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// file : build2/functions-path.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <build2/function>
#include <build2/variable>
using namespace std;
namespace build2
{
static value
path_thunk (vector_view<value> args, const function_overload& f)
try
{
return function_family::default_thunk (move (args), f);
}
catch (const invalid_path& e)
{
fail << "invalid path: '" << e.path << "'" << endf;
}
static value
concat_path_string (path l, string sr)
{
if (path::traits::is_separator (sr[0])) // '\0' if empty.
{
sr.erase (0, 1);
path pr (move (sr));
pr.canonicalize (); // Convert to canonical directory separators.
// If RHS is syntactically a directory (ends with a trailing slash),
// then return it as dir_path, not path.
//
if (pr.to_directory () || pr.empty ())
return value (
path_cast<dir_path> (move (l)) /= path_cast<dir_path> (move (pr)));
else
l /= pr;
}
else
l += sr;
return value (move (l));
}
static value
concat_dir_path_string (dir_path l, string sr)
{
if (path::traits::is_separator (sr[0])) // '\0' if empty.
{
sr.erase (0, 1);
path pr (move (sr));
pr.canonicalize (); // Convert to canonical directory separators.
// If RHS is syntactically a directory (ends with a trailing slash),
// then return it as dir_path, not path.
//
if (pr.to_directory () || pr.empty ())
l /= path_cast<dir_path> (move (pr));
else
return value (path_cast<path> (move (l)) /= pr);
}
else
l += sr;
return value (move (l));
}
void
path_functions ()
{
function_family f ("path", &path_thunk);
// string
//
f["string"] = [](path p) {return move (p).string ();};
f["string"] = [](dir_path p) {return move (p).string ();};
f["string"] = [](paths v)
{
strings r;
for (auto& p: v)
r.push_back (move (p).string ());
return r;
};
f["string"] = [](dir_paths v)
{
strings r;
for (auto& p: v)
r.push_back (move (p).string ());
return r;
};
// normalize
//
f["normalize"] = [](path p) {p.normalize (); return p;};
f["normalize"] = [](dir_path p) {p.normalize (); return p;};
f["normalize"] = [](paths v) {for (auto& p: v) p.normalize (); return v;};
f["normalize"] = [](dir_paths v) {for (auto& p: v) p.normalize (); return v;};
f[".normalize"] = [](names ns)
{
// For each path decide based on the presence of a trailing slash
// whether it is a directory. Return as untyped list of (potentially
// mixed) paths.
//
for (name& n: ns)
{
if (n.directory ())
n.dir.normalize ();
else
n.value = convert<path> (move (n)).normalize ().string ();
}
return ns;
};
// Path-specific overloads from builtins.
//
function_family b ("builtin", &path_thunk);
b[".concat"] = &concat_path_string;
b[".concat"] = &concat_dir_path_string;
b[".concat"] = [](path l, names ur)
{
return concat_path_string (move (l), convert<string> (move (ur)));
};
b[".concat"] = [](dir_path l, names ur)
{
return concat_dir_path_string (move (l), convert<string> (move (ur)));
};
}
}
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