git.m6w6.name Git - awesomized/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 #pragma GCC diagnostic ignored "-fpermissive"
  26
  27 #include <iostream>
  28
  29 #include <libmemcached/options/context.h>
  30 #include <libmemcached/options/parser.h>
  31 #include <libmemcached/options/string.h>
  32 #include <libmemcached/options/symbol.h>
  33
  34 #define YY_EXTRA_TYPE Context*
  35 #define YY_USER_ACTION yylloc->first_line = yylineno;
  36
  37 }
  38
  39
  40 %{
  41 #include <cstdlib>
  42 #include <cstring>
  43
  44 #define PARAM yyget_extra(yyscanner)
  45
  46 static void get_lex_chars(char* buffer, int& result, int max_size, Context *context)
  47 {
  48   if (context->pos >= context->length)
  49   {
  50     result= YY_NULL;
  51   }
  52   else
  53   {
  54     result= context->length - context->pos;
  55     result > (int)max_size ? result = max_size : 0;
  56     memcpy(buffer, context->buf + context->pos, result);
  57     context->pos += result;
  58   }
  59 }
  60
  61
  62 #define YY_INPUT(buffer, result, max_size) get_lex_chars(buffer, result, max_size, PARAM)
  63
  64 %}
  65
  66 %option bison-bridge
  67 %option bison-locations
  68 %option case-insensitive
  69 %option debug
  70 %option nounput
  71 %option noyywrap
  72 %option yylineno
  73 %option outfile="libmemcached/options/scanner.cc" header-file="libmemcached/options/scanner.h"
  74 %option perf-report
  75 %option prefix="libmemcached_"
  76 %option reentrant
  77
  78 %%
  79
  80
  81 =|,|[ ]       { return yytext[0];}
  82
  83
  84 [[:digit:]]+ { yylval->number = atoi(yytext); return (NUMBER); }
  85
  86 [\t\r\n] ; /* skip whitespace */
  87
  88 ^#.*$ {
  89       return COMMENT;
  90     }
  91
  92 "--SERVER"                          { yyextra->begin= yytext; return SERVER; }
  93 "--SERVERS"                        { yyextra->begin= yytext; return SERVERS_OPTION; }
  94
  95 "--VERIFY_KEY"                      { yyextra->begin= yytext; return VERIFY_KEY; }
  96 "--VERIFY-KEY"                      { yyextra->begin= yytext; return VERIFY_KEY; }
  97 "--AUTO_EJECT_HOSTS"            { yyextra->begin= yytext; return AUTO_EJECT_HOSTS; }
  98 "--AUTO-EJECT_HOSTS"            { yyextra->begin= yytext; return AUTO_EJECT_HOSTS; }
  99 "--BINARY_PROTOCOL"                     { yyextra->begin= yytext; return BINARY_PROTOCOL; }
 100 "--BINARY-PROTOCOL"                     { yyextra->begin= yytext; return BINARY_PROTOCOL; }
 101 "--BUFFER_REQUESTS"                     { yyextra->begin= yytext; return BUFFER_REQUESTS; }
 102 "--BUFFER-REQUESTS"                     { yyextra->begin= yytext; return BUFFER_REQUESTS; }
 103 "--CACHE_LOOKUPS"                       { yyextra->begin= yytext; return CACHE_LOOKUPS; }
 104 "--CACHE-LOOKUPS"                       { yyextra->begin= yytext; return CACHE_LOOKUPS; }
 105 "--CONFIGURE_FILE"                      { yyextra->begin= yytext; return CONFIGURE_FILE; }
 106 "--CONFIGURE-FILE"                      { yyextra->begin= yytext; return CONFIGURE_FILE; }
 107 "--CONNECT_TIMEOUT"                     { yyextra->begin= yytext; return CONNECT_TIMEOUT; }
 108 "--CONNECT-TIMEOUT"                     { yyextra->begin= yytext; return CONNECT_TIMEOUT; }
 109 "--CORK"                                { yyextra->begin= yytext; return _CORK; }
 110 "--DISTRIBUTION"                        { yyextra->begin= yytext; return DISTRIBUTION; }
 111 "--HASH"                                { yyextra->begin= yytext; return HASH; }
