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 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 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