1 //===-- Format specifier converter implmentation for printf -----*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "src/stdio/printf_core/converter.h"
10
11 #include "src/stdio/printf_core/core_structs.h"
12 #include "src/stdio/printf_core/writer.h"
13
14 // This option allows for replacing all of the conversion functions with custom
15 // replacements. This allows conversions to be replaced at compile time.
16 #ifndef LLVM_LIBC_PRINTF_CONV_ATLAS
17 #include "src/stdio/printf_core/converter_atlas.h"
18 #else
19 #include LLVM_LIBC_PRINTF_CONV_ATLAS
20 #endif
21
22 #include <stddef.h>
23
24 namespace __llvm_libc {
25 namespace printf_core {
26
convert(Writer * writer,const FormatSection & to_conv)27 int convert(Writer *writer, const FormatSection &to_conv) {
28 if (!to_conv.has_conv)
29 return writer->write(to_conv.raw_string, to_conv.raw_len);
30
31 switch (to_conv.conv_name) {
32 case '%':
33 return writer->write("%", 1);
34 case 'c':
35 return convert_char(writer, to_conv);
36 case 's':
37 return convert_string(writer, to_conv);
38 case 'd':
39 case 'i':
40 case 'u':
41 return convert_int(writer, to_conv);
42 case 'o':
43 return convert_oct(writer, to_conv);
44 case 'x':
45 case 'X':
46 return convert_hex(writer, to_conv);
47 #ifndef LLVM_LIBC_PRINTF_DISABLE_FLOAT
48 // case 'f':
49 // case 'F':
50 // return convert_float_decimal(writer, to_conv);
51 // case 'e':
52 // case 'E':
53 // return convert_float_dec_exp(writer, to_conv);
54 case 'a':
55 case 'A':
56 return convert_float_hex_exp(writer, to_conv);
57 // case 'g':
58 // case 'G':
59 // return convert_float_mixed(writer, to_conv);
60 #endif // LLVM_LIBC_PRINTF_DISABLE_FLOAT
61 #ifndef LLVM_LIBC_PRINTF_DISABLE_WRITE_INT
62 case 'n':
63 return convert_write_int(writer, to_conv);
64 #endif // LLVM_LIBC_PRINTF_DISABLE_WRITE_INT
65 case 'p':
66 return convert_pointer(writer, to_conv);
67 default:
68 return writer->write(to_conv.raw_string, to_conv.raw_len);
69 }
70 return -1;
71 }
72
73 } // namespace printf_core
74 } // namespace __llvm_libc
75