mirror of
https://github.com/unicode-org/icu.git
synced 2025-04-13 08:53:20 +00:00
Consolidate rule pattern anteContext, key, and postContext into one string.
X-SVN-Rev: 456
This commit is contained in:
Alan Liu
parent
78c974e7ba
commit
eafcfb09c4
6 changed files with 124 additions and 260 deletions
|
|
@ -181,9 +181,12 @@ import java.util.Vector;
|
|||
* <p>Copyright © IBM Corporation 1999. All rights reserved.
|
||||
*
|
||||
* @author Alan Liu
|
||||
* @version $RCSfile: RuleBasedTransliterator.java,v $ $Revision: 1.4 $ $Date: 1999/12/22 01:05:54 $
|
||||
* @version $RCSfile: RuleBasedTransliterator.java,v $ $Revision: 1.5 $ $Date: 1999/12/22 01:40:54 $
|
||||
*
|
||||
* $Log: RuleBasedTransliterator.java,v $
|
||||
* Revision 1.5 1999/12/22 01:40:54 Alan
|
||||
* Consolidate rule pattern anteContext, key, and postContext into one string.
|
||||
*
|
||||
* Revision 1.4 1999/12/22 01:05:54 Alan
|
||||
* Improve masking checking; turn it off by default, for better performance
|
||||
*
|
||||
|
|
@ -205,7 +208,7 @@ public class RuleBasedTransliterator extends Transliterator {
|
|||
|
||||
static final boolean DEBUG = false;
|
||||
|
||||
static final boolean CHECK_MASKING = false;
|
||||
static final boolean CHECK_MASKING = true;
|
||||
|
||||
private static final String COPYRIGHT =
|
||||
"\u00A9 IBM Corporation 1999. All rights reserved.";
|
||||
|
|
@ -654,8 +657,6 @@ public class RuleBasedTransliterator extends Transliterator {
|
|||
if (errors != null) {
|
||||
throw new IllegalArgumentException(errors.toString());
|
||||
}
|
||||
|
||||
data.ruleSet.freeze();
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -21,9 +21,12 @@ import java.util.Dictionary;
|
|||
* <p>Copyright © IBM Corporation 1999. All rights reserved.
|
||||
*
|
||||
* @author Alan Liu
|
||||
* @version $RCSfile: TransliterationRule.java,v $ $Revision: 1.3 $ $Date: 1999/12/22 01:05:54 $
|
||||
* @version $RCSfile: TransliterationRule.java,v $ $Revision: 1.4 $ $Date: 1999/12/22 01:40:54 $
|
||||
*
|
||||
* $Log: TransliterationRule.java,v $
|
||||
* Revision 1.4 1999/12/22 01:40:54 Alan
|
||||
* Consolidate rule pattern anteContext, key, and postContext into one string.
|
||||
*
|
||||
* Revision 1.3 1999/12/22 01:05:54 Alan
|
||||
* Improve masking checking; turn it off by default, for better performance
|
||||
*
|
||||
|
|
@ -59,9 +62,13 @@ class TransliterationRule {
|
|||
public static final int FULL_MATCH = 2;
|
||||
|
||||
/**
|
||||
* The string that must be matched.
|
||||
* The string that must be matched, consisting of the anteContext, key,
|
||||
* and postContext, concatenated together, in that order. Some components
|
||||
* may be empty (zero length).
|
||||
* @see anteContextLength
|
||||
* @see keyLength
|
||||
*/
|
||||
private String key;
|
||||
private String pattern;
|
||||
|
||||
/**
|
||||
* The string that is emitted if the key, anteContext, and postContext
|
||||
|
|
@ -70,18 +77,17 @@ class TransliterationRule {
|
|||
private String output;
|
||||
|
||||
/**
|
||||
* The string that must match before the key. Must not be the empty string.
|
||||
* May be null; if null, then there is no matching requirement before the
|
||||
* key.
|
||||
* The length of the string that must match before the key. If
|
||||
* zero, then there is no matching requirement before the key.
|
||||
* Substring [0,anteContextLength) of pattern is the anteContext.
|
||||
*/
|
||||
private String anteContext;
|
||||
private int anteContextLength;
|
||||
|
||||
/**
|
||||
* The string that must match after the key. Must not be the empty string.
|
||||
* May be null; if null, then there is no matching requirement after the
|
||||
* key.
