Readability-VisualWorks/Readability.pst at master · brackendev/Readability-VisualWorks · GitHub

1
<?xml version="1.0"?><st-source><!-- Name: ReadabilityNotice: MIT LicenseCopyright (c) 2018-2019 brackendevPermission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the "Software"), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included in allcopies or substantial portions of the Software.THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THEAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHERLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THESOFTWARE.Comment: <https://brackendev.github.io/Readability-VisualWorks/>DevelopmentPrerequisites: #(#(#any 'Base VisualWorks' '') #(#any 'Grease-VisualWorks-Extensions' '') #(#any 'Regex11' '') #(#any 'SUnitToo' '') #(#any 'SUnitToo(ls)' ''))DisregardedPrerequisites: #()PackageName: ReadabilityParcel: #('Readability')ParcelDirectory: ReadabilityPrerequisiteDescriptions: #(#(#name 'Base VisualWorks' #componentType #bundle) #(#name 'Grease-VisualWorks-Extensions' #componentType #package) #(#name 'Regex11' #componentType #package) #(#name 'SUnitToo' #componentType #package) #(#name 'SUnitToo(ls)' #componentType #package))PrerequisiteParcels: #(#('Base VisualWorks' '') #('Grease-VisualWorks-Extensions' '') #('Regex11' '') #('SUnitToo' '') #('SUnitToo(ls)' ''))Date: 11:43:27 AM July 7, 2019 --><time-stamp>From VisualWorks® Personal Use Edition, 8.3 of July 28, 2017 on July 7, 2019 at 11:43:27 AM</time-stamp><do-it>(Dialog confirm: 'You are filing-in a Parcel source file!\\While this is possible it will not have\the same effect as loading the parcel.\None of the Parcel''s prerequisites will\be loaded and none of its load actions\will be performed.\\Are you sure you want to file-in?' withCRs) ifFalse: [self error: 'Parcel file-in abandoned.  Choose terminate or close.']</do-it><class><name>ReadabilityTest</name><environment>Smalltalk</environment><super>SUnit.TestCase</super><private>false</private><indexed-type>none</indexed-type><inst-vars>testString1 testString2 </inst-vars><class-inst-vars></class-inst-vars><imports></imports><category></category><attributes><package>Readability</package></attributes></class><comment><class-id>ReadabilityTest</class-id><body>ReadabilityTest is a test class for testing the behavior of Readability.Instance Variables:	testString1		&lt;ByteString&gt; 	Used for testing	testString2		&lt;ByteString&gt;	Used for testing</body></comment><class><name>Readability</name><environment>Smalltalk</environment><super>Core.Object</super><private>false</private><indexed-type>none</indexed-type><inst-vars></inst-vars><class-inst-vars></class-inst-vars><imports></imports><category></category><attributes><package>Readability</package></attributes></class><comment><class-id>Readability</class-id><body>I am Readability, an object to determine readability and comprehension difficulty for contemporary English text.Sample invocations:string := 'The Australian platypus is seemingly a hybrid of a mammal and reptilian creature.'.Readability automatedReadabilityIndexForString: string.Readability colemanLiauIndexForString: string.Readability fleschReadingEaseForString: string.Readability fleschKincaidGradeLevelForString: string.Readability gunningFogIndexForString: string.Readability smogGradeForString: string.</body></comment><methods><class-id>ReadabilityTest</class-id> <category>tests</category><body package="Readability">testAlphanumericCharactersInString	| r |	r := Readability new.	self assert: (r alphanumericCharactersInString: testString1) equals: 68.	self assert: (r alphanumericCharactersInString: testString2) equals: 1149</body><body package="Readability">testAlphanumericSentencesInString	| r |	r := Readability new.	self		assert: (r alphanumericSentencesInString: testString1)		equals: 'The Australian platypus is seemingly a hybrid of a mammal and reptilian creature'.	