Package com.ibm.icu.impl.coll

Class CollationRuleParser

java.lang.Object

com.ibm.icu.impl.coll.CollationRuleParser

public final class CollationRuleParser
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static interface	CollationRuleParser.Importer
(package private) static enum	CollationRuleParser.Position	Special reset positions.
(package private) static class	CollationRuleParser.Sink

Field Summary

Fields

Modifier and Type	Field	Description
private final CollationData	baseData
private static final String	BEFORE
private static final String[]	gSpecialReorderCodes
private CollationRuleParser.Importer	importer
private Normalizer2	nfc
private Normalizer2	nfd
private static final int	OFFSET_SHIFT
(package private) static final char	POS_BASE	Base for the second character of contractions that encode special reset positions.
(package private) static final char	POS_LEAD	First character of contractions that encode special reset positions.
(package private) static final CollationRuleParser.Position[]	POSITION_VALUES
private static final String[]	positions
private final StringBuilder	rawBuilder
private int	ruleIndex
private String	rules
private CollationSettings	settings
private CollationRuleParser.Sink	sink
private static final int	STARRED_FLAG
private static final int	STRENGTH_MASK	UCOL_PRIMARY=0 ..
private static final int	U_PARSE_CONTEXT_LEN
private static final int	UCOL_DEFAULT
private static final int	UCOL_OFF
private static final int	UCOL_ON

Constructor Summary

Constructors

Constructor	Description
CollationRuleParser(CollationData base)	Constructor.

Method Summary

Modifier and Type	Method	Description
private String	appendErrorContext(String reason)
private static int	getOnOffValue(String s)
static int	getReorderCode(String word)	Gets a script or reorder code from its string representation.
private static final boolean	isSurrogate(int c)
private static boolean	isSyntaxChar(int c)	ASCII [:P:] and [:S:]: [!-/ :-@ [-` {-~]
private ParseException	makeParseException(String reason)
private void	parse(String ruleString)
(package private) void	parse(String ruleString, CollationSettings outSettings)
private int	parseRelationOperator()
private void	parseRelationStrings(int strength, int i)
private void	parseReordering(CharSequence raw)
private int	parseResetAndPosition()
private void	parseRuleChain()
private void	parseSetting()
private int	parseSpecialPosition(int i, StringBuilder str)	Sets str to a contraction of U+FFFE and (U+2800 + Position).
private void	parseStarredCharacters(int strength, int i)
private int	parseString(int i, StringBuilder raw)
private int	parseTailoringString(int i, StringBuilder raw)
private int	parseUnicodeSet(int i, UnicodeSet set)
private int	readWords(int i, StringBuilder raw)
(package private) void	setImporter(CollationRuleParser.Importer importerAlias)	Sets the pointer to an Importer object.
private void	setParseError(String reason)
private void	setParseError(String reason, Exception e)
(package private) void	setSink(CollationRuleParser.Sink sinkAlias)	Sets the pointer to a Sink object.
private int	skipComment(int i)
private int	skipWhiteSpace(int i)

Methods inherited from class java.lang.Object

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

Field Details

POSITION_VALUES

static final CollationRuleParser.Position[] POSITION_VALUES

POS_LEAD

static final char POS_LEAD

First character of contractions that encode special reset positions. U+FFFE cannot be tailored via rule syntax. The second contraction character is POS_BASE + Position.

See Also:

• Constant Field Values

POS_BASE

static final char POS_BASE

Base for the second character of contractions that encode special reset positions. Braille characters U+28xx are printable and normalization-inert.

