public Value matchPositions(Value str) {
PatternMatcher matcher = getMatcher();
// Do the matching
PatternMatcherInput jStr = new PatternMatcherInput(string(str));
Pair result = null;
Pair prev = null;
boolean found = false;
while (matcher.contains(jStr, pattern)) {
found = true;
MatchResult matchResult = matcher.getMatch();
for (int i = 0, length = matchResult.groups(); i < length; i++) {
Pair m =
new Pair(
Quantity.valueOf(matchResult.beginOffset(i)),
Quantity.valueOf(matchResult.endOffset(i)));
Pair elem = new Pair(m, EMPTYLIST);
if (result == null) result = prev = elem;
else {
prev.setCdr(elem);
prev = elem;
}
}
}
if (!found) return FALSE;
else return result;
}
public Value apply(Value v1) throws ContinuationException {
switch (id) {
case DIRECTORYQ:
return SchemeBoolean.get(fileHandle(v1).isDirectory());
case FILEQ:
return SchemeBoolean.get(fileHandle(v1).isFile());
case HIDDENQ:
return SchemeBoolean.get(fileHandle(v1).isHidden());
case READABLE:
return SchemeBoolean.get(fileHandle(v1).canRead());
case WRITEABLE:
return SchemeBoolean.get(fileHandle(v1).canWrite());
case DIRLIST:
Pair p = EMPTYLIST;
String[] contents = fileHandle(v1).list();
if (contents == null)
throwPrimException(liMessage(IO.IOB, "nosuchdirectory", SchemeString.asString(v1)));
for (int i = contents.length - 1; i >= 0; i--)
p = new Pair(new SchemeString(contents[i]), p);
return p;
case LENGTH:
return Quantity.valueOf(fileHandle(v1).length());
case LASTMODIFIED:
return Quantity.valueOf(fileHandle(v1).lastModified());
case GETPARENTURL:
try {
return new SchemeString(fileHandle(v1).getParentFile().toURI().toURL().toString());
} catch (MalformedURLException m) {
m.printStackTrace();
}
break;
default:
throwArgSizeException();
}
return VOID;
}