self		assert: (r alphanumericSentencesInString: testString2)		equals:			'Four score and seven years ago our fathers brought forth on this continent a new nation conceived in liberty and dedicated to the proposition that all men are created equal Now we are engaged in a great civil war testing whether that nation or any nation so conceived and so dedicated can long endure We are met on a great battlefield of that war We have come to dedicate a portion of that field as a final resting place for those who here gave their lives that that nation might live It is altogether fitting and proper that we should do this But in a larger sense we can not dedicate we can not consecrate we can not hallow this ground The brave men living and dead who struggled here have consecrated it far above our poor power to add or detract The world will little note nor long remember what we say here but it can never forget what they did here It is for us the living rather to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced It is rather for us to be here dedicated to the great task remaining before us that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion that we here highly resolve that these dead shall not have died in vain that this nation under God shall have a new birth of freedom and that government of the people by the people for the people shall not perish from the earth'</body><body package="Readability">testAutomatedReadabilityIndexForString	self		assert:			((Readability automatedReadabilityIndexForString: testString1)				at: 'Score')		equals: 9.7.	self		assert:			((Readability automatedReadabilityIndexForString: testString1)				at: 'Ages')		equals: '13-14'.	self		assert:			((Readability automatedReadabilityIndexForString: testString1)				at: 'U.S.A. School Level')		equals: '8'.	self		assert:			((Readability automatedReadabilityIndexForString: testString2)				at: 'Score')		equals: 12.1.	self		assert:			((Readability automatedReadabilityIndexForString: testString2)				at: 'Ages')		equals: '16-17'.	self		assert:			((Readability automatedReadabilityIndexForString: testString2)				at: 'U.S.A. School Level')		equals: '11'</body><body package="Readability">testAutomatedReadabilityIndexSchoolLevelForScore	self		assert: (Readability				automatedReadabilityIndexGradeLevelForScore: 9.7)		equals: '8'.	self assert: (Readability				automatedReadabilityIndexGradeLevelForScore: 12.1)		equals: '11'.</body><body package="Readability">testAutomatedReadabilityIndexScoreForString	self		assert: (Readability automatedReadabilityIndexScoreForString: testString1)		equals: 9.7.	self		assert: (Readability automatedReadabilityIndexScoreForString: testString2)		equals: 12.1.</body><body package="Readability">testColemanLiauIndexForString	self assert: (Readability colemanLiauIndexForString: testString1) printString equals: '14.9'.	self assert: (Readability colemanLiauIndexForString: testString2) printString equals: '9.1'</body><body package="Readability">testComplexWordsInString	| r |	r := Readability new.	self assert: (r complexWordsInString: testString1) equals: 3.	self assert: (r complexWordsInString: testString2) equals: 12</body><body package="Readability">testFleschKincaidGradeLevelForString	self assert: (Readability fleschKincaidGradeLevelForString: testString1) equals: 13.1.	self assert: (Readability fleschKincaidGradeLevelForString: testString2) equals: 11.0</body><body package="Readability">testFleschReadingEaseForString	self		assert: ((Readability fleschReadingEaseForString: testString1) at: 'Score')		equals: 24.4.	self		assert:			((Readability fleschReadingEaseForString: testString1)				at: 'U.S.A. School Level')		equals: 'College Graduate'.	self		assert: ((Readability fleschReadingEaseForString: testString1) at: 'Notes')		equals: 'Very difficult to read. Best understood by university graduates.'