From 38712ff27d8dccd9127cf85c94ee2c6fd91832b5 Mon Sep 17 00:00:00 2001 From: Yuichiro Hanada Date: Wed, 3 Oct 2012 17:37:52 +0900 Subject: [PATCH] Add updateParentAddresses. Change-Id: Iac210131b7c003ef363e1138bf22f777a37c6a89 --- .../latin/makedict/BinaryDictIOUtils.java | 76 +++++++++++++++++-- .../latin/makedict/BinaryDictInputOutput.java | 2 +- 2 files changed, 72 insertions(+), 6 deletions(-) diff --git a/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java b/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java index 7faad78c4..6210c923e 100644 --- a/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java +++ b/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java @@ -28,7 +28,6 @@ import java.io.IOException; import java.io.OutputStream; import java.util.ArrayList; import java.util.Iterator; -import java.util.List; import java.util.Map; import java.util.Stack; @@ -172,10 +171,7 @@ public final class BinaryDictIOUtils { if (wordPos >= wordLen) return FormatSpec.NOT_VALID_WORD; do { - int groupOffset = buffer.position() - header.mHeaderSize; final int charGroupCount = BinaryDictInputOutput.readCharGroupCount(buffer); - groupOffset += BinaryDictInputOutput.getGroupCountSize(charGroupCount); - boolean foundNextCharGroup = false; for (int i = 0; i < charGroupCount; ++i) { final int charGroupPos = buffer.position(); @@ -217,7 +213,6 @@ public final class BinaryDictIOUtils { buffer.position(currentInfo.mChildrenAddress); break; } - groupOffset = currentInfo.mEndAddress; } // If we found the next char group, it is under the file pointer. @@ -327,11 +322,82 @@ public final class BinaryDictIOUtils { throw new RuntimeException("this file format does not support parent addresses"); } final int flags = buffer.readUnsignedByte(); + if (BinaryDictInputOutput.isMovedGroup(flags, formatOptions)) { + // if the group is moved, the parent address is stored in the destination group. + // We are guaranteed to process the destination group later, so there is no need to + // update anything here. + buffer.position(originalPosition); + return; + } + if (DBG) { + MakedictLog.d("update parent address flags=" + flags + ", " + groupOriginAddress); + } final int parentOffset = newParentAddress - groupOriginAddress; writeSInt24ToBuffer(buffer, parentOffset); buffer.position(originalPosition); } + private static void skipCharGroup(final FusionDictionaryBufferInterface buffer, + final FormatOptions formatOptions) { + final int flags = buffer.readUnsignedByte(); + BinaryDictInputOutput.readParentAddress(buffer, formatOptions); + skipString(buffer, (flags & FormatSpec.FLAG_HAS_MULTIPLE_CHARS) != 0); + BinaryDictInputOutput.readChildrenAddress(buffer, flags, formatOptions); + if ((flags & FormatSpec.FLAG_IS_TERMINAL) != 0) buffer.readUnsignedByte(); + if ((flags & FormatSpec.FLAG_HAS_SHORTCUT_TARGETS) != 0) { + final int shortcutsSize = buffer.readUnsignedShort(); + buffer.position(buffer.position() + shortcutsSize + - FormatSpec.GROUP_SHORTCUT_LIST_SIZE_SIZE); + } + if ((flags & FormatSpec.FLAG_HAS_BIGRAMS) != 0) { + int bigramCount = 0; + while (bigramCount++ < FormatSpec.MAX_BIGRAMS_IN_A_GROUP) { + final int bigramFlags = buffer.readUnsignedByte(); + switch (bigramFlags & FormatSpec.MASK_ATTRIBUTE_ADDRESS_TYPE) { + case FormatSpec.FLAG_ATTRIBUTE_ADDRESS_TYPE_ONEBYTE: + buffer.readUnsignedByte(); + break; + case FormatSpec.FLAG_ATTRIBUTE_ADDRESS_TYPE_TWOBYTES: + buffer.readUnsignedShort(); + break; + case FormatSpec.FLAG_ATTRIBUTE_ADDRESS_TYPE_THREEBYTES: + buffer.readUnsignedInt24(); + break; + } + if ((bigramFlags & FormatSpec.FLAG_ATTRIBUTE_HAS_NEXT) == 0) break; + } + if (bigramCount >= FormatSpec.MAX_BIGRAMS_IN_A_GROUP) { + throw new RuntimeException("Too many bigrams in a group."); + } + } + } + + /** + * Update parent addresses in a Node that is referred to by nodeOriginAddress. + * + * @param buffer the buffer to be modified. + * @param nodeOriginAddress the address of a modified Node. + * @param newParentAddress the address to be written + * @param formatOptions file format options + */ + public static void updateParentAddresses(final FusionDictionaryBufferInterface buffer, + final int nodeOriginAddress, final int newParentAddress, + final FormatOptions formatOptions) { + final int originalPosition = buffer.position(); + buffer.position(nodeOriginAddress); + do { + final int count = BinaryDictInputOutput.readCharGroupCount(buffer); + for (int i = 0; i < count; ++i) { + updateParentAddress(buffer, buffer.position(), newParentAddress, formatOptions); + skipCharGroup(buffer, formatOptions); + } + final int forwardLinkAddress = buffer.readUnsignedInt24(); + buffer.position(forwardLinkAddress); + } while (formatOptions.mSupportsDynamicUpdate + && buffer.position() != FormatSpec.NO_FORWARD_LINK_ADDRESS); + buffer.position(originalPosition); + } + private static void skipString(final FusionDictionaryBufferInterface buffer, final boolean hasMultipleChars) { if (hasMultipleChars) { diff --git a/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java b/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java index b9fd15fa0..78171d03c 100644 --- a/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java +++ b/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java @@ -1209,7 +1209,7 @@ public final class BinaryDictInputOutput { } } - private static int readChildrenAddress(final FusionDictionaryBufferInterface buffer, + static int readChildrenAddress(final FusionDictionaryBufferInterface buffer, final int optionFlags, final FormatOptions options) { if (options.mSupportsDynamicUpdate) { final int address = buffer.readUnsignedInt24();