import java.math.*;
import javax.imageio.*;
import java.awt.image.*;
import java.awt.event.*;
import java.awt.*;
import java.security.spec.*;
import java.security.*;
import java.lang.management.*;
import java.lang.ref.*;
import java.lang.reflect.*;
import java.net.*;
import java.io.*;
import javax.swing.table.*;
import javax.swing.text.*;
import javax.swing.event.*;
import javax.swing.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.*;
import java.util.regex.*;
import java.util.List;
import java.util.zip.*;
import java.util.*;
public class main {
static String formatSnippetID(String id) {
return "#" + parseSnippetID(id);
}
static String formatSnippetID(long id) {
return "#" + id;
}
static class Matches {
String[] m;
String get(int i) { return m[i]; }
String unq(int i) { return unquote(m[i]); }
String fsi(int i) { return formatSnippetID(unq(i)); }
boolean bool(int i) { return "true".equals(unq(i)); }
String rest() { return m[m.length-1]; } // for matchStart
int psi(int i) { return Integer.parseInt(unq(i)); }
}
static String answer(String s) {
Matches m = new Matches();
if (matchStart("t", s, m) || matchStart("tinybrain search", s, m)) try {
String query = m.rest().trim();
List<String> l = new ArrayList<String>();
for (String[] idTitle : search2(query))
l.add(idTitle[0] + " - " + idTitle[1]);
return slackSnippet(fromLines(l));
} catch (Throwable __e) { return exceptionToUser(__e); }
return null;
}
// returns [{snippet ID, title}]
static List<String[]> search2(String query) {
String page = loadPage("http://tinybrain.de:8080/tb/search.php?q=" + urlencode(query));
Matcher m = Pattern.compile(">(#\\d+)</a> - (.*?)<br>").matcher(page);
List<String[]> results = new ArrayList<String[]>();
while (m.find())
results.add(new String[] {m.group(1), htmldecode(dropTags(m.group(2)))});
return results;
}
static boolean matchStart(String pat, String s) {
return matchStart(pat, s, null);
}
// matches are as you expect, plus an extra item for the rest string
static boolean matchStart(String pat, String s, Matches matches) {
if (s == null) return false;
List<String> tokpat = parse3(pat), toks = parse3(s);
if (toks.size() < tokpat.size()) return false;
String[] m = match2(tokpat, toks.subList(0, tokpat.size()));
//print(structure(tokpat) + " on " + structure(toks) + " => " + structure(m));
if (m == null)
return false;
else {
if (matches != null) {
matches.m = new String[m.length+1];
arraycopy(m, matches.m);
matches.m[m.length] = join(toks.subList(tokpat.size(), toks.size())); // for Matches.rest()
}
return true;
}
}
static String slackSnippet(Object contents) {
String s = str(contents);
return "```" + (empty(s) ? "\n" : s) + "```";
}
public static String fromLines(List<String> lines) {
StringBuilder buf = new StringBuilder();
if (lines != null)
for (String line : lines)
buf.append(line).append('\n');
return buf.toString();
}
// match2 matches multiple "*" (matches a single token) wildcards and zero or one "..." wildcards (matches multiple tokens)
static String[] match2(List<String> pat, List<String> tok) {
// standard case (no ...)
