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801
LINES

< > BotCompany Repo | #629 // !standard functions (old but used in lower levels of translation engine)

JavaX translator [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (801L/7K/20K).

1  
import java.util.*;
2  
import java.io.*;
3  
import java.util.regex.*;
4  
import java.net.*;
5  
import java.math.*;
6  
7  
public class main {
8  
  static boolean debug = false;
9  
  
10  
  static List<String> standardFunctions;
11  
  
12  
  public static void main(String[] args) throws IOException {
13  
    long startTime = now();
14  
    
15  
    standardFunctions = new ArrayList();
16  
    standardFunctions.addAll((List) loadVariableDefinition(loadSnippet("#761"), "standardFunctions"));
17  
    standardFunctions.addAll((List) loadVariableDefinition(loadSnippet("#1006654"), "standardFunctions"));
18  
    
19  
    String s = loadMainJava();
20  
    
21  
    Map<String, String> sf = new HashMap();
22  
    for (String x : standardFunctions) {
23  
      String[] f = x.split("/");
24  
      sf.put(f[1], f[0]);
25  
    }
26  
    
27  
    for (int i = 0; ; i++) {
28  
      Set<String> defd = new HashSet(findFunctions(s));
29  
      List<String> tok = javaTok(s);
30  
      
31  
      // changes tok
32  
      Set<String> invocations = findInvocations(tok, sf);
33  
      s = join(tok);
34  
      
35  
      List<String> needed = diff(invocations, defd);
36  
      print("Functions needed: " + needed);
37  
      if (needed.isEmpty())
38  
        break;
39  
    
40  
      for (String x : needed) {
41  
        if (defd.contains(x)) continue;
42  
        
43  
        String id = sf.get(x);
44  
        System.out.println("Adding function: " + x + " (" + id + ")");
45  
        s = addFunction(s, id);
46  
        defd = new HashSet(findFunctions(s));
47  
      }
48  
      
49  
      for (String x : needed)
50  
        if (!defd.contains(x))
51  
          fail("Function not defined properly: " + x);
52  
      System.out.println("Iteration " + (i+2));
53  
      if (i >= 1000) fail("Too many iterations");
54  
    }
55  
    saveMainJava(s);
56  
    print("629: " + (now()-startTime) + " ms");
57  
  }
58  
  
59  
  static Set<String> findInvocations(List<String> tok, Map<String, String> sf) {
60  
    int i;
61  
    Set<String> l = new HashSet();
62  
    while ((i = jfind(tok, "please include function *.")) >= 0) {
63  
      String fname = tok.get(i+6);
64  
      l.add(fname);
65  
      clearAllTokens(tok.subList(i, i+10));
66  
    }
67  
68  
    boolean result = false;
69  
    for (i = 1; i+2 < tok.size(); i += 2) {
70  
      String f = tok.get(i);
71  
      if (!isIdentifier(f)) continue;
72  
      if ((i == 1 || !tok.get(i-2).equals(".")) && tok.get(i+2).equals("(")) {
73  
        boolean inSF = sf.containsKey(f);
74  
        if (debug)
75  
          print("Possible invocation: " + f + ", inSF: " + inSF);
76  
        if (inSF)
77  
          l.add(f);
78  
      }
79  
    }
80  
    
81  
    return l;
82  
  }
83  
  
84  
  static boolean substringIs(String s, int i, String pat) {
85  
    return i >= 0 && i+pat.length() < s.length() && s.substring(i, i+pat.length()).equals(pat);
86  
  }
87  
  
88  
  // OK, this should be fast enough.
89  
  static List<String> findFunctions(String src) {
90  
    int idx = src.indexOf("main {"); // yes it's a hack...
91  
    if (idx >= 0) src = src.substring(idx);
92  
    
