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org.eclipse.rse.services.clientserver.search
Class SystemNonRegexMatcher
java.lang.Object
org.eclipse.rse.services.clientserver.search.SystemNonRegexMatcher
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public class SystemNonRegexMatcher
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Object
A string pattern matcher, suppporting * and ? wildcards.
Constructor Summary
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SystemNonRegexMatcher
(
String pattern,
boolean ignoreCase,
boolean ignoreWildCards)
StringMatcher constructor takes in a String object that is a simple
pattern which may contain '*' for 0 and many characters and
'?' |
Method Summary
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SystemNonRegexMatcher.Position
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find
(
String text,
int start,
int end)
Find the first occurrence of the pattern between startend (exclusive). |
boolean
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match
(
String text)
match the given text with the pattern |
boolean
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match
(
String text,
int start,
int end)
Given the starting (inclusive) and the ending (exclusive) positions in the
text , determine if the given substring matches with aPattern |
protected int
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posIn
(
String text,
int start,
int end)
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protected int
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regExpPosIn
(
String text,
int start,
int end,
String p)
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protected boolean
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regExpRegionMatches
(
String text,
int tStart,
String p,
int pStart,
int plen)
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protected int
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textPosIn
(
String text,
int start,
int end,
String p)
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Methods inherited from class java.lang.
Object
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clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
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fPattern
protected
String fPattern
fLength
protected int fLength
fIgnoreWildCards
protected boolean fIgnoreWildCards
fIgnoreCase
protected boolean fIgnoreCase
fHasLeadingStar
protected boolean fHasLeadingStar
fHasTrailingStar
protected boolean fHasTrailingStar
fSegments
protected
String[] fSegments
fBound
protected int fBound
fSingleWildCard
protected static final char fSingleWildCard
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See Also:
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Constant Field Values
SystemNonRegexMatcher
public SystemNonRegexMatcher(
String pattern,
boolean ignoreCase,
boolean ignoreWildCards)
- StringMatcher constructor takes in a String object that is a simple
pattern which may contain '*' for 0 and many characters and
'?' for exactly one character.
Literal '*' and '?' characters must be escaped in the pattern
e.g., "\*" means literal "*", etc.
Escaping any other character (including the escape character itself),
just results in that character in the pattern.
e.g., "\a" means "a" and "\\" means "\"
If invoking the StringMatcher with string literals in Java, don't forget
escape characters are represented by "\\".
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Parameters:
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pattern - the pattern to match text against -
ignoreCase - if true, case is ignored -
ignoreWildCards - if true, wild cards and their escape sequences are ignored
(everything is taken literally).
find
public
SystemNonRegexMatcher.Position find(
String text,
int start,
int end)
- Find the first occurrence of the pattern between
startend (exclusive).
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Parameters:
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text - the String object to search in -
start - the starting index of the search range, inclusive -
end - the ending index of the search range, exclusive
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Returns:
- an
StringMatcher.Position object that keeps the starting
(inclusive) and ending positions (exclusive) of the first occurrence of the
pattern in the specified range of the text; return null if not found or subtext
is empty (start==end). A pair of zeros is returned if pattern is empty string
Note that for pattern like "*abc*" with leading and trailing stars, position of "abc"
is returned. For a pattern like"*??*" in text "abcdf", (1,3) is returned
match
public boolean match(
String text)
- match the given
text with the pattern
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Parameters:
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text - a String object
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Returns:
- true if matched eitherwise false
match
public boolean match(
String text,
int start,
int end)
- Given the starting (inclusive) and the ending (exclusive) positions in the
text , determine if the given substring matches with aPattern
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Parameters:
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text - a String object that contains the substring to match -
start - marks the starting position (inclusive) of the substring -
end - marks the ending index (exclusive) of the substring
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Returns:
- true if the specified portion of the text matches the pattern
posIn
protected int posIn(
String text,
int start,
int end)
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Parameters:
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text - a string which contains no wildcard -
start - the starting index in the text for search, inclusive -
end - the stopping point of search, exclusive
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Returns:
- the starting index in the text of the pattern , or -1 if not found
regExpPosIn
protected int regExpPosIn(
String text,
int start,
int end,
String p)
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Parameters:
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text - a simple regular expression that may only contain '?'(s) -
start - the starting index in the text for search, inclusive -
end - the stopping point of search, exclusive -
p - a simple regular expression that may contains '?' -
caseIgnored - wether the pattern is not casesensitive
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Returns:
- the starting index in the text of the pattern , or -1 if not found
regExpRegionMatches
protected boolean regExpRegionMatches(
String text,
int tStart,
String p,
int pStart,
int plen)
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Parameters:
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text - a String to match -
start - int that indicates the starting index of match, inclusive -
end - int that indicates the ending index of match, exclusive -
p - a simple regular expression that may contain '?' -
ignoreCase - boolean indicating wether p is case sensitive
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Returns:
- boolean
textPosIn
protected int textPosIn(
String text,
int start,
int end,
String p)
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Parameters:
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text - the string to match -
start - the starting index in the text for search, inclusive -
end - the stopping point of search, exclusive -
p - a string that has no wildcard -
ignoreCase - boolean indicating wether p is case sensitive
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Returns:
- the starting index in the text of the pattern , or -1 if not found
Copyright (c) IBM Corporation and others 2000, 2008. All Rights Reserved.
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