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/*
* Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package kotlin.text
expect class Regex {
constructor(pattern: String)
constructor(pattern: String, option: RegexOption)
constructor(pattern: String, options: Set)
val pattern: String
val options: Set
fun matchEntire(input: CharSequence): MatchResult?
infix fun matches(input: CharSequence): Boolean
/**
* Attempts to match a regular expression exactly at the specified [index] in the [input] char sequence.
*
* Unlike [matchEntire] function, it doesn't require the match to span to the end of [input].
*
* @return An instance of [MatchResult] if the input matches this [Regex] at the specified [index] or `null` otherwise.
* @throws IndexOutOfBoundsException if [index] is less than zero or greater than the length of the [input] char sequence.
*/
@SinceKotlin("1.5")
@ExperimentalStdlibApi
fun matchAt(input: CharSequence, index: Int): MatchResult?
/**
* Checks if a regular expression matches a part of the specified [input] char sequence
* exactly at the specified [index].
*
* Unlike [matches] function, it doesn't require the match to span to the end of [input].
*
* @throws IndexOutOfBoundsException if [index] is less than zero or greater than the length of the [input] char sequence.
*/
@SinceKotlin("1.5")
@ExperimentalStdlibApi
fun matchesAt(input: CharSequence, index: Int): Boolean
fun containsMatchIn(input: CharSequence): Boolean
fun replace(input: CharSequence, replacement: String): String
fun replace(input: CharSequence, transform: (MatchResult) -> CharSequence): String
fun replaceFirst(input: CharSequence, replacement: String): String
/**
* Returns the first match of a regular expression in the [input], beginning at the specified [startIndex].
*
* @param startIndex An index to start search with, by default 0. Must be not less than zero and not greater than `input.length()`
* @return An instance of [MatchResult] if match was found or `null` otherwise.
* @throws IndexOutOfBoundsException if [startIndex] is less than zero or greater than the length of the [input] char sequence.
* @sample samples.text.Regexps.find
*/
fun find(input: CharSequence, startIndex: Int = 0): MatchResult?
/**
* Returns a sequence of all occurrences of a regular expression within the [input] string, beginning at the specified [startIndex].
*
* @throws IndexOutOfBoundsException if [startIndex] is less than zero or greater than the length of the [input] char sequence.
*
* @sample samples.text.Regexps.findAll
*/
fun findAll(input: CharSequence, startIndex: Int = 0): Sequence
/**
* Splits the [input] CharSequence to a list of strings around matches of this regular expression.
*
* @param limit Non-negative value specifying the maximum number of substrings the string can be split to.
* Zero by default means no limit is set.
*/
fun split(input: CharSequence, limit: Int = 0): List
/**
* Splits the [input] CharSequence to a sequence of strings around matches of this regular expression.
*
* @param limit Non-negative value specifying the maximum number of substrings the string can be split to.
* Zero by default means no limit is set.
*/
@SinceKotlin("1.5")
@ExperimentalStdlibApi
public fun splitToSequence(input: CharSequence, limit: Int = 0): Sequence
companion object {
fun fromLiteral(literal: String): Regex
fun escape(literal: String): String
fun escapeReplacement(literal: String): String
}
}
expect class MatchGroup {
val value: String
}
expect enum class RegexOption {
IGNORE_CASE,
MULTILINE
}
// From char.kt
expect fun Char.isHighSurrogate(): Boolean
expect fun Char.isLowSurrogate(): Boolean
// From string.kt
/**
* Converts the characters in the specified array to a string.
*/
@SinceKotlin("1.2")
@Deprecated("Use CharArray.concatToString() instead", ReplaceWith("chars.concatToString()"))
@DeprecatedSinceKotlin(warningSince = "1.4", errorSince = "1.5")
public expect fun String(chars: CharArray): String
/**
* Converts the characters from a portion of the specified array to a string.
*
* @throws IndexOutOfBoundsException if either [offset] or [length] are less than zero
* or `offset + length` is out of [chars] array bounds.
*/
@SinceKotlin("1.2")
@Deprecated("Use CharArray.concatToString(startIndex, endIndex) instead", ReplaceWith("chars.concatToString(offset, offset + length)"))
@DeprecatedSinceKotlin(warningSince = "1.4", errorSince = "1.5")
public expect fun String(chars: CharArray, offset: Int, length: Int): String
/**
* Concatenates characters in this [CharArray] into a String.
*/
@SinceKotlin("1.4")
@WasExperimental(ExperimentalStdlibApi::class)
public expect fun CharArray.concatToString(): String
/**
* Concatenates characters in this [CharArray] or its subrange into a String.
*
* @param startIndex the beginning (inclusive) of the subrange of characters, 0 by default.
* @param endIndex the end (exclusive) of the subrange of characters, size of this array by default.
*
* @throws IndexOutOfBoundsException if [startIndex] is less than zero or [endIndex] is greater than the size of this array.
* @throws IllegalArgumentException if [startIndex] is greater than [endIndex].