|
||||
* The length of the key. Substring [anteContextLength,
|
||||
* anteContextLength + keyLength) is the key.
|
||||
*/
|
||||
private String postContext;
|
||||
private int keyLength;
|
||||
|
||||
/**
|
||||
* The position of the cursor after emitting the output string, from 0 to
|
||||
|
|
@ -90,12 +96,6 @@ class TransliterationRule {
|
|||
*/
|
||||
private int cursorPos;
|
||||
|
||||
/**
|
||||
* A string used to implement masks(). It is the concatenated anteContext,
|
||||
* key, and postContext. See freeze() method.
|
||||
*/
|
||||
private String maskKey;
|
||||
|
||||
private static final String COPYRIGHT =
|
||||
"\u00A9 IBM Corporation 1999. All rights reserved.";
|
||||
|
||||
|
|
@ -120,28 +120,15 @@ class TransliterationRule {
|
|||
public TransliterationRule(String key, String output,
|
||||
String anteContext, String postContext,
|
||||
int cursorPos) {
|
||||
this.key = key;
|
||||
keyLength = key.length();
|
||||
anteContextLength = (anteContext != null) ? anteContext.length() : 0;
|
||||
pattern = (anteContextLength > 0 ? (anteContext + key) : key) +
|
||||
(postContext != null ? postContext : "");
|
||||
this.output = output;
|
||||
this.anteContext = (anteContext != null && anteContext.length() > 0)
|
||||
? anteContext : null;
|
||||
this.postContext = (postContext != null && postContext.length() > 0)
|
||||
? postContext : null;
|
||||
this.cursorPos = cursorPos < 0 ? output.length() : cursorPos;
|
||||
if (this.cursorPos > output.length()) {
|
||||
throw new IllegalArgumentException("Illegal cursor position");
|
||||
}
|
||||
|
||||
/* The mask key is needed when we are adding individual rules to a rule
|
||||
* set, for performance. Here are the numbers: Without mask key, 13.0
|
||||
* seconds. With mask key, 6.2 seconds. However, once the rules have
|
||||
* been added to the set, then they can be discarded to free up space.
|
||||
* This is what the freeze() method does. After freeze() has been
|
||||
* called, the method masks() must NOT be called.
|
||||
*/
|
||||
maskKey = anteContext != null ? (anteContext + key) : key;
|
||||
if (postContext != null) {
|
||||
maskKey += postContext;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -149,15 +136,7 @@ class TransliterationRule {
|
|||
* @return the length of the match key.
|
||||
*/
|
||||
public int getKeyLength() {
|
||||
return key.length();
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the key.
|
||||
* @return the match key.
|
||||
*/
|
||||
public String getKey() {
|
||||
return key;
|
||||
return keyLength;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -182,7 +161,7 @@ class TransliterationRule {
|
|||
* <code>getMaximumContextLength()</code>.
|
||||
*/
|
||||
public int getAnteContextLength() {
|
||||
return anteContext == null ? 0 : anteContext.length();
|
||||
return anteContextLength;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -190,8 +169,6 @@ class TransliterationRule {
|
|||
* r1 matches any input string that r2 matches. If r1 masks r2 and r2 masks
|
||||
* r1 then r1 == r2. Examples: "a>x" masks "ab>y". "a>x" masks "a[b]>y".
|
||||
* "[c]a>x" masks "[dc]a>y".
|
||||
*
|
||||
* <p>This method must not be called after freeze() is called.
|
||||
*/
|
||||
public boolean masks(TransliterationRule r2) {
|
||||
/* Rule r1 masks rule r2 if the string formed of the
|
||||
|
|
@ -218,21 +195,12 @@ class TransliterationRule {
|
|||
* currently do not have. This can be added later.
|
||||
*/
|
||||
|
||||
// maskKey = anteContext + key + postContext
|
||||
int left = getAnteContextLength();
|
||||
int left2 = r2.getAnteContextLength();
|
||||
int right = maskKey.length() - left;
|
||||
int right2 = r2.maskKey.length() - left2;
|
||||
int left = anteContextLength;
|
||||
int left2 = r2.anteContextLength;
|
||||
int right = pattern.length() - left;
|
||||
int right2 = r2.pattern.length() - left2;
|
||||
return left <= left2 && right <= right2 &&
|
||||
r2.maskKey.substring(left2 - left).startsWith(maskKey);
|
||||
}
|
||||
|
||||
/**
|
||||
* Free up space. Once this method is called, masks() must NOT be called.