.	self		assert: ((Readability fleschReadingEaseForString: testString2) at: 'Score')		equals: 64.8.	self		assert:			((Readability fleschReadingEaseForString: testString2)				at: 'U.S.A. School Level')		equals: '8-9'.	self		assert: ((Readability fleschReadingEaseForString: testString2) at: 'Notes')		equals: 'Plain English. Easily understood by 13- to 15-year-old students.'</body><body package="Readability">testFleschReadingEaseNotesForScore	self		assert: (Readability fleschReadingEaseNotesForScore: 24.4)		equals: 'Very difficult to read. Best understood by university graduates.'.	self		assert: (Readability fleschReadingEaseNotesForScore: 64.8)		equals: 'Plain English. Easily understood by 13- to 15-year-old students.'</body><body package="Readability">testFleschReadingEaseSchoolLevelForScore	self		assert: (Readability fleschReadingEaseGradeLevelForScore: 24.4)		equals: 'College Graduate'.	self		assert: (Readability fleschReadingEaseGradeLevelForScore: 64.8)		equals: '8-9'</body><body package="Readability">testFleschReadingEaseScoreForString	self		assert: (Readability fleschReadingEaseScoreForString: testString1)		equals: 24.4.	self		assert: (Readability fleschReadingEaseScoreForString: testString2)		equals: 64.8</body><body package="Readability">testGunningFogIndexForString	self assert: (Readability gunningFogIndexForString: testString1) printString equals: '14.4'.	self assert: (Readability gunningFogIndexForString: testString2) printString equals: '12.6'</body><body package="Readability">testIsWordCapitalized	| r |	r := Readability new.	self assert: (r isWordCapitalized: 'Capitalized') equals: true.	self assert: (r isWordCapitalized: 'not capitalized') equals: false.	self assert: (r isWordCapitalized: 'Y') equals: true.	self assert: (r isWordCapitalized: 'n') equals: false</body><body package="Readability">testIsWordPolysyllableExcludeCommonSuffixes	| r |	r := Readability new.	self assert: (r isWordPolysyllable: 'crowdsourcing' excludeCommonSuffixes: false) equals: true.	self assert: (r isWordPolysyllable: 'crowdsourcing' excludeCommonSuffixes: true) equals: false</body><body package="Readability">testPolysyllableWordsInStringExcludeCommonSuffixes	| r |	r := Readability new.	self assert: (r polysyllableWordsInString: testString1 excludeCommonSuffixes: false) equals: 4.	self assert: (r polysyllableWordsInString: testString1 excludeCommonSuffixes: true) equals: 4.	self assert: (r polysyllableWordsInString: testString2 excludeCommonSuffixes: false) equals: 20.	self assert: (r polysyllableWordsInString: testString2 excludeCommonSuffixes: true) equals: 12</body><body package="Readability">testSentenceCountInString	| r |	r := Readability new.	self assert: (r sentenceCountInString: testString1) equals: 1.	self assert: (r sentenceCountInString: testString2) equals: 10</body><body package="Readability">testSmogGradeForString	self assert: (Readability smogGradeForString: testString1) equals: 11.6.	self assert: (Readability smogGradeForString: testString2) equals: 8.3</body><body package="Readability">testSyllablesInString	| r |	r := Readability new.	self assert: (r syllablesInString: testString1) equals: 26.	self assert: (r syllablesInString: testString2) equals: 367</body><body package="Readability">testSyllablesInWord	| r |	r := Readability new.	self assert: (r syllablesInWord: 'The') equals: 1.	self assert: (r syllablesInWord: 'Australian') equals: 4.	self assert: (r syllablesInWord: 'platypus') equals: 3.	self assert: (r syllablesInWord: 'is') equals: 1.	self assert: (r syllablesInWord: 'seemingly') equals: 3.	self assert: (r syllablesInWord: 'a') equals: 1.	self assert: (r syllablesInWord: 'hybrid') equals: 2.	self assert: (r syllablesInWord: 'of') equals: 1.	self assert: (r syllablesInWord: 'a') equals: 1.	