93  
    Pattern pattern = Pattern.compile("static[^={]*\\s+(\\w+)\\(");
94  
    
95  
    //System.out.println("Scanning for functions");
96  
    List<String> functions = new ArrayList<String>();
97  
    for (String line : toLines(src)) {
98  
      Matcher matcher = pattern.matcher(line);
99  
      if (matcher.find()) {
100  
        String f = matcher.group(1);
101  
        functions.add(f);
102  
        //System.out.println("Function found: " + f);
103  
      }
104  
    }
105  
    return functions;
106  
  }
107  
  
108  
  public static String addFunction(String s, String fID) throws IOException {
109  
    int i = s.lastIndexOf('}');
110  
    String function = loadSnippet(fID, false);
111  
    return s.substring(0, i) + "\n" + function +"\n" + s.substring(i);
112  
  }
113  
  
114  
  public static List<String> toLines(String s) {
115  
    List<String> lines = new ArrayList<String>();
116  
    int start = 0;
117  
    while (true) {
118  
      int i = toLines_nextLineBreak(s, start);
119  
      if (i < 0) {
120  
        if (s.length() > start) lines.add(s.substring(start));
121  
        break;
122  
      }
123  
124  
      lines.add(s.substring(start, i));
125  
      if (s.charAt(i) == '\r' && i+1 < s.length() && s.charAt(i+1) == '\n')
126  
        i += 2;
127  
      else
128  
        ++i;
129  
130  
      start = i;
131  
    }
132  
    return lines;
133  
  }
134  
135  
  private static int toLines_nextLineBreak(String s, int start) {
136  
    for (int i = start; i < s.length(); i++) {
137  
      char c = s.charAt(i);
138  
      if (c == '\r' || c == '\n')
139  
        return i;
140  
    }
141  
    return -1;
142  
  }
143  
  
144  
  static String mainJava;
145  
  
146  
  static String loadMainJava() throws IOException {
147  
    if (mainJava != null) return mainJava;
148  
    return loadTextFile("input/main.java", "");
149  
  }
150  
151  
  static void saveMainJava(String s) throws IOException {
152  
    if (mainJava != null)
153  
      mainJava = s;
154  
    else
155  
      saveTextFile("output/main.java", s);
156  
  }
157  
  
158  
  static void saveMainJava(List<String> tok) throws IOException {
159  
    saveMainJava(join(tok));
160  
  }
161  
  
162  
  static String charsetForTextFiles = "UTF-8";
163  
  
164  
  public static String loadTextFile(String fileName, String defaultContents) throws IOException {
165  
    if (!new File(fileName).exists())
166  
      return defaultContents;
167  
168  
    FileInputStream fileInputStream = new FileInputStream(fileName);
169  
    InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, charsetForTextFiles);
170  
    return loadTextFile(inputStreamReader);
171  
  }
172  
173  
  public static String loadTextFile(Reader reader) throws IOException {
174  
    StringBuilder builder = new StringBuilder();
175  
    try {
176  
      BufferedReader bufferedReader = new BufferedReader(reader);
177  
      String line;
178  
      while ((line = bufferedReader.readLine()) != null)
179  
        builder.append(line).append('\n');
180  
    } finally {
181  
      reader.close();
182  
    }
183  
    return builder.length() == 0 ? "" : builder.substring(0, builder.length()-1);
184  
  }
185  
  
186  
  /** writes safely (to temp file, then rename) */
187  
  public static void saveTextFile(String fileName, String contents) throws IOException {
188  
    File file = new File(fileName);
189  
    File parentFile = file.getParentFile();
190  
    if (parentFile != null)
191  
      parentFile.mkdirs();
192  
    String tempFileName = fileName + "_temp";
193  
    FileOutputStream fileOutputStream = new FileOutputStream(tempFileName);
194  
    OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, charsetForTextFiles);
195  
    PrintWriter printWriter = new PrintWriter(outputStreamWriter);
196  
    printWriter.print(contents);
197  
    printWriter.close();
198  
    if (file.exists() && !file.delete())
199  
      throw new IOException("Can't delete " + fileName);
200  
201  
    if (!new File(tempFileName).renameTo(file))
202  
      throw new IOException("Can't rename " + tempFileName + " to " + fileName);
203  
  }  
204  
  
