git.m6w6.name Git - m6w6/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
  64 %token DASH_OPTION
  65
  66 /* All behavior options */
  67 %token AUTO_EJECT_HOSTS
  68 %token BINARY_PROTOCOL
  69 %token BUFFER_REQUESTS
  70 %token CACHE_LOOKUPS
  71 %token CONNECT_TIMEOUT
  72 %token _CORK
  73 %token DISTRIBUTION
  74 %token HASH
  75 %token HASH_WITH_PREFIX_KEY
  76 %token IO_BYTES_WATERMARK
  77 %token IO_KEY_PREFETCH
  78 %token IO_MSG_WATERMARK
  79 %token KETAMA
  80 %token KETAMA_HASH
  81 %token KETAMA_WEIGHTED
  82 %token NOREPLY
  83 %token NUMBER_OF_REPLICAS
  84 %token POLL_TIMEOUT
  85 %token RANDOMIZE_REPLICA_READ
  86 %token RCV_TIMEOUT
  87 %token RETRY_TIMEOUT
  88 %token SERVER_FAILURE_LIMIT
  89 %token SND_TIMEOUT
  90 %token SOCKET_RECV_SIZE
  91 %token SOCKET_SEND_SIZE
  92 %token SORT_HOSTS
  93 %token SUPPORT_CAS
  94 %token _TCP_NODELAY
  95 %token _TCP_KEEPALIVE
  96 %token _TCP_KEEPIDLE
  97 %token USER_DATA
  98 %token USE_UDP
  99 %token VERIFY_KEY
 100
 101 /* Callbacks */
 102 %token PREFIX_KEY
 103
 104 /* Hash types */
 105 %token MD5
 106 %token CRC
 107 %token FNV1_64
 108 %token FNV1A_64
 109 %token FNV1_32
 110 %token FNV1A_32
 111 %token HSIEH
 112 %token MURMUR
 113 %token JENKINS
 114
 115 /* Distributions */
 116 %token CONSISTENT
 117 %token MODULA
 118 %token RANDOM
 119
 120 %nonassoc ','
 121 %nonassoc '='
 122
 123 %token <number> NUMBER
 124 %token <number> FLOAT
 125 %token <string> HOSTNAME
 126 %token <string> HOSTNAME_WITH_PORT
 127 %token <string> IPADDRESS
 128 %token <string> IPADDRESS_WITH_PORT
 129 %token <string> STRING
 130 %token <string> QUOTED_STRING
 131
 132 %type <server> server
 133 %type <string> string
 134 %type <distribution> distribution
 135 %type <hash> hash
 136 %type <behavior> behavior_boolean
 137 %type <behavior> behavior_number
 138
 139 %%
 140
 141 statement:
 142          DASH_OPTION expression
 143           { }
 144         | statement ' ' DASH_OPTION expression
 145           { }
 146         ;
 147
 148
 149 expression:
 150           SERVER '=' server
 151           {
 152             (void) memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0);
 153           }
 154         | SERVERS '=' server_list
 155           {
 156           }
 157         | behaviors
 158         ;
 159
 160 behaviors:
 161           PREFIX_KEY '=' string
 162           {
 163             memcached_callback_set(parser->memc, MEMCACHED_CALLBACK_PREFIX_KEY, std::string($3.c_str, $3.length).c_str());
 164           }
 165         | DISTRIBUTION '=' distribution
 166           {
 167             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $3);
 168           }
 169         | HASH '=' hash
 170           {
 171             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $3);
 172           }
 173         | KETAMA_HASH '=' hash
 174           {
 175             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_KETAMA_HASH, $3);
 176           }
 177         | behavior_number '=' NUMBER
 178           {
 179             memcached_behavior_set(parser->memc, $1, $3);
 180           }
 181         | behavior_boolean
 182           {
 183             memcached_behavior_set(parser->memc, $1, true);
 184           }
 185         |  USER_DATA
 186           {
 187           }
 188         ;
 189
 190 behavior_number:
 191           CONNECT_TIMEOUT
 192           {
 193             $$= MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT;
 194           }
 195         | IO_MSG_WATERMARK
 196           {
 197             $$= MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK;
 198           }
 199         | IO_BYTES_WATERMARK
 200           {
 201             $$= MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK;
 202           }
 203         | IO_KEY_PREFETCH
 204           {
 205             $$= MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH;
 206           }
 207         | NUMBER_OF_REPLICAS
 208           {
 209             $$= MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS;
 210           }
 211         | POLL_TIMEOUT
 212           {
 213             $$= MEMCACHED_BEHAVIOR_POLL_TIMEOUT;
 214           }
 215         |  RCV_TIMEOUT
 216           {
 217             $$= MEMCACHED_BEHAVIOR_RCV_TIMEOUT;
 218           }
 219         |  RETRY_TIMEOUT
 220           {
 221             $$= MEMCACHED_BEHAVIOR_RETRY_TIMEOUT;
 222           }
 223         |  SERVER_FAILURE_LIMIT
 224           {
 225             $$= MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT;
 226           }
 227         |  SND_TIMEOUT
 228           {
 229             $$= MEMCACHED_BEHAVIOR_SND_TIMEOUT;
 230           }
 231         |  SOCKET_RECV_SIZE
 232           {
 233             $$= MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE;
 234           }
 235         |  SOCKET_SEND_SIZE
 236           {
 237             $$= MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE;
 238           }
 239         ;
 240
