| /* |
| ********************************************************************** |
| * Copyright (C) 1999-2000 IBM Corp. All rights reserved. |
| ********************************************************************** |
| * Date Name Description |
| * 12/1/99 rgillam Complete port from Java. |
| * 01/13/2000 helena Added UErrorCode to ctors. |
| ********************************************************************** |
| */ |
| |
| #include "ucmp8.h" |
| #include "dbbi_tbl.h" |
| #include "unicode/dbbi.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| //======================================================================= |
| // constructor |
| //======================================================================= |
| |
| DictionaryBasedBreakIteratorTables::DictionaryBasedBreakIteratorTables( |
| UDataMemory* tablesMemory, |
| const char* dictionaryFilename, |
| UErrorCode &status) |
| : RuleBasedBreakIteratorTables(tablesMemory), |
| dictionary(dictionaryFilename, status) |
| { |
| if(tablesMemory != 0) { |
| const void* tablesImage = udata_getMemory(tablesMemory); |
| if(tablesImage != 0) { |
| if (U_FAILURE(status)) return; |
| const int32_t* tablesIdx = (int32_t*) tablesImage; |
| const int8_t* dbbiImage = ((const int8_t*)tablesImage + tablesIdx[8]); |
| // we know the offset into the memory image where the DBBI stuff |
| // starts is stored in element 8 of the array. There should be |
| // a way for the RBBI constructor to give us this, but there's |
| // isn't a good one. |
| const int32_t* dbbiIdx = (const int32_t*)dbbiImage; |
| |
| categoryFlags = (int8_t*)((const int8_t*)dbbiImage + (int32_t)dbbiIdx[0]); |
| } |
| } |
| } |
| |
| //======================================================================= |
| // boilerplate |
| //======================================================================= |
| |
| /** |
| * Destructor |
| */ |
| DictionaryBasedBreakIteratorTables::~DictionaryBasedBreakIteratorTables() { |
| if (ownTables) |
| delete [] categoryFlags; |
| } |
| |
| int32_t |
| DictionaryBasedBreakIteratorTables::lookupCategory(UChar c, |
| BreakIterator* bi) const { |
| // this override of lookupCategory() exists only to keep track of whether we've |
| // passed over any dictionary characters. It calls the inherited lookupCategory() |
| // to do the real work, and then checks whether its return value is one of the |
| // categories represented in the dictionary. If it is, bump the dictionary- |
| // character count. |
| int32_t result = RuleBasedBreakIteratorTables::lookupCategory(c, bi); |
| if (result != RuleBasedBreakIterator::UBRK_IGNORE && categoryFlags[result]) { |
| ((DictionaryBasedBreakIterator*)bi)->bumpDictionaryCharCount(); |
| } |
| return result; |
| } |
| |
| U_NAMESPACE_END |
| |
| /* eof */ |
