Isolate split detect on '<{' '}' block

composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt

@@ -6,18 +6,13 @@ import kotlinx.coroutines.*
 import mg.dot.feufaro.FileRepository
 import mg.dot.feufaro.SaveSettings
 import mg.dot.feufaro.getGlobalTemplate
-import mg.dot.feufaro.getPlatform
 import mg.dot.feufaro.launchFilePicker
 import mg.dot.feufaro.midi.MidiPitch
 import mg.dot.feufaro.midi.MidiWriterKotlin
 import mg.dot.feufaro.midi.MidiWriterforEXport
 import mg.dot.feufaro.provideSettings
 import mg.dot.feufaro.viewmodel.PartitionMetadata
-import mg.dot.feufaro.transformLyricsInput
-import org.koin.core.component.inject
 import java.io.File
-import java.util.prefs.Preferences
-import kotlin.getValue
 import kotlin.math.min
 
 //@todo: ffpm-164.txt O10:s3:mflswss // alternative notes for stanza 3 only
@@ -2105,6 +2100,7 @@ class Solfa(val sharedScreenModel: SharedScreenModel, private val fileRepository
         }
         var commentNumber = -1
         var inSplit = false
+        var expectSplitBrace = false
         val lineChar = lineRepeated.toCharArray()
         lineChar.forEach {
             when (it) {
@@ -2119,9 +2115,14 @@ class Solfa(val sharedScreenModel: SharedScreenModel, private val fileRepository
                 }
 
                 // blocs de split <[...]
-                '<' -> { }
+                '<' -> {
+                    expectSplitBrace = true
+                }
                 '{' -> {
+                    if (expectSplitBrace) {
                         inSplit = true
+                        expectSplitBrace = false
+                    }
                 }
                 '}' -> {
                     inSplit = false
@@ -2238,6 +2239,9 @@ class Solfa(val sharedScreenModel: SharedScreenModel, private val fileRepository
                         trioletCount = 2
                         nextDuration = nextDuration - nextTrioletDuration                    }
                 }
+                else -> {
+                    expectSplitBrace = false
+                }
             }
             lastIt = it
         }