int i = pat.indexOf("...");
if (i < 0) return match2_match(pat, tok);
pat = new ArrayList<String>(pat); // We're modifying it, so copy first
pat.set(i, "*");
while (pat.size() < tok.size()) {
pat.add(i, "*");
pat.add(i+1, ""); // doesn't matter
}
return match2_match(pat, tok);
}
static String[] match2_match(List<String> pat, List<String> tok) {
List<String> result = new ArrayList<String>();
if (pat.size() != tok.size()) {
/*if (debug)
print("Size mismatch: " + structure(pat) + " vs " + structure(tok));*/
return null;
}
for (int i = 1; i < pat.size(); i += 2) {
String p = pat.get(i), t = tok.get(i);
/*if (debug)
print("Checking " + p + " against " + t);*/
if (eq(p, "*"))
result.add(t);
else if (!equalsIgnoreCase(unquote(p), unquote(t))) // bold change - match quoted and unquoted now
return null;
}
return result.toArray(new String[result.size()]);
}
static String htmldecode(final String input) {
if (input == null) return null;
final int MIN_ESCAPE = 2;
final int MAX_ESCAPE = 6;
StringWriter writer = null;
int len = input.length();
int i = 1;
int st = 0;
while (true) {
// look for '&'
while (i < len && input.charAt(i-1) != '&')
i++;
if (i >= len)
break;
// found '&', look for ';'
int j = i;
while (j < len && j < i + MAX_ESCAPE + 1 && input.charAt(j) != ';')
j++;
if (j == len || j < i + MIN_ESCAPE || j == i + MAX_ESCAPE + 1) {
i++;
continue;
}
// found escape
if (input.charAt(i) == '#') {
// numeric escape
int k = i + 1;
int radix = 10;
final char firstChar = input.charAt(k);
if (firstChar == 'x' || firstChar == 'X') {
k++;
radix = 16;
}
try {
int entityValue = Integer.parseInt(input.substring(k, j), radix);
if (writer == null)
writer = new StringWriter(input.length());
writer.append(input.substring(st, i - 1));
if (entityValue > 0xFFFF) {
final char[] chrs = Character.toChars(entityValue);
writer.write(chrs[0]);
writer.write(chrs[1]);
} else {
writer.write(entityValue);
}
} catch (NumberFormatException ex) {
i++;
continue;
}
}
else {
// named escape
CharSequence value = htmldecode_lookupMap.get(input.substring(i, j));
if (value == null) {
i++;
continue;
}
if (writer == null)
writer = new StringWriter(input.length());
writer.append(input.substring(st, i - 1));
writer.append(value);
}
// skip escape
st = j + 1;
i = st;
}
if (writer != null) {
writer.append(input.substring(st, len));
return writer.toString();
}
return input;
}
private static final String[][] htmldecode_ESCAPES = {
{"\"", "quot"}, // " - double-quote
{"&", "amp"}, // & - ampersand
{"<", "lt"}, // < - less-than
{">", "gt"}, // > - greater-than
// Mapping to escape ISO-8859-1 characters to their named HTML 3.x equivalents.
{"\u00A0", "nbsp"}, // non-breaking space
{"\u00A1", "iexcl"}, // inverted exclamation mark
{"\u00A2", "cent"}, // cent sign
{"\u00A3", "pound"}, // pound sign
{"\u00A4", "curren"}, // currency sign
{"\u00A5", "yen"}, // yen sign = yuan sign
{"\u00A6", "brvbar"}, // broken bar = broken vertical bar
{"\u00A7", "sect"}, // section sign
{"\u00A8", "uml"}, // diaeresis = spacing diaeresis
{"\u00A9", "copy"}, // copyright sign
{"\u00AA", "ordf"}, // feminine ordinal indicator
{"\u00AB", "laquo"}, // left-pointing double angle quotation mark = left pointing guillemet
{"\u00AC", "not"}, // not sign
{"\u00AD", "shy"}, // soft hyphen = discretionary hyphen
{"\u00AE", "reg"}, // registered trademark sign
{"\u00AF", "macr"}, // macron = spacing macron = overline = APL overbar
{"\u00B0", "deg"}, // degree sign
{"\u00B1", "plusmn"}, // plus-minus sign = plus-or-minus sign
{"\u00B2", "sup2"}, // superscript two = superscript digit two = squared
{"\u00B3", "sup3"}, // superscript three = superscript digit three = cubed
{"\u00B4", "acute"}, // acute accent = spacing acute
{"\u00B5", "micro"}, // micro sign
{"\u00B6", "para"}, // pilcrow sign = paragraph sign
{"\u00B7", "middot"}, // middle dot = Georgian comma = Greek middle dot
{"\u00B8", "cedil"}, // cedilla = spacing cedilla
{"\u00B9", "sup1"}, // superscript one = superscript digit one
{"\u00BA", "ordm"}, // masculine ordinal indicator
