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// file : libbutl/project-name.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#ifndef __cpp_modules
#include <libbutl/project-name.mxx>
#endif
#ifndef __cpp_lib_modules
#include <string>
#include <vector>
#include <utility> // move()
#include <iterator> // back_inserter
#include <algorithm> // find(), transform()
#include <stdexcept> // invalid_argument
#endif
// Other includes.
#ifdef __cpp_modules
module butl.project_name;
// Only imports additional to interface.
#ifdef __clang__
#ifdef __cpp_lib_modules
import std.core;
import std.io;
#endif
import butl.utility;
#endif
import butl.path; // path::traits
import butl.utility; // alpha(), alnum()
#else
#include <libbutl/path.mxx>
#include <libbutl/utility.mxx>
#endif
using namespace std;
namespace butl
{
// project_name
//
static const vector<string> illegal_prj_names ({
"build",
"con", "prn", "aux", "nul",
"com1", "com2", "com3", "com4", "com5", "com6", "com7", "com8", "com9",
"lpt1", "lpt2", "lpt3", "lpt4", "lpt5", "lpt6", "lpt7", "lpt8", "lpt9"});
static const string legal_prj_chars ("_+-.");
project_name::
project_name (std::string&& nm)
{
if (nm.size () < 2)
throw invalid_argument ("length is less than two characters");
if (find (illegal_prj_names.begin (), illegal_prj_names.end (), nm) !=
illegal_prj_names.end ())
throw invalid_argument ("illegal name");
if (!alpha (nm.front ()))
throw invalid_argument ("illegal first character (must be alphabetic)");
// Here we rely on the fact that the name length >= 2.
//
for (auto i (nm.cbegin () + 1), e (nm.cend () - 1); i != e; ++i)
{
char c (*i);
if (!(alnum(c) || legal_prj_chars.find (c) != string::npos))
throw invalid_argument ("illegal character");
}
if (!alnum (nm.back ()) && nm.back () != '+')
throw invalid_argument (
"illegal last character (must be alphabetic, digit, or plus)");
value_ = move (nm);
}
string project_name::
base (const char* e) const
{
using std::string;
size_t p (path::traits::find_extension (value_));
if (e != nullptr &&
p != string::npos &&
casecmp (value_.c_str () + p + 1, e) != 0)
p = string::npos;
return string (value_, 0, p);
}
string project_name::
extension () const
{
using std::string;
size_t p (path::traits::find_extension (value_));
return p != string::npos ? string (value_, p + 1) : string ();
}
string project_name::
variable () const
{
using std::string;
auto sanitize = [] (char c)
{
return (c == '-' || c == '+' || c == '.') ? '_' : c;
};
string r;
transform (value_.begin (), value_.end (), back_inserter (r), sanitize);
return r;
}
}
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