/** Receive notification of character data inside an element. */
@Override
public void characters(char ch[], int start, int len) {
while (len > 0 && Character.isWhitespace(ch[start])) {
++start;
--len;
}
while (len > 0 && Character.isWhitespace(ch[start + len - 1])) {
--len;
}
if (len > 0) {
if (_chars.length() > 0) {
_chars.append(' ');
}
_chars.append(ch, start, len);
}
}
/**
* Tokenizes a command string into a list.
*
* @throws Exception if the command cannot be tokenized
*/
protected static LinkedList _tokenizeCommand(String cmd) throws Exception {
LinkedList tokens = new LinkedList();
int startIndex = 0;
int dQuoteAt = cmd.indexOf('"');
int sQuoteAt = cmd.indexOf('\'');
if (dQuoteAt == -1 && sQuoteAt == -1) {
StringTokenizer st = new StringTokenizer(cmd.trim());
while (st.hasMoreTokens()) {
tokens.add(st.nextToken());
}
return tokens;
}
char[] chArray = cmd.trim().toCharArray();
int endIndex = 0;
boolean inQuotes = false;
char c = 0;
char lastc = 0;
char lastqc = 0;
StringBuffer sb = new StringBuffer(80);
while (endIndex < chArray.length) {
c = chArray[endIndex];
if (!Character.isWhitespace(c)) {
if (c == '"' || c == '\'') {
if (inQuotes && lastc != '\\' && lastqc == c) {
tokens.add(sb.toString());
inQuotes = false;
sb.setLength(0);
} else if (!inQuotes) {
inQuotes = true;
lastqc = c;
} else {
sb.append(c);
}
} else if (c == '\\') {
if (lastc == '\\') sb.append(c);
} else {
sb.append(c);
}
} else {
if (inQuotes) {
sb.append(c);
} else {
if (sb.length() > 0) {
tokens.add(sb.toString());
sb.setLength(0);
}
}
}
lastc = c;
++endIndex;
}
if (inQuotes) {
throw new Exception(
WDExUtil.formatMessage(WDExConstants.UNTERMINATED_STRING, WDUtil.toArray(cmd)));
}
return tokens;
}