 112 "--HASH_WITH_PREFIX_KEY"                { yyextra->begin= yytext; return HASH_WITH_PREFIX_KEY; }
 113 "--HASH-WITH-PREFIX_KEY"                { yyextra->begin= yytext; return HASH_WITH_PREFIX_KEY; }
 114 "--IO_BYTES_WATERMARK"          { yyextra->begin= yytext; return IO_BYTES_WATERMARK; }
 115 "--IO-BYTES-WATERMARK"          { yyextra->begin= yytext; return IO_BYTES_WATERMARK; }
 116 "--IO_KEY_PREFETCH"                     { yyextra->begin= yytext; return IO_KEY_PREFETCH; }
 117 "--IO-KEY-PREFETCH"                     { yyextra->begin= yytext; return IO_KEY_PREFETCH; }
 118 "--IO_MSG_WATERMARK"            { yyextra->begin= yytext; return IO_MSG_WATERMARK; }
 119 "--IO-MSG-WATERMARK"            { yyextra->begin= yytext; return IO_MSG_WATERMARK; }
 120 "--KETAMA"                              { yyextra->begin= yytext; return KETAMA; }
 121 "--KETAMA_HASH"                 { yyextra->begin= yytext; return KETAMA_HASH; }
 122 "--KETAMA-HASH"                 { yyextra->begin= yytext; return KETAMA_HASH; }
 123 "--KETAMA_WEIGHTED"                     { yyextra->begin= yytext; return KETAMA_WEIGHTED; }
 124 "--KETAMA-WEIGHTED"                     { yyextra->begin= yytext; return KETAMA_WEIGHTED; }
 125 "--NOREPLY"                         { yyextra->begin= yytext; return NOREPLY; }
 126 "--NUMBER_OF_REPLICAS"          { yyextra->begin= yytext; return NUMBER_OF_REPLICAS; }
 127 "--NUMBER-OF-REPLICAS"          { yyextra->begin= yytext; return NUMBER_OF_REPLICAS; }
 128 "--POLL_TIMEOUT"                        { yyextra->begin= yytext; return POLL_TIMEOUT; }
 129 "--POLL-TIMEOUT"                        { yyextra->begin= yytext; return POLL_TIMEOUT; }
 130 "--RANDOMIZE_REPLICA_READ"              { yyextra->begin= yytext; return RANDOMIZE_REPLICA_READ; }
 131 "--RANDOMIZE-REPLICA-READ"              { yyextra->begin= yytext; return RANDOMIZE_REPLICA_READ; }
 132 "--RCV_TIMEOUT"                 { yyextra->begin= yytext; return RCV_TIMEOUT; }
 133 "--RCV-TIMEOUT"                 { yyextra->begin= yytext; return RCV_TIMEOUT; }
 134 "--RETRY_TIMEOUT"                       { yyextra->begin= yytext; return RETRY_TIMEOUT; }
 135 "--RETRY-TIMEOUT"                       { yyextra->begin= yytext; return RETRY_TIMEOUT; }
 136 "--SERVER_FAILURE_LIMIT"                { yyextra->begin= yytext; return SERVER_FAILURE_LIMIT; }
 137 "--SERVER-FAILURE-LIMIT"                { yyextra->begin= yytext; return SERVER_FAILURE_LIMIT; }
 138 "--SND_TIMEOUT"                 { yyextra->begin= yytext; return SND_TIMEOUT; }
 139 "--SND-TIMEOUT"                 { yyextra->begin= yytext; return SND_TIMEOUT; }
 140 "--SOCKET_RECV_SIZE"            { yyextra->begin= yytext; return SOCKET_RECV_SIZE; }
 141 "--SOCKET-RECV-SIZE"            { yyextra->begin= yytext; return SOCKET_RECV_SIZE; }
 142 "--SOCKET_SEND_SIZE"            { yyextra->begin= yytext; return SOCKET_SEND_SIZE; }
 143 "--SOCKET-SEND-SIZE"            { yyextra->begin= yytext; return SOCKET_SEND_SIZE; }
 144 "--SORT_HOSTS"                  { yyextra->begin= yytext; return SORT_HOSTS; }
 145 "--SORT-HOSTS"                  { yyextra->begin= yytext; return SORT_HOSTS; }
 146 "--SUPPORT_CAS"                 { yyextra->begin= yytext; return SUPPORT_CAS; }
 147 "--SUPPORT-CAS"                 { yyextra->begin= yytext; return SUPPORT_CAS; }
 148 "--TCP_NODELAY"                 { yyextra->begin= yytext; return _TCP_NODELAY; }
