Package org.eclipse.rdf4j.common.text

Class StringUtil

java.lang.Object

org.eclipse.rdf4j.common.text.StringUtil

public class StringUtil
extends Object

Constructor Summary

Constructors

Constructor	Description
StringUtil()

Method Summary

Modifier and Type	Method	Description
static void	appendN(char c, int n, StringBuilder sb)	Appends the specified character n times to the supplied StringBuilder.
static void	simpleEscapeIRI(String str, Appendable appendable, boolean escapeUnicode)	Escapes a string to a (mostly) conforming IRI value and append it to the appendable.
static String	trimDoubleQuotes(String text)	Removes the double quote from the start and end of the supplied string if it starts and ends with this character.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

StringUtil

public StringUtil()

Method Details

simpleEscapeIRI

public static void simpleEscapeIRI(String str,
 Appendable appendable,
 boolean escapeUnicode)
                            throws IOException

Escapes a string to a (mostly) conforming IRI value and append it to the appendable.

Non-ASCII (valid) values can optionally be numerically encoded by setting escapeUnicode to true. Most characters that are invalid in an IRI - like a white space or control character - are percent-encoded.

This is slightly faster than ParsedIRI.create(String) for valid IRI (without percents) and much faster for IRI with invalid (percent-encoded) characters, though it is less accurate.

Parameters:

str -

appendable -

escapeUnicode - escape non-ASCII values numerically

Throws:

IOException

appendN

public static void appendN(char c,
 int n,
 StringBuilder sb)

Appends the specified character n times to the supplied StringBuilder.

Parameters:

c - The character to append.

n - The number of times the character should be appended.

sb - The StringBuilder to append the character(s) to.

trimDoubleQuotes

public static String trimDoubleQuotes(String text)

Removes the double quote from the start and end of the supplied string if it starts and ends with this character. This method does not create a new string if text doesn't start and end with double quotes, the text object itself is returned in that case.

Parameters:

text - The string to remove the double quotes from.

Returns:

The trimmed string, or a reference to text if it did not start and end with double quotes.