git.m6w6.name Git - awesomized/libmemcached/blob - libmemcached/options/parser.yy

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached Scanner and Parser
   4  *
   5  *  Copyright (C) 2011 DataDifferental, http://datadifferential.com
   6  *
   7  *  This program is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU Affero General Public License as
   9  *  published by the Free Software Foundation, either version 3 of the
  10  *  License, or (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU Affero General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Affero General Public License
  18  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 %{
  22
  23 #include <stdint.h>
  24 #include <iostream>
  25
  26 #include <libmemcached/options/type.h>
  27 #include <libmemcached/options/string.h>
  28 #include <libmemcached/options/symbol.h>
  29
  30 #pragma GCC diagnostic ignored "-Wold-style-cast"
  31 #include <libmemcached/options/scanner.h>
  32
  33 inline void libmemcached_error(YYLTYPE *locp, type_st *parser, yyscan_t *scanner, const char *str)
  34 {
  35   memcached_string_t local_string;
  36   local_string.size= strlen(str);
  37   local_string.c_str= str;
  38   memcached_set_error(parser->memc, MEMCACHED_FAILURE, &local_string);
  39 }
  40
  41
  42 %}
  43
  44 %error-verbose
  45 %debug
  46 %defines
  47 %expect 0
  48 %output "libmemcached/options/parser.cc"
  49 %defines "libmemcached/options/parser.h"
  50 %lex-param { yyscan_t *scanner }
  51 %name-prefix="libmemcached_"
  52 %parse-param { type_st *parser }
  53 %parse-param { yyscan_t *scanner }
  54 %locations
  55 %pure-parser
  56 %require "2.2"
  57 %start statement
  58 %verbose
  59
  60 %token SERVER
  61 %token SERVERS
  62 %token UNKNOWN
  63 %token COMMENT
  64 %token EMPTY_LINE
  65
  66 %token DASH_OPTION
  67
  68 /* All behavior options */
  69 %token AUTO_EJECT_HOSTS
  70 %token BINARY_PROTOCOL
  71 %token BUFFER_REQUESTS
  72 %token CACHE_LOOKUPS
  73 %token CONNECT_TIMEOUT
  74 %token _CORK
  75 %token DISTRIBUTION
  76 %token HASH
  77 %token HASH_WITH_PREFIX_KEY
  78 %token IO_BYTES_WATERMARK
  79 %token IO_KEY_PREFETCH
  80 %token IO_MSG_WATERMARK
  81 %token KETAMA
  82 %token KETAMA_HASH
  83 %token KETAMA_WEIGHTED
  84 %token NOREPLY
  85 %token NUMBER_OF_REPLICAS
  86 %token POLL_TIMEOUT
  87 %token RANDOMIZE_REPLICA_READ
  88 %token RCV_TIMEOUT
  89 %token RETRY_TIMEOUT
  90 %token SERVER_FAILURE_LIMIT
  91 %token SND_TIMEOUT
  92 %token SOCKET_RECV_SIZE
  93 %token SOCKET_SEND_SIZE
  94 %token SORT_HOSTS
  95 %token SUPPORT_CAS
  96 %token _TCP_NODELAY
  97 %token _TCP_KEEPALIVE
  98 %token _TCP_KEEPIDLE
  99 %token USER_DATA
 100 %token USE_UDP
 101 %token VERIFY_KEY
 102
 103 /* Callbacks */
 104 %token PREFIX_KEY
 105
 106 /* Hash types */
 107 %token MD5
 108 %token CRC
 109 %token FNV1_64
 110 %token FNV1A_64
 111 %token FNV1_32
 112 %token FNV1A_32
 113 %token HSIEH
 114 %token MURMUR
 115 %token JENKINS
 116
 117 /* Distributions */
 118 %token CONSISTENT
 119 %token MODULA
 120 %token RANDOM
 121
 122 %nonassoc ','
 123 %nonassoc '='
 124
 125 %token <number> NUMBER
 126 %token <number> FLOAT
 127 %token <string> HOSTNAME
 128 %token <string> HOSTNAME_WITH_PORT
 129 %token <string> IPADDRESS
 130 %token <string> IPADDRESS_WITH_PORT
 131 %token <string> STRING
 132 %token <string> QUOTED_STRING
 133
 134 %type <server> server
 135 %type <string> string
 136 %type <distribution> distribution
 137 %type <hash> hash
 138 %type <behavior> behavior_boolean
 139 %type <behavior> behavior_number
 140
 141 %%
 142
 143 statement:
 144          DASH_OPTION expression
 145           { }
 146         | statement ' ' DASH_OPTION expression
 147           { }
 148         | COMMENT
 149           { }
 150         | EMPTY_LINE
 151           { }
 152         ;
 153
 154
 155 expression:
 156           SERVER '=' server
 157           {