{"\u00BB", "raquo"}, // right-pointing double angle quotation mark = right pointing guillemet
{"\u00BC", "frac14"}, // vulgar fraction one quarter = fraction one quarter
{"\u00BD", "frac12"}, // vulgar fraction one half = fraction one half
{"\u00BE", "frac34"}, // vulgar fraction three quarters = fraction three quarters
{"\u00BF", "iquest"}, // inverted question mark = turned question mark
{"\u00C0", "Agrave"}, // ? - uppercase A, grave accent
{"\u00C1", "Aacute"}, // ? - uppercase A, acute accent
{"\u00C2", "Acirc"}, // ? - uppercase A, circumflex accent
{"\u00C3", "Atilde"}, // ? - uppercase A, tilde
{"\u00C4", "Auml"}, // ? - uppercase A, umlaut
{"\u00C5", "Aring"}, // ? - uppercase A, ring
{"\u00C6", "AElig"}, // ? - uppercase AE
{"\u00C7", "Ccedil"}, // ? - uppercase C, cedilla
{"\u00C8", "Egrave"}, // ? - uppercase E, grave accent
{"\u00C9", "Eacute"}, // ? - uppercase E, acute accent
{"\u00CA", "Ecirc"}, // ? - uppercase E, circumflex accent
{"\u00CB", "Euml"}, // ? - uppercase E, umlaut
{"\u00CC", "Igrave"}, // ? - uppercase I, grave accent
{"\u00CD", "Iacute"}, // ? - uppercase I, acute accent
{"\u00CE", "Icirc"}, // ? - uppercase I, circumflex accent
{"\u00CF", "Iuml"}, // ? - uppercase I, umlaut
{"\u00D0", "ETH"}, // ? - uppercase Eth, Icelandic
{"\u00D1", "Ntilde"}, // ? - uppercase N, tilde
{"\u00D2", "Ograve"}, // ? - uppercase O, grave accent
{"\u00D3", "Oacute"}, // ? - uppercase O, acute accent
{"\u00D4", "Ocirc"}, // ? - uppercase O, circumflex accent
{"\u00D5", "Otilde"}, // ? - uppercase O, tilde
{"\u00D6", "Ouml"}, // ? - uppercase O, umlaut
{"\u00D7", "times"}, // multiplication sign
{"\u00D8", "Oslash"}, // ? - uppercase O, slash
{"\u00D9", "Ugrave"}, // ? - uppercase U, grave accent
{"\u00DA", "Uacute"}, // ? - uppercase U, acute accent
{"\u00DB", "Ucirc"}, // ? - uppercase U, circumflex accent
{"\u00DC", "Uuml"}, // ? - uppercase U, umlaut
{"\u00DD", "Yacute"}, // ? - uppercase Y, acute accent
{"\u00DE", "THORN"}, // ? - uppercase THORN, Icelandic
{"\u00DF", "szlig"}, // ? - lowercase sharps, German
{"\u00E0", "agrave"}, // ? - lowercase a, grave accent
{"\u00E1", "aacute"}, // ? - lowercase a, acute accent
{"\u00E2", "acirc"}, // ? - lowercase a, circumflex accent
{"\u00E3", "atilde"}, // ? - lowercase a, tilde
{"\u00E4", "auml"}, // ? - lowercase a, umlaut
{"\u00E5", "aring"}, // ? - lowercase a, ring
{"\u00E6", "aelig"}, // ? - lowercase ae
{"\u00E7", "ccedil"}, // ? - lowercase c, cedilla
{"\u00E8", "egrave"}, // ? - lowercase e, grave accent
{"\u00E9", "eacute"}, // ? - lowercase e, acute accent
{"\u00EA", "ecirc"}, // ? - lowercase e, circumflex accent
{"\u00EB", "euml"}, // ? - lowercase e, umlaut
{"\u00EC", "igrave"}, // ? - lowercase i, grave accent
{"\u00ED", "iacute"}, // ? - lowercase i, acute accent
{"\u00EE", "icirc"}, // ? - lowercase i, circumflex accent
{"\u00EF", "iuml"}, // ? - lowercase i, umlaut
{"\u00F0", "eth"}, // ? - lowercase eth, Icelandic
{"\u00F1", "ntilde"}, // ? - lowercase n, tilde
{"\u00F2", "ograve"}, // ? - lowercase o, grave accent
{"\u00F3", "oacute"}, // ? - lowercase o, acute accent
{"\u00F4", "ocirc"}, // ? - lowercase o, circumflex accent
{"\u00F5", "otilde"}, // ? - lowercase o, tilde
{"\u00F6", "ouml"}, // ? - lowercase o, umlaut
{"\u00F7", "divide"}, // division sign
{"\u00F8", "oslash"}, // ? - lowercase o, slash
{"\u00F9", "ugrave"}, // ? - lowercase u, grave accent
{"\u00FA", "uacute"}, // ? - lowercase u, acute accent
{"\u00FB", "ucirc"}, // ? - lowercase u, circumflex accent
{"\u00FC", "uuml"}, // ? - lowercase u, umlaut
{"\u00FD", "yacute"}, // ? - lowercase y, acute accent
{"\u00FE", "thorn"}, // ? - lowercase thorn, Icelandic
{"\u00FF", "yuml"}, // ? - lowercase y, umlaut
{"'", "apos"}, // the controversial (but who cares!) '
// stackoverflow.com/questions/2083754/why-shouldnt-apos-be-used-to-escape-single-quotes
};
private static final HashMap<String, CharSequence> htmldecode_lookupMap;
static {
htmldecode_lookupMap = new HashMap<String, CharSequence>();
for (final CharSequence[] seq : htmldecode_ESCAPES)
