/**
* ** Returns true if the specified character is a valid character to use in ** an ID ** @param ch
* The character ** @return True if the specified character is a valid character to use in ** an
* ID
*/
public static boolean isValidIDChar(char ch) {
// At a minimum, avoid the following special chars:
// $ - substitution character
// {} - have had problems using this character in MySQL
// % - MySQL wildcard character
// * - generic wildcard character
// \ - escape character
// ? - just don't use it
// , - will get confused as a field separator
// | - will get confused as a field separator
// / - will get confused as a field separator
// = - will get confused as a key=value separator
// "'` - quotation characters
// # - possible beginning of comment
// ~ - just don't use it
// ? - just don't use it
// ^ - just don't use it
// Pending possibles:
// ! - Looks like '|'?
// - - ?
// + - ?
// @abc,#abc,_abc,.abc,&abc
if (Character.isLetterOrDigit(ch)) {
return true;
} else if ((ch == '.') || (ch == '_')) {
// definately accept these
return true;
} else if ((ch == '@') || (ch == '&') || (ch == '-')) {
// we'll consider these
return true;
} else {
return false;
}
}
/** 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);
}
}
/**
* ** Filters an ID String, convertering all letters to lowercase and ** removing invalid
* characters ** @param text The ID String to filter ** @return The filtered ID String
*/
public static String FilterID(String text) {
// ie. "sky.12", "acme@123"
if (text != null) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < text.length(); i++) {
char ch = Character.toLowerCase(text.charAt(i));
if (DBRecordKey.isValidIDChar(ch)) {
sb.append(ch);
}
}
return sb.toString();
} else {
return "";
}
}
private static String FilterID(String id) {
if (id == null) {
return null;
} else {
StringBuffer newID = new StringBuffer();
int st = 0;
for (int i = 0; i < id.length(); i++) {
char ch = Character.toLowerCase(id.charAt(i));
if (Character.isLetterOrDigit(ch)) {
newID.append(ch);
st = 1;
} else if (st == 1) {
newID.append("_");
st = 0;
} else {
// ignore char
}
}
while ((newID.length() > 0) && (newID.charAt(newID.length() - 1) == '_')) {
newID.setLength(newID.length() - 1);
}
return newID.toString();
}
}
/**
* Returns true if two names match without regard to case or the presence of '-' or '_'
* characters.
*
* @param beanName The name of the bean property to compare
* @param elementName The name of the element to compare
* @return True if the names match
*/
public static boolean namesMatch(String beanName, String elementName) {
int beanNameLen = beanName.length();
int elementNameLen = elementName.length();
int elementPos = 0;
int beanPos = 0;
// Keep looping until you hit the end of either of the strings
while ((elementPos < elementNameLen) && (beanPos < beanNameLen)) {
// If the next character in the bean name is a '-' or a '/', skip it
char beanCh = Character.toLowerCase(beanName.charAt(beanPos));
if ((beanCh == '-') || (beanCh == '_')) {
beanPos++;
continue;
}
// If the next character in the element name is a '-' or a '/', skip it
char elementCh = Character.toLowerCase(elementName.charAt(elementPos));
if ((elementCh == '-') || (elementCh == '_')) {
elementPos++;
continue;
}
// If the characters don't match, the names don't match
if (elementCh != beanCh) return false;
elementPos++;
beanPos++;
}
// You hit the end of both names at the same time, the names match
if ((elementPos == elementNameLen) && (beanPos == beanNameLen)) {
return true;
}
return false;
}
private String modifyCharacter(Character baseChar, Character modifierChar) {
String result = null;
switch (classifyChar(modifierChar)) {
case DIAERESIS:
result = addDiaeresisToCharV1(baseChar);
break;
case ACUTE_ACCENT:
result = addAcuteAccentToChar(baseChar);
break;
case GRAVE_ACCENT:
result = addGraveAccentToChar(baseChar);
break;
case CIRCUMFLEX:
result = addCircumflexAccentToChar(baseChar);
break;
case TILDE:
result = addTildeToChar(baseChar);
break;
case NORDIC_RING:
result = addNordicRingToChar(baseChar);
break;
case CZECH_CARON:
result = addCzechCaronToChar(baseChar);
break;
case CEDILLA:
result = addCedillaToChar(baseChar);
break;
case NOT_A_MODIFIER:
result = baseChar.toString();
break;
default:
break;
}
if (result == null) {
LOGGER.debug(
"FIXME: cannot apply modifier '" + modifierChar + "' to character '" + baseChar + "'");
}
return result;
}
private static short[] load(String name, Reader input, Model.Translator translator)
throws java.io.IOException {
short[] sequence = null;
char[] buffer = new char[10240];
int len;
while ((len = input.read(buffer)) > 0) {
for (int i = len - 1; i >= 0; i--) {
if (Character.isWhitespace(buffer[i])) {
if (i == (len - 1)) {
len--;
} else {
System.arraycopy(buffer, i + 1, buffer, i, len - i - 1);
}
}
}
int start;
if (sequence == null) {
sequence = new short[len];
start = 0;
} else {
start = sequence.length;
short[] newseq = new short[sequence.length + len];
System.arraycopy(sequence, 0, newseq, 0, sequence.length);
sequence = newseq;
}
for (int i = 0; i < len; i++) {
sequence[start + i] = translator.translate(buffer[i]);
if (sequence[start + i] < 0) {
throw new IOException(
"Sequence character '"
+ buffer[i]
+ "' ("
+ ((int) buffer[i])
+ ") at offset "
+ (start + i)
+ " is not in the model's lexicon.");
}
}
}
return sequence;
}
/**
* Get any children that match this name or path. Similar to getChild(), but will grab multiple
* matches rather than only the first.
*
* @param name element name or path/to/element
* @return array of child elements that match
* @author processing.org
*/
public XML[] getChildren(String name) {
if (name.length() > 0 && name.charAt(0) == '/') {
throw new IllegalArgumentException("getChildren() should not begin with a slash");
}
if (name.indexOf('/') != -1) {
return getChildrenRecursive(PApplet.split(name, '/'), 0);
}
// if it's a number, do an index instead
// (returns a single element array, since this will be a single match
if (Character.isDigit(name.charAt(0))) {
return new XML[] {getChild(Integer.parseInt(name))};
}
int childCount = getChildCount();
XML[] matches = new XML[childCount];
int matchCount = 0;
for (int i = 0; i < childCount; i++) {
XML kid = getChild(i);
String kidName = kid.getName();
if (kidName != null && kidName.equals(name)) {
matches[matchCount++] = kid;
}
}
return (XML[]) PApplet.subset(matches, 0, matchCount);
}
/**
* Internal helper function for getChild(String).
*
* @param items result of splitting the query on slashes
* @param offset where in the items[] array we're currently looking
* @return matching element or null if no match
* @author processing.org
*/
protected XML getChildRecursive(String[] items, int offset) {
// if it's a number, do an index instead
if (Character.isDigit(items[offset].charAt(0))) {
XML kid = getChild(Integer.parseInt(items[offset]));
if (offset == items.length - 1) {
return kid;
} else {
return kid.getChildRecursive(items, offset + 1);
}
}
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
XML kid = getChild(i);
String kidName = kid.getName();
if (kidName != null && kidName.equals(items[offset])) {
if (offset == items.length - 1) {
return kid;
} else {
return kid.getChildRecursive(items, offset + 1);
}
}
}
return null;
}
