CharCategory and CharDirectionality enums for JVM.
This commit is contained in:
Ilya Gorbunov
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package kotlin
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import kotlin.properties.Delegates
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/**
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* Represents the character general category in the Unicode specification.
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*/
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public enum class CharCategory(public val value: Int) {
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/**
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* General category "Cn" in the Unicode specification.
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*/
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UNASSIGNED: CharCategory(Character.UNASSIGNED.toInt())
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/**
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* General category "Lu" in the Unicode specification.
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*/
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UPPERCASE_LETTER: CharCategory(Character.UPPERCASE_LETTER.toInt())
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/**
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* General category "Ll" in the Unicode specification.
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*/
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LOWERCASE_LETTER: CharCategory(Character.LOWERCASE_LETTER.toInt())
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/**
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* General category "Lt" in the Unicode specification.
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*/
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TITLECASE_LETTER: CharCategory(Character.TITLECASE_LETTER.toInt())
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/**
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* General category "Lm" in the Unicode specification.
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*/
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MODIFIER_LETTER: CharCategory(Character.MODIFIER_LETTER.toInt())
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/**
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* General category "Lo" in the Unicode specification.
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*/
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OTHER_LETTER: CharCategory(Character.OTHER_LETTER.toInt())
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/**
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* General category "Mn" in the Unicode specification.
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*/
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NON_SPACING_MARK: CharCategory(Character.NON_SPACING_MARK.toInt())
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/**
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* General category "Me" in the Unicode specification.
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*/
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ENCLOSING_MARK: CharCategory(Character.ENCLOSING_MARK.toInt())
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/**
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* General category "Mc" in the Unicode specification.
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*/
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COMBINING_SPACING_MARK: CharCategory(Character.COMBINING_SPACING_MARK.toInt())
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/**
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* General category "Nd" in the Unicode specification.
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*/
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DECIMAL_DIGIT_NUMBER: CharCategory(Character.DECIMAL_DIGIT_NUMBER.toInt())
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/**
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* General category "Nl" in the Unicode specification.
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*/
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LETTER_NUMBER: CharCategory(Character.LETTER_NUMBER.toInt())
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/**
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* General category "No" in the Unicode specification.
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*/
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OTHER_NUMBER: CharCategory(Character.OTHER_NUMBER.toInt())
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/**
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* General category "Zs" in the Unicode specification.
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*/
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SPACE_SEPARATOR: CharCategory(Character.SPACE_SEPARATOR.toInt())
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/**
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* General category "Zl" in the Unicode specification.
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*/
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LINE_SEPARATOR: CharCategory(Character.LINE_SEPARATOR.toInt())
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/**
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* General category "Zp" in the Unicode specification.
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*/
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PARAGRAPH_SEPARATOR: CharCategory(Character.PARAGRAPH_SEPARATOR.toInt())
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/**
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* General category "Cc" in the Unicode specification.
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*/
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CONTROL: CharCategory(Character.CONTROL.toInt())
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/**
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* General category "Cf" in the Unicode specification.
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*/
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FORMAT: CharCategory(Character.FORMAT.toInt())
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/**
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* General category "Co" in the Unicode specification.
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*/
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PRIVATE_USE: CharCategory(Character.PRIVATE_USE.toInt())
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/**
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* General category "Cs" in the Unicode specification.
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*/
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SURROGATE: CharCategory(Character.SURROGATE.toInt())
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/**
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* General category "Pd" in the Unicode specification.
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*/
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DASH_PUNCTUATION: CharCategory(Character.DASH_PUNCTUATION.toInt())
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/**
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* General category "Ps" in the Unicode specification.
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*/
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START_PUNCTUATION: CharCategory(Character.START_PUNCTUATION.toInt())
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/**
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* General category "Pe" in the Unicode specification.
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*/
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END_PUNCTUATION: CharCategory(Character.END_PUNCTUATION.toInt())
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/**
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* General category "Pc" in the Unicode specification.
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*/
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CONNECTOR_PUNCTUATION: CharCategory(Character.CONNECTOR_PUNCTUATION.toInt())
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/**
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* General category "Po" in the Unicode specification.
