src/insets/insetbib.C

   1 #include <config.h>
   2
   3 #ifdef __GNUG__
   4 #pragma implementation
   5 #endif
   6
   7 #include "insetbib.h"
   8 #include "buffer.h"
   9 #include "debug.h"
  10 #include "BufferView.h"
  11 #include "gettext.h"
  12 #include "lyxtext.h"
  13 #include "lyxrc.h"
  14 #include "font.h"
  15 #include "LyXView.h"
  16 #include "lyxtextclasslist.h"
  17
  18 #include "frontends/Dialogs.h"
  19
  20 #include "support/filetools.h"
  21 #include "support/path.h"
  22 #include "support/os.h"
  23 #include "support/lstrings.h"
  24 #include "support/LAssert.h"
  25
  26 #include <fstream>
  27 #include <cstdlib>
  28
  29 using std::ostream;
  30 using std::ifstream;
  31 using std::getline;
  32 using std::endl;
  33 using std::vector;
  34 using std::pair;
  35 using std::max;
  36
  37 int InsetBibKey::key_counter = 0;
  38 const string key_prefix = "key-";
  39
  40 InsetBibKey::InsetBibKey(InsetCommandParams const & p)
  41         : InsetCommand(p), counter(1)
  42 {
  43         if (getContents().empty())
  44                 setContents(key_prefix + tostr(++key_counter));
  45 }
  46
  47
  48 InsetBibKey::~InsetBibKey()
  49 {
  50 }
  51
  52
  53 Inset * InsetBibKey::clone(Buffer const &, bool) const
  54 {
  55         InsetBibKey * b = new InsetBibKey(params());
  56         b->setCounter(counter);
  57         return b;
  58 }
  59
  60
  61 void InsetBibKey::setCounter(int c)
  62 {
  63         counter = c;
  64 }
  65
  66
  67 // I'm sorry but this is still necessary because \bibitem is used also
  68 // as a LyX 2.x command, and lyxlex is not enough smart to understand
  69 // real LaTeX commands. Yes, that could be fixed, but would be a waste
  70 // of time cause LyX3 won't use lyxlex anyway.  (ale)
  71 void InsetBibKey::write(Buffer const *, ostream & os) const
  72 {
  73         os << "\\bibitem ";
  74         if (! getOptions().empty()) {
  75                 os << '['
  76                    << getOptions() << ']';
  77         }
  78         os << '{'
  79            << getContents() << "}\n";
  80 }
  81
  82
  83 // This is necessary here because this is written without begin_inset
  84 // This should be changed!!! (Jug)
  85 void InsetBibKey::read(Buffer const *, LyXLex & lex)
  86 {
  87         if (lex.eatLine()) {
  88                 string const token = lex.getString();
  89                 scanCommand(token);
  90         } else {
  91                 lex.printError("InsetCommand: Parse error: `$$Token'");
  92         }
  93
  94         if (prefixIs(getContents(), key_prefix)) {
  95                 int key = strToInt(getContents().substr(key_prefix.length()));
  96                 key_counter = max(key_counter, key);
  97         }
  98 }
  99
 100 string const InsetBibKey::getBibLabel() const
 101 {
 102         if (! getOptions().empty())
 103                 return getOptions();
 104         return tostr(counter);
 105 }
 106
 107 string const InsetBibKey::getScreenLabel(Buffer const *) const
 108 {
 109         return getContents() + " [" + getBibLabel() + "]";
 110 }
 111
 112
 113 void InsetBibKey::edit(BufferView * bv, int, int, unsigned int)
 114 {
 115         bv->owner()->getDialogs()->showBibitem(this);
 116 }
 117
 118
 119 void InsetBibKey::edit(BufferView * bv, bool)
 120 {
 121         edit(bv, 0, 0, 0);
 122 }
 123
 124
 125 InsetBibtex::InsetBibtex(InsetCommandParams const & p, bool)
 126         : InsetCommand(p)
 127 {}
 128
 129
 130 InsetBibtex::~InsetBibtex()
 131 {
 132 }
 133
 134
 135 string const InsetBibtex::getScreenLabel(Buffer const *) const
 136 {
 137         return _("BibTeX Generated References");
 138 }
 139
 140
 141 int InsetBibtex::latex(Buffer const * buffer, ostream & os,
 142                        bool /*fragile*/, bool/*fs*/) const
 143 {
 144         // changing the sequence of the commands
 145         // 1. \bibliographystyle{style}
 146         // 2. \addcontentsline{...} - if option bibtotoc set
 147         // 3. \bibliography{database}
 148         string adb, db_out;
 149         string db_in = getContents();
 150         db_in = split(db_in, adb, ',');
 151
