Example Character addMethod 013

 

 

Description

This example defines a method named Vowel that is invoked when the Character type receives an isVowel message. The Vowel method method converts the Character Value, to the English word "Yes" or to the English word "No" depending upon whether or not the character is a vowel.

 

Details

First Define the Vowel method:

(defun Vowel(c) (if (isMember c #(#\a #\e #\i #\o #\u #\A #\E #\I #\O #\U)) then "Yes" else "No") ) Returns: #<Lambda 123456>

Install the Vowel method and the message named isVowel in the Character Methods Dictionary.

(addMethod Character: isVowel: Vowel) Returns: #<Dictionary 123456>

To invoke the Lambda that responds to the isVowel message, issue the following statement:

(send isVowel: #\c) Returns: No

Alternatively, the Lambda may be invoked using the following syntax:

(isVowel: #\c) Returns: No

Notes and Hints

To view the entry in the methods Dictionary created by the addMethod function, you can use the method name to access the directory entry by

#<Dictionary 123456>[methodName:] or

To determine the number of assigned methods:

(length (methodsOf Boolean: ))

To access the nth method name:

(methodsOf Boolean: )[n 0]

 

Related Examples

Here are examples of the addMethod function at work.

BitVector addMethod 023 Boolean addMethod 011 Boolean addMethod 012 Boolean send 010
Brick addMethod 008 Brick send 027 Character addMethod 013 CpxVector addMethod 028
Date addMethod 015 Date addMethod 016 Dictionary addMethod 005 Directory addMethod 006
FltVector addMethod 019 Function addMethod 017 Function addMethod 018 IntVector addMethod 020
List addMethod 025 List send 020 Matrix addMethod 008 NumMatrix addMethod 027
NumMatrix defmethod 024 NumVector addMethod 021 Number addMethod 014 ObjVector addMethod 022
ObjectRepository addMethod 026 ObjectRepository send 026 Pair addMethod 024 ShortVector addMethod 021
String addMethod 001 Structure addMethod 003 Structure addMethod 004 Symbol addMethod 002
Vector addMethod 007 Void addMethod 009 Void addMethod 010 Void defmethod 010

 

Function Links

Here is the link to the current function used in this example.

addMethod

Here are a number of links to other related functions.

defmethod(#void) send(#void) methodsOf(#void)

 

Argument Types

Here are the links to the data types of the arguments used in this example.

Character Symbol Dictionary

Here are a number of links to examples having similar argument types.