205  
  public static String loadSnippet(String snippetID) {
206  
    try {
207  
      return loadSnippet(snippetID, preferCached);
208  
    } catch (IOException e) {
209  
      throw new RuntimeException(e);
210  
    }
211  
  }
212  
  
213  
 public static String loadSnippet(String snippetID, boolean preferCached) throws IOException {
214  
    return loadSnippet(parseSnippetID(snippetID), preferCached);
215  
  }
216  
217  
  public static long parseSnippetID(String snippetID) {
218  
    return Long.parseLong(shortenSnippetID(snippetID));
219  
  }
220  
221  
  private static String shortenSnippetID(String snippetID) {
222  
    if (snippetID.startsWith("#"))
223  
      snippetID = snippetID.substring(1);
224  
    String httpBlaBla = "http://tinybrain.de/";
225  
    if (snippetID.startsWith(httpBlaBla))
226  
      snippetID = snippetID.substring(httpBlaBla.length());
227  
    return snippetID;
228  
  }
229  
230  
  public static boolean isSnippetID(String snippetID) {
231  
    snippetID = shortenSnippetID(snippetID);
232  
    return isInteger(snippetID) && Long.parseLong(snippetID) != 0;
233  
  }
234  
235  
  public static boolean isInteger(String s) {
236  
    return Pattern.matches("\\-?\\d+", s);
237  
  }
238  
  
239  
  static boolean preferCached = false;
240  
  
241  
  public static String loadSnippet(long snippetID) throws IOException {
242  
    return loadSnippet(snippetID, preferCached);
243  
  }
244  
245  
  public static String loadSnippet(long snippetID, boolean preferCached) throws IOException {
246  
    if (preferCached) {
247  
      initSnippetCache();
248  
      String text = DiskSnippetCache_get(snippetID);
249  
      if (text != null)
250  
        return text;
251  
    }
252  
253  
    String text;
254  
    try {
255  
      URL url = new URL("http://tinybrain.de:8080/getraw.php?id=" + snippetID);
256  
      text = loadPage(url);
257  
    } catch (FileNotFoundException e) {
258  
      throw new IOException("Snippet #" + snippetID + " not found or not public");
259  
    }
260  
261  
    try {
262  
      initSnippetCache();
263  
      DiskSnippetCache_put(snippetID, text);
264  
    } catch (IOException e) {
265  
      System.err.println("Minor warning: Couldn't save snippet to cache ("  + DiskSnippetCache_getDir() + ")");
266  
    }
267  
268  
    return text;
269  
  }
270  
271  
  private static String loadPage(URL url) throws IOException {
272  
    System.out.println("Loading: " + url.toExternalForm());
273  
    URLConnection con = url.openConnection();
274  
    return loadPage(con, url);
275  
  }
276  
277  
  public static String loadPage(URLConnection con, URL url) throws IOException {
278  
    String contentType = con.getContentType();
279  
    if (contentType == null)
280  
      throw new IOException("Page could not be read: " + url);
281  
    //Log.info("Content-Type: " + contentType);
282  
    String charset = guessCharset(contentType);
283  
    Reader r = new InputStreamReader(con.getInputStream(), charset);
284  
    StringBuilder buf = new StringBuilder();
285  
    while (true) {
286  
      int ch = r.read();
287  
      if (ch < 0)
288  
        break;
289  
      //Log.info("Chars read: " + buf.length());
290  
      buf.append((char) ch);
291  
    }
292  
    return buf.toString();
293  
  }
294  
295  
  public static String guessCharset(String contentType) {
296  
    Pattern p = Pattern.compile("text/html;\\s+charset=([^\\s]+)\\s*");
297  
    Matcher m = p.matcher(contentType);
298  
    /* If Content-Type doesn't match this pre-conception, choose default and hope for the best. */
299  
    return m.matches() ? m.group(1) : "ISO-8859-1";
300  
  }
301  
  
