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fixup! ircd::fmt: Cleanup grammar; fixes; support std::exception type to %s.

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This commit is contained in:
Jason Volk 2017-04-06 18:11:09 -07:00
parent 5b40a9ad91
commit 39ab4d1c68
2 changed files with 18 additions and 17 deletions
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10
include/ircd/fmt.h
View file

@ -49,7 +49,7 @@ using arg = std::tuple<const void *, std::type_index>;
struct spec
{
char sign {'+'};
int width {0};
ushort width {0};
string_view name;
spec() = default;
@ -59,17 +59,17 @@ struct spec
// This allows a new "%foo" to be defined with custom handling.
class specifier
{
std::set<string_view> names;
std::set<std::string> names;
public:
virtual bool operator()(char *&out, const size_t &max, const spec &, const arg &) const = 0;
specifier(const std::initializer_list<string_view> &names);
specifier(const string_view &name);
specifier(const std::initializer_list<std::string> &names);
specifier(const std::string &name);
virtual ~specifier() noexcept;
};
const std::map<string_view, specifier *> &specifiers();
const std::map<string_view, specifier *, std::less<>> &specifiers();
//
// User API

25
ircd/fmt.cc
View file

@ -39,6 +39,7 @@ namespace karma = boost::spirit::karma;
using qi::lit;
using qi::char_;
using qi::ushort_;
using qi::int_;
using qi::eps;
using qi::raw;
@ -46,7 +47,7 @@ using qi::repeat;
using qi::omit;
using qi::unused_type;
std::map<string_view, specifier *> _specifiers;
std::map<string_view, specifier *, std::less<>> _specifiers;
bool is_specifier(const string_view &name);
void handle_specifier(char *&out, const size_t &max, const uint &idx, const spec &, const arg &);
@ -77,7 +78,7 @@ struct parser
valid = is_specifier(str);
});
spec %= specsym >> -char_("+-") >> -int_ >> name[is_valid] >> -specterm;
spec %= specsym >> -(char_('+') | char_('-')) >> -ushort_ >> name[is_valid] >> -specterm;
}
}
const parser;
@ -99,7 +100,7 @@ struct string_specifier
}
const string_specifier
{
"s"
"s"s
};
decltype(string_specifier::types)
@ -124,7 +125,7 @@ struct bool_specifier
}
const bool_specifier
{
{ "b" }
{ "b"s }
};
decltype(bool_specifier::types)
@ -149,7 +150,7 @@ struct signed_specifier
}
const signed_specifier
{
{ "d", "ld", "zd" }
{ "d"s, "ld"s, "zd"s }
};
decltype(signed_specifier::types)
@ -174,7 +175,7 @@ struct unsigned_specifier
}
const unsigned_specifier
{
{ "u", "lu", "zu" }
{ "u"s, "lu"s, "zu"s }
};
decltype(unsigned_specifier::types)
@ -199,7 +200,7 @@ struct float_specifier
}
const float_specifier
{
{ "f", "lf" }
{ "f"s, "lf"s }
};
decltype(float_specifier::types)
@ -214,7 +215,7 @@ struct char_specifier
}
const char_specifier
{
"c"
"c"s
};
struct pointer_specifier
@ -225,7 +226,7 @@ struct pointer_specifier
}
const pointer_specifier
{
"p"
"p"s
};
} // namespace fmt
@ -285,7 +286,7 @@ fmt::snprintf::argument(const arg &val)
handle_specifier(out, remaining(), idx++, spec, val);
fstop = fstart;
if(fstop < fend)
if(fstart < fend)
{
fstart = strchr(fstart, SPECIFIER);
append(fstop, fstart?: fend);
@ -310,12 +311,12 @@ fmt::specifiers()
return _specifiers;
}
fmt::specifier::specifier(const string_view &name)
fmt::specifier::specifier(const std::string &name)
:specifier{{name}}
{
}
fmt::specifier::specifier(const std::initializer_list<string_view> &names)
fmt::specifier::specifier(const std::initializer_list<std::string> &names)
:names{names}
{
for(const auto &name : this->names)