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1 | /* Parse printf format string. |
2 | Copyright (C) 1999, 2002-2003, 2005, 2007 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU Lesser General Public License as published by | |
6 | the Free Software Foundation; either version 2, or (at your option) | |
7 | any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public License along | |
15 | with this program; if not, write to the Free Software Foundation, | |
16 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
17 | ||
18 | #ifndef _PRINTF_PARSE_H | |
19 | #define _PRINTF_PARSE_H | |
20 | ||
21 | /* This file can be parametrized with the following macros: | |
22 | ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions. | |
23 | STATIC Set to 'static' to declare the function static. */ | |
24 | ||
25 | #include "printf-args.h" | |
26 | ||
27 | ||
28 | /* Flags */ | |
1cd4fffc LC |
29 | #define FLAG_GROUP 1 /* ' flag */ |
30 | #define FLAG_LEFT 2 /* - flag */ | |
31 | #define FLAG_SHOWSIGN 4 /* + flag */ | |
32 | #define FLAG_SPACE 8 /* space flag */ | |
33 | #define FLAG_ALT 16 /* # flag */ | |
34 | #define FLAG_ZERO 32 | |
c4b681fd LC |
35 | |
36 | /* arg_index value indicating that no argument is consumed. */ | |
1cd4fffc | 37 | #define ARG_NONE (~(size_t)0) |
c4b681fd LC |
38 | |
39 | /* xxx_directive: A parsed directive. | |
40 | xxx_directives: A parsed format string. */ | |
41 | ||
42 | /* A parsed directive. */ | |
43 | typedef struct | |
44 | { | |
45 | const char* dir_start; | |
46 | const char* dir_end; | |
47 | int flags; | |
48 | const char* width_start; | |
49 | const char* width_end; | |
50 | size_t width_arg_index; | |
51 | const char* precision_start; | |
52 | const char* precision_end; | |
53 | size_t precision_arg_index; | |
54 | char conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */ | |
55 | size_t arg_index; | |
56 | } | |
57 | char_directive; | |
58 | ||
59 | /* A parsed format string. */ | |
60 | typedef struct | |
61 | { | |
62 | size_t count; | |
63 | char_directive *dir; | |
64 | size_t max_width_length; | |
65 | size_t max_precision_length; | |
66 | } | |
67 | char_directives; | |
68 | ||
69 | #if ENABLE_UNISTDIO | |
70 | ||
71 | /* A parsed directive. */ | |
72 | typedef struct | |
73 | { | |
74 | const uint8_t* dir_start; | |
75 | const uint8_t* dir_end; | |
76 | int flags; | |
77 | const uint8_t* width_start; | |
78 | const uint8_t* width_end; | |
79 | size_t width_arg_index; | |
80 | const uint8_t* precision_start; | |
81 | const uint8_t* precision_end; | |
82 | size_t precision_arg_index; | |
83 | uint8_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */ | |
84 | size_t arg_index; | |
85 | } | |
86 | u8_directive; | |
87 | ||
88 | /* A parsed format string. */ | |
89 | typedef struct | |
90 | { | |
91 | size_t count; | |
92 | u8_directive *dir; | |
93 | size_t max_width_length; | |
94 | size_t max_precision_length; | |
95 | } | |
96 | u8_directives; | |
97 | ||
98 | /* A parsed directive. */ | |
99 | typedef struct | |
100 | { | |
101 | const uint16_t* dir_start; | |
102 | const uint16_t* dir_end; | |
103 | int flags; | |
104 | const uint16_t* width_start; | |
105 | const uint16_t* width_end; | |
106 | size_t width_arg_index; | |
107 | const uint16_t* precision_start; | |
108 | const uint16_t* precision_end; | |
109 | size_t precision_arg_index; | |
110 | uint16_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */ | |
111 | size_t arg_index; | |
112 | } | |
113 | u16_directive; | |
114 | ||
115 | /* A parsed format string. */ | |
116 | typedef struct | |
117 | { | |
118 | size_t count; | |
119 | u16_directive *dir; | |
120 | size_t max_width_length; | |
121 | size_t max_precision_length; | |
122 | } | |
123 | u16_directives; | |
124 | ||
125 | /* A parsed directive. */ | |
126 | typedef struct | |
127 | { | |
128 | const uint32_t* dir_start; | |
129 | const uint32_t* dir_end; | |
130 | int flags; | |
131 | const uint32_t* width_start; | |
132 | const uint32_t* width_end; | |
133 | size_t width_arg_index; | |
134 | const uint32_t* precision_start; | |
135 | const uint32_t* precision_end; | |
136 | size_t precision_arg_index; | |
137 | uint32_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */ | |
138 | size_t arg_index; | |
139 | } | |
140 | u32_directive; | |
141 | ||
142 | /* A parsed format string. */ | |
143 | typedef struct | |
144 | { | |
145 | size_t count; | |
146 | u32_directive *dir; | |
147 | size_t max_width_length; | |
148 | size_t max_precision_length; | |
149 | } | |
150 | u32_directives; | |
151 | ||
152 | #endif | |
153 | ||
154 | ||
155 | /* Parses the format string. Fills in the number N of directives, and fills | |
156 | in directives[0], ..., directives[N-1], and sets directives[N].dir_start | |
157 | to the end of the format string. Also fills in the arg_type fields of the | |
158 | arguments and the needed count of arguments. */ | |
159 | #if ENABLE_UNISTDIO | |
160 | extern int | |
161 | ulc_printf_parse (const char *format, char_directives *d, arguments *a); | |
162 | extern int | |
163 | u8_printf_parse (const uint8_t *format, u8_directives *d, arguments *a); | |
164 | extern int | |
165 | u16_printf_parse (const uint16_t *format, u16_directives *d, | |
1cd4fffc | 166 | arguments *a); |
c4b681fd LC |
167 | extern int |
168 | u32_printf_parse (const uint32_t *format, u32_directives *d, | |
1cd4fffc | 169 | arguments *a); |
c4b681fd LC |
170 | #else |
171 | # ifdef STATIC | |
172 | STATIC | |
173 | # else | |
174 | extern | |
175 | # endif | |
176 | int printf_parse (const char *format, char_directives *d, arguments *a); | |
177 | #endif | |
178 | ||
179 | #endif /* _PRINTF_PARSE_H */ |