Mercurial > routeflapper
annotate src/tokenizer.cpp @ 4:180d26aa2a17
Fedora 9 compile and const correctness.
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Thu, 12 Jun 2008 17:51:33 -0700 |
| parents | 48d06780cf77 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 | |
| 3 Copyright (c) 2007 Carl Byington - 510 Software Group, released under | |
| 4 the GPL version 3 or any later version at your choice available at | |
| 5 http://www.gnu.org/licenses/gpl-3.0.txt | |
| 6 | |
| 7 */ | |
| 8 | |
| 9 #include "includes.h" | |
| 10 | |
| 11 const int maxlen = 1000; // used for snprintf buffers | |
| 12 | |
| 13 enum state {s_init, | |
| 14 s_token, | |
| 15 s_string, | |
| 16 s_ignore, // whitespace | |
| 17 s_eol, // ignore to eol | |
| 18 end_state, | |
| 19 | |
| 20 s_term, // token terminator | |
| 21 s_single, | |
| 22 s_string1, // first " of string | |
| 23 s_string2, // last " of string | |
| 24 s_slash // possible start of ignore to eol | |
| 25 }; | |
| 26 | |
| 27 typedef state PARSE[end_state]; | |
| 28 | |
| 29 static PARSE parse_table[256] = { | |
| 30 // s_init s_token s_string s_ignore s_eol | |
| 31 { s_single, s_term, s_string, s_single, s_eol, }, // 0x00 | |
| 32 { s_single, s_term, s_string, s_single, s_eol, }, // 0x01 | |
| 33 { s_single, s_term, s_string, s_single, s_eol, }, // 0x02 | |
| 34 { s_single, s_term, s_string, s_single, s_eol, }, // 0x03 | |
| 35 { s_single, s_term, s_string, s_single, s_eol, }, // 0x04 | |
| 36 { s_single, s_term, s_string, s_single, s_eol, }, // 0x05 | |
| 37 { s_single, s_term, s_string, s_single, s_eol, }, // 0x06 | |
| 38 { s_single, s_term, s_string, s_single, s_eol, }, // 0x07 | |
| 39 { s_single, s_term, s_string, s_single, s_eol, }, // 0x08 | |
| 40 { s_ignore, s_term, s_string, s_ignore, s_eol, }, // 0x09 <tab> | |
| 41 { s_ignore, s_term, s_string2, s_ignore, s_ignore, }, // 0x0a <lf> | |
| 42 { s_single, s_term, s_string, s_single, s_eol, }, // 0x0b | |
| 43 { s_single, s_term, s_string, s_single, s_eol, }, // 0x0c | |
| 44 { s_ignore, s_term, s_string2, s_ignore, s_eol, }, // 0x0d <cr> | |
| 45 { s_single, s_term, s_string, s_single, s_eol, }, // 0x0e | |
| 46 { s_single, s_term, s_string, s_single, s_eol, }, // 0x0f | |
| 47 { s_single, s_term, s_string, s_single, s_eol, }, // 0x10 | |
| 48 { s_single, s_term, s_string, s_single, s_eol, }, // 0x11 xon char | |
| 49 { s_single, s_term, s_string, s_single, s_eol, }, // 0x12 | |
| 50 { s_single, s_term, s_string, s_single, s_eol, }, // 0x13 xoff char | |
| 51 { s_single, s_term, s_string, s_single, s_eol, }, // 0x14 | |
| 52 { s_single, s_term, s_string, s_single, s_eol, }, // 0x15 | |
| 53 { s_single, s_term, s_string, s_single, s_eol, }, // 0x16 | |
| 54 { s_single, s_term, s_string, s_single, s_eol, }, // 0x17 | |
| 55 { s_single, s_term, s_string, s_single, s_eol, }, // 0x18 | |
| 56 { s_single, s_term, s_string, s_single, s_eol, }, // 0x19 | |
| 57 { s_single, s_term, s_string, s_single, s_eol, }, // 0x1a | |
| 58 { s_single, s_term, s_string, s_single, s_eol, }, // 0x1b | |
| 59 { s_single, s_term, s_string, s_single, s_eol, }, // 0x1c | |
| 60 { s_single, s_term, s_string, s_single, s_eol, }, // 0x1d | |
| 61 { s_single, s_term, s_string, s_single, s_eol, }, // 0x1e | |
| 62 { s_single, s_term, s_string, s_single, s_eol, }, // 0x1f | |
| 63 { s_ignore, s_term, s_string, s_ignore, s_eol, }, // 0x20 space | |
| 64 { s_single, s_term, s_string, s_single, s_eol, }, // 0x21 ! | |
| 65 { s_string1, s_term, s_string2, s_string1, s_eol, }, // 0x22 " | |
| 66 { s_eol, s_term, s_string, s_eol, s_eol, }, // 0x23 # | |
| 67 { s_single, s_term, s_string, s_single, s_eol, }, // 0x24 $ | |
