Package org.languagetool.rules.de

Class VerbAgreementRule

java.lang.Object

org.languagetool.rules.Rule

org.languagetool.rules.TextLevelRule

org.languagetool.rules.de.VerbAgreementRule

public class VerbAgreementRule
extends TextLevelRule

Simple agreement checker for German verbs and subject. Checks agreement in:

• VER:1:SIN w/o ich: e.g. "Max bin da." (incorrect) [same for VER:2:SIN w/o du, VER:1:PLU w/o wir]
• ich + VER:[123]:.* (not VER:1:SIN): e.g. "ich bist" (incorrect) [same for du, er, wir]

TODO:

• wenn nur ein mögliches finites Verb -> das nehmen (Max machen das.)
• Sie (i>1)
• bei ich/du/er/wir sofort prüfen, damit alle vorkommen geprüft werden (Ich geht jetzt nach Hause und dort gehe ich sofort unter die Dusche.) [aber: isNear]
• Alle Verbvorkommen merken (Er präsentieren wollte und Video hätte keine Pläne.)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	VerbAgreementRule.BooleanAndFiniteVerb

Field Summary

Fields

Modifier and Type	Field	Description
private static final List<List<PatternToken>>	ANTI_PATTERNS
private final Supplier<List<DisambiguationPatternRule>>	antiPatterns
private static final Set<String>	BIN_IGNORE
private static final Pattern	COMMA
private static final Set<String>	CONJUNCTIONS
private final German	language
private static final Set<String>	QUOTATION_MARKS

Fields inherited from class org.languagetool.rules.Rule

messages

Constructor Summary

Constructors

Constructor	Description
VerbAgreementRule(ResourceBundle messages, German language)

Method Summary

Modifier and Type	Method	Description
List<DisambiguationPatternRule>	getAntiPatterns()	Overwrite this to avoid false alarms by ignoring these patterns - note that your Rule.match(AnalyzedSentence) method needs to call Rule.getSentenceWithImmunization(org.languagetool.AnalyzedSentence) for this to be used and you need to check AnalyzedTokenReadings.isImmunized()
String	getDescription()	A short description of the error this rule can detect, usually in the language of the text that is checked.
String	getId()	A string used to identify the rule in e.g.
private List<String>	getPronounSuggestions(AnalyzedTokenReadings verb, boolean toUppercase)
private List<String>	getVerbSuggestions(AnalyzedTokenReadings verb, String expectedVerbPOS, boolean toUppercase)
private boolean	hasUnambiguouslyPersonAndNumber(AnalyzedTokenReadings tokenReadings, String person, String number)
private boolean	isFiniteVerb(AnalyzedTokenReadings token)
private boolean	isNear(int a, int b)
private boolean	isQuotationMark(AnalyzedTokenReadings token)
RuleMatch[]	match(List<AnalyzedSentence> sentences)
private List<RuleMatch>	match(AnalyzedSentence sentence, int pos, AnalyzedSentence wholeSentence)
int	minToCheckParagraph()	Gives back the minimum number of paragraphs to check to give back a correct result.
private boolean	nextButOneIsModal(AnalyzedTokenReadings[] tokens, int pos)
private RuleMatch	ruleMatchWrongVerb(AnalyzedTokenReadings token, int pos, AnalyzedSentence sentence)
private RuleMatch	ruleMatchWrongVerbSubject(AnalyzedTokenReadings subject, AnalyzedTokenReadings verb, String expectedVerbPOS, int pos, AnalyzedSentence sentence)
private void	sortBySimilarity(List<String> suggestions, String markedText)
private VerbAgreementRule.BooleanAndFiniteVerb	verbDoesMatchPersonAndNumber(AnalyzedTokenReadings token1, AnalyzedTokenReadings token2, String person, String number, AnalyzedTokenReadings finiteVerb)

Methods inherited from class org.languagetool.rules.TextLevelRule

estimateContextForSureMatch, match, match

Methods inherited from class org.languagetool.rules.Rule

addExamplePair, addTags, addToneTags, cacheAntiPatterns, getCategory, getCorrectExamples, getDistanceTokens, getErrorTriggeringExamples, getFullId, getIncorrectExamples, getLocQualityIssueType, getMinPrevMatches, getPriority, getRuleOptions, getSentenceWithImmunization, getSourceFile, getSubId, getTags, getToneTags, getUrl, hasTag, hasToneTag, isDefaultOff, isDefaultTempOff, isDictionaryBasedSpellingRule, isGoalSpecific, isIncludedInHiddenMatches, isOfficeDefaultOff, isOfficeDefaultOn, isPremium, makeAntiPatterns, setCategory, setCorrectExamples, setDefaultOff, setDefaultOn, setDefaultTempOff, setDistanceTokens, setErrorTriggeringExamples, setExamplePair, setGoalSpecific, setIncludedInHiddenMatches, setIncorrectExamples, setLocQualityIssueType, setMinPrevMatches, setOfficeDefaultOff, setOfficeDefaultOn, setPremium, setPriority, setTags, setToneTags, setUrl, supportsLanguage, toRuleMatchArray, useInOffice

