*/
#include "raw_convert.h"
+#include "image_filename_sorter.h"
#include <boost/filesystem.hpp>
#include <boost/foreach.hpp>
#include <iostream>
-class ImageFilenameSorter
+using std::list;
+
+bool
+ImageFilenameSorter::operator() (boost::filesystem::path a, boost::filesystem::path b)
{
-public:
- bool operator() (boost::filesystem::path a, boost::filesystem::path b)
- {
- std::list<int> na = extract_numbers (a);
- std::list<int> nb = extract_numbers (b);
- if (na.empty() || nb.empty()) {
- return a.string() < b.string();
- }
+ std::list<int> na = extract_numbers (a);
+ std::list<int> nb = extract_numbers (b);
+ if (na.empty() || nb.empty()) {
+ return a.string() < b.string();
+ }
- if (na.size() != nb.size()) {
- /* Just use the first one */
- return na.front() < nb.front();
- }
+ if (na.size() != nb.size()) {
+ /* Just use the first one */
+ return na.front() < nb.front();
+ }
- std::list<int>::const_iterator i = na.begin ();
- std::list<int>::const_iterator j = nb.begin ();
+ std::list<int>::const_iterator i = na.begin ();
+ std::list<int>::const_iterator j = nb.begin ();
- while (i != na.end()) {
- if (*i != *j) {
- return *i < *j;
- }
- ++i;
- ++j;
+ while (i != na.end()) {
+ if (*i != *j) {
+ return *i < *j;
}
-
- /* All the same */
- return false;
+ ++i;
+ ++j;
}
-private:
- std::list<int> extract_numbers (boost::filesystem::path p)
- {
- p = p.leaf ();
-
- std::list<std::string> numbers;
-
- std::string current;
- for (size_t i = 0; i < p.string().size(); ++i) {
- if (isdigit (p.string()[i])) {
- current += p.string()[i];
- } else {
- if (!current.empty ()) {
- numbers.push_back (current);
- current.clear ();
- }
- }
- }
+ /* All the same */
+ return false;
- if (!current.empty ()) {
- numbers.push_back (current);
- }
+}
- std::list<int> numbers_as_int;
- BOOST_FOREACH (std::string i, numbers) {
- numbers_as_int.push_back (raw_convert<int> (i));
+list<int>
+ImageFilenameSorter::extract_numbers (boost::filesystem::path p)
+{
+ p = p.leaf ();
+
+ std::list<std::string> numbers;
+
+ std::string current;
+ for (size_t i = 0; i < p.string().size(); ++i) {
+ if (isdigit (p.string()[i])) {
+ current += p.string()[i];
+ } else {
+ if (!current.empty ()) {
+ numbers.push_back (current);
+ current.clear ();
+ }
}
+ }
+
+ if (!current.empty ()) {
+ numbers.push_back (current);
+ }
- return numbers_as_int;
+ std::list<int> numbers_as_int;
+ BOOST_FOREACH (std::string i, numbers) {
+ numbers_as_int.push_back (raw_convert<int> (i));
}
-};
+
+ return numbers_as_int;
+}