 241 behavior_boolean:
 242           AUTO_EJECT_HOSTS
 243           {
 244             $$= MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS;
 245           }
 246         | BINARY_PROTOCOL
 247           {
 248             $$= MEMCACHED_BEHAVIOR_BINARY_PROTOCOL;
 249           }
 250         | BUFFER_REQUESTS
 251           {
 252             $$= MEMCACHED_BEHAVIOR_BUFFER_REQUESTS;
 253           }
 254         | CACHE_LOOKUPS
 255           {
 256             $$= MEMCACHED_BEHAVIOR_CACHE_LOOKUPS;
 257           }
 258         | _CORK
 259           {
 260             $$= MEMCACHED_BEHAVIOR_CORK;
 261           }
 262         | HASH_WITH_PREFIX_KEY
 263           {
 264             $$= MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY;
 265           }
 266         | KETAMA
 267           {
 268             $$= MEMCACHED_BEHAVIOR_KETAMA;
 269           }
 270         | KETAMA_WEIGHTED
 271           {
 272             $$= MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED;
 273           }
 274         | NOREPLY
 275           {
 276             $$= MEMCACHED_BEHAVIOR_NOREPLY;
 277           }
 278         |  RANDOMIZE_REPLICA_READ
 279           {
 280             $$= MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ;
 281           }
 282         |  SORT_HOSTS
 283           {
 284             $$= MEMCACHED_BEHAVIOR_SORT_HOSTS;
 285           }
 286         |  SUPPORT_CAS
 287           {
 288             $$= MEMCACHED_BEHAVIOR_SUPPORT_CAS;
 289           }
 290         |  _TCP_NODELAY
 291           {
 292             $$= MEMCACHED_BEHAVIOR_TCP_NODELAY;
 293           }
 294         |  _TCP_KEEPALIVE
 295           {
 296             $$= MEMCACHED_BEHAVIOR_TCP_KEEPALIVE;
 297           }
 298         |  _TCP_KEEPIDLE
 299           {
 300             $$= MEMCACHED_BEHAVIOR_TCP_KEEPIDLE;
 301           }
 302         |  USE_UDP
 303           {
 304             $$= MEMCACHED_BEHAVIOR_USE_UDP;
 305           }
 306         |  VERIFY_KEY
 307           {
 308             $$= MEMCACHED_BEHAVIOR_VERIFY_KEY;
 309           }
 310
 311
 312 server_list:
 313            server
 314           {
 315             (void) memcached_server_add_parsed(parser->memc, $1.c_str, $1.length, $1.port, 0);
 316           }
 317         | server_list ',' server
 318           {
 319             (void) memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0);
 320           }
 321         ;
 322
 323 server:
 324           HOSTNAME_WITH_PORT NUMBER
 325           {
 326             $$.c_str= $1.c_str;
 327             $$.length= $1.length -1;
 328             $$.port= $2;
 329           }
 330         | HOSTNAME
 331           {
 332             $$.c_str= $1.c_str;
 333             $$.length= $1.length;
 334             $$.port= MEMCACHED_DEFAULT_PORT;
 335           }
 336         | STRING /* a match can be against "localhost" which is just a string */
 337           {
 338             $$.c_str= $1.c_str;
 339             $$.length= $1.length;
 340             $$.port= MEMCACHED_DEFAULT_PORT;
 341           }
 342         | IPADDRESS_WITH_PORT NUMBER
 343           {
 344             $$.c_str= $1.c_str;
 345             $$.length= $1.length -1;
 346             $$.port= $2;
 347           }
 348         | IPADDRESS
 349           {
 350             $$.c_str= $1.c_str;
 351             $$.length= $1.length;
 352             $$.port= MEMCACHED_DEFAULT_PORT;
 353           }
 354         ;
 355
 356 hash:
 357           MD5
 358           {
 359             $$= MEMCACHED_HASH_MD5;
 360           }
 361         | CRC
 362           {
 363             $$= MEMCACHED_HASH_CRC;
 364           }
 365         | FNV1_64
 366           {
 367             $$= MEMCACHED_HASH_FNV1_64;
 368           }
 369         | FNV1A_64
 370           {
 371             $$= MEMCACHED_HASH_FNV1A_64;
 372           }
 373         | FNV1_32
 374           {
 375             $$= MEMCACHED_HASH_FNV1_32;
 376           }
 377         | FNV1A_32
 378           {
 379             $$= MEMCACHED_HASH_FNV1A_32;
 380           }
 381         | HSIEH
 382           {
 383             $$= MEMCACHED_HASH_HSIEH;
 384           }
 385         | MURMUR
 386           {
 387             $$= MEMCACHED_HASH_MURMUR;
 388           }
 389         | JENKINS
 390           {
 391             $$= MEMCACHED_HASH_JENKINS;
 392           }
 393         ;
 394
 395 string:
 396           STRING
 397           {
 398             $$= $1;
 399           }
 400         | QUOTED_STRING
 401           {
 402             $$.c_str= $1.c_str +1;
 403             $$.length= $1.length -2;
 404           }
 405         ;
 406
 407 distribution:
 408           CONSISTENT
 409           {
 410             $$= MEMCACHED_DISTRIBUTION_CONSISTENT;
 411           }
 412         | MODULA
 413           {
 414             $$= MEMCACHED_DISTRIBUTION_MODULA;
 415           }
 416         | RANDOM
 417           {
 418             $$= MEMCACHED_DISTRIBUTION_RANDOM;
 419           }
 420         ;