124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
#ifndef STAR_STRING_VIEW_HPP
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#define STAR_STRING_VIEW_HPP
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#include "StarString.hpp"
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namespace Star {
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STAR_CLASS(StringView);
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STAR_CLASS(String);
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// This is a StringView version of Star::String
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// I literally just copy-pasted it all from there
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class StringView {
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public:
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typedef String::Char Char;
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typedef U8ToU32Iterator<std::string_view::const_iterator> const_iterator;
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typedef Char value_type;
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typedef value_type const& const_reference;
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using CaseSensitivity = String::CaseSensitivity;
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StringView();
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StringView(StringView const& s);
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StringView(StringView&& s) noexcept;
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StringView(String const& s);
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// These assume utf8 input
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StringView(char const* s);
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StringView(char const* s, size_t n);
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StringView(std::string_view const& s);
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StringView(std::string_view&& s) noexcept;
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StringView(std::string const& s);
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StringView(Char const* s);
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StringView(Char const* s, size_t n);
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// const& to internal utf8 data
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std::string_view const& utf8() const;
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std::string_view takeUtf8();
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ByteArray utf8Bytes() const;
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// Pointer to internal utf8 data, null-terminated.
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char const* utf8Ptr() const;
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size_t utf8Size() const;
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const_iterator begin() const;
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const_iterator end() const;
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size_t size() const;
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size_t length() const;
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bool empty() const;
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Char operator[](size_t index) const;
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// Throws StringException if i out of range.
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Char at(size_t i) const;
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bool endsWith(StringView end, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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bool endsWith(Char end, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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bool beginsWith(StringView beg, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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bool beginsWith(Char beg, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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typedef function<void(StringView, size_t, size_t)> SplitCallback;
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void forEachSplitAnyView(StringView pattern, SplitCallback) const;
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void forEachSplitView(StringView pattern, SplitCallback) const;
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bool hasChar(Char c) const;
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// Identical to hasChar, except, if string is empty, tests if c is
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// whitespace.
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bool hasCharOrWhitespace(Char c) const;
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size_t find(Char c, size_t beg = 0, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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size_t find(StringView s, size_t beg = 0, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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size_t findLast(Char c, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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size_t findLast(StringView s, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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// If pattern is empty, finds first whitespace
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size_t findFirstOf(StringView chars = "", size_t beg = 0) const;
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// If pattern is empty, finds first non-whitespace
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size_t findFirstNotOf(StringView chars = "", size_t beg = 0) const;
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// finds the the start of the next 'boundary' in a string. used for quickly
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// scanning a string
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size_t findNextBoundary(size_t index, bool backwards = false) const;
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bool contains(StringView s, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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int compare(StringView s, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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bool equals(StringView s, CaseSensitivity cs = CaseSensitivity::CaseSensitive) const;
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// Synonym for equals(s, String::CaseInsensitive)
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bool equalsIgnoreCase(StringView s) const;
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StringView substr(size_t position, size_t n = NPos) const;
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StringView& operator=(StringView s);
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friend bool operator==(StringView s1, const char* s2);
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friend bool operator==(StringView s1, std::string const& s2);
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friend bool operator==(StringView s1, String const& s2);
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friend bool operator==(StringView s1, StringView s2);
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friend bool operator!=(StringView s1, StringView s2);
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friend bool operator<(StringView s1, StringView s2);
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friend std::ostream& operator<<(std::ostream& os, StringView const& s);
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private:
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int compare(size_t selfOffset,
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size_t selfLen,
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StringView other,
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size_t otherOffset,
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size_t otherLen,
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CaseSensitivity cs) const;
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std::string_view m_view;
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};
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}
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template <> struct fmt::formatter<Star::StringView> : formatter<std::string_view> {
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fmt::appender format(Star::StringView const& s, format_context& ctx) const;
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};
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#endif |