|
||||
* If it is called, an exception will be thrown.
|
||||
*/
|
||||
public void freeze() {
|
||||
maskKey = null;
|
||||
r2.pattern.substring(left2 - left).startsWith(pattern);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -241,13 +209,15 @@ class TransliterationRule {
|
|||
*/
|
||||
public String toString() {
|
||||
return getClass().getName() + '{'
|
||||
+ escape((anteContext != null ? ("[" + anteContext + ']') : "")
|
||||
+ key
|
||||
+ (postContext != null ? ("[" + postContext + ']') : "")
|
||||
+ escape(anteContextLength > 0 ? ("[" + pattern.substring(0, anteContextLength) +
|
||||
']') : "")
|
||||
+ pattern.substring(anteContextLength, anteContextLength + keyLength)
|
||||
+ (anteContextLength + keyLength < pattern.length() ?
|
||||
("[" + pattern.substring(anteContextLength + keyLength) + ']') : "")
|
||||
+ " -> "
|
||||
+ (cursorPos < output.length()
|
||||
? (output.substring(0, cursorPos) + '|' + output.substring(cursorPos))
|
||||
: output))
|
||||
: output)
|
||||
+ '}';
|
||||
}
|
||||
|
||||
|
|
@ -274,21 +244,14 @@ class TransliterationRule {
|
|||
* altered by this transliterator. If <tt>filter</tt> is
|
||||
* <tt>null</tt> then no filtering is applied.
|
||||
*/
|
||||
public boolean matches(String text, int start, int limit,
|
||||
StringBuffer result, int cursor,
|
||||
Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
return
|
||||
(anteContext == null
|
||||
|| regionMatches(text, start, limit, result,
|
||||
cursor - anteContext.length(),
|
||||
anteContext, variables, filter)) &&
|
||||
regionMatches(text, start, limit, result, cursor,
|
||||
key, variables, filter) &&
|
||||
(postContext == null
|
||||
|| regionMatches(text, start, limit, result,
|
||||
cursor + key.length(),
|
||||
postContext, variables, filter));
|
||||
public final boolean matches(String text, int start, int limit,
|
||||
StringBuffer result, int cursor,
|
||||
Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
// Match anteContext, key, and postContext
|
||||
return regionMatches(text, start, limit, result,
|
||||
cursor - anteContextLength,
|
||||
pattern, variables, filter);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -306,18 +269,13 @@ class TransliterationRule {
|
|||
* altered by this transliterator. If <tt>filter</tt> is
|
||||
* <tt>null</tt> then no filtering is applied.
|
||||
*/
|
||||
public boolean matches(Replaceable text, int start, int limit,
|
||||
int cursor, Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
return
|
||||
(anteContext == null
|
||||
|| regionMatches(text, start, limit, cursor - anteContext.length(),
|
||||
anteContext, variables, filter)) &&
|
||||
regionMatches(text, start, limit, cursor,
|
||||
key, variables, filter) &&
|
||||
(postContext == null
|
||||
|| regionMatches(text, start, limit, cursor + key.length(),
|
||||
postContext, variables, filter));
|
||||
public final boolean matches(Replaceable text, int start, int limit,
|
||||
int cursor, Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
// Match anteContext, key, and postContext
|
||||
return regionMatches(text, start, limit,
|
||||
cursor - anteContextLength,
|
||||
pattern, variables, filter);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -348,28 +306,10 @@ class TransliterationRule {
|
|||
public int getMatchDegree(Replaceable text, int start, int limit,
|
||||
int cursor, Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
if (anteContext != null
|
||||
&& !regionMatches(text, start, limit, cursor - anteContext.length(),
|
||||
anteContext, variables, filter)) {
|
||||
return MISMATCH;
|
||||
}
|
||||
int len = getRegionMatchLength(text, start, limit, cursor,
|
||||
key, variables, filter);
|
||||
if (len < 0) {
|
||||
return MISMATCH;
|
||||
}
|
||||
if (len < key.length()) {
|
||||
return PARTIAL_MATCH;
|
||||
}
|
||||
if (postContext == null) {
|
||||
return FULL_MATCH;
|
||||
}
|
||||
len = getRegionMatchLength(text, start, limit,
|
||||
cursor + key.length(),
|
||||
postContext, variables, filter);
|
||||
return (len < 0) ? MISMATCH
|
||||
: ((len == postContext.length()) ? FULL_MATCH
|
||||
: PARTIAL_MATCH);
|
||||
int len = getRegionMatchLength(text, start, limit, cursor - anteContextLength,
|
||||
pattern, variables, filter);
|
||||
return len < anteContextLength ? MISMATCH :
|
||||
(len < pattern.length() ? PARTIAL_MATCH : FULL_MATCH);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -15,9 +15,12 @@ import java.util.*;
|
|||
* <p>Copyright © IBM Corporation 1999. All rights reserved.
