src/insets/insetbibtex.C

   1 /**
   2  * \file insetbibtex.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10 #include <config.h>
  11
  12
  13 #include "insetbibtex.h"
  14 #include "buffer.h"
  15 #include "BufferView.h"
  16 #include "debug.h"
  17 #include "funcrequest.h"
  18 #include "gettext.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
  36
  37 InsetBibtex::InsetBibtex(InsetCommandParams const & p, bool)
  38         : InsetCommand(p)
  39 {}
  40
  41
  42 InsetBibtex::~InsetBibtex()
  43 {
  44         InsetCommandMailer mailer("bibtex", *this);
  45         mailer.hideDialog();
  46 }
  47
  48
  49 dispatch_result InsetBibtex::localDispatch(FuncRequest const & cmd)
  50 {
  51         switch (cmd.action) {
  52
  53         case LFUN_INSET_EDIT:
  54                 InsetCommandMailer("bibtex", *this).showDialog(cmd.view());
  55                 return DISPATCHED;
  56
  57         case LFUN_INSET_MODIFY: {
  58                 InsetCommandParams p;
  59                 InsetCommandMailer::string2params(cmd.argument, p);
  60                 if (p.getCmdName().empty())
  61                         return DISPATCHED;
  62
  63                 if (view() && p.getContents() != params().getContents()) {
  64                         view()->ChangeCitationsIfUnique(params().getContents(),
  65                                                         p.getContents());
  66                 }
  67
  68                 setParams(p);
  69                 cmd.view()->updateInset(this);
  70                 return  DISPATCHED;
  71         }
  72
  73         default:
  74                 return InsetCommand::localDispatch(cmd);
  75         }
  76
  77 }
  78
  79 string const InsetBibtex::getScreenLabel(Buffer const *) const
  80 {
  81         return _("BibTeX Generated References");
  82 }
  83
  84
  85 int InsetBibtex::latex(Buffer const * buffer, ostream & os,
  86                        bool /*fragile*/, bool/*fs*/) const
  87 {
  88         // changing the sequence of the commands
  89         // 1. \bibliographystyle{style}
  90         // 2. \addcontentsline{...} - if option bibtotoc set
  91         // 3. \bibliography{database}
  92         string adb;
  93         string db_in = getContents();
  94         db_in = split(db_in, adb, ',');
  95
  96         // Style-Options
  97         string style = getOptions(); // maybe empty! and with bibtotoc
  98         string bibtotoc;
  99         if (prefixIs(style, "bibtotoc")) {
 100                 bibtotoc = "bibtotoc";
 101                 if (contains(style, ',')) {
 102                         style = split(style, bibtotoc, ',');
 103                 }
 104         }
 105
 106         if (!buffer->niceFile
 107             && IsFileReadable(MakeAbsPath(style, buffer->filePath()) + ".bst")) {
 108                 style = MakeAbsPath(style, buffer->filePath());
 109         }
 110
 111         if (!style.empty()) { // we want no \biblio...{}
 112                 os << "\\bibliographystyle{" << style << "}\n";
 113         }
 114
 115         // bibtotoc-Option
 116         if (!bibtotoc.empty()) {
 117                 // maybe a problem when a textclass has no "art" as
 118                 // part of its name, because it's than book.