BitVector addMethod 023 BitVector defmethod 020 BitVector methodsOf 021 BitVector send 018
Boolean addMethod 011 Boolean addMethod 012 Boolean defmethod 012 Boolean methodsOf 012
Boolean send 010 Brick addMethod 008 Brick defmethod 025 Brick methodsOf 024
Brick send 027 ByteVector isCharAlphabetic 003 ByteVector isCharAlphanumeric 003 ByteVector isCharLowercase 003
ByteVector isCharName 003 ByteVector isCharNumeric 003 ByteVector isCharUppercase 003 ByteVector isCharWhitespace 003
Character addMethod 013 Character cadd 001 Character ccompareEQ 001 Character ccompareGE 001
Character ccompareGT 001 Character ccompareLE 001 Character ccompareLT 001 Character ccompareNE 001
Character cdiv 001 Character character 001 Character cmod 001 Character cmul 001
Character compare 010 Character compareEQ 010 Character compareGE 010 Character compareGT 010
Character compareLE 010 Character compareLT 010 Character compareNE 010 Character comparison 010
Character csub 001 Character defmethod 013 Character isEqual 008 Character isIdentical 008
Character isType 012 Character methodsOf 013 Character send 011 Character setq 017
Character sizeof 010 Character type 012 Context debug 001 Context getGlobalValue 001
Context getSymbolTable 001 Context globalBinding 001 CpxVector addMethod 028 CpxVector send 028
Date addMethod 015 Date addMethod 016 Date defmethod 015 Date isDate 001
Date methodsOf 015 Date send 013 Dictionary addMethod 005 Dictionary binarySearch 002
Dictionary cdr 003 Dictionary compare 004 Dictionary compareEQ 004 Dictionary compareGE 004
Dictionary compareGT 004 Dictionary compareLE 004 Dictionary compareLT 004 Dictionary compareNE 004
Dictionary comparison functions 004 Dictionary copy 002 Dictionary count 002 Dictionary defMethod 006
Dictionary delete 003 Dictionary delete 004 Dictionary insert 002 Dictionary inside 002
Dictionary isAtom 002 Dictionary isBound 002 Dictionary isDictionary 001 Dictionary isEqual 002
Dictionary isIdentical 002 Dictionary isInside 002 Dictionary isMember 002 Dictionary isObject 004
Dictionary isType 006 Dictionary length 005 Dictionary makeDictionary 001 Dictionary map 002
Dictionary mapc 002 Dictionary member 002 Dictionary methodsOf 007 Dictionary new 004
Dictionary objectToDictionary 001 Dictionary objectToDictionary 002 Dictionary objectToDictionary 003 Dictionary objectToDictionary 004
Dictionary ref 007 Dictionary ref 008 Dictionary ref 009 Dictionary refAttributes 002
Dictionary refValues 002 Dictionary remove 002 Dictionary resize 002 Dictionary send 004
Dictionary setAttributes 002 Dictionary setCdr 001 Dictionary setCdr 002 Dictionary setq 007
Dictionary setq 008 Dictionary setq 009 Dictionary sizeof 004 Dictionary sort 003
Dictionary sort 004 Dictionary sort 005 Dictionary type 007 Directory addMethod 006
Directory defMethod 007 Directory delete 006 Directory insert 003 Directory inside 003
Directory isBound 003 Directory isDirectory 001 Directory isInside 003 Directory isMember 003
Directory member 002 Directory methodsOf 008 Directory new 005 Directory new 006
Directory ref 010 Directory ref 011 Directory ref 012 Directory refAttributes 003
Directory refValues 003 Directory remove 003 Directory send 005 Directory setAttributes 003
Directory setq 010 Directory setq 011 Directory sort 008 Directory sort 009
FltVector addMethod 019 FltVector defmethod 017 FltVector delete 009 FltVector insert 005
FltVector methodsOf 017 FltVector send 015 Function addMethod 017 Function addMethod 018
Function defmethod 016 Function methodsOf 016 Function send 014 IntVector addMethod 020
IntVector defmethod 018 IntVector delete 010 IntVector insert 006 IntVector methodsOf 018
IntVector send 016 Lambda compareLE 008 Lambda debug 001 Lambda define(macro) 001
Lambda defmacro 001 Lambda defmacro 002 Lambda exportTab 001 Lambda globalBinding 001
Lambda importTab 001 Lambda isLambda 001 Lambda send 008 Lambda send 009
List addMethod 025 List defmethod 022 List methodsOf 022 List send 020
Matrix addMethod 008 Matrix defMethod 009 Matrix delete 009 Matrix insert 005
Matrix methodsOf 010 Matrix send 008 NumMatrix addMethod 027 NumMatrix defmethod 024
NumMatrix delete 014 NumMatrix insert 009 NumMatrix methodsOf 024 NumMatrix send 027
NumVector addMethod 021 NumVector defmethod 019 NumVector delete 011 NumVector insert 007
NumVector methodsOf 019 NumVector send 017 Number addMethod 014 Number defmethod 014
Number methodsOf 014 Number send 012 ObjVector addMethod 022 ObjVector delete 012
ObjVector insert 008 ObjectRepository addMethod 026 ObjectRepository defmethod 023 ObjectRepository delete 013
ObjectRepository methodsOf 023 ObjectRepository send 026 Pair addMethod 024 Pair defmethod 021
Pair methodsOf 021 Pair send 019 PcodeVector methodsOf 020 ShortVector addMethod 021
ShortVector defmethod 019 ShortVector delete 011 ShortVector insert 007 ShortVector methodsOf 019
ShortVector send 017 String addMethod 001 String defMethod 001 String defMethod 002
String downcase 001 String fileRead 001 String fileRead 002 String fileReadRecord 001
String fileWrite 001 String isChar 001 String isCharAlphabetic 001 String isCharAlphanumeric 001
String isCharLowercase 001 String isCharName 001 String isCharNumeric 001 String isCharUppercase 001
String isCharWhitespace 001 String isEqual 001 String isEqual 002 String isObject 001
String isString 001 String isText 001 String isType 001 String isType 002
String isType 003 String methodsOf 001 String methodsOf 002 String methodsOf 003
String parse 001 String send 001 String setq 001 String sizeof 001
String string 001 String string 002 String string 003 String stringToBVector 001
String stringToBVector 002 String stringToBVector 003 String stringToVector 001 String stringToVector 002
String stringToVector 003 String stringToVector 004 String type 001 String upcase 001
String upcase 002 String upcase 003 Structure addMethod 003 Structure addMethod 004
Structure binaryInsert 001 Structure binarySearch 001 Structure defmethod 004 Structure defmethod 005
Structure delete 001 Structure delete 002 Structure insert 001 Structure inside 001
Structure isBound 001 Structure isInside 001 Structure isMember 001 Structure member 001
Structure methodsOf 005 Structure new 003 Structure ref 004 Structure ref 006
Structure refAttributes 001 Structure refValues 001 Structure remove 001 Structure send 003
Structure setAttributes 001 Structure setq 003 Structure setq 004 Structure setq 005
Structure setq 006 Structure uniqueInsert 001 Structure uniqueInsert 002 Symbol *< 001
Symbol ++ 001 Symbol +< 001 Symbol -- 001 Symbol -< 001
Symbol /< 001 Symbol addMethod 002 Symbol append 003 Symbol compare 002
Symbol compareEQ 002 Symbol compareGE 002 Symbol compareGT 002 Symbol compareLE 002
Symbol compareLT 002 Symbol compareNE 002 Symbol comparison functions 002 Symbol defMethod 003
Symbol downcase 002 Symbol getGlobalValue 001 Symbol getGlobalValue 002 Symbol getSymbolTable 001
Symbol getSymbolTable 002 Symbol hashString 002 Symbol isCharAlphabetic 002 Symbol isCharAlphanumeric 002
Symbol isCharLowercase 002 Symbol isCharName 002 Symbol isCharNumeric 002 Symbol isCharUppercase 002
Symbol isCharWhitespace 002 Symbol isObject 002 Symbol isSymbol 001 Symbol isType 004
Symbol methodsOf 004 Symbol new 002 Symbol proplist 001 Symbol proprecord 001
Symbol putprop 001 Symbol ref 003 Symbol remProp 001 Symbol send 002
Symbol setq 001 Symbol setq 002 Symbol sizeof 002 Symbol symbol 001
Symbol symbol 002 Symbol type 002 Symbol upcase 004 Vector addMethod 007
Vector defmethod 008 Vector delete 007 Vector delete 008 Vector insert 004
Vector methodsOf 009 Vector send 006 Vector setAttributes 004 Vector setAttributes 005
Void addMethod 009 Void addMethod 010 Void defmethod 010 Void defmethod 011
Void methodsOf 011 Void send 009

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