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FindLine.cpp
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FindLine.cpp
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/**
* FindLine.cpp -
* @author: Jonathan Beard
* @version: Sun Mar 30 07:55:15 2014
*/
#include "FindLine.hpp"
#include "common.hpp"
#include <iostream>
#include <fstream>
#include <queue>
#include <utility>
#include <sstream>
using namespace Raft;
std::string
FindLine::findLine( const std::string filename,
size_t expected_line,
const std::string phrase )
{
std::queue< std::pair< size_t , std::string > > queue;
/** first open file **/
std::ifstream input( filename );
std::string line;
size_t current_line( 1 );
if( input.is_open() )
{
while( std::getline( input, line ) )
{
if( queue.size() < 3 )
{
queue.push( std::make_pair( current_line, line ) );
}
else if( queue.size() == 3 )
{
/** get rid of the last one **/
queue.pop();
/** insert a new one **/
queue.push( std::make_pair( current_line, line ) );
}
if( (current_line++) == (expected_line+1) )
{
break;
}
}
}
/** COLORS **/
const std::string blue( "\033[1;36m" );
const std::string normal( "\033[0m" );
const std::string red( "\033[1;31m" );
std::string onlyfilename( Common::GetFileNameFromPath( filename ) );
std::stringstream ss;
while( queue.size() > 0 )
{
auto pair( queue.front() );
queue.pop();
ss << red << onlyfilename << " " << pair.first << ": " << normal << pair.second << "\n";
}
/** then highlight with appropriate colors **/
std::string text( ss.str() );
#if(0)
/** trim the phrase **/
const auto strBegin( phrase.find_first_not_of( " " ) );
if( strBegin == phrase.length() ) return( text );
const auto strEnd( phrase.find_last_not_of( " " ) );
const auto strLength( strEnd - strBegin + 1 );
const std::string trimPhrase( phrase.substr( strBegin, strLength ) );
#endif
size_t start_index( text.find( phrase ) );
if( start_index == 0 || start_index > text.length() )
{
return( text );
}
size_t end_index( text.find_first_not_of( phrase, start_index ) );
if( end_index <= 0 || end_index > text.length() )
{
return( text );
}
std::string start( text.substr( 0,start_index ) );
std::string end( text.substr( --end_index ) );
std::stringstream output;
output << start << " " << blue << phrase << normal << " " << end << "\n";
input.close();
return( output.str() );
}