Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 123]

▼Nsimstr	Library namespace
▼Cchunked_string_builder	For constructing long dynamic strings by concatenating small pieces
Cportion_store	An object that allows you to sequentially copy content into a buffer of a given size
Cconvert_to_strexpr< K, const T * >	A template specialization for converting pointers to string expressions, allowing their use in concatenation operations with string expressions
Cconvert_to_strexpr< K, expr_hex_src< Val, All, Ucase, Ox > >	A template specialization for converting e_hex to string expressions, allowing their use in concatenation operations with string expressions
Cconvert_to_strexpr< K, T >	A template specialization for converting standard strings to string expressions, allowing their use in concatenation operations with string expressions
Ce_ascii_lower	Generate a string based on the original one, replacing all ASCII uppercase letters (A-Z) with lowercase ones
Ce_ascii_upper	Generate a string based on the original one, replacing all ASCII lowercase letters (a-z) with uppercase ones
Ce_concat	String expression concatenating the specified string expressions using the specified delimiter
Ce_lower
Ce_subst	String expression that substitutes the values of the passed string expressions into the specified places in a string literal
Ce_upper	Generates a string based on the original one, replacing all lowercase letters of the first Unicode plane with uppercase ones
Ce_vsubst	String expression that substitutes the values of the passed string expressions into the specified positions in the pattern string, specified at runtime
Cempty_expr	An "empty" string expression
Cexpr_choice	Conditional selection string expression
Cexpr_choice_one_lit	Conditional selection string expression
Cexpr_choice_two_lit	Conditional selection string expression
Cexpr_if	Conditional selection string expression
Cexpr_pad	A type of string expression that returns N specified characters
Cexpr_replace_symbols	A type for a string expression that generates a string in which the given characters are replaced by the given strings
Cexpr_replaced	A string expression that generates a string replacing all occurrences of the given substring to another string
Cexpr_replaced_e	A string expression that generates a string replacing all occurrences of the given substring to string expression
Cexpr_spaces	A type of string expression that returns N specified characters
Cexpr_stdstr	A type for using std::basic_string and std::basic_string_view as sources in string expressions
Cexpr_to_std_string	Base class for converting string expressions to standard strings
Cexpr_utf	String expression to convert strings to different UTF types
Cfrom_utf_convertible	Base class for strings that can be converted from another character type
ChashStrMap	Container for more efficient searching by string keys
Clstring	The mutable, owning string class. Contains an internal buffer for text of a given size
Csimple_str	The simplest immutable non-owning string class
Csimple_str_nt	A class that claims to refer to a null-terminated string
CSplitterBase	Class for sequentially obtaining substrings by a given delimiter
Csstring	Immutable owning string class
Cstr_algs	A class with additional constant string algorithms
Cstr_mutable	Base class for working with mutable strings
Cstr_src	The simplest class of an immutable non-owning string
Cstr_src_algs	A class with basic constant string algorithms
Cstr_src_nt	A class that claims to refer to a null-terminated string
Cstr_storable	The base for the objects that own the string
Cstrexprjoin	Template class for concatenating two string expressions into one using `operator +`
Cstrexprjoin_c	Concatenation of a reference to a string expression and the value of the string expression
▼Nstd	Some methods for working with standard strings
Cformatter< simstr::lstring< char8_t, N, S, A >, char >	Formatter to use in std::format for values of type lstring<char8_t>
Cformatter< simstr::lstring< K, N, S, A >, K >	Formatter to use in std::format for values of type lstring
Cformatter< simstr::lstring< simstr::wchar_type, N, S, A >, wchar_t >	Formatter to use in std::format for values of type lstring<char16_t/char32_t>
Cformatter< simstr::simple_str< char8_t >, char >	Formatter to use in std::format for values of type simple_str<char8_t>
Cformatter< simstr::simple_str< K >, K >	Formatter to use in std::format for values of type simple_str
Cformatter< simstr::simple_str< simstr::wchar_type >, wchar_t >	Formatter to use in std::format for values of type simple_str<char16_t/char32_t>
Cformatter< simstr::simple_str_nt< char8_t >, char >	Formatter to use in std::format for values of type simple_str_nt<char8_t>
Cformatter< simstr::simple_str_nt< K >, K >	Formatter to use in std::format for values of type simple_str_nt
Cformatter< simstr::simple_str_nt< simstr::wchar_type >, wchar_t >	Formatter to use in std::format for values of type simple_str_nt<char16_t/char32_t>
Cformatter< simstr::sstring< char8_t >, char >	Formatter to use in std::format for values of type string<char8_t>
Cformatter< simstr::sstring< K >, K >	Formatter to use in std::format for values of type string
Cformatter< simstr::sstring< simstr::wchar_type >, wchar_t >	Formatter to use in std::format for values of type string<char16_t/char32_t>