Class SubjectVerbAgreementRule

java.lang.Object

org.languagetool.rules.Rule

org.languagetool.rules.de.SubjectVerbAgreementRule

public class SubjectVerbAgreementRule
extends org.languagetool.rules.Rule

Check subject verb agreement for verb forms "ist", "sind", "war" and "waren". For example, it detects the errors in:

• Das Auto sind schnell.
• Das Auto waren schnell.
• Die Autos ist schnell.
• Die Katze und der Hund ist schön.

See our wiki for documentation of the steps this rule relies on.

Since:

2.9

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	SubjectVerbAgreementRule.SingularPluralPair

Field Summary

Fields

Modifier and Type	Field	Description
private static final List<List<org.languagetool.rules.patterns.PatternToken>>	ANTI_PATTERNS
private static final List<String>	CURRENCIES
private final German	language
private static final org.languagetool.chunking.ChunkTag	NPP
private static final org.languagetool.chunking.ChunkTag	NPS
private static final List<SubjectVerbAgreementRule.SingularPluralPair>	PAIRS
private final Set<String>	plural
private static final org.languagetool.chunking.ChunkTag	PP
private static final List<String>	QUESTION_PRONOUNS
private final Set<String>	singular
private final GermanTagger	tagger

Fields inherited from class org.languagetool.rules.Rule

messages

Constructor Summary

Constructors

Constructor	Description
SubjectVerbAgreementRule(ResourceBundle messages, German language)

Method Summary

Modifier and Type	Method	Description
private boolean	containsOnlyInfinitivesToTheLeft(org.languagetool.AnalyzedTokenReadings[] tokens, int startPos)
private boolean	containsRegexToTheLeft(String regex, org.languagetool.AnalyzedTokenReadings[] tokens, int startPos)
int	estimateContextForSureMatch()
List<org.languagetool.tagging.disambiguation.rules.DisambiguationPatternRule>	getAntiPatterns()
String	getDescription()
String	getId()
private String	getPluralFor(String token)
private @Nullable org.languagetool.rules.RuleMatch	getPluralMatchOrNull(org.languagetool.AnalyzedTokenReadings[] tokens, int i, org.languagetool.AnalyzedTokenReadings token, String tokenStr, org.languagetool.AnalyzedSentence sentence)
private String	getSingularFor(String token)
private @Nullable org.languagetool.rules.RuleMatch	getSingularMatchOrNull(org.languagetool.AnalyzedTokenReadings[] tokens, int i, org.languagetool.AnalyzedTokenReadings token, String tokenStr, org.languagetool.AnalyzedSentence sentence)
URL	getUrl()
private boolean	hasQuestionPronounToTheLeft(org.languagetool.AnalyzedTokenReadings[] tokens, int startPos)
private boolean	hasUnknownTokenAt(org.languagetool.AnalyzedTokenReadings[] tokens, int startPos, int endPos)
private boolean	hasUnknownTokenToTheLeft(org.languagetool.AnalyzedTokenReadings[] tokens, int startPos)
private boolean	hasUnknownTokenToTheRight(org.languagetool.AnalyzedTokenReadings[] tokens, int startPos)
private boolean	hasVerbToTheLeft(org.languagetool.AnalyzedTokenReadings[] tokens, int startPos)
private boolean	isCurrency(org.languagetool.AnalyzedTokenReadings token)
(package private) boolean	isFollowedByNominativePlural(org.languagetool.AnalyzedTokenReadings[] tokens, int startPos)
org.languagetool.rules.RuleMatch[]	match(org.languagetool.AnalyzedSentence sentence)
(package private) boolean	prevChunkIsNominative(org.languagetool.AnalyzedTokenReadings[] tokens, int startPos)

