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#pragma once
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#include <functional>
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#include <set>
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#include <string>
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class ScopeGuard {
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public:
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std::function<void()> on_exit;
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~ScopeGuard();
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};
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/// Returns number of utf8 characters in text
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size_t utf8_character_count(const std::string &text, size_t pos = 0, size_t length = std::string::npos) noexcept;
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/// Returns number of bytes in the given utf16 code units in text
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size_t utf16_code_units_byte_count(const std::string &text, size_t code_units, size_t start_pos = 0);
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/// Returns number of utf16 code units in the text
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size_t utf16_code_unit_count(const std::string &text, size_t pos = 0, size_t length = std::string::npos);
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bool starts_with(const char *str, const std::string &test) noexcept;
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bool starts_with(const char *str, const char *test) noexcept;
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bool starts_with(const std::string &str, const std::string &test) noexcept;
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bool starts_with(const std::string &str, const char *test) noexcept;
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/// Comparison starts from position pos in str
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bool starts_with(const std::string &str, size_t pos, const std::string &test) noexcept;
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/// Comparison starts from position pos in str
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bool starts_with(const std::string &str, size_t pos, const char *test) noexcept;
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bool ends_with(const std::string &str, const std::string &test) noexcept;
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bool ends_with(const std::string &str, const char *test) noexcept;
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std::string escape(const std::string &input, const std::set<char> &escape_chars);
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std::string to_hex_string(const std::string &input);
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/// Returns -1 if lhs is smaller than rhs, 0 if equal, and 1 if lhs is larger than rhs
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int version_compare(const std::string &lhs, const std::string &rhs);
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