self assert: (r syllablesInWord: 'mammal') equals: 2.	self assert: (r syllablesInWord: 'and') equals: 1.	self assert: (r syllablesInWord: 'reptilian') equals: 4.	self assert: (r syllablesInWord: 'creature.') equals: 2</body><body package="Readability">testWordHasSuffixWord	| r |	r := Readability new.	self assert: (r wordHasSuffix: 'ED' word: 'worked') equals: true.	self assert: (r wordHasSuffix: 'es' word: 'worked') equals: false</body><body package="Readability">testWordsInString	| r |	r := Readability new.	self assert: ((r wordsInString: testString1) size) equals: 13.	self assert: ((r wordsInString: testString2) size) equals: 271</body></methods><methods><class-id>ReadabilityTest</class-id> <category>running</category><body package="Readability">setUp	testString1 := 'The Australian platypus is seemingly a hybrid of a mammal and reptilian creature.'.	testString2 := 'Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battlefield of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But, in a larger sense, we can not dedicate, we can not consecrate, we can not hallow this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us -- that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion that we here highly resolve that these dead shall not have died in vain -- that this nation, under God, shall have a new birth of freedom -- and that government of the people, by the people, for the people, shall not perish from the earth.'</body></methods><methods><class-id>Readability</class-id> <category>private</category><body package="Readability">alphanumericCharactersInString: aString	| count |	count := 0.	aString asArray		do: [ :char | 			char isAlphaNumeric				ifTrue: [ count := count + 1 ] ].	^ count</body><body package="Readability">alphanumericSentencesInString: aString	| stripped flattened |	stripped := aString allRegexMatches: '[a-zA-Z0-9 ]'.	flattened := stripped inject: '' into: [ :text :each | text, each asString, '' ].	^ (flattened trimBlanks trimSeparators) copyReplaceAll: '  ' with: ' '.</body><body package="Readability">complexWordsInString: aString	"Attemping the complex word suggestions at http://en.wikipedia.org/wiki/Gunning_fog_index"	| count words polysyllable properNoun familiarJargon compound |	count := 0.	words := aString runsFailing: [:char | char isSeparator].	words		do: [ :each | 			polysyllable := self isWordPolysyllable: each excludeCommonSuffixes: true.			properNoun := self isWordCapitalized: each.			familiarJargon := false.	"TODO"			compound := false.	"TODO"			polysyllable &amp; properNoun not &amp; familiarJargon not &amp; compound not				ifTrue: [ count := count + 1 ] ].	^ count</body><body package="Readability">isWordCapitalized: aString	| letter |	letter :=aString size &gt; 1		ifTrue: [ aString copyFrom: 1 to: 1 ]		ifFalse: [ aString ].	^ letter matchesRegex: '([A-Z])'</body><body package="Readability">isWordPolysyllable: aString excludeCommonSuffixes: aBoolean	| syllables |	aString size &lt; 3		ifTrue: [ ^ false ].	syllables := self syllablesInWord: aString asLowercase.	syllables &gt; 2		ifTrue: [ aBoolean				ifTrue: [ (self wordHasSuffix: 'ed' word: aString asLowercase) not &amp; (self wordHasSuffix: 'es' word: aString asLowercase) not						&amp; (self wordHasSuffix: 'ing' word: aString asLowercase) not						ifTrue: [ ^ true ] ]				ifFalse: [ ^ true ] ].	^ false</body><body package="Readability">polysyllableWordsInString: aString excludeCommonSuffixes: aBoolean	| polysyllables words |	polysyllables := 0.	words := aString runsFailing: [:char | char isSeparator].	words		do: [ :each | 			(self isWordPolysyllable: each excludeCommonSuffixes: aBoolean)				ifTrue: [ polysyllables := polysyllables + 1 ] ].	^ polysyllables</body><body package="Readability">sentenceCountInString: aString	| count periodValue lastChar |	periodValue := Character codePoint: 46.	