X-Git-Url: http://secure.phpeclipse.com diff --git a/net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/model/StringMatcher.java b/net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/model/StringMatcher.java index e4c530b..797be51 100644 --- a/net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/model/StringMatcher.java +++ b/net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/model/StringMatcher.java @@ -1,74 +1,90 @@ package net.sourceforge.phpdt.externaltools.model; + /********************************************************************** -Copyright (c) 2000, 2002 IBM Corp. All rights reserved. -This file is made available under the terms of the Common Public License v1.0 -which accompanies this distribution, and is available at -http://www.eclipse.org/legal/cpl-v10.html -**********************************************************************/ + Copyright (c) 2000, 2002 IBM Corp. All rights reserved. + This file is made available under the terms of the Common Public License v1.0 + which accompanies this distribution, and is available at + http://www.eclipse.org/legal/cpl-v10.html + **********************************************************************/ import java.util.Vector; /** * Copied from net.sourceforge.phpdt.internal.ui.util.StringMatcher * - * A string pattern matcher, suppporting * and ? wildcards. + * A string pattern matcher, suppporting * and ? wildcards. */ public class StringMatcher { protected String fPattern; + protected int fLength; // pattern length + protected boolean fIgnoreWildCards; + protected boolean fIgnoreCase; + protected boolean fHasLeadingStar; + protected boolean fHasTrailingStar; - protected String fSegments[]; //the given pattern is split into * separated segments - /* boundary value beyond which we don't need to search in the text */ - protected int fBound= 0; + protected String fSegments[]; // the given pattern is split into * + // separated segments + /* boundary value beyond which we don't need to search in the text */ + protected int fBound = 0; - protected static final char fSingleWildCard= '\u0000'; + protected static final char fSingleWildCard = '\u0000'; public static class Position { - int start; //inclusive - int end; //exclusive + int start; // inclusive + + int end; // exclusive + public Position(int start, int end) { - this.start= start; - this.end= end; + this.start = start; + this.end = end; } + public int getStart() { return start; } + public int getEnd() { return end; } } + /** * 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. - * + * 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 "\" - * + * 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 "\\". - * - * @param pattern the pattern to match text against - * @param ignoreCase if true, case is ignored - * @param ignoreWildCards if true, wild cards and their escape sequences are ignored - * (everything is taken literally). + * + * @param pattern + * the pattern to match text against + * @param ignoreCase + * if true, case is ignored + * @param ignoreWildCards + * if true, wild cards and their escape sequences are ignored + * (everything is taken literally). */ - public StringMatcher(String pattern, boolean ignoreCase, boolean ignoreWildCards) { + public StringMatcher(String pattern, boolean ignoreCase, + boolean ignoreWildCards) { if (pattern == null) throw new IllegalArgumentException(); - fIgnoreCase= ignoreCase; - fIgnoreWildCards= ignoreWildCards; - fPattern= pattern; - fLength= pattern.length(); + fIgnoreCase = ignoreCase; + fIgnoreWildCards = ignoreWildCards; + fPattern = pattern; + fLength = pattern.length(); if (fIgnoreWildCards) { parseNoWildCards(); @@ -76,8 +92,10 @@ public class StringMatcher { parseWildCards(); } } + /** - * Find the first occurrence of the pattern between startstartend(exclusive). * @param text, the String object to search in * @param start, the starting index of the search range, inclusive @@ -93,56 +111,64 @@ public class StringMatcher { if (text == null) throw new IllegalArgumentException(); - int tlen= text.length(); + int tlen = text.length(); if (start < 0) - start= 