git.m6w6.name Git - m6w6/libmemcached/blob - libmemcached/options/scanner.l

   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 %top{
  22
  23 #pragma GCC diagnostic ignored "-Wold-style-cast"
  24 #pragma GCC diagnostic ignored "-Wunused-parameter"
  25
  26 #include <libmemcached/options/context.h>
  27 #include <libmemcached/options/parser.h>
  28 #include <libmemcached/options/string.h>
  29 #include <libmemcached/options/symbol.h>
  30
  31 #define YY_EXTRA_TYPE Context*
  32
  33 }
  34
  35
  36 %{
  37 #include <cstdlib>
  38 #include <cstring>
  39
  40 #define PARAM yyget_extra(yyscanner)
  41
  42 #define get_lex_chars(buffer, result, max_size, context) \
  43 { \
  44   if (context->pos >= context->length) \
  45   { \
  46     result= YY_NULL; \
  47   } \
  48   else \
  49   { \
  50     result= (int)(context->length - context->pos); \
  51     (size_t)result > (size_t)max_size ? result= max_size : 0; \
  52     memcpy(buffer, context->buf + context->pos, result); \
  53     context->pos += result; \
  54   } \
  55 }
  56
  57
  58 #define YY_INPUT(buffer, result, max_size) get_lex_chars(buffer, result, max_size, PARAM)
  59
  60 %}
  61
  62 %option 8bit
  63 %option bison-bridge
  64 %option case-insensitive
  65 %option debug
  66 %option nounput
  67 %option noyywrap
  68 %option outfile="libmemcached/options/scanner.cc" header-file="libmemcached/options/scanner.h"
  69 %option perf-report
  70 %option prefix="config_"
  71 %option reentrant
  72
  73 %%
  74
  75
  76 =|,|[ ]       { return yytext[0];}
  77
  78 [[:digit:]]+ { yylval->number = atoi(yytext); return (NUMBER); }
  79
  80 :[[:digit:]]{1,5} { yylval->server.port = atoi(yytext +1); return PORT; }
  81
  82 "/?"[[:digit:]]{1,5} { yylval->server.weight = atoi(yytext +2); return WEIGHT_START; }
  83
  84 [\t\r\n] ; /* skip whitespace */
  85
  86
  87 ^#.*$ {
  88       return COMMENT;
  89     }
  90
  91 "--SERVER="                          { yyextra->begin= yytext; yyextra->set_server(); return SERVER; }
  92
  93 "--VERIFY_KEY"                      { yyextra->begin= yytext; return VERIFY_KEY; }
  94 "--VERIFY-KEY"                      { yyextra->begin= yytext; return VERIFY_KEY; }
  95 "--AUTO_EJECT_HOSTS"            { yyextra->begin= yytext; return AUTO_EJECT_HOSTS; }
  96 "--AUTO-EJECT_HOSTS"            { yyextra->begin= yytext; return AUTO_EJECT_HOSTS; }
  97 "--BINARY_PROTOCOL"                     { yyextra->begin= yytext; return BINARY_PROTOCOL; }
  98 "--BINARY-PROTOCOL"                     { yyextra->begin= yytext; return BINARY_PROTOCOL; }
  99 "--BUFFER_REQUESTS"                     { yyextra->begin= yytext; return BUFFER_REQUESTS; }
 100 "--BUFFER-REQUESTS"                     { yyextra->begin= yytext; return BUFFER_REQUESTS; }
 101 "--CONFIGURE_FILE="                     { yyextra->begin= yytext; return CONFIGURE_FILE; }
 102 "--CONFIGURE-FILE="                     { yyextra->begin= yytext; return CONFIGURE_FILE; }
 103 "--CONNECT_TIMEOUT="                    { yyextra->begin= yytext; return CONNECT_TIMEOUT; }
 104 "--CONNECT-TIMEOUT="                    { yyextra->begin= yytext; return CONNECT_TIMEOUT; }
 105 "--DISTRIBUTION="                       { yyextra->begin= yytext; return DISTRIBUTION; }
