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/******************************************************************************
*
* tei2mod.cpp - Utility to import documents encoded as TEI
*
* $Id: tei2mod.cpp 2978 2013-09-10 14:39:31Z scribe $
*
* Copyright 2008-2013 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.
*
*/
/******************************************************************************
* This program handles xml files of the form:
* <TEI.2>
* <text>
* <body>
* <entry key="xxx">...</entry>
* <entryFree key="yyy">...</entryFree>
* <superentry key="zzz">...</superentry>
* </body>
* </text>
* </TEI.2>
* The document is assumed to be well-formed and valid.
* Three kinds of entries are allowed,
* <entry> - a very restricted form of a dictionary entry.
* <entryFree> - a very unrestricted form of a dictionary entry.
* <superentry> - an entry which can have other entries.
* The value of the key attribute is used as the key for the entry in the module.
* Note, for a <superentry> only it's key becomes a SWORD key.
* Keys of entries internal to it are not used.
*
* The entries must be sorted according to an ASCII collation of their bytes.
* This should be the same for Latin-1 and for UTF-8
*
* Sword will allow for any tags, but only a few have any styling.
*
* author DM Smith
*/
#ifdef _MSC_VER
#pragma warning( disable: 4251 )
#endif
#include <string>
#include <vector>
#include <fstream>
#include <iostream>
#include <swbuf.h>
#include <utilxml.h>
#include <rawld.h>
#include <rawld4.h>
#include <zld.h>
#include <zipcomprs.h>
#include <lzsscomprs.h>
#include <stdio.h>
#include <cipherfil.h>
#ifdef _ICU_
#include <utf8nfc.h>
#include <latin1utf8.h>
#endif
#ifndef NO_SWORD_NAMESPACE
using namespace sword;
#endif
using namespace std;
#ifdef _ICU_
UTF8NFC *normalizer = 0;
int normalized = 0;
Latin1UTF8 converter;
int converted = 0;
#endif
#define DEBUG
SWLD *module = NULL;
SWKey *currentKey = NULL;
bool normalize = true;
SWBuf keyStr;
unsigned long entryCount = 0;
/**
* Determine whether the string contains a valid unicode sequence.
* The following table give the pattern of a valid UTF-8 character.
* Unicode Range 1st 2nd 3rd 4th
* U-00000000 - U-0000007F 0nnnnnnn
* U-00000080 - U-000007FF 110nnnnn 10nnnnnn
* U-00000800 - U-0000FFFF 1110nnnn 10nnnnnn 10nnnnnn
* U-00010000 - U-001FFFFF 11110nnn 10nnnnnn 10nnnnnn 10nnnnnn
* Note:
* 1. The latest UTF-8 RFC allows for a max of 4 bytes.
* Earlier allowed 6.
* 2. The number of bits of the leading byte before the first 0
* is the total number of bytes.
* 3. The "n" are the bits of the unicode codepoint.
* This routine does not check to see if the code point is in the range.
* It could.
*
* param txt the text to check
* return 1 if all high order characters form a valid unicode sequence
* -1 if there are no high order characters.
* Note: this is also a valid unicode sequence
* 0 if there are high order characters that do not form
* a valid unicode sequence
* author DM Smith
*/
int detectUTF8(const char *txt) {
unsigned int countUTF8 = 0;
int count = 0;
// Cast it to make masking and shifting easier
const unsigned char *p = (const unsigned char*) txt;
while (*p) {
// Is the high order bit set?
if (*p & 0x80) {
// Then count the number of high order bits that are set.
// This determines the number of following bytes
// that are a part of the unicode character
unsigned char i = *p;
for (count = 0; i & 0x80; count++) {
i <<= 1;
}
// Validate count:
// Count 0: bug in code that would cause core walking
// Count 1: is a pattern of 10nnnnnn,
// which does not signal the start of a unicode character
// Count 5 to 8: 111110nn, 1111110n and 11111110 and 11111111
// are not legal starts, either
if (count < 2 || count > 4) return 0;
// At this point we expect (count - 1) following characters
// of the pattern 10nnnnnn
while (--count && *++p) {
// The pattern of each following character must be: 10nnnnnn
// So, compare the top 2 bits.
if ((0xc0 & *p) != 0x80) return 0;
}
// Oops, we've run out of bytes too soon: Cannot be UTF-8
if (count) return 0;
// We have a valid UTF-8 character, so count it
countUTF8++;
}
// Advance to the next character to examine.
p++;
}
// At this point it is either UTF-8 or 7-bit ascii
return countUTF8 ? 1 : -1;
}
void normalizeInput(SWKey &key, SWBuf &text) {
#ifdef _ICU_
int utf8State = detectUTF8(text.c_str());
if (normalize) {
// Don't need to normalize text that is ASCII
// But assume other non-UTF-8 text is Latin1 (cp1252) and convert it to UTF-8
if (!utf8State) {
cout << "Warning: " << key << ": Converting to UTF-8 (" << text << ")" << endl;
converter.processText(text, (SWKey *)2); // note the hack of 2 to mimic a real key. TODO: remove all hacks
converted++;
// Prepare for double check. This probably can be removed.
