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Diffstat (limited to 'src/modules/texts/ztext/ztext.cpp')
| -rw-r--r-- | src/modules/texts/ztext/ztext.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/modules/texts/ztext/ztext.cpp b/src/modules/texts/ztext/ztext.cpp new file mode 100644 index 0000000..b461d49 --- /dev/null +++ b/src/modules/texts/ztext/ztext.cpp @@ -0,0 +1,195 @@ +/****************************************************************************** + * ztext.cpp - code for class 'zText'- a module that reads compressed text + * files: ot and nt using indexs ??.vss + */ + + +#include <ctype.h> +#include <stdio.h> +#include <fcntl.h> +#include <sysdata.h> +#include <versekey.h> +#include <filemgr.h> + +#include <ztext.h> + +#include <regex.h> // GNU + + +SWORD_NAMESPACE_START + +/****************************************************************************** + * zText Constructor - Initializes data for instance of zText + * + * 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 + */ + +zText::zText(const char *ipath, const char *iname, const char *idesc, int iblockType, SWCompress *icomp, SWDisplay *idisp, SWTextEncoding enc, SWTextDirection dir, SWTextMarkup mark, const char* ilang) + : zVerse(ipath, FileMgr::RDWR, iblockType, icomp), SWText(iname, idesc, idisp, enc, dir, mark, ilang) { + blockType = iblockType; + lastWriteKey = 0; +} + + +/****************************************************************************** + * zText Destructor - Cleans up instance of zText + */ + +zText::~zText() +{ + flushCache(); + + if (lastWriteKey) + delete lastWriteKey; + +} + + +bool zText::isWritable() { return ((idxfp[0]->getFd() > 0) && ((idxfp[0]->mode & FileMgr::RDWR) == FileMgr::RDWR)); } + + +/****************************************************************************** + * zText::getRawEntry - Returns the current verse buffer + * + * RET: buffer with verse + */ + +SWBuf &zText::getRawEntryBuf() { + long start = 0; + unsigned short size = 0; + VerseKey &key = getVerseKey(); + + findOffset(key.Testament(), key.Index(), &start, &size); + entrySize = size; // support getEntrySize call + + entryBuf = ""; + zReadText(key.Testament(), start, size, entryBuf); + + rawFilter(entryBuf, &key); + +// if (!isUnicode()) + prepText(entryBuf); + + return entryBuf; +} + + +bool zText::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 zText::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.Index(), inbuf, len); + + lastWriteKey = (VerseKey *)key.clone(); // must delete +} + + +void zText::linkEntry(const SWKey *inkey) { + VerseKey &destkey = getVerseKey(); + const VerseKey *srckey = 0; + + // see if we have a VerseKey * or decendant + SWTRY { + srckey = (const VerseKey *) SWDYNAMIC_CAST(VerseKey, inkey); + } + SWCATCH ( ... ) { + } + // if we don't have a VerseKey * decendant, create our own + if (!srckey) + srckey = new VerseKey(inkey); + + doLinkEntry(destkey.Testament(), destkey.Index(), srckey->Index()); + + if (inkey != srckey) // free our key if we created a VerseKey + delete srckey; +} + + +/****************************************************************************** + * zFiles::deleteEntry - deletes this entry + * + */ + +void zText::deleteEntry() { + + VerseKey &key = getVerseKey(); + + doSetText(key.Testament(), key.Index(), ""); +} + + +/****************************************************************************** + * zText::increment - Increments module key a number of entries + * + * ENT: increment - Number of entries to jump forward + * + */ + +void zText::increment(int steps) { + long start; + unsigned short size; + VerseKey *tmpkey = &getVerseKey(); + + findOffset(tmpkey->Testament(), tmpkey->Index(), &start, &size); + + 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->Index(); + findOffset(tmpkey->Testament(), index, &start, &size); + + 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; +} + + + +SWORD_NAMESPACE_END |