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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2002-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala
package collection
package immutable
import mutable.StringBuilder
/**
* This class serves as a wrapper providing `String`s with all the operations
* found in indexed sequences. Where needed, instances of `String` object
* are implicitly converted into this class.
*
* The difference between this class and `WrappedString` is that calling transformer
* methods such as `filter` and `map` will yield a `String` object, whereas a
* `WrappedString` will remain a `WrappedString`.
*
* @param repr the actual representation of this string operations object.
*
* @since 2.8
* @define Coll `String`
* @define coll string
*/
final class StringOps(override val repr: String) extends AnyVal with StringLike[String] {
override protected[this] def thisCollection: WrappedString = new WrappedString(repr)
override protected[this] def toCollection(repr: String): WrappedString = new WrappedString(repr)
/** Creates a string builder buffer as builder for this class */
override protected[this] def newBuilder = StringBuilder.newBuilder
override def apply(index: Int): Char = repr charAt index
override def slice(from: Int, until: Int): String = {
val start = if (from < 0) 0 else from
if (until <= start || start >= repr.length)
return ""
val end = if (until > length) length else until
repr.substring(start, end)
}
override def toString = repr
override def length = repr.length
def seq = new WrappedString(repr)
}
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