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-rw-r--r--libcxx/include/__format/formatter.h227
1 files changed, 0 insertions, 227 deletions
diff --git a/libcxx/include/__format/formatter.h b/libcxx/include/__format/formatter.h
index c39e25b354eb..4816f961c445 100644
--- a/libcxx/include/__format/formatter.h
+++ b/libcxx/include/__format/formatter.h
@@ -10,20 +10,10 @@
#ifndef _LIBCPP___FORMAT_FORMATTER_H
#define _LIBCPP___FORMAT_FORMATTER_H
-#include <__algorithm/copy.h>
-#include <__algorithm/fill_n.h>
-#include <__algorithm/transform.h>
-#include <__assert>
#include <__availability>
#include <__concepts/same_as.h>
#include <__config>
-#include <__format/format_error.h>
#include <__format/format_fwd.h>
-#include <__format/format_string.h>
-#include <__format/parser_std_format_spec.h>
-#include <__utility/move.h>
-#include <__utility/unreachable.h>
-#include <string_view>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
@@ -49,229 +39,12 @@ struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter {
formatter& operator=(const formatter&) = delete;
};
-namespace __format_spec {
-
-_LIBCPP_HIDE_FROM_ABI inline char* __insert_sign(char* __buf, bool __negative,
- _Flags::_Sign __sign) {
- if (__negative)
- *__buf++ = '-';
- else
- switch (__sign) {
- case _Flags::_Sign::__default:
- case _Flags::_Sign::__minus:
- // No sign added.
- break;
- case _Flags::_Sign::__plus:
- *__buf++ = '+';
- break;
- case _Flags::_Sign::__space:
- *__buf++ = ' ';
- break;
- }
-
- return __buf;
-}
-
-_LIBCPP_HIDE_FROM_ABI constexpr char __hex_to_upper(char c) {
- switch (c) {
- case 'a':
- return 'A';
- case 'b':
- return 'B';
- case 'c':
- return 'C';
- case 'd':
- return 'D';
- case 'e':
- return 'E';
- case 'f':
- return 'F';
- }
- return c;
-}
-
-} // namespace __format_spec
-
namespace __formatter {
/** The character types that formatters are specialized for. */
template <class _CharT>
concept __char_type = same_as<_CharT, char> || same_as<_CharT, wchar_t>;
-struct _LIBCPP_TEMPLATE_VIS __padding_size_result {
- size_t __before;
- size_t __after;
-};
-
-_LIBCPP_HIDE_FROM_ABI constexpr __padding_size_result
-__padding_size(size_t __size, size_t __width,
- __format_spec::_Flags::_Alignment __align) {
- _LIBCPP_ASSERT(__width > __size,
- "Don't call this function when no padding is required");
- _LIBCPP_ASSERT(
- __align != __format_spec::_Flags::_Alignment::__default,
- "Caller should adjust the default to the value required by the type");
-
- size_t __fill = __width - __size;
- switch (__align) {
- case __format_spec::_Flags::_Alignment::__default:
- __libcpp_unreachable();
-
- case __format_spec::_Flags::_Alignment::__left:
- return {0, __fill};
-
- case __format_spec::_Flags::_Alignment::__center: {
- // The extra padding is divided per [format.string.std]/3
- // __before = floor(__fill, 2);
- // __after = ceil(__fill, 2);
- size_t __before = __fill / 2;
- size_t __after = __fill - __before;
- return {__before, __after};
- }
- case __format_spec::_Flags::_Alignment::__right:
- return {__fill, 0};
- }
- __libcpp_unreachable();
-}
-
-/**
- * Writes the input to the output with the required padding.
- *
- * Since the output column width is specified the function can be used for
- * ASCII and Unicode input.
- *
- * @pre [@a __first, @a __last) is a valid range.
- * @pre @a __size <= @a __width. Using this function when this pre-condition
- * doesn't hold incurs an unwanted overhead.
- *
- * @param __out_it The output iterator to write to.
- * @param __first Pointer to the first element to write.
- * @param __last Pointer beyond the last element to write.
- * @param __size The (estimated) output column width. When the elements
- * to be written are ASCII the following condition holds
- * @a __size == @a __last - @a __first.
- * @param __width The number of output columns to write.
- * @param __fill The character used for the alignment of the output.
- * TODO FMT Will probably change to support Unicode grapheme
- * cluster.
- * @param __alignment The requested alignment.
- *
- * @returns An iterator pointing beyond the last element written.
- *
- * @note The type of the elements in range [@a __first, @a __last) can differ
- * from the type of @a __fill. Integer output uses @c std::to_chars for its
- * conversion, which means the [@a __first, @a __last) always contains elements
- * of the type @c char.
