Hi,
Dominique had the idea to check dates to make sure the day of the week
is plausible:
https://github.com/languagetool-org/languagetool/issues/116
Here's an idea how this could be implemented: extend the rule syntax
with a "modify" element that specifies a Java class. This class needs to
implement a simple interface. The method in the Java class will only be
called if the rule matches. The method is called with the matching
sentence, the match position, the RuleMatch objects, and optionally
other parameters. It can then remove rule matches, add matches, or
modify them. The pattern for checking a date could look like this:
<pattern>
<token
regexp="yes">Saturday|Sunday|Monday|Tuesday|Wednesday|Thursday|Friday</token>
<token>,</token>
<token regexp="yes">\d+{4}-\d+{2}-\d+{2}</token>
</pattern>
<modify
class="org.languagetool.rules.patterns.modifier.DateAndDayOfWeek" />
<message>Date and day of week do not match</message>
<example type="incorrect">On <marker>Saturday</marker>,
2014-06-08</example>
<example type="correct">On <marker>Sunday</marker>, 2014-06-08</example>
The Java rule would then need to parse the date (yes, that's some amount
of duplication) and keep the rule match only if the day of week doesn't
match the date.
What I like about this approach is that it might me used to extend rules
without the need to touch the rule syntax. It is not meant to become a
common case, however, standard rule matching should still be enough for
>95% of all cases.
What do you think?
Regards
Daniel
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