302  
  static File DiskSnippetCache_dir;
303  
304  
  public static void initDiskSnippetCache(File dir) {
305  
    DiskSnippetCache_dir = dir;
306  
    dir.mkdirs();
307  
  }
308  
309  
  public static synchronized String DiskSnippetCache_get(long snippetID) throws IOException {
310  
    return loadTextFile(DiskSnippetCache_getFile(snippetID).getPath(), null);
311  
  }
312  
313  
  private static File DiskSnippetCache_getFile(long snippetID) {
314  
    return new File(DiskSnippetCache_dir, "" + snippetID);
315  
  }
316  
317  
  public static synchronized void DiskSnippetCache_put(long snippetID, String snippet) throws IOException {
318  
    saveTextFile(DiskSnippetCache_getFile(snippetID).getPath(), snippet);
319  
  }
320  
321  
  public static File DiskSnippetCache_getDir() {
322  
    return DiskSnippetCache_dir;
323  
  }
324  
325  
  public static void initSnippetCache() {
326  
    if (DiskSnippetCache_dir == null)
327  
      initDiskSnippetCache(new File(System.getProperty("user.home"), ".tinybrain/snippet-cache"));
328  
  }
329  
  
330  
  static RuntimeException fail() {
331  
    throw new RuntimeException("fail");
332  
  }
333  
  
334  
  static RuntimeException fail(Object msg) {
335  
    throw new RuntimeException(String.valueOf(msg));
336  
  }
337  
  
338  
// replacement for class JavaTok
339  
// maybe incomplete, might want to add floating point numbers
340  
// todo also: extended multi-line strings
341  
342  
static List<String> javaTok(String s) {
343  
  List<String> tok = new ArrayList<String>();
344  
  int l = s.length();
345  
  
346  
  int i = 0;
347  
  while (i < l) {
348  
    int j = i;
349  
    char c; String cc;
350  
    
351  
    // scan for whitespace
352  
    while (j < l) {
353  
      c = s.charAt(j);
354  
      cc = s.substring(j, Math.min(j+2, l));
355  
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
356  
        ++j;
357  
      else if (cc.equals("/*")) {
358  
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
359  
        j = Math.min(j+2, l);
360  
      } else if (cc.equals("//")) {
361  
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
362  
      } else
363  
        break;
364  
    }
365  
    
366  
    tok.add(s.substring(i, j));
367  
    i = j;
368  
    if (i >= l) break;
369  
    c = s.charAt(i); // cc is not needed in rest of loop body
370  
    cc = s.substring(i, Math.min(i+2, l));
371  
372  
    // scan for non-whitespace
373  
    if (c == '\'' || c == '"') {
374  
      char opener = c;
375  
      ++j;
376  
      while (j < l) {
377  
        if (s.charAt(j) == opener) {
378  
          ++j;
379  
          break;
380  
        } else if (s.charAt(j) == '\\' && j+1 < l)
381  
          j += 2;
382  
        else
383  
          ++j;
384  
      }
385  
    } else if (Character.isJavaIdentifierStart(c))
386  
      do ++j; while (j < l && Character.isJavaIdentifierPart(s.charAt(j)));
387  
    else if (Character.isDigit(c)) {
388  
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
389  
      if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
390  
    } else if (cc.equals("[[")) {
391  
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
392  
      j = Math.min(j+2, l);
393  
    } else
394  
      ++j;
395  
396  
    tok.add(s.substring(i, j));
397  
    i = j;
398  
  }
399  
  
400  
  if ((tok.size() % 2) == 0) tok.add("");
401  
  return tok;
402  
}
403  
404  
static List<String> javaTok(List<String> tok) {
405  
  return javaTok(join(tok));
406  
}
407  
408  
  public static String join(String glue, Iterable<String> strings) {
409  
    StringBuilder buf = new StringBuilder();
410  
    Iterator<String> i = strings.iterator();
411  
    if (i.hasNext()) {
412  
      buf.append(i.next());
413  
      while (i.hasNext())
414  
        buf.append(glue).append(i.next());
415  
    }
416  
    return buf.toString();
417  
  }
418  
  
