org.hsqldb.lib
Class StringUtil

java.lang.Object
  org.hsqldb.lib.StringUtil

public class StringUtil

extends Object

Provides a collection of convenience methods for processing and creating objects with String value components.

Since:

1.7.0

Version:

1.7.2

Author:

fredt@users, boucherb@users.sourceforge.net

Constructor Summary

StringUtil()

Method Summary

static void	appendPair(StringBuffer b, String s1, String s2, String separator, String terminator)
static String	arrayToString(Object array)
static String	getList(int[] s, String separator, String quote) Builds a CSV list from the specified int[], separator String and quote String.
static String	getList(String[][] s, String separator, String quote) Builds a CSV list from the specified String[][], separator string and quote string.
static String	getList(String[] s, String separator, String quote) Builds a CSV list from the specified String[], separator string and quote string.
static boolean	isEmpty(String s) Checks if text is empty (characters <= space)
static int	rTrimSize(String s)
static int	skipSpaces(String s, int start) Skips any spaces at or after start and returns the index of first non-space character;
static String	toLowerSubset(String source, char substitute) Returns a string with non alphanumeric chars converted to the substitute character.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringUtil

public StringUtil()

Method Detail

toLowerSubset

public static String toLowerSubset(String source,
                                   char substitute)

Returns a string with non alphanumeric chars converted to the substitute character. A digit first character is also converted. By sqlbob@users

Parameters:

source - string to convert

substitute - character to use

Returns:

converted string

arrayToString

public static String arrayToString(Object array)

getList

public static String getList(String[] s,
                             String separator,
                             String quote)

Builds a CSV list from the specified String[], separator string and quote string.

• All arguments are assumed to be non-null.
• Separates each list element with the value of the separator argument.
• Prepends and appends each element with the value of the quote argument.
• No attempt is made to escape the quote character sequence if it is found internal to a list element.

  Parameters:

  separator - the String to use as the list element separator

  quote - the String with which to quote the list elements

  s - array of String objects

  Returns:

  a CSV list

getList

public static String getList(int[] s,
                             String separator,
                             String quote)

Builds a CSV list from the specified int[], separator String and quote String.

• All arguments are assumed to be non-null.
• Separates each list element with the value of the separator argument.
• Prepends and appends each element with the value of the quote argument.

  Parameters:

  s - the array of int values

  separator - the String to use as the separator

  quote - the String with which to quote the list elements

  Returns:

  a CSV list

getList

public static String getList(String[][] s,
                             String separator,
                             String quote)

Builds a CSV list from the specified String[][], separator string and quote string.

• All arguments are assumed to be non-null.
• Uses only the first element in each subarray.
• Separates each list element with the value of the separator argument.
• Prepends and appends each element with the value of the quote argument.
• No attempt is made to escape the quote character sequence if it is found internal to a list element.

  Parameters:

  separator - the String to use as the list element separator

  quote - the String with which to quote the list elements

  s - the array of String array objects

  Returns:

  a CSV list

appendPair

public static void appendPair(StringBuffer b,
                              String s1,
                              String s2,
                              String separator,
                              String terminator)

isEmpty

public static boolean isEmpty(String s)

Checks if text is empty (characters <= space)

Parameters:

s - java.lang.String

Returns:

boolean true if text is null or empty, false otherwise

rTrimSize

public static int rTrimSize(String s)

skipSpaces

public static int skipSpaces(String s,
                             int start)

Skips any spaces at or after start and returns the index of first non-space character;