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c4b681fd | 1 | /* Parse printf format string. |
49114fd4 | 2 | Copyright (C) 1999, 2002-2003, 2005, 2007, 2010-2011 Free Software |
61cd9dc9 | 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 | ||
0f00f2c3 LC |
26 | #if HAVE_FEATURES_H |
27 | # include <features.h> /* for __GLIBC__, __UCLIBC__ */ | |
28 | #endif | |
29 | ||
c4b681fd LC |
30 | #include "printf-args.h" |
31 | ||
32 | ||
33 | /* Flags */ | |
1cd4fffc LC |
34 | #define FLAG_GROUP 1 /* ' flag */ |
35 | #define FLAG_LEFT 2 /* - flag */ | |
36 | #define FLAG_SHOWSIGN 4 /* + flag */ | |
37 | #define FLAG_SPACE 8 /* space flag */ | |
38 | #define FLAG_ALT 16 /* # flag */ | |
39 | #define FLAG_ZERO 32 | |
0f00f2c3 LC |
40 | #if __GLIBC__ >= 2 && !defined __UCLIBC__ |
41 | # define FLAG_LOCALIZED 64 /* I flag, uses localized digits */ | |
42 | #endif | |
c4b681fd LC |
43 | |
44 | /* arg_index value indicating that no argument is consumed. */ | |
1cd4fffc | 45 | #define ARG_NONE (~(size_t)0) |
c4b681fd LC |
46 | |
47 | /* xxx_directive: A parsed directive. | |
48 | xxx_directives: A parsed format string. */ | |
49 | ||
49114fd4 LC |
50 | /* Number of directly allocated directives (no malloc() needed). */ |
51 | #define N_DIRECT_ALLOC_DIRECTIVES 7 | |
52 | ||
c4b681fd LC |
53 | /* A parsed directive. */ |
54 | typedef struct | |
55 | { | |
56 | const char* dir_start; | |
57 | const char* dir_end; | |
58 | int flags; | |
59 | const char* width_start; | |
60 | const char* width_end; | |
61 | size_t width_arg_index; | |
62 | const char* precision_start; | |
63 | const char* precision_end; | |
64 | size_t precision_arg_index; | |
65 | 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 */ | |
66 | size_t arg_index; | |
67 | } | |
68 | char_directive; | |
69 | ||
70 | /* A parsed format string. */ | |
71 | typedef struct | |
72 | { | |
73 | size_t count; | |
74 | char_directive *dir; | |
75 | size_t max_width_length; | |
76 | size_t max_precision_length; | |
49114fd4 | 77 | char_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES]; |
c4b681fd LC |
78 | } |
79 | char_directives; | |
80 | ||
81 | #if ENABLE_UNISTDIO | |
82 | ||
83 | /* A parsed directive. */ | |
84 | typedef struct | |
85 | { | |
86 | const uint8_t* dir_start; | |
87 | const uint8_t* dir_end; | |
88 | int flags; | |
89 | const uint8_t* width_start; | |
90 | const uint8_t* width_end; | |
91 | size_t width_arg_index; | |
92 | const uint8_t* precision_start; | |
93 | const uint8_t* precision_end; | |
94 | size_t precision_arg_index; | |
95 | 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 */ | |
96 | size_t arg_index; | |
97 | } | |
98 | u8_directive; | |
99 | ||
100 | /* A parsed format string. */ | |
101 | typedef struct | |
102 | { | |
103 | size_t count; | |
104 | u8_directive *dir; | |
105 | size_t max_width_length; | |
106 | size_t max_precision_length; | |
49114fd4 | 107 | u8_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES]; |
c4b681fd LC |
108 | } |
109 | u8_directives; | |
110 | ||
111 | /* A parsed directive. */ | |
112 | typedef struct | |
113 | { | |
114 | const uint16_t* dir_start; | |
115 | const uint16_t* dir_end; | |
116 | int flags; | |
117 | const uint16_t* width_start; | |
118 | const uint16_t* width_end; | |
119 | size_t width_arg_index; | |
120 | const uint16_t* precision_start; | |
121 | const uint16_t* precision_end; | |
122 | size_t precision_arg_index; | |
123 | 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 */ | |
124 | size_t arg_index; | |
125 | } | |
126 | u16_directive; | |
127 | ||
128 | /* A parsed format string. */ | |
129 | typedef struct | |
130 | { | |
131 | size_t count; | |
132 | u16_directive *dir; | |
133 | size_t max_width_length; | |
134 | size_t max_precision_length; | |
49114fd4 | 135 | u16_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES]; |
c4b681fd LC |
136 | } |
137 | u16_directives; | |
138 | ||
139 | /* A parsed directive. */ | |
140 | typedef struct | |
141 | { | |
142 | const uint32_t* dir_start; | |
143 | const uint32_t* dir_end; | |
144 | int flags; | |
145 | const uint32_t* width_start; | |
146 | const uint32_t* width_end; | |
147 | size_t width_arg_index; | |
148 | const uint32_t* precision_start; | |
149 | const uint32_t* precision_end; | |
150 | size_t precision_arg_index; | |
151 | 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 */ | |
152 | size_t arg_index; | |
153 | } | |
154 | u32_directive; | |
155 | ||
156 | /* A parsed format string. */ | |
157 | typedef struct | |
158 | { | |
159 | size_t count; | |
160 | u32_directive *dir; | |
161 | size_t max_width_length; | |
162 | size_t max_precision_length; | |
49114fd4 | 163 | u32_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES]; |
c4b681fd LC |
164 | } |
165 | u32_directives; | |
166 | ||
167 | #endif | |
168 | ||
169 | ||
170 | /* Parses the format string. Fills in the number N of directives, and fills | |
171 | in directives[0], ..., directives[N-1], and sets directives[N].dir_start | |
172 | to the end of the format string. Also fills in the arg_type fields of the | |
173 | arguments and the needed count of arguments. */ | |
174 | #if ENABLE_UNISTDIO | |
175 | extern int | |
176 | ulc_printf_parse (const char *format, char_directives *d, arguments *a); | |
177 | extern int | |
178 | u8_printf_parse (const uint8_t *format, u8_directives *d, arguments *a); | |
179 | extern int | |
180 | u16_printf_parse (const uint16_t *format, u16_directives *d, | |
1cd4fffc | 181 | arguments *a); |
c4b681fd LC |
182 | extern int |
183 | u32_printf_parse (const uint32_t *format, u32_directives *d, | |
1cd4fffc | 184 | arguments *a); |
c4b681fd LC |
185 | #else |
186 | # ifdef STATIC | |
187 | STATIC | |
188 | # else | |
189 | extern | |
190 | # endif | |
191 | int printf_parse (const char *format, char_directives *d, arguments *a); | |
192 | #endif | |
193 | ||
194 | #endif /* _PRINTF_PARSE_H */ |