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authorBoris Kolpackov <boris@codesynthesis.com>2021-11-02 15:18:05 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2021-11-02 15:24:35 +0200
commitf500b3274b4c937d315a652aad3bfcdd808b49ec (patch)
tree551ced41e7912f7a4b71e77c6dc0bdef23f90b76 /libbuild2/functions-builtin.cxx
parentc56aa2d2e407bfffc2b62d4bad3a65051f31b80b (diff)
Add $sort() function
Available overloads: $sort(<names> [, <flags>]) $sort(<ints> [, <flags>]) $sort(<strings> [, <flags>]) $sort(<paths> [, <flags>]) $sort(<dir_paths> [, <flags>]) The following flag is supported by the all overloads: dedup - in addition to sorting also remove duplicates Additionally, the strings overload also support the following flag: icase - sort ignoring case Note that on case-insensitive filesystem the paths and dir_paths overload's order is case-insensitive.
Diffstat (limited to 'libbuild2/functions-builtin.cxx')
-rw-r--r--libbuild2/functions-builtin.cxx70
1 files changed, 69 insertions, 1 deletions
diff --git a/libbuild2/functions-builtin.cxx b/libbuild2/functions-builtin.cxx
index 2adff38..d040ba8 100644
--- a/libbuild2/functions-builtin.cxx
+++ b/libbuild2/functions-builtin.cxx
@@ -11,6 +11,27 @@ using namespace std;
namespace build2
{
+ // Note: not static since used by type-specific sort() implementations.
+ //
+ bool
+ functions_sort_flags (optional<names> fs)
+ {
+ bool r (false);
+ if (fs)
+ {
+ for (name& f: *fs)
+ {
+ string s (convert<string> (move (f)));
+
+ if (s == "dedup")
+ r = true;
+ else
+ throw invalid_argument ("invalid flag '" + s + "'");
+ }
+ }
+ return r;
+ };
+
void
builtin_functions (function_map& m)
{
@@ -57,7 +78,6 @@ namespace build2
f["string"] += [](bool b) {return b ? "true" : "false";};
f["string"] += [](int64_t i) {return to_string (i);};
f["string"] += [](uint64_t i) {return to_string (i);};
- f["string"] += [](name n) {return to_string (n);};
// Quote a value returning its string representation. If escape is true,
// then also escape (with a backslash) the quote characters being added
@@ -80,6 +100,54 @@ namespace build2
return os.str ();
};
+ // $sort(<names> [, <flags>])
+ //
+ // Sort names in ascending order.
+ //
+ // See also type-specific overloads.
+ //
+ // The following flags are supported:
+ //
+ // dedup - in addition to sorting also remove duplicates
+ //
+ f["sort"] += [] (names v, optional<names> fs)
+ {
+ sort (v.begin (), v.end ());
+
+ if (functions_sort_flags (move (fs)))
+ v.erase (unique (v.begin(), v.end()), v.end ());
+
+ return v;
+ };
+
+ // $sort(<ints> [, <flags>])
+ //
+ // Sort integers in ascending order.
+ //
+ // The following flags are supported:
+ //
+ // dedup - in addition to sorting also remove duplicates
+ //
+ f["sort"] += [](int64s v, optional<names> fs)
+ {
+ sort (v.begin (), v.end ());
+
+ if (functions_sort_flags (move (fs)))
+ v.erase (unique (v.begin(), v.end()), v.end ());
+
+ return v;
+ };
+
+ f["sort"] += [](uint64s v, optional<names> fs)
+ {
+ sort (v.begin (), v.end ());
+
+ if (functions_sort_flags (move (fs)))
+ v.erase (unique (v.begin(), v.end()), v.end ());
+
+ return v;
+ };
+
// getenv
//
// Return NULL if the environment variable is not set, untyped value