#include <vector>#include <sstream>#include <algorithm>#include <dvutil/tostring.h>#include <dvutil/date.h>#include <config.h>#include "index.h"#include "word.h"#include "wordstreamiterator.h"Go to the source code of this file.
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| ostream & | operator<< (ostream &os, const Index &index) |
| istream & | operator>> (istream &is, Index &index) throw (runtime_error) |
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Format: #textindexer VERSION -- do not edit this file time_t filename ... empty line word fileid .. Definition at line 24 of file index.C. References Index::begin(), Index::dates_, Index::end(), Index::Files, and Index::iterator.
00024 {
00025 // Write first line: MAGIC version#
00026 os << MAGIC << " " << VERSION << " -- do not edit this file" << endl;
00027 // Write pool contents & remember the position of each pointer.
00028 os << index.dates_.size() << endl;
00029 map<const string*,int> file_nrs;
00030 size_t n(0);
00031 for (Index::Dates::const_iterator i = index.dates_.begin();
00032 i!=index.dates_.end(); ++i) {
00033 os << (*i).second << ' ' << *((*i).first) << "\n";
00034 file_nrs[(*i).first] = n++;
00035 }
00036 for (Index::iterator i=index.begin(); i!= index.end(); ++i) {
00037 os << (*i).first;
00038 const Index::Files& files((*i).second);
00039 for (Index::Files::const_iterator j = files.begin(); j!=files.end(); ++j)
00040 os << " " << file_nrs[*j];
00041 os << "\n";
00042 }
00043 return os;
00044 }
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Definition at line 47 of file index.C. References Word::str().
00047 {
00048 // Read first line: MAGIC version junk
00049 // Normally, we would use ignore(numeric_limits<int>::max(), '\n')
00050 // but #include <limits> does not work in this g++ version.
00051 string magic;
00052 string junk;
00053 double version;
00054 is >> magic >> version;
00055 getline(is,junk);
00056 if (magic!=MAGIC)
00057 throw runtime_error("Bad magic in textindexer index file");
00058 // Perhaps a test on version should come here.
00059 vector<const string*> files;
00060 StringPool& pool(index.pool());
00061 size_t n;
00062 is >> n;
00063 string filename;
00064 time_t t;
00065 for (size_t i=0; i<n; ++i) {
00066 is >> t;
00067 if (t==0)
00068 throw runtime_error("Index reader: time == 0");
00069 is.ignore();
00070 getline(is, filename);
00071 if (filename.size()==0)
00072 throw runtime_error("Index reader: empty filename ");
00073 const string* pfn(pool[filename]);
00074 files.push_back(pfn);
00075 index.dates_[pfn] = t;
00076 }
00077 string line;
00078 while (getline(is,line)) {
00079 istringstream iss(line);
00080 Word w;
00081 iss >> w;
00082 size_t i;
00083 while (iss>>i) {
00084 if (i>=files.size())
00085 throw runtime_error(Dv::Util::tostring(i) + ": illegal file#");
00086 index.map_[w.str()].insert(files[i]);
00087 }
00088 }
00089 return is;
00090 }
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| textindexer-0.2 | [27 March, 2002] |