// But for now we are running the check again.
// This is to determine whether we need to normalize output of the conversion.
utf8State = detectUTF8(text.c_str());
}
// Double check. This probably can be removed.
if (!utf8State) {
cout << "Error: " << key << ": Converting to UTF-8 (" << text << ")" << endl;
}
if (utf8State > 0) {
SWBuf before = text;
normalizer->processText(text, (SWKey *)2); // note the hack of 2 to mimic a real key. TODO: remove all hacks
if (before != text) {
normalized++;
}
}
}
#endif
}
void writeEntry(SWKey &key, SWBuf &text) {
#ifdef DEBUG
cout << "(" << entryCount << ") " << key << endl;
#endif
module->setKey(key);
normalizeInput(key, text);
module->setEntry(text);
}
void linkToEntry(const SWBuf &keyBuf, const SWBuf &linkBuf) {
SWKey tmpkey = linkBuf.c_str();
module->linkEntry(&tmpkey);
#ifdef DEBUG
cout << "(" << entryCount << ") " << "Linking: " << linkBuf << endl;
#endif
}
// Return true if the content was handled or is to be ignored.
// false if the what has been seen is to be accumulated and considered later.
bool handleToken(SWBuf &text, XMLTag *token) {
// The start token for the current entry;
static XMLTag startTag;
// Flags to indicate whether we are in a entry, entryFree or superentry
static bool inEntry = false;
static bool inEntryFree = false;
static bool inSuperEntry = false;
const char *tokenName = token->getName();
static const char *splitPtr, *splitPtr2 = NULL;
static char *splitBuffer = new char[4096];
static SWKey tmpKey;
//-- START TAG -------------------------------------------------------------------------
if (!token->isEndTag()) {
// If we are not in an "entry" and we see one, then enter it.
if (!inEntry && !inEntryFree && !inSuperEntry) {
inEntry = !strcmp(tokenName, "entry");
inEntryFree = !strcmp(tokenName, "entryFree");
inSuperEntry = !strcmp(tokenName, "superentry");
if (inEntry || inEntryFree || inSuperEntry) {
#ifdef DEBUG
cout << "Entering " << tokenName << endl;
#endif
startTag = *token;
text = "";
keyStr = token->getAttribute("n"); // P5 with linking and/or non-URI chars
if (!strlen(keyStr)) {
keyStr = token->getAttribute("sortKey"); // P5 otherwise
if (!strlen(keyStr)) {
keyStr = token->getAttribute("key"); // P4
}
}
return false; // make tag be part of the output
}
}
}
//-- EMPTY and END TAG ---------------------------------------------------------------------------------------------
else {
// ENTRY end
// If we see the end of an entry that we are in, then leave it
if ((inEntry && !strcmp(tokenName, "entry" )) ||
(inEntryFree && !strcmp(tokenName, "entryFree" )) ||
(inSuperEntry && !strcmp(tokenName, "superentry"))) {
#ifdef DEBUG
cout << "Leaving " << tokenName << endl;
#endif
// Only one is false coming into here,
// but all must be on leaving.
inEntry = false;
inEntryFree = false;
inSuperEntry = false;
text += token->toString();
entryCount++;
#ifdef DEBUG
cout << "keyStr: " << keyStr << endl;
#endif
splitPtr = strstr(keyStr, "|");
if (splitPtr) {
strncpy (splitBuffer, keyStr.c_str(), splitPtr - keyStr.c_str());
splitBuffer[splitPtr - keyStr.c_str()] = 0;
*currentKey = splitBuffer;
#ifdef DEBUG
cout << "splitBuffer: " << splitBuffer << endl;
cout << "currentKey: " << *currentKey << endl;
#endif
writeEntry(*currentKey, text);
#if 1
while (splitPtr) {
splitPtr += 1;
splitPtr2 = strstr(splitPtr, "|");
entryCount++;
if (splitPtr2) {
strncpy (splitBuffer, splitPtr, splitPtr2 - splitPtr);
splitBuffer[splitPtr2 - splitPtr] = 0;
#ifdef DEBUG
cout << "splitBuffer: " << splitBuffer << endl;
cout << "currentKey: " << *currentKey << endl;
#endif
linkToEntry(currentKey->getText(), splitBuffer);
splitPtr = splitPtr2;
}
else {
strcpy (splitBuffer, splitPtr);
#ifdef DEBUG
cout << "splitBuffer: " << splitBuffer << endl;
cout << "currentKey: " << *currentKey << endl;
#endif
linkToEntry(currentKey->getText(), splitBuffer);
splitPtr = 0;
}
}
#endif
}
else {
*currentKey = keyStr;
writeEntry(*currentKey, text);
}
// Since we consumed the text, clear it
// and tell the caller that the tag was consumed.