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*/
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OTHER_PUNCTUATION: CharCategory(Character.OTHER_PUNCTUATION.toInt())
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/**
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* General category "Sm" in the Unicode specification.
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*/
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MATH_SYMBOL: CharCategory(Character.MATH_SYMBOL.toInt())
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/**
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* General category "Sc" in the Unicode specification.
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*/
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CURRENCY_SYMBOL: CharCategory(Character.CURRENCY_SYMBOL.toInt())
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/**
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* General category "Sk" in the Unicode specification.
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*/
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MODIFIER_SYMBOL: CharCategory(Character.MODIFIER_SYMBOL.toInt())
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/**
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* General category "So" in the Unicode specification.
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*/
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OTHER_SYMBOL: CharCategory(Character.OTHER_SYMBOL.toInt())
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/**
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* General category "Pi" in the Unicode specification.
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*/
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INITIAL_QUOTE_PUNCTUATION: CharCategory(Character.INITIAL_QUOTE_PUNCTUATION.toInt())
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/**
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* General category "Pf" in the Unicode specification.
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*/
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FINAL_QUOTE_PUNCTUATION: CharCategory(Character.FINAL_QUOTE_PUNCTUATION.toInt())
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public companion object {
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private val categoryMap by Delegates.lazy { CharCategory.values().toMap { it.value } }
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public fun valueOf(category: Int): CharCategory = categoryMap[category] ?: throw IllegalArgumentException("Category #$category is not defined.")
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}
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}
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@@ -0,0 +1,119 @@
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package kotlin
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import kotlin.properties.Delegates
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/**
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* Represents the Unicode directionality of a character.
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* Character directionality is used to calculate the
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* visual ordering of text.
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*/
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public enum class CharDirectionality(public val value: Int) {
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/**
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* Undefined bidirectional character type. Undefined `char`
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* values have undefined directionality in the Unicode specification.
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*/
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UNDEFINED: CharDirectionality(Character.DIRECTIONALITY_UNDEFINED.toInt())
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/**
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* Strong bidirectional character type "L" in the Unicode specification.
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*/
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LEFT_TO_RIGHT: CharDirectionality(Character.DIRECTIONALITY_LEFT_TO_RIGHT.toInt())
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/**
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* Strong bidirectional character type "R" in the Unicode specification.
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*/
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RIGHT_TO_LEFT: CharDirectionality(Character.DIRECTIONALITY_RIGHT_TO_LEFT.toInt())
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/**
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* Strong bidirectional character type "AL" in the Unicode specification.
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*/
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RIGHT_TO_LEFT_ARABIC: CharDirectionality(Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC.toInt())
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/**
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* Weak bidirectional character type "EN" in the Unicode specification.
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*/
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EUROPEAN_NUMBER: CharDirectionality(Character.DIRECTIONALITY_EUROPEAN_NUMBER.toInt())
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/**
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* Weak bidirectional character type "ES" in the Unicode specification.
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*/
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EUROPEAN_NUMBER_SEPARATOR: CharDirectionality(Character.DIRECTIONALITY_EUROPEAN_NUMBER_SEPARATOR.toInt())
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/**
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* Weak bidirectional character type "ET" in the Unicode specification.
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*/
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EUROPEAN_NUMBER_TERMINATOR: CharDirectionality(Character.DIRECTIONALITY_EUROPEAN_NUMBER_TERMINATOR.toInt())
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/**
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* Weak bidirectional character type "AN" in the Unicode specification.
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*/
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ARABIC_NUMBER: CharDirectionality(Character.DIRECTIONALITY_ARABIC_NUMBER.toInt())
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/**
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* Weak bidirectional character type "CS" in the Unicode specification.
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*/
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COMMON_NUMBER_SEPARATOR: CharDirectionality(Character.DIRECTIONALITY_COMMON_NUMBER_SEPARATOR.toInt())
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/**
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* Weak bidirectional character type "NSM" in the Unicode specification.
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*/
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NONSPACING_MARK: CharDirectionality(Character.DIRECTIONALITY_NONSPACING_MARK.toInt())
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/**
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* Weak bidirectional character type "BN" in the Unicode specification.
