// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ // $Id: debrecords.cc,v 1.10 2001/03/13 06:51:46 jgg Exp $ /* ###################################################################### Debian Package Records - Parser for debian package records ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ #include <config.h> #include <apt-pkg/debrecords.h> #include <apt-pkg/strutl.h> #include <apt-pkg/aptconfiguration.h> #include <apt-pkg/fileutl.h> #include <apt-pkg/cacheiterators.h> #include <apt-pkg/pkgcache.h> #include <apt-pkg/tagfile.h> #include <string.h> #include <algorithm> #include <string> #include <vector> #include <langinfo.h> /*}}}*/ using std::string; // RecordParser::debRecordParser - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ debRecordParser::debRecordParser(string FileName,pkgCache &Cache) : File(FileName,FileFd::ReadOnly, FileFd::Extension), Tags(&File, std::max(Cache.Head().MaxVerFileSize, Cache.Head().MaxDescFileSize) + 200) { } /*}}}*/ // RecordParser::Jump - Jump to a specific record /*{{{*/ // --------------------------------------------------------------------- /* */ bool debRecordParser::Jump(pkgCache::VerFileIterator const &Ver) { return Tags.Jump(Section,Ver->Offset); } bool debRecordParser::Jump(pkgCache::DescFileIterator const &Desc) { return Tags.Jump(Section,Desc->Offset); } /*}}}*/ // RecordParser::FileName - Return the archive filename on the site /*{{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::FileName() { return Section.FindS("Filename"); } /*}}}*/ // RecordParser::Name - Return the package name /*{{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::Name() { return Section.FindS("Package"); } /*}}}*/ // RecordParser::Homepage - Return the package homepage /*{{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::Homepage() { return Section.FindS("Homepage"); } /*}}}*/ // RecordParser::Hashes - return the available archive hashes /*{{{*/ HashStringList debRecordParser::Hashes() const { HashStringList hashes; for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type) { std::string const hash = Section.FindS(*type); if (hash.empty() == false) hashes.push_back(HashString(*type, hash)); } return hashes; } /*}}}*/ // RecordParser::Maintainer - Return the maintainer email /*{{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::Maintainer() { return Section.FindS("Maintainer"); } /*}}}*/ // RecordParser::RecordField - Return the value of an arbitrary field /*{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::RecordField(const char *fieldName) { return Section.FindS(fieldName); } /*}}}*/ // RecordParser::ShortDesc - Return a 1 line description /*{{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::ShortDesc(std::string const &lang) { string const Res = LongDesc(lang); if (Res.empty() == true) return ""; string::size_type const Pos = Res.find('\n'); if (Pos == string::npos) return Res; return string(Res,0,Pos); } /*}}}*/ // RecordParser::LongDesc - Return a longer description /*{{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::LongDesc(std::string const &lang) { string orig; if (lang.empty() == true) { std::vector<string> const lang = APT::Configuration::getLanguages(); for (std::vector<string>::const_iterator l = lang.begin(); l != lang.end(); ++l) { std::string const tagname = "Description-" + *l; orig = Section.FindS(tagname.c_str()); if (orig.empty() == false) break; else if (*l == "en") { orig = Section.FindS("Description"); if (orig.empty() == false) break; } } if (orig.empty() == true) orig = Section.FindS("Description"); } else { std::string const tagname = "Description-" + lang; orig = Section.FindS(tagname.c_str()); if (orig.empty() == true && lang == "en") orig = Section.FindS("Description"); } char const * const codeset = nl_langinfo(CODESET); if (strcmp(codeset,"UTF-8") != 0) { string dest; UTF8ToCodeset(codeset, orig, &dest); return dest; } return orig; } /*}}}*/ static const char *SourceVerSeparators = " ()"; // RecordParser::SourcePkg - Return the source package name if any /*{{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::SourcePkg() { string Res = Section.FindS("Source"); string::size_type Pos = Res.find_first_of(SourceVerSeparators); if (Pos == string::npos) return Res; return string(Res,0,Pos); } /*}}}*/ // RecordParser::SourceVer - Return the source version number if present /*{{{*/ // --------------------------------------------------------------------- /* */ string debRecordParser::SourceVer() { string Pkg = Section.FindS("Source"); string::size_type Pos = Pkg.find_first_of(SourceVerSeparators); if (Pos == string::npos) return ""; string::size_type VerStart = Pkg.find_first_not_of(SourceVerSeparators, Pos); if(VerStart == string::npos) return ""; string::size_type VerEnd = Pkg.find_first_of(SourceVerSeparators, VerStart); if(VerEnd == string::npos) // Corresponds to the case of, e.g., "foo (1.2" without a closing // paren. Be liberal and guess what it means. return string(Pkg, VerStart); else return string(Pkg, VerStart, VerEnd - VerStart); } /*}}}*/ // RecordParser::GetRec - Return the whole record /*{{{*/ // --------------------------------------------------------------------- /* */ void debRecordParser::GetRec(const char *&Start,const char *&Stop) { Section.GetSection(Start,Stop); } /*}}}*/