 152         // Style-Options
 153         string style = getOptions(); // maybe empty! and with bibtotoc
 154         string bibtotoc;
 155         if (prefixIs(style,"bibtotoc")) {
 156                 bibtotoc = "bibtotoc";
 157                 if (contains(style,',')) {
 158                         style = split(style,bibtotoc,',');
 159                 }
 160         }
 161
 162         if (!buffer->niceFile
 163             && IsFileReadable(MakeAbsPath(style, buffer->filePath()) + ".bst")) {
 164                 style = MakeAbsPath(style, buffer->filePath());
 165         }
 166
 167         if (!style.empty()) { // we want no \biblio...{}
 168                 os << "\\bibliographystyle{" << style << "}\n";
 169         }
 170
 171         // bibtotoc-Option
 172         if (!bibtotoc.empty()) {
 173                 // maybe a problem when a textclass has no "art" as
 174                 // part of its name, because it's than book.
 175                 // For the "official" lyx-layouts it's no problem to support
 176                 // all well
 177                 if (!contains(textclasslist.NameOfClass(buffer->params.textclass),"art")) {
 178                         if (buffer->params.sides == LyXTextClass::OneSide) {
 179                                 // oneside
 180                                 os << "\\clearpage";
 181                         } else {
 182                                 // twoside
 183                                 os << "\\cleardoublepage";
 184                         }
 185
 186                         // bookclass
 187                         os << "\\addcontentsline{toc}{chapter}{\\bibname}";
 188
 189                 } else {
 190                         // article class
 191                         os << "\\addcontentsline{toc}{section}{\\refname}";
 192                 }
 193         }
 194
 195         // database
 196         // If we generate in a temp dir, we might need to give an
 197         // absolute path there. This is a bit complicated since we can
 198         // have a comma-separated list of bibliographies
 199         while (!adb.empty()) {
 200                 if (!buffer->niceFile &&
 201                     IsFileReadable(MakeAbsPath(adb, buffer->filePath())+".bib"))
 202                          adb = os::external_path(MakeAbsPath(adb, buffer->filePath()));
 203                 db_out += adb;
 204                 db_out += ',';
 205                 db_in= split(db_in, adb,',');
 206         }
 207         db_out = strip(db_out, ',');
 208         os   << "\\bibliography{" << db_out << "}\n";
 209         return 2;
 210 }
 211
 212
 213 vector<string> const InsetBibtex::getFiles(Buffer const & buffer) const
 214 {
 215         // Doesn't appear to be used (Angus, 31 July 2001)
 216         Path p(buffer.filePath());
 217
 218         vector<string> vec;
 219
 220         string tmp;
 221         string bibfiles = getContents();
 222         bibfiles = split(bibfiles, tmp, ',');
 223         while (!tmp.empty()) {
 224                 string file = findtexfile(ChangeExtension(tmp, "bib"), "bib");
 225                 lyxerr[Debug::LATEX] << "Bibfile: " << file << endl;
 226
 227                 // If we didn't find a matching file name just fail silently
 228                 if (!file.empty())
 229                         vec.push_back(file);
 230
 231                 // Get next file name
 232                 bibfiles = split(bibfiles, tmp, ',');
 233         }
 234
 235         return vec;
 236 }
 237
 238 // This method returns a comma separated list of Bibtex entries
 239 vector<pair<string, string> > const InsetBibtex::getKeys(Buffer const * buffer) const
 240 {
 241         vector<pair<string,string> > keys;
 242
 243         lyx::Assert(buffer);
 244         vector<string> const files = getFiles(*buffer);
 245         for (vector<string>::const_iterator it = files.begin();
 246              it != files.end(); ++ it) {
 247                 // This is a _very_ simple parser for Bibtex database
 248                 // files. All it does is to look for lines starting
 249                 // in @ and not being @preamble and @string entries.
