/**
* Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
* <p/>
* BuildCraft is distributed under the terms of the Minecraft Mod Public
* License 1.0, or MMPL. Please check the contents of the license located in
* http://www.mod-buildcraft.com/MMPL-1.0.txt
*/
package buildcraft.core.blueprints;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
public class BptDataStream implements DataInput, DataOutput {
public boolean isFirst = true;
private Writer writer;
private Reader reader;
public BptDataStream(Writer writer) {
this.writer = writer;
}
public BptDataStream(Reader reader) {
this.reader = reader;
}
@Override
public void readFully(byte[] b) throws IOException {
char[] c = new char[b.length];
reader.read(c);
for (int i = 0; i < b.length; ++i) {
b[i] = (byte) c[i];
}
}
@Override
public void readFully(byte[] b, int off, int len) throws IOException {
char[] c = new char[len];
reader.read(c);
for (int i = 0; i < len; ++i) {
b[off + i] = (byte) c[i];
}
}
@Override
public int skipBytes(int n) throws IOException {
return reader.read(new char[n]);
}
@Override
public boolean readBoolean() throws IOException {
String s = readUTF();
return "T".equals(s);
}
@Override
public byte readByte() throws IOException {
return (byte) readLong();
}
@Override
public int readUnsignedByte() throws IOException {
return (short) readLong();
}
@Override
public short readShort() throws IOException {
return (short) readLong();
}
@Override
public int readUnsignedShort() throws IOException {
return (int) readLong();
}
@Override
public char readChar() throws IOException {
return readUTF().charAt(0);
}
@Override
public int readInt() throws IOException {
return (int) readLong();
}
@Override
public long readLong() throws IOException {
StringBuilder builder = new StringBuilder();
boolean exit = false;
while (!exit) {
int i = reader.read();
if (i < 0) {
break;
}
char c = (char) i;
switch (c) {
case ',':
exit = true;
break;
default:
builder.append(c);
}
}
return Long.parseLong(builder.toString());
}
@Override
public float readFloat() throws IOException {
return (float) readDouble();
}
@Override
public double readDouble() throws IOException {
StringBuilder builder = new StringBuilder();
boolean exit = false;
while (!exit) {
int i = reader.read();
if (i < 0) {
break;
}
char c = (char) i;
switch (c) {
case ',':
exit = true;
break;
default:
builder.append(c);
}
}
return Double.parseDouble(builder.toString());
}
@Override
public String readLine() throws IOException {
return null;
}
@Override
public String readUTF() throws IOException {
StringBuilder builder = new StringBuilder();
boolean exit = false;
char c = (char) reader.read();
if (c != '\"') {
throw new IOException("String does not start with '\"' character");
}
while (reader.ready() && !exit) {
c = (char) reader.read();
switch (c) {
case '\\':
c = (char) reader.read();
switch (c) {
case 'n':
builder.append('\n');
break;
case 'r':
builder.append('\r');
break;
case '\\':
builder.append('\\');
break;
case '\"':
builder.append('\"');
break;
}
break;
case '"':
exit = true;
break;
default:
builder.append(c);
}
}
int i = reader.read();
c = (char) i;
if (c != ',' && i > 0) {
throw new IOException("Missing ',' at end of attribute");
} else {
return builder.toString();
}
}
@Override
public void write(int b) throws IOException {
}
@Override
public void write(byte[] b) throws IOException {
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
}
@Override
public void writeBoolean(boolean v) throws IOException {
if (v) {
writeUTF("T");
} else {
writeUTF("F");
}
}
@Override
public void writeByte(int v) throws IOException {
writeLong(v);
}
@Override
public void writeShort(int v) throws IOException {
writeLong(v);
}
@Override
public void writeChar(int v) throws IOException {
writeUTF(((char) v) + "");
}
@Override
public void writeInt(int v) throws IOException {
writeLong(v);
}
@Override
public void writeLong(long v) throws IOException {
handleWriteComma();
writer.append(Long.toString(v));
}
@Override
public void writeFloat(float v) throws IOException {
writeDouble(v);
}
@Override
public void writeDouble(double v) throws IOException {
handleWriteComma();
writer.append(Double.toString(v));
}
@Override
public void writeBytes(String s) throws IOException {
writeUTF(s);
}
@Override
public void writeChars(String s) throws IOException {
writeUTF(s);
}
@Override
public void writeUTF(String s) throws IOException {
handleWriteComma();
writer.write("\"");
for (char c : s.toCharArray()) {
switch (c) {
case '\n':
writer.write("\\n");
break;
case '\r':
writer.write("\\r");
break;
case '\"':
writer.write("\\\"");
break;
case '\\':
writer.write("\\\\");
break;
default:
writer.write(c);
break;
}
}
writer.write("\"");
}
private void handleWriteComma() throws IOException {
if (!isFirst) {
writer.append(",");
}
isFirst = false;
}
}