Package org.languagetool.rules

Class ReadabilityRule

java.lang.Object

org.languagetool.rules.Rule

org.languagetool.rules.TextLevelRule

org.languagetool.rules.ReadabilityRule

Direct Known Subclasses:

GermanReadabilityRule, PortugueseReadabilityRule

public class ReadabilityRule
extends TextLevelRule

A rule that checks the readability of English text (using the Flesch-Reading-Ease Formula) If tooEasyTest == true, the rule tests if paragraph level > level (readability is too easy) If tooEasyTest == false, the rule tests if paragraph level < level (readability is too difficult)

Since:

4.4

Field Summary

Fields

Modifier and Type	Field	Description
private final Language	lang
private final int	level
private final LinguServices	linguServices
private static final int	MARK_WORDS
private static final int	MIN_WORDS
private int	nAllSentences
private int	nAllSyllables
private int	nAllWords
private final boolean	tooEasyTest

Fields inherited from class org.languagetool.rules.Rule

messages

Constructor Summary

Constructors

Constructor	Description
ReadabilityRule(ResourceBundle messages, Language lang, UserConfig userConfig, boolean tooEasyTest)
ReadabilityRule(ResourceBundle messages, Language lang, UserConfig userConfig, boolean tooEasyTest, boolean defaultOn)
ReadabilityRule(ResourceBundle messages, Language lang, UserConfig userConfig, boolean tooEasyTest, int level)
ReadabilityRule(ResourceBundle messages, Language lang, UserConfig userConfig, boolean tooEasyTest, int level, boolean defaultOn)

Method Summary

Modifier and Type	Method	Description
int	getAllSentences()
int	getAllSyllables()
int	getAllWords()
String	getConfigureText()
String	getDescription()	A short description of the error this rule can detect, usually in the language of the text that is checked.
double	getFleschReadingEase(double asl, double asw)	get Flesch-Reading-Ease (Formula for readability) for English the formula dependence on the language and has to be overridden for every supported language
String	getId()	A string used to identify the rule in e.g.
String	getId(boolean tooEasyTest)
protected String	getMessage(int level, int FRE, int ASL, int ASW)
private int	getReadabilityLevel(double fre)	get level of readability (0 - 6)
RuleOption[]	getRuleOptions()	Overwrite this to return configurable options for option panel
private static boolean	isVowel(char c)
RuleMatch[]	match(List<AnalyzedSentence> sentences)
int	minToCheckParagraph()	Gives back the minimum number of paragraphs to check to give back a correct result.
String	printMessageLevel(int level)
protected int	simpleSyllablesCount(String word)	A simple method to count the Syllables of a word TODO: further improvement of the method A hyphenation service should be used if available (e.g.

Methods inherited from class org.languagetool.rules.TextLevelRule

estimateContextForSureMatch, match, match

Methods inherited from class org.languagetool.rules.Rule

addExamplePair, addTags, addToneTags, cacheAntiPatterns, getAntiPatterns, getCategory, getCorrectExamples, getDistanceTokens, getErrorTriggeringExamples, getFullId, getIncorrectExamples, getLocQualityIssueType, getMinPrevMatches, getPriority, 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

MARK_WORDS

private static final int MARK_WORDS

See Also:

• Constant Field Values

MIN_WORDS

private static final int MIN_WORDS

See Also:

• Constant Field Values

linguServices

private final LinguServices linguServices

lang

private final Language lang

level

private final int level

tooEasyTest

private final boolean tooEasyTest

nAllSentences

private int nAllSentences

nAllWords

private int nAllWords

nAllSyllables

private int nAllSyllables

Constructor Details

ReadabilityRule

public ReadabilityRule(ResourceBundle messages,
 Language lang,
 UserConfig userConfig,
 boolean tooEasyTest)

ReadabilityRule

public ReadabilityRule(ResourceBundle messages,
 Language lang,
 UserConfig userConfig,
 boolean tooEasyTest,
 int level)

ReadabilityRule

public ReadabilityRule(ResourceBundle messages,
 Language lang,
 UserConfig userConfig,
 boolean tooEasyTest,
 boolean defaultOn)

ReadabilityRule

public ReadabilityRule(ResourceBundle messages,
 Language lang,
 UserConfig userConfig,
 boolean tooEasyTest,
 int level,
 boolean defaultOn)

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

getId

public String getId(boolean tooEasyTest)

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

getConfigureText

public String getConfigureText()

getRuleOptions

public RuleOption[] getRuleOptions()

Description copied from class: Rule

Overwrite this to return configurable options for option panel

Overrides:

getRuleOptions in class Rule

getAllSentences

public int getAllSentences()

getAllWords

public int getAllWords()

getAllSyllables

public int getAllSyllables()

printMessageLevel

public String printMessageLevel(int level)

getMessage

protected String getMessage(int level,
 int FRE,
 int ASL,
 int ASW)

getReadabilityLevel

private int getReadabilityLevel(double fre)

get level of readability (0 - 6)

getFleschReadingEase

public double getFleschReadingEase(double asl,
 double asw)

get Flesch-Reading-Ease (Formula for readability) for English the formula dependence on the language and has to be overridden for every supported language

isVowel

private static boolean isVowel(char c)

simpleSyllablesCount

protected int simpleSyllablesCount(String word)

A simple method to count the Syllables of a word TODO: further improvement of the method A hyphenation service should be used if available (e.g. from LO extension) Has to be overridden for every language

match

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

Specified by:

match in class TextLevelRule

Throws:

IOException

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