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// -*- C++ -*-
//
// CFileLineReader.cc is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2011 Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the CFileLineReader class.
//
#include "CFileLineReader.h"
#include "config.h"
#include <cstdlib>
using namespace ThePEG;
CFileLineReader::CFileLineReader()
: bufflen(defsize), buff(new char[defsize]), pos(buff), bad(false) {}
CFileLineReader::CFileLineReader(string filename, int len)
: bufflen(len), buff(new char[len]), pos(buff), bad(false) {
open(filename);
}
CFileLineReader::~CFileLineReader() {
close();
}
void CFileLineReader::open(string filename) {
close();
file = CFile(filename, "r");
pos = buff;
bad = !file;
}
void CFileLineReader::close() {
file.close();
bad = true;
}
bool CFileLineReader::readline() {
bad = ( file.gets(buff, bufflen) == 0 );
pos = buff;
return !bad;
}
CFileLineReader::operator void *() {
// the returned address is not meant to be dereferenced,
// it only indicates success.
return bad ? 0 : &bad;
}
bool CFileLineReader::operator!() {
return bad;
}
char CFileLineReader::getc() {
char c = *pos++;
bad = ( *pos == 0 );
return c;
}
bool CFileLineReader::skip(char c) {
while ( *pos != 0 && *pos++ != c ) {}
bad = ( *pos == 0 );
return !bad;
}
bool CFileLineReader::find(string str) const {
return ( string(pos).find(str) != string::npos );
}
std::string CFileLineReader::getline() const {
return std::string(pos);
}
CFileLineReader & CFileLineReader::operator>>(long & l) {
char * next;
l = std::strtol(pos, &next, 0);
bad = ( next == pos );
pos = next;
return *this;
}
CFileLineReader & CFileLineReader::operator>>(int & i) {
char * next;
i = int(std::strtol(pos, &next, 0));
bad = ( next == pos );
pos = next;
return *this;
}
CFileLineReader & CFileLineReader::operator>>(unsigned long & l) {
char * next;
l = std::strtoul(pos, &next, 0);
bad = ( next == pos );
pos = next;
return *this;
}
CFileLineReader & CFileLineReader::operator>>(unsigned int & i) {
char * next;
i = static_cast<unsigned int>(std::strtoul(pos, &next, 0));
bad = ( next == pos );
pos = next;
return *this;
}
CFileLineReader & CFileLineReader::operator>>(double & d) {
char * next;
d = std::strtod(pos, &next);
bad = ( next == pos );
pos = next;
// fortran formatted doubles
if(!bad && ( *pos == 'd' || *pos == 'D')) {
++pos;
int exp;
*this >> exp;
d *= pow(10.,exp);
}
return *this;
}
CFileLineReader & CFileLineReader::operator>>(float & f) {
char * next;
f = float(std::strtod(pos, &next));
bad = ( next == pos );
pos = next;
// fortran formatted doubles
if(!bad && ( *pos == 'd' || *pos == 'D')) {
++pos;
int exp;
*this >> exp;
f *= pow(10.,exp);
}
return *this;
}
CFileLineReader & CFileLineReader::operator>>(std::string & s) {
while ( *pos != 0 && std::isspace(*pos) ) ++pos;
bad = ( *pos == 0 );
char * first = pos;
while ( *pos != 0 && !std::isspace(*pos) ) ++pos;
s.assign(first, pos);
return *this;
}
CFile CFileLineReader::cFile() const {
return file;
}
void CFileLineReader::resetline() {
bad = false;
pos = buff;
}
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