Nikolay Igotti
32 lines
1.2 KiB
Kotlin
32 lines
1.2 KiB
Kotlin
package kotlin.text
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/**
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* Concatenates this Char and a String.
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*/
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@kotlin.internal.InlineOnly
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public inline operator fun Char.plus(other: String) : String = this.toString() + other
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/**
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* Returns `true` if this character is equal to the [other] character, optionally ignoring character case.
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*
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* @param ignoreCase `true` to ignore character case when comparing characters. By default `false`.
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*
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* Two characters are considered the same ignoring case if at least one of the following is `true`:
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* - The two characters are the same (as compared by the == operator)
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* - Applying the method [toUpperCase] to each character produces the same result
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* - Applying the method [toLowerCase] to each character produces the same result
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*/
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public fun Char.equals(other: Char, ignoreCase: Boolean = false): Boolean {
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if (this === other) return true
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if (!ignoreCase) return false
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if (this.toUpperCase() === other.toUpperCase()) return true
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if (this.toLowerCase() === other.toLowerCase()) return true
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return false
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}
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/**
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* Returns `true` if this character is a Unicode surrogate code unit.
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*/
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public fun Char.isSurrogate(): Boolean = this in Char.MIN_SURROGATE..Char.MAX_SURROGATE
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