Fix screen name order in KDM emails.

[dcpomatic.git] / src / lib / util.cc

diff --git a/src/lib/util.cc b/src/lib/util.cc
index 7f6e9da5aff95feaee14a7cac247952d2e5cbd5d..fe6602de380cf60c2b3f0cf9fc197471eeef011b 100644 (file)
--- a/src/lib/util.cc
+++ b/src/lib/util.cc
@@ -1123,3 +1123,31 @@ word_wrap(string input, int columns)
        return output;
 }
 
+
+string
+screen_names_to_string(vector<string> names)
+{
+       if (names.empty()) {
+               return {};
+       }
+
+       auto number = [](string const& s) {
+               return s.find_first_not_of("0123456789") == string::npos;
+       };
+
+       if (std::find_if(names.begin(), names.end(), [number](string const& s) { return !number(s); }) == names.end()) {
+               std::sort(names.begin(), names.end(), [](string const& a, string const& b) {
+                       return dcp::raw_convert<int>(a) < dcp::raw_convert<int>(b);
+               });
+       } else {
+               std::sort(names.begin(), names.end());
+       }
+
+       string result;
+       for (auto const& name: names) {
+               result += name + ", ";
+       }
+
+       return result.substr(0, result.length() - 2);
+}
+