org.ka2ddo.util

Class StringUtil

java.lang.Object

org.ka2ddo.util.StringUtil

public class StringUtil
extends java.lang.Object

This class provides various helper functions for String operations beyond what the String class provides.

Since:

PROVIDER_API_VERSION == 35

Author:

Andrew Pavlin, KA2DDO

Method Summary

Modifier and Type	Method and Description
static java.lang.String[]	split(java.lang.String line, char separator) This is a more optimized version of String.split() that doesn't require compiling and evaluating regular expression patterns to do it, thereby saving chunks of transient heap (and probably some CPU time as well).
static java.lang.String[]	splitCSV(java.lang.String line) This is a more optimized version of String.split() that doesn't require compiling and evaluating regular expression patterns to do it, thereby saving chunks of transient heap (and probably some CPU time as well); this version recognizes quoting and only uses commas as delimiters.
static java.lang.String	trim(java.lang.String s) Trim leading and trailing whitespace from a String like java.lang.String's trim() method, except it recognizes all Unicode whitespace characters instead of just ISO-Latin-1.
static java.lang.String	trim(java.lang.String s, int left, int right) Trim leading and trailing whitespace from a String like java.lang.String's trim() method, except it recognizes all Unicode whitespace characters instead of just ISO-Latin-1.
static java.lang.String	trimWithUnderscore(java.lang.String s) The leading and trailing whitespace from a string like java.langString's trim() method, except it recognizes all Unicode whitespace characters instead of just ISO-Latin-1, and also trims leading and trailing underscores (for text that had whitespace replaced with underscores).

Methods inherited from class java.lang.Object

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

Method Detail

trim

public static java.lang.String trim(java.lang.String s)

Trim leading and trailing whitespace from a String like java.lang.String's trim() method, except it recognizes all Unicode whitespace characters instead of just ISO-Latin-1.

Parameters:

s - String to trim

Returns:

trimmed String

trim

public static java.lang.String trim(java.lang.String s,
                                    int left,
                                    int right)

Trim leading and trailing whitespace from a String like java.lang.String's trim() method, except it recognizes all Unicode whitespace characters instead of just ISO-Latin-1.

Parameters:

s - String to trim

left - zero-based left-end starting position

right - zero-based right-end starting position

Returns:

trimmed String

Since:

PROVIDER_API_VERSION == 47

trimWithUnderscore

public static java.lang.String trimWithUnderscore(java.lang.String s)

The leading and trailing whitespace from a string like java.langString's trim() method, except it recognizes all Unicode whitespace characters instead of just ISO-Latin-1, and also trims leading and trailing underscores (for text that had whitespace replaced with underscores).

Parameters:

s - String to trim

Returns:

trimmed String

split

public static java.lang.String[] split(java.lang.String line,
                                       char separator)

This is a more optimized version of String.split() that doesn't require compiling and evaluating regular expression patterns to do it, thereby saving chunks of transient heap (and probably some CPU time as well).

This method was originally (and still is) in the AX25Message class, but really belongs in a more general class. It was also left in its original place for backwards compatibility.

Parameters:

line - the String to split at occurrences of the separator

separator - the String delimiting substrings of the line

Returns:

array of Strings split at the various points the separator appears

splitCSV

public static java.lang.String[] splitCSV(java.lang.String line)

This is a more optimized version of String.split() that doesn't require compiling and evaluating regular expression patterns to do it, thereby saving chunks of transient heap (and probably some CPU time as well); this version recognizes quoting and only uses commas as delimiters.

Parameters:

line - the String to split at occurrences of the separator

Returns:

array of Strings split at the various points commas appears

Since:

PROVIDER_API_VERSION == 47