diff --git a/src/main/kotlin/main/Main.kt b/src/main/kotlin/main/Main.kt
index 75ee2ae..8268642 100644
--- a/src/main/kotlin/main/Main.kt
+++ b/src/main/kotlin/main/Main.kt
@@ -150,7 +150,7 @@ fun app() {
                     },
                     onJavaScriptClick = {
                         selectFile(jsExtensions) { filePath ->
-                            println("JavaScript file selected: $filePath") // Change by parser functions
+                            parser(filePath) // Change by parser functions
                         }
                     }
                 )
@@ -163,8 +163,11 @@ fun app() {
 fun selectFile(extensions: Set<String>, onFileSelected: (String) -> Unit) {
     val fileDialog = FileDialog(Frame(), "Select a file", FileDialog.LOAD)
     fileDialog.isMultipleMode = false // To enable selecting only one file
+    fileDialog.file = "*." + extensions.joinToString(";*.")
     fileDialog.isVisible = true
 
+
+
     val selectedFile = fileDialog.file
     val selectedDirectory = fileDialog.directory
 
diff --git a/src/main/kotlin/main/parser.kt b/src/main/kotlin/main/parser.kt
new file mode 100644
index 0000000..b8803d6
--- /dev/null
+++ b/src/main/kotlin/main/parser.kt
@@ -0,0 +1,68 @@
+package main
+
+import java.io.File
+
+
+fun delStrings(line : String) : String {
+    val regex = "\".*?\"".toRegex()
+    return regex.replace(line, "")
+}
+
+fun takeOnlyJs(fileName: String): String {
+    val extension = fileName.split(".")[1]
+    if ("html" == extension){
+        return File(fileName).readText().split("<script>")[1].split("</script>")[0]
+    }
+    return File(fileName).readText()
+}
+
+fun jsWords(code : Map<String,Int>) : Map<String,Int>{
+    val js = File("C:\\Users\\thoma\\Desktop\\sample.txt").readText().toString().split(",")
+
+    return code.filter { it.key !in js }
+}
+
+fun splitLanguages(file : String){
+    val extension = file.split(".")[1]
+    if ("html" == extension) {
+        val js = File(file).readText().split("<script>")[1].split("</script>")[0]
+        val css = File(file).readText().split("<style>")[1].split("</style>")[0]
+        val newHtml = File(file).readText().replace("<script>$js</script>", "<script src=\"javascript.js\"></script>")
+            .replace("<style>$css</style>", "<link href=\"css.css\" rel=\"stylesheet\" />")
+
+
+        if (js != "") {
+            File("C:\\Users\\thoma\\Desktop\\test2\\javascript.js").writeText(js)
+        }
+
+        if (newHtml != File(file).readText()) {
+            File("C:\\Users\\thoma\\Desktop\\test2\\html.html").writeText(newHtml)
+        }
+        if (css != "") {
+            File("C:\\Users\\thoma\\Desktop\\test2\\css.css").writeText(css)
+        }
+    }
+
+}
+
+
+
+fun parser(fileName : String) {
+    val delimiter1 = " "
+    val regex = "[^a-zA-Z]".toRegex()
+    val array = mutableListOf<String>()
+
+    val line = delStrings(takeOnlyJs(fileName)).toString().replace(regex, " ").toString()
+    line.split(delimiter1).forEach {
+
+        if (it != "") {
+            array.add(it)
+        }
+    }
+    val map = jsWords(array.groupingBy { it }.eachCount())
+
+    val sortedMap = map.toList().take(10).sortedBy { (_, value) -> value }.toMap()
+    sortedMap.forEach() { (t, u) -> println("$t : $u") } // affiche le nombre d'occurence de chaque mot
+
+}
+