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

ANTI_PATTERNS

private static final List<List<PatternToken>> ANTI_PATTERNS

BIN_IGNORE

private static final Set<String> BIN_IGNORE

CONJUNCTIONS

private static final Set<String> CONJUNCTIONS

QUOTATION_MARKS

private static final Set<String> QUOTATION_MARKS

COMMA

private static final Pattern COMMA

language

private final German language

antiPatterns

private final Supplier<List<DisambiguationPatternRule>> antiPatterns

Constructor Details

VerbAgreementRule

public VerbAgreementRule(ResourceBundle messages,
 German language)

Method Details

getId

public String getId()

Description copied from class: Rule

A string used to identify the rule in e.g. configuration files. This string is supposed to be unique and to stay the same in all upcoming versions of LanguageTool. It's supposed to contain only the characters A-Z and the underscore.

Specified by:

getId in class Rule

getDescription

public String getDescription()

Description copied from class: Rule

A short description of the error this rule can detect, usually in the language of the text that is checked.

Specified by:

getDescription in class Rule

match

public RuleMatch[] match(List<AnalyzedSentence> sentences)

Specified by:

match in class TextLevelRule

match

private List<RuleMatch> match(AnalyzedSentence sentence,
 int pos,
 AnalyzedSentence wholeSentence)

getAntiPatterns

public List<DisambiguationPatternRule> getAntiPatterns()

Description copied from class: Rule

Overwrite this to avoid false alarms by ignoring these patterns - note that your Rule.match(AnalyzedSentence) method needs to call Rule.getSentenceWithImmunization(org.languagetool.AnalyzedSentence) for this to be used and you need to check AnalyzedTokenReadings.isImmunized()

Overrides:

getAntiPatterns in class Rule

nextButOneIsModal

private boolean nextButOneIsModal(AnalyzedTokenReadings[] tokens,
 int pos)

isNear

private boolean isNear(int a,
 int b)

Returns:

true if |a - b| invalid input: '<' 5, and a != -1

isQuotationMark

private boolean isQuotationMark(AnalyzedTokenReadings token)

hasUnambiguouslyPersonAndNumber

private boolean hasUnambiguouslyPersonAndNumber(AnalyzedTokenReadings tokenReadings,
 String person,
 String number)

Returns:

true if the verb @param token (if it is a verb) matches @param person and @param number, and matches no other person/number

isFiniteVerb

private boolean isFiniteVerb(AnalyzedTokenReadings token)

Returns:

true if @param token is a finite verb, and it is no participle, pronoun or number

verbDoesMatchPersonAndNumber

private VerbAgreementRule.BooleanAndFiniteVerb verbDoesMatchPersonAndNumber(AnalyzedTokenReadings token1,
 AnalyzedTokenReadings token2,
 String person,
 String number,
 AnalyzedTokenReadings finiteVerb)

Returns:

false if neither the verb @param token1 (if any) nor @param token2 match @param person and @param number, and none of them is "und" or "," if a finite verb is found, it is saved in finiteVerb

getVerbSuggestions

private List<String> getVerbSuggestions(AnalyzedTokenReadings verb,
 String expectedVerbPOS,
 boolean toUppercase)

Parameters:

toUppercase - true when the suggestions should be capitalized

Returns:

a list of forms of @param verb which match @param expectedVerbPOS (person:number)

getPronounSuggestions

private List<String> getPronounSuggestions(AnalyzedTokenReadings verb,
 boolean toUppercase)

Parameters:

toUppercase - true when the suggestions should be capitalized

Returns:

a list of pronouns which match the person and number of @param verb

ruleMatchWrongVerb

private RuleMatch ruleMatchWrongVerb(AnalyzedTokenReadings token,
 int pos,
 AnalyzedSentence sentence)

ruleMatchWrongVerbSubject

private RuleMatch ruleMatchWrongVerbSubject(AnalyzedTokenReadings subject,
 AnalyzedTokenReadings verb,
 String expectedVerbPOS,
 int pos,
 AnalyzedSentence sentence)

sortBySimilarity

private void sortBySimilarity(List<String> suggestions,
 String markedText)

minToCheckParagraph

public int minToCheckParagraph()

Description copied from class: TextLevelRule

Gives back the minimum number of paragraphs to check to give back a correct result. Only used by LO office extension.

• n == -1 --> need to check full text (use only if really needed / bad performance) examples: AbstractWordCoherencyRule, GenericUnpairedBracketsRule, ...
• n == 0 --> need only to check the current paragraph examples: MultipleWhitespaceRule, LongParagraphRule, ...
• n >= 1 --> need only to check n paragraphs around the current paragraph examples: ParagraphRepeatBeginningRule (n == 1), WordRepeatBeginningRule (n == 2), ...

Specified by:

minToCheckParagraph in class TextLevelRule