 119                 // For the "official" lyx-layouts it's no problem to support
 120                 // all well
 121                 if (!contains(buffer->params.getLyXTextClass().name(),
 122                               "art")) {
 123                         if (buffer->params.sides == LyXTextClass::OneSide) {
 124                                 // oneside
 125                                 os << "\\clearpage";
 126                         } else {
 127                                 // twoside
 128                                 os << "\\cleardoublepage";
 129                         }
 130
 131                         // bookclass
 132                         os << "\\addcontentsline{toc}{chapter}{\\bibname}";
 133
 134                 } else {
 135                         // article class
 136                         os << "\\addcontentsline{toc}{section}{\\refname}";
 137                 }
 138         }
 139
 140         // database
 141         // If we generate in a temp dir, we might need to give an
 142         // absolute path there. This is a bit complicated since we can
 143         // have a comma-separated list of bibliographies
 144         string db_out;
 145         while (!adb.empty()) {
 146                 if (!buffer->niceFile &&
 147                     IsFileReadable(MakeAbsPath(adb, buffer->filePath())+".bib"))
 148                          adb = os::external_path(MakeAbsPath(adb, buffer->filePath()));
 149                 db_out += adb;
 150                 db_out += ',';
 151                 db_in = split(db_in, adb,',');
 152         }
 153         db_out = rtrim(db_out, ",");
 154         os   << "\\bibliography{" << db_out << "}\n";
 155         return 2;
 156 }
 157
 158
 159 vector<string> const InsetBibtex::getFiles(Buffer const & buffer) const
 160 {
 161         // Doesn't appear to be used (Angus, 31 July 2001)
 162         Path p(buffer.filePath());
 163
 164         vector<string> vec;
 165
 166         string tmp;
 167         string bibfiles = getContents();
 168         bibfiles = split(bibfiles, tmp, ',');
 169         while (!tmp.empty()) {
 170                 string file = findtexfile(ChangeExtension(tmp, "bib"), "bib");
 171                 lyxerr[Debug::LATEX] << "Bibfile: " << file << endl;
 172
 173                 // If we didn't find a matching file name just fail silently
 174                 if (!file.empty())
 175                         vec.push_back(file);
 176
 177                 // Get next file name
 178                 bibfiles = split(bibfiles, tmp, ',');
 179         }
 180
 181         return vec;
 182 }
 183
 184
 185 // This method returns a comma separated list of Bibtex entries
 186 void InsetBibtex::fillWithBibKeys
 187         (Buffer const * buffer, vector<pair<string, string> > & keys) const
 188 {
 189         lyx::Assert(buffer);
 190         vector<string> const files = getFiles(*buffer);
 191         for (vector<string>::const_iterator it = files.begin();
 192              it != files.end(); ++ it) {
 193                 // This is a _very_ simple parser for Bibtex database
 194                 // files. All it does is to look for lines starting
 195                 // in @ and not being @preamble and @string entries.
 196                 // It does NOT do any syntax checking!
 197                 ifstream ifs(it->c_str());
 198                 string linebuf0;
 199                 while (getline(ifs, linebuf0)) {
 200                         string linebuf = trim(linebuf0);
 201                         if (linebuf.empty()) continue;
 202                         if (prefixIs(linebuf, "@")) {
 203                                 linebuf = subst(linebuf, '{', '(');
 204                                 string tmp;
 205                                 linebuf = split(linebuf, tmp, '(');
 206                                 tmp = ascii_lowercase(tmp);
 207                                 if (!prefixIs(tmp, "@string")
 208                                     && !prefixIs(tmp, "@preamble")) {
 209                                         linebuf = split(linebuf, tmp, ',');
 210                                         tmp = ltrim(tmp, " \t");
 211                                         if (!tmp.empty()) {
 212                                                 keys.push_back(pair<string,string>(tmp,string()));
 213                                         }
 214                                 }
 215                         } else if (!keys.empty()) {
 216                                 keys.back().second += linebuf + "\n";
 217                         }
 218                 }
 219         }
 220 }
 221
 222
 223 bool InsetBibtex::addDatabase(string const & db)
 224 {
 225         string contents(getContents());
 226         if (!contains(contents, db)) {
 227                 if (!contents.empty())
 228                         contents += ',';
 229                 setContents(contents + db);
 230                 return true;
 231         }
 232         return false;
 233 }
 234
 235
 236 bool InsetBibtex::delDatabase(string const & db)
 237 {
 238         if (contains(getContents(), db)) {
 239                 string bd = db;
 240                 int const n = tokenPos(getContents(), ',', bd);
 241                 if (n > 0) {
 242                         // Weird code, would someone care to explain this?(Lgb)
 243                         string tmp(", ");
 244                         tmp += bd;
 245                         setContents(subst(getContents(), tmp, ", "));
 246                 } else if (n == 0)
 247                         setContents(split(getContents(), bd, ','));
 248                 else
 249                         return false;
 250         }
 251         return true;
 252 }