src/insets/insetbib.C

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