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/*-------------------------------------------------------------------------
Trace.java -- Trace Output Class
Compiler Generator Coco/R,
Copyright (c) 1990, 2004 Hanspeter Moessenboeck, University of Linz
extended by M. Loeberbauer & A. Woess, Univ. of Linz
ported from C# to Java by Wolfgang Ahorner
with improvements by Pat Terry, Rhodes University
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
As an exception, it is allowed to write an extension of Coco/R that is
used as a plugin in non-free software.
If not otherwise stated, any source code generated by Coco/R (other than
Coco/R itself) does not fall under the GNU General Public License.
------------------------------------------------------------------------*/
package Coco;
import java.io.PrintWriter; /* pdt */
import java.io.BufferedWriter; /* pdt */
import java.io.FileWriter; /* pdt */
import java.io.IOException;
import java.io.File;
public class Trace {
File file; /* pdt */
PrintWriter w;
private void CheckOpen() {
if (w == null) {
try {
w = new PrintWriter(new BufferedWriter(new FileWriter(file, false))); /* pdt */
} catch (IOException e) {
throw new FatalError("Could not open " + file.getPath());
}
}
}
public Trace (String dir) {
file = new File(dir, "trace.txt"); /* pdt */
}
// returns a string with a minimum length of |w| characters
// the string is left-adjusted if w < 0 and right-adjusted otherwise
public String formatString(String s, int w) {
int size = s.length();
StringBuffer b = new StringBuffer();
if (w >= 0) {
for (int i = 0; i < w - size; i++) b.append(" ");
return (b.toString() + s);
} else {
for (int i = w; i < -size; i++) b.append(" ");
return (s + b.toString());
}
}
public void Write (String s) {
CheckOpen(); w.print(s);
}
// writes a string with a minimum length of |w| characters
public void Write(String s, int w) {
Write(formatString(s, w));
}
public void WriteLine () {
CheckOpen(); w.println();
}
public void WriteLine (String s) {
CheckOpen(); w.println(s);
}
public void WriteLine(String s, int w) {
CheckOpen(); WriteLine(formatString(s, w));
}
public void Close () { /* pdt */
if (w != null) {
w.close();
System.out.println("trace output is in " + file.getPath());
}
}
}
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