Java StringBuilder.codePointAt Examples

Java StringBuilder.codePointAt - 3 examples found. These are the top rated real world Java examples of StringBuilder.codePointAt extracted from open source projects. You can rate examples to help us improve the quality of examples.
 // 过滤整数字符,把所有非0~9的字符全部删除
 private void filterInt(StringBuilder builder) {
   for (int i = builder.length() - 1; i >= 0; i--) {
     int cp = builder.codePointAt(i);
     if (cp > '9' || cp < '0') {
       builder.deleteCharAt(i);
     }
   }
 }
Example #2
0
 public void insertString(FilterBypass fb, int offset, String string, AttributeSet attr)
     throws BadLocationException {
   StringBuilder builder = new StringBuilder(string);
   for (int i = builder.length() - 1; i >= 0; i--) {
     int cp = builder.codePointAt(i);
     if (!Character.isDigit(cp) && cp != '-') {
       builder.deleteCharAt(i);
       if (Character.isSupplementaryCodePoint(cp)) {
         i--;
         builder.deleteCharAt(i);
       }
     }
   }
   super.insertString(fb, offset, builder.toString(), attr);
 }
Example #3
0
  private StringBuilder sanitize(final StringBuilder aContent) {
    int i = 0;
    int lastBreak = 0;
    while (i < aContent.length()) {
      // Check valid unicode char
      if (!isValidXMLChar(aContent.codePointAt(i))) {
        aContent.setCharAt(i, ' ');
        i++;
        continue;
      }

      // Set up how many characters we want to skip
      int seek = i + 1;

      // Do we maybe have an entity?
      if (aContent.charAt(i) == '&') {
        // REC 2006-10-21 Some PDFs seem to have entities and others
        // don't
        // so we may encounter &'s that do not introduce an entity and
        // just ignore them.
        final int end = aContent.indexOf(";", i);
        if (end != -1) {
          final String cand = aContent.substring(i, end + 1);
          String r = null;
          try {
            if (cand.startsWith("&#x")) {
              final int cp = Integer.parseInt(cand.substring(2, cand.length() - 1), 16);
              r = isValidXMLChar(cp) ? String.valueOf(Character.toChars(cp)) : " ";
            } else if (cand.startsWith("&#")) {
              final int cp = Integer.parseInt(cand.substring(2, cand.length() - 1));
              r = isValidXMLChar(cp) ? String.valueOf(Character.toChars(cp)) : " ";
            } else {
              // RE 2006-10-22 The chance that there is a & and a
              // ;
              // together in a string is quite big. Let's be
              // tolerant.
            }
          } catch (final NumberFormatException e) {
            log.warn("Invalid numeric entity in fragment [" + cand + "] - Dropping it.");
          }

          // Expand the entity and set proper skip (if found)
          if (r != null) {
            aContent.replace(i, i + cand.length(), r);
            seek = i + r.length();
          }
        }
      }

      // Match against the Trie after numeric entity expansion is over
      if (substitutionTable != null) {
        final Trie<String>.Node match = substitutionTable.getNode(aContent, i);
        if (match != null) {
          aContent.replace(i, i + match.level, match.value);
          seek = i + match.value.length();
        }
      }

      // Check line breaks
      while (i < seek) {
        if (aContent.charAt(i) == '\n') {
          lastBreak = i;
        } else if (Character.isWhitespace(aContent.codePointAt(i)) && (i > (lastBreak + 79))) {
          lastBreak = i;
          aContent.replace(i, i + 1, "\n");
        }
        i++;
      }
    }

    return aContent;
  }