|
||||
*
|
||||
* @author Alan Liu
|
||||
* @version $RCSfile: TransliterationRuleSet.java,v $ $Revision: 1.3 $ $Date: 1999/12/22 01:05:54 $
|
||||
* @version $RCSfile: TransliterationRuleSet.java,v $ $Revision: 1.4 $ $Date: 1999/12/22 01:40:54 $
|
||||
*
|
||||
* $Log: TransliterationRuleSet.java,v $
|
||||
* Revision 1.4 1999/12/22 01:40:54 Alan
|
||||
* Consolidate rule pattern anteContext, key, and postContext into one string.
|
||||
*
|
||||
* Revision 1.3 1999/12/22 01:05:54 Alan
|
||||
* Improve masking checking; turn it off by default, for better performance
|
||||
*
|
||||
|
|
@ -72,8 +75,6 @@ class TransliterationRuleSet {
|
|||
/**
|
||||
* Add a rule to this set. Rules are added in order, and order is
|
||||
* significant.
|
||||
*
|
||||
* <p>Once freeze() is called, this method must not be called.
|
||||
* @param rule the rule to add
|
||||
*/
|
||||
public void addRule(TransliterationRule rule) {
|
||||
|
|
@ -92,16 +93,6 @@ class TransliterationRuleSet {
|
|||
return (TransliterationRule) rules.elementAt(i);
|
||||
}
|
||||
|
||||
/**
|
||||
* Free up space. Once this method is called, the maskKey is
|
||||
* invalid.
|
||||
*/
|
||||
public void freeze() {
|
||||
for (int i=0; i<rules.size(); ++i) {
|
||||
((TransliterationRule) rules.elementAt(i)).freeze();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Attempt to find a matching rule at the specified point in the text. The
|
||||
* text being matched occupies a virtual buffer consisting of the contents
|
||||
|
|
|
|||
|
|
@ -181,9 +181,12 @@ import java.util.Vector;
|
|||
* <p>Copyright © IBM Corporation 1999. All rights reserved.
|
||||
*
|
||||
* @author Alan Liu
|
||||
* @version $RCSfile: RuleBasedTransliterator.java,v $ $Revision: 1.4 $ $Date: 1999/12/22 01:05:54 $
|
||||
* @version $RCSfile: RuleBasedTransliterator.java,v $ $Revision: 1.5 $ $Date: 1999/12/22 01:40:54 $
|
||||
*
|
||||
* $Log: RuleBasedTransliterator.java,v $
|
||||
* Revision 1.5 1999/12/22 01:40:54 Alan
|
||||
* Consolidate rule pattern anteContext, key, and postContext into one string.
|
||||
*
|
||||
* Revision 1.4 1999/12/22 01:05:54 Alan
|
||||
* Improve masking checking; turn it off by default, for better performance
|
||||
*
|
||||
|
|
@ -205,7 +208,7 @@ public class RuleBasedTransliterator extends Transliterator {
|
|||
|
||||
static final boolean DEBUG = false;
|
||||
|
||||
static final boolean CHECK_MASKING = false;
|
||||
static final boolean CHECK_MASKING = true;
|
||||
|
||||
private static final String COPYRIGHT =
|
||||
"\u00A9 IBM Corporation 1999. All rights reserved.";
|
||||
|
|
@ -654,8 +657,6 @@ public class RuleBasedTransliterator extends Transliterator {
|
|||
if (errors != null) {
|
||||
throw new IllegalArgumentException(errors.toString());
|
||||
}
|
||||
|
||||
data.ruleSet.freeze();
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -21,9 +21,12 @@ import java.util.Dictionary;
|
|||
* <p>Copyright © IBM Corporation 1999. All rights reserved.