419  
  public static String join(String glue, String[] strings) {
420  
    return join(glue, Arrays.asList(strings));
421  
  }
422  
  
423  
  public static String join(Iterable<String> strings) {
424  
    return join("", strings);
425  
  }
426  
  
427  
  public static String join(String[] strings) {
428  
    return join("", strings);
429  
  }  
430  
  
431  
// leaves tok properly tokenized
432  
// returns true iff anything was replaced
433  
static boolean jreplace(List<String> tok, String in, String out) {
434  
  return jreplace(tok, in, out, false, true);
435  
}
436  
437  
static boolean jreplace(List<String> tok, String in, String out, boolean ignoreCase, boolean reTok) {
438  
  List<String> tokin = javaTok(in);
439  
  replaceSublist(tokin, litlist("<", "", "quoted", "", ">"), litlist("<quoted>"));
440  
  replaceSublist(tokin, litlist("<", "", "id", "", ">"), litlist("<id>"));
441  
  
442  
  boolean anyChange = false;
443  
  for (int n = 0; n < 10000; n++) {
444  
    int i = findCodeTokens(tok, ignoreCase, toStringArray(codeTokensOnly(tokin)));
445  
    if (i < 0) {
446  
      if (anyChange && reTok)
447  
        replaceCollection(tok, javaTok(tok));
448  
      return anyChange;
449  
    }
450  
    List<String> subList = tok.subList(i-1, i+l(tokin)-1); // N to N
451  
    String expansion = jreplace_expandRefs(out, subList);
452  
    clearAllTokens(tok.subList(i, i+l(tokin)-2)); // code to code
453  
    tok.set(i, expansion);
454  
    anyChange = true;
455  
  }
456  
  throw fail("woot? 10000!");
457  
}
458  
459  
// "$1" is first code token, "$2" second code token etc.
460  
static String jreplace_expandRefs(String s, List<String> tokref) {
461  
  List<String> tok = javaTok(s);
462  
  for (int i = 1; i < l(tok)-2; i += 2) {
463  
    if (tok.get(i).startsWith("$") && isInteger(tok.get(i).substring(1))) {
464  
      String x = tokref.get(-1+parseInt(tok.get(i).substring(1))*2);
465  
      tok.set(i, x);
466  
    }
467  
  }
468  
  return join(tok);
469  
}
470  
471  
  static void replaceToken(List<String> tok, String in, String out) {
472  
    renameToken(tok, in, out);
473  
  }
474  
475  
static <A> void replaceCollection(Collection<A> dest, Collection<A> src) {
476  
  dest.clear();
477  
  dest.addAll(src);
478  
}
479  
480  
static <A> ArrayList<A> litlist(A... a) {
481  
  return new ArrayList<A>(Arrays.asList(a));
482  
}
483  
 static List<String> codeTokensOnly(List<String> tok) {
484  
    List<String> l = new ArrayList<String>();
485  
    for (int i = 1; i < tok.size(); i += 2)
486  
      l.add(tok.get(i));
487  
    return l;
488  
  }
489  
  
490  
static void replaceSublist(List<String> l, List<String> x, List<String> y) {
491  
  int i = 0;
492  
  while (true) {
493  
    i = indexOfSubList(l, x, i);
494  
    if (i < 0) return;
495  
    