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*/
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BOUNDARY_NEUTRAL: CharDirectionality(Character.DIRECTIONALITY_BOUNDARY_NEUTRAL.toInt())
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/**
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* Neutral bidirectional character type "B" in the Unicode specification.
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*/
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PARAGRAPH_SEPARATOR: CharDirectionality(Character.DIRECTIONALITY_PARAGRAPH_SEPARATOR.toInt())
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/**
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* Neutral bidirectional character type "S" in the Unicode specification.
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*/
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SEGMENT_SEPARATOR: CharDirectionality(Character.DIRECTIONALITY_SEGMENT_SEPARATOR.toInt())
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/**
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* Neutral bidirectional character type "WS" in the Unicode specification.
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*/
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WHITESPACE: CharDirectionality(Character.DIRECTIONALITY_WHITESPACE.toInt())
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/**
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* Neutral bidirectional character type "ON" in the Unicode specification.
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*/
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OTHER_NEUTRALS: CharDirectionality(Character.DIRECTIONALITY_OTHER_NEUTRALS.toInt())
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/**
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* Strong bidirectional character type "LRE" in the Unicode specification.
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*/
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LEFT_TO_RIGHT_EMBEDDING: CharDirectionality(Character.DIRECTIONALITY_LEFT_TO_RIGHT_EMBEDDING.toInt())
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/**
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* Strong bidirectional character type "LRO" in the Unicode specification.
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*/
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LEFT_TO_RIGHT_OVERRIDE: CharDirectionality(Character.DIRECTIONALITY_LEFT_TO_RIGHT_OVERRIDE.toInt())
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/**
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* Strong bidirectional character type "RLE" in the Unicode specification.
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*/
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RIGHT_TO_LEFT_EMBEDDING: CharDirectionality(Character.DIRECTIONALITY_RIGHT_TO_LEFT_EMBEDDING.toInt())
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/**
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* Strong bidirectional character type "RLO" in the Unicode specification.
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*/
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RIGHT_TO_LEFT_OVERRIDE: CharDirectionality(Character.DIRECTIONALITY_RIGHT_TO_LEFT_OVERRIDE.toInt())
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/**
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* Weak bidirectional character type "PDF" in the Unicode specification.
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*/
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POP_DIRECTIONAL_FORMAT: CharDirectionality(Character.DIRECTIONALITY_POP_DIRECTIONAL_FORMAT.toInt())
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public companion object {
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private val directionalityMap by Delegates.lazy { CharDirectionality.values().toMap { it.value } }
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public fun valueOf(directionality: Int): CharDirectionality = directionalityMap[directionality] ?: throw IllegalArgumentException("Directionality #$directionality is not defined.")
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}
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}
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@@ -79,3 +79,19 @@ public fun Char.toUpperCase(): Char = Character.toUpperCase(this)
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* Converts this character to lowercase.
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*/
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public fun Char.toLowerCase(): Char = Character.toLowerCase(this)
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/**
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* Returns a value indicating a character's general category.
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*/
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public fun Char.category(): CharCategory = CharCategory.valueOf(Character.getType(this))
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/**
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* Returns the Unicode directionality property for the given character.
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*/
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public fun Char.directionality(): CharDirectionality = CharDirectionality.valueOf(Character.getDirectionality(this).toInt())
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// TODO Provide name for JVM7+
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///**
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// * Returns the Unicode name of this character, or null if the code point of this character is unassigned.
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// */
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//public fun Char.name(): String? = Character.getName(this.toInt())
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@@ -0,0 +1,15 @@
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package test.text
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import kotlin.test.*
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import org.junit.Test as test
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class CharJVMTest {
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test fun getCategory() {
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assertEquals(CharCategory.DECIMAL_DIGIT_NUMBER, '7'.category())
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assertEquals(CharCategory.CURRENCY_SYMBOL, '$'.category())
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assertEquals(CharCategory.LOWERCASE_LETTER, 'a'.category())
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assertEquals(CharCategory.UPPERCASE_LETTER, 'Õ'.category())
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}
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}
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