*/
@SinceKotlin("1.4")
@WasExperimental(ExperimentalStdlibApi::class)
public expect fun CharArray.concatToString(startIndex: Int = 0, endIndex: Int = this.size): String
/**
* Returns a [CharArray] containing characters of this string.
*/
@SinceKotlin("1.4")
@WasExperimental(ExperimentalStdlibApi::class)
public expect fun String.toCharArray(): CharArray
/**
* Returns a [CharArray] containing characters of this string or its substring.
*
* @param startIndex the beginning (inclusive) of the substring, 0 by default.
* @param endIndex the end (exclusive) of the substring, length of this string by default.
*
* @throws IndexOutOfBoundsException if [startIndex] is less than zero or [endIndex] is greater than the length of this string.
* @throws IllegalArgumentException if [startIndex] is greater than [endIndex].
*/
@SinceKotlin("1.4")
@WasExperimental(ExperimentalStdlibApi::class)
public expect fun String.toCharArray(startIndex: Int = 0, endIndex: Int = this.length): CharArray
/**
* Decodes a string from the bytes in UTF-8 encoding in this array.
*
* Malformed byte sequences are replaced by the replacement char `\uFFFD`.
*/
@SinceKotlin("1.4")
@WasExperimental(ExperimentalStdlibApi::class)
public expect fun ByteArray.decodeToString(): String
/**
* Decodes a string from the bytes in UTF-8 encoding in this array or its subrange.
*
* @param startIndex the beginning (inclusive) of the subrange to decode, 0 by default.
* @param endIndex the end (exclusive) of the subrange to decode, size of this array by default.
* @param throwOnInvalidSequence specifies whether to throw an exception on malformed byte sequence or replace it by the replacement char `\uFFFD`.
*
* @throws IndexOutOfBoundsException if [startIndex] is less than zero or [endIndex] is greater than the size of this array.
* @throws IllegalArgumentException if [startIndex] is greater than [endIndex].
* @throws CharacterCodingException if the byte array contains malformed UTF-8 byte sequence and [throwOnInvalidSequence] is true.
*/
@SinceKotlin("1.4")
@WasExperimental(ExperimentalStdlibApi::class)
public expect fun ByteArray.decodeToString(
startIndex: Int = 0,
endIndex: Int = this.size,
throwOnInvalidSequence: Boolean = false
): String
/**
* Encodes this string to an array of bytes in UTF-8 encoding.
*
* Any malformed char sequence is replaced by the replacement byte sequence.
*/
@SinceKotlin("1.4")
@WasExperimental(ExperimentalStdlibApi::class)
public expect fun String.encodeToByteArray(): ByteArray
/**
* Encodes this string or its substring to an array of bytes in UTF-8 encoding.
*
* @param startIndex the beginning (inclusive) of the substring to encode, 0 by default.
* @param endIndex the end (exclusive) of the substring to encode, length of this string by default.
* @param throwOnInvalidSequence specifies whether to throw an exception on malformed char sequence or replace.
*
* @throws IndexOutOfBoundsException if [startIndex] is less than zero or [endIndex] is greater than the length of this string.
* @throws IllegalArgumentException if [startIndex] is greater than [endIndex].
* @throws CharacterCodingException if this string contains malformed char sequence and [throwOnInvalidSequence] is true.
*/
@SinceKotlin("1.4")
@WasExperimental(ExperimentalStdlibApi::class)
public expect fun String.encodeToByteArray(
startIndex: Int = 0,
endIndex: Int = this.length,
throwOnInvalidSequence: Boolean = false
): ByteArray
internal expect fun String.nativeIndexOf(str: String, fromIndex: Int): Int
internal expect fun String.nativeLastIndexOf(str: String, fromIndex: Int): Int
public expect fun String.substring(startIndex: Int): String
public expect fun String.substring(startIndex: Int, endIndex: Int): String
/**
* Returns a string containing this char sequence repeated [n] times.
* @throws [IllegalArgumentException] when n < 0.
* @sample samples.text.Strings.repeat
*/
public expect fun CharSequence.repeat(n: Int): String
/**
* Returns a new string with all occurrences of [oldChar] replaced with [newChar].
*
* @sample samples.text.Strings.replace
*/
expect fun String.replace(oldChar: Char, newChar: Char, ignoreCase: Boolean = false): String
/**
* Returns a new string obtained by replacing all occurrences of the [oldValue] substring in this string
* with the specified [newValue] string.
*
* @sample samples.text.Strings.replace
*/
expect fun String.replace(oldValue: String, newValue: String, ignoreCase: Boolean = false): String
/**
* Returns a new string with the first occurrence of [oldChar] replaced with [newChar].
*/
expect fun String.replaceFirst(oldChar: Char, newChar: Char, ignoreCase: Boolean = false): String
/**
* Returns a new string obtained by replacing the first occurrence of the [oldValue] substring in this string
* with the specified [newValue] string.
*/
expect fun String.replaceFirst(oldValue: String, newValue: String, ignoreCase: Boolean = false): String
/**
* Returns `true` if this string is equal to [other], optionally ignoring character case.
*
* @param ignoreCase `true` to ignore character case when comparing strings. By default `false`.
