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package moe.nea.firmament.util
import net.minecraft.text.MutableText
import net.minecraft.text.PlainTextContent
import net.minecraft.text.Text
import net.minecraft.text.TranslatableTextContent
import net.minecraft.util.Formatting
import moe.nea.firmament.Firmament
class TextMatcher(text: Text) {
data class State(
var iterator: MutableList<Text>,
var currentText: Text?,
var offset: Int,
var textContent: String,
)
var state = State(
mutableListOf(text),
null,
0,
""
)
fun pollChunk(): Boolean {
val firstOrNull = state.iterator.removeFirstOrNull() ?: return false
state.offset = 0
state.currentText = firstOrNull
state.textContent = when (val content = firstOrNull.content) {
is PlainTextContent.Literal -> content.string
else -> {
Firmament.logger.warn("TextContent of type ${content.javaClass} not understood.")
return false
}
}
state.iterator.addAll(0, firstOrNull.siblings)
return true
}
fun pollChunks(): Boolean {
while (state.offset !in state.textContent.indices) {
if (!pollChunk()) {
return false
}
}
return true
}
fun pollChar(): Char? {
if (!pollChunks()) return null
return state.textContent[state.offset++]
}
fun expectString(string: String): Boolean {
var found = ""
while (found.length < string.length) {
if (!pollChunks()) return false
val takeable = state.textContent.drop(state.offset).take(string.length - found.length)
state.offset += takeable.length
found += takeable
}
return found == string
}
}
val formattingChars = "kmolnrKMOLNR".toSet()
fun CharSequence.removeColorCodes(keepNonColorCodes: Boolean = false): String {
var nextParagraph = indexOf('§')
if (nextParagraph < 0) return this.toString()
val stringBuffer = StringBuilder(this.length)
var readIndex = 0
while (nextParagraph >= 0) {
stringBuffer.append(this, readIndex, nextParagraph)
if (keepNonColorCodes && nextParagraph + 1 < length && this[nextParagraph + 1] in formattingChars) {
readIndex = nextParagraph
nextParagraph = indexOf('§', startIndex = readIndex + 1)
} else {
readIndex = nextParagraph + 2
nextParagraph = indexOf('§', startIndex = readIndex)
}
if (readIndex > this.length)
readIndex = this.length
}
stringBuffer.append(this, readIndex, this.length)
return stringBuffer.toString()
}
val Text.unformattedString: String
get() = string.removeColorCodes()
fun Text.allSiblings(): List<Text> = listOf(this) + siblings.flatMap { it.allSiblings() }
fun MutableText.withColor(formatting: Formatting) = this.styled { it.withColor(formatting).withItalic(false) }
fun Text.transformEachRecursively(function: (Text) -> Text): Text {
val c = this.content
if (c is TranslatableTextContent) {
return Text.translatableWithFallback(c.key, c.fallback, *c.args.map {
(if (it is Text) it else Text.literal(it.toString())).transformEachRecursively(function)
}.toTypedArray()).also { new ->
new.style = this.style
new.siblings.clear()
this.siblings.forEach { child ->
new.siblings.add(child.transformEachRecursively(function))
}
}
}
return function(this.copy().also { it.siblings.clear() }).also { tt ->
this.siblings.forEach {
tt.siblings.add(it.transformEachRecursively(function))
}
}
}
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