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c4b681fd | 1 | /* Parse printf format string. |
61cd9dc9 LC |
2 | Copyright (C) 1999, 2002-2003, 2005, 2007, 2009-2010 Free Software |
3 | Foundation, Inc. | |
c4b681fd LC |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU Lesser General Public License as published by | |
7 | the Free Software Foundation; either version 2, or (at your option) | |
8 | any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public License along | |
16 | with this program; if not, write to the Free Software Foundation, | |
17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
18 | ||
19 | #ifndef _PRINTF_PARSE_H | |
20 | #define _PRINTF_PARSE_H | |
21 | ||
22 | /* This file can be parametrized with the following macros: | |
23 | ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions. | |
24 | STATIC Set to 'static' to declare the function static. */ | |
25 | ||
26 | #include "printf-args.h" | |
27 | ||
28 | ||
29 | /* Flags */ | |
1cd4fffc LC |
30 | #define FLAG_GROUP 1 /* ' flag */ |
31 | #define FLAG_LEFT 2 /* - flag */ | |
32 | #define FLAG_SHOWSIGN 4 /* + flag */ | |
33 | #define FLAG_SPACE 8 /* space flag */ | |
34 | #define FLAG_ALT 16 /* # flag */ | |
35 | #define FLAG_ZERO 32 | |
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36 | |
37 | /* arg_index value indicating that no argument is consumed. */ | |
1cd4fffc | 38 | #define ARG_NONE (~(size_t)0) |
c4b681fd LC |
39 | |
40 | /* xxx_directive: A parsed directive. | |
41 | xxx_directives: A parsed format string. */ | |
42 | ||
43 | /* A parsed directive. */ | |
44 | typedef struct | |
45 | { | |
46 | const char* dir_start; | |
47 | const char* dir_end; | |
48 | int flags; | |
49 | const char* width_start; | |
50 | const char* width_end; | |
51 | size_t width_arg_index; | |
52 | const char* precision_start; | |
53 | const char* precision_end; | |
54 | size_t precision_arg_index; | |
55 | 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 */ | |
56 | size_t arg_index; | |
57 | } | |
58 | char_directive; | |
59 | ||
60 | /* A parsed format string. */ | |
61 | typedef struct | |
62 | { | |
63 | size_t count; | |
64 | char_directive *dir; | |
65 | size_t max_width_length; | |
66 | size_t max_precision_length; | |
67 | } | |
68 | char_directives; | |
69 | ||
70 | #if ENABLE_UNISTDIO | |
71 | ||
72 | /* A parsed directive. */ | |
73 | typedef struct | |
74 | { | |
75 | const uint8_t* dir_start; | |
76 | const uint8_t* dir_end; | |
77 | int flags; | |
78 | const uint8_t* width_start; | |
79 | const uint8_t* width_end; | |
80 | size_t width_arg_index; | |
81 | const uint8_t* precision_start; | |
82 | const uint8_t* precision_end; | |
83 | size_t precision_arg_index; | |
84 | 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 */ | |
85 | size_t arg_index; | |
86 | } | |
87 | u8_directive; | |
88 | ||
89 | /* A parsed format string. */ | |
90 | typedef struct | |
91 | { | |
92 | size_t count; | |
93 | u8_directive *dir; | |
94 | size_t max_width_length; | |
95 | size_t max_precision_length; | |
96 | } | |
97 | u8_directives; | |
98 | ||
99 | /* A parsed directive. */ | |
100 | typedef struct | |
101 | { | |
102 | const uint16_t* dir_start; | |
103 | const uint16_t* dir_end; | |
104 | int flags; | |
105 | const uint16_t* width_start; | |
106 | const uint16_t* width_end; | |
107 | size_t width_arg_index; | |
108 | const uint16_t* precision_start; | |
109 | const uint16_t* precision_end; | |
110 | size_t precision_arg_index; | |
111 | 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 */ | |
112 | size_t arg_index; | |
113 | } | |
114 | u16_directive; | |
115 | ||
116 | /* A parsed format string. */ | |
117 | typedef struct | |
118 | { | |
119 | size_t count; | |
120 | u16_directive *dir; | |
121 | size_t max_width_length; | |
122 | size_t max_precision_length; | |
123 | } | |
124 | u16_directives; | |
125 | ||
126 | /* A parsed directive. */ | |
127 | typedef struct | |
128 | { | |
129 | const uint32_t* dir_start; | |
130 | const uint32_t* dir_end; | |
131 | int flags; | |
132 | const uint32_t* width_start; | |
133 | const uint32_t* width_end; | |
134 | size_t width_arg_index; | |
135 | const uint32_t* precision_start; | |
136 | const uint32_t* precision_end; | |
137 | size_t precision_arg_index; | |
138 | 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 */ | |
139 | size_t arg_index; | |
140 | } | |
141 | u32_directive; | |
142 | ||
143 | /* A parsed format string. */ | |
144 | typedef struct | |
145 | { | |
146 | size_t count; | |
147 | u32_directive *dir; | |
148 | size_t max_width_length; | |
149 | size_t max_precision_length; | |
150 | } | |
151 | u32_directives; | |
152 | ||
153 | #endif | |
154 | ||
155 | ||
156 | /* Parses the format string. Fills in the number N of directives, and fills | |
157 | in directives[0], ..., directives[N-1], and sets directives[N].dir_start | |
158 | to the end of the format string. Also fills in the arg_type fields of the | |
159 | arguments and the needed count of arguments. */ | |
160 | #if ENABLE_UNISTDIO | |
161 | extern int | |
162 | ulc_printf_parse (const char *format, char_directives *d, arguments *a); | |
163 | extern int | |
164 | u8_printf_parse (const uint8_t *format, u8_directives *d, arguments *a); | |
165 | extern int | |
166 | u16_printf_parse (const uint16_t *format, u16_directives *d, | |
1cd4fffc | 167 | arguments *a); |
c4b681fd LC |
168 | extern int |
169 | u32_printf_parse (const uint32_t *format, u32_directives *d, | |
1cd4fffc | 170 | arguments *a); |
c4b681fd LC |
171 | #else |
172 | # ifdef STATIC | |
173 | STATIC | |
174 | # else | |
175 | extern | |
176 | # endif | |
177 | int printf_parse (const char *format, char_directives *d, arguments *a); | |
178 | #endif | |
179 | ||
180 | #endif /* _PRINTF_PARSE_H */ |