am 0dbae774: Merge "Avoid an NPE"
* commit '0dbae774969c4f467b9d51f621eca4c3a58a2717': Avoid an NPEmain
commit
0486b377e7
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@ -854,23 +854,22 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
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// The user has deleted this word and returned to the previous. Check that the word in the
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// logUnit matches the expected word. If so, restore the last log unit committed to be the
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// current logUnit. I.e., pull out the last LogUnit from all the LogBuffers, and make
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// restore it to mCurrentLogUnit so the new edits are captured with the word. Optionally
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// dump the contents of mCurrentLogUnit (useful if they contain deletions of the next word
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// that should not be reported to protect user privacy)
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// it the mCurrentLogUnit so the new edits are captured with the word. Optionally dump the
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// contents of mCurrentLogUnit (useful if they contain deletions of the next word that
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// should not be reported to protect user privacy)
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//
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// Note that we don't use mLastLogUnit here, because it only goes one word back and is only
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// needed for reverts, which only happen one back.
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final LogUnit oldLogUnit = mMainLogBuffer.peekLastLogUnit();
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// Check that expected word matches.
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// Check that expected word matches. It's ok if both strings are null, because this is the
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// case where the LogUnit is storing a non-word, e.g. a separator.
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if (oldLogUnit != null) {
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final String oldLogUnitWords = oldLogUnit.getWordsAsString();
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// Because the word is stored in the LogUnit with digits scrubbed, the comparison must
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// be made on a scrubbed version of the expectedWord as well.
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if (oldLogUnitWords != null && !oldLogUnitWords.equals(
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scrubDigitsFromString(expectedWord))) {
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return;
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}
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final String scrubbedExpectedWord = scrubDigitsFromString(expectedWord);
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final String oldLogUnitWords = oldLogUnit.getWordsAsString();
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if (!TextUtils.equals(scrubbedExpectedWord, oldLogUnitWords)) return;
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}
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// Uncommit, merging if necessary.
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@ -986,7 +985,8 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
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return Character.isDigit(codePoint) ? DIGIT_REPLACEMENT_CODEPOINT : codePoint;
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}
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/* package for test */ static String scrubDigitsFromString(String s) {
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/* package for test */ static String scrubDigitsFromString(final String s) {
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if (s == null) return null;
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StringBuilder sb = null;
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final int length = s.length();
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for (int i = 0; i < length; i = s.offsetByCodePoints(i, 1)) {
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