created jgmenu corrector in Kotlin - anyway better than sed strings

JgmenuCorrector.kt

@@ -0,0 +1,145 @@
+import java.util.*
+
+
+typealias Menu = HashMap<String, Pair<String, MutableList<String>>>
+
+val deleteSubmenus = arrayOf("apps-dir-Education", "apps-dir-Settings")
+val newSubmenus = arrayOf(Pair("apps-dir-Database", "БД и проект-ие"))
+
+/// Добавляет новые записи как есть, в формате CSV для jgmenu_run
+val appendix: MutableList<Pair<String, String>> = mutableListOf(
+    Pair("Archi (Archimate Modeling Tool),Archi,archi,,#Education", "apps-dir-Database"),
+    Pair("Выключить,powermenu poweroff,,,#System", "apps-dir-System"), // TODO powermenu
+    Pair("Перезагрузить,powermenu reboot,,,#System", "apps-dir-System"), // TODO powermenu
+    Pair("IntelliJ IDEA Community Edition,idea-community,idea-community,,#Development", "apps-dir-Development")
+)
+
+/// Удаляет записи, содержащие строку1, из всех подменю при строке2==null,
+/// иначе только из подменю с тегом из переменной строка2
+val deletions: MutableList<Pair<String, String?>> = mutableListOf(
+    Pair("XTerm", null),
+    Pair("Vim", null),
+    Pair("LibreOffice Draw", null),
+    Pair("LibreOffice Math", null),
+    Pair("LibreOffice Base", null),
+    Pair("Tint2", null),
+    Pair("(Free Java", null)
+)
+
+/// Добавляет новые "перемещения" (удаления из одного подменю и добавления в другое)
+val moves: Array<Triple<String, String, String>> = arrayOf(
+    Triple("Camunda Modeler", "apps-dir-Other", "apps-dir-Database"),
+    Triple("StarUML", "apps-dir-Development", "apps-dir-Database"),
+    Triple("MySQL Workbench", "apps-dir-Development", "apps-dir-Database")
+)
+
+fun readWhile(m: Scanner, p: (String) -> Boolean):
+        MutableList<String> {
+    val l: MutableList<String> = mutableListOf()
+    while (m.hasNext()) {
+        val s = m.nextLine()
+        if (! p(s)) return l
+        l.addLast(s!!)
+    }
+    return l
+}
+
+fun readMenu (m: Scanner): Menu {
+    fun String.erase(m: Regex): String {
+        return this.replace(m, "")
+    }
+
+    fun regexDumbTriple(name: String): Triple<Regex, Regex, Regex> {
+        val left = Regex("\\^$name\\(")
+        val right = Regex("\\)")
+        val tag = Regex("^$left[^)]*$right$")
+        return Triple(left, right, tag)
+    }
+
+    val menu = HashMap<String, Pair<String, MutableList<String>>>()
+    val heads = readWhile(m) { it != "" }
+
+    for (s in heads) {
+        val (l, r, _) = regexDumbTriple("checkout")
+
+        val lst = s.split(",")
+        val key = lst[1].erase(l).erase(r)
+        val nam = lst[0]
+        menu[key] = Pair(nam, mutableListOf())
+    }
+
+    val tails = readWhile(m) { true }
+    var currentTagName = ""
+    for (s in tails) {
+        val (l, r, t) = regexDumbTriple("tag")
+
+        when {
+            s.matches(t) ->
+                currentTagName = s.erase(l).erase(r)
+            s.isEmpty() -> continue
+            else ->
+                menu[currentTagName]?.second?.addLast(s)
+        }
+    }
+
+    return menu
+}
+
+fun findEntries (what: String, where: Pair<String, MutableList<String>>): List<String> {
+    return where.second.filter { it.contains(what) }
+}
+
+fun printMenu (menu: Menu) {
+    menu.map {
+        val tag = it.key
+        val caption = it.value.first
+        println("$caption,^checkout($tag),applications-$tag")
+    }
+    println()
+    menu.map { submenu ->
+        val tag = submenu.key
+        val entries = submenu.value.second
+        if (entries.isNotEmpty()){
+            println("^tag($tag)")
+            entries.map { println(it) }
+            println()
+        }
+    }
+}
+
+fun main() {
+    val scanStdin = Scanner(System.`in`)
+    val menu = readMenu(scanStdin)
+
+    deleteSubmenus.forEach { menu.remove(it) }
+    newSubmenus.forEach {
+        menu[it.first] = Pair(it.second, mutableListOf())
+    }
+
+    for (m in moves) {
+        if (menu.containsKey(m.second)) {
+            val w = menu[m.second]?.let { findEntries(m.first, it) }
+            if (w != null) {
+                deletions.addAll(w.map { Pair(it, m.second) })
+                appendix.addAll(w.map { Pair(it, m.third) })
+            }
+        }
+    }
+
+    for (d in deletions) {
+        if (d.second == null) {
+            menu.map { submenu ->
+                submenu.value.second.removeIf { it.contains(d.first) }
+            }
+        } else {
+            menu[d.second]?.second?.removeIf { it.contains(d.first) }
+        }
+    }
+
+    for (a in appendix) {
+        menu[a.second]?.second?.addLast(a.first)
+    }
+
+    printMenu(menu)
+
+}