| 68 { s_single, s_term, s_string, s_single, s_eol, }, // 0x25 % | |
| 69 { s_single, s_term, s_string, s_single, s_eol, }, // 0x26 & | |
| 70 { s_single, s_term, s_string, s_single, s_eol, }, // 0x27 ' | |
| 71 { s_single, s_term, s_string, s_single, s_eol, }, // 0x28 ( | |
| 72 { s_single, s_term, s_string, s_single, s_eol, }, // 0x29 ) | |
| 73 { s_single, s_term, s_string, s_single, s_eol, }, // 0x2A * | |
| 74 { s_single, s_token, s_string, s_single, s_eol, }, // 0x2B + | |
| 75 { s_single, s_term, s_string, s_single, s_eol, }, // 0x2C , | |
| 76 { s_single, s_token, s_string, s_single, s_eol, }, // 0x2D - | |
| 77 { s_single, s_token, s_string, s_single, s_eol, }, // 0x2E . | |
| 78 { s_slash, s_token, s_string, s_slash, s_eol, }, // 0x2F / | |
| 79 { s_token, s_token, s_string, s_token, s_eol, }, // 0x30 0 | |
| 80 { s_token, s_token, s_string, s_token, s_eol, }, // 0x31 1 | |
| 81 { s_token, s_token, s_string, s_token, s_eol, }, // 0x32 2 | |
| 82 { s_token, s_token, s_string, s_token, s_eol, }, // 0x33 3 | |
| 83 { s_token, s_token, s_string, s_token, s_eol, }, // 0x34 4 | |
| 84 { s_token, s_token, s_string, s_token, s_eol, }, // 0x35 5 | |
| 85 { s_token, s_token, s_string, s_token, s_eol, }, // 0x36 6 | |
| 86 { s_token, s_token, s_string, s_token, s_eol, }, // 0x37 7 | |
| 87 { s_token, s_token, s_string, s_token, s_eol, }, // 0x38 8 | |
| 88 { s_token, s_token, s_string, s_token, s_eol, }, // 0x39 9 | |
| 89 { s_single, s_term, s_string, s_single, s_eol, }, // 0x3A : | |
| 90 { s_single, s_term, s_string, s_single, s_eol, }, // 0x3B ; | |
| 91 { s_single, s_term, s_string, s_single, s_eol, }, // 0x3C < | |
| 92 { s_single, s_token, s_string, s_single, s_eol, }, // 0x3D = | |
| 93 { s_single, s_term, s_string, s_single, s_eol, }, // 0x3E > | |
| 94 { s_single, s_term, s_string, s_single, s_eol, }, // 0x3F ? | |
| 95 { s_single, s_token, s_string, s_single, s_eol, }, // 0x40 @ | |
| 96 { s_token, s_token, s_string, s_token, s_eol, }, // 0x41 A | |
| 97 { s_token, s_token, s_string, s_token, s_eol, }, // 0x42 B | |
| 98 { s_token, s_token, s_string, s_token, s_eol, }, // 0x43 C | |
| 99 { s_token, s_token, s_string, s_token, s_eol, }, // 0x44 D | |
| 100 { s_token, s_token, s_string, s_token, s_eol, }, // 0x45 E | |
| 101 { s_token, s_token, s_string, s_token, s_eol, }, // 0x46 F | |
| 102 { s_token, s_token, s_string, s_token, s_eol, }, // 0x47 G | |
| 103 { s_token, s_token, s_string, s_token, s_eol, }, // 0x48 H | |
| 104 { s_token, s_token, s_string, s_token, s_eol, }, // 0x49 I | |
| 105 { s_token, s_token, s_string, s_token, s_eol, }, // 0x4A J | |
| 106 { s_token, s_token, s_string, s_token, s_eol, }, // 0x4B K | |
| 107 { s_token, s_token, s_string, s_token, s_eol, }, // 0x4C L | |
| 108 { s_token, s_token, s_string, s_token, s_eol, }, // 0x4D M | |
| 109 { s_token, s_token, s_string, s_token, s_eol, }, // 0x4E N | |
| 110 { s_token, s_token, s_string, s_token, s_eol, }, // 0x4F O | |
| 111 { s_token, s_token, s_string, s_token, s_eol, }, // 0x50 P | |
| 112 { s_token, s_token, s_string, s_token, s_eol, }, // 0x51 Q | |
| 113 { s_token, s_token, s_string, s_token, s_eol, }, // 0x52 R | |
| 114 { s_token, s_token, s_string, s_token, s_eol, }, // 0x53 S | |
| 115 { s_token, s_token, s_string, s_token, s_eol, }, // 0x54 T | |
| 116 { s_token, s_token, s_string, s_token, s_eol, }, // 0x55 U | |
| 117 { s_token, s_token, s_string, s_token, s_eol, }, // 0x56 V | |
| 118 { s_token, s_token, s_string, s_token, s_eol, }, // 0x57 W | |
| 119 { s_token, s_token, s_string, s_token, s_eol, }, // 0x58 X | |
| 120 { s_token, s_token, s_string, s_token, s_eol, }, // 0x59 Y | |
| 121 { s_token, s_token, s_string, s_token, s_eol, }, // 0x5A Z | |