Methods inherited from class org.languagetool.rules.Rule

addExamplePair, getCategory, getConfigureText, getCorrectExamples, getDefaultValue, getErrorTriggeringExamples, getIncorrectExamples, getLocQualityIssueType, getMaxConfigurableValue, getMinConfigurableValue, getSentenceWithImmunization, hasConfigurableValue, isDefaultOff, isDefaultTempOff, isDictionaryBasedSpellingRule, isOfficeDefaultOff, isOfficeDefaultOn, makeAntiPatterns, setCategory, setCorrectExamples, setDefaultOff, setDefaultOn, setDefaultTempOff, setErrorTriggeringExamples, setIncorrectExamples, setLocQualityIssueType, setOfficeDefaultOff, setOfficeDefaultOn, setUrl, supportsLanguage, toRuleMatchArray, useInOffice

Methods inherited from class Object

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

Field Details

NPS

private static final org.languagetool.chunking.ChunkTag NPS

NPP

private static final org.languagetool.chunking.ChunkTag NPP

PP

private static final org.languagetool.chunking.ChunkTag PP

QUESTION_PRONOUNS

private static final List<String> QUESTION_PRONOUNS

CURRENCIES

private static final List<String> CURRENCIES

PAIRS

private static final List<SubjectVerbAgreementRule.SingularPluralPair> PAIRS

singular

private final Set<String> singular

plural

private final Set<String> plural

ANTI_PATTERNS

private static final List<List<org.languagetool.rules.patterns.PatternToken>> ANTI_PATTERNS

tagger

private final GermanTagger tagger

language

private final German language

Constructor Details

SubjectVerbAgreementRule

public SubjectVerbAgreementRule(ResourceBundle messages,
 German language)

Method Details

getId

public String getId()

Specified by:

getId in class org.languagetool.rules.Rule

getDescription

public String getDescription()

Specified by:

getDescription in class org.languagetool.rules.Rule

estimateContextForSureMatch

public int estimateContextForSureMatch()

Overrides:

estimateContextForSureMatch in class org.languagetool.rules.Rule

getAntiPatterns

public List<org.languagetool.tagging.disambiguation.rules.DisambiguationPatternRule> getAntiPatterns()

Overrides:

getAntiPatterns in class org.languagetool.rules.Rule

getUrl

public URL getUrl()

Overrides:

getUrl in class org.languagetool.rules.Rule

match

public org.languagetool.rules.RuleMatch[] match(org.languagetool.AnalyzedSentence sentence)
                                         throws IOException

Specified by:

match in class org.languagetool.rules.Rule

Throws:

IOException

getSingularMatchOrNull

@Nullable
private @Nullable org.languagetool.rules.RuleMatch getSingularMatchOrNull(org.languagetool.AnalyzedTokenReadings[] tokens,
 int i,
 org.languagetool.AnalyzedTokenReadings token,
 String tokenStr,
 org.languagetool.AnalyzedSentence sentence)
                                                                   throws IOException

Throws:

IOException

getPluralMatchOrNull

@Nullable
private @Nullable org.languagetool.rules.RuleMatch getPluralMatchOrNull(org.languagetool.AnalyzedTokenReadings[] tokens,
 int i,
 org.languagetool.AnalyzedTokenReadings token,
 String tokenStr,
 org.languagetool.AnalyzedSentence sentence)

isCurrency

private boolean isCurrency(org.languagetool.AnalyzedTokenReadings token)

prevChunkIsNominative

boolean prevChunkIsNominative(org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos)

hasUnknownTokenToTheLeft

private boolean hasUnknownTokenToTheLeft(org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos)

hasUnknownTokenToTheRight

private boolean hasUnknownTokenToTheRight(org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos)

hasUnknownTokenAt

private boolean hasUnknownTokenAt(org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos,
 int endPos)

hasQuestionPronounToTheLeft

private boolean hasQuestionPronounToTheLeft(org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos)

hasVerbToTheLeft

private boolean hasVerbToTheLeft(org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos)

containsRegexToTheLeft

private boolean containsRegexToTheLeft(String regex,
 org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos)

containsOnlyInfinitivesToTheLeft

private boolean containsOnlyInfinitivesToTheLeft(org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos)
                                          throws IOException

Throws:

IOException

isFollowedByNominativePlural

boolean isFollowedByNominativePlural(org.languagetool.AnalyzedTokenReadings[] tokens,
 int startPos)

getSingularFor

private String getSingularFor(String token)

getPluralFor

private String getPluralFor(String token)