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#include "EStringList.h" // <-- see this file for license, etc.
#include <fstream>
#include "EStdStringTokenizer.h"
#include "rng.h"
using namespace std;
ostream &
operator<<(ostream &os, const EStringList &obj)
{
os << obj.toString();
return os;
}
string &
operator<<(string &os, const EStringList &obj)
{
os += obj.toString();
return os;
}
EStringList &
operator +=(EStringList &obj, const string &os)
{
obj.getList().push_back( os );
return obj;
}
EStringList::EStringList()
{
return ;
}
EStringList::EStringList( const StringList &list ) : m_list( list )
{
}
// EStringList::EStringList( const EStringList &elist ) : m_list( elist..getList() )
// {
// }
// static
string
EStringList::join( const EStringList &strlist, const string &separator )
{
const_iterator it = strlist.begin();
string result;
while( it != strlist.end() )
{
result += (*it);
++it;
//if( result.empty() ) continue; // SOOOO arguable!
result += separator;
}
// result.erase( result.find_last_of( separator ) ); // knock of trailing separator
// does not work for multi-char separator because of the way find_last_of() works. :(
result.erase( result.rfind( separator ) );
//CERR << "join(): = ["<<result<<"]"<<endl;
return result;
}
string
EStringList::join( const StringList &strlist, const string &separator )
{
EStringList e;
e.setList( strlist );
return EStringList::join( e, separator );
}
// split
EStringList
EStringList::split( const string & sequence, const string &separator )
{
EStringList result;
if( sequence.empty() ) return result;
//CERR <<"split( "<<sequence<<", "<<separator<<" )"<<endl;
string lazykludge = sequence + separator;
string::size_type pos = 0;
string::size_type pos2 = lazykludge.find( separator );
if( pos2 == string::npos ) {
result += lazykludge;
return result;
}
string slice;
while( pos2 != string::npos )
{
slice = lazykludge.substr( pos, pos2 - pos );
//CERR << "pos="<<pos<<", pos2="<<pos2<<", slice="<<slice<<endl;
// if( ! slice.empty() )
// {
result.getList().push_back( slice );
// }
pos = pos2 + 1;
pos2 = lazykludge.find( separator, pos );
while( pos2 == pos && pos2 != string::npos ) /* foo::::bar */
{
pos++;
pos2 = lazykludge.find( separator, pos );
}
}
return result;
}
EStringList // static
EStringList::tokenize( const std::string &seq, const std::string &separators )
{
EStringList result;
EStdStringTokenizer toker;
toker.tokenize( seq.c_str(), separators.c_str() );
string token;
while( toker.hasMoreTokens() )
{
token = toker.nextToken();
//std::cout << "EStringList::tokenize(): token ["<<token<<"]"<<std::endl;
result += string( token );
}
return result;
}
EStringList::StringList &
EStringList::getList() /* const - see the header */
{
return this->m_list;
}
void
EStringList::setList( const StringList &list ) { this->m_list = list; }
int
EStringList::count() const
{
unsigned int c = 0;
EStringList::const_iterator it = this->begin();
EStringList::const_iterator end = this->end();
while( it != end )
{
++c;
++it;
}
return c;
}
string
EStringList::toString( const string & separator, bool quoteSpecialTokens ) const
{
EStringList::const_iterator it = this->begin();
string str;
int c = 0;
string tmpstr;
static const string quoteworthy = " \t$\n"; // $ might expand to space-sep'd tokens.
// shite: {,} break shell parsing: Foo.{cpp,h} != "Foo.{cpp,h}"
while( it != this->end() )
{
++c;
if( quoteSpecialTokens )
{
tmpstr = (*it);
if( tmpstr.find_first_of( quoteworthy ) != string::npos )
{
str += "\"" + tmpstr + "\"";
}
else str += tmpstr;
}
else
{
str += (*it);
}
str += separator;
++it;
}
if( c ) str.erase( str.rfind( separator ) ); // knock off trailing separator.
return str;
}
// static
EStringList *
EStringList::loadFromFile( const std::string &fn )
{
std::ifstream file(fn.c_str());
if (!file) return NULL;
EStringList *list = new EStringList();
if( ! list->load( fn ) )
{
delete( list );
return NULL;
}
return list;
}
bool
EStringList::load( const std::string &fn, bool skipComments, bool skipEmptyLines )
{
std::ifstream file(fn.c_str());
if (!file) return false;
string line;
while (std::getline(file, line))
{
if( skipEmptyLines && line.empty() ) continue;
if( skipComments && !line.empty() && ( line[0] == '#' || line[0] == ';' ) ) continue;
//CERR << "line="<<line << endl;
*this += line;
}
return true;
}
std::string
EStringList::randomEntry( bool removeIt )
{
int count = this->count();
if( 0 == count ) return std::string();
// int rand = (int) random( 0, count+1 );
static RNG rng;
int rand = rng.select( 0, count );
iterator it = this->begin();
for( int i = 0; i < rand; i++ ) ++it;
//CERR << "randomEntry() returning ["<<(*it)<<"]"<<endl;
if( ! removeIt ) return (*it);
std::string foo = (*it);
this->m_list.erase( it );
return foo;
}
string
EStringList::shift( unsigned int places )
{
if( places < 0 ) return string();
unsigned int count = this->count();
if( places > count ) return string();
string arg;
for( unsigned int i = 0; i < places; i++ )
{
if( i == places-1 ) arg = *(m_list.begin());
this->m_list.erase( m_list.begin() );
}
return arg;
}
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