496  
    // It's inefficient :D
497  
    for (int j = 0; j < l(x); j++) l.remove(i);
498  
    l.addAll(i, y);
499  
    i += l(y);
500  
  }
501  
}
502  
503  
static int l(Object[] array) {
504  
  return array == null ? 0 : array.length;
505  
}
506  
507  
static int l(Collection c) {
508  
  return c == null ? 0 : c.size();
509  
}
510  
511  
static int l(Map m) {
512  
  return m == null ? 0 : m.size();
513  
}
514  
515  
static int l(String s) {
516  
  return s == null ? 0 : s.length();
517  
} 
518  
519  
520  
static int parseInt(String s) {
521  
  return Integer.parseInt(s);
522  
}
523  
524  
  static void renameToken(List<String> tok, String in, String out) {
525  
    int renames = 0;
526  
    for (int i = 1; i < tok.size(); i += 2) {
527  
      if (tok.get(i).equals(in)) {
528  
        tok.set(i, out);
529  
        ++renames;
530  
      }
531  
    }
532  
  }
533  
  
534  
535  
static String[] toStringArray(List<String> list) {
536  
  return list.toArray(new String[list.size()]);
537  
}
538  
539  
static String[] toStringArray(Object o) {
540  
  if (o instanceof String[])
541  
    return (String[]) o;
542  
  else if (o instanceof List)
543  
    return toStringArray((List<String>) o);
544  
  else
545  
    throw fail("Not a list or array: " + o);
546  
}
547  
548  
  static int findCodeTokens(List<String> tok, String... tokens) {
549  
    return findCodeTokens(tok, 1, false, tokens);
550  
  }
551  
  
552  
  static int findCodeTokens(List<String> tok, boolean ignoreCase, String... tokens) {
553  
    return findCodeTokens(tok, 1, ignoreCase, tokens);
554  
  }
555  
  
556  
  static int findCodeTokens(List<String> tok, int startIdx, boolean ignoreCase, String... tokens) {
557  
    outer: for (int i = startIdx | 1; i+tokens.length*2-2 < tok.size(); i += 2) {
558  
      for (int j = 0; j < tokens.length; j++) {
559  
        String p = tokens[j], t = tok.get(i+j*2);
560  
        boolean match;
561  
        if (eq(p, "*")) match = true;
562  
        else if (eq(p, "<quoted>")) match = isQuoted(t);
563  
        else if (eq(p, "<id>")) match = isIdentifier(t);
564  
        else match = ignoreCase ? eqic(p, t) : eq(p, t);
565  
        
566  
        if (!match)
567  
          continue outer;
568  
      }
569  
      return i;
570  
    }
571  
    return -1;
572  
  }
573  
  
574  
  
575  
  static void clearAllTokens(List<String> tok) {
576  
    for (int i = 0; i < tok.size(); i++)
577  
      tok.set(i, "");
578  
  }
579  
  
