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 FORMS_H_LOCATION
  11 #include "frontends/Dialogs.h"
  12 #include "insetbib.h"
  13 #include "buffer.h"
  14 #include "debug.h"
  15 #include "BufferView.h"
  16 #include "gettext.h"
  17 #include "lyxtext.h"
  18 #include "support/filetools.h"
  19 #include "support/path.h"
  20 #include "support/os.h"
  21 #include "lyxrc.h"
  22 #include "font.h"
  23 #include "LyXView.h"
  24
  25 using std::ostream;
  26 using std::ifstream;
  27 using std::getline;
  28 using std::endl;
  29 using std::vector;
  30 using std::pair;
  31 using std::max;
  32
  33 int InsetBibKey::key_counter = 0;
  34 const string key_prefix = "key-";
  35
  36 InsetBibKey::InsetBibKey(InsetCommandParams const & p)
  37         : InsetCommand(p)
  38 {
  39         counter = 1;
  40         if (getContents().empty())
  41                 setContents(key_prefix + tostr(++key_counter));
  42 }
  43
  44
  45 InsetBibKey::~InsetBibKey()
  46 {
  47 }
  48
  49
  50 Inset * InsetBibKey::Clone(Buffer const &) const
  51 {
  52         InsetBibKey * b = new InsetBibKey(params());
  53         b->setCounter(counter);
  54         return b;
  55 }
  56
  57
  58 void InsetBibKey::setCounter(int c)
  59 {
  60         counter = c;
  61 }
  62
  63
  64 // I'm sorry but this is still necessary because \bibitem is used also
  65 // as a LyX 2.x command, and lyxlex is not enough smart to understand
  66 // real LaTeX commands. Yes, that could be fixed, but would be a waste
  67 // of time cause LyX3 won't use lyxlex anyway.  (ale)
  68 void InsetBibKey::Write(Buffer const *, ostream & os) const
  69 {
  70         os << "\\bibitem ";
  71         if (! getOptions().empty()) {
  72                 os << '['
  73                    << getOptions() << ']';
  74         }
  75         os << '{'
  76            << getContents() << "}\n";
  77 }
  78
  79
  80 // This is necessary here because this is written without begin_inset
  81 // This should be changed!!! (Jug)
  82 void InsetBibKey::Read(Buffer const *, LyXLex & lex)
  83 {
  84         string token;
  85
  86         if (lex.EatLine()) {
  87                 token = lex.GetString();
  88                 scanCommand(token);
  89         } else
  90                 lex.printError("InsetCommand: Parse error: `$$Token'");
  91
  92         if (prefixIs(getContents(), key_prefix)) {
  93                 int key = strToInt(getContents().substr(key_prefix.length()));
  94                 key_counter = max(key_counter, key);
  95         }
  96 }
  97
  98 string const InsetBibKey::getBibLabel() const
  99 {
 100         if (! getOptions().empty())
 101                 return getOptions();
 102         return tostr(counter);
 103 }
 104
 105 string const InsetBibKey::getScreenLabel() const
 106 {
 107         return getContents() + " [" + getBibLabel() + "]";
 108 }
 109
 110
 111 void InsetBibKey::Edit(BufferView * bv, int, int, unsigned int)
 112 {
 113         bv->owner()->getDialogs()->showBibitem(this);
 114 }
 115
 116
 117 InsetBibtex::InsetBibtex(InsetCommandParams const & p)
 118         : InsetCommand(p)
 119 {}
 120
 121
 122 InsetBibtex::~InsetBibtex()
 123 {
 124 }
 125
 126
 127 string const InsetBibtex::getScreenLabel() const
 128 {
 129         return _("BibTeX Generated References");
 130 }
 131
 132
 133 int InsetBibtex::Latex(Buffer const * buffer, ostream & os,
 134                        bool /*fragile*/, bool/*fs*/) const
 135 {
 136         // If we generate in a temp dir, we might need to give an
 137         // absolute path there. This is a bit complicated since we can
 138         // have a comma-separated list of bibliographies
 139         string adb, db_out;
 140         string db_in = getContents();
 141         db_in = split(db_in, adb, ',');
 142         while(!adb.empty()) {
 143                 if (!buffer->niceFile &&
 144                     IsFileReadable(MakeAbsPath(adb, buffer->filepath)+".bib"))
 145                          adb = os::external_path(MakeAbsPath(adb, buffer->filepath));
 146
 147                 db_out += adb;
 148                 db_out += ',';
 149                 db_in= split(db_in, adb,',');
 150         }
 151         db_out = strip(db_out, ',');
 152         // Idem, but simpler
 153         string style;
 154         if (!buffer->niceFile
 155             && IsFileReadable(MakeAbsPath(getOptions(), buffer->filepath)
 156                               + ".bst"))
 157                 style = MakeAbsPath(getOptions(), buffer->filepath);
 158         else
 159                 style = getOptions();
 160
 161         os << "\\bibliographystyle{" << style << "}\n"
 162            << "\\bibliography{" << db_out << "}\n";
 163         return 2;
 164 }
 165
 166
 167 // This method returns a comma separated list of Bibtex entries
 168 vector<pair<string, string> > const InsetBibtex::getKeys(Buffer const * buffer) const
 169 {
 170         Path p(buffer->filepath);
 171
 172         vector<pair<string,string> > keys;
 173         string tmp;
 174         string bibfiles = getContents();
 175         bibfiles = split(bibfiles, tmp, ',');
 176         while(!tmp.empty()) {
 177                 string fil = findtexfile(ChangeExtension(tmp, "bib"),
 178                                          "bib");
 179                 lyxerr[Debug::LATEX] << "Bibfile: " << fil << endl;
 180                 // If we didn't find a matching file name just fail silently
 181                 if (!fil.empty()) {
 182                         // This is a _very_ simple parser for Bibtex database
 183                         // files. All it does is to look for lines starting
 184                         // in @ and not being @preamble and @string entries.
