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#include "RangeList.h"
#include <iostream>
#include <fstream>
#include <algorithm>
#define RANGE_LIST_SOURCE_ID "$Id: RangeList.C,v 1.5 2005/03/07 18:58:08 rcook Exp $"
void PrintVersion(void) {
cout << "Range List header is " << RANGE_LIST_HEADER_ID << " and source is " << RANGE_LIST_SOURCE_ID << endl;
return;
}
using namespace std;
// for templated searches:
bool operator < (long num, const range &r) { return r > num;}
bool operator > (long num, const range &r) { return r < num;}
bool operator ==(long num, const range &r) { return r.Contains(num);}
bool operator ==(const range &r, long num) { return r.Contains(num);}
void RangeList::Print(void) {
cout << "printing range list: " << endl;
vector<range>::iterator pos = ranges.begin(), end = ranges.end();
while (pos != end){
pos->Print();
++pos;
}
cout << "end of range list." << endl;
return;
}
void RangeList::AddRange(long start, long end){
if (end < start)
throw string("AddRange: start is greater than end!");
ranges.push_back(range(start, end));
if (verbose)
cout << "RangeList:AddRange(" << start << ", " << end <<")" << endl;
return;
}
void RangeList::GetOneRange(ifstream &filterfile) {
long start, end;
char token;
while (filterfile >> start) {
//if we immediately see a number, then it is just a number; treat it like a range
AddRange(start, start);
return;
}
// did not see a number
filterfile.clear();
filterfile >> token;
if (token == ',') {
// a comma is optional; just ignore it and move on
return;
}
// if we don't see a number or a comma, then it's a range, starting with '['
if (filterfile.eof())
return;
if (token != '[' )
throw string("Expected '[' in range but got \"")+token+string("\"");
if (!(filterfile >> start))
throw string("Did not find a number after opening bracket in range.");
filterfile >> token;
if (token != '-')
throw string("Expected dash; found \"")+token+"\" in range after number";
if (!(filterfile >> end))
throw string("Did not find a number after dash in range.");
filterfile >> token;
if (token != ']' )
throw string("Expected ']' in range but got \"")+token+string("\"");
AddRange(start, end);
return;
}
void RangeList::Parse(char *filename) {
ifstream filterfile(filename);
if (!filterfile)
throw string("Could not open filter file ")+string(filename);
while (!filterfile.eof() && !filterfile.bad())
GetOneRange(filterfile);
return;
}
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