2 files changed, 43 insertions, 4 deletions

diff --git a/java/src/com/android/inputmethod/latin/utils/StringUtils.java b/java/src/com/android/inputmethod/latin/utils/StringUtils.java
index 38f0b3fee..1781924ac 100644
--- a/java/src/com/android/inputmethod/latin/utils/StringUtils.java
+++ b/java/src/com/android/inputmethod/latin/utils/StringUtils.java
@@ -37,6 +37,14 @@ public final class StringUtils {
 
     private static final String EMPTY_STRING = "";
 
+    private static final char CHAR_LINE_FEED = 0X000A;
+    private static final char CHAR_VERTICAL_TAB = 0X000B;
+    private static final char CHAR_FORM_FEED = 0X000C;
+    private static final char CHAR_CARRIAGE_RETURN = 0X000D;
+    private static final char CHAR_NEXT_LINE = 0X0085;
+    private static final char CHAR_LINE_SEPARATOR = 0X2028;
+    private static final char CHAR_PARAGRAPH_SEPARATOR = 0X2029;
+
     private StringUtils() {
         // This utility class is not publicly instantiable.
     }
@@ -594,4 +602,30 @@ public final class StringUtils {
             return sb + "]";
         }
     }
+
+    /**
+     * Returns whether the last composed word contains line-breaking character (e.g. CR or LF).
+     * @param text the text to be examined.
+     * @return {@code true} if the last composed word contains line-breaking separator.
+     */
+    @UsedForTesting
+    public static boolean hasLineBreakCharacter(final String text) {
+        if (TextUtils.isEmpty(text)) {
+            return false;
+        }
+        for (int i = text.length() - 1; i >= 0; --i) {
+            final char c = text.charAt(i);
+            switch (c) {
+                case CHAR_LINE_FEED:
+                case CHAR_VERTICAL_TAB:
+                case CHAR_FORM_FEED:
+                case CHAR_CARRIAGE_RETURN:
+                case CHAR_NEXT_LINE:
+                case CHAR_LINE_SEPARATOR:
+                case CHAR_PARAGRAPH_SEPARATOR:
+                    return true;
+            }
+        }
+        return false;
+    }
 }
diff --git a/java/src/com/android/inputmethod/latin/utils/SuggestionResults.java b/java/src/com/android/inputmethod/latin/utils/SuggestionResults.java
index 7170bd789..8cd49509f 100644
--- a/java/src/com/android/inputmethod/latin/utils/SuggestionResults.java
+++ b/java/src/com/android/inputmethod/latin/utils/SuggestionResults.java
@@ -32,14 +32,18 @@ import java.util.TreeSet;
 public final class SuggestionResults extends TreeSet<SuggestedWordInfo> {
     public final Locale mLocale;
     public final ArrayList<SuggestedWordInfo> mRawSuggestions;
+    // TODO: Instead of a boolean , we may want to include the context of this suggestion results,
+    // such as {@link PrevWordsInfo}.
+    public final boolean mIsBeginningOfSentence;
     private final int mCapacity;
 
-    public SuggestionResults(final Locale locale, final int capacity) {
-        this(locale, sSuggestedWordInfoComparator, capacity);
+    public SuggestionResults(final Locale locale, final int capacity,
+            final boolean isBeginningOfSentence) {
+        this(locale, sSuggestedWordInfoComparator, capacity, isBeginningOfSentence);
     }
 
-    public SuggestionResults(final Locale locale, final Comparator<SuggestedWordInfo> comparator,
-            final int capacity) {
+    private SuggestionResults(final Locale locale, final Comparator<SuggestedWordInfo> comparator,
+            final int capacity, final boolean isBeginningOfSentence) {
         super(comparator);
         mLocale = locale;
         mCapacity = capacity;
@@ -48,6 +52,7 @@ public final class SuggestionResults extends TreeSet<SuggestedWordInfo> {
         } else {
             mRawSuggestions = null;
         }
+        mIsBeginningOfSentence = isBeginningOfSentence;
     }
 
     @Override