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org.apache.xerces.utils.regex
Class RegexParser  

java.lang.Object
  org.apache.xerces.utils.regex.RegexParser

Direct Known Subclasses:

ParserForXMLSchema

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class RegexParser

extends java.lang.Object

A Regular Expression Parser.

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Nested Class Summary
(package private) static class	RegexParser.ReferencePosition

 

Field Summary
(package private)  int	chardata
(package private)  int	context
(package private)  boolean	hasBackReferences
(package private)  int	nexttoken
(package private)  int	offset
(package private)  int	options
(package private)  int	parennumber
(package private)  java.util.Vector	references
(package private)  java.lang.String	regex
(package private)  int	regexlen
(package private)  java.util.ResourceBundle	resources
protected static int	S_INBRACKETS
protected static int	S_INXBRACKETS
protected static int	S_NORMAL
(package private) static int	T_BACKSOLIDUS
(package private) static int	T_CARET
(package private) static int	T_CHAR
(package private) static int	T_COMMENT
(package private) static int	T_CONDITION
(package private) static int	T_DOLLAR
(package private) static int	T_DOT
(package private) static int	T_EOF
(package private) static int	T_INDEPENDENT
(package private) static int	T_LBRACKET
(package private) static int	T_LOOKAHEAD
(package private) static int	T_LOOKBEHIND
(package private) static int	T_LPAREN
(package private) static int	T_LPAREN2
(package private) static int	T_MODIFIERS
(package private) static int	T_NEGATIVELOOKAHEAD
(package private) static int	T_NEGATIVELOOKBEHIND
(package private) static int	T_OR
(package private) static int	T_PLUS
(package private) static int	T_POSIX_CHARCLASS_START
(package private) static int	T_QUESTION
(package private) static int	T_RPAREN
(package private) static int	T_SET_OPERATIONS
(package private) static int	T_STAR
(package private) static int	T_XMLSCHEMA_CC_SUBTRACTION

 

Constructor Summary

RegexParser()

RegexParser(java.util.Locale locale)

 

Method Summary
(package private)  boolean	checkQuestion(int off)
(package private)  int	decodeEscaped()
(package private)  ParseException	ex(java.lang.String key, int loc)
(package private)  Token	getTokenForShorthand(int ch)
private static int	hexChar(int ch)
private  boolean	isSet(int flag)
(package private)  void	next()
(package private)  Token	parse(java.lang.String regex, int options)
(package private)  Token	parseAtom()           atom ::= char | '.' | char-class | '(' regex ')' | '(?:' regex ')' | '\' [0-9] | '\w' | '\W' | '\d' | '\D' | '\s' | '\S' | category-block | '(?>' regex ')' char ::= '\\' | '\' [efnrt] | bmp-code | character-1
private  RangeToken	parseCharacterClass_old(boolean useNrange)
protected  RangeToken	parseCharacterClass(boolean useNrange)           char-class ::= '[' ( '^'? range ','?)+ ']' range ::= '\d' | '\w' | '\s' | category-block | range-char | range-char '-' range-char range-char ::= '\[' | '\]' | '\\' | '\' [,-efnrtv] | bmp-code | character-2 bmp-code ::= '\' 'u' [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F]
(package private)  Token	parseFactor()           factor ::= ('^' | '$' | '\A' | '\Z' | '\z' | '\b' | '\B' | '\<' | '\>' | atom (('*' | '+' | '?' | minmax ) '?'? )?) | '(?=' regex ')' | '(?!' regex ')' | '(?<=' regex ')' | '(?<!' regex ')' | '(?#' [^)]* ')' minmax ::= '{' min (',' max?)? '}' min ::= [0-9]+ max ::= [0-9]+
(package private)  Token	parseRegex()           regex ::= term (`|` term)* term ::= factor+ factor ::= ('^' | '$' | '\A' | '\Z' | '\z' | '\b' | '\B' | '\<' | '\>' | atom (('*' | '+' | '?' | minmax ) '?'? )?) | '(?=' regex ')' | '(?!' regex ')' | '(?<=' regex ')' | '(?<!' regex ')' atom ::= char | '.' | range | '(' regex ')' | '(?:' regex ')' | '\' [0-9] | '\w' | '\W' | '\d' | '\D' | '\s' | '\S' | category-block
protected  RangeToken	parseSetOperations()           '(?[' ...
(package private)  Token	parseTerm()           term ::= factor+
(package private)  Token	processBackreference()
(package private)  Token	processBacksolidus_A()
(package private)  Token	processBacksolidus_b()
(package private)  Token	processBacksolidus_B()
(package private)  Token	processBacksolidus_c()
(package private)  Token	processBacksolidus_C()
(package private)  Token	processBacksolidus_g()
(package private)  Token	processBacksolidus_gt()
(package private)  Token	processBacksolidus_i()
(package private)  Token	processBacksolidus_I()
(package private)  Token	processBacksolidus_lt()
protected  RangeToken	processBacksolidus_pP(int c)
(package private)  Token	processBacksolidus_X()
(package private)  Token	processBacksolidus_z()
(package private)  Token	processBacksolidus_Z()
(package private)  Token	processCaret()
(package private)  int	processCIinCharacterClass(RangeToken tok, int c)
(package private)  Token	processCondition()
(package private)  Token	processDollar()
(package private)  Token	processIndependent()
(package private)  Token	processLookahead()
(package private)  Token	processLookbehind()
(package private)  Token	processModifiers()
(package private)  Token	processNegativelookahead()
(package private)  Token	processNegativelookbehind()
(package private)  Token	processParen()
(package private)  Token	processParen2()
(package private)  Token	processPlus(Token tok)
(package private)  Token	processQuestion(Token tok)
(package private)  Token	processStar(Token tok)
(package private)  int	read()
protected  void	setContext(int con)
void	setLocale(java.util.Locale locale)