| 122 { s_single, s_term, s_string, s_single, s_eol, }, // 0x5B [ | |
| 123 { s_single, s_term, s_string, s_single, s_eol, }, // 0x5C backslash | |
| 124 { s_single, s_term, s_string, s_single, s_eol, }, // 0x5D ] | |
| 125 { s_single, s_term, s_string, s_single, s_eol, }, // 0x5E ^ | |
| 126 { s_single, s_token, s_string, s_single, s_eol, }, // 0x5F _ | |
| 127 { s_single, s_term, s_string, s_single, s_eol, }, // 0x60 ` | |
| 128 { s_token, s_token, s_string, s_token, s_eol, }, // 0x61 a | |
| 129 { s_token, s_token, s_string, s_token, s_eol, }, // 0x62 b | |
| 130 { s_token, s_token, s_string, s_token, s_eol, }, // 0x63 c | |
| 131 { s_token, s_token, s_string, s_token, s_eol, }, // 0x64 d | |
| 132 { s_token, s_token, s_string, s_token, s_eol, }, // 0x65 e | |
| 133 { s_token, s_token, s_string, s_token, s_eol, }, // 0x66 f | |
| 134 { s_token, s_token, s_string, s_token, s_eol, }, // 0x67 g | |
| 135 { s_token, s_token, s_string, s_token, s_eol, }, // 0x68 h | |
| 136 { s_token, s_token, s_string, s_token, s_eol, }, // 0x69 i | |
| 137 { s_token, s_token, s_string, s_token, s_eol, }, // 0x6A j | |
| 138 { s_token, s_token, s_string, s_token, s_eol, }, // 0x6B k | |
| 139 { s_token, s_token, s_string, s_token, s_eol, }, // 0x6C l | |
| 140 { s_token, s_token, s_string, s_token, s_eol, }, // 0x6D m | |
| 141 { s_token, s_token, s_string, s_token, s_eol, }, // 0x6E n | |
| 142 { s_token, s_token, s_string, s_token, s_eol, }, // 0x6F o | |
| 143 { s_token, s_token, s_string, s_token, s_eol, }, // 0x70 p | |
| 144 { s_token, s_token, s_string, s_token, s_eol, }, // 0x71 q | |
| 145 { s_token, s_token, s_string, s_token, s_eol, }, // 0x72 r | |
| 146 { s_token, s_token, s_string, s_token, s_eol, }, // 0x73 s | |
| 147 { s_token, s_token, s_string, s_token, s_eol, }, // 0x74 t | |
| 148 { s_token, s_token, s_string, s_token, s_eol, }, // 0x75 u | |
| 149 { s_token, s_token, s_string, s_token, s_eol, }, // 0x76 v | |
| 150 { s_token, s_token, s_string, s_token, s_eol, }, // 0x77 w | |
| 151 { s_token, s_token, s_string, s_token, s_eol, }, // 0x78 x | |
| 152 { s_token, s_token, s_string, s_token, s_eol, }, // 0x79 y | |
| 153 { s_token, s_token, s_string, s_token, s_eol, }, // 0x7A z | |
| 154 { s_single, s_term, s_string, s_single, s_eol, }, // 0x7B { | |
| 155 { s_single, s_term, s_string, s_single, s_eol, }, // 0x7C | | |
| 156 { s_single, s_term, s_string, s_single, s_eol, }, // 0x7D } | |
| 157 { s_single, s_term, s_string, s_single, s_eol, }, // 0x7E ~ | |
| 158 { s_single, s_term, s_string, s_single, s_eol, }, // 0x7f | |
| 159 { s_single, s_term, s_string, s_single, s_eol, }, // 0x80 | |
| 160 { s_single, s_term, s_string, s_single, s_eol, }, // 0x81 | |
| 161 { s_single, s_term, s_string, s_single, s_eol, }, // 0x82 | |
| 162 { s_single, s_term, s_string, s_single, s_eol, }, // 0x83 | |
| 163 { s_single, s_term, s_string, s_single, s_eol, }, // 0x84 | |
| 164 { s_single, s_term, s_string, s_single, s_eol, }, // 0x85 | |
| 165 { s_single, s_term, s_string, s_single, s_eol, }, // 0x86 | |
| 166 { s_single, s_term, s_string, s_single, s_eol, }, // 0x87 | |
| 167 { s_single, s_term, s_string, s_single, s_eol, }, // 0x88 | |
| 168 { s_single, s_term, s_string, s_single, s_eol, }, // 0x89 | |
| 169 { s_single, s_term, s_string, s_single, s_eol, }, // 0x8a | |
| 170 { s_single, s_term, s_string, s_single, s_eol, }, // 0x8b | |
| 171 { s_single, s_term, s_string, s_single, s_eol, }, // 0x8c | |
| 172 { s_single, s_term, s_string, s_single, s_eol, }, // 0x8d | |
| 173 { s_single, s_term, s_string, s_single, s_eol, }, // 0x8e | |
| 174 { s_single, s_term, s_string, s_single, s_eol, }, // 0x8f | |
| 175 { s_single, s_term, s_string, s_single, s_eol, }, // 0x90 | |
