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Show decription for AARD dictionaries

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Abs62 2012-09-07 15:53:41 +04:00
parent 6f56a1c374
commit d0437a48d9
1 changed files with 110 additions and 58 deletions
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158
aard.cc
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@ -205,9 +205,63 @@ void readJSONValue( string const & source, string & str, uint32_t & pos)
}
}
map< string, string > parseMetaData( string const & metaData )
{
// Parsing JSON string
map< string, string > data;
string name, value;
uint32_t n = 0;
while( metaData[n] != '{' && n < metaData.length() )
n++;
while( n < metaData.length() )
{
// Skip to '"'
while( metaData[n] != '\"' && n < metaData.length() )
n++;
if( ++n >= metaData.length() )
break;
// Read name
while( !( ( metaData[n] == '\"' || metaData[n] == '{' ) && metaData[n-1] != '\\' )
&& n < metaData.length() )
name.push_back( metaData[n++]);
// Skip to ':'
if( ++n >= metaData.length() )
break;
while( metaData[n] != ':' && n < metaData.length() )
n++;
if( ++n >= metaData.length() )
break;
// Find value start after ':'
while( !( ( metaData[n] == '\"'
|| metaData[n] == '{'
|| metaData[n] == '['
|| ( metaData[n] >= '0' && metaData[n] <= '9' ) )
&& metaData[n-1] != '\\' )
&& n < metaData.length() )
n++;
if( n >= metaData.length() )
break;
readJSONValue( metaData, value, n);
data[name] = value;
name.clear();
value.clear();
if( ++n >= metaData.length() )
break;
}
return data;
}
class AardDictionary: public BtreeIndexing::BtreeDictionary
{
Mutex idxMutex;
Mutex aardMutex;
File::Class idx;
IdxHeader idxHeader;
ChunkedStorage::Reader chunks;
@ -250,6 +304,8 @@ class AardDictionary: public BtreeIndexing::BtreeDictionary
wstring const & )
throw( std::exception );
virtual QString const& getDescription();
private:
void loadIcon();
@ -287,6 +343,9 @@ AardDictionary::AardDictionary( string const & id,
openIndex( IndexInfo( idxHeader.indexBtreeMaxElements,
idxHeader.indexRootOffset ),
idx, idxMutex );
// Read decription
}
AardDictionary::~AardDictionary()
@ -440,11 +499,14 @@ void AardDictionary::loadArticle( uint32_t address,
articleText.clear();
{
Mutex::Lock _( aardMutex );
df.seek( articleOffset );
df.read( &size, sizeof(size) );
articleSize = size;
articleBody.resize( articleSize );
df.read( &articleBody.front(), articleSize );
}
if ( articleBody.empty() )
throw exCantReadFile( getDictionaryFilenames()[ 0 ] );
@ -489,6 +551,43 @@ void AardDictionary::loadArticle( uint32_t address,
articleText = "<div class=\"sdict\">" + articleText + "</div>";
}
QString const& AardDictionary::getDescription()
{
if( !dictionaryDescription.isEmpty() )
return dictionaryDescription;
dictionaryDescription = "NONE";
AAR_header dictHeader;
uint32_t size;
vector< char > data;
{
Mutex::Lock _( aardMutex );
df.seek( 0 );
df.read( &dictHeader, sizeof(dictHeader) );
size = dictHeader.metaLength;
data.resize( size );
df.read( &data.front(), size );
}
string metaStr = decompressBzip2( data.data(), size );
if( metaStr.empty() )
metaStr = decompressZlib( data.data(), size );
map< string, string > meta = parseMetaData( metaStr );
if( !meta.empty() )
{
map< string, string >::const_iterator iter = meta.find( "description" );
if( iter != meta.end() )
dictionaryDescription = QString::fromUtf8( iter->second.c_str() );
dictionaryDescription.replace( "\\n", "\n" );
dictionaryDescription.replace( "\\t", "\t" );
}
return dictionaryDescription;
}
/// AardDictionary::getArticle()
class AardArticleRequest;
@ -656,59 +755,6 @@ void AardArticleRequest::run()
finish();
}
map< string, string > parseMetaData( string const & metaData )
{
// Parsing JSON string
map< string, string > data;
string name, value;
uint32_t n = 0;
while( metaData[n] != '{' && n < metaData.length() )
n++;
while( n < metaData.length() )
{
// Skip to '"'
while( metaData[n] != '\"' && n < metaData.length() )
n++;
if( ++n >= metaData.length() )
break;
// Read name
while( !( ( metaData[n] == '\"' || metaData[n] == '{' ) && metaData[n-1] != '\\' )
&& n < metaData.length() )
name.push_back( metaData[n++]);
// Skip to ':'
if( ++n >= metaData.length() )
break;
while( metaData[n] != ':' && n < metaData.length() )
n++;
if( ++n >= metaData.length() )
break;
// Find value start after ':'
while( !( ( metaData[n] == '\"'
|| metaData[n] == '{'
|| metaData[n] == '['
|| ( metaData[n] >= '0' && metaData[n] <= '9' ) )
&& metaData[n-1] != '\\' )
&& n < metaData.length() )
n++;
if( n >= metaData.length() )
break;
readJSONValue( metaData, value, n);
data[name] = value;
name.clear();
value.clear();
if( ++n >= metaData.length() )
break;
}
return data;
}
sptr< Dictionary::DataRequest > AardDictionary::getArticle( wstring const & word,
vector< wstring > const & alts,
wstring const & )
@ -766,6 +812,12 @@ vector< sptr< Dictionary::Class > > makeDictionaries(
vector< char > data;
uint32_t size = dictHeader.metaLength;
if( size == 0 )
{
DPRINTF( "File %s has invalid metadata", i->c_str() );
continue;
}
data.resize( size );
df.read( &data.front(), size );
string metaStr = decompressBzip2( data.data(), size );