 158             (void) memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0);
 159           }
 160         | SERVERS '=' server_list
 161           {
 162           }
 163         | behaviors
 164         ;
 165
 166 behaviors:
 167           PREFIX_KEY '=' string
 168           {
 169             memcached_callback_set(parser->memc, MEMCACHED_CALLBACK_PREFIX_KEY, std::string($3.c_str, $3.length).c_str());
 170           }
 171         | DISTRIBUTION '=' distribution
 172           {
 173             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $3);
 174           }
 175         | HASH '=' hash
 176           {
 177             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $3);
 178           }
 179         | KETAMA_HASH '=' hash
 180           {
 181             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_KETAMA_HASH, $3);
 182           }
 183         | behavior_number '=' NUMBER
 184           {
 185             memcached_behavior_set(parser->memc, $1, $3);
 186           }
 187         | behavior_boolean
 188           {
 189             memcached_behavior_set(parser->memc, $1, true);
 190           }
 191         |  USER_DATA
 192           {
 193           }
 194         ;
 195
 196 behavior_number:
 197           CONNECT_TIMEOUT
 198           {
 199             $$= MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT;
 200           }
 201         | IO_MSG_WATERMARK
 202           {
 203             $$= MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK;
 204           }
 205         | IO_BYTES_WATERMARK
 206           {
 207             $$= MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK;
 208           }
 209         | IO_KEY_PREFETCH
 210           {
 211             $$= MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH;
 212           }
 213         | NUMBER_OF_REPLICAS
 214           {
 215             $$= MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS;
 216           }
 217         | POLL_TIMEOUT
 218           {
 219             $$= MEMCACHED_BEHAVIOR_POLL_TIMEOUT;
 220           }
 221         |  RCV_TIMEOUT
 222           {
 223             $$= MEMCACHED_BEHAVIOR_RCV_TIMEOUT;
 224           }
 225         |  RETRY_TIMEOUT
 226           {
 227             $$= MEMCACHED_BEHAVIOR_RETRY_TIMEOUT;
 228           }
 229         |  SERVER_FAILURE_LIMIT
 230           {
 231             $$= MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT;
 232           }
 233         |  SND_TIMEOUT
 234           {
 235             $$= MEMCACHED_BEHAVIOR_SND_TIMEOUT;
 236           }
 237         |  SOCKET_RECV_SIZE
 238           {
 239             $$= MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE;
 240           }
 241         |  SOCKET_SEND_SIZE
 242           {
 243             $$= MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE;
 244           }
 245         ;
 246
 247 behavior_boolean:
 248           AUTO_EJECT_HOSTS
 249           {
 250             $$= MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS;
 251           }
 252         | BINARY_PROTOCOL
 253           {
 254             $$= MEMCACHED_BEHAVIOR_BINARY_PROTOCOL;
 255           }
 256         | BUFFER_REQUESTS
 257           {
 258             $$= MEMCACHED_BEHAVIOR_BUFFER_REQUESTS;
 259           }
 260         | CACHE_LOOKUPS
 261           {
 262             $$= MEMCACHED_BEHAVIOR_CACHE_LOOKUPS;
 263           }
 264         | _CORK
 265           {
 266             $$= MEMCACHED_BEHAVIOR_CORK;
 267           }
 268         | HASH_WITH_PREFIX_KEY
 269           {
 270             $$= MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY;
 271           }
 272         | KETAMA
 273           {
 274             $$= MEMCACHED_BEHAVIOR_KETAMA;
 275           }
 276         | KETAMA_WEIGHTED
 277           {
 278             $$= MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED;
 279           }
 280         | NOREPLY
 281           {