 185                         // It does NOT do any syntax checking!
 186                         ifstream ifs(fil.c_str());
 187                         string linebuf0;
 188                         while (getline(ifs, linebuf0)) {
 189                                 string linebuf = frontStrip(strip(linebuf0));
 190                                 if (linebuf.empty() ) continue;
 191                                 if (prefixIs(linebuf, "@")) {
 192                                         linebuf = subst(linebuf, '{', '(');
 193                                         linebuf = split(linebuf, tmp, '(');
 194                                         tmp = lowercase(tmp);
 195                                         if (!prefixIs(tmp, "@string")
 196                                             && !prefixIs(tmp, "@preamble")) {
 197                                                 linebuf = split(linebuf, tmp, ',');
 198                                                 tmp = frontStrip(tmp);
 199                                                 if (!tmp.empty()) {
 200                                                         keys.push_back(pair<string,string>(tmp,string()));
 201                                                 }
 202                                         }
 203                                 } else if (!keys.empty()) {
 204                                         keys.back().second += linebuf + "\n";
 205                                 }
 206                         }
 207                 }
 208                 // Get next file name
 209                 bibfiles = split(bibfiles, tmp, ',');
 210         }
 211         return keys;
 212 }
 213
 214
 215 void InsetBibtex::Edit(BufferView * bv, int, int, unsigned int)
 216 {
 217         bv->owner()->getDialogs()->showBibtex(this);
 218 }
 219
 220
 221 bool InsetBibtex::addDatabase(string const & db)
 222 {
 223         string contents(getContents());
 224         if (!contains(contents, db)) {
 225                 if (!contents.empty())
 226                         contents += ",";
 227                 setContents(contents + db);
 228                 return true;
 229         }
 230         return false;
 231 }
 232
 233
 234 bool InsetBibtex::delDatabase(string const & db)
 235 {
 236         if (contains(getContents(), db)) {
 237                 string bd = db;
 238                 int const n = tokenPos(getContents(), ',', bd);
 239                 if (n > 0) {
 240                         // Weird code, would someone care to explain this?(Lgb)
 241                         string tmp(", ");
 242                         tmp += bd;
 243                         setContents(subst(getContents(), tmp, ", "));
 244                 } else if (n == 0)
 245                         setContents(split(getContents(), bd, ','));
 246                 else
 247                         return false;
 248         }
 249         return true;
 250 }
 251
 252
 253 // ale070405 This function maybe shouldn't be here. We'll fix this at 0.13.
 254 int bibitemMaxWidth(BufferView * bv, LyXFont const & font)
 255 {
 256         int w = 0;
 257         // Does look like a hack? It is! (but will change at 0.13)
 258         LyXParagraph * par = bv->buffer()->paragraph;
 259
 260         while (par) {
 261                 if (par->bibkey) {
 262                         int const wx = par->bibkey->width(bv, font);
 263                         if (wx > w) w = wx;
 264                 }
 265                 par = par->next();
 266         }
 267         return w;
 268 }
 269
 270
 271 // ale070405
 272 string const bibitemWidest(Buffer const * buffer)
 273 {
 274         int w = 0;
 275         // Does look like a hack? It is! (but will change at 0.13)
 276         LyXParagraph * par = buffer->paragraph;
 277         InsetBibKey * bkey = 0;
 278         LyXFont font;
 279
 280         while (par) {
 281                 if (par->bibkey) {
 282                         int const wx =
 283                                 lyxfont::width(par->bibkey->getBibLabel(),
 284                                                font);
 285                         if (wx > w) {
 286                                 w = wx;
 287                                 bkey = par->bibkey;
 288                         }
 289                 }
 290                 par = par->next();
 291         }
 292
 293         if (bkey && !bkey->getBibLabel().empty())
 294                 return bkey->getBibLabel();
 295
 296         return "99";
 297 }