| 176 { s_single, s_term, s_string, s_single, s_eol, }, // 0x91 | |
| 177 { s_single, s_term, s_string, s_single, s_eol, }, // 0x92 | |
| 178 { s_single, s_term, s_string, s_single, s_eol, }, // 0x93 | |
| 179 { s_single, s_term, s_string, s_single, s_eol, }, // 0x94 | |
| 180 { s_single, s_term, s_string, s_single, s_eol, }, // 0x95 | |
| 181 { s_single, s_term, s_string, s_single, s_eol, }, // 0x96 | |
| 182 { s_single, s_term, s_string, s_single, s_eol, }, // 0x97 | |
| 183 { s_single, s_term, s_string, s_single, s_eol, }, // 0x98 | |
| 184 { s_single, s_term, s_string, s_single, s_eol, }, // 0x99 | |
| 185 { s_single, s_term, s_string, s_single, s_eol, }, // 0x9a | |
| 186 { s_single, s_term, s_string, s_single, s_eol, }, // 0x9b | |
| 187 { s_single, s_term, s_string, s_single, s_eol, }, // 0x9c | |
| 188 { s_single, s_term, s_string, s_single, s_eol, }, // 0x9d | |
| 189 { s_single, s_term, s_string, s_single, s_eol, }, // 0x9e | |
| 190 { s_single, s_term, s_string, s_single, s_eol, }, // 0x9f | |
| 191 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa0 | |
| 192 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa1 | |
| 193 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa2 | |
| 194 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa3 | |
| 195 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa4 | |
| 196 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa5 | |
| 197 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa6 | |
| 198 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa7 | |
| 199 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa8 | |
| 200 { s_single, s_term, s_string, s_single, s_eol, }, // 0xa9 | |
| 201 { s_single, s_term, s_string, s_single, s_eol, }, // 0xaa | |
| 202 { s_single, s_term, s_string, s_single, s_eol, }, // 0xab | |
| 203 { s_single, s_term, s_string, s_single, s_eol, }, // 0xac | |
| 204 { s_single, s_term, s_string, s_single, s_eol, }, // 0xad | |
| 205 { s_single, s_term, s_string, s_single, s_eol, }, // 0xae | |
| 206 { s_single, s_term, s_string, s_single, s_eol, }, // 0xaf | |
| 207 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb0 | |
| 208 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb1 | |
| 209 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb2 | |
| 210 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb3 | |
| 211 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb4 | |
| 212 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb5 | |
| 213 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb6 | |
| 214 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb7 | |
| 215 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb8 | |
| 216 { s_single, s_term, s_string, s_single, s_eol, }, // 0xb9 | |
| 217 { s_single, s_term, s_string, s_single, s_eol, }, // 0xba | |
| 218 { s_single, s_term, s_string, s_single, s_eol, }, // 0xbb | |
| 219 { s_single, s_term, s_string, s_single, s_eol, }, // 0xbc | |
| 220 { s_single, s_term, s_string, s_single, s_eol, }, // 0xbd | |
| 221 { s_single, s_term, s_string, s_single, s_eol, }, // 0xbe | |
| 222 { s_single, s_term, s_string, s_single, s_eol, }, // 0xbf | |
| 223 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc0 | |
| 224 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc1 | |
| 225 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc2 | |
| 226 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc3 | |
| 227 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc4 | |
| 228 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc5 | |
| 229 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc6 | |
| 230 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc7 | |
