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Fix wrong misspelling reports of fully capitalized words

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Two flavors of words would be wrongly reported as misspelled
by the android spell checker when they are written in all
upper case letters:
- Words containing a quote or a dash or any other non-letter
- Words that need the first letter to be capitalized

Bug: 7659216
Change-Id: Ibc5d261945ffcbb8a858d4c73b7c62cef6671abf
This commit is contained in:
Jean Chalard 2012-12-04 16:11:18 +09:00
parent 8918cb46f6
commit 95bfb8ac47
2 changed files with 48 additions and 15 deletions
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22
java/src/com/android/inputmethod/latin/spellcheck/AndroidSpellCheckerService.java
View File

@ -438,15 +438,23 @@ public final class AndroidSpellCheckerService extends SpellCheckerService
if (!Character.isUpperCase(text.codePointAt(0))) return CAPITALIZE_NONE;
final int len = text.length();
int capsCount = 1;
int letterCount = 1;
for (int i = 1; i < len; i = text.offsetByCodePoints(i, 1)) {
if (1 != capsCount && i != capsCount) break;
if (Character.isUpperCase(text.codePointAt(i))) ++capsCount;
if (1 != capsCount && letterCount != capsCount) break;
final int codePoint = text.codePointAt(i);
if (Character.isUpperCase(codePoint)) {
++capsCount;
++letterCount;
} else if (Character.isLetter(codePoint)) {
// We need to discount non-letters since they may not be upper-case, but may
// still be part of a word (e.g. single quote or dash, as in "IT'S" or "FULL-TIME")
++letterCount;
}
}
// We know the first char is upper case. So we want to test if either everything
// else is lower case, or if everything else is upper case. If the string is
// exactly one char long, then we will arrive here with capsCount 1, and this is
// correct, too.
// We know the first char is upper case. So we want to test if either every letter other
// than the first is lower case, or if they are all upper case. If the string is exactly
// one char long, then we will arrive here with letterCount 1, and this is correct, too.
if (1 == capsCount) return CAPITALIZE_FIRST;
return (len == capsCount ? CAPITALIZE_ALL : CAPITALIZE_NONE);
return (letterCount == capsCount ? CAPITALIZE_ALL : CAPITALIZE_NONE);
}
}

41
java/src/com/android/inputmethod/latin/spellcheck/AndroidWordLevelSpellCheckerSession.java
View File

@ -28,9 +28,11 @@ import android.view.textservice.TextInfo;
import com.android.inputmethod.compat.SuggestionsInfoCompatUtils;
import com.android.inputmethod.latin.Constants;
import com.android.inputmethod.latin.Dictionary;
import com.android.inputmethod.latin.LocaleUtils;
import com.android.inputmethod.latin.WordComposer;
import com.android.inputmethod.latin.StringUtils;
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
import com.android.inputmethod.latin.WordComposer;
import com.android.inputmethod.latin.spellcheck.AndroidSpellCheckerService.SuggestionsGatherer;
import java.util.ArrayList;
@ -188,6 +190,35 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
return (letterCount * 4 < length * 3);
}
/**
* Helper method to test valid capitalizations of a word.
*
* If the "text" is lower-case, we test only the exact string.
* If the "Text" is capitalized, we test the exact string "Text" and the lower-cased
* version of it "text".
* If the "TEXT" is fully upper case, we test the exact string "TEXT", the lower-cased
* version of it "text" and the capitalized version of it "Text".
*/
private boolean isInDictForAnyCapitalization(final Dictionary dict, final String text,
final int capitalizeType) {
// If the word is in there as is, then it's in the dictionary. If not, we'll test lower
// case versions, but only if the word is not already all-lower case or mixed case.
if (dict.isValidWord(text)) return true;
if (AndroidSpellCheckerService.CAPITALIZE_NONE == capitalizeType) return false;
// If we come here, we have a capitalized word (either First- or All-).
// Downcase the word and look it up again. If the word is only capitalized, we
// tested all possibilities, so if it's still negative we can return false.
final String lowerCaseText = text.toLowerCase(mLocale);
if (dict.isValidWord(lowerCaseText)) return true;
if (AndroidSpellCheckerService.CAPITALIZE_FIRST == capitalizeType) return false;
// If the lower case version is not in the dictionary, it's still possible
// that we have an all-caps version of a word that needs to be capitalized
// according to the dictionary. E.g. "GERMANS" only exists in the dictionary as "Germans".
return dict.isValidWord(StringUtils.toTitleCase(lowerCaseText, mLocale));
}
// Note : this must be reentrant
/**
* Gets a list of suggestions for a specific string. This returns a list of possible
@ -272,13 +303,7 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
suggestionsGatherer.addWord(suggestionStr.toCharArray(), null, 0,
suggestionStr.length(), suggestion.mScore);
}
isInDict = dictInfo.mDictionary.isValidWord(text);
if (!isInDict && AndroidSpellCheckerService.CAPITALIZE_NONE != capitalizeType) {
// We want to test the word again if it's all caps or first caps only.
// If it's fully down, we already tested it, if it's mixed case, we don't
// want to test a lowercase version of it.
isInDict = dictInfo.mDictionary.isValidWord(text.toLowerCase(mLocale));
}
isInDict = isInDictForAnyCapitalization(dictInfo.mDictionary, text, capitalizeType);
} finally {
if (null != dictInfo) {
if (!mDictionaryPool.offer(dictInfo)) {