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

T_CHAR

static final int T_CHAR

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Constant Field Values

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T_EOF

static final int T_EOF

See Also:

Constant Field Values

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T_OR

static final int T_OR

See Also:

Constant Field Values

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T_STAR

static final int T_STAR

See Also:

Constant Field Values

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T_PLUS

static final int T_PLUS

See Also:

Constant Field Values

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T_QUESTION

static final int T_QUESTION

See Also:

Constant Field Values

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T_LPAREN

static final int T_LPAREN

See Also:

Constant Field Values

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T_RPAREN

static final int T_RPAREN

See Also:

Constant Field Values

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T_DOT

static final int T_DOT

See Also:

Constant Field Values

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T_LBRACKET

static final int T_LBRACKET

See Also:

Constant Field Values

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T_BACKSOLIDUS

static final int T_BACKSOLIDUS

See Also:

Constant Field Values

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T_CARET

static final int T_CARET

See Also:

Constant Field Values

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T_DOLLAR

static final int T_DOLLAR

See Also:

Constant Field Values

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T_LPAREN2

static final int T_LPAREN2

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Constant Field Values

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T_LOOKAHEAD

static final int T_LOOKAHEAD

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Constant Field Values

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T_NEGATIVELOOKAHEAD

static final int T_NEGATIVELOOKAHEAD

See Also:

Constant Field Values

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T_LOOKBEHIND

static final int T_LOOKBEHIND

See Also:

Constant Field Values

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T_NEGATIVELOOKBEHIND

static final int T_NEGATIVELOOKBEHIND

See Also:

Constant Field Values

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T_INDEPENDENT

static final int T_INDEPENDENT

See Also:

Constant Field Values

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T_SET_OPERATIONS

static final int T_SET_OPERATIONS

See Also:

Constant Field Values

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T_POSIX_CHARCLASS_START

static final int T_POSIX_CHARCLASS_START

See Also:

Constant Field Values

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T_COMMENT

static final int T_COMMENT

See Also:

Constant Field Values

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T_MODIFIERS

static final int T_MODIFIERS

See Also:

Constant Field Values

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T_CONDITION

static final int T_CONDITION

See Also:

Constant Field Values

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T_XMLSCHEMA_CC_SUBTRACTION

static final int T_XMLSCHEMA_CC_SUBTRACTION

See Also:

Constant Field Values

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offset

int offset

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regex

java.lang.String regex

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regexlen

int regexlen

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options

int options

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resources

java.util.ResourceBundle resources

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chardata

int chardata

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nexttoken

int nexttoken

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S_NORMAL

protected static final int S_NORMAL

See Also:

Constant Field Values

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S_INBRACKETS

protected static final int S_INBRACKETS

See Also:

Constant Field Values

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S_INXBRACKETS

protected static final int S_INXBRACKETS

See Also:

Constant Field Values

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context

int context

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parennumber

int parennumber

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hasBackReferences

boolean hasBackReferences

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references

java.util.Vector references

Constructor Detail

RegexParser

public RegexParser()

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RegexParser

public RegexParser(java.util.Locale locale)

Method Detail

setLocale

public void setLocale(java.util.Locale locale)

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ex

final ParseException ex(java.lang.String key,
                        int loc)

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isSet

private final boolean isSet(int flag)

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parse

Token parse(java.lang.String regex,
            int options)
      throws ParseException

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setContext

protected final void setContext(int con)

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read

final int read()

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next

final void next()