htmldecode_lookupMap.put(seq[1].toString(), seq[0]);
}
static String urlencode(String x) {
try {
return URLEncoder.encode(unnull(x), "UTF-8");
} catch (UnsupportedEncodingException e) { throw new RuntimeException(e); }
}
public static String loadPageSilently(String url) {
try {
return loadPageSilently(new URL(loadPage_preprocess(url)));
} catch (IOException e) { throw new RuntimeException(e); }
}
public static String loadPageSilently(URL url) {
try {
IOException e = null;
for (int tries = 0; tries < 60; tries++)
try {
URLConnection con = url.openConnection();
return loadPage(con, url);
} catch (IOException _e) {
e = _e;
print("Retrying because of: " + e);
sleepSeconds(1);
}
throw e;
} catch (IOException e) { throw new RuntimeException(e); }
}
static String loadPage_preprocess(String url) {
if (url.startsWith("tb/"))
url = "tinybrain.de:8080/" + url;
if (url.indexOf("://") < 0)
url = "http://" + url;
return url;
}
public static String loadPage(String url) {
try {
return loadPage(new URL(loadPage_preprocess(url)));
} catch (IOException e) { throw new RuntimeException(e); }
}
public static String loadPage(URL url) {
print("Loading: " + url.toExternalForm());
return loadPageSilently(url);
}
public static String loadPage(URLConnection con, URL url) throws IOException {
String contentType = con.getContentType();
if (contentType == null)
throw new IOException("Page could not be read: " + url);
//Log.info("Content-Type: " + contentType);
String charset = loadPage_guessCharset(contentType);
Reader r = new InputStreamReader(con.getInputStream(), charset);
StringBuilder buf = new StringBuilder();
while (true) {
int ch = r.read();
if (ch < 0)
break;
//Log.info("Chars read: " + buf.length());
buf.append((char) ch);
}
return buf.toString();
}
static String loadPage_guessCharset(String contentType) {
Pattern p = Pattern.compile("text/html;\\s+charset=([^\\s]+)\\s*");
Matcher m = p.matcher(contentType);
/* If Content-Type doesn't match this pre-conception, choose default and hope for the best. */
return m.matches() ? m.group(1) : "ISO-8859-1";
}
static List<String> parse3(String s) {
return dropPunctuation(javaTokPlusPeriod(s));
}
static boolean empty(Collection c) {
return isEmpty(c);
}
static boolean empty(String s) {
return isEmpty(s);
}
static boolean empty(Map map) {
return map == null || map.isEmpty();
}
static String str(Object o) {
return String.valueOf(o);
}
static void arraycopy(Object[] a, Object[] b) {
int n = min(a.length, b.length);
for (int i = 0; i < n; i++)
b[i] = a[i];
}
public static String join(String glue, Iterable<String> strings) {
StringBuilder buf = new StringBuilder();
Iterator<String> i = strings.iterator();
if (i.hasNext()) {
buf.append(i.next());
while (i.hasNext())
buf.append(glue).append(i.next());
}
return buf.toString();
}
public static String join(String glue, String[] strings) {
return join(glue, Arrays.asList(strings));
}
public static String join(Iterable<String> strings) {
return join("", strings);
}
public static String join(String[] strings) {
return join("", strings);
}
static String dropTags(String html) {
return dropAllTags(html);
}
static void sleepSeconds(long s) {
if (s > 0) sleep(s*1000);
}
static String unnull(String s) {
return s == null ? "" : s;
}
static List unnull(List l) {
return l == null ? emptyList() : l;
}
static int min(int a, int b) {
return Math.min(a, b);
}
static boolean equalsIgnoreCase(String a, String b) {
return a == null ? b == null : a.equalsIgnoreCase(b);
}
public static String unquote(String s) {
if (s.startsWith("[")) {
int i = 1;
while (i < s.length() && s.charAt(i) == '=') ++i;
if (i < s.length() && s.charAt(i) == '[') {
String m = s.substring(1, i);
if (s.endsWith("]" + m + "]"))
return s.substring(i+1, s.length()-i-1);
}
}
if (s.startsWith("\"") && s.endsWith("\"") && s.length() > 1) {
String st = s.substring(1, s.length()-1);
StringBuilder sb = new StringBuilder(st.length());
for (int i = 0; i < st.length(); i++) {
char ch = st.charAt(i);
if (ch == '\\') {
char nextChar = (i == st.length() - 1) ? '\\' : st
.charAt(i + 1);
// Octal escape?
