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// file : mod/types-parsers.cxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#include <mod/types-parsers.hxx>
#include <sstream>
#include <libbutl/regex.hxx>
#include <libbutl/timestamp.hxx> // from_string()
#include <mod/module-options.hxx>
using namespace std;
using namespace butl;
using namespace bpkg;
using namespace web::xhtml;
namespace brep
{
namespace cli
{
// Parse path.
//
template <typename T>
static void
parse_path (T& x, scanner& s)
{
const char* o (s.next ());
if (!s.more ())
throw missing_value (o);
const char* v (s.next ());
try
{
x = T (v);
}
catch (const invalid_path&)
{
throw invalid_value (o, v);
}
}
void parser<path>::
parse (path& x, bool& xs, scanner& s)
{
xs = true;
parse_path (x, s);
}
void parser<dir_path>::
parse (dir_path& x, bool& xs, scanner& s)
{
xs = true;
parse_path (x, s);
}
// Parse time of day.
//
void parser<duration>::
parse (duration& x, bool& xs, scanner& s)
{
xs = true;
const char* o (s.next ());
if (!s.more ())
throw missing_value (o);
const char* v (s.next ());
// To avoid the manual time of day parsing and validation, let's parse
// it as the first Epoch day time and convert the result (timestamp) to
// the time elapsed since Epoch (duration).
//
try
{
string t ("1970-01-01 ");
t += v;
x = from_string (t.c_str (),
"%Y-%m-%d %H:%M",
false /* local */).time_since_epoch ();
return;
}
catch (const invalid_argument&) {}
catch (const system_error&) {}
throw invalid_value (o, v);
}
// Parse repository_location.
//
void parser<repository_location>::
parse (repository_location& x, bool& xs, scanner& s)
{
xs = true;
const char* o (s.next ());
if (!s.more ())
throw missing_value (o);
const char* v (s.next ());
try
{
x = repository_location (v);
}
catch (const invalid_argument&)
{
throw invalid_value (o, v);
}
}
// Parse page_form.
//
void parser<page_form>::
parse (page_form& x, bool& xs, scanner& s)
{
xs = true;
const char* o (s.next ());
if (!s.more ())
throw missing_value (o);
const string v (s.next ());
if (v == "full")
x = page_form::full;
else if (v == "brief")
x = page_form::brief;
else
throw invalid_value (o, v);
}
// Parse page_menu.
//
void parser<page_menu>::
parse (page_menu& x, bool& xs, scanner& s)
{
xs = true;
const char* o (s.next ());
if (!s.more ())
throw missing_value (o);
const string v (s.next ());
auto p (v.find ('='));
if (p != string::npos)
{
string label (v, 0, p);
string link (v, p + 1);
if (!label.empty ())
{
x = page_menu (move (label), move (link));
return;
}
}
throw invalid_value (o, v);
}
// Parse web::xhtml::fragment.
//
void parser<fragment>::
parse (fragment& x, bool& xs, scanner& s)
{
xs = true;
const char* o (s.next ());
if (!s.more ())
throw missing_value (o);
const char* v (s.next ());
try
{
x = fragment (v, o);
}
catch (const xml::parsing&)
{
throw invalid_value (o, v);
}
}
// Parse the '/regex/replacement/' string into the regex/replacement pair.
//
void parser<pair<std::regex, string>>::
parse (pair<std::regex, string>& x, bool& xs, scanner& s)
{
xs = true;
const char* o (s.next ());
if (!s.more ())
throw missing_value (o);
const char* v (s.next ());
try
{
x = regex_replace_parse (v);
}
catch (const invalid_argument& e)
{
throw invalid_value (o, v, e.what ());
}
catch (const regex_error& e)
{
// Sanitize the description.
//
ostringstream os;
os << e;
throw invalid_value (o, v, os.str ());
}
}
}
}
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