Make tr() a little faster (#2538)
* Make tr() a little faster * Make tr() a little faster - more consistent whitespace * Make tr() a little faster - fix translation file generator * Make tr() a little faster - adapted unit tests
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4 changed files with 92 additions and 33 deletions
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@ -4,11 +4,10 @@ import java.util.HashMap
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class TranslationEntry(val entry: String) : HashMap<String, String>() {
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/** For memory performance on .tr(), which was atrociously memory-expensive */
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var entryWithShortenedSquareBrackets =""
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init {
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if(entry.contains('['))
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entryWithShortenedSquareBrackets=entry.replace(squareBraceRegex,"[]")
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}
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// Now stored in the key of the hashmap storing the instances of this class
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// /** For memory performance on .tr(), which was atrociously memory-expensive */
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// val entryWithShortenedSquareBrackets =
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// if (entry.contains('['))
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// entry.replace(squareBraceRegex,"[]")
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// else ""
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}
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@ -76,14 +76,22 @@ object TranslationFileWriter {
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}
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val translationKey = line.split(" = ")[0].replace("\\n", "\n")
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val hashMapKey = if (translationKey.contains('['))
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translationKey.replace(squareBraceRegex,"[]")
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else translationKey
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var translationValue = ""
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val translationEntry = translations[translationKey]
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val translationEntry = translations[hashMapKey]
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if (translationEntry != null && translationEntry.containsKey(language)) {
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translationValue = translationEntry[language]!!
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translationsOfThisLanguage++
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} else stringBuilder.appendln(" # Requires translation!")
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// Testing assertion only
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if (translationEntry != null && translationEntry.entry != translationKey) {
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println("Assertion failure in generateTranslationFiles: translationEntry.entry != translationKey")
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}
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val lineToWrite = translationKey.replace("\n", "\\n") +
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" = " + translationValue.replace("\n", "\\n")
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stringBuilder.appendln(lineToWrite)
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@ -144,7 +152,10 @@ object TranslationFileWriter {
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val jsonParser = JsonParser()
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val folderHandler = if(modFolder!=null) getFileHandle(modFolder,"jsons")
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else getFileHandle(modFolder, "jsons/Civ V - Vanilla")
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val listOfJSONFiles = folderHandler.list{file -> file.name.endsWith(".json", true)}
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val listOfJSONFiles = folderHandler
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.list{file -> file.name.endsWith(".json", true)}
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.sortedBy { it.name() } // generatedStrings maintains order, so let's feed it a predictable one
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for (jsonFile in listOfJSONFiles)
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{
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val filename = jsonFile.nameWithoutExtension()
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@ -52,12 +52,17 @@ class Translations : LinkedHashMap<String, TranslationEntry>(){
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}
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for (translation in languageTranslations) {
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if (!containsKey(translation.key))
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this[translation.key] = TranslationEntry(translation.key)
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// The key for placeholder-containing entries was unused before, let's make it useful
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// What was previously stored as entryWithShortenedSquareBrackets is now the key
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val hashKey = if (translation.key.contains('['))
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translation.key.replace(squareBraceRegex,"[]")
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else translation.key
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if (!containsKey(hashKey))
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this[hashKey] = TranslationEntry(translation.key)
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// why not in one line, Because there were actual crashes.
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// I'm pretty sure I solved this already, but hey double-checking doesn't cost anything.
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val entry = this[translation.key]
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val entry = this[hashKey]
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if (entry!=null) entry[language] = translation.value
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}
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@ -137,11 +142,31 @@ class Translations : LinkedHashMap<String, TranslationEntry>(){
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}
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}
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val squareBraceRegex = Regex("\\[(.*?)\\]") // we don't need to allocate different memory for this every time we .tr()
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val eitherSquareBraceRegex=Regex("\\[|\\]")
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// we don't need to allocate different memory for these every time we .tr() - or recompile them.
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// Expect a literal [ followed by a captured () group and a literal ].
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// The group may contain any number of any character except ] - pattern [^]]
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val squareBraceRegex = Regex("""\[([^]]*)]""")
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// Just look for either [ or ]
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val eitherSquareBraceRegex = Regex("""\[|]""")
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// Analogous as above: Expect a {} pair with any chars but } in between and capture that
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val curlyBraceRegex = Regex("""\{([^}]*)}""")
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fun String.tr(): String {
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// Latest optimizations: cached precompiled curlyBraceRegex and converted loop-based placeholder
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// lookup into hash key lookup. Test result: 50s -> 24s
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// *Discarded optimizations*:
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// String.indexOf(Char) looks like it might be better than String.contains(String),
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// (Char test should be cheaper than string comparison, and contains delegates to indexOf anyway)
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// but measurements are equal within margin of error.
