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java.lang.Objecttoken.tokenizer.StringTokenizer
token.tokenizer.ABCTokenizer
public class ABCTokenizer
Tokenizer for the abc music language. getNextToken() returns next Token in
stream. Does not recognize all possible language constructs and symbols
(returned as "?" token).
References:
java.util.regex.Pattern for regex guide
ASCII table for codes
abc music standard 1.6
Field Summary | |
---|---|
static java.lang.String |
ACCIDENTALS
Allowable note accidentals |
private java.util.Map<java.lang.String,java.lang.String> |
keywords1
maps regex to their ASCII string counterparts. |
private java.util.Map<java.lang.String,java.lang.String> |
keywords2
keywords2 is searched second |
private java.util.Vector<java.util.Map<java.lang.String,java.lang.String>> |
keywordsVector
Ordered sets of keywords to check. |
private java.util.Stack<Token> |
stack
Push-back stack for tokens. |
private ITokenFactory |
tokFac
Factory for the tokens |
Fields inherited from class token.tokenizer.StringTokenizer |
---|
_fileReader, _st |
Constructor Summary | |
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ABCTokenizer(java.lang.String inputFileName)
Constructor for the class |
Method Summary | |
---|---|
Token |
getNextToken()
Return the next token, either from the stream or the last token if it was pushed back |
Token |
makeNextToken()
Parse the strings down from the getNextStringToken further, separating out the abc keywords into tokens. |
private java.lang.String |
parseNote(java.lang.String sTok)
Returns the first note string in the given string. |
private java.lang.String |
parseQuote(java.lang.String acc,
java.lang.String sTok)
Returns the rest of a string, incl. |
void |
putBack(Token t)
Put the previously consumed token back into the token stream. |
Methods inherited from class token.tokenizer.StringTokenizer |
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getNextStringToken, putStringBack |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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private java.util.Map<java.lang.String,java.lang.String> keywords1
private java.util.Map<java.lang.String,java.lang.String> keywords2
private java.util.Vector<java.util.Map<java.lang.String,java.lang.String>> keywordsVector
private ITokenFactory tokFac
private java.util.Stack<Token> stack
public static final java.lang.String ACCIDENTALS
Constructor Detail |
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public ABCTokenizer(java.lang.String inputFileName) throws java.io.FileNotFoundException
inputFileName
- File to tokenize
java.io.FileNotFoundException
Method Detail |
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public Token getNextToken()
getNextToken
in interface ITokenizer
public void putBack(Token t)
ITokenizer
putBack
in interface ITokenizer
public Token makeNextToken()
private java.lang.String parseNote(java.lang.String sTok)
sTok
- The string to parse
private java.lang.String parseQuote(java.lang.String acc, java.lang.String sTok)
acc
- Accumulated result stringsTok
- the current string token
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