+ // and cache the timestamp of the bibliography files.
+ static std::map<FileName, time_t> bibfileStatus;
+
+ biblio::InfoMap infomap;
+
+ vector<FileName> const & bibfilesCache = buffer.getBibfilesCache();
+ // compare the cached timestamps with the actual ones.
+ bool changed = false;
+ for (vector<FileName>::const_iterator it = bibfilesCache.begin();
+ it != bibfilesCache.end(); ++ it) {
+ FileName const f = *it;
+ try {
+ std::time_t lastw = fs::last_write_time(f.toFilesystemEncoding());
+ if (lastw != bibfileStatus[f]) {
+ changed = true;
+ bibfileStatus[f] = lastw;
+ }
+ }
+ catch (fs::filesystem_error & fserr) {
+ changed = true;
+ lyxerr << "Couldn't find or read bibtex file "
+ << f << endl;
+ lyxerr[Debug::DEBUG] << "Fs error: "
+ << fserr.what() << endl;
+ }
+ }
+
+ // build the keylist only if the bibfiles have been changed
+ if (cached_keys[&buffer].empty() || bibfileStatus.empty() || changed) {
+ typedef vector<std::pair<string, docstring> > InfoType;
+ InfoType bibkeys;
+ buffer.fillWithBibKeys(bibkeys);
+
+ InfoType::const_iterator bit = bibkeys.begin();
+ InfoType::const_iterator bend = bibkeys.end();
+
+ for (; bit != bend; ++bit)
+ infomap[bit->first] = bit->second;
+
+ cached_keys[&buffer] = infomap;
+ } else
+ // use the cached keys
+ infomap = cached_keys[&buffer];
+
+ if (infomap.empty())
+ return docstring();
+
+ // the natbib citation-styles
+ // CITET: author (year)
+ // CITEP: (author,year)
+ // CITEALT: author year
+ // CITEALP: author, year
+ // CITEAUTHOR: author
+ // CITEYEAR: year
+ // CITEYEARPAR: (year)
+ // jurabib supports these plus
+ // CITE: author/<before field>
+
+ // We don't currently use the full or forceUCase fields.
+ string cite_type = biblio::asValidLatexCommand(citeType, engine);
+ if (cite_type[0] == 'C')
+ cite_type = string(1, 'c') + cite_type.substr(1);
+ if (cite_type[cite_type.size() - 1] == '*')
+ cite_type = cite_type.substr(0, cite_type.size() - 1);
+
+ docstring before_str;
+ if (!before.empty()) {
+ // In CITET and CITEALT mode, the "before" string is
+ // attached to the label associated with each and every key.
+ // In CITEP, CITEALP and CITEYEARPAR mode, it is attached
+ // to the front of the whole only.
+ // In other modes, it is not used at all.
+ if (cite_type == "citet" ||
+ cite_type == "citealt" ||
+ cite_type == "citep" ||
+ cite_type == "citealp" ||
+ cite_type == "citeyearpar")
+ before_str = before + ' ';
+ // In CITE (jurabib), the "before" string is used to attach
+ // the annotator (of legal texts) to the author(s) of the
+ // first reference.
+ else if (cite_type == "cite")
+ before_str = '/' + before;
+ }