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Configuration will now attempt to detect the encoding of the file using the Byte Order Mark.

This commit is contained in:
LexManos 2012-09-24 20:56:52 -07:00
parent 8c74d81103
commit 1804f22182
1 changed files with 77 additions and 11 deletions
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88
common/net/minecraftforge/common/Configuration.java
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@ -5,14 +5,7 @@
package net.minecraftforge.common;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.*;
import java.text.DateFormat;
import java.util.Collection;
import java.util.Date;
@ -50,6 +43,8 @@ public class Configuration
private Map<String,String> customCategoryComments = Maps.newHashMap();
private boolean caseSensitiveCustomCategories;
public static final String ALLOWED_CHARS = "._-";
public static final String DEFAULT_ENCODING = "UTF-8";
public String defaultEncoding = DEFAULT_ENCODING;
private static final CharMatcher allowedProperties = CharMatcher.JAVA_LETTER_OR_DIGIT.or(CharMatcher.anyOf(ALLOWED_CHARS));
@ -203,8 +198,9 @@ public class Configuration
if (file.canRead())
{
FileInputStream fileinputstream = new FileInputStream(file);
buffer = new BufferedReader(new InputStreamReader(fileinputstream, "UTF-8"));
UnicodeInputStreamReader input = new UnicodeInputStreamReader(new FileInputStream(file), defaultEncoding);
defaultEncoding = input.getEncoding();
buffer = new BufferedReader(input);
String line;
Map<String, Property> currentMap = null;
@ -254,6 +250,7 @@ public class Configuration
quoted = true;
}
break;
case '{':
String scopeName = line.substring(nameStart, nameEnd + 1);
@ -332,7 +329,7 @@ public class Configuration
if (file.canWrite())
{
FileOutputStream fos = new FileOutputStream(file);
BufferedWriter buffer = new BufferedWriter(new OutputStreamWriter(fos, "UTF-8"));
BufferedWriter buffer = new BufferedWriter(new OutputStreamWriter(fos, defaultEncoding));
buffer.write("# Configuration file\r\n");
buffer.write("# Generated on " + DateFormat.getInstance().format(new Date()) + "\r\n");
@ -403,4 +400,73 @@ public class Configuration
buffer.write("\r\n");
}
}
public static class UnicodeInputStreamReader extends Reader
{
private final InputStreamReader input;
private final String defaultEnc;
public UnicodeInputStreamReader(InputStream source, String encoding) throws IOException
{
defaultEnc = encoding;
String enc = encoding;
byte[] data = new byte[4];
PushbackInputStream pbStream = new PushbackInputStream(source, data.length);
int read = pbStream.read(data, 0, data.length);
int size = 4;
int bom16 = (data[0] & 0xFF) << 8 | (data[1] & 0xFF);
int bom24 = bom16 << 8 | (data[2] & 0xFF);
int bom32 = bom24 << 8 | (data[3] & 0xFF);
if (bom24 == 0xEFBBBF)
{
enc = "UTF-8";
size = 3;
}
else if (bom16 == 0xFEFF)
{
enc = "UTF-16BE";
size = 2;
}
else if (bom16 == 0xFFFE)
{
enc = "UTF-16LE";
size = 2;
}
else if (bom32 == 0x0000FEFF)
{
enc = "UTF-32BE";
}
else if (bom32 == 0xFFFE0000) //This will never happen as it'll be caught by UTF-16LE,
{ //but if anyone ever runs across a 32LE file, i'd like to disect it.
enc = "UTF-32LE";
}
if (size < read)
{
pbStream.unread(data, size, read - size);
}
this.input = new InputStreamReader(pbStream, enc);
}
public String getEncoding()
{
return input.getEncoding();
}
@Override
public int read(char[] cbuf, int off, int len) throws IOException
{
return input.read(cbuf, off, len);
}
@Override
public void close() throws IOException
{
input.close();
}
}
}