|
||||
*
|
||||
* @author Alan Liu
|
||||
* @version $RCSfile: TransliterationRule.java,v $ $Revision: 1.3 $ $Date: 1999/12/22 01:05:54 $
|
||||
* @version $RCSfile: TransliterationRule.java,v $ $Revision: 1.4 $ $Date: 1999/12/22 01:40:54 $
|
||||
*
|
||||
* $Log: TransliterationRule.java,v $
|
||||
* Revision 1.4 1999/12/22 01:40:54 Alan
|
||||
* Consolidate rule pattern anteContext, key, and postContext into one string.
|
||||
*
|
||||
* Revision 1.3 1999/12/22 01:05:54 Alan
|
||||
* Improve masking checking; turn it off by default, for better performance
|
||||
*
|
||||
|
|
@ -59,9 +62,13 @@ class TransliterationRule {
|
|||
public static final int FULL_MATCH = 2;
|
||||
|
||||
/**
|
||||
* The string that must be matched.
|
||||
* The string that must be matched, consisting of the anteContext, key,
|
||||
* and postContext, concatenated together, in that order. Some components
|
||||
* may be empty (zero length).
|
||||
* @see anteContextLength
|
||||
* @see keyLength
|
||||
*/
|
||||
private String key;
|
||||
private String pattern;
|
||||
|
||||
/**
|
||||
* The string that is emitted if the key, anteContext, and postContext
|
||||
|
|
@ -70,18 +77,17 @@ class TransliterationRule {
|
|||
private String output;
|
||||
|
||||
/**
|
||||
* The string that must match before the key. Must not be the empty string.
|
||||
* May be null; if null, then there is no matching requirement before the
|
||||
* key.
|
||||
* The length of the string that must match before the key. If
|
||||
* zero, then there is no matching requirement before the key.
|
||||
* Substring [0,anteContextLength) of pattern is the anteContext.
|
||||
*/
|
||||
private String anteContext;
|
||||
private int anteContextLength;
|
||||
|
||||
/**
|
||||
* The string that must match after the key. Must not be the empty string.
|
||||
* May be null; if null, then there is no matching requirement after the
|
||||
* key.
|
||||
* The length of the key. Substring [anteContextLength,
|
||||
* anteContextLength + keyLength) is the key.
|
||||
*/
|
||||
private String postContext;
|
||||
private int keyLength;
|
||||
|
||||
/**
|
||||
* The position of the cursor after emitting the output string, from 0 to
|
||||
|
|
@ -90,12 +96,6 @@ class TransliterationRule {
|
|||
*/
|
||||
private int cursorPos;
|
||||
|
||||
/**
|
||||
* A string used to implement masks(). It is the concatenated anteContext,
|
||||
* key, and postContext. See freeze() method.
|
||||
*/
|
||||
private String maskKey;
|
||||
|
||||
private static final String COPYRIGHT =
|
||||
"\u00A9 IBM Corporation 1999. All rights reserved.";
|
||||
|
||||
|
|
@ -120,28 +120,15 @@ class TransliterationRule {
|
|||
public TransliterationRule(String key, String output,
|
||||
String anteContext, String postContext,
|
||||
int cursorPos) {
|
||||
this.key = key;
|
||||
keyLength = key.length();
|
||||
anteContextLength = (anteContext != null) ? anteContext.length() : 0;
|
||||
pattern = (anteContextLength > 0 ? (anteContext + key) : key) +
|
||||
(postContext != null ? postContext : "");
|
||||
this.output = output;
|
||||
this.anteContext = (anteContext != null && anteContext.length() > 0)
|
||||
? anteContext : null;
|
||||
this.postContext = (postContext != null && postContext.length() > 0)
|
||||
? postContext : null;
|
||||
this.cursorPos = cursorPos < 0 ? output.length() : cursorPos;
|
||||
if (this.cursorPos > output.length()) {
|
||||
throw new IllegalArgumentException("Illegal cursor position");
|
||||
}
|
||||
|
||||
/* The mask key is needed when we are adding individual rules to a rule
|
||||
* set, for performance. Here are the numbers: Without mask key, 13.0
|
||||
* seconds. With mask key, 6.2 seconds. However, once the rules have
|
||||
* been added to the set, then they can be discarded to free up space.
|
||||
* This is what the freeze() method does. After freeze() has been
|
||||
* called, the method masks() must NOT be called.
|
||||
*/
|
||||
maskKey = anteContext != null ? (anteContext + key) : key;
|
||||
if (postContext != null) {
|
||||
maskKey += postContext;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -149,15 +136,7 @@ class TransliterationRule {
|
|||
* @return the length of the match key.
