git.m6w6.name Git - m6w6/libmemcached/blob - src/libmemcached/csl/scanner.l

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached library
   4  *
   5  *  Copyright (C) 2012 Data Differential, http://datadifferential.com/
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
   8  *  modification, are permitted provided that the following conditions are
   9  *  met:
  10  *
  11  *      * Redistributions of source code must retain the above copyright
  12  *  notice, this list of conditions and the following disclaimer.
  13  *
  14  *      * Redistributions in binary form must reproduce the above
  15  *  copyright notice, this list of conditions and the following disclaimer
  16  *  in the documentation and/or other materials provided with the
  17  *  distribution.
  18  *
  19  *      * The names of its contributors may not be used to endorse or
  20  *  promote products derived from this software without specific prior
  21  *  written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  26  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  27  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  28  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  29  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  30  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  *
  35  */
  36
  37
  38 %top{
  39
  40 #include <libmemcached/csl/common.h>
  41 #include <libmemcached/csl/context.h>
  42 #include <libmemcached/csl/parser.h>
  43 #include <libmemcached/csl/symbol.h>
  44
  45 #ifndef __INTEL_COMPILER
  46 #pragma GCC diagnostic ignored "-Wold-style-cast"
  47 #pragma GCC diagnostic ignored "-Wsign-compare"
  48 #pragma GCC diagnostic ignored "-Wunused-parameter"
  49 #pragma GCC diagnostic ignored "-Wmissing-declarations"
  50 #pragma GCC diagnostic ignored "-Wunused-result"
  51 #pragma GCC diagnostic ignored "-Wmissing-noreturn"
  52 #endif
  53
  54 #ifdef __clang__
  55 #pragma GCC diagnostic ignored "-Wshorten-64-to-32"
  56 #endif
  57
  58 #ifndef __INTEL_COMPILER
  59 #ifndef __clang__
  60 #pragma GCC diagnostic ignored "-Wlogical-op"
  61 #endif
  62 #endif
  63
  64 }
  65
  66
  67 %{
  68 #define PARAM yyget_extra(yyscanner)
  69
  70 #define get_lex_chars(buffer, result, max_size, context) \
  71 { \
  72   if (context->pos >= context->length) \
  73   { \
  74     result= YY_NULL; \
  75   } \
  76   else \
  77   { \
  78     result= (int)(context->length - context->pos); \
  79     (size_t)result > (size_t)max_size ? result= max_size : 0; \
  80     memcpy(buffer, context->buf + context->pos, result); \
  81     context->pos += result; \
  82   } \
  83 }
  84
  85 #define YY_FATAL_ERROR(msg) \
  86 { \
  87 }
  88
  89 #define YYSTYPE CONFIG_STYPE
  90
  91 #define YY_INPUT(buffer, result, max_size) get_lex_chars(buffer, result, max_size, PARAM)
  92
  93 %}
  94
  95 %option nostdinit
  96 %option 8bit
  97 %option warn
  98 %option bison-bridge
  99 %option never-interactive
 100 %option case-insensitive
 101 %option nodefault
 102 %option noinput
 103 %option nounput
 104 %option noyywrap
 105 %option perf-report
 106 %option prefix="config_"
 107 %option reentrant
 108
 109 %%
 110
 111
 112 =|,|[ ]       { return yytext[0];}
 113
 114 [[:digit:]]+ { yylval->number= atoi(yytext); return (NUMBER); }
 115
 116 :[[:digit:]]{1,5} { yylval->number= atoi(yytext +1); return PORT; }
 117
