prog8/codeGenExperimental/src/prog8/codegen/experimental/IndentingXmlWriter.kt

91 lines
2.7 KiB
Kotlin

package prog8.codegen.experimental
import prog8.code.core.Position
import java.util.*
import javax.xml.stream.XMLStreamWriter
class IndentingXmlWriter(val xml: XMLStreamWriter): XMLStreamWriter by xml {
private var indent = 0
private var content = Stack<Boolean>()
fun doc(version: String? = null) = if(version==null) writeStartDocument() else writeStartDocument(version)
fun endDoc() = writeEndDocument()
fun elt(name: String) = writeStartElement(name)
fun attr(name: String, value: String) = writeAttribute(name, value)
fun attrs(attributes: List<Pair<String, String>>) = attributes.forEach { writeAttribute(it.first, it.second) }
fun startChildren() {
xml.writeCharacters("\n")
content.pop()
content.push(true)
}
fun endElt(writeIndent: Boolean=true) = writeEndElement(writeIndent)
fun pos(pos: Position) {
elt("src")
attr("pos", pos.toString())
endElt()
}
fun comment(text: String) {
writeComment(text)
writeCharacters("\n")
}
override fun writeStartDocument() {
xml.writeStartDocument()
xml.writeCharacters("\n")
content.push(true)
}
override fun writeStartDocument(version: String) {
xml.writeStartDocument(version)
xml.writeCharacters("\n")
content.push(true)
}
override fun writeEndDocument() {
xml.writeEndDocument()
xml.writeCharacters("\n")
require(indent==0)
require(content.size==1)
}
override fun writeStartElement(name: String) {
xml.writeCharacters(" ".repeat(indent))
xml.writeStartElement(name)
indent++
content.push(false)
}
override fun writeStartElement(name: String, ns: String) {
xml.writeCharacters(" ".repeat(indent))
xml.writeStartElement(name, ns)
indent++
content.push(false)
}
fun writeEndElement(writeIndents: Boolean) {
indent--
if(content.pop() && writeIndents)
xml.writeCharacters(" ".repeat(indent))
xml.writeEndElement()
xml.writeCharacters("\n")
}
override fun writeEndElement() = writeEndElement(true)
override fun writeStartElement(name: String, ns: String, p2: String) {
xml.writeCharacters(" ".repeat(indent))
xml.writeStartElement(name, ns, p2)
indent++
content.push(false)
}
fun writeTextNode(name: String, attrs: List<Pair<String, String>>, text: String) {
xml.writeCharacters(" ".repeat(indent))
xml.writeStartElement(name)
attrs.forEach { (name, value) -> xml.writeAttribute(name, value) }
xml.writeCData(text)
xml.writeEndElement()
xml.writeCharacters("\n")
}
}