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 "lyxlex.h"
  15 #include "frontends/font_metrics.h"
  16 #include "frontends/LyXView.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, mouse_button::state)
 114 {
 115         bv->owner()->getDialogs()->showBibitem(this);
 116 }
 117
 118
 119 void InsetBibKey::edit(BufferView * bv, bool)
 120 {
 121         edit(bv, 0, 0, mouse_button::none);
 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;
 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(buffer->params.getLyXTextClass().name(),
 178                               "art")) {
 179                         if (buffer->params.sides == LyXTextClass::OneSide) {
 180                                 // oneside
 181                                 os << "\\clearpage";
 182                         } else {
 183                                 // twoside
 184                                 os << "\\cleardoublepage";
 185                         }
 186
 187                         // bookclass
 188                         os << "\\addcontentsline{toc}{chapter}{\\bibname}";
 189
 190                 } else {
 191                         // article class
 192                         os << "\\addcontentsline{toc}{section}{\\refname}";
 193                 }
 194         }
 195
 196         // database
 197         // If we generate in a temp dir, we might need to give an
 198         // absolute path there. This is a bit complicated since we can
 199         // have a comma-separated list of bibliographies
 200         string db_out;
 201         while (!adb.empty()) {
 202                 if (!buffer->niceFile &&
 203                     IsFileReadable(MakeAbsPath(adb, buffer->filePath())+".bib"))
 204                          adb = os::external_path(MakeAbsPath(adb, buffer->filePath()));
 205                 db_out += adb;
 206                 db_out += ',';
 207                 db_in= split(db_in, adb,',');
 208         }
 209         db_out = strip(db_out, ",");
 210         os   << "\\bibliography{" << db_out << "}\n";
 211         return 2;
 212 }
 213
 214
 215 vector<string> const InsetBibtex::getFiles(Buffer const & buffer) const
 216 {
 217         // Doesn't appear to be used (Angus, 31 July 2001)
 218         Path p(buffer.filePath());
 219
 220         vector<string> vec;
 221
 222         string tmp;
 223         string bibfiles = getContents();
 224         bibfiles = split(bibfiles, tmp, ',');
 225         while (!tmp.empty()) {
 226                 string file = findtexfile(ChangeExtension(tmp, "bib"), "bib");
 227                 lyxerr[Debug::LATEX] << "Bibfile: " << file << endl;
 228
 229                 // If we didn't find a matching file name just fail silently
 230                 if (!file.empty())
 231                         vec.push_back(file);
 232
 233                 // Get next file name
 234                 bibfiles = split(bibfiles, tmp, ',');
 235         }
 236
 237         return vec;
 238 }
 239
 240 // This method returns a comma separated list of Bibtex entries
 241 vector<pair<string, string> > const InsetBibtex::getKeys(Buffer const * buffer) const
 242 {
 243         vector<pair<string,string> > keys;
 244
 245         lyx::Assert(buffer);
 246         vector<string> const files = getFiles(*buffer);
 247         for (vector<string>::const_iterator it = files.begin();
 248              it != files.end(); ++ it) {
 249                 // This is a _very_ simple parser for Bibtex database
 250                 // files. All it does is to look for lines starting
 251                 // in @ and not being @preamble and @string entries.
 252                 // It does NOT do any syntax checking!
 253                 ifstream ifs(it->c_str());
 254                 string linebuf0;
 255                 while (getline(ifs, linebuf0)) {
 256                         string linebuf = frontStrip(strip(linebuf0));
 257                         if (linebuf.empty()) continue;
 258                         if (prefixIs(linebuf, "@")) {
 259                                 linebuf = subst(linebuf, '{', '(');
 260                                 string tmp;
 261                                 linebuf = split(linebuf, tmp, '(');
 262                                 tmp = ascii_lowercase(tmp);
 263                                 if (!prefixIs(tmp, "@string")
 264                                     && !prefixIs(tmp, "@preamble")) {
 265                                         linebuf = split(linebuf, tmp, ',');
 266                                         tmp = frontStrip(tmp);
 267                                         tmp = frontStrip(tmp,"\t");
 268                                         if (!tmp.empty()) {
 269                                                 keys.push_back(pair<string,string>(tmp,string()));
 270                                         }
 271                                 }
 272                         } else if (!keys.empty()) {
 273                                 keys.back().second += linebuf + "\n";
 274                         }
 275                 }
 276         }
 277         return keys;
 278 }
 279
 280
 281 void InsetBibtex::edit(BufferView * bv, int, int, mouse_button::state)
 282 {
 283         bv->owner()->getDialogs()->showBibtex(this);
 284 }
 285
 286
 287 void InsetBibtex::edit(BufferView * bv, bool)
 288 {
 289         edit(bv, 0, 0, mouse_button::none);
 290 }
 291
 292
 293 bool InsetBibtex::addDatabase(string const & db)
 294 {
 295         string contents(getContents());
 296         if (!contains(contents, db)) {
 297                 if (!contents.empty())
 298                         contents += ",";
 299                 setContents(contents + db);
 300                 return true;
 301         }
 302         return false;
 303 }
 304
 305
 306 bool InsetBibtex::delDatabase(string const & db)
 307 {
 308         if (contains(getContents(), db)) {
 309                 string bd = db;
 310                 int const n = tokenPos(getContents(), ',', bd);
 311                 if (n > 0) {
 312                         // Weird code, would someone care to explain this?(Lgb)
 313                         string tmp(", ");
 314                         tmp += bd;
 315                         setContents(subst(getContents(), tmp, ", "));
 316                 } else if (n == 0)
 317                         setContents(split(getContents(), bd, ','));
 318                 else
 319                         return false;
 320         }
 321         return true;
 322 }
 323
 324
 325 // ale070405 This function maybe shouldn't be here. We'll fix this at 0.13.
 326 int bibitemMaxWidth(BufferView * bv, LyXFont const & font)
 327 {
 328         int w = 0;
 329         // Ha, now we are mainly at 1.2.0 and it is still here (Jug)
 330         // Does look like a hack? It is! (but will change at 0.13)
 331         Paragraph * par = bv->buffer()->paragraph;
 332
 333         while (par) {
 334                 if (par->bibkey) {
 335                         int const wx = par->bibkey->width(bv, font);
 336                         if (wx > w) w = wx;
 337                 }
 338                 par = par->next();
 339         }
 340         return w;
 341 }
 342
 343
 344 // ale070405
 345 string const bibitemWidest(Buffer const * buffer)
 346 {
 347         int w = 0;
 348         // Does look like a hack? It is! (but will change at 0.13)
 349         Paragraph * par = buffer->paragraph;
 350         InsetBibKey * bkey = 0;
 351         LyXFont font;
 352
 353         while (par) {
 354                 if (par->bibkey) {
 355                         int const wx =
 356                                 font_metrics::width(par->bibkey->getBibLabel(),
 357                                                font);
 358                         if (wx > w) {
 359                                 w = wx;
 360                                 bkey = par->bibkey;
 361                         }
 362                 }
 363                 par = par->next();
 364         }
 365
 366         if (bkey && !bkey->getBibLabel().empty())
 367                 return bkey->getBibLabel();
 368
 369         return "99";
 370 }