Hi, is there a way to replace some content in the `AnnotatedString` with the replacement string in s...

# compose-android

[Atul Gupta]

Hi, is there a way to replace some content in the AnnotatedString with the replacement string in such a way that replace method returns AnnotatedString string itself?

[Atul Gupta]

In my string I have placeholder %PLACEHOLDER% string which I want to replace at single place with some other actual value of placeholder

[Mark]

Maybe this:

fun CharSequence.replaceAnnotated(
    regex: Regex,
    transform: (MatchResult) -> AnnotatedString?,
): AnnotatedString {
    val input = this
    var offset = 0
    return buildAnnotatedString {
        regex.findAll(input).forEach { mr ->
            val replacement = transform(mr) ?: return@forEach
            val first = mr.range.first
            if (first > offset) {
                append(input.subSequence(offset, first))
            }
            append(replacement)
            offset = mr.range.last + 1
        }
        if (offset < input.length) {
            append(input.subSequence(offset, input.length))
        }
    }
}