if (nextChar >= '0' && nextChar <= '7') {
String code = "" + nextChar;
i++;
if ((i < st.length() - 1) && st.charAt(i + 1) >= '0'
&& st.charAt(i + 1) <= '7') {
code += st.charAt(i + 1);
i++;
if ((i < st.length() - 1) && st.charAt(i + 1) >= '0'
&& st.charAt(i + 1) <= '7') {
code += st.charAt(i + 1);
i++;
}
}
sb.append((char) Integer.parseInt(code, 8));
continue;
}
switch (nextChar) {
case '\\':
ch = '\\';
break;
case 'b':
ch = '\b';
break;
case 'f':
ch = '\f';
break;
case 'n':
ch = '\n';
break;
case 'r':
ch = '\r';
break;
case 't':
ch = '\t';
break;
case '\"':
ch = '\"';
break;
case '\'':
ch = '\'';
break;
// Hex Unicode: u????
case 'u':
if (i >= st.length() - 5) {
ch = 'u';
break;
}
int code = Integer.parseInt(
"" + st.charAt(i + 2) + st.charAt(i + 3)
+ st.charAt(i + 4) + st.charAt(i + 5), 16);
sb.append(Character.toChars(code));
i += 5;
continue;
default:
ch = nextChar; // added by Stefan
}
i++;
}
sb.append(ch);
}
return sb.toString();
} else
return s; // return original
}
static List<String> dropPunctuation_keep = litlist("*", "<", ">");
static List<String> dropPunctuation(List<String> tok) {
tok = new ArrayList<String>(tok);
for (int i = 1; i < tok.size(); i += 2) {
String t = tok.get(i);
if (t.length() == 1 && !Character.isLetter(t.charAt(0)) && !Character.isDigit(t.charAt(0)) && !dropPunctuation_keep.contains(t)) {
tok.set(i-1, tok.get(i-1) + tok.get(i+1));
tok.remove(i);
tok.remove(i);
i -= 2;
}
}
return tok;
}
static String dropPunctuation(String s) {
return join(dropPunctuation(nlTok(s)));
}
static boolean isEmpty(Collection c) {
return c == null || c.isEmpty();
}
static boolean isEmpty(String s) {
return s == null || s.length() == 0;
}
static boolean eq(Object a, Object b) {
if (a == null) return b == null;
if (a.equals(b)) return true;
if (a instanceof BigInteger) {
if (b instanceof Integer) return a.equals(BigInteger.valueOf((Integer) b));
if (b instanceof Long) return a.equals(BigInteger.valueOf((Long) b));
}
return false;
}
static StringBuffer print_log;
static void print() {
print("");
}
static void print(Object o) {
String s = String.valueOf(o) + "\n";
synchronized(StringBuffer.class) {
if (print_log == null) print_log = new StringBuffer();
}
print_log.append(s);
System.out.print(s);
}
static void print(long l) {
print(String.valueOf(l));
}
// tok should be the output of htmlcoarsetok
static List<String> dropAllTags(List<String> tok) {
List<String> list = new ArrayList<String>();
for (int i = 0; i < tok.size(); i++) {
String t = tok.get(i);
if (t.startsWith("<")) {
list.set(list.size()-1, list.get(list.size()-1) + tok.get(i+1));
++i;
} else
list.add(tok.get(i));
}
return list;
}
// alternatively, call this convenient function
static String dropAllTags(String html) {
return join(dropAllTags(htmlcoarsetok(html)));
}
// This is made for NL parsing.