 149 "--TCP-NODELAY"                 { yyextra->begin= yytext; return _TCP_NODELAY; }
 150 "--TCP_KEEPALIVE"                       { yyextra->begin= yytext; return _TCP_KEEPALIVE; }
 151 "--TCP-KEEPALIVE"                       { yyextra->begin= yytext; return _TCP_KEEPALIVE; }
 152 "--TCP_KEEPIDLE"                        { yyextra->begin= yytext; return _TCP_KEEPIDLE; }
 153 "--TCP-KEEPIDLE"                        { yyextra->begin= yytext; return _TCP_KEEPIDLE; }
 154 "--USER_DATA"                   { yyextra->begin= yytext; return USER_DATA; }
 155 "--USER-DATA"                   { yyextra->begin= yytext; return USER_DATA; }
 156 "--USE_UDP"                             { yyextra->begin= yytext; return USE_UDP; }
 157 "--USE-UDP"                             { yyextra->begin= yytext; return USE_UDP; }
 158
 159 "--PREFIX-KEY"                          { yyextra->begin= yytext; return PREFIX_KEY; }
 160 "--PREFIX_KEY"                          { yyextra->begin= yytext; return PREFIX_KEY; }
 161
 162 INCLUDE           { yyextra->begin= yytext; std::cerr << "Found INCLUDE" << std::endl; return INCLUDE; }
 163 RESET           { yyextra->begin= yytext; return RESET; }
 164 DEBUG           { yyextra->begin= yytext; return DEBUG; }
 165 SERVERS           { yyextra->begin= yytext; return SERVERS; }
 166 END           { yyextra->begin= yytext; return END; }
 167
 168 TRUE           { return TRUE; }
 169 FALSE           { return FALSE; }
 170
 171
 172 "--"[[:alnum:]]*   {
 173       yyextra->begin= yytext;
 174       return UNKNOWN_OPTION;
 175     }
 176
 177 CONSISTENT      { return CONSISTENT; }
 178 MODULA          { return MODULA; }
 179 RANDOM          { return RANDOM; }
 180
 181 MD5                     { return MD5; }
 182 CRC                     { return CRC; }
 183 FNV1_64                 { return FNV1_64; }
 184 FNV1A_64                        { return FNV1A_64; }
 185 FNV1_32                 { return FNV1_32; }
 186 FNV1A_32                        { return FNV1A_32; }
 187 HSIEH                   { return HSIEH; }
 188 MURMUR                  { return MURMUR; }
 189 JENKINS                 { return JENKINS; }
 190
 191 [[:alnum:]][[:alnum:].]*[[:alpha:]]: {
 192       yylval->string.c_str = yytext;
 193       yylval->string.length = yyleng;
 194       return HOSTNAME_WITH_PORT;
 195     }
 196
 197 [[:alnum:]]+"."[[:alpha:].]+[[:alnum:]] {
 198       yylval->string.c_str = yytext;
 199       yylval->string.length = yyleng;
 200       return HOSTNAME;
 201     }
 202
 203 (([[:digit:]]{1,3}"."){3}([[:digit:]]{1,3})): {
 204       yylval->string.c_str = yytext;
 205       yylval->string.length = yyleng;
 206       return IPADDRESS_WITH_PORT;
 207     }
 208
 209 (([[:digit:]]{1,3}"."){3}([[:digit:]]{1,3})) {
 210       yylval->string.c_str = yytext;
 211       yylval->string.length = yyleng;
 212       return IPADDRESS;
 213     }
 214
 215 [[:alnum:]]+ {
 216       yylval->string.c_str = yytext;
 217       yylval->string.length = yyleng;
 218       return STRING;
 219     }
 220
 221 (\".*\") {
 222       yylval->string.c_str = yytext;
 223       yylval->string.length = yyleng;
 224       return QUOTED_STRING;
 225     }
 226
 227 .   {
 228       yyextra->begin= yytext;
 229       return UNKNOWN;
 230     }
 231
 232 %%
 233
 234 void Context::init_scanner()
 235 {
 236   yylex_init(&scanner);
 237   yyset_extra(this, scanner);
 238 }
 239
 240 void Context::destroy_scanner()
 241 {
 242   yylex_destroy(scanner);
 243 }