1 /* Copyright (c) 2013, Vsevolod Stakhov
2 * All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution.
11 *
12 * THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
13 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
14 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
15 * DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
16 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
17 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
18 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
19 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
20 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
21 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22 */
23
24 /**
25 * @file this utility generates character table for ucl
26 */
27
28 #include <stdio.h>
29 #include <ctype.h>
30 #include <stdbool.h>
31
32 static inline int
print_flag(const char * flag,bool * need_or,char * val)33 print_flag (const char *flag, bool *need_or, char *val)
34 {
35 int res;
36 res = sprintf (val, "%s%s", *need_or ? "|" : "", flag);
37
38 *need_or |= true;
39
40 return res;
41 }
42
43 int
main(int argc,char ** argv)44 main (int argc, char **argv)
45 {
46 int i, col, r;
47 const char *name = "ucl_chartable";
48 bool need_or;
49 char valbuf[2048];
50
51 col = 0;
52
53 if (argc > 1) {
54 name = argv[1];
55 }
56
57 printf ("static const unsigned int %s[256] = {\n", name);
58
59 for (i = 0; i < 256; i ++) {
60 need_or = false;
61 r = 0;
62 /* UCL_CHARACTER_VALUE_END */
63
64 if (i == ' ' || i == '\t') {
65 r += print_flag ("UCL_CHARACTER_WHITESPACE", &need_or, valbuf + r);
66 }
67 if (isspace (i)) {
68 r += print_flag ("UCL_CHARACTER_WHITESPACE_UNSAFE", &need_or, valbuf + r);
69 }
70 if (isalnum (i) || i >= 0x80 || i == '/' || i == '_') {
71 r += print_flag ("UCL_CHARACTER_KEY_START", &need_or, valbuf + r);
72 }
73 if (isalnum (i) || i == '-' || i == '_' || i == '/' || i == '.' || i >= 0x80) {
74 r += print_flag ("UCL_CHARACTER_KEY", &need_or, valbuf + r);
75 }
76 if (i == 0 || i == '\r' || i == '\n' || i == ']' || i == '}' || i == ';' || i == ',' || i == '#') {
77 r += print_flag ("UCL_CHARACTER_VALUE_END", &need_or, valbuf + r);
78 }
79 else {
80 if (isprint (i) || i >= 0x80) {
81 r += print_flag ("UCL_CHARACTER_VALUE_STR", &need_or, valbuf + r);
82 }
83 if (isdigit (i) || i == '-') {
84 r += print_flag ("UCL_CHARACTER_VALUE_DIGIT_START", &need_or, valbuf + r);
85 }
86 if (isalnum (i) || i == '.' || i == '-' || i == '+') {
87 r += print_flag ("UCL_CHARACTER_VALUE_DIGIT", &need_or, valbuf + r);
88 }
89 }
90 if (i == '"' || i == '\\' || i == '/' || i == 'b' ||
91 i == 'f' || i == 'n' || i == 'r' || i == 't' || i == 'u') {
92 r += print_flag ("UCL_CHARACTER_ESCAPE", &need_or, valbuf + r);
93 }
94 if (i == ' ' || i == '\t' || i == ':' || i == '=') {
95 r += print_flag ("UCL_CHARACTER_KEY_SEP", &need_or, valbuf + r);
96 }
97 if (i == '\n' || i == '\r' || i == '\\' || i == '\b' || i == '\t' ||
98 i == '"' || i == '\f') {
99 r += print_flag ("UCL_CHARACTER_JSON_UNSAFE", &need_or, valbuf + r);
100 }
101 if (i == '\n' || i == '\r' || i == '\\' || i == '\b' || i == '\t' ||
102 i == '"' || i == '\f' || i == '=' || i == ':' || i == '{' || i == '[' || i == ' ') {
103 r += print_flag ("UCL_CHARACTER_UCL_UNSAFE", &need_or, valbuf + r);
104 }
105
106 if (!need_or) {
107 r += print_flag ("UCL_CHARACTER_DENIED", &need_or, valbuf + r);
108 }
109
110 if (isprint (i)) {
111 r += sprintf (valbuf + r, " /* %c */", i);
112 }
113 if (i != 255) {
114 r += sprintf (valbuf + r, ", ");
115 }
116 col += r;
117 if (col > 80) {
118 printf ("\n%s", valbuf);
119 col = r;
120 }
121 else {
122 printf ("%s", valbuf);
123 }
124 }
125 printf ("\n}\n");
126
127 return 0;
128 }
129