 106 "--HASH="                               { yyextra->begin= yytext; return HASH; }
 107 "--HASH_WITH_PREFIX_KEY"                { yyextra->begin= yytext; return HASH_WITH_PREFIX_KEY; }
 108 "--HASH-WITH-PREFIX_KEY"                { yyextra->begin= yytext; return HASH_WITH_PREFIX_KEY; }
 109 "--IO_BYTES_WATERMARK="         { yyextra->begin= yytext; return IO_BYTES_WATERMARK; }
 110 "--IO-BYTES-WATERMARK="         { yyextra->begin= yytext; return IO_BYTES_WATERMARK; }
 111 "--IO_KEY_PREFETCH="                    { yyextra->begin= yytext; return IO_KEY_PREFETCH; }
 112 "--IO-KEY-PREFETCH="                    { yyextra->begin= yytext; return IO_KEY_PREFETCH; }
 113 "--IO_MSG_WATERMARK="           { yyextra->begin= yytext; return IO_MSG_WATERMARK; }
 114 "--IO-MSG-WATERMARK="           { yyextra->begin= yytext; return IO_MSG_WATERMARK; }
 115 "--NOREPLY"                         { yyextra->begin= yytext; return NOREPLY; }
 116 "--NUMBER_OF_REPLICAS="         { yyextra->begin= yytext; return NUMBER_OF_REPLICAS; }
 117 "--NUMBER-OF-REPLICAS="         { yyextra->begin= yytext; return NUMBER_OF_REPLICAS; }
 118 "--POLL_TIMEOUT="                       { yyextra->begin= yytext; return POLL_TIMEOUT; }
 119 "--POLL-TIMEOUT="                       { yyextra->begin= yytext; return POLL_TIMEOUT; }
 120 "--RANDOMIZE_REPLICA_READ"              { yyextra->begin= yytext; return RANDOMIZE_REPLICA_READ; }
 121 "--RANDOMIZE-REPLICA-READ"              { yyextra->begin= yytext; return RANDOMIZE_REPLICA_READ; }
 122 "--RCV_TIMEOUT="                        { yyextra->begin= yytext; return RCV_TIMEOUT; }
 123 "--RCV-TIMEOUT="                        { yyextra->begin= yytext; return RCV_TIMEOUT; }
 124 "--RETRY_TIMEOUT="                      { yyextra->begin= yytext; return RETRY_TIMEOUT; }
 125 "--RETRY-TIMEOUT="                      { yyextra->begin= yytext; return RETRY_TIMEOUT; }
 126 "--SERVER_FAILURE_LIMIT="               { yyextra->begin= yytext; return SERVER_FAILURE_LIMIT; }
 127 "--SERVER-FAILURE-LIMIT="               { yyextra->begin= yytext; return SERVER_FAILURE_LIMIT; }
 128 "--SND_TIMEOUT="                        { yyextra->begin= yytext; return SND_TIMEOUT; }
 129 "--SND-TIMEOUT="                        { yyextra->begin= yytext; return SND_TIMEOUT; }
 130 "--SOCKET_RECV_SIZE="           { yyextra->begin= yytext; return SOCKET_RECV_SIZE; }
 131 "--SOCKET-RECV-SIZE="           { yyextra->begin= yytext; return SOCKET_RECV_SIZE; }
 132 "--SOCKET_SEND_SIZE="           { yyextra->begin= yytext; return SOCKET_SEND_SIZE; }
 133 "--SOCKET-SEND-SIZE="           { yyextra->begin= yytext; return SOCKET_SEND_SIZE; }
 134 "--SORT_HOSTS"                  { yyextra->begin= yytext; return SORT_HOSTS; }
 135 "--SORT-HOSTS"                  { yyextra->begin= yytext; return SORT_HOSTS; }
 136 "--SUPPORT_CAS"                 { yyextra->begin= yytext; return SUPPORT_CAS; }
 137 "--SUPPORT-CAS"                 { yyextra->begin= yytext; return SUPPORT_CAS; }
 138 "--TCP_NODELAY"                 { yyextra->begin= yytext; return _TCP_NODELAY; }
 139 "--TCP-NODELAY"                 { yyextra->begin= yytext; return _TCP_NODELAY; }
 140 "--TCP_KEEPALIVE"                       { yyextra->begin= yytext; return _TCP_KEEPALIVE; }
 141 "--TCP-KEEPALIVE"                       { yyextra->begin= yytext; return _TCP_KEEPALIVE; }
