/* Returns the numer of times substr is contained inside string.
*/
public static SchemaTypeNumber countSubstring(SchemaString string, SchemaString substr) {
int nResult = 0;
for (int i = 0; i <= string.getValue().length(); ++i)
if (string.getValue().startsWith(substr.getValue(), i)) nResult++;
return new SchemaInt(nResult);
}
/* Returns the index within the string of the first occurrence of the specified substring, starting at the specified index. The first character has index=1. If the substring was not found 0 is returned.
*/
public static SchemaTypeNumber findSubstring(
SchemaString string, SchemaString substr, SchemaTypeNumber startindex) {
int nStart = startindex.intValue();
if (nStart > 0)
return new SchemaInt(string.getValue().indexOf(substr.getValue(), nStart - 1) + 1);
else return new SchemaInt(string.getValue().indexOf(substr.getValue()) + 1);
}
/* Removes whitespaces on the left end of the given string.
*/
public static SchemaString leftTrim(SchemaString string) {
String s = string.getValue();
int nPosition = 0;
while (nPosition < s.length() && Character.isWhitespace(s.charAt(nPosition))) {
nPosition++;
}
try {
return new SchemaString(string.getValue().substring(nPosition, string.getValue().length()));
} catch (IndexOutOfBoundsException e) {
return new SchemaString(string);
}
}
/* Returns the index within this string of the rightmost occurrence of the specified substring, starting at the specified index. The first character has index=0. If the substring was not found -1 is returned.
*/
public static SchemaTypeNumber reversefindSubstring(
SchemaString string, SchemaString substr, SchemaTypeNumber endindex) {
int nLastPosition = -1;
int nActPosition = string.getValue().indexOf(substr.getValue());
int nEndIndex = endindex.intValue();
if (nEndIndex < 0) nEndIndex = string.toString().length();
while (nActPosition > -1 && nActPosition < nEndIndex) { // note: endindex is 1 based
nLastPosition = nActPosition;
nActPosition = string.getValue().indexOf(substr.getValue(), nActPosition + 1);
}
return new SchemaInt(nLastPosition + 1);
}
/* Returns a string with the given number of characters on the left of the given string.
*/
public static SchemaString left(SchemaString string, SchemaTypeNumber number) {
try {
return new SchemaString(string.getValue().substring(0, number.intValue()));
} catch (IndexOutOfBoundsException e) {
return new SchemaString(string);
}
}
/* Returns a string with the given number of characters on the right side of the given string.
*/
public static SchemaString right(SchemaString string, SchemaTypeNumber number) {
String s = string.getValue();
try {
return new SchemaString(s.substring(s.length() - number.intValue(), s.length()));
} catch (IndexOutOfBoundsException e) {
return new SchemaString(string);
}
}
/* Removes whitespaces on the right end of the given string.
*/
public static SchemaString rightTrim(SchemaString string) {
String s = string.getValue();
int nPosition = s.length();
while (nPosition > 0 && Character.isWhitespace(s.charAt(nPosition - 1))) {
nPosition--;
}
try {
return new SchemaString(s.substring(0, nPosition));
} catch (IndexOutOfBoundsException e) {
return new SchemaString(string);
}
}
/* Formats a GUID correctly to use it in databases.
*/
public static SchemaString formatGuidString(SchemaString val) {
String sGuid = val.toString();
if (sGuid.length() != 32) return new SchemaString(); // input value is not correct
String sBuffer;
String sResult = "";
for (int i = 0; i < 16; ++i) {
sBuffer = sGuid.substring(i * 2, 2);
sResult += sBuffer;
if (i == 3 || i == 5 || i == 7 || i == 9)
sResult += "-"; // format correctly because it is used as string.
}
return new SchemaString(sResult);
}
/* Turns every first character of a word into upper-case letters.
*/
public static SchemaString capitalize(SchemaString value) {
String sResult = value.getValue();
int nPos = -1;
while (true) {
if (nPos < sResult.length() - 1) {
sResult =
sResult.substring(0, nPos + 1)
+ sResult.substring(nPos + 1, nPos + 2).toUpperCase()
+ sResult.substring(nPos + 2, sResult.length());
}
nPos = sResult.indexOf(" ", nPos + 1);
if (nPos < 0) break;
}
return new SchemaString(sResult);
}
/* Replaces each substring of this string that matches the given oldstring with the given newstring.
*/
public static SchemaString replace(
SchemaString value, SchemaString oldstring, SchemaString newstring) {
String sResult = value.getValue();
int nPos = sResult.indexOf(oldstring.getValue());
while (nPos >= 0) {
sResult =
sResult.substring(0, nPos)
+ newstring.getValue()
+ sResult.substring(nPos + oldstring.getValue().length(), sResult.length());
nPos = sResult.indexOf(oldstring.getValue(), nPos + newstring.getValue().length());
}
return new SchemaString(sResult);
}
/* Returns true if the string value is empty. Otherwise false is returned.
*/
public static SchemaBoolean empty(SchemaString value) {
return new SchemaBoolean(value.getValue().length() == 0);
}
/* Tells whether or not this string matches the given regular expression.
*/
public static SchemaBoolean matchPattern(SchemaString string, SchemaString pattern) {
return new SchemaBoolean(string.getValue().matches(pattern.getValue()));
}
/* Performes a string comparation ignoring the case of characters. Returns 0 if strings are equal. Returns -1 if string1 < string2. Returns +1 if string1 > string2.
*/
public static SchemaTypeNumber stringCompareIgnoreCase(
SchemaString string1, SchemaString string2) {
return new SchemaInt(string1.getValue().compareToIgnoreCase(string2.getValue()));
}
/* Returns the numeric code of the first character given by the string value.
*/
public static SchemaTypeNumber codeFromChar(SchemaString value) {
return new SchemaInt((int) value.getValue().charAt(0));
}
/* Result is the lowercase version of all the characters in the string.
*/
public static SchemaString lowercase(SchemaString string) {
return new SchemaString(string.getValue().toLowerCase());
}