// It's javaTok extended with "..." token, "$n" and "#n" and
// special quotes (which are converted to normal ones).
static List<String> javaTokPlusPeriod(String s) {
List<String> tok = new ArrayList<String>();
int l = s.length();
int i = 0;
while (i < l) {
int j = i;
char c; String cc;
// scan for whitespace
while (j < l) {
c = s.charAt(j);
cc = s.substring(j, Math.min(j+2, l));
if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
++j;
else if (cc.equals("/*")) {
do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
j = Math.min(j+2, l);
} else if (cc.equals("//")) {
do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
} else
break;
}
tok.add(s.substring(i, j));
i = j;
if (i >= l) break;
c = s.charAt(i);
cc = s.substring(i, Math.min(i+2, l));
// scan for non-whitespace
if (c == '\u201C' || c == '\u201D') c = '"'; // normalize quotes
if (c == '\'' || c == '"') {
char opener = c;
++j;
while (j < l) {
char _c = s.charAt(j);
if (_c == '\u201C' || _c == '\u201D') _c = '"'; // normalize quotes
if (_c == opener) {
++j;
break;
} else if (s.charAt(j) == '\\' && j+1 < l)
j += 2;
else
++j;
}
if (j-1 >= i+1) {
tok.add(opener + s.substring(i+1, j-1) + opener);
i = j;
continue;
}
} else if (Character.isJavaIdentifierStart(c))
do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || s.charAt(j) == '\'')); // for things like "this one's"
else if (Character.isDigit(c))
do ++j; while (j < l && Character.isDigit(s.charAt(j)));
else if (cc.equals("[[")) {
do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
j = Math.min(j+2, l);
} else if (s.substring(j, Math.min(j+3, l)).equals("..."))
j += 3;
else if (c == '$' || c == '#')
do ++j; while (j < l && Character.isDigit(s.charAt(j)));
else
++j;
tok.add(s.substring(i, j));
i = j;
}
if ((tok.size() % 2) == 0) tok.add("");
return tok;
}
// TODO: process CDATA?
static List<String> htmlcoarsetok(String s) {
List<String> tok = new ArrayList<String>();
int l = s.length();
int i = 0;
while (i < l) {
int j = i;
char c;
// scan for non-tags
while (j < l) {
if (s.charAt(j) != '<')
// regular character
++j;
else if (s.substring(j, Math.min(j+4, l)).equals("<!--")) {
// HTML comment
j = j+4;
do ++j; while (j < l && !s.substring(j, Math.min(j+3, l)).equals("-->"));
j = Math.min(j+3, l);
} else
// it's a tag
break;
}
tok.add(s.substring(i, j));
i = j;
if (i >= l) break;
c = s.charAt(i);
// scan for tags
if (c == '<') {
++j;
while (j < l && s.charAt(j) != '>') ++j; // TODO: strings?
if (j < l) ++j;
}
tok.add(s.substring(i, j));
i = j;
}
if ((tok.size() % 2) == 0) tok.add("");
return tok;
}
static void sleep(long ms) {
try {
Thread.sleep(ms);
} catch (Exception e) { throw new RuntimeException(e); }
}
static void sleep() { try {
print("Sleeping.");
synchronized(main.class) { main.class.wait(); }
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static List emptyList() {
return Collections.emptyList();
}
static <A> ArrayList<A> litlist(A... a) {
return new ArrayList<A>(Arrays.asList(a));
}
static List<String> nlTok(String s) {
return javaTokPlusPeriod(s);
}
// also logs full exception to console
static String exceptionToUser(Throwable e) {
return throwableToUser(e);
}
public static long parseSnippetID(String snippetID) {
long id = Long.parseLong(shortenSnippetID(snippetID));
if (id == 0) fail("0 is not a snippet ID");
return id;
}
// get purpose 1: access a list/array (safer version of x.get(y))
static <A> A get(List<A> l, int idx) {
return idx >= 0 && idx < l(l) ? l.get(idx) : null;
}
static <A> A get(A[] l, int idx) {
return idx >= 0 && idx < l(l) ? l[idx] : null;
}
// get purpose 2: access a field by reflection
static Object get(Object o, String field) {
if (o instanceof Class) return get((Class) o, field);
if (o.getClass().getName().equals("main$DynamicObject"))
return call(get_raw(o, "fieldValues"), "get", field);
return get_raw(o, field);
}
static Object get_raw(Object o, String field) {
try {
Field f = get_findField(o.getClass(), field);
f.setAccessible(true);
return f.get(o);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
static Object get(Class c, String field) {
try {
Field f = get_findStaticField(c, field);
f.setAccessible(true);
return f.get(null);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
static Field get_findStaticField(Class<?> c, String field) {
Class _c = c;
do {
for (Field f : _c.getDeclaredFields())
if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
return f;
_c = _c.getSuperclass();
} while (_c != null);
throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