 142 "--TCP_KEEPIDLE"                        { yyextra->begin= yytext; return _TCP_KEEPIDLE; }
 143 "--TCP-KEEPIDLE"                        { yyextra->begin= yytext; return _TCP_KEEPIDLE; }
 144 "--USER_DATA"                   { yyextra->begin= yytext; return USER_DATA; }
 145 "--USER-DATA"                   { yyextra->begin= yytext; return USER_DATA; }
 146 "--USE_UDP"                             { yyextra->begin= yytext; return USE_UDP; }
 147 "--USE-UDP"                             { yyextra->begin= yytext; return USE_UDP; }
 148
 149 "--PREFIX-KEY="                         { yyextra->begin= yytext; return PREFIX_KEY; }
 150 "--PREFIX_KEY="                         { yyextra->begin= yytext; return PREFIX_KEY; }
 151
 152 INCLUDE           { yyextra->begin= yytext; return INCLUDE; }
 153 RESET           { yyextra->begin= yytext; return RESET; }
 154 DEBUG           { yyextra->begin= yytext; return PARSER_DEBUG; }
 155 SERVERS           { yyextra->begin= yytext; return SERVERS; }
 156 END           { yyextra->begin= yytext; return END; }
 157 ERROR           { yyextra->begin= yytext; return ERROR; }
 158
 159 TRUE           { return TRUE; }
 160 FALSE           { return FALSE; }
 161
 162
 163 "--"[[:alnum:]]*   {
 164       yyextra->begin= yytext;
 165       return UNKNOWN_OPTION;
 166     }
 167
 168 CONSISTENT      { return CONSISTENT; }
 169 MODULA          { return MODULA; }
 170 RANDOM          { return RANDOM; }
 171
 172 MD5                     { return MD5; }
 173 CRC                     { return CRC; }
 174 FNV1_64                 { return FNV1_64; }
 175 FNV1A_64                        { return FNV1A_64; }
 176 FNV1_32                 { return FNV1_32; }
 177 FNV1A_32                        { return FNV1A_32; }
 178 HSIEH                   { return HSIEH; }
 179 MURMUR                  { return MURMUR; }
 180 JENKINS                 { return JENKINS; }
 181
 182 (([[:digit:]]{1,3}"."){3}([[:digit:]]{1,3})) {
 183       yylval->server.port= MEMCACHED_DEFAULT_PORT;
 184       yylval->server.weight= 1;
 185       yylval->server.c_str= yyextra->set_hostname(yytext, yyleng);
 186       if (yylval->server.c_str)
 187         yylval->server.length= yyleng;
 188       return IPADDRESS;
 189     }
 190
 191 [[:alnum:]]["."[:alnum:]_-]+[[:alnum:]] {
 192       if (yyextra->is_server())
 193       {
 194         yylval->server.port= MEMCACHED_DEFAULT_PORT;
 195         yylval->server.weight= 1;
 196         yylval->server.c_str= yyextra->set_hostname(yytext, yyleng);
 197         if (yylval->server.c_str)
 198           yylval->server.length= yyleng;
 199
 200         return HOSTNAME;
 201       }
 202
 203       yylval->string.c_str = yytext;
 204       yylval->string.length = yyleng;
 205
 206       return STRING;
 207     }
 208
 209 (\".*\") {
 210       yylval->string.c_str = yytext;
 211       yylval->string.length = yyleng;
 212       return QUOTED_STRING;
 213     }
 214
 215 .   {
 216       yyextra->begin= yytext;
 217       return UNKNOWN;
 218     }
 219
 220 %%
 221
 222 void Context::init_scanner()
 223 {
 224   yylex_init(&scanner);
 225   yyset_extra(this, scanner);
 226 }
 227
 228 void Context::destroy_scanner()
 229 {
 230   yylex_destroy(scanner);
 231 }
 232