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//===-- Format specifier converter implmentation for printf -----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/stdio/printf_core/converter.h"
#include "src/stdio/printf_core/core_structs.h"
#include "src/stdio/printf_core/writer.h"
// This option allows for replacing all of the conversion functions with custom
// replacements. This allows conversions to be replaced at compile time.
#ifndef LIBC_COPT_PRINTF_CONV_ATLAS
#include "src/stdio/printf_core/converter_atlas.h"
#else
#include LIBC_COPT_PRINTF_CONV_ATLAS
#endif
#include <stddef.h>
namespace __llvm_libc {
namespace printf_core {
int convert(Writer *writer, const FormatSection &to_conv) {
if (!to_conv.has_conv)
return writer->write(to_conv.raw_string);
#ifndef LIBC_COPT_PRINTF_DISABLE_FLOAT
// TODO(michaelrj): Undo this once decimal long double support is done.
if (to_conv.length_modifier == LengthModifier::L) {
switch (to_conv.conv_name) {
case 'f':
case 'F':
case 'e':
case 'E':
case 'g':
case 'G':
return convert_float_hex_exp(writer, to_conv);
default:
break;
}
}
#endif // LIBC_COPT_PRINTF_DISABLE_FLOAT
switch (to_conv.conv_name) {
case '%':
return writer->write("%");
case 'c':
return convert_char(writer, to_conv);
case 's':
return convert_string(writer, to_conv);
case 'd':
case 'i':
case 'u':
case 'o':
case 'x':
case 'X':
return convert_int(writer, to_conv);
#ifndef LIBC_COPT_PRINTF_DISABLE_FLOAT
case 'f':
case 'F':
return convert_float_decimal(writer, to_conv);
case 'e':
case 'E':
return convert_float_dec_exp(writer, to_conv);
case 'a':
case 'A':
return convert_float_hex_exp(writer, to_conv);
case 'g':
case 'G':
return convert_float_dec_auto(writer, to_conv);
#endif // LIBC_COPT_PRINTF_DISABLE_FLOAT
#ifndef LIBC_COPT_PRINTF_DISABLE_WRITE_INT
case 'n':
return convert_write_int(writer, to_conv);
#endif // LIBC_COPT_PRINTF_DISABLE_WRITE_INT
case 'p':
return convert_pointer(writer, to_conv);
default:
return writer->write(to_conv.raw_string);
}
return -1;
}
} // namespace printf_core
} // namespace __llvm_libc
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