text = "";
return true;
}
}
return false;
}
void usage(const char *app, const char *error = 0) {
if (error) fprintf(stderr, "\n%s: %s\n", app, error);
fprintf(stderr, "TEI Lexicon/Dictionary/Daily Devotional/Glossary module creation tool for\n\tThe SWORD Project\n");
fprintf(stderr, "\nusage: %s <output/path> <teiDoc> [OPTIONS]\n", app);
fprintf(stderr, " -z\t\t\t use ZIP compression (default no compression)\n");
fprintf(stderr, " -Z\t\t\t use LZSS compression (default no compression)\n");
fprintf(stderr, " -s <2|4>\t\t max text size per entry(default 4):\n");
fprintf(stderr, " -c <cipher_key>\t encipher module using supplied key\n");
fprintf(stderr, "\t\t\t\t (default no enciphering)\n");
fprintf(stderr, " -N\t\t\t Do not convert UTF-8 or normalize UTF-8 to NFC\n");
fprintf(stderr, "\t\t\t\t (default is to convert to UTF-8, if needed,\n");
fprintf(stderr, "\t\t\t\t and then normalize to NFC. Note: all UTF-8\n");
fprintf(stderr, "\t\t\t\t texts should be normalized to NFC.)\n");
fprintf(stderr, "\n\tThe options -z, -Z, and -s are mutually exclusive.\n");
exit(-1);
}
int main(int argc, char **argv) {
#ifdef _ICU_
UTF8NFC normalizr;
normalizer = &normalizr;
#endif
SWBuf program = argv[0];
fprintf(stderr, "You are running %s: $Rev: 2138 $\n", argv[0]);
// Let's test our command line arguments
if (argc < 3) {
usage(*argv);
}
// variables for arguments, holding defaults
SWBuf path = argv[1];
SWBuf teiDoc = argv[2];
SWBuf compType = "";
SWBuf modDrv = "";
SWBuf recommendedPath = "./modules/lexdict/";
SWBuf cipherKey = "";
SWCompress *compressor = 0;
for (int i = 3; i < argc; i++) {
if (!strcmp(argv[i], "-z")) {
if (compType.size()) usage(*argv, "Cannot specify both -z and -Z");
if (modDrv.size()) usage(*argv, "Cannot specify both -z and -s");
compType = "ZIP";
modDrv = "zLD";
recommendedPath += "zld/";
}
else if (!strcmp(argv[i], "-Z")) {
if (compType.size()) usage(*argv, "Cannot specify both -z and -Z");
if (modDrv.size()) usage(*argv, "Cannot specify both -Z and -s");
compType = "LZSS";
recommendedPath += "zld/";
}
else if (!strcmp(argv[i], "-s")) {
if (compType.size()) usage(*argv, "Cannot specify both -s and -z or -Z");
if (i+1 < argc) {
int size = atoi(argv[++i]);
if (size == 2) {
modDrv = "RawLD";
recommendedPath += "rawld/";
continue;
}
if (size == 4) {
modDrv = "RawLD4";
recommendedPath += "rawld4/";
continue;
}
}
usage(*argv, "-s requires one of <2|4>");
}
else if (!strcmp(argv[i], "-N")) {
normalize = false;
}
else if (!strcmp(argv[i], "-c")) {
if (i+1 < argc) cipherKey = argv[++i];
else usage(*argv, "-c requires <cipher_key>");
}
else usage(*argv, (((SWBuf)"Unknown argument: ")+ argv[i]).c_str());
}
if (!modDrv.size()) {
modDrv = "RawLD4";
recommendedPath += "rawld4/";
}
#ifndef _ICU_
if (normalize) {
normalize = false;
cout << program << " is not compiled with support for ICU. Setting -N flag." << endl;
}
#endif
if (compType == "ZIP") {
#ifndef EXCLUDEZLIB
compressor = new ZipCompress();
#else
usage(*argv, "ERROR: SWORD library not compiled with ZIP compression support.\n\tBe sure libzip is available when compiling SWORD library");
#endif
}
else if (compType == "LZSS") {
compressor = new LZSSCompress();
}
#ifdef DEBUG
// cout << "path: " << path << " teiDoc: " << teiDoc << " compressType: " << compType << " ldType: " << modDrv << " cipherKey: " << cipherKey.c_str() << " normalize: " << normalize << "\n";
cout << "path: " << path << " teiDoc: " << teiDoc << " compressType: " << compType << " ldType: " << modDrv << " normalize: " << normalize << "\n";
cout << "";
// exit(-3);
#endif
SWBuf modName = path;
int pathlen = path.length();
char lastChar = path[pathlen - 1];
if (lastChar != '/' && lastChar != '\\') {
modName += "/";
}
modName += "dict";