| 231 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc8 | |
| 232 { s_single, s_term, s_string, s_single, s_eol, }, // 0xc9 | |
| 233 { s_single, s_term, s_string, s_single, s_eol, }, // 0xca | |
| 234 { s_single, s_term, s_string, s_single, s_eol, }, // 0xcb | |
| 235 { s_single, s_term, s_string, s_single, s_eol, }, // 0xcc | |
| 236 { s_single, s_term, s_string, s_single, s_eol, }, // 0xcd | |
| 237 { s_single, s_term, s_string, s_single, s_eol, }, // 0xce | |
| 238 { s_single, s_term, s_string, s_single, s_eol, }, // 0xcf | |
| 239 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd0 | |
| 240 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd1 | |
| 241 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd2 | |
| 242 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd3 | |
| 243 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd4 | |
| 244 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd5 | |
| 245 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd6 | |
| 246 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd7 | |
| 247 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd8 | |
| 248 { s_single, s_term, s_string, s_single, s_eol, }, // 0xd9 | |
| 249 { s_single, s_term, s_string, s_single, s_eol, }, // 0xda | |
| 250 { s_single, s_term, s_string, s_single, s_eol, }, // 0xdb | |
| 251 { s_single, s_term, s_string, s_single, s_eol, }, // 0xdc | |
| 252 { s_single, s_term, s_string, s_single, s_eol, }, // 0xdd | |
| 253 { s_single, s_term, s_string, s_single, s_eol, }, // 0xde | |
| 254 { s_single, s_term, s_string, s_single, s_eol, }, // 0xdf | |
| 255 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe0 | |
| 256 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe1 | |
| 257 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe2 | |
| 258 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe3 | |
| 259 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe4 | |
| 260 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe5 | |
| 261 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe6 | |
| 262 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe7 | |
| 263 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe8 | |
| 264 { s_single, s_term, s_string, s_single, s_eol, }, // 0xe9 | |
| 265 { s_single, s_term, s_string, s_single, s_eol, }, // 0xea | |
| 266 { s_single, s_term, s_string, s_single, s_eol, }, // 0xeb | |
| 267 { s_single, s_term, s_string, s_single, s_eol, }, // 0xec | |
| 268 { s_single, s_term, s_string, s_single, s_eol, }, // 0xed | |
| 269 { s_single, s_term, s_string, s_single, s_eol, }, // 0xee | |
| 270 { s_single, s_term, s_string, s_single, s_eol, }, // 0xef | |
| 271 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf0 | |
| 272 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf1 | |
| 273 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf2 | |
| 274 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf3 | |
| 275 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf4 | |
| 276 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf5 | |
| 277 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf6 | |
| 278 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf7 | |
| 279 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf8 | |
| 280 { s_single, s_term, s_string, s_single, s_eol, }, // 0xf9 | |
| 281 { s_single, s_term, s_string, s_single, s_eol, }, // 0xfa | |
| 282 { s_single, s_term, s_string, s_single, s_eol, }, // 0xfb | |
| 283 { s_single, s_term, s_string, s_single, s_eol, }, // 0xfc | |
| 284 { s_single, s_term, s_string, s_single, s_eol, }, // 0xfd | |
| 285 { s_single, s_term, s_string, s_single, s_eol, }, // 0xfe | |