0; + start = 0; if (end > tlen) - end= tlen; - if (end < 0 ||start >= end ) + end = tlen; + if (end < 0 || start >= end) return null; if (fLength == 0) return new Position(start, start); if (fIgnoreWildCards) { - int x= posIn(text, start, end); + int x = posIn(text, start, end); if (x < 0) return null; - return new Position(x, x+fLength); + return new Position(x, x + fLength); } - int segCount= fSegments.length; - if (segCount == 0)//pattern contains only '*'(s) - return new Position (start, end); + int segCount = fSegments.length; + if (segCount == 0)// pattern contains only '*'(s) + return new Position(start, end); - int curPos= start; - int matchStart= -1; + int curPos = start; + int matchStart = -1; int i; - for (i= 0; i < segCount && curPos < end; ++i) { - String current= fSegments[i]; - int nextMatch= regExpPosIn(text, curPos, end, current); - if (nextMatch < 0 ) + for (i = 0; i < segCount && curPos < end; ++i) { + String current = fSegments[i]; + int nextMatch = regExpPosIn(text, curPos, end, current); + if (nextMatch < 0) return null; - if(i == 0) - matchStart= nextMatch; - curPos= nextMatch + current.length(); + if (i == 0) + matchStart = nextMatch; + curPos = nextMatch + current.length(); } if (i < segCount) return null; return new Position(matchStart, curPos); } + /** * match the given text with the pattern + * * @return true if matched eitherwise false * @param text, a String object */ public boolean match(String text) { return match(text, 0, text.length()); } + /** - * Given the starting (inclusive) and the ending (exclusive) positions in the - * text, determine if the given substring matches with aPattern + * Given the starting (inclusive) and the ending (exclusive) positions in + * the text, determine if the given substring matches with + * aPattern + * * @return true if the specified portion of the text matches the pattern - * @param String text, a String object that contains the substring to match - * @param int start marks the starting position (inclusive) of the substring + * @param String + * text, a String object that contains the + * substring to match + * @param int + * start marks the starting position (inclusive) of the substring * @param int end marks the ending index (exclusive) of the substring */ public boolean match(String text, int start, int end) { @@ -153,123 +179,135 @@ public class StringMatcher { return false; if (fIgnoreWildCards) - return (end - start == fLength) && fPattern.regionMatches(fIgnoreCase, 0, text, start, fLength); - int segCount= fSegments.length; - if (segCount == 0 && (fHasLeadingStar || fHasTrailingStar)) // pattern contains only '*'(s) + return (end - start == fLength) + && fPattern.regionMatches(fIgnoreCase, 0, text, start, + fLength); + int segCount = fSegments.length; + if (segCount == 0 && (fHasLeadingStar || fHasTrailingStar)) // pattern + // contains + // only + // '*'(s) return true; if (start == end) return fLength == 0; if (fLength == 0) return start == end; - int tlen= text.length(); + int tlen = text.length(); if (start < 0) - start= 0; + start = 0; if (end > tlen) - end= tlen; + end = tlen; - int tCurPos= start; - int bound= end - fBound; - if ( bound < 0) + int tCurPos = start; + int bound = end - fBound; + if (bound < 0) return false; - int i=0; - String current= fSegments[i]; - int segLength= current.length(); + int i = 0; + String current = fSegments[i]; + int segLength = current.length(); /* process first segment */ - if (!fHasLeadingStar){ - if(!regExpRegionMatches(text, start, current, 0, segLength)) { + if (!fHasLeadingStar) { + if (!regExpRegionMatches(text, start, current, 0, segLength)) { return false; } else { ++i; - tCurPos= tCurPos + segLength; + tCurPos = tCurPos + segLength; } } /* process middle segments */ while (i < segCount) { - current= fSegments[i]; + current = fSegments[i]; int currentMatch; - int k= current.indexOf(fSingleWildCard); + int k = current.indexOf(fSingleWildCard); if (k < 0) { - currentMatch= textPosIn(text, tCurPos, end, current); + currentMatch = textPosIn(text, tCurPos, end, current); if (currentMatch < 0) return false; } else { - currentMatch= regExpPosIn(text, tCurPos, end, current); + currentMatch = regExpPosIn(text, tCurPos, end, current); if (currentMatch < 0) return false; } - tCurPos= currentMatch + current.length(); + tCurPos = currentMatch + current.length(); i++; } /* process final segment */ if (!fHasTrailingStar && tCurPos != end) { - int clen= current.length(); + int clen = current.length(); return regExpRegionMatches(text, end - clen, current, 0, clen); } - return i == segCount ; + return i == segCount; } + /** - * This method parses the given pattern into segments seperated by wildcard '*' characters. - * Since wildcards are not being used in this case, the pattern consists of a single segment. + * This method parses the given pattern into segments seperated by wildcard + * '*' characters. Since wildcards are not being used in this case, the + * pattern consists of a single segment. */ private void parseNoWildCards() { - fSegments= new String[1]; - fSegments[0]= fPattern; - fBound= fLength; + fSegments = new String[1]; + fSegments[0] = fPattern; + fBound = fLength; } + /** - * Parses the given pattern into segments seperated by wildcard '*' characters. - * @param p, a String object that is a simple regular expression with �*� and/or �?� + * Parses the given pattern into segments seperated by wildcard '*' + * characters. + * + * @param p, + * a String object that is a simple regular expression with �*� + * and/or �?� */ private void parseWildCards() { - if(fPattern.startsWith("*"))//$NON-NLS-1$ - fHasLeadingStar= true; - if(fPattern.endsWith("*")) {//$NON-NLS-1$ + if (fPattern.startsWith("*"))//$NON-NLS-1$ + fHasLeadingStar = true; + if (fPattern.endsWith("*")) {//$NON-NLS-1$ /* make sure it's not an escaped wildcard */ if (fLength > 1 && fPattern.charAt(fLength - 2) != '\\') { - fHasTrailingStar= true; + fHasTrailingStar = true; } } - Vector temp= new Vector(); + Vector temp = new Vector(); - int pos= 0; - StringBuffer buf= new StringBuffer(); + int pos = 0; + StringBuffer buf = new StringBuffer(); while (pos < fLength) { - char c= fPattern.charAt(pos++); + char c = fPattern.charAt(pos++); switch (c) { - case '\\': - if (pos >= fLength) { - buf.append(c); + case '\\': + if (pos >= fLength) { + buf.append(c); + } else { + char next = fPattern.charAt(pos++); + /* if it's an escape sequence */ + if (next == '*' || next == '?' || next == '\\') { + buf.append(next); } else { - char next= fPattern.charAt(pos++); - /* if it's an escape sequence */ - if (next == '*' || next == '?' || next == '\\') { - buf.append(next); - } else { - /* not an escape sequence, just insert literally */ - buf.append(c); - buf.append(next); - } + /* not an escape sequence, just insert literally */ + buf.append(c); + buf.append(next); } + } break; - case '*': - if (buf.length() > 0) { - /* new segment */ - temp.addElement(buf.toString()); - fBound += buf.length(); - buf.setLength(0); - } + case '*': + if (buf.length() > 0) { + /* new segment */ + temp.addElement(buf.toString()); + fBound += buf.length(); + buf.setLength(0); + } break; - case '?': - /* append special character representing single match wildcard */ - buf.append(fSingleWildCard); + case '?': + /* append special character representing single match wildcard */ + buf.append(fSingleWildCard); break; - default: - buf.append(c); + default: + buf.append(c); } } @@ -279,63 +317,77 @@ public class StringMatcher { fBound += buf.length(); } - fSegments= new String[temp.size()]; + fSegments = new String[temp.size()]; temp.copyInto(fSegments); } + /** * @param text, a string which contains no wildcard - * @param start, the starting index in the text for search, inclusive + * @param start, the starting index in the text for search, + * inclusive * @param end, the stopping point of search, exclusive - * @return the starting index in the text of the pattern , or -1 if not found + * @return the starting index in the text of the pattern , or -1 if not + * found */ - protected int posIn(String text, int start, int end) {//no wild card in pattern - int max= end - fLength; + protected int posIn(String text, int start, int end) {// no wild card in + // pattern + int max = end - fLength; if (!fIgnoreCase) { - int i= text.indexOf(fPattern, start); + int i = text.indexOf(fPattern, start); if (i == -1 || i > max) return -1; return i; } - for (int i= start; i <= max; ++i) { + for (int i = start; i <= max; ++i) { if (text.regionMatches(true, i, fPattern, 0, fLength)) return i; } return -1; } + /** - * @param text, a simple regular expression that may only contain '?'