diff options
Diffstat (limited to 'libbuild2/functions-name.cxx')
| -rw-r--r-- | libbuild2/functions-name.cxx | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/libbuild2/functions-name.cxx b/libbuild2/functions-name.cxx index 9ba20a8..800c377 100644 --- a/libbuild2/functions-name.cxx +++ b/libbuild2/functions-name.cxx @@ -10,6 +10,9 @@ using namespace std; namespace build2 { + extern bool + functions_sort_flags (optional<names>); // functions-builtin.cxx + // Convert name to target'ish name (see below for the 'ish part). Return // raw/unprocessed data in case this is an unknown target type (or called // out of scope). See scope::find_target_type() for details. Allow out- @@ -174,6 +177,44 @@ namespace build2 return to_target_name (s, move (n), o).first.proj; }; + // $size(<names>) + // + // Return the number of elements in the sequence. + // + fn["size"] += [] (names ns) + { + size_t n (0); + + for (auto i (ns.begin ()); i != ns.end (); ++i) + { + ++n; + if (i->pair && !(++i)->directory ()) + fail << "name pair in names"; + } + + return n; + }; + + // $sort(<names> [, <flags>]) + // + // Sort names in ascending order. + // + // The following flags are supported: + // + // dedup - in addition to sorting also remove duplicates + // + fn["sort"] += [] (names ns, optional<names> fs) + { + //@@ TODO: shouldn't we do this in a pair-aware manner? + + sort (ns.begin (), ns.end ()); + + if (functions_sort_flags (move (fs))) + ns.erase (unique (ns.begin(), ns.end()), ns.end ()); + + return ns; + }; + // Functions that can be called only on real targets. // function_family ft (m, "target"); |