580  
  static void clearAllTokens(List<String> tok, int i, int j) {
581  
    for (; i < j; i++)
582  
      tok.set(i, "");
583  
  }
584  
585  
static boolean isIdentifier(String s) {
586  
  return isJavaIdentifier(s);
587  
}
588  
589  
static boolean eqic(String a, String b) {
590  
  if ((a == null) != (b == null)) return false;
591  
  if (a == null) return true;
592  
  return a.equalsIgnoreCase(b);
593  
}
594  
595  
596  
// supports the usual quotings (', ", variable length double brackets)
597  
static boolean isQuoted(String s) {
598  
  if (s.startsWith("'") || s.startsWith("\"")) return true;
599  
  if (!s.startsWith("[")) return false;
600  
  int i = 1;
601  
  while (i < s.length() && s.charAt(i) == '=') ++i;
602  
  return i < s.length() && s.charAt(i) == '[';
603  
  //return Pattern.compile("^\\[=*\\[").matcher(s).find();
604  
}
605  
606  
607  
static boolean eq(Object a, Object b) {
608  
  if (a == null) return b == null;
609  
  if (a.equals(b)) return true;
610  
  if (a instanceof BigInteger) {
611  
    if (b instanceof Integer) return a.equals(BigInteger.valueOf((Integer) b));
612  
    if (b instanceof Long) return a.equals(BigInteger.valueOf((Long) b));
613  
  }
614  
  return false;
615  
}
616  
617  
static boolean isJavaIdentifier(String s) {
618  
  if (s.length() == 0 || !Character.isJavaIdentifierStart(s.charAt(0)))
619  
    return false;
620  
  for (int i = 1; i < s.length(); i++)
621  
    if (!Character.isJavaIdentifierPart(s.charAt(i)))
622  
      return false;
623  
  return true;
624  
}
625  
626  
static <A> int indexOfSubList(List<A> x, List<A> y, int i) {
627  
  outer: for (; i+l(y) <= l(x); i++) {
628  
    for (int j = 0; j < l(y); j++)
629  
      if (neq(x.get(i+j), y.get(j)))
630  
        continue outer;
631  
    return i;
632  
  }
633  
  return -1;
634  
}
635  
636  
static boolean neq(Object a, Object b) {
637  
  return !eq(a, b);
638  
}
639  
640  
static long now() {
641  
  return System.currentTimeMillis();
642  
}
643  
644  
static void print(String s) {
645  
  System.out.println(s);
646  
}
647  
648  
static List<String> diff(Collection<String> a, Set<String> b) {
649  
  List<String> l = new ArrayList();
650  
  for (String s : a)
651  
    if (!b.contains(s))
652  
      l.add(s);
653  
  return l;
654  
}
655  
656  
static int jfind(List<String> tok, String in) {
657  
  List<String> tokin = javaTok(in);
658  
  replaceSublist(tokin, litlist("<", "", "quoted", "", ">"), litlist("<quoted>"));
659  
  replaceSublist(tokin, litlist("<", "", "id", "", ">"), litlist("<id>"));
660  
  
661  
  return findCodeTokens(tok, false, toStringArray(codeTokensOnly(tokin)));
662  
}
663  
664  
// currently only works with string lists ("= litlist(...)")
665  
// and strings.
666  
static Object loadVariableDefinition(String progIDOrSrc, String varName) {
667  
  if (isSnippetID(progIDOrSrc))
668  
    progIDOrSrc = loadSnippet(progIDOrSrc);
669  
  List<String> tok = javaTok(progIDOrSrc);
670  
  
671  
  int i = findCodeTokens(tok, varName, "=");
672  
  if (i < 0) return null;
673  
  
674  
  i += 4;
675  
  if (isQuoted(tok.get(i)))
676  
    return unquote(tok.get(i));
677  
  
678  
  if (eq(get(tok, i), "litlist") && eq(get(tok, i+2), "(")) {
679  
    int opening = i+2;
680  
    int closing = findEndOfBracketPart(tok, opening)-1;
681  
    List l = new ArrayList();
682  
    for (i = opening+2; i < closing; i += 4)
683  
      l.add(unquote(tok.get(i)));
684  
    return l;
685  
  }
686  
  
687  
  throw fail("Unknown variable type or no definition in source: " + shorten(progIDOrSrc, 100) + "/" + varName);
688  
}
689  
690  
static <A> A get(List<A> l, int idx) {
691  
  return idx >= 0 && idx < l(l) ? l.get(idx) : null;
692  
}
693  
694  
 public static String unquote(String s) {
695  
    if (s == null) return null;
696  
    if (s.startsWith("[")) {
697  
      int i = 1;
698  
      while (i < s.length() && s.charAt(i) == '=') ++i;
699  
      if (i < s.length() && s.charAt(i) == '[') {
700  
        String m = s.substring(1, i);
701  
        if (s.endsWith("]" + m + "]"))
702  
          return s.substring(i+1, s.length()-i-1);
703  
      }
704  
    }
705  
    
706  
    if (s.startsWith("\"") /*&& s.endsWith("\"")*/ && s.length() > 1) {
707  
      String st = s.substring(1, s.endsWith("\"") ? s.length()-1 : s.length());
708  
      StringBuilder sb = new StringBuilder(st.length());
709  
  
