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#pragma once |
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#include |
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#include |
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namespace panda { namespace protocol { namespace websocket { |
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using panda::string; |
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using panda::IteratorPair; |
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struct StringPairIterator : std::iterator { |
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StringPairIterator () : s1(global_empty), s2(global_empty), i(2) {} |
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StringPairIterator (string& str1, string& str2) : s1(str1), s2(str2), i(0) {} |
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StringPairIterator (const StringPairIterator& oth) : s1(oth.s1), s2(oth.s2), i(oth.i) {} |
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StringPairIterator& operator= (const StringPairIterator& oth) { |
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s1 = oth.s1; |
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s2 = oth.s2; |
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i = oth.i; |
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return *this; |
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} |
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bool operator== (const StringPairIterator& rhs) const { return i == rhs.i; } |
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bool operator!= (const StringPairIterator& rhs) const { return i != rhs.i; } |
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string& operator* () { return i == 0 ? s1 : s2; } |
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string* operator-> () { return i == 0 ? &s1 : &s2; } |
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StringPairIterator& operator++ () { ++i; return *this; } |
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StringPairIterator operator++ (int) { StringPairIterator tmp(*this); operator++(); return tmp; } |
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StringPairIterator& operator-- () { --i; return *this; } |
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StringPairIterator operator-- (int) { StringPairIterator tmp(*this); operator--(); return tmp; } |
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StringPairIterator operator+ (ptrdiff_t n) const { auto ret = *this; ret.i += n; return ret; } |
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StringPairIterator operator- (ptrdiff_t n) const { auto ret = *this; ret.i -= n; return ret; } |
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ptrdiff_t operator- (const StringPairIterator& rhs) const { return i - rhs.i; } |
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bool operator< (const StringPairIterator& rhs) const { return i < rhs.i; } |
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bool operator> (const StringPairIterator& rhs) const { return i > rhs.i; } |
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bool operator<= (const StringPairIterator& rhs) const { return i <= rhs.i; } |
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bool operator>= (const StringPairIterator& rhs) const { return i >= rhs.i; } |
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StringPairIterator& operator+= (ptrdiff_t n) { i += n; return *this; } |
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StringPairIterator& operator-= (ptrdiff_t n) { i -= n; return *this; } |
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string& operator[] (size_t idx) { size_t n = idx + i; return n == 0 ? s1 : s2; } |
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void swap (StringPairIterator& rhs) { std::swap(i, rhs.i); } |
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static string global_empty; |
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private: |
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string& s1; |
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string& s2; |
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ptrdiff_t i; |
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}; |
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inline StringPairIterator operator+ (ptrdiff_t n, const StringPairIterator& rhs) { auto ret = rhs; ret += n; return ret; } |
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typedef IteratorPair StringPairIteratorPair; |
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inline StringPairIteratorPair make_iterator_pair (string& str1, string& str2) { |
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return StringPairIteratorPair(StringPairIterator(str1, str2), StringPairIterator()); |
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} |
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struct StringPair : StringPairIteratorPair { |
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StringPair(string s1, string s2) |
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: StringPairIteratorPair(StringPairIterator(str1, str2), StringPairIterator()) |
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, str1(s1) |
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, str2(s2) |
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{} |
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private: |
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string str1; |
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string str2; |
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}; |
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inline StringPair make_string_pair (const string& str1, const string& str2) { |
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return StringPair(str1, str2); |
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} |
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template |
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struct StringChainIterator : std::iterator { |
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StringChainIterator (It last, ptrdiff_t n) : s(StringPairIterator::global_empty), it(last), i(n+1) {} |
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StringChainIterator (string& str, It first) : s(str), it(first), i(0) {} |
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StringChainIterator (const StringChainIterator& oth) : s(oth.s), it(oth.it), i(oth.i) {} |
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StringChainIterator& operator= (const StringChainIterator& oth) { |
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s = oth.s; |
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it = oth.it; |
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i = oth.i; |
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return *this; |
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} |
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template |
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bool operator== (const StringChainIterator& rhs) const { return i == rhs.i; } |
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template |
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bool operator!= (const StringChainIterator& rhs) const { return i != rhs.i; } |
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string& operator* () { return i == 0 ? s : it[i-1]; } |
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string* operator-> () { return i == 0 ? &s : &it[i-1]; } |
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StringChainIterator& operator++ () { ++i; return *this; } |
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StringChainIterator operator++ (int) { StringChainIterator tmp(*this); operator++(); return tmp; } |
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StringChainIterator& operator-- () { --i; return *this; } |
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StringChainIterator operator-- (int) { StringChainIterator tmp(*this); operator--(); return tmp; } |
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StringChainIterator operator+ (ptrdiff_t n) const { auto ret = *this; ret.i += n; return ret; } |
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StringChainIterator operator- (ptrdiff_t n) const { auto ret = *this; ret.i -= n; return ret; } |
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ptrdiff_t operator- (const StringChainIterator& rhs) const { return i - rhs.i; } |
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bool operator< (const StringChainIterator& rhs) const { return i < rhs.i; } |
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bool operator> (const StringChainIterator& rhs) const { return i > rhs.i; } |
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bool operator<= (const StringChainIterator& rhs) const { return i <= rhs.i; } |
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bool operator>= (const StringChainIterator& rhs) const { return i >= rhs.i; } |
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StringChainIterator& operator+= (ptrdiff_t n) { i += n; return *this; } |
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StringChainIterator& operator-= (ptrdiff_t n) { i -= n; return *this; } |
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string& operator[] (size_t idx) { size_t n = idx + i; return n == 0 ? s : it[n-1]; } |
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void swap (StringChainIterator& rhs) { std::swap(i, rhs.i); } |
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private: |
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string& s; |
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It it; |
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ptrdiff_t i; |
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}; |
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template |
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inline StringChainIterator operator+ (ptrdiff_t n, const StringChainIterator& rhs) { auto ret = rhs; ret += n; return ret; } |
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template |
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using StringChainIteratorPair = IteratorPair, StringChainIterator>; |
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template |
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inline StringChainIteratorPair make_iterator_pair (string& str, Begin first, End last) { |
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return StringChainIteratorPair(StringChainIterator(str, first), StringChainIterator(last, last - first)); |
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} |
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template |
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struct StringChain : StringChainIteratorPair { |
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StringChain(const string& s, Begin begin, End end) |
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: StringChainIteratorPair(StringChainIterator(str, begin), StringChainIterator(end, end - begin)) |
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, str(s) |
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{} |
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private: |
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string str; |
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}; |
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template |
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inline StringChain make_string_pair (const string& str, Begin begin, End end) { |
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return StringChain(str, begin, end); |
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} |
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}}} |