}
static Field get_findField(Class<?> c, String field) {
Class _c = c;
do {
for (Field f : _c.getDeclaredFields())
if (f.getName().equals(field))
return f;
_c = _c.getSuperclass();
} while (_c != null);
throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}
static String unq(String s) {
return unquote(s);
}
static String shortenSnippetID(String snippetID) {
if (snippetID.startsWith("#"))
snippetID = snippetID.substring(1);
String httpBlaBla = "http://tinybrain.de/";
if (snippetID.startsWith(httpBlaBla))
snippetID = snippetID.substring(httpBlaBla.length());
return snippetID;
}
static int l(Object[] array) {
return array == null ? 0 : array.length;
}
static int l(byte[] array) {
return array == null ? 0 : array.length;
}
static int l(int[] array) {
return array == null ? 0 : array.length;
}
static int l(char[] array) {
return array == null ? 0 : array.length;
}
static int l(Collection c) {
return c == null ? 0 : c.size();
}
static int l(Map m) {
return m == null ? 0 : m.size();
}
static int l(String s) {
return s == null ? 0 : s.length();
}
// also logs full exception to console
static String throwableToUser(Throwable e) {
return formatExceptionForUser(e);
}
// varargs assignment fixer for a single string array argument
static Object call(Object o, String method, String[] arg) {
return call(o, method, new Object[] {arg});
}
static Object call(Object o, String method, Object... args) {
try {
if (o instanceof Class) {
Method m = call_findStaticMethod((Class) o, method, args, false);
m.setAccessible(true);
return m.invoke(null, args);
} else {
Method m = call_findMethod(o, method, args, false);
m.setAccessible(true);
return m.invoke(o, args);
}
} catch (Exception e) {
throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);
}
}
static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) {
Class _c = c;
while (c != null) {
for (Method m : c.getDeclaredMethods()) {
if (debug)
System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
if (!m.getName().equals(method)) {
if (debug) System.out.println("Method name mismatch: " + method);
continue;
}
if ((m.getModifiers() & Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug))
continue;
return m;
}
c = c.getSuperclass();
}
throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + _c.getName());
}
static Method call_findMethod(Object o, String method, Object[] args, boolean debug) {
Class c = o.getClass();
while (c != null) {
for (Method m : c.getDeclaredMethods()) {
if (debug)
System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
if (m.getName().equals(method) && call_checkArgs(m, args, debug))
return m;
}
c = c.getSuperclass();
}
throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName());
}
private static boolean call_checkArgs(Method m, Object[] args, boolean debug) {
Class<?>[] types = m.getParameterTypes();
if (types.length != args.length) {
if (debug)
System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
return false;
}
for (int i = 0; i < types.length; i++)
if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
if (debug)
System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
return false;
}
return true;
}
static RuntimeException fail() {
throw new RuntimeException("fail");
}
static RuntimeException fail(Object msg) {
throw new RuntimeException(String.valueOf(msg));
}
static RuntimeException fail(String msg) {
throw new RuntimeException(unnull(msg));
}
static RuntimeException fail(String msg, Object... args) {
throw new RuntimeException(format(msg, args));
}
// extended over Class.isInstance() to handle primitive types
static boolean isInstanceX(Class type, Object arg) {
if (type == boolean.class) return arg instanceof Boolean;
if (type == int.class) return arg instanceof Integer;
if (type == long.class) return arg instanceof Long;
if (type == float.class) return arg instanceof Float;
if (type == short.class) return arg instanceof Short;
if (type == char.class) return arg instanceof Character;
if (type == byte.class) return arg instanceof Byte;
if (type == double.class) return arg instanceof Double;
return type.isInstance(arg);
}
static String format(String pat, Object... args) {
return format3(pat, args);
}
// also logs full exception to console
static String formatExceptionForUser(Throwable e) {
printStackTrace(e);
String msg = e.getMessage();
if (empty(msg))
return str(e);
else
return msg;
}
static String format3(String pat, Object... args) {
if (args.length == 0) return pat;
List<String> tok = javaTokPlusPeriod(pat);
int argidx = 0;
