HackStudio: Create Language enum from file extension or language name

Userland/DevTools/HackStudio/CMakeLists.txt

@@ -27,6 +27,7 @@ set(SOURCES
     Git/GitRepo.cpp
     Git/GitWidget.cpp
     HackStudioWidget.cpp
+    Language.cpp
     LanguageClient.cpp
     Locator.cpp
     Project.cpp

Userland/DevTools/HackStudio/CodeDocument.cpp

@@ -42,18 +42,7 @@ CodeDocument::CodeDocument(const String& file_path, Client* client)
     : TextDocument(client)
     , m_file_path(file_path)
 {
-    LexicalPath lexical_path(file_path);
-
-    if (lexical_path.has_extension(".cpp") || lexical_path.has_extension(".h"))
-        m_language = Language::Cpp;
-    else if (lexical_path.has_extension(".js"))
-        m_language = Language::JavaScript;
-    else if (lexical_path.has_extension(".gml"))
-        m_language = Language::GML;
-    else if (lexical_path.has_extension(".ini"))
-        m_language = Language::Ini;
-    else if (lexical_path.has_extension(".sh"))
-        m_language = Language::Shell;
+    m_language = language_from_file_extension(LexicalPath { file_path }.extension());
 }
 
 CodeDocument::CodeDocument(Client* client)

Userland/DevTools/HackStudio/Language.cpp

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "Language.h"
+
+namespace HackStudio {
+
+Language language_from_file_extension(const String& extension)
+{
+    VERIFY(!extension.starts_with("."));
+    if (extension == "cpp" || extension == "h")
+        return Language::Cpp;
+    else if (extension == "js")
+        return Language::JavaScript;
+    else if (extension == "gml")
+        return Language::GML;
+    else if (extension == "ini")
+        return Language::Ini;
+    else if (extension == "sh")
+        return Language::Shell;
+
+    return Language::Unknown;
+}
+
+Language language_from_name(const String& name)
+{
+    if (name == "Cpp")
+        return Language::Cpp;
+    if (name == "Javascript")
+        return Language::JavaScript;
+    if (name == "Shell")
+        return Language::Shell;
+
+    return Language::Unknown;
+}
+
+}

Userland/DevTools/HackStudio/Language.h

@@ -26,6 +26,8 @@
 
 #pragma once
 
+#include <AK/String.h>
+
 namespace HackStudio {
 enum class Language {
     Unknown,
@@ -35,4 +37,8 @@ enum class Language {
     Ini,
     Shell,
 };
+
+Language language_from_file_extension(const String&);
+Language language_from_name(const String&);
+
 }