|
||||
*/
|
||||
public int getKeyLength() {
|
||||
return key.length();
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the key.
|
||||
* @return the match key.
|
||||
*/
|
||||
public String getKey() {
|
||||
return key;
|
||||
return keyLength;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -182,7 +161,7 @@ class TransliterationRule {
|
|||
* <code>getMaximumContextLength()</code>.
|
||||
*/
|
||||
public int getAnteContextLength() {
|
||||
return anteContext == null ? 0 : anteContext.length();
|
||||
return anteContextLength;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -190,8 +169,6 @@ class TransliterationRule {
|
|||
* r1 matches any input string that r2 matches. If r1 masks r2 and r2 masks
|
||||
* r1 then r1 == r2. Examples: "a>x" masks "ab>y". "a>x" masks "a[b]>y".
|
||||
* "[c]a>x" masks "[dc]a>y".
|
||||
*
|
||||
* <p>This method must not be called after freeze() is called.
|
||||
*/
|
||||
public boolean masks(TransliterationRule r2) {
|
||||
/* Rule r1 masks rule r2 if the string formed of the
|
||||
|
|
@ -218,21 +195,12 @@ class TransliterationRule {
|
|||
* currently do not have. This can be added later.
|
||||
*/
|
||||
|
||||
// maskKey = anteContext + key + postContext
|
||||
int left = getAnteContextLength();
|
||||
int left2 = r2.getAnteContextLength();
|
||||
int right = maskKey.length() - left;
|
||||
int right2 = r2.maskKey.length() - left2;
|
||||
int left = anteContextLength;
|
||||
int left2 = r2.anteContextLength;
|
||||
int right = pattern.length() - left;
|
||||
int right2 = r2.pattern.length() - left2;
|
||||
return left <= left2 && right <= right2 &&
|
||||
r2.maskKey.substring(left2 - left).startsWith(maskKey);
|
||||
}
|
||||
|
||||
/**
|
||||
* Free up space. Once this method is called, masks() must NOT be called.
|
||||
* If it is called, an exception will be thrown.
|
||||
*/
|
||||
public void freeze() {
|
||||
maskKey = null;
|
||||
r2.pattern.substring(left2 - left).startsWith(pattern);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -241,13 +209,15 @@ class TransliterationRule {
|
|||
*/
|
||||
public String toString() {
|
||||
return getClass().getName() + '{'
|
||||
+ escape((anteContext != null ? ("[" + anteContext + ']') : "")
|
||||
+ key
|
||||
+ (postContext != null ? ("[" + postContext + ']') : "")
|
||||
+ escape(anteContextLength > 0 ? ("[" + pattern.substring(0, anteContextLength) +
|
||||
']') : "")
|
||||
+ pattern.substring(anteContextLength, anteContextLength + keyLength)
|
||||
+ (anteContextLength + keyLength < pattern.length() ?
|
||||
("[" + pattern.substring(anteContextLength + keyLength) + ']') : "")
|
||||
+ " -> "
|
||||
+ (cursorPos < output.length()
|
||||
? (output.substring(0, cursorPos) + '|' + output.substring(cursorPos))
|
||||
: output))
|
||||
: output)
|
||||
+ '}';
|
||||
}
|
||||
|
||||
|
|
@ -274,21 +244,14 @@ class TransliterationRule {
|
|||
* altered by this transliterator. If <tt>filter</tt> is
|
||||
* <tt>null</tt> then no filtering is applied.
|
||||
*/
|
||||
public boolean matches(String text, int start, int limit,
|
||||
StringBuffer result, int cursor,
|
||||
Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
return
|
||||
(anteContext == null
|
||||
|| regionMatches(text, start, limit, result,
|
||||
cursor - anteContext.length(),
|
||||
anteContext, variables, filter)) &&
|
||||
regionMatches(text, start, limit, result, cursor,
|
||||
key, variables, filter) &&
|
||||
(postContext == null
|
||||
|| regionMatches(text, start, limit, result,
|
||||
cursor + key.length(),
|
||||
postContext, variables, filter));
|
||||
public final boolean matches(String text, int start, int limit,
|
||||
StringBuffer result, int cursor,
|
||||
Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
// Match anteContext, key, and postContext
|
||||
return regionMatches(text, start, limit, result,
|
||||
cursor - anteContextLength,
|
||||
pattern, variables, filter);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -306,18 +269,13 @@ class TransliterationRule {
|
|||
* altered by this transliterator. If <tt>filter</tt> is
|
||||
* <tt>null</tt> then no filtering is applied.