for (int i = 1; i < tok.size(); i += 2)
if (tok.get(i).equals("*"))
tok.set(i, format3_formatArg(argidx < args.length ? args[argidx++] : "null"));
return join(tok);
}
static String format3_formatArg(Object arg) {
if (arg == null) return "null";
if (arg instanceof String) {
String s = (String) arg;
return isIdentifier(s) || isNonNegativeInteger(s) ? s : quote(s);
}
if (arg instanceof Integer || arg instanceof Long) return String.valueOf(arg);
return quote(structure(arg));
}
static void printStackTrace(Throwable e) {
// we go to system.out now - system.err is nonsense
print(getStackTrace(e));
}
static boolean isIdentifier(String s) {
return isJavaIdentifier(s);
}
static String quote(String s) {
if (s == null) return "null";
return "\"" + s.replace("\\", "\\\\").replace("\"", "\\\"").replace("\r", "\\r").replace("\n", "\\n") + "\"";
}
static String quote(long l) {
return quote("" + l);
}
static String getStackTrace(Throwable throwable) {
StringWriter writer = new StringWriter();
throwable.printStackTrace(new PrintWriter(writer));
return writer.toString();
}
static boolean isNonNegativeInteger(String s) {
return s != null && Pattern.matches("\\d+", s);
}
static String structure(Object o) {
return structure(o, 0);
}
// leave to false, unless unstructure() breaks
static boolean structure_allowShortening = false;
static String structure(Object o, int stringSizeLimit) {
if (o == null) return "null";
String name = o.getClass().getName();
StringBuilder buf = new StringBuilder();
if (o instanceof Collection) { // TODO: store the type (e.g. HashSet/TreeSet)
for (Object x : (Collection) o) {
if (buf.length() != 0) buf.append(", ");
buf.append(structure(x, stringSizeLimit));
}
return "[" + buf + "]";
}
if (o instanceof Map) {
for (Object e : ((Map) o).entrySet()) {
if (buf.length() != 0) buf.append(", ");
buf.append(structure(((Map.Entry) e).getKey(), stringSizeLimit));
buf.append("=");
buf.append(structure(((Map.Entry) e).getValue(), stringSizeLimit));
}
return (o instanceof HashMap ? "hashmap" : "") + "{" + buf + "}";
}
if (o.getClass().isArray()) {
int n = Array.getLength(o);
for (int i = 0; i < n; i++) {
if (buf.length() != 0) buf.append(", ");
buf.append(structure(Array.get(o, i), stringSizeLimit));
}
return "array{" + buf + "}";
}
if (o instanceof String)
return quote(stringSizeLimit != 0 ? shorten((String) o, stringSizeLimit) : (String) o);
if (o instanceof Class)
return "class(" + quote(((Class) o).getName()) + ")";
if (o instanceof Throwable)
return "exception(" + quote(((Throwable) o).getMessage()) + ")";
if (o instanceof BigInteger)
return "bigint(" + o + ")";
if (o instanceof Double)
return "d(" + quote(str(o)) + ")";
if (o instanceof Long)
return o + "L";
// Need more cases? This should cover all library classes...
if (name.startsWith("java.") || name.startsWith("javax."))
return String.valueOf(o);
String shortName = o.getClass().getName().replaceAll("^main\\$", "");
int numFields = 0;
String fieldName = "";
if (shortName.equals("DynamicObject")) {
shortName = (String) get(o, "className");
Map<String, Object> fieldValues = (Map) get(o, "fieldValues");
for (String _fieldName : fieldValues.keySet()) {
fieldName = _fieldName;
Object value = fieldValues.get(fieldName);
if (value != null) {
if (buf.length() != 0) buf.append(", ");
buf.append(fieldName + "=" + structure(value, stringSizeLimit));
}
++numFields;
}
} else {
// regular class
// TODO: go to superclasses too
Field[] fields = o.getClass().getDeclaredFields();
for (Field field : fields) {
if ((field.getModifiers() & Modifier.STATIC) != 0)
continue;
Object value;
try {
field.setAccessible(true);
value = field.get(o);
} catch (Exception e) {
value = "?";
}
fieldName = field.getName();
// put special cases here...
if (value != null) {
if (buf.length() != 0) buf.append(", ");
buf.append(fieldName + "=" + structure(value, stringSizeLimit));
}
++numFields;
}
}
String b = buf.toString();
if (numFields == 1 && structure_allowShortening)
b = b.replaceAll("^" + fieldName + "=", ""); // drop field name if only one
String s = shortName;
if (buf.length() != 0)
s += "(" + b + ")";
return s;
}
static String shorten(String s, int max) {
if (s == null) return "";
return s.length() <= max ? s : s.substring(0, Math.min(s.length(), max)) + "...";
}
static boolean isJavaIdentifier(String s) {
if (s.length() == 0 || !Character.isJavaIdentifierStart(s.charAt(0)))
return false;
for (int i = 1; i < s.length(); i++)
if (!Character.isJavaIdentifierPart(s.charAt(i)))
return false;
return true;
}
}