, which should be action, target[, target, …].

Does not look at the action, but checks whether all the targets are valid (either an integer or a Lexicon).

check_default_target(target)

Check whether this default target could lead to circular references.

This could hang the parser, and we wouldn’t like to have that :-)