|
||||
*/
|
||||
public boolean matches(Replaceable text, int start, int limit,
|
||||
int cursor, Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
return
|
||||
(anteContext == null
|
||||
|| regionMatches(text, start, limit, cursor - anteContext.length(),
|
||||
anteContext, variables, filter)) &&
|
||||
regionMatches(text, start, limit, cursor,
|
||||
key, variables, filter) &&
|
||||
(postContext == null
|
||||
|| regionMatches(text, start, limit, cursor + key.length(),
|
||||
postContext, variables, filter));
|
||||
public final boolean matches(Replaceable text, int start, int limit,
|
||||
int cursor, Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
// Match anteContext, key, and postContext
|
||||
return regionMatches(text, start, limit,
|
||||
cursor - anteContextLength,
|
||||
pattern, variables, filter);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -348,28 +306,10 @@ class TransliterationRule {
|
|||
public int getMatchDegree(Replaceable text, int start, int limit,
|
||||
int cursor, Dictionary variables,
|
||||
UnicodeFilter filter) {
|
||||
if (anteContext != null
|
||||
&& !regionMatches(text, start, limit, cursor - anteContext.length(),
|
||||
anteContext, variables, filter)) {
|
||||
return MISMATCH;
|
||||
}
|
||||
int len = getRegionMatchLength(text, start, limit, cursor,
|
||||
key, variables, filter);
|
||||
if (len < 0) {
|
||||
return MISMATCH;
|
||||
}
|
||||
if (len < key.length()) {
|
||||
return PARTIAL_MATCH;
|
||||
}
|
||||
if (postContext == null) {
|
||||
return FULL_MATCH;
|
||||
}
|
||||
len = getRegionMatchLength(text, start, limit,
|
||||
cursor + key.length(),
|
||||
postContext, variables, filter);
|
||||
return (len < 0) ? MISMATCH
|
||||
: ((len == postContext.length()) ? FULL_MATCH
|
||||
: PARTIAL_MATCH);
|
||||
int len = getRegionMatchLength(text, start, limit, cursor - anteContextLength,
|
||||
pattern, variables, filter);
|
||||
return len < anteContextLength ? MISMATCH :
|
||||
(len < pattern.length() ? PARTIAL_MATCH : FULL_MATCH);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -15,9 +15,12 @@ import java.util.*;
|
|||
* <p>Copyright © IBM Corporation 1999. All rights reserved.
|
||||
*
|
||||
* @author Alan Liu
|
||||
* @version $RCSfile: TransliterationRuleSet.java,v $ $Revision: 1.3 $ $Date: 1999/12/22 01:05:54 $
|
||||
* @version $RCSfile: TransliterationRuleSet.java,v $ $Revision: 1.4 $ $Date: 1999/12/22 01:40:54 $
|
||||
*
|
||||
* $Log: TransliterationRuleSet.java,v $
|
||||
* Revision 1.4 1999/12/22 01:40:54 Alan
|
||||
* Consolidate rule pattern anteContext, key, and postContext into one string.
|
||||
*
|
||||
* Revision 1.3 1999/12/22 01:05:54 Alan
|
||||
* Improve masking checking; turn it off by default, for better performance
|
||||
*
|
||||
|
|
@ -72,8 +75,6 @@ class TransliterationRuleSet {
|
|||
/**
|
||||
* Add a rule to this set. Rules are added in order, and order is
|
||||
* significant.
|
||||
*
|
||||
* <p>Once freeze() is called, this method must not be called.
|
||||
* @param rule the rule to add
|
||||
*/
|
||||
public void addRule(TransliterationRule rule) {
|
||||
|
|
@ -92,16 +93,6 @@ class TransliterationRuleSet {
|
|||
return (TransliterationRule) rules.elementAt(i);
|
||||
}
|
||||
|
||||
/**
|
||||
* Free up space. Once this method is called, the maskKey is
|
||||
* invalid.
|
||||
*/
|
||||
public void freeze() {
|
||||
for (int i=0; i<rules.size(); ++i) {
|
||||
((TransliterationRule) rules.elementAt(i)).freeze();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Attempt to find a matching rule at the specified point in the text. The
|
||||
* text being matched occupies a virtual buffer consisting of the contents
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue