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a7b88e9485
And String.length as well. This is done for JVM interoperability: java.lang.CharSequence is an open class and has a function 'length()' which should be implemented in subclasses somehow. A minor unexpected effect of this is that String.length() is now a compile-time constant (it wasn't such as a property because properties are not supported in compile-time constant evaluation) #KT-3571 Fixed
16 lines
401 B
Kotlin
16 lines
401 B
Kotlin
fun escapeChar(c : Char) : String? = when (c) {
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'\\' -> "\\\\"
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'\n' -> "\\n"
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'"' -> "\\\""
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else -> "" + c
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}
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tailRecursive fun String.escape(i : Int = 0, result : StringBuilder = StringBuilder()) : String =
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if (i == length()) result.toString()
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else escape(i + 1, result.append(escapeChar(get(i))))
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fun box() : String {
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"test me not \\".escape()
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return "OK"
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}
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