 250                 // It does NOT do any syntax checking!
 251                 ifstream ifs(it->c_str());
 252                 string linebuf0;
 253                 while (getline(ifs, linebuf0)) {
 254                         string linebuf = frontStrip(strip(linebuf0));
 255                         if (linebuf.empty() ) continue;
 256                         if (prefixIs(linebuf, "@")) {
 257                                 linebuf = subst(linebuf, '{', '(');
 258                                 string tmp;
 259                                 linebuf = split(linebuf, tmp, '(');
 260                                 tmp = lowercase(tmp);
 261                                 if (!prefixIs(tmp, "@string")
 262                                     && !prefixIs(tmp, "@preamble")) {
 263                                         linebuf = split(linebuf, tmp, ',');
 264                                         tmp = frontStrip(tmp);
 265                                         if (!tmp.empty()) {
 266                                                 keys.push_back(pair<string,string>(tmp,string()));
 267                                         }
 268                                 }
 269                         } else if (!keys.empty()) {
 270                                 keys.back().second += linebuf + "\n";
 271                         }
 272                 }
 273         }
 274         return keys;
 275 }
 276
 277
 278 void InsetBibtex::edit(BufferView * bv, int, int, unsigned int)
 279 {
 280         bv->owner()->getDialogs()->showBibtex(this);
 281 }
 282
 283
 284 void InsetBibtex::edit(BufferView * bv, bool)
 285 {
 286         edit(bv, 0, 0, 0);
 287 }
 288
 289
 290 bool InsetBibtex::addDatabase(string const & db)
 291 {
 292         string contents(getContents());
 293         if (!contains(contents, db)) {
 294                 if (!contents.empty())
 295                         contents += ",";
 296                 setContents(contents + db);
 297                 return true;
 298         }
 299         return false;
 300 }
 301
 302
 303 bool InsetBibtex::delDatabase(string const & db)
 304 {
 305         if (contains(getContents(), db)) {
 306                 string bd = db;
 307                 int const n = tokenPos(getContents(), ',', bd);
 308                 if (n > 0) {
 309                         // Weird code, would someone care to explain this?(Lgb)
 310                         string tmp(", ");
 311                         tmp += bd;
 312                         setContents(subst(getContents(), tmp, ", "));
 313                 } else if (n == 0)
 314                         setContents(split(getContents(), bd, ','));
 315                 else
 316                         return false;
 317         }
 318         return true;
 319 }
 320
 321
 322 // ale070405 This function maybe shouldn't be here. We'll fix this at 0.13.
 323 int bibitemMaxWidth(BufferView * bv, LyXFont const & font)
 324 {
 325         int w = 0;
 326         // Ha, now we are mainly at 1.2.0 and it is still here (Jug)
 327         // Does look like a hack? It is! (but will change at 0.13)
 328         Paragraph * par = bv->buffer()->paragraph;
 329
 330         while (par) {
 331                 if (par->bibkey) {
 332                         int const wx = par->bibkey->width(bv, font);
 333                         if (wx > w) w = wx;
 334                 }
 335                 par = par->next();
 336         }
 337         return w;
 338 }
 339
 340
 341 // ale070405
 342 string const bibitemWidest(Buffer const * buffer)
 343 {
 344         int w = 0;
 345         // Does look like a hack? It is! (but will change at 0.13)
 346         Paragraph * par = buffer->paragraph;
 347         InsetBibKey * bkey = 0;
 348         LyXFont font;
 349
 350         while (par) {
 351                 if (par->bibkey) {
 352                         int const wx =
 353                                 lyxfont::width(par->bibkey->getBibLabel(),
 354                                                font);
 355                         if (wx > w) {
 356                                 w = wx;
 357                                 bkey = par->bibkey;
 358                         }
 359                 }
 360                 par = par->next();
 361         }
 362
 363         if (bkey && !bkey->getBibLabel().empty())
 364                 return bkey->getBibLabel();
 365
 366         return "99";
 367 }