Package org.cdlib.mrt.utility

Class RegexUtil

java.lang.Object

org.cdlib.mrt.utility.RegexUtil

public class RegexUtil
extends Object

 This class contains a set of utilities that were built to emulate some
 of the nicer Perl conversion functions.

 Note that the Regex handling uses RegexCache for caching the compiled form 
 of the regular expression

 Created on January 29, 2004, 12:22 PM
 

Author:

David Loy

Constructor Summary

Constructors

Constructor	Description
RegexUtil()

Method Summary

Modifier and Type	Method	Description
static String[]	listMatches(String inStr, String patternS)	Return list of multiple matches from single pattern match
static String[]	listPattern(String inStr, String patternS)	Return the subpattern matches for a single pattern
static String	replacePatternString(String inStr, String patternS, String fromValue, String toValue)	Use from and to values to do a replacement within strings matching the given pattern
static String	replaceString(String in, String from, String to)	replace a substring value with another substring value
static String	substitute(String inStr, String patternS, String[] array)	Based on Perl substitute - constructs a response string using the paranthetical subpatterns
static String	substitute(String inStr, String patternS, String[] array, int flags)	Based on Perl substitute - constructs a response string using the paranthetical subpatterns

Methods inherited from class java.lang.Object

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

Constructor Details

RegexUtil

public RegexUtil()

Method Details

replaceString

public static String replaceString(String in,
 String from,
 String to)

replace a substring value with another substring value

Parameters:

in - - string to have value replace

from - - current substring value in 'in'

to - - replacement value for 'from'

Returns:

- new string with replaced substrings

replacePatternString

public static String replacePatternString(String inStr,
 String patternS,
 String fromValue,
 String toValue)

Use from and to values to do a replacement within strings matching the given pattern

Parameters:

inStr - string to match

patternS - pattern to be matched

fromValue - string to be matched for replacement

toValue - string used for replacement

Returns:

string containing replacements

listMatches

public static String[] listMatches(String inStr,
 String patternS)

Return list of multiple matches from single pattern match

Parameters:

inStr - string to match

patternS - pattern to be matched

Returns:

list of strings containing the subpattern match

substitute

public static String substitute(String inStr,
 String patternS,
 String[] array)

Based on Perl substitute - constructs a response string using the paranthetical subpatterns

Parameters:

inStr - string to match

patternS - pattern to be matches

array - contains a set of String values that will be sequentially used to construct the output. The array element may contain a reference to the match substring - so "$1" corresponds to the first matched subpattern

Returns:

list of strings containing the subpattern match

substitute

public static String substitute(String inStr,
 String patternS,
 String[] array,
 int flags)

Based on Perl substitute - constructs a response string using the paranthetical subpatterns

Parameters:

inStr - string to match

patternS - pattern to be matches

array - contains a set of String values that will be sequentially used to construct the output. The array element may contain a reference to the match substring - so "$1" corresponds to the first matched subpattern

Returns:

list of strings containing the subpattern match

listPattern

public static String[] listPattern(String inStr,
 String patternS)

Return the subpattern matches for a single pattern

Parameters:

inStr - string to match

patternS - pattern to be matched

Returns:

list of strings containing the subpattern match