public static abstract class Input<Token> implements edu.berkeley.sbp.Input<Token> {
- public abstract Token next() throws IOException;
+ public abstract Token _next() throws IOException;
public abstract boolean isCR();
long then = 0;
private Cartesian.Location location = new Cartesian.Location(0, 1);
public edu.berkeley.sbp.Input.Location getLocation() { return location; }
- public Token next(int numstates, int resets, int waits) throws IOException {
+ public Token next() throws IOException {
int line = location.getRow();
int col = location.getCol();
- Token t = next();
+ Token t = _next();
if (t==null) return null;
String s = " line "+line+", col " + col;
while(s.length() < 20) s += " ";
- s += "[ambiguity level: " + (numstates-1) + "] [resets: " + resets + "] [waits: " + waits + "]";
+ //s += "[ambiguity level: " + (numstates-1) + "] [resets: " + resets + "] [waits: " + waits + "]";
long now = System.currentTimeMillis();
if (now-then > 10) {
then = now;
if (col > c.col) return 1;
return 0;
}
+ public Input.Region<Tok> createRegion(Input.Location<Tok> loc) {
+ return new Region<Tok>(this, (Cartesian.Location<Tok>)loc); }
+ }
+
+ public static class Region<Tok> implements Input.Region<Tok> {
+ public final Location<Tok> start;
+ public final Location<Tok> end;
+ public String toString() {
+ if (start.row==end.row) return start.row+":"+(start.col+"-"+end.col);
+ return start+"-"+end;
+ }
+ public Region(Location<Tok> a, Location<Tok> b) {
+ switch(a.compareTo(b)) {
+ case -1:
+ case 0: start=a; end=b; return;
+ case 1: start=b; end=a; return;
+ default: throw new Error("impossible");
+ }
+ }
}
}