*/
expect fun String?.equals(other: String?, ignoreCase: Boolean = false): Boolean
/**
* Compares two strings lexicographically, optionally ignoring case differences.
*/
@SinceKotlin("1.2")
expect fun String.compareTo(other: String, ignoreCase: Boolean = false): Int
public expect fun String.startsWith(prefix: String, ignoreCase: Boolean = false): Boolean
public expect fun String.startsWith(prefix: String, startIndex: Int, ignoreCase: Boolean = false): Boolean
public expect fun String.endsWith(suffix: String, ignoreCase: Boolean = false): Boolean
// From stringsCode.kt
internal expect fun String.nativeIndexOf(ch: Char, fromIndex: Int): Int
internal expect fun String.nativeLastIndexOf(ch: Char, fromIndex: Int): Int
expect fun CharSequence.isBlank(): Boolean
/**
* Returns `true` if the specified range in this char sequence is equal to the specified range in another char sequence.
* @param thisOffset the start offset in this char sequence of the substring to compare.
* @param other the string against a substring of which the comparison is performed.
* @param otherOffset the start offset in the other char sequence of the substring to compare.
* @param length the length of the substring to compare.
*/
expect fun CharSequence.regionMatches(
thisOffset: Int,
other: CharSequence,
otherOffset: Int,
length: Int,
ignoreCase: Boolean = false
): Boolean
/**
* A Comparator that orders strings ignoring character case.
*
* Note that this Comparator does not take locale into account,
* and will result in an unsatisfactory ordering for certain locales.
*/
@SinceKotlin("1.2")
public expect val String.Companion.CASE_INSENSITIVE_ORDER: Comparator
/**
* Returns `true` if the content of this string is equal to the word "true", ignoring case, and `false` otherwise.
*/
@Deprecated("Use Kotlin compiler 1.4 to avoid deprecation warning.")
@DeprecatedSinceKotlin(hiddenSince = "1.4")
@kotlin.internal.InlineOnly
public expect fun String.toBoolean(): Boolean
/**
* Returns `true` if this string is not `null` and its content is equal to the word "true", ignoring case, and `false` otherwise.
*
* There are also strict versions of the function available on non-nullable String, [toBooleanStrict] and [toBooleanStrictOrNull].
*/
@SinceKotlin("1.4")
public expect fun String?.toBoolean(): Boolean
/**
* Parses the string as a signed [Byte] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
*/
expect fun String.toByte(): Byte
/**
* Parses the string as a signed [Byte] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
* @throws IllegalArgumentException when [radix] is not a valid radix for string to number conversion.
*/
expect fun String.toByte(radix: Int): Byte
/**
* Parses the string as a [Short] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
*/
expect fun String.toShort(): Short
/**
* Parses the string as a [Short] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
* @throws IllegalArgumentException when [radix] is not a valid radix for string to number conversion.
*/
expect fun String.toShort(radix: Int): Short
/**
* Parses the string as an [Int] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
*/
expect fun String.toInt(): Int
/**
* Parses the string as an [Int] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
* @throws IllegalArgumentException when [radix] is not a valid radix for string to number conversion.
*/
expect fun String.toInt(radix: Int): Int
/**
* Parses the string as a [Long] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
*/
expect fun String.toLong(): Long
/**
* Parses the string as a [Long] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
* @throws IllegalArgumentException when [radix] is not a valid radix for string to number conversion.
*/
expect fun String.toLong(radix: Int): Long
/**
* Parses the string as a [Double] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
*/
expect fun String.toDouble(): Double
/**
* Parses the string as a [Float] number and returns the result.
* @throws NumberFormatException if the string is not a valid representation of a number.
*/
expect fun String.toFloat(): Float
/**
* Parses the string as a [Double] number and returns the result
* or `null` if the string is not a valid representation of a number.
*/
expect fun String.toDoubleOrNull(): Double?
/**
* Parses the string as a [Float] number and returns the result
* or `null` if the string is not a valid representation of a number.
*/
expect fun String.toFloatOrNull(): Float?
/**
* Returns a string representation of this [Byte] value in the specified [radix].
*
* @throws IllegalArgumentException when [radix] is not a valid radix for number to string conversion.
*/
@SinceKotlin("1.2")
expect fun Byte.toString(radix: Int): String
/**
* Returns a string representation of this [Short] value in the specified [radix].
*
* @throws IllegalArgumentException when [radix] is not a valid radix for number to string conversion.
*/
@SinceKotlin("1.2")
expect fun Short.toString(radix: Int): String
/**
* Returns a string representation of this [Int] value in the specified [radix].
*
* @throws IllegalArgumentException when [radix] is not a valid radix for number to string conversion.
*/
@SinceKotlin("1.2")
expect fun Int.toString(radix: Int): String
/**
* Returns a string representation of this [Long] value in the specified [radix].
*
* @throws IllegalArgumentException when [radix] is not a valid radix for number to string conversion.
*/
@SinceKotlin("1.2")
expect fun Long.toString(radix: Int): String
@PublishedApi
internal expect fun checkRadix(radix: Int): Int
internal expect fun digitOf(char: Char, radix: Int): Int