package com.aptana.js.interactive_console.console;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.text.TextAttribute;
import com.aptana.interactive_console.console.ui.IConsoleStyleProvider;
import com.aptana.interactive_console.console.ui.ScriptStyleRange;
import com.aptana.js.interactive_console.console.prefs.ColorManager;
import com.aptana.shared_core.string.FastStringBuffer;
import com.aptana.shared_core.structure.Tuple;
/**
* @author fabioz
*
*/
public final class ConsoleStyleProvider implements IConsoleStyleProvider {
private class AnsiState {
private FastStringBuffer escBuf = new FastStringBuffer();
private FastStringBuffer buf = new FastStringBuffer();
private int state = 0;
private static final int STATE_DEFAULT = 0;
private static final int STATE_IN_ANSI = 1;
private TextAttribute prevAttribute;
}
private final AnsiState err = new AnsiState();
private final AnsiState out = new AnsiState();
private ScriptStyleRange getIt(String content, int offset, TextAttribute attr, int scriptStyle) {
//background is the default (already set)
return new ScriptStyleRange(offset, content.length(), attr.getForeground(), null, scriptStyle, attr.getStyle());
}
public Tuple<List<ScriptStyleRange>, String> createInterpreterStdStyle(String content, int offset,
AnsiState ansiState, ColorManager colorManager, TextAttribute attr, int style) {
Tuple<List<ScriptStyleRange>, String> ret = new Tuple<List<ScriptStyleRange>, String>(
new ArrayList<ScriptStyleRange>(), "");
FastStringBuffer retBuf = new FastStringBuffer();
if (ansiState.prevAttribute == null) {
ansiState.prevAttribute = attr;
}
int len = content.length();
for (int i = 0; i < len; i++) {
char c = content.charAt(i);
if (ansiState.state == AnsiState.STATE_IN_ANSI) {
ansiState.escBuf.append(c);
if (!Character.isDigit(c) && c != ';' && c != '[') {
String str = ansiState.escBuf.toString();
ansiState.prevAttribute = colorManager.getAnsiTextAttribute(str, ansiState.prevAttribute, attr);
ansiState.escBuf.clear();
ansiState.state = AnsiState.STATE_DEFAULT;
}
} else {
if (c == '\u001B') {
int bufLen = ansiState.buf.length();
if (bufLen > 0) {
ret.o1.add(getIt(ansiState.buf.toString(), offset, ansiState.prevAttribute, style));
retBuf.append(ansiState.buf);
offset += bufLen;
ansiState.buf.clear();
}
ansiState.state = AnsiState.STATE_IN_ANSI;
} else {
ansiState.buf.append(c);
}
}
}
int bufLen = ansiState.buf.length();
if (bufLen > 0) {
ret.o1.add(getIt(ansiState.buf.toString(), offset, ansiState.prevAttribute, style));
retBuf.append(ansiState.buf);
offset += bufLen;
ansiState.buf.clear();
}
ret.o2 = retBuf.toString();
return ret;
}
public Tuple<List<ScriptStyleRange>, String> createInterpreterErrorStyle(String content, int offset) {
ColorManager colorManager = ColorManager.getDefault();
TextAttribute attr = colorManager.getConsoleErrorTextAttribute();
return createInterpreterStdStyle(content, offset, err, colorManager, attr, ScriptStyleRange.STDERR);
}
public Tuple<List<ScriptStyleRange>, String> createInterpreterOutputStyle(String content, int offset) {
ColorManager colorManager = ColorManager.getDefault();
TextAttribute attr = colorManager.getConsoleOutputTextAttribute();
return createInterpreterStdStyle(content, offset, out, colorManager, attr, ScriptStyleRange.STDOUT);
}
public ScriptStyleRange createPromptStyle(String content, int offset) {
TextAttribute attr = ColorManager.getDefault().getConsolePromptTextAttribute();
return getIt(content, offset, attr, ScriptStyleRange.PROMPT);
}
public ScriptStyleRange createUserInputStyle(String content, int offset) {
TextAttribute attr = ColorManager.getDefault().getConsoleInputTextAttribute();
return getIt(content, offset, attr, ScriptStyleRange.STDIN);
}
}