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#include <cstdlib>
#include <cerrno>
#include <cassert>
#include <vector>
#include <sstream>
#include <cstring>
#include <iterator>
#include "CondTools/Hcal/interface/parseHcalDetId.h"
static const char* subdetNames[] = {
"",
"HB",
"HE",
"HO",
"HF",
};
static const unsigned nSsubdetNames = sizeof(subdetNames) / sizeof(subdetNames[0]);
static bool parseSubdetector(const char* c, HcalSubdetector* result) {
assert(c);
assert(result);
for (unsigned i = 1; i < nSsubdetNames; ++i)
if (strcmp(c, subdetNames[i]) == 0) {
*result = static_cast<HcalSubdetector>(i);
return true;
}
return false;
}
static bool parse_int(const char* c, int* result) {
assert(c);
assert(result);
char* endptr;
errno = 0;
*result = strtol(c, &endptr, 0);
return !errno && *endptr == '\0';
}
const char* hcalSubdetectorName(HcalSubdetector subdet) {
const unsigned ind = static_cast<unsigned>(subdet);
assert(ind < nSsubdetNames);
return subdetNames[ind];
}
HcalDetId parseHcalDetId(const std::string& s) {
using namespace std;
// Expected string contents:
//
// ieta iphi depth subdetector
//
// subdetector is one of "HB", "HE", "HF", or "HO"
//
HcalDetId result;
istringstream iss(s);
vector<string> tokens(istream_iterator<string>{iss}, istream_iterator<string>{});
if (tokens.size() == 4) {
HcalSubdetector subdet;
int ieta, iphi, depth;
if (parse_int(tokens[0].c_str(), &ieta) && parse_int(tokens[1].c_str(), &iphi) &&
parse_int(tokens[2].c_str(), &depth) && parseSubdetector(tokens[3].c_str(), &subdet))
result = HcalDetId(subdet, ieta, iphi, depth);
}
return result;
}
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