| 286 { s_single, s_term, s_string, s_single, s_eol, }, // 0xff | |
| 287 }; | |
| 288 | |
| 289 | |
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290 TOKEN::TOKEN(const char *fn, string_set *includes) { |
| 0 | 291 pushed = false; |
| 292 include_files = includes; | |
| 293 include(fn); | |
| 294 } | |
| 295 | |
| 296 | |
| 297 TOKEN::~TOKEN() { | |
| 298 while (!streams.empty()) pop(); | |
| 299 } | |
| 300 | |
| 301 | |
| 302 void TOKEN::pop() { | |
| 303 ifstream *is = streams.front(); | |
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304 const char *fn = filenames.front(); |
| 0 | 305 streams.pop_front(); |
| 306 filenamess.erase(fn); | |
| 307 if (filenames.size() > 1) filenames.pop_front(); | |
| 308 if (linenumbers.size() > 1) linenumbers.pop_front(); | |
| 309 is->close(); | |
| 310 delete is; | |
| 311 } | |
| 312 | |
| 313 | |
| 314 void TOKEN::push_char(u_char c) { | |
| 315 pushed = true; | |
| 316 pushed_char = c; | |
| 317 } | |
| 318 | |
| 319 | |
| 320 bool TOKEN::next_char(u_char &uc) { | |
| 321 if (pushed) { | |
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322 uc = (u_char)tolower((char)pushed_char); |
| 0 | 323 pushed = false; |
| 324 return true; | |
| 325 } | |
| 326 while (!streams.empty() && streams.front()->eof()) { | |
| 327 pop(); | |
| 328 } | |
| 329 if (streams.empty()) return false; | |
| 330 ifstream *is = streams.front(); | |
| 331 uc = (u_char)is->get(); | |
| 332 if (is->eof()) return next_char(uc); | |
| 333 if (uc == (u_char)'\n') { | |
| 334 int &line = linenumbers.front(); | |
| 335 line++; | |
| 336 } | |
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337 uc = (u_char)tolower((char)uc); |
| 0 | 338 return true; |
| 339 } | |
| 340 | |
| 341 | |
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342 bool TOKEN::include(const char *fn) { |
| 0 | 343 string_set::iterator i = filenamess.find(fn); |
| 344 if (i != filenamess.end()) { | |
| 345 token_error("redundant or recursive include file detected"); | |
| 346 return false; | |
| 347 } | |
| 348 ifstream *is = new ifstream; | |
| 349 is->open(fn); | |
| 350 if (is->fail()) { | |
| 351 char buf[maxlen]; | |
| 352 snprintf(buf, sizeof(buf), "include file %s not found", fn); | |
| 353 token_error(buf); | |
| 354 return false; | |
| 355 } | |
| 356 string_set &inc = *include_files; | |
| 357 inc.insert(fn); | |
| 358 streams.push_front(is); | |
| 359 filenames.push_front(fn); | |
| 360 filenamess.insert(fn); | |
| 361 linenumbers.push_front(1); | |
| 362 return true; | |
| 363 } | |
| 364 | |
| 365 | |
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366 const char *TOKEN::next() { |
| 0 | 367 if (!pending_tokens.empty()) { |
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368 const char *t = pending_tokens.front(); |
| 0 | 369 pending_tokens.pop_front(); |
| 370 return t; | |
| 371 } | |
| 372 if (streams.empty()) return NULL; | |
| 373 const int PENDING_LIMIT = 1000; | |
| 374 u_char buffer[PENDING_LIMIT]; | |
| 375 int count = 0; | |
| 376 state st = s_init; | |
| 377 while (true) { | |
| 378 if (count == (PENDING_LIMIT-1)) { | |
| 379 token_error("token too long"); | |
| 380 break; | |
| 381 } | |
| 382 if (st >= end_state) { | |
| 383 token_error("finite state machine error"); | |
| 384 break; | |
| 385 } | |
| 386 u_char c; | |
| 387 if (!next_char(c)) break; | |
| 388 st = parse_table[c][st]; | |
| 389 switch (st) { | |
| 390 case s_string: | |
| 391 case s_token: { | |
| 392 buffer[count++] = c; | |
| 393 } break; | |
| 394 | |
| 395 case s_term: { | |
| 396 push_char(c); | |
| 397 st = s_init; | |
| 398 } break; | |
| 399 | |
| 400 case s_string1: { | |
| 401 st = s_string; | |