(s) - * @param start, the starting index in the text for search, inclusive + * @param text, a simple regular expression that may only + * contain '?'(s) + * @param start, the starting index in the text for search, + * inclusive * @param end, the stopping point of search, exclusive * @param p, a simple regular expression that may contains '?' * @param caseIgnored, wether the pattern is not casesensitive - * @return the starting index in the text of the pattern , or -1 if not found + * @return the starting index in the text of the pattern , or -1 if not + * found */ protected int regExpPosIn(String text, int start, int end, String p) { - int plen= p.length(); + int plen = p.length(); - int max= end - plen; - for (int i= start; i <= max; ++i) { + int max = end - plen; + for (int i = start; i <= max; ++i) { if (regExpRegionMatches(text, i, p, 0, plen)) return i; } return -1; } + /** - * + * * @return boolean * @param text, a String to match - * @param start, int that indicates the starting index of match, inclusive - * @param end int that indicates the ending index of match, exclusive - * @param p, String, String, a simple regular expression that may contain '?' - * @param ignoreCase, boolean indicating wether code>p is case sensitive + * @param start, int that indicates the starting index of + * match, inclusive + * @param end int that indicates the ending index of match, + * exclusive + * @param p, String, String, a simple regular expression that + * may contain '?' + * @param ignoreCase, boolean indicating wether code>p + * is case sensitive */ - protected boolean regExpRegionMatches(String text, int tStart, String p, int pStart, int plen) { + protected boolean regExpRegionMatches(String text, int tStart, String p, + int pStart, int plen) { while (plen-- > 0) { - char tchar= text.charAt(tStart++); - char pchar= p.charAt(pStart++); + char tchar = text.charAt(tStart++); + char pchar = p.charAt(pStart++); /* process wild cards */ if (!fIgnoreWildCards) { @@ -347,38 +399,47 @@ public class StringMatcher { if (pchar == tchar) continue; if (fIgnoreCase) { - if (Character.toUpperCase(tchar) == Character.toUpperCase(pchar)) + if (Character.toUpperCase(tchar) == Character + .toUpperCase(pchar)) continue; - // comparing after converting to upper case doesn't handle all cases; + // comparing after converting to upper case doesn't handle all + // cases; // also compare after converting to lower case - if (Character.toLowerCase(tchar) == Character.toLowerCase(pchar)) + if (Character.toLowerCase(tchar) == Character + .toLowerCase(pchar)) continue; } return false; } return true; } + /** * @param text, the string to match - * @param start, the starting index in the text for search, inclusive + * @param start, the starting index in the text for search, + * inclusive * @param end, the stopping point of search, exclusive - * @param code>p, a string that has no wildcard - * @param ignoreCase, boolean indicating wether code>p is case sensitive - * @return the starting index in the text of the pattern , or -1 if not found + * @param code>p + * , a string that has no wildcard + * @param + * ignoreCase, boolean indicating wether code>p + * is case sensitive + * @return the starting index in the text of the pattern , or -1 if not + * found */ protected int textPosIn(String text, int start, int end, String p) { - int plen= p.length(); - int max= end - plen; + int plen = p.length(); + int max = end - plen; if (!fIgnoreCase) { - int i= text.indexOf(p, start); + int i = text.indexOf(p, start); if (i == -1 || i > max) return -1; return i; } - for (int i= start; i <= max; ++i) { + for (int i = start; i <= max; ++i) { if (text.regionMatches(true, i, p, 0, plen)) return i; }