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parseRegex

Token parseRegex()
           throws ParseException

regex ::= term (`|` term)* term ::= factor+ factor ::= ('^' | '$' | '\A' | '\Z' | '\z' | '\b' | '\B' | '\<' | '\>' | atom (('*' | '+' | '?' | minmax ) '?'? )?) | '(?=' regex ')' | '(?!' regex ')' | '(?<=' regex ')' | '(?<!' regex ')' atom ::= char | '.' | range | '(' regex ')' | '(?:' regex ')' | '\' [0-9] | '\w' | '\W' | '\d' | '\D' | '\s' | '\S' | category-block

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parseTerm

Token parseTerm()
          throws ParseException

term ::= factor+

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processCaret

Token processCaret()
             throws ParseException

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processDollar

Token processDollar()
              throws ParseException

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processLookahead

Token processLookahead()
                 throws ParseException

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processNegativelookahead

Token processNegativelookahead()
                         throws ParseException

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processLookbehind

Token processLookbehind()
                  throws ParseException

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processNegativelookbehind

Token processNegativelookbehind()
                          throws ParseException

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processBacksolidus_A

Token processBacksolidus_A()
                     throws ParseException

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processBacksolidus_Z

Token processBacksolidus_Z()
                     throws ParseException

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processBacksolidus_z

Token processBacksolidus_z()
                     throws ParseException

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processBacksolidus_b

Token processBacksolidus_b()
                     throws ParseException

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processBacksolidus_B

Token processBacksolidus_B()
                     throws ParseException

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processBacksolidus_lt

Token processBacksolidus_lt()
                      throws ParseException

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processBacksolidus_gt

Token processBacksolidus_gt()
                      throws ParseException

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processStar

Token processStar(Token tok)
            throws ParseException

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processPlus

Token processPlus(Token tok)
            throws ParseException

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processQuestion

Token processQuestion(Token tok)
                throws ParseException

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checkQuestion

boolean checkQuestion(int off)

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processParen

Token processParen()
             throws ParseException

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processParen2

Token processParen2()
              throws ParseException

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processCondition

Token processCondition()
                 throws ParseException

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processModifiers

Token processModifiers()
                 throws ParseException

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processIndependent

Token processIndependent()
                   throws ParseException

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processBacksolidus_c

Token processBacksolidus_c()
                     throws ParseException

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processBacksolidus_C

Token processBacksolidus_C()
                     throws ParseException

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processBacksolidus_i

Token processBacksolidus_i()
                     throws ParseException

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processBacksolidus_I

Token processBacksolidus_I()
                     throws ParseException

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processBacksolidus_g

Token processBacksolidus_g()
                     throws ParseException

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processBacksolidus_X

Token processBacksolidus_X()
                     throws ParseException

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processBackreference

Token processBackreference()
                     throws ParseException

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parseFactor

Token parseFactor()
            throws ParseException

factor ::= ('^' | '$' | '\A' | '\Z' | '\z' | '\b' | '\B' | '\<' | '\>' | atom (('*' | '+' | '?' | minmax ) '?'? )?) | '(?=' regex ')' | '(?!' regex ')' | '(?<=' regex ')' | '(?<!' regex ')' | '(?#' [^)]* ')' minmax ::= '{' min (',' max?)? '}' min ::= [0-9]+ max ::= [0-9]+

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parseAtom

Token parseAtom()
          throws ParseException

atom ::= char | '.' | char-class | '(' regex ')' | '(?:' regex ')' | '\' [0-9] | '\w' | '\W' | '\d' | '\D' | '\s' | '\S' | category-block | '(?>' regex ')' char ::= '\\' | '\' [efnrt] | bmp-code | character-1

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processBacksolidus_pP

protected RangeToken processBacksolidus_pP(int c)
                                    throws ParseException

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processCIinCharacterClass

int processCIinCharacterClass(RangeToken tok,
                              int c)

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parseCharacterClass

protected RangeToken parseCharacterClass(boolean useNrange)
                                  throws ParseException

char-class ::= '[' ( '^'? range ','?)+ ']' range ::= '\d' | '\w' | '\s' | category-block | range-char | range-char '-' range-char range-char ::= '\[' | '\]' | '\\' | '\' [,-efnrtv] | bmp-code | character-2 bmp-code ::= '\' 'u' [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F]

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parseCharacterClass_old

private RangeToken parseCharacterClass_old(boolean useNrange)
                                    throws ParseException

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parseSetOperations

protected RangeToken parseSetOperations()
                                 throws ParseException

'(?[' ... ']' (('-' | '+' | '&') '[' ... ']')? ')'

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getTokenForShorthand

Token getTokenForShorthand(int ch)

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decodeEscaped

int decodeEscaped()
            throws ParseException

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hexChar

private static final int hexChar(int ch)

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