 282             $$= MEMCACHED_BEHAVIOR_NOREPLY;
 283           }
 284         |  RANDOMIZE_REPLICA_READ
 285           {
 286             $$= MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ;
 287           }
 288         |  SORT_HOSTS
 289           {
 290             $$= MEMCACHED_BEHAVIOR_SORT_HOSTS;
 291           }
 292         |  SUPPORT_CAS
 293           {
 294             $$= MEMCACHED_BEHAVIOR_SUPPORT_CAS;
 295           }
 296         |  _TCP_NODELAY
 297           {
 298             $$= MEMCACHED_BEHAVIOR_TCP_NODELAY;
 299           }
 300         |  _TCP_KEEPALIVE
 301           {
 302             $$= MEMCACHED_BEHAVIOR_TCP_KEEPALIVE;
 303           }
 304         |  _TCP_KEEPIDLE
 305           {
 306             $$= MEMCACHED_BEHAVIOR_TCP_KEEPIDLE;
 307           }
 308         |  USE_UDP
 309           {
 310             $$= MEMCACHED_BEHAVIOR_USE_UDP;
 311           }
 312         |  VERIFY_KEY
 313           {
 314             $$= MEMCACHED_BEHAVIOR_VERIFY_KEY;
 315           }
 316
 317
 318 server_list:
 319            server
 320           {
 321             (void) memcached_server_add_parsed(parser->memc, $1.c_str, $1.length, $1.port, 0);
 322           }
 323         | server_list ',' server
 324           {
 325             (void) memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0);
 326           }
 327         ;
 328
 329 server:
 330           HOSTNAME_WITH_PORT NUMBER
 331           {
 332             $$.c_str= $1.c_str;
 333             $$.length= $1.length -1;
 334             $$.port= $2;
 335           }
 336         | HOSTNAME
 337           {
 338             $$.c_str= $1.c_str;
 339             $$.length= $1.length;
 340             $$.port= MEMCACHED_DEFAULT_PORT;
 341           }
 342         | STRING /* a match can be against "localhost" which is just a string */
 343           {
 344             $$.c_str= $1.c_str;
 345             $$.length= $1.length;
 346             $$.port= MEMCACHED_DEFAULT_PORT;
 347           }
 348         | IPADDRESS_WITH_PORT NUMBER
 349           {
 350             $$.c_str= $1.c_str;
 351             $$.length= $1.length -1;
 352             $$.port= $2;
 353           }
 354         | IPADDRESS
 355           {
 356             $$.c_str= $1.c_str;
 357             $$.length= $1.length;
 358             $$.port= MEMCACHED_DEFAULT_PORT;
 359           }
 360         ;
 361
 362 hash:
 363           MD5
 364           {
 365             $$= MEMCACHED_HASH_MD5;
 366           }
 367         | CRC
 368           {
 369             $$= MEMCACHED_HASH_CRC;
 370           }
 371         | FNV1_64
 372           {
 373             $$= MEMCACHED_HASH_FNV1_64;
 374           }
 375         | FNV1A_64
 376           {
 377             $$= MEMCACHED_HASH_FNV1A_64;
 378           }
 379         | FNV1_32
 380           {
 381             $$= MEMCACHED_HASH_FNV1_32;
 382           }
 383         | FNV1A_32
 384           {
 385             $$= MEMCACHED_HASH_FNV1A_32;
 386           }
 387         | HSIEH
 388           {
 389             $$= MEMCACHED_HASH_HSIEH;
 390           }
 391         | MURMUR
 392           {
 393             $$= MEMCACHED_HASH_MURMUR;
 394           }
 395         | JENKINS
 396           {
 397             $$= MEMCACHED_HASH_JENKINS;
 398           }
 399         ;
 400
 401 string:
 402           STRING
 403           {
 404             $$= $1;
 405           }
 406         | QUOTED_STRING
 407           {
 408             $$.c_str= $1.c_str +1;
 409             $$.length= $1.length -2;
 410           }
 411         ;
 412
 413 distribution:
 414           CONSISTENT
 415           {
 416             $$= MEMCACHED_DISTRIBUTION_CONSISTENT;
 417           }
 418         | MODULA
 419           {
 420             $$= MEMCACHED_DISTRIBUTION_MODULA;
 421           }
 422         | RANDOM
 423           {
 424             $$= MEMCACHED_DISTRIBUTION_RANDOM;
 425           }
 426         ;