Auto-trim dashes for parser::params() lookup by name.

Author: adishavit

argh.h

@@ -462,6 +462,7 @@ namespace argh
 
    inline multimap_iteration_wrapper parser::params(std::string const& name) const
    {
-      return multimap_iteration_wrapper(params_.lower_bound(name), params_.upper_bound(name));
+      auto trimmed_name = trim_leading_dashes(name);
+      return multimap_iteration_wrapper(params_.lower_bound(trimmed_name), params_.upper_bound(trimmed_name));
    }
 }

argh_tests.cpp

@@ -809,6 +809,7 @@ TEST_CASE("Test multiple parameters with the same name")
       CHECK(4 == cmdl.params().size());
       CHECK(1 == cmdl.params("bar").size());
       CHECK(3 == cmdl.params("foo").size());
+      CHECK(3 == cmdl.params("--foo").size());
 
       for (const auto& param : cmdl.params("foo")) {
          auto found = values.find(param.second);