count := aString occurrencesOf: periodValue.	lastChar := aString string at: aString size.	lastChar value = periodValue		ifTrue: [ ^ count ]		ifFalse: [ ^ count + 1 ]</body><body package="Readability">syllablesInString: aString	| syllables words |	syllables := 0.	words := self wordsInString: aString.	words do: [ :each | syllables := syllables + (self syllablesInWord: each) ].	^ syllables</body><body package="Readability">syllablesInWord: aString	"Based on objC-syllable-counter by Anthony Nichols &lt;https://github.com/nicholjs/objC-syllable-counter&gt;"	| subsyl addsyl exceptionsOne exceptionsTwo lowercaseString replacedString wordSplit validWordParts syllables matchArray |	subsyl := #('cial' 'tia' 'cius' 'cious' 'uiet' 'gious' 'geous' 'priest' 'giu' 'dge' 'ion' 'iou' 'sia$' '.che$' '.ched$' '.abe$' '.ace$' '.ade$' '.age$' '.aged$' '.ake$' '.ale$' '.aled$' '.ales$' '.ane$' '.ame$' '.ape$' '.are$' '.ase$' '.ashed$' '.asque$' '.ate$' '.ave$' '.azed$' '.awe$' '.aze$' '.aped$' '.athe$' '.athes$' '.ece$' '.ese$' '.esque$' '.esques$' '.eze$' '.gue$' '.ibe$' '.ice$' '.ide$' '.ife$' '.ike$' '.ile$' '.ime$' '.ine$' '.ipe$' '.iped$' '.ire$' '.ise$' '.ished$' '.ite$' '.ive$' '.ize$' '.obe$' '.ode$' '.oke$' '.ole$' '.ome$' '.one$' '.ope$' '.oque$' '.ore$' '.ose$' '.osque$' '.osques$' '.ote$' '.ove$' '.pped$' '.sse$' '.ssed$' '.ste$' '.ube$' '.uce$' '.ude$' '.uge$' '.uke$' '.ule$' '.ules$' '.uled$' '.ume$' '.une$' '.upe$' '.ure$' '.use$' '.ushed$' '.ute$' '.ved$' '.we$' '.wes$' '.wed$' '.yse$' '.yze$' '.rse$' '.red$' '.rce$' '.rde$' '.ily$' '.ne$' '.ely$' '.des$' '.gged$' '.kes$' '.ced$' '.ked$' '.med$' '.mes$' '.ned$' '.sed$' '.nce$' '.rles$' '.nes$' '.pes$' '.tes$' '.res$' '.ves$' 'ere$').	addsyl := #('ia' 'riet' 'dien' 'ien' 'iet' 'iu' 'iest' 'io' 'ii' 'ily' '.oala$' '.iara$' '.ying$' '.earest' '.arer' '.aress' '.eate$' '.eation$' '[aeiouym]bl$' '[aeiou]{3}' '^mc' 'ism' '^mc' 'asm' '([^aeiouy])\1l$' '[^l]lien' '^coa[dglx].' '[^gq]ua[^auieo]' 'dnt$').	exceptionsOne := #('abe' 'ace' 'ade' 'age' 'ale' 'are' 'use' 'ate' 'sense' 'resolve').	exceptionsTwo := #('created').	lowercaseString := aString asLowercase.	replacedString := lowercaseString copyWithRegex: '[^a-z]' matchesReplacedWith: ''.	wordSplit := replacedString allRegexMatches: '[aeiouy]+'.	validWordParts := OrderedCollection new: wordSplit size.	wordSplit		do: [ :each | 			each = ''				ifFalse: [ validWordParts add: each ] ].	syllables := 0.	subsyl		do: [ :each | 			matchArray := OrderedCollection new: addsyl size.			replacedString regex: each matchesCollect: [ :e | matchArray add: e ].			syllables := syllables - matchArray size ].	addsyl		do: [ :each | 			matchArray := OrderedCollection new: addsyl size.			replacedString regex: each matchesCollect: [ :e | matchArray add: e ].			syllables := syllables + matchArray size ].	(exceptionsOne includes: lowercaseString)		ifTrue: [ syllables := syllables - 1 ].	(exceptionsTwo includes: lowercaseString)		ifTrue: [ syllables := syllables + 1 ].	syllables := syllables + validWordParts size.	syllables = 0		ifTrue: [ ^ 1 ]		ifFalse: [ ^ syllables ]</body><body package="Readability">wordHasSuffix: aStringSuffix word: aString	| i |	i := aString findString: aStringSuffix startingAt: aString size - aStringSuffix size ignoreCase: true useWildcards: false.	^ (i last == 0) not</body><body package="Readability">wordsInString: aString	| cleaned |	cleaned := self alphanumericSentencesInString: aString.	^ cleaned findTokens: ' '</body></methods><methods><class-id>Readability class</class-id> <category>private</category><body package="Readability">automatedReadabilityIndexAgesForScore: aFloat	aFloat &gt;= 15		ifTrue: [ ^ '23+' ].	aFloat &gt;= 14		ifTrue: [ ^ '18-22' ].	aFloat &gt;= 13		ifTrue: [ ^ '17-18' ].	aFloat &gt;= 12		ifTrue: [ ^ '16-17' ].	aFloat &gt;= 11		ifTrue: [ ^ '15-16' ].	