+ Added localization support for commands

src/core/LocBase.java

@@ -0,0 +1,190 @@
+package core;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.charset.Charset;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import dataStructures.SectionedKeyValueStore;
+import utils.FileUtils;
+import utils.GlobalLog;
+import utils.LogFilter;
+
+// A quick-and-dirty localization tool that scrapes the project for calls to itself, then
+// generates/updates a file externally with all the stub values as keys that are localized.
+public abstract class LocBase
+{
+	// Pre-defined values 
+	public static final String KittySourceDirectory = "./src";
+	
+	// Filename
+	public final String filename; // Example: "localization.config"; 
+	public final String functionName; // Example: "Localizer.Stub";
+	
+	// Local translation storage
+	private SectionedKeyValueStore stringStore; 
+	
+	// Logging
+	private void Log(String str) { GlobalLog.Log(LogFilter.Strings, str); }
+	private void Warn(String str) { GlobalLog.Warn(LogFilter.Strings, str); }
+	private void Error(String str) { GlobalLog.Error(LogFilter.Strings, str); }
+	
+	// Ok... so this is an array because if it's not an array, the parser will parse the string 
+	public LocBase(String filename, String functionName)
+	{
+		this.filename = filename;
+		this.functionName = functionName;
+	}
+	
+	// Structure used for holding a pair of strings and any other info we need 
+	// about localized information that is being looked up.
+	private class LocInfo
+	{
+		public String file;
+		public String phrase;
+		
+		public LocInfo(String f, String p)
+		{
+			this.file = f;
+			this.phrase = p;
+		}
+	}
+	
+	// Do processing on each path in the scraped directory here, assuming it's .java
+	public void StripForContents(Path path, ArrayList<LocInfo> strings)
+	{
+		String filename = path.getFileName().toString();
+		if(filename.contains(".java"))
+		{
+			String contents = FileUtils.ReadContent(path);
+			String[] split = contents.split(functionName);
+			
+			// Identify all localizer function calls
+			for(int i = 1; i < split.length; ++i)
+			{
+				int loc = split[i].indexOf(")");
+				String noWhitespace = split[i].replaceAll("\\s+","");
+				
+				if(loc != -1)
+				{
+					if(noWhitespace.charAt(noWhitespace.indexOf(")") - 1) == '"' && split[i].charAt(loc - 2) != '\\')
+					{
+						// At this point, we find the first ), then verify there's a ") behind it, and that
+						// the " is not an escaped character.
+						try
+						{
+							String toLocalize = split[i].substring(2, loc - 1);
+							
+							strings.add(new LocInfo(filename.substring(0, filename.lastIndexOf('.')), toLocalize));
+							
+							Log("Found lookup call in " + path + ": " + toLocalize);
+						}
+						catch(IndexOutOfBoundsException e)
+						{
+							Warn("Found phrase but couldn't parse in file " + path);
+						}
+					}
+				}
+			}
+		}
+	}
+	
+	// Nothing for now, but in the future will return a parsed and localized version of
+	// the string in question if one can be found. If the localized string is empty, 
+	// returns a the key instead which is the default phrase.
+	public String GetKey(String input)
+	{
+		if(stringStore == null)
+			return input;
+		
+		String value = stringStore.GetKey(input);
+		if(value == null || value.trim().length() < 1)
+			return input;
+		
+		return value;
+	}
+	
+	// Reads a file to string, adapted from https://stackoverflow.com/a/326440/5383198
+	private String ReadFileAsString(String path, Charset encoding)
+	{
+		try
+		{
+			byte[] encoded = Files.readAllBytes(Paths.get(path));
+			return new String(encoded, encoding);
+		}
+		catch (IOException e)
+		{
+			Warn("No file found to read from!");
+		}
+		
+		return null;
+	}
+
+	// Update localization from the disk on file. Creates the file if it doesn't exist.
+	// This file is internally formatted as an ini file.
+	public void UpdateLocFromDisk()
+	{
+		Log("Attempting to read localization file: " + filename);
+		
+		try
+		{
+			String fileContents = ReadFileAsString(filename, Charset.defaultCharset());
+			
+			if(fileContents == null)
+			{
+				File file = new File(filename);
+				file.createNewFile();
+			}
+			
+			stringStore = new SectionedKeyValueStore(fileContents);
+		}
+		catch(IOException e)
+		{
+			Error("IO exception during localization file read");
+		}
+	}
+	
+	// Rewrites out at the specified filename with existing stubs.
+	// This preserves existing localized phrases.
+	public void SaveLocToDisk()
+	{
+		Log("Attempting to write updated localization file");
+		
+		try
+		{	
+			PrintWriter pw = new PrintWriter(filename);
+			pw.println(stringStore.toString());
+			pw.close();
+		}
+		catch(IOException e)
+		{
+			Error("IO exception during localization file write");
+		}
+	}
+
+	private void TryStripSpecified(Path path, ArrayList<LocInfo> toFill)
+	{
+		try
+		{
+			StripForContents(path, toFill);
+		}
+		catch(Exception e)
+		{
+			Error("issue with file: " + path.toString());
+		}
+	}
+	
+	// Scrape the project and generate all the possible localizeable phrases.
+	// This stubs out phrases to be localized.
+	public void ScrapeAll()
+	{
+		ArrayList<LocInfo> localizeList = new ArrayList<LocInfo>();
+		FileUtils.AcquireAllFiles(KittySourceDirectory).forEach((path) -> TryStripSpecified(path, localizeList));
+				
+		for(LocInfo toStub : localizeList)
+			stringStore.AddKeyValue(toStub.file, toStub.phrase, toStub.phrase);
+	}
+}