 118 "/?"[[:digit:]]{1,5} { yylval->number= atoi(yytext +2); return WEIGHT_START; }
 119
 120 [\t\r\n] ; /* skip whitespace */
 121
 122
 123 ^#.*$ {
 124       return COMMENT;
 125     }
 126
 127 "--SERVER="                          { yyextra->begin= yytext; yyextra->set_server(); return yyextra->previous_token= SERVER; }
 128
 129 "--SOCKET="                          { yyextra->begin= yytext; return yyextra->previous_token= CSL_SOCKET; }
 130
 131 "--BINARY-PROTOCOL"                     { yyextra->begin= yytext; return yyextra->previous_token= BINARY_PROTOCOL; }
 132 "--BUFFER-REQUESTS"                     { yyextra->begin= yytext; return yyextra->previous_token= BUFFER_REQUESTS; }
 133 "--CONFIGURE-FILE="                     { yyextra->begin= yytext; return yyextra->previous_token= CONFIGURE_FILE; }
 134 "--CONNECT-TIMEOUT="                    { yyextra->begin= yytext; return yyextra->previous_token= CONNECT_TIMEOUT; }
 135 "--DISTRIBUTION="                       { yyextra->begin= yytext; return yyextra->previous_token= DISTRIBUTION; }
 136 "--HASH-WITH-NAMESPACE"         { yyextra->begin= yytext; return yyextra->previous_token= HASH_WITH_NAMESPACE; }
 137 "--HASH="                               { yyextra->begin= yytext; return yyextra->previous_token= HASH; }
 138 "--IO-BYTES-WATERMARK="         { yyextra->begin= yytext; return yyextra->previous_token= IO_BYTES_WATERMARK; }
 139 "--IO-KEY-PREFETCH="                    { yyextra->begin= yytext; return yyextra->previous_token= IO_KEY_PREFETCH; }
 140 "--IO-MSG-WATERMARK="           { yyextra->begin= yytext; return yyextra->previous_token= IO_MSG_WATERMARK; }
 141 "--NOREPLY"                         { yyextra->begin= yytext; return yyextra->previous_token= NOREPLY; }
 142 "--NUMBER-OF-REPLICAS="         { yyextra->begin= yytext; return yyextra->previous_token= NUMBER_OF_REPLICAS; }
 143 "--POLL-TIMEOUT="                       { yyextra->begin= yytext; return yyextra->previous_token= POLL_TIMEOUT; }
 144 "--RANDOMIZE-REPLICA-READ"              { yyextra->begin= yytext; return yyextra->previous_token= RANDOMIZE_REPLICA_READ; }
 145 "--RCV-TIMEOUT="                        { yyextra->begin= yytext; return yyextra->previous_token= RCV_TIMEOUT; }
 146 "--REMOVE-FAILED-SERVERS="                      { yyextra->begin= yytext; return yyextra->previous_token= REMOVE_FAILED_SERVERS; }
 147 "--RETRY-TIMEOUT="                      { yyextra->begin= yytext; return yyextra->previous_token= RETRY_TIMEOUT; }
 148 "--SND-TIMEOUT="                        { yyextra->begin= yytext; return yyextra->previous_token= SND_TIMEOUT; }
 149 "--SOCKET-RECV-SIZE="           { yyextra->begin= yytext; return yyextra->previous_token= SOCKET_RECV_SIZE; }
 150 "--SOCKET-SEND-SIZE="           { yyextra->begin= yytext; return yyextra->previous_token= SOCKET_SEND_SIZE; }
 151 "--SORT-HOSTS"                  { yyextra->begin= yytext; return yyextra->previous_token= SORT_HOSTS; }
 152 "--SUPPORT-CAS"                 { yyextra->begin= yytext; return yyextra->previous_token= SUPPORT_CAS; }
 153 "--TCP-KEEPALIVE"                       { yyextra->begin= yytext; return yyextra->previous_token= _TCP_KEEPALIVE; }
 154 "--TCP-KEEPIDLE"                        { yyextra->begin= yytext; return yyextra->previous_token= _TCP_KEEPIDLE; }
 155 "--TCP-NODELAY"                 { yyextra->begin= yytext; return yyextra->previous_token= _TCP_NODELAY; }
 156 "--USE-UDP"                             { yyextra