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/******************************************************************************
* rawcom.cpp - code for class 'zCom'- a module that reads raw commentary
* files: ot and nt using indexs ??.bks ??.cps ??.vss
*
*
* Copyright 2009 CrossWire Bible Society (http://www.crosswire.org)
* CrossWire Bible Society
* P. O. Box 2528
* Tempe, AZ 85280-2528
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
*/
#include <ctype.h>
#include <stdio.h>
#include <fcntl.h>
#include <zverse.h>
#include <versekey.h>
#include <zcom.h>
#include <filemgr.h>
SWORD_NAMESPACE_START
/******************************************************************************
* zCom Constructor - Initializes data for instance of zCom
*
* ENT: ipath - path to data files
* iname - Internal name for module
* idesc - Name to display to user for module
* iblockType - verse, chapter, book, etc. of index chunks
* icomp - Compressor object
* idisp - Display object to use for displaying
*/
zCom::zCom(const char *ipath, const char *iname, const char *idesc, int iblockType, SWCompress *icomp, SWDisplay *idisp, SWTextEncoding enc, SWTextDirection dir, SWTextMarkup mark, const char *ilang, const char *versification) : zVerse(ipath, -1, iblockType, icomp), SWCom(iname, idesc, idisp, enc, dir, mark, ilang, versification)/*, SWCompress()*/
{
blockType = iblockType;
lastWriteKey = 0;
}
/******************************************************************************
* zCom Destructor - Cleans up instance of zCom
*/
zCom::~zCom() {
flushCache();
if (lastWriteKey)
delete lastWriteKey;
}
bool zCom::isWritable() {
return ((idxfp[0]->getFd() > 0) && ((idxfp[0]->mode & FileMgr::RDWR) == FileMgr::RDWR));
}
/******************************************************************************
* zCom::getRawEntry - Returns the correct verse when char * cast
* is requested
*
* RET: string buffer with verse
*/
SWBuf &zCom::getRawEntryBuf() {
long start = 0;
unsigned short size = 0;
unsigned long buffnum;
VerseKey *key = &getVerseKey();
findOffset(key->Testament(), key->TestamentIndex(), &start, &size, &buffnum);
entrySize = size; // support getEntrySize call
entryBuf = "";
zReadText(key->Testament(), start, size, buffnum, entryBuf);
rawFilter(entryBuf, key);
// if (!isUnicode())
prepText(entryBuf);
return entryBuf;
}
bool zCom::sameBlock(VerseKey *k1, VerseKey *k2) {
if (k1->Testament() != k2->Testament())
return false;
switch (blockType) {
case VERSEBLOCKS:
if (k1->Verse() != k2->Verse())
return false;
case CHAPTERBLOCKS:
if (k1->Chapter() != k2->Chapter())
return false;
case BOOKBLOCKS:
if (k1->Book() != k2->Book())
return false;
}
return true;
}
void zCom::setEntry(const char *inbuf, long len) {
VerseKey *key = &getVerseKey();
// see if we've jumped across blocks since last write
if (lastWriteKey) {
if (!sameBlock(lastWriteKey, key)) {
flushCache();
}
delete lastWriteKey;
}
doSetText(key->Testament(), key->TestamentIndex(), inbuf, len);
lastWriteKey = (VerseKey *)key->clone(); // must delete
}
void zCom::linkEntry(const SWKey *inkey) {
VerseKey *destkey = &getVerseKey();
const VerseKey *srckey = &getVerseKey(inkey);
doLinkEntry(destkey->Testament(), destkey->TestamentIndex(), srckey->TestamentIndex());
if (inkey != srckey) // free our key if we created a VerseKey
delete srckey;
}
/******************************************************************************
* zCom::deleteEntry - deletes this entry
*
* RET: *this
*/
void zCom::deleteEntry() {
VerseKey *key = &getVerseKey();
doSetText(key->Testament(), key->TestamentIndex(), "");
}
/******************************************************************************
* zCom::increment - Increments module key a number of entries
*
* ENT: increment - Number of entries to jump forward
*
* RET: *this
*/
void zCom::increment(int steps) {
long start;
unsigned short size;
unsigned long buffnum;
VerseKey *tmpkey = &getVerseKey();
findOffset(tmpkey->Testament(), tmpkey->TestamentIndex(), &start, &size, &buffnum);
SWKey lastgood = *tmpkey;
while (steps) {
long laststart = start;
unsigned short lastsize = size;
SWKey lasttry = *tmpkey;
(steps > 0) ? ++(*key) : --(*key);
tmpkey = &getVerseKey();
if ((error = key->Error())) {
*key = lastgood;
break;
}
long index = tmpkey->TestamentIndex();
findOffset(tmpkey->Testament(), index, &start, &size, &buffnum);
if (
(((laststart != start) || (lastsize != size)) // we're a different entry
// && (start > 0)
&& (size)) // and we actually have a size
||(!skipConsecutiveLinks)) { // or we don't want to skip consecutive links
steps += (steps < 0) ? 1 : -1;
lastgood = *tmpkey;
}
}
error = (error) ? KEYERR_OUTOFBOUNDS : 0;
}
bool zCom::isLinked(const SWKey *k1, const SWKey *k2) const {
long start1, start2;
unsigned short size1, size2;
unsigned long buffnum1, buffnum2;
VerseKey *vk1 = &getVerseKey(k1);
VerseKey *vk2 = &getVerseKey(k2);
if (vk1->Testament() != vk2->Testament()) return false;
findOffset(vk1->Testament(), vk1->TestamentIndex(), &start1, &size1, &buffnum1);
findOffset(vk2->Testament(), vk2->TestamentIndex(), &start2, &size2, &buffnum2);
return start1 == start2 && buffnum1 == buffnum2;
}
bool zCom::hasEntry(const SWKey *k) const {
long start;
unsigned short size;
unsigned long buffnum;
VerseKey *vk = &getVerseKey(k);
findOffset(vk->Testament(), vk->TestamentIndex(), &start, &size, &buffnum);
return size;
}
SWORD_NAMESPACE_END
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