See Also:

• POS_LEAD
• Constant Field Values

UCOL_DEFAULT

private static final int UCOL_DEFAULT

See Also:

• Constant Field Values

UCOL_OFF

private static final int UCOL_OFF

See Also:

• Constant Field Values

UCOL_ON

private static final int UCOL_ON

See Also:

• Constant Field Values

STRENGTH_MASK

private static final int STRENGTH_MASK

UCOL_PRIMARY=0 .. UCOL_IDENTICAL=15

See Also:

• Constant Field Values

STARRED_FLAG

private static final int STARRED_FLAG

See Also:

• Constant Field Values

OFFSET_SHIFT

private static final int OFFSET_SHIFT

See Also:

• Constant Field Values

BEFORE

private static final String BEFORE

See Also:

• Constant Field Values

rawBuilder

private final StringBuilder rawBuilder

positions

private static final String[] positions

gSpecialReorderCodes

private static final String[] gSpecialReorderCodes

U_PARSE_CONTEXT_LEN

private static final int U_PARSE_CONTEXT_LEN

See Also:

• Constant Field Values

nfd

private Normalizer2 nfd

nfc

private Normalizer2 nfc

rules

private String rules

baseData

private final CollationData baseData

settings

private CollationSettings settings

sink

private CollationRuleParser.Sink sink

importer

private CollationRuleParser.Importer importer

ruleIndex

private int ruleIndex

Constructor Details

CollationRuleParser

CollationRuleParser(CollationData base)

Constructor. The Sink must be set before parsing. The Importer can be set, otherwise [import locale] syntax is not supported.

Method Details

setSink

void setSink(CollationRuleParser.Sink sinkAlias)

Sets the pointer to a Sink object. The pointer is aliased: Pointer copy without cloning or taking ownership.

setImporter

void setImporter(CollationRuleParser.Importer importerAlias)

Sets the pointer to an Importer object. The pointer is aliased: Pointer copy without cloning or taking ownership.

parse

void parse(String ruleString,
 CollationSettings outSettings)
    throws ParseException

Throws:

ParseException

parse

private void parse(String ruleString)
            throws ParseException

Throws:

ParseException

parseRuleChain

private void parseRuleChain()
                     throws ParseException

Throws:

ParseException

parseResetAndPosition

private int parseResetAndPosition()
                           throws ParseException

Throws:

ParseException

parseRelationOperator

private int parseRelationOperator()

parseRelationStrings

private void parseRelationStrings(int strength,
 int i)
                           throws ParseException

Throws:

ParseException

parseStarredCharacters

private void parseStarredCharacters(int strength,
 int i)
                             throws ParseException

Throws:

ParseException

parseTailoringString

private int parseTailoringString(int i,
 StringBuilder raw)
                          throws ParseException

Throws:

ParseException

parseString

private int parseString(int i,
 StringBuilder raw)
                 throws ParseException

Throws:

ParseException

isSurrogate

private static final boolean isSurrogate(int c)

parseSpecialPosition

private int parseSpecialPosition(int i,
 StringBuilder str)
                          throws ParseException

Sets str to a contraction of U+FFFE and (U+2800 + Position).

Returns:

rule index after the special reset position

Throws:

ParseException

parseSetting

private void parseSetting()
                   throws ParseException

Throws:

ParseException

parseReordering

private void parseReordering(CharSequence raw)
                      throws ParseException

Throws:

ParseException

getReorderCode

public static int getReorderCode(String word)

Gets a script or reorder code from its string representation.

Returns:

the script/reorder code, or -1 if not recognized

getOnOffValue

private static int getOnOffValue(String s)

parseUnicodeSet

private int parseUnicodeSet(int i,
 UnicodeSet set)
                     throws ParseException

Throws:

ParseException

readWords

private int readWords(int i,
 StringBuilder raw)

skipComment

private int skipComment(int i)

setParseError

private void setParseError(String reason)
                    throws ParseException

Throws:

ParseException

setParseError

private void setParseError(String reason,
 Exception e)
                    throws ParseException

Throws:

ParseException

makeParseException

private ParseException makeParseException(String reason)

appendErrorContext

private String appendErrorContext(String reason)

isSyntaxChar

private static boolean isSyntaxChar(int c)

ASCII [:P:] and [:S:]: [!-/ :-@ [-` {-~]

skipWhiteSpace

private int skipWhiteSpace(int i)