SWBuf keyBuf;
SWBuf entBuf;
SWBuf lineBuf;
vector<string> linkBuf;
if (modDrv == "zLD") {
if (zLD::createModule(modName)) {
fprintf(stderr, "error: %s: couldn't create module at path: %s \n", program.c_str(), modName.c_str());
exit(-3);
}
module = new zLD(modName, 0, 0, 30, compressor);
}
else if (modDrv == "RawLD") {
if (RawLD::createModule(modName)) {
fprintf(stderr, "error: %s: couldn't create module at path: %s \n", program.c_str(), modName.c_str());
exit(-3);
}
module = new RawLD(modName);
}
else {
if (RawLD4::createModule(modName)) {
fprintf(stderr, "error: %s: couldn't create module at path: %s \n", program.c_str(), modName.c_str());
exit(-3);
}
module = new RawLD4(modName);
}
SWFilter *cipherFilter = 0;
if (cipherKey.size()) {
fprintf(stderr, "Adding cipher filter with phrase: %s\n", cipherKey.c_str() );
cipherFilter = new CipherFilter(cipherKey.c_str());
module->addRawFilter(cipherFilter);
}
if (!module->isWritable()) {
fprintf(stderr, "The module is not writable. Writing text to it will not work.\nExiting.\n" );
exit(-1);
}
// Let's see if we can open our input file
ifstream infile(teiDoc);
if (infile.fail()) {
fprintf(stderr, "error: %s: couldn't open input file: %s \n", program.c_str(), teiDoc.c_str());
exit(-2);
}
currentKey = module->createKey();
currentKey->setPersist(true);
module->setKey(*currentKey);
(*module) = TOP;
SWBuf token;
SWBuf text;
bool intoken = false;
char curChar = '\0';
while (infile.good()) {
curChar = infile.get();
// skip the character if it is bad. infile.good() will catch the problem
if (curChar == -1) {
continue;
}
if (!intoken && curChar == '<') {
intoken = true;
token = "<";
continue;
}
if (intoken && curChar == '>') {
intoken = false;
token.append('>');
XMLTag *t = new XMLTag(token.c_str());
if (!handleToken(text, t)) {
text.append(*t);
}
delete t;
continue;
}
if (intoken)
token.append(curChar);
else
switch (curChar) {
case '>' : text.append(">"); break;
case '<' : text.append("<"); break;
default : text.append(curChar); break;
}
}
// Force the last entry from the text buffer.
//text = "";
//writeEntry(*currentKey, text);
delete module;
delete currentKey;
if (cipherFilter)
delete cipherFilter;
infile.close();
#ifdef _ICU_
if (converted) fprintf(stderr, "tei2mod converted %d verses to UTF-8\n", converted);
if (normalized) fprintf(stderr, "tei2mod normalized %d verses to NFC\n", normalized);
#endif
/*
* Suggested module name detection.
* Only used for suggesting a conf.
*
* Various forms of path.
* . and .. - no module name given, use "dict".
* Or one of the following where z is the module name
* and x may be . or ..
* z
* x/y/z
* x/y/z/
* x/y/z/z
*/
SWBuf suggestedModuleName = path;
if (lastChar == '/' || lastChar == '\\') {
suggestedModuleName.setSize(--pathlen);
}
lastChar = suggestedModuleName[pathlen - 1];
if (lastChar == '.') {
suggestedModuleName = "???";
}
else {
/* At this point the suggestion is either
* what follows the last / or \
* or the entire string
*/
const char *m = strrchr(suggestedModuleName.c_str(), '/');
if (!m) {
m = strrchr(suggestedModuleName.c_str(), '\\');
}
if (m) {
suggestedModuleName = m+1;
}
}
recommendedPath += suggestedModuleName;
recommendedPath += "/dict";
fprintf(stderr, "\nSuggested conf (replace ??? with appropriate values)\n\n");
fprintf(stderr, "[%s]\n", suggestedModuleName.c_str());
fprintf(stderr, "DataPath=%s\n", recommendedPath.c_str());
fprintf(stderr, "Description=???\n");
fprintf(stderr, "SourceType=TEI\n");
fprintf(stderr, "Encoding=%s\n", (normalize ? "UTF-8" : "???"));
fprintf(stderr, "ModDrv=%s\n", modDrv.c_str());
if (compressor) {
fprintf(stderr, "CompressType=%s\n", compType.c_str());
}
if (cipherKey.size()) {
fprintf(stderr, "CipherKey=%s\n", cipherKey.c_str());
}
}
|
