package obus
Pure Ocaml implementation of the D-Bus protocol
Install
Dune Dependency
Authors
Maintainers
Sources
1.2.3.tar.gz
sha256=75703f78015e15d03d0fdba1633a155875daf17d854225658429e72a0df06258
md5=3090a796f0af95e16838d81656ac4b97
doc/src/obus.internals/oBus_name.ml.html
Source file oBus_name.ml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276(* * oBus_name.ml * ------------ * Copyright : (c) 2008, Jeremie Dimino <jeremie@dimino.org> * Licence : BSD3 * * This file is a part of obus, an ocaml implementation of D-Bus. *) open String open OBus_string type bus = string type interface = string type member = string type error = string (* +-----------------------------------------------------------------+ | Bus names | +-----------------------------------------------------------------+ *) let is_unique name = length name > 0 && unsafe_get name 0 = ':' let validate_unique_connection str = let fail i msg = Some{ typ = "unique connection name"; str = str; ofs = i; msg = msg } and len = length str in let rec element_start i = if i = len then fail i "empty element" else match unsafe_get str i with | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' | '0' .. '9'-> element (i + 1) | '.' -> fail i "empty element" | _ -> fail i "invalid character" and element i = if i = len then None else match unsafe_get str i with | '.' -> element_start (i + 1) | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' | '0' .. '9'-> element (i + 1) | _ -> fail i "invalid character" and first_element i = if i = len then fail (-1) "must contains at least two elements" else match unsafe_get str i with | '.' -> element_start (i + 1) | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' | '0' .. '9'-> first_element (i + 1) | _ -> fail i "invalid character" in if len > OBus_protocol.max_name_length then fail (-1) "name too long" else if len = 1 then fail 1 "premature end of name" else match unsafe_get str 1 with | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' | '0' .. '9'-> first_element 2 | '.' -> fail 1 "empty element" | _ -> fail 1 "invalid character" let validate_bus_other str = let fail i msg = Some{ typ = "unique connection name"; str = str; ofs = i; msg = msg } and len = length str in let rec element_start i = if i = len then fail i "empty element" else match unsafe_get str i with | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' -> element (i + 1) | '.' -> fail i "empty element" | _ -> fail i "invalid character" and element i = if i = len then None else match unsafe_get str i with | '.' -> element_start (i + 1) | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' | '0' .. '9'-> element (i + 1) | _ -> fail i "invalid character" and first_element i = if i = len then fail (-1) "must contains at least two elements" else match unsafe_get str i with | '.' -> element_start (i + 1) | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' | '0' .. '9'-> first_element (i + 1) | _ -> fail i "invalid character" in if len > OBus_protocol.max_name_length then fail (-1) "name too long" else match unsafe_get str 1 with | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' | '0' .. '9'-> first_element 2 | '.' -> element_start 2 | _ -> fail 1 "invalid character" let validate_bus = function | "" -> Some{ typ = "bus name"; str = ""; ofs = -1; msg = "empty name" } | str -> match unsafe_get str 0 with | ':' -> validate_unique_connection str | 'A' .. 'Z' | 'a' .. 'z' | '_' | '-' -> validate_bus_other str | '.' -> Some{ typ = "bus name"; str = str; ofs = 0; msg = "empty element" } | _ -> Some{ typ = "bus name"; str = str; ofs = 0; msg = "invalid character" } (* +-----------------------------------------------------------------+ | Interface names | +-----------------------------------------------------------------+ *) let validate_interface str = let fail i msg = Some{ typ = "interface name"; str = str; ofs = i; msg = msg } and len = length str in let rec element_start i = if i = len then fail i "empty element" else match unsafe_get str i with | 'A' .. 'Z' | 'a' .. 'z' | '_' -> element (i + 1) | '.' -> fail i "empty element" | _ -> fail i "invalid character" and element i = if i = len then None else match unsafe_get str i with | '.' -> element_start (i + 1) | 'A' .. 'Z' | 'a' .. 'z' | '_' | '0' .. '9' -> element (i + 1) | _ -> fail i "invalid character" and first_element i = if i = len then fail (-1) "must contains at least two elements" else match unsafe_get str i with | '.' -> element_start (i + 1) | 'A' .. 'Z' | 'a' .. 'z' | '_' | '0' .. '9' -> first_element (i + 1) | _ -> fail i "invalid character" in if len > OBus_protocol.max_name_length then fail (-1) "name too long" else if len = 0 then fail (-1) "empty name" else match unsafe_get str 0 with | 'A' .. 'Z' | 'a' .. 'z' | '_' -> first_element 1 | '.' -> fail 0 "empty element" | _ -> fail 0 "invalid character" (* +-----------------------------------------------------------------+ | Member names | +-----------------------------------------------------------------+ *) let validate_member str = let fail i msg = Some{ typ = "member name"; str = str; ofs = i; msg = msg } and len = length str in let rec aux i = if i = len then None else match unsafe_get str i with | 'A' .. 'Z' | 'a' .. 'z' | '_' | '0' .. '9' -> aux (i + 1) | _ -> fail i "invalid character" in if len > OBus_protocol.max_name_length then fail (-1) "name too long" else if len = 0 then fail (-1) "empty name" else match unsafe_get str 0 with | 'A' .. 'Z' | 'a' .. 'z' | '_' -> aux 1 | _ -> fail 0 "invalid character" (* +-----------------------------------------------------------------+ | Error names | +-----------------------------------------------------------------+ *) let validate_error str = (* Error names have the same restriction as interface names *) match validate_interface str with | None -> None | Some error -> Some{ error with typ = "error name" } (* +-----------------------------------------------------------------+ | Name translation | +-----------------------------------------------------------------+ *) (* Split a name into blocks. Blocks are the longest sub-strings matched by the regulare expression: "[A-Z]*[^A-Z.]*" *) let split name = (* Recognize the first part of a block: "[A-Z]*" *) let rec part1 i = if i = String.length name then i else match name.[i] with | 'A' .. 'Z' -> part1 (i + 1) | _ -> part2 i (* Recognize the second part of a block: "[^A-Z.]*" *) and part2 i = if i = String.length name then i else match name.[i] with | 'A' .. 'Z' | '.' -> i | _ -> part2 (i + 1) in let rec split i = if i = String.length name then [] else let j = part1 i in if j = i then (* Skip empty blocks *) split (i + 1) else String.sub name i (j - i) :: split j in split 0 let ocaml_lid name = String.uncapitalize_ascii (String.concat "_" (List.map String.lowercase_ascii (split name))) let ocaml_uid name = String.capitalize_ascii (String.concat "_" (List.map String.lowercase_ascii (split name))) let haskell_lid name = String.uncapitalize_ascii (String.concat "" (split name)) let haskell_uid name = String.capitalize_ascii (String.concat "" (split name))