Package com.ibm.icu.impl.number.parse
Class CodePointMatcher
- java.lang.Object
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- com.ibm.icu.impl.number.parse.CodePointMatcher
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- All Implemented Interfaces:
NumberParseMatcher
public class CodePointMatcher extends java.lang.Object implements NumberParseMatcher
Matches a single code point, performing no other logic.
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Nested Class Summary
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Nested classes/interfaces inherited from interface com.ibm.icu.impl.number.parse.NumberParseMatcher
NumberParseMatcher.Flexible
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Field Summary
Fields Modifier and Type Field Description private int
cp
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Constructor Summary
Constructors Modifier Constructor Description private
CodePointMatcher(int cp)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static CodePointMatcher
getInstance(int cp)
boolean
match(StringSegment segment, ParsedNumber result)
Runs this matcher starting at the beginning of the given StringSegment.void
postProcess(ParsedNumber result)
Method called at the end of a parse, after all matchers have failed to consume any more chars.boolean
smokeTest(StringSegment segment)
Performs a fast "smoke check" for whether or not this matcher could possibly match against the given string segment.java.lang.String
toString()
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Method Detail
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getInstance
public static CodePointMatcher getInstance(int cp)
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match
public boolean match(StringSegment segment, ParsedNumber result)
Description copied from interface:NumberParseMatcher
Runs this matcher starting at the beginning of the given StringSegment. If this matcher finds something interesting in the StringSegment, it should update the offset of the StringSegment corresponding to how many chars were matched.- Specified by:
match
in interfaceNumberParseMatcher
- Parameters:
segment
- The StringSegment to match against. Matches always start at the beginning of the segment. The segment is guaranteed to contain at least one char.result
- The data structure to store results if the match succeeds.- Returns:
- Whether this matcher thinks there may be more interesting chars beyond the end of the string segment.
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smokeTest
public boolean smokeTest(StringSegment segment)
Description copied from interface:NumberParseMatcher
Performs a fast "smoke check" for whether or not this matcher could possibly match against the given string segment. The test should be as fast as possible but also as restrictive as possible. For example, matchers can maintain a UnicodeSet of all code points that count possibly start a match. Matchers should use theStringSegment.startsWith(int)
method in order to correctly handle case folding.- Specified by:
smokeTest
in interfaceNumberParseMatcher
- Parameters:
segment
- The segment to check against.- Returns:
- true if the matcher might be able to match against this segment; false if it definitely will not be able to match.
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postProcess
public void postProcess(ParsedNumber result)
Description copied from interface:NumberParseMatcher
Method called at the end of a parse, after all matchers have failed to consume any more chars. Allows a matcher to make final modifications to the result given the knowledge that no more matches are possible.- Specified by:
postProcess
in interfaceNumberParseMatcher
- Parameters:
result
- The data structure to store results.
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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