public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
throws IOException {
if (m != null) m.reset(root.relativize(dir).toString());
return m == null || m.matches() || m.hitEnd()
? FileVisitResult.CONTINUE
: FileVisitResult.SKIP_SUBTREE;
}
/**
* Leave only the value for RCS keywords.
*
* <p>For example, <code>$Revision: 1.1 $</code> becomes <code>1.0</code>.
*/
public String replaceRcsKeywords(String text) {
if (matcher == null) {
matcher =
Pattern.compile(
"\\$(Author|Date|Header|Id|Locker|Log|Name|RCSFile|Revision|Source|State): (.+?) \\$")
.matcher(text);
} else {
matcher.reset(text);
}
StringBuffer buffer = new StringBuffer();
while (matcher.find()) {
String string = matcher.group(2);
// For the Date: keyword, have a shot at reformatting string
if ("Date".equals(matcher.group(1))) {
try {
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
Date date = dateFormat.parse(string);
string = date.toString();
} catch (ParseException e) {
} // if we can't parse, return unchanged
}
matcher.appendReplacement(buffer, string);
}
matcher.appendTail(buffer);
return buffer.toString();
}
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
if (attrs.isRegularFile()) {
if (m != null) m.reset(root.relativize(file).toString());
if (m == null || m.matches())
futures.add(exec.submit(new FileLoader(root, file, blocSize)));
}
return FileVisitResult.CONTINUE;
}
public static void main(String[] args) {
String[] msgs = {
"Java has regular expressions in 1.4",
"regular expressions now expressing in Java",
"Java represses oracular expressions"
};
Pattern p = Pattern.compile("re\\w*");
Matcher matcher = null;
for (int i = 0; i < msgs.length; i++) {
if (matcher == null) {
matcher = p.matcher(msgs[i]);
} else {
matcher.reset(msgs[i]);
}
System.out.println(matcher.replaceAll("¹þ¹þ\2"));
}
}
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
Matcher m =
Pattern.compile(
"(?<countryCode>\\d{1,3})"
+ "([ -])"
+ "(?<localAreaCode>\\d{1,3})"
+ "\\2"
+ "(?<number>\\d{4,10})")
.matcher("");
int N = Integer.parseInt(in.nextLine());
while (N-- > 0) {
String line = in.nextLine();
if (m.reset(line).matches()) {
String countryCode = m.group("countryCode");
String localAreaCode = m.group("localAreaCode");
String number = m.group("number");
String output =
"CountryCode=" + countryCode + ",LocalAreaCode=" + localAreaCode + ",Number=" + number;
System.out.println(output);
}
}
}