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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.latin.settings;
import android.content.res.Resources;
import com.android.inputmethod.keyboard.internal.KeySpecParser;
import com.android.inputmethod.latin.Constants;
import com.android.inputmethod.latin.Dictionary;
import com.android.inputmethod.latin.R;
import com.android.inputmethod.latin.SuggestedWords;
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
import com.android.inputmethod.latin.utils.CollectionUtils;
import com.android.inputmethod.latin.utils.StringUtils;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Locale;
public final class SpacingAndPunctuations {
private final int[] mSortedSymbolsPrecededBySpace;
private final int[] mSortedSymbolsFollowedBySpace;
private final int[] mSortedWordConnectors;
public final SuggestedWords mSuggestPuncList;
public final String mWordSeparators;
private final int mSentenceSeparator;
public final String mSentenceSeparatorAndSpace;
public final boolean mCurrentLanguageHasSpaces;
public final boolean mUsesAmericanTypography;
public final boolean mUsesGermanRules;
public SpacingAndPunctuations(final Resources res) {
// To be able to binary search the code point. See {@link #isUsuallyPrecededBySpace(int)}.
mSortedSymbolsPrecededBySpace = StringUtils.toSortedCodePointArray(
res.getString(R.string.symbols_preceded_by_space));
// To be able to binary search the code point. See {@link #isUsuallyFollowedBySpace(int)}.
mSortedSymbolsFollowedBySpace = StringUtils.toSortedCodePointArray(
res.getString(R.string.symbols_followed_by_space));
// To be able to binary search the code point. See {@link #isWordConnector(int)}.
mSortedWordConnectors = StringUtils.toSortedCodePointArray(
res.getString(R.string.symbols_word_connectors));
final String[] suggestPuncsSpec = KeySpecParser.splitKeySpecs(res.getString(
R.string.suggested_punctuations));
mSuggestPuncList = createSuggestPuncList(suggestPuncsSpec);
mWordSeparators = res.getString(R.string.symbols_word_separators);
mSentenceSeparator = res.getInteger(R.integer.sentence_separator);
mSentenceSeparatorAndSpace = new String(new int[] {
mSentenceSeparator, Constants.CODE_SPACE }, 0, 2);
mCurrentLanguageHasSpaces = res.getBoolean(R.bool.current_language_has_spaces);
final Locale locale = res.getConfiguration().locale;
// Heuristic: we use American Typography rules because it's the most common rules for all
// English variants. German rules (not "German typography") also have small gotchas.
mUsesAmericanTypography = Locale.ENGLISH.getLanguage().equals(locale.getLanguage());
mUsesGermanRules = Locale.GERMAN.getLanguage().equals(locale.getLanguage());
}
// Helper functions to create member values.
private static SuggestedWords createSuggestPuncList(final String[] puncs) {
final ArrayList<SuggestedWordInfo> puncList = CollectionUtils.newArrayList();
if (puncs != null) {
for (final String puncSpec : puncs) {
// TODO: Stop using KeySpceParser.getLabel().
// TODO: Punctuation suggestions should honor RTL languages.
puncList.add(new SuggestedWordInfo(KeySpecParser.getLabel(puncSpec),
SuggestedWordInfo.MAX_SCORE, SuggestedWordInfo.KIND_HARDCODED,
Dictionary.DICTIONARY_HARDCODED,
SuggestedWordInfo.NOT_AN_INDEX /* indexOfTouchPointOfSecondWord */,
SuggestedWordInfo.NOT_A_CONFIDENCE /* autoCommitFirstWordConfidence */));
}
}
return new SuggestedWords(puncList,
false /* typedWordValid */,
false /* hasAutoCorrectionCandidate */,
true /* isPunctuationSuggestions */,
false /* isObsoleteSuggestions */,
false /* isPrediction */);
}
public boolean isWordSeparator(final int code) {
return mWordSeparators.contains(String.valueOf((char)code));
}
public boolean isWordConnector(final int code) {
return Arrays.binarySearch(mSortedWordConnectors, code) >= 0;
}
public boolean isWordCodePoint(final int code) {
return Character.isLetter(code) || isWordConnector(code);
}
public boolean isUsuallyPrecededBySpace(final int code) {
return Arrays.binarySearch(mSortedSymbolsPrecededBySpace, code) >= 0;
}
public boolean isUsuallyFollowedBySpace(final int code) {
return Arrays.binarySearch(mSortedSymbolsFollowedBySpace, code) >= 0;
}
public boolean isSentenceSeparator(final int code) {
return code == mSentenceSeparator;
}
}
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