| 402 } break; | |
| 403 | |
| 404 case s_string2: { | |
| 405 st = s_init; | |
| 406 } break; | |
| 407 | |
| 408 case s_single: { | |
| 409 buffer[count++] = c; | |
| 410 st = s_init; | |
| 411 } break; | |
| 412 | |
| 413 case s_ignore: | |
| 414 case s_eol: { | |
| 415 } break; | |
| 416 | |
| 417 | |
| 418 case s_slash: { | |
| 419 buffer[count++] = c; | |
| 420 if (next_char(c)) { | |
| 421 if (c == (u_char)'/') { | |
| 422 // start of ignore to eol on // | |
| 423 count--; | |
| 424 st = s_eol; | |
| 425 } | |
| 426 else { | |
| 427 // not a // token, just return this single / | |
| 428 push_char(c); | |
| 429 st = s_init; | |
| 430 } | |
| 431 } | |
| 432 else { | |
| 433 // cannot get another char | |
| 434 st = s_init; | |
| 435 } | |
| 436 } break; | |
| 437 | |
| 438 default: { | |
| 439 token_error(); | |
| 440 token_error("unknown state %d %s", st, " "); | |
| 441 } break; | |
| 442 } | |
| 443 if (st == s_init) break; | |
| 444 } | |
| 445 | |
| 446 buffer[count] = '\0'; | |
| 447 if (count == 0) return NULL; | |
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448 const char *t = register_string((char*)buffer); |
| 0 | 449 if (t == token_include) { |
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450 const char *f = next(); // should be file name |
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451 const char *s = next(); // should be semicolon |
| 0 | 452 if (s == token_semi) { |
| 453 include(f); | |
| 454 return next(); | |
| 455 } | |
| 456 else { | |
| 457 push(s); | |
| 458 push(f); | |
| 459 return t; | |
| 460 } | |
| 461 } | |
| 462 return t; | |
| 463 } | |
| 464 | |
| 465 | |
| 466 int TOKEN::nextint() { | |
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467 const char *t = next(); |
| 0 | 468 char *e; |
| 469 long i = strtol(t, &e, 10); | |
| 470 if (*e != '\0') { | |
| 471 token_error("integer", t); | |
| 472 return 0; | |
| 473 } | |
| 474 return (int)i; | |
| 475 } | |
| 476 | |
| 477 | |
| 478 void TOKEN::skipeol() { | |
| 479 while (true) { | |
| 480 u_char c; | |
| 481 if (!next_char(c)) break; | |
| 482 if (c == (u_char)'\n') break; | |
| 483 } | |
| 484 } | |
| 485 | |
| 486 | |
| 487 void TOKEN::token_error(const char *err) { | |
| 488 token_error(); | |
| 489 char buf[maxlen]; | |
| 490 snprintf(buf, sizeof(buf), "%s \n", err); | |
| 491 my_syslog(buf); | |
| 492 } | |
| 493 | |
| 494 | |
| 495 void TOKEN::token_error(const char *fmt, int d, const char *s) { | |
| 496 char buf[maxlen]; | |
| 497 snprintf(buf, sizeof(buf), fmt, d, s); | |
| 498 my_syslog(buf); | |
| 499 } | |
| 500 | |
| 501 | |
| 502 void TOKEN::token_error(const char *fmt, const char *t, const char *h) { | |
| 503 if (!h) h = "null"; | |
| 504 char buf[maxlen]; | |
| 505 snprintf(buf, sizeof(buf), fmt, t, h); | |
| 506 my_syslog(buf); | |
| 507 } | |
| 508 | |
| 509 | |
| 510 void TOKEN::token_error(const char *want, const char *have) { | |
| 511 token_error(); | |
| 512 token_error("expecting %s, found %s", want, have); | |
| 513 } | |
| 514 | |
| 515 | |
| 516 void TOKEN::token_error() { | |
| 517 token_error("syntax error at line %d in file %s -- ", cur_line(), cur_fn()); | |
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518 line_list::iterator j = linenumbers.begin(); |
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519 string_list::const_iterator i = filenames.begin(); |
| 0 | 520 for (; i!=filenames.end(); i++,j++) { |
| 521 if (i != filenames.begin()) { | |
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522 const char *fn = (*i); |
| 0 | 523 int li = (*j); |
| 524 token_error(" included from line %d in file %s -- ", li, fn); | |
| 525 } | |
| 526 } | |
| 527 } | |
| 528 |