aFloat &gt;= 10		ifTrue: [ ^ '14-15' ].	aFloat &gt;= 9		ifTrue: [ ^ '13-14' ].	aFloat &gt;= 8		ifTrue: [ ^ '12-13' ].	aFloat &gt;= 7		ifTrue: [ ^ '11-12' ].	aFloat &gt;= 6		ifTrue: [ ^ '10-11' ].	aFloat &gt;= 5		ifTrue: [ ^ '9-10' ].	aFloat &gt;= 4		ifTrue: [ ^ '8-9' ].	aFloat &gt;= 3		ifTrue: [ ^ '7-8' ].	aFloat &gt;= 2		ifTrue: [ ^ '6-7' ].	^ '5-6'</body><body package="Readability">automatedReadabilityIndexGradeLevelForScore: aFloat	aFloat &gt;= 14		ifTrue: [ ^ 'College' ].	aFloat &gt;= 13		ifTrue: [ ^ '12' ].	aFloat &gt;= 12		ifTrue: [ ^ '11' ].	aFloat &gt;= 11		ifTrue: [ ^ '10' ].	aFloat &gt;= 10		ifTrue: [ ^ '9' ].	aFloat &gt;= 9		ifTrue: [ ^ '8' ].	aFloat &gt;= 8		ifTrue: [ ^ '7' ].	aFloat &gt;= 7		ifTrue: [ ^ '6' ].	aFloat &gt;= 6		ifTrue: [ ^ '5' ].	aFloat &gt;= 5		ifTrue: [ ^ '4' ].	aFloat &gt;= 4		ifTrue: [ ^ '3' ].	aFloat &gt;= 3		ifTrue: [ ^ '2' ].	aFloat &gt;= 2		ifTrue: [ ^ '1' ].	^ 'Kindergarten'</body><body package="Readability">automatedReadabilityIndexScoreForString: aString	| reachability wordsFound sentencesFound alphanumCharsFound score |	reachability := self new.	wordsFound := (reachability wordsInString: aString) size.	sentencesFound := reachability sentenceCountInString: aString.	alphanumCharsFound := reachability alphanumericCharactersInString: aString.	score := 4.71 * (alphanumCharsFound / wordsFound)		+ (0.5 * (wordsFound / sentencesFound) - 21.43).	^ score roundTo: 0.1</body><body package="Readability">fleschReadingEaseGradeLevelForScore: aFloat	aFloat &gt;= 90		ifTrue: [ ^ '5' ].	aFloat &gt;= 80		ifTrue: [ ^ '6' ].	aFloat &gt;= 70		ifTrue: [ ^ '7' ].	aFloat &gt;= 60		ifTrue: [ ^ '8-9' ].	aFloat &gt;= 50		ifTrue: [ ^ '10-12' ].	aFloat &gt;= 30		ifTrue: [ ^ 'College' ].	^ 'College Graduate'</body><body package="Readability">fleschReadingEaseNotesForScore: aFloat	aFloat &gt;= 90		ifTrue: [ ^ 'Very easy to read. Easily understood by an average 11-year-old student.' ].	aFloat &gt;= 80		ifTrue: [ ^ 'Easy to read. Conversational English for consumers.' ].	aFloat &gt;= 70		ifTrue: [ ^ 'Fairly easy to read.' ].	aFloat &gt;= 60		ifTrue: [ ^ 'Plain English. Easily understood by 13- to 15-year-old students.' ].	aFloat &gt;= 50		ifTrue: [ ^ 'Fairly difficult to read.' ].	aFloat &gt;= 30		ifTrue: [ ^ 'Difficult to read.' ].	^ 'Very difficult to read. Best understood by university graduates.'</body><body package="Readability">fleschReadingEaseScoreForString: aString	"Flesch Reading Ease &lt;http://en.wikipedia.org/wiki/Flesch-Kincaid_readability_tests&gt;"	| reachability totalWords totalSentences alphanumeric totalSyllables score |	reachability := self new.	totalWords := (reachability wordsInString: aString) size.	totalSentences := reachability sentenceCountInString: aString.	alphanumeric := reachability alphanumericSentencesInString: aString.	totalSyllables := reachability syllablesInString: alphanumeric.	score := 206.835 - (1.015 * (totalWords / totalSentences))		- (84.6 * (totalSyllables / totalWords)).	^ score roundTo: 0.1</body></methods><methods><class-id>Readability class</class-id> <category>public</category><body package="Readability">automatedReadabilityIndexForString: aString	"Automated Readability Index &lt;http://en.wikipedia.org/wiki/Automated_Readability_Index&gt;"	| score dict |	score := self automatedReadabilityIndexScoreForString: aString.	dict := Dictionary new.	dict at: 'Score' put: score.	dict at: 'Ages' put: (self automatedReadabilityIndexAgesForScore: score).	dict at: 'U.S.A. School Level' put: (self automatedReadabilityIndexGradeLevelForScore: score).	^ dict</body><body package="Readability">colemanLiauIndexForString: aString	"Coleman–Liau Index &lt;http://en.wikipedia.org/wiki/Coleman%E2%80%93Liau_index&gt;"	| reachability wordsFound sentencesFound alphanumCharsFound score |	reachability := self new.	wordsFound := (reachability wordsInString: aString) size.	sentencesFound := reachability sentenceCountInString: aString.	