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// Making our get() overload do two hash lookups instead of up to five: Zero difference.
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// val entry: TranslationEntry = this[text] ?: return text
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// return entry[language] ?: text
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// THIS IS INCREDIBLY INEFFICIENT and causes loads of memory problems!
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if (contains("[")) { // Placeholders!
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@ -158,10 +183,10 @@ fun String.tr(): String {
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* We will find the german placeholder text, and replace the placeholders with what was filled in the text we got!
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*/
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val translationStringWithSquareBracketsOnly = replace(squareBraceRegex,"[]")
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val translationEntry = UncivGame.Current.translations.values
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.firstOrNull { translationStringWithSquareBracketsOnly == it.entryWithShortenedSquareBrackets }
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// Convert "work on [building] has completed in [city]" to "work on [] has completed in []"
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val translationStringWithSquareBracketsOnly = this.replace(squareBraceRegex,"[]")
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// That is now the key into the translation HashMap!
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val translationEntry = UncivGame.Current.translations[translationStringWithSquareBracketsOnly]
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if (translationEntry==null ||
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!translationEntry.containsKey(UncivGame.Current.settings.language)){
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@ -178,11 +203,11 @@ fun String.tr(): String {
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for (i in termsInMessage.indices) {
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languageSpecificPlaceholder = languageSpecificPlaceholder.replace(termsInTranslationPlaceholder[i], termsInMessage[i].tr())
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}
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return languageSpecificPlaceholder.tr()
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return languageSpecificPlaceholder // every component is already translated
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}
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if (contains("{")) { // sentence
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return Regex("\\{(.*?)\\}").replace(this) { it.groups[1]!!.value.tr() }
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return curlyBraceRegex.replace(this) { it.groups[1]!!.value.tr() }
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}
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return UncivGame.Current.translations
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@ -46,11 +46,13 @@ class TranslationTests {
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}
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private fun allStringAreTranslated(strings: Set<String>): Boolean {
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val squareBraceRegex = Regex("""\[([^]]*)]""")
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var allStringsHaveTranslation = true
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for (key in strings) {
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for (entry in strings) {
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val key = if(entry.contains('[')) entry.replace(squareBraceRegex,"[]") else entry
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if (!translations.containsKey(key)) {
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allStringsHaveTranslation = false
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println(key)
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println(entry)
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}
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}
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return allStringsHaveTranslation
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@ -72,12 +74,14 @@ class TranslationTests {
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var allTranslationsHaveCorrectPlaceholders = true
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val languages = translations.getLanguages()
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for (key in translations.keys) {
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val placeholders = placeholderPattern.findAll(key).map { it.value }.toList()
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val translationEntry = translations[key]!!.entry
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val placeholders = placeholderPattern.findAll(translationEntry).map { it.value }.toList()
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for (language in languages) {
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for (placeholder in placeholders) {
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if (!translations.get(key, language).contains(placeholder)) {
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val output = translations.get(translationEntry, language)
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if (!output.contains(placeholder)) {
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allTranslationsHaveCorrectPlaceholders = false
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println("Placeholder `$placeholder` not found in `$language` for key `$key`")
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println("Placeholder `$placeholder` not found in `$language` for entry `$translationEntry`")
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}
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}
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}
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@ -88,6 +92,26 @@ class TranslationTests {
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)
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}
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@Test
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fun allPlaceholderKeysMatchEntry() {
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val squareBraceRegex = Regex("""\[([^]]*)]""")
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var allPlaceholderKeysMatchEntry = true
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for (key in translations.keys) {
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if ( !key.contains('[') ) continue
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val translationEntry = translations[key]!!.entry
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val keyFromEntry = translationEntry.replace(squareBraceRegex,"[]")
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if (key != keyFromEntry) {
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allPlaceholderKeysMatchEntry = false
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println("Entry $translationEntry found under bad key $key")
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break
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}
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}
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Assert.assertTrue(
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"This test will only pass when all placeholder translations'keys match their entry with shortened placeholders",
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allPlaceholderKeysMatchEntry
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)
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}
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@Test
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fun allTranslationsEndWithASpace() {
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val templateLines = Gdx.files.internal(TranslationFileWriter.templateFileLocation).reader().readLines()
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