Extract format implementation to its own file

Split it to avoid pulling all string_utils dependencies for just
format.

1 files changed, 2 insertions, 70 deletions

diff --git a/src/string_utils.hh b/src/string_utils.hh
index 3034dfd5..24da0111 100644
--- a/src/string_utils.hh
+++ b/src/string_utils.hh
@@ -4,9 +4,10 @@
 #include "string.hh"
 #include "enum.hh"
 #include "vector.hh"
-#include "ranges.hh"
 #include "optional.hh"
 #include "utils.hh"
+#include "format.hh"
+#include "ranges.hh"
 
 namespace Kakoune
 {
@@ -107,75 +108,6 @@ inline auto wrap_at(ColumnCount max_width)
 int str_to_int(StringView str); // throws on error
 Optional<int> str_to_int_ifp(StringView str);
 
-template<size_t N>
-struct InplaceString
-{
-    static_assert(N < 256, "InplaceString cannot handle sizes >= 256");
-
-    constexpr operator StringView() const { return {m_data, ByteCount{m_length}}; }
-    operator String() const { return {m_data, ByteCount{m_length}}; }
-
-    unsigned char m_length{};
-    char m_data[N];
-};
-
-struct Hex { size_t val; };
-constexpr Hex hex(size_t val) { return {val}; }
-
-struct Grouped { size_t val; };
-constexpr Grouped grouped(size_t val) { return {val}; }
-
-InplaceString<15> to_string(int val);
-InplaceString<15> to_string(unsigned val);
-InplaceString<23> to_string(long int val);
-InplaceString<23> to_string(unsigned long val);
-InplaceString<23> to_string(long long int val);
-InplaceString<23> to_string(Hex val);
-InplaceString<23> to_string(Grouped val);
-InplaceString<23> to_string(float val);
-InplaceString<7>  to_string(Codepoint c);
-
-template<typename RealType, typename ValueType>
-decltype(auto) to_string(const StronglyTypedNumber<RealType, ValueType>& val)
-{
-    return to_string((ValueType)val);
-}
-
-namespace detail
-{
-
-template<typename T> requires std::is_convertible_v<T, StringView>
-StringView format_param(const T& val) { return val; }
-
-template<typename T> requires (not std::is_convertible_v<T, StringView>)
-decltype(auto) format_param(const T& val) { return to_string(val); }
-
-}
-
-String format(StringView fmt, ArrayView<const StringView> params);
-
-template<typename... Types>
-String format(StringView fmt, Types&&... params)
-{
-    return format(fmt, ArrayView<const StringView>{detail::format_param(std::forward<Types>(params))...});
-}
-
-StringView format_to(ArrayView<char> buffer, StringView fmt, ArrayView<const StringView> params);
-
-template<typename... Types>
-StringView format_to(ArrayView<char> buffer, StringView fmt, Types&&... params)
-{
-    return format_to(buffer, fmt, ArrayView<const StringView>{detail::format_param(std::forward<Types>(params))...});
-}
-
-void format_with(FunctionRef<void (StringView)> append, StringView fmt, ArrayView<const StringView> params);
-
-template<typename... Types>
-void format_with(FunctionRef<void (StringView)> append, StringView fmt, Types&&... params)
-{
-    return format_with(append, fmt, ArrayView<const StringView>{detail::format_param(std::forward<Types>(params))...});
-}
-
 String double_up(StringView s, StringView characters);
 
 inline String quote(StringView s)