Aegisub/libaegisub/include/libaegisub/util.h
2015-01-01 10:23:59 -08:00

71 lines
2.7 KiB
C++

// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include <algorithm>
#include <boost/range/irange.hpp>
#include <string>
struct tm;
namespace agi {
namespace util {
/// Clamp `b` to the range [`a`,`c`]
template<typename T>
static inline T mid(T a, T b, T c) {
return std::max(a, std::min(b, c));
}
bool try_parse(std::string const& str, double *out);
bool try_parse(std::string const& str, int *out);
/// strftime, but on std::string rather than a fixed buffer
/// @param fmt strftime format string
/// @param tmptr Time to format, or nullptr for current time
/// @return The strftime-formatted string
std::string strftime(const char *fmt, const tm *tmptr = nullptr);
/// Case-insensitive find with proper case folding
/// @param haystack String to search
/// @param needle String to look for
/// @return make_pair(-1,-1) if `needle` could not be found, or a range equivalent to `needle` in `haystack` if it could
///
/// `needle` and `haystack` must both be in Normalization Form D. The size
/// of the match might be different from the size of `needle`, since it's
/// based on the unfolded length.
std::pair<size_t, size_t> ifind(std::string const& haystack, std::string const& needle);
/// Set the name of the calling thread in the Visual Studio debugger
/// @param name New name for the thread
void SetThreadName(const char *name);
/// A thin wrapper around this_thread::sleep_for that uses std::thread on
/// Windows (to avoid having to compile boost.thread) and boost::thread
/// elsewhere (because libstcc++ 4.7 is missing it).
void sleep_for(int ms);
// boost.range doesn't have wrappers for the C++11 stuff
template<typename Range, typename Predicate>
bool any_of(Range&& r, Predicate&& p) {
return std::any_of(std::begin(r), std::end(r), std::forward<Predicate>(p));
}
std::string ErrorString(int error);
template<typename Integer>
auto range(Integer end) -> decltype(boost::irange<Integer>(0, end)) {
return boost::irange<Integer>(0, end);
}
} // namespace util
} // namespace agi