710  
      for (int i = 0; i < st.length(); i++) {
711  
        char ch = st.charAt(i);
712  
        if (ch == '\\') {
713  
          char nextChar = (i == st.length() - 1) ? '\\' : st
714  
                  .charAt(i + 1);
715  
          // Octal escape?
716  
          if (nextChar >= '0' && nextChar <= '7') {
717  
              String code = "" + nextChar;
718  
              i++;
719  
              if ((i < st.length() - 1) && st.charAt(i + 1) >= '0'
720  
                      && st.charAt(i + 1) <= '7') {
721  
                  code += st.charAt(i + 1);
722  
                  i++;
723  
                  if ((i < st.length() - 1) && st.charAt(i + 1) >= '0'
724  
                          && st.charAt(i + 1) <= '7') {
725  
                      code += st.charAt(i + 1);
726  
                      i++;
727  
                  }
728  
              }
729  
              sb.append((char) Integer.parseInt(code, 8));
730  
              continue;
731  
          }
732  
          switch (nextChar) {
733  
          case '\\':
734  
              ch = '\\';
735  
              break;
736  
          case 'b':
737  
              ch = '\b';
738  
              break;
739  
          case 'f':
740  
              ch = '\f';
741  
              break;
742  
          case 'n':
743  
              ch = '\n';
744  
              break;
745  
          case 'r':
746  
              ch = '\r';
747  
              break;
748  
          case 't':
749  
              ch = '\t';
750  
              break;
751  
          case '\"':
752  
              ch = '\"';
753  
              break;
754  
          case '\'':
755  
              ch = '\'';
756  
              break;
757  
          // Hex Unicode: u????
758  
          case 'u':
759  
              if (i >= st.length() - 5) {
760  
                  ch = 'u';
761  
                  break;
762  
              }
763  
              int code = Integer.parseInt(
764  
                      "" + st.charAt(i + 2) + st.charAt(i + 3)
765  
                              + st.charAt(i + 4) + st.charAt(i + 5), 16);
766  
              sb.append(Character.toChars(code));
767  
              i += 5;
768  
              continue;
769  
          default:
770  
            ch = nextChar; // added by Stefan
771  
          }
772  
          i++;
773  
        }
774  
        sb.append(ch);
775  
      }
776  
      return sb.toString();      
777  
    } else
778  
      return s; // return original
779  
  }
780  
781  
782  
static String shorten(String s, int max) {
783  
  if (s == null) return "";
784  
  return s.length() <= max ? s : s.substring(0, Math.min(s.length(), max)) + "...";
785  
}
786  
787  
  // i must point at the opening bracket (any of the 2 types, not type parameters)
788  
  // index returned is index of closing bracket + 1
789  
  static int findEndOfBracketPart(List<String> cnc, int i) {
790  
    int j = i+2, level = 1;
791  
    while (j < cnc.size()) {
792  
      if (litlist("{", "(").contains(cnc.get(j))) ++level;
793  
      else if (litlist("}", ")").contains(cnc.get(j))) --level;
794  
      if (level == 0)
795  
        return j+1;
796  
      ++j;
797  
    }
798  
    return cnc.size();
799  
  }
800  
  
801  
}

Author comment

Supersedes #1000265

download  show line numbers  debug dex  old transpilations   

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Comments [hide]

ID Author/Program Comment Date
200 #1000604 (pitcher) 2015-08-19 17:56:34
185 #1000610 (pitcher) 2015-08-19 17:56:34

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Snippet ID: #629
Snippet name: !standard functions (old but used in lower levels of translation engine)
Eternal ID of this version: #629/1
Text MD5: 38273cf9b9f0536417601f02769f9521
Transpilation MD5: 38273cf9b9f0536417601f02769f9521
Author: stefan
Category: javax
Type: JavaX translator
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2017-01-25 18:12:00
Source code size: 24483 bytes / 801 lines
Pitched / IR pitched: No / No
Views / Downloads: 3139 / 24043
Referenced in: [show references]