alphanumCharsFound := reachability alphanumericCharactersInString: aString.	score := 5.88 * (alphanumCharsFound / wordsFound)		- (0.296 * (sentencesFound / wordsFound)) - 15.8 asFloat.	^ score roundTo: 0.1</body><body package="Readability">examples	| string dict |	string := 'The Australian platypus is seemingly a hybrid of a mammal and reptilian creature.'.	dict := Dictionary new.	dict at: 'Automated Readability Index' put: (self automatedReadabilityIndexForString: string).	dict at: 'Coleman–Liau Index' put: (self colemanLiauIndexForString: string).	dict at: 'Flesch-Kincaid Grade Level' put: (self fleschKincaidGradeLevelForString: string).	dict at: 'Flesch Reading Ease' put: (self fleschReadingEaseForString: string).	dict at: 'Gunning Fog Index' put: (self gunningFogIndexForString: string).	dict at: 'SMOG Grade' put: (self smogGradeForString: string).	dict inspect</body><body package="Readability">fleschKincaidGradeLevelForString: aString	"Flesch-Kincaid Grade Level &lt;http://en.wikipedia.org/wiki/Flesch-Kincaid_readability_tests&gt;"	| reachability totalWords totalSentences alphanumeric totalSyllables score |	reachability := self new.	totalWords := (reachability wordsInString: aString) size.	totalSentences := reachability sentenceCountInString: aString.	alphanumeric := reachability alphanumericSentencesInString: aString.	totalSyllables := reachability syllablesInString: alphanumeric.	score := 0.39 * (totalWords / totalSentences)		+ (11.8 * (totalSyllables / totalWords) - 15.59).	^ score roundTo: 0.1</body><body package="Readability">fleschReadingEaseForString: aString	"Flesch Reading Ease &lt;http://en.wikipedia.org/wiki/Flesch-Kincaid_readability_tests&gt;"	| score dict |	score := Readability fleschReadingEaseScoreForString: aString.	dict := Dictionary new.	dict at: 'Score' put: score.	dict at: 'U.S.A. School Level' put: (Readability fleschReadingEaseGradeLevelForScore: score).	dict at: 'Notes' put: (Readability fleschReadingEaseNotesForScore: score).	^ dict</body><body package="Readability">gunningFogIndexForString: aString	"Gunning Fog Index &lt;http://en.wikipedia.org/wiki/Gunning_fog_index&gt;"	| reachability totalWords totalSentences complexWords score |	reachability := self new.	totalWords := (reachability wordsInString: aString) size.	totalSentences := reachability sentenceCountInString: aString.	complexWords := reachability complexWordsInString: aString.	score := 0.4 * (totalWords / totalSentences + (100.0 * (complexWords / totalWords))) asFloat.	^ score roundTo: 0.1</body><body package="Readability">smogGradeForString: aString	"SMOG Grade &lt;http://en.wikipedia.org/wiki/SMOG&gt;"	| reachability totalSentences totalPolysyllables score |	reachability := self new.	totalSentences := reachability sentenceCountInString: aString.	totalPolysyllables := reachability polysyllableWordsInString: aString excludeCommonSuffixes: false.	score := 1.043 * (totalPolysyllables * (30 / totalSentences) + 3.1291) sqrt.	^ score roundTo: 0.1</body></methods><do-it>"Imported Classes:"</do-it><do-it>self error: 'Attempting to file-in parcel imports.  Choose terminate or close'</do-it><class><name>Object</name><environment>Core</environment><super></super><private>false</private><indexed-type>none</indexed-type><inst-vars></inst-vars><class-inst-vars></class-inst-vars><imports></imports><category>Kernel-Objects</category><attributes><package>Kernel-Objects</package></attributes></class><class><name>TestCase</name><environment>SUnit</environment><super>Core.Object</super><private>false</private><indexed-type>none</indexed-type><inst-vars>testSelector </inst-vars><class-inst-vars></class-inst-vars><imports></imports><category>SUnit</category><attributes><package>SUnitToo</package></attributes></class></st-source>