- */
-template <class _CharT, class _Fill>
-_LIBCPP_HIDE_FROM_ABI auto
-__write(output_iterator<const _CharT&> auto __out_it, const _CharT* __first,
- const _CharT* __last, size_t __size, size_t __width, _Fill __fill,
- __format_spec::_Flags::_Alignment __alignment) -> decltype(__out_it) {
-
- _LIBCPP_ASSERT(__first <= __last, "Not a valid range");
- _LIBCPP_ASSERT(__size < __width, "Precondition failure");
-
- __padding_size_result __padding =
- __padding_size(__size, __width, __alignment);
- __out_it = _VSTD::fill_n(_VSTD::move(__out_it), __padding.__before, __fill);
- __out_it = _VSTD::copy(__first, __last, _VSTD::move(__out_it));
- return _VSTD::fill_n(_VSTD::move(__out_it), __padding.__after, __fill);
-}
-
-/**
- * @overload
- *
- * Writes additional zero's for the precision before the exponent.
- * This is used when the precision requested in the format string is larger
- * than the maximum precision of the floating-point type. These precision
- * digits are always 0.
- *
- * @param __exponent The location of the exponent character.
- * @param __num_trailing_zeros The number of 0's to write before the exponent
- * character.
- */
-template <class _CharT, class _Fill>
-_LIBCPP_HIDE_FROM_ABI auto __write(output_iterator<const _CharT&> auto __out_it, const _CharT* __first,
- const _CharT* __last, size_t __size, size_t __width, _Fill __fill,
- __format_spec::_Flags::_Alignment __alignment, const _CharT* __exponent,
- size_t __num_trailing_zeros) -> decltype(__out_it) {
- _LIBCPP_ASSERT(__first <= __last, "Not a valid range");
- _LIBCPP_ASSERT(__num_trailing_zeros > 0, "The overload not writing trailing zeros should have been used");
-
- __padding_size_result __padding = __padding_size(__size + __num_trailing_zeros, __width, __alignment);
- __out_it = _VSTD::fill_n(_VSTD::move(__out_it), __padding.__before, __fill);
- __out_it = _VSTD::copy(__first, __exponent, _VSTD::move(__out_it));
- __out_it = _VSTD::fill_n(_VSTD::move(__out_it), __num_trailing_zeros, _CharT('0'));
- __out_it = _VSTD::copy(__exponent, __last, _VSTD::move(__out_it));
- return _VSTD::fill_n(_VSTD::move(__out_it), __padding.__after, __fill);
-}
-
-/**
- * @overload
- *
- * Uses a transformation operation before writing an element.
- *
- * TODO FMT Fill will probably change to support Unicode grapheme cluster.
- */
-template <class _CharT, class _UnaryOperation, class _Fill>
-_LIBCPP_HIDE_FROM_ABI auto
-__write(output_iterator<const _CharT&> auto __out_it, const _CharT* __first,
- const _CharT* __last, size_t __size, _UnaryOperation __op,
- size_t __width, _Fill __fill,
- __format_spec::_Flags::_Alignment __alignment) -> decltype(__out_it) {
-
- _LIBCPP_ASSERT(__first <= __last, "Not a valid range");
- _LIBCPP_ASSERT(__size < __width, "Precondition failure");
-
- __padding_size_result __padding =
- __padding_size(__size, __width, __alignment);
- __out_it = _VSTD::fill_n(_VSTD::move(__out_it), __padding.__before, __fill);
- __out_it = _VSTD::transform(__first, __last, _VSTD::move(__out_it), __op);
- return _VSTD::fill_n(_VSTD::move(__out_it), __padding.__after, __fill);
-}
-
-/**
- * Writes Unicode input to the output with the required padding.
- *
- * This function does almost the same as the @ref __write function, but handles
- * the width estimation of the Unicode input.
- *
- * @param __str The range [@a __first, @a __last).
- * @param __precision The width to truncate the input string to, use @c -1 for
- * no limit.
- */
-template <class _CharT, class _Fill>
-_LIBCPP_HIDE_FROM_ABI auto
-__write_unicode(output_iterator<const _CharT&> auto __out_it,
- basic_string_view<_CharT> __str, ptrdiff_t __width,
- ptrdiff_t __precision, _Fill __fill,
- __format_spec::_Flags::_Alignment __alignment)
- -> decltype(__out_it) {
-
- // This value changes when there Unicode column width limits the output
- // size.
- auto __last = __str.end();
- if (__width != 0 || __precision != -1) {
- __format_spec::__string_alignment<_CharT> __format_traits =
- __format_spec::__get_string_alignment(__str.begin(), __str.end(),
- __width, __precision);
-
- if (__format_traits.__align)
- return __write(_VSTD::move(__out_it), __str.begin(),
- __format_traits.__last, __format_traits.__size, __width,
- __fill, __alignment);
-
- // No alignment required update the output based on the precision.
- // This might be the same as __str.end().
- __last = __format_traits.__last;
- }
-
- // Copy the input to the output. The output size might be limited by the
- // precision.
- return _VSTD::copy(__str.begin(), __last, _VSTD::move(__out_it));
-}
-
} // namespace __formatter
#endif //_LIBCPP_STD_VER > 17