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Diffstat (limited to 'src/mmo/extract.hpp')
| -rw-r--r-- | src/mmo/extract.hpp | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/src/mmo/extract.hpp b/src/mmo/extract.hpp deleted file mode 100644 index ed2eb78..0000000 --- a/src/mmo/extract.hpp +++ /dev/null @@ -1,231 +0,0 @@ -#pragma once -// extract.hpp - a simple, hierarchical, tokenizer -// -// Copyright © 2012-2013 Ben Longbons <b.r.longbons@gmail.com> -// -// This file is part of The Mana World (Athena server) -// -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <http://www.gnu.org/licenses/>. - -#include "fwd.hpp" - -#include <cerrno> -#include <cstdlib> - -#include <algorithm> -#include <vector> - -#include "../ints/wrap.hpp" - -#include "../strings/xstring.hpp" - -#include "../generic/enum.hpp" - -#include "utils.hpp" - - -namespace tmwa -{ -template<class T> -bool do_extract(XString str, T t); - -template<class T, typename=typename std::enable_if<std::is_integral<T>::value && !std::is_same<T, char>::value && !std::is_same<T, bool>::value>::type> -bool extract(XString str, T *iv) -{ - if (!str || str.size() > 20) - return false; - if (!((str.front() == '-' && std::is_signed<T>::value) - || ('0' <= str.front() && str.front() <= '9'))) - return false; - // needs a NUL, but can't always be given one. TODO VString? - char buf[20 + 1]; - std::copy(str.begin(), str.end(), buf); - buf[str.size()] = '\0'; - - char *end; - errno = 0; - if (std::is_signed<T>::value) - { - long long v = strtoll(buf, &end, 10); - if (errno || *end) - return false; - *iv = v; - return *iv == v; - } - else - { - unsigned long long v = strtoull(buf, &end, 10); - if (errno || *end) - return false; - *iv = v; - return *iv == v; - } -} - -inline -bool extract(XString str, TimeT *tv) -{ - return extract(str, &tv->value); -} - -template<class T, typename=typename std::enable_if<std::is_enum<T>::value>::type> -bool extract_as_int(XString str, T *iv) -{ - typedef typename underlying_type<T>::type U; - U v; - // defer to integer version - if (!extract(str, &v)) - return false; - // TODO check bounds using enum min/max as in SSCANF - *iv = static_cast<T>(v); - return true; -} - -bool extract(XString str, XString *rv); - -bool extract(XString str, AString *rv); - -template<uint8_t N> -bool extract(XString str, VString<N> *out) -{ - if (str.size() > N) - return false; - *out = str; - return true; -} - -inline -bool extract(XString str, LString exact) -{ - return str == exact; -} - -template<class T> -class LStripper -{ -public: - T impl; -}; - -template<class T> -LStripper<T> lstripping(T v) -{ - return {v}; -} - -template<class T> -bool extract(XString str, LStripper<T> out) -{ - return extract(str.lstrip(), out.impl); -} - -// basically just a std::tuple -// but it provides its data members publically -template<char split, int n, class... T> -class Record; -template<char split, int n> -class Record<split, n> -{ -}; -template<char split, int n, class F, class... R> -class Record<split, n, F, R...> -{ -public: - F frist; - Record<split, n - 1, R...> rest; -public: - Record(F f, R... r) - : frist(f), rest(r...) - {} -}; -template<char split, class... T> -Record<split, sizeof...(T), T...> record(T... t) -{ - return Record<split, sizeof...(T), T...>(t...); -} -template<char split, int n, class... T> -Record<split, n, T...> record(T... t) -{ - static_assert(0 < n && n < sizeof...(T), "don't be silly"); - return Record<split, n, T...>(t...); -} - -template<char split, int n> -bool extract(XString str, Record<split, n>) -{ - return !str; -} - -template<char split, int n, class F, class... R> -bool extract(XString str, Record<split, n, F, R...> rec) -{ - XString::iterator s = std::find(str.begin(), str.end(), split); - XString::iterator s2 = s; - if (s2 != str.end()) - ++s2; - XString head = str.xislice_h(s); - XString tail = str.xislice_t(s2); - if (s == str.end()) - return (extract(head, rec.frist) && n <= 1) - || (!head && n <= 0); - - return (extract(head, rec.frist) || n <= 0) - && extract(tail, rec.rest); -} - -template<char split, class T> -struct VRecord -{ - std::vector<T> *arr; -}; - -template<char split, class T> -VRecord<split, T> vrec(std::vector<T> *arr) -{ - return {arr}; -} - -template<char split, class T> -bool extract(XString str, VRecord<split, T> rec) -{ - if (!str) - return true; - XString::iterator s = std::find(str.begin(), str.end(), split); - rec.arr->emplace_back(); - if (s == str.end()) - return extract(str, &rec.arr->back()); - return extract(str.xislice_h(s), &rec.arr->back()) - && extract(str.xislice_t(s + 1), rec); -} - -bool extract(XString str, GlobalReg *var); - -bool extract(XString str, Item *it); - -bool extract(XString str, MapName *m); - -bool extract(XString str, CharName *out); - -template<class T> -bool do_extract(XString str, T t) -{ - return extract(str, t); -} - -template<class R> -bool extract(XString str, Wrapped<R> *w) -{ - return extract(str, &w->_value); -} -} // namespace tmwa |