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Merge "Remove suggestions when string contains a period"

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This commit is contained in:
Jean Chalard 2013-10-07 08:34:52 +00:00 committed by Android (Google) Code Review
commit 7da62bbe24
2 changed files with 43 additions and 13 deletions
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14
java/src/com/android/inputmethod/latin/spellcheck/AndroidSpellCheckerService.java
View File

@ -204,10 +204,20 @@ public final class AndroidSpellCheckerService extends SpellCheckerService
return AndroidSpellCheckerSessionFactory.newInstance(this);
}
public static SuggestionsInfo getNotInDictEmptySuggestions() {
return new SuggestionsInfo(0, EMPTY_STRING_ARRAY);
/**
* Returns an empty SuggestionsInfo with flags signaling the word is not in the dictionary.
* @param reportAsTypo whether this should include the flag LOOKS_LIKE_TYPO, for red underline.
* @return the empty SuggestionsInfo with the appropriate flags set.
*/
public static SuggestionsInfo getNotInDictEmptySuggestions(final boolean reportAsTypo) {
return new SuggestionsInfo(reportAsTypo ? SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO : 0,
EMPTY_STRING_ARRAY);
}
/**
* Returns an empty suggestionInfo with flags signaling the word is in the dictionary.
* @return the empty SuggestionsInfo with the appropriate flags set.
*/
public static SuggestionsInfo getInDictEmptySuggestions() {
return new SuggestionsInfo(SuggestionsInfo.RESULT_ATTR_IN_THE_DICTIONARY,
EMPTY_STRING_ARRAY);

42
java/src/com/android/inputmethod/latin/spellcheck/AndroidWordLevelSpellCheckerSession.java
View File

@ -161,6 +161,12 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
}
}
private static final int CHECKABILITY_CHECKABLE = 0;
private static final int CHECKABILITY_TOO_MANY_NON_LETTERS = 1;
private static final int CHECKABILITY_CONTAINS_PERIOD = 2;
private static final int CHECKABILITY_EMAIL_OR_URL = 3;
private static final int CHECKABILITY_FIRST_LETTER_UNCHECKABLE = 4;
private static final int CHECKABILITY_TOO_SHORT = 5;
/**
* Finds out whether a particular string should be filtered out of spell checking.
*
@ -171,10 +177,10 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
*
* @param text the string to evaluate.
* @param script the identifier for the script this spell checker recognizes
* @return true if we should filter this text out, false otherwise
* @return one of the FILTER_OUT_* constants above.
*/
private static boolean shouldFilterOut(final String text, final int script) {
if (TextUtils.isEmpty(text) || text.length() <= 1) return true;
private static int getCheckabilityInScript(final String text, final int script) {
if (TextUtils.isEmpty(text) || text.length() <= 1) return CHECKABILITY_TOO_SHORT;
// TODO: check if an equivalent processing can't be done more quickly with a
// compiled regexp.
@ -182,7 +188,7 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
final int firstCodePoint = text.codePointAt(0);
// Filter out words that don't start with a letter or an apostrophe
if (!isLetterCheckableByLanguage(firstCodePoint, script)
&& '\'' != firstCodePoint) return true;
&& '\'' != firstCodePoint) return CHECKABILITY_FIRST_LETTER_UNCHECKABLE;
// Filter contents
final int length = text.length();
@ -193,13 +199,21 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
// Any word containing a SLASH is probably either an ad-hoc combination of two
// words or a URI - in either case we don't want to spell check that
if (Constants.CODE_COMMERCIAL_AT == codePoint || Constants.CODE_SLASH == codePoint) {
return true;
return CHECKABILITY_EMAIL_OR_URL;
}
// If the string contains a period, native returns strange suggestions (it seems
// to return suggestions for everything up to the period only and to ignore the
// rest), so we suppress lookup if there is a period.
// TODO: investigate why native returns these suggestions and remove this code.
if (Constants.CODE_PERIOD == codePoint) {
return CHECKABILITY_CONTAINS_PERIOD;
}
if (isLetterCheckableByLanguage(codePoint, script)) ++letterCount;
}
// Guestimate heuristic: perform spell checking if at least 3/4 of the characters
// in this word are letters
return (letterCount * 4 < length * 3);
return (letterCount * 4 < length * 3)
? CHECKABILITY_TOO_MANY_NON_LETTERS : CHECKABILITY_CHECKABLE;
}
/**
@ -256,16 +270,20 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
cachedSuggestionsParams.mFlags, cachedSuggestionsParams.mSuggestions);
}
if (shouldFilterOut(inText, mScript)) {
final int checkability = getCheckabilityInScript(inText, mScript);
if (CHECKABILITY_CHECKABLE != checkability) {
DictAndKeyboard dictInfo = null;
try {
dictInfo = mDictionaryPool.pollWithDefaultTimeout();
if (!DictionaryPool.isAValidDictionary(dictInfo)) {
return AndroidSpellCheckerService.getNotInDictEmptySuggestions();
return AndroidSpellCheckerService.getNotInDictEmptySuggestions(
false /* reportAsTypo */);
}
return dictInfo.mDictionary.isValidWord(inText)
? AndroidSpellCheckerService.getInDictEmptySuggestions()
: AndroidSpellCheckerService.getNotInDictEmptySuggestions();
: AndroidSpellCheckerService.getNotInDictEmptySuggestions(
CHECKABILITY_CONTAINS_PERIOD == checkability
/* reportAsTypo */);
} finally {
if (null != dictInfo) {
if (!mDictionaryPool.offer(dictInfo)) {
@ -290,7 +308,8 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
try {
dictInfo = mDictionaryPool.pollWithDefaultTimeout();
if (!DictionaryPool.isAValidDictionary(dictInfo)) {
return AndroidSpellCheckerService.getNotInDictEmptySuggestions();
return AndroidSpellCheckerService.getNotInDictEmptySuggestions(
false /* reportAsTypo */);
}
final WordComposer composer = new WordComposer();
final int length = text.length();
@ -351,7 +370,8 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
throw e;
} else {
Log.e(TAG, "Exception while spellcheking", e);
return AndroidSpellCheckerService.getNotInDictEmptySuggestions();
return AndroidSpellCheckerService.getNotInDictEmptySuggestions(
false /* reportAsTypo */);
}
}
}