Package com.ibm.icu.impl.number.parse
Class AffixMatcher
java.lang.Object
com.ibm.icu.impl.number.parse.AffixMatcher
- All Implemented Interfaces:
NumberParseMatcher
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Nested Class Summary
Nested classes/interfaces inherited from interface com.ibm.icu.impl.number.parse.NumberParseMatcher
NumberParseMatcher.Flexible
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final Comparator<AffixMatcher>
Comparator for two AffixMatcher instances which prioritizes longer prefixes followed by longer suffixes, ensuring that the longest prefix/suffix pair is always chosen.private final int
private final AffixPatternMatcher
private final AffixPatternMatcher
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Constructor Summary
ConstructorsModifierConstructorDescriptionprivate
AffixMatcher
(AffixPatternMatcher prefix, AffixPatternMatcher suffix, int flags) -
Method Summary
Modifier and TypeMethodDescriptionstatic void
createMatchers
(AffixPatternProvider patternInfo, NumberParserImpl output, AffixTokenMatcherFactory factory, IgnorablesMatcher ignorables, int parseFlags) boolean
private static final AffixMatcher
getInstance
(AffixPatternMatcher prefix, AffixPatternMatcher suffix, int flags) int
hashCode()
private static boolean
isInteresting
(AffixPatternProvider patternInfo, IgnorablesMatcher ignorables, int parseFlags) private static int
length
(AffixPatternMatcher matcher) Helper method to return the length of the given AffixPatternMatcher.boolean
match
(StringSegment segment, ParsedNumber result) Runs this matcher starting at the beginning of the given StringSegment.(package private) static boolean
matched
(AffixPatternMatcher affix, String patternString) Helper method to return whether the given AffixPatternMatcher equals the given pattern string.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.toString()
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Field Details
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prefix
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suffix
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flags
private final int flags -
COMPARATOR
Comparator for two AffixMatcher instances which prioritizes longer prefixes followed by longer suffixes, ensuring that the longest prefix/suffix pair is always chosen.
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Constructor Details
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AffixMatcher
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Method Details
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isInteresting
private static boolean isInteresting(AffixPatternProvider patternInfo, IgnorablesMatcher ignorables, int parseFlags) -
createMatchers
public static void createMatchers(AffixPatternProvider patternInfo, NumberParserImpl output, AffixTokenMatcherFactory factory, IgnorablesMatcher ignorables, int parseFlags) -
getInstance
private static final AffixMatcher getInstance(AffixPatternMatcher prefix, AffixPatternMatcher suffix, int flags) -
match
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
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
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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matched
Helper method to return whether the given AffixPatternMatcher equals the given pattern string. Either both arguments must be null or the pattern string inside the AffixPatternMatcher must equal the given pattern string. -
length
Helper method to return the length of the given AffixPatternMatcher. Returns 0 for null. -
equals
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hashCode
public int hashCode() -
toString
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