From 937d5ad0131267aa4273f3e5d75b203a1f263c18 Mon Sep 17 00:00:00 2001 From: Jae Yong Sung Date: Wed, 30 Jun 2010 20:28:04 -0700 Subject: added bigram prediction - after first character, only suggests bigram data (but doesn't autocomplete) - after second character, words from dictionary gets rearranged by using bigram - compatible with old dictionary - added preference option to disable bigram Change-Id: Ia8f4e8fa55e797e86d858fd499887cd396388411 --- java/src/com/android/inputmethod/latin/EditingUtil.java | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'java/src/com/android/inputmethod/latin/EditingUtil.java') diff --git a/java/src/com/android/inputmethod/latin/EditingUtil.java b/java/src/com/android/inputmethod/latin/EditingUtil.java index 7571f1daf..5133c60ca 100644 --- a/java/src/com/android/inputmethod/latin/EditingUtil.java +++ b/java/src/com/android/inputmethod/latin/EditingUtil.java @@ -16,6 +16,8 @@ package com.android.inputmethod.latin; +import java.util.regex.Pattern; + import android.view.inputmethod.ExtractedText; import android.view.inputmethod.ExtractedTextRequest; import android.view.inputmethod.InputConnection; @@ -24,6 +26,11 @@ import android.view.inputmethod.InputConnection; * Utility methods to deal with editing text through an InputConnection. */ public class EditingUtil { + /** + * Number of characters we want to look back in order to identify the previous word + */ + public static final int LOOKBACK_CHARACTER_NUM = 15; + private EditingUtil() {}; /** @@ -175,4 +182,13 @@ public class EditingUtil { private static boolean isWhitespace(int code, String whitespace) { return whitespace.contains(String.valueOf((char) code)); } + + private static final Pattern spaceRegex = Pattern.compile("\\s+"); + + public static CharSequence getPreviousWord(InputConnection connection) { + //TODO: Should fix this. This could be slow! + CharSequence prev = connection.getTextBeforeCursor(LOOKBACK_CHARACTER_NUM, 0); + String[] w = spaceRegex.split(prev); + return (w.length >= 2) ? w[w.length-2] : null; + } } -- cgit v1.2.3-83-g751a