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java.lang.ObjectJFlex.CharClasses
public class CharClasses
Field Summary | |
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static char |
maxChar
the largest character that can be used in char classes |
Constructor Summary | |
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CharClasses(int maxCharCode)
Constructs a new CharClass object that provides space for classes of characters from 0 to maxCharCode. |
Method Summary | |
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void |
check()
Check consistency of the stored classes [debug]. |
void |
dump()
Dump charclasses to the dump output stream |
int |
getClassCode(char letter)
Returns the code of the character class the specified character belongs to. |
int[] |
getClassCodes(java.util.Vector intervallVec)
Returns an array that contains the character class codes of all characters in the specified set of input characters. |
CharClassInterval[] |
getIntervals()
Returns an array of all CharClassIntervalls in this char class collection. |
char |
getMaxCharCode()
Returns the greatest Unicode value of the current input character set. |
int[] |
getNotClassCodes(java.util.Vector intervallVec)
Returns an array that contains the character class codes of all characters that are not in the specified set of input characters. |
int |
getNumClasses()
Returns the current number of character classes. |
void |
makeClass(char singleChar,
boolean caseless)
Creates a new character class for the single character singleChar . |
void |
makeClass(IntCharSet set,
boolean caseless)
Updates the current partition, so that the specified set of characters gets a new character class. |
void |
makeClass(java.lang.String str,
boolean caseless)
Creates a new character class for each character of the specified String. |
void |
makeClass(java.util.Vector v,
boolean caseless)
Updates the current partition, so that the specified set of characters gets a new character class. |
void |
makeClassNot(java.util.Vector v,
boolean caseless)
Updates the current partition, so that the set of all characters not contained in the specified set of characters gets a new character class. |
void |
setMaxCharCode(int charCode)
Sets the largest Unicode value of the current input character set. |
java.lang.String |
toString()
Return a string representation of the char classes stored in this class. |
java.lang.String |
toString(int theClass)
Return a string representation of one char class |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final char maxChar
Constructor Detail |
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public CharClasses(int maxCharCode)
maxCharCode
- the last character code to be
considered. (127 for 7bit Lexers,
255 for 8bit Lexers and 0xFFFF
for Unicode Lexers).Method Detail |
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public char getMaxCharCode()
public void setMaxCharCode(int charCode)
charCode
- the largest character code, used for the scanner
(i.e. %7bit, %8bit, %16bit etc.)public int getNumClasses()
public void makeClass(IntCharSet set, boolean caseless)
set
are not in the same
equivalence class with characters that are not elements of set
.
set
- the set of characters to distinguish from the restcaseless
- if true upper/lower/title case are considered equivalentpublic int getClassCode(char letter)
public void dump()
public java.lang.String toString(int theClass)
theClass
- the index of the class topublic java.lang.String toString()
toString
in class java.lang.Object
public void makeClass(char singleChar, boolean caseless)
singleChar
.
caseless
- if true upper/lower/title case are considered equivalentpublic void makeClass(java.lang.String str, boolean caseless)
caseless
- if true upper/lower/title case are considered equivalentpublic void makeClass(java.util.Vector v, boolean caseless)
v
are not in the same
equivalence class with characters that are not elements of the set v
.
v
- a Vector of Interval objects.
This Vector represents a set of characters. The set of characters is
the union of all intervals in the Vector.caseless
- if true upper/lower/title case are considered equivalentpublic void makeClassNot(java.util.Vector v, boolean caseless)
v
are not in the same
equivalence class with characters that are not elements of the set v
.
This method is equivalent to makeClass(v)
v
- a Vector of Interval objects.
This Vector represents a set of characters. The set of characters is
the union of all intervals in the Vector.caseless
- if true upper/lower/title case are considered equivalentpublic int[] getClassCodes(java.util.Vector intervallVec)
intervallVec
- a Vector of Intervals, the set of characters to get
the class codes for
public int[] getNotClassCodes(java.util.Vector intervallVec)
intervallVec
- a Vector of Intervals, the complement of the
set of characters to get the class codes for
public void check()
public CharClassInterval[] getIntervals()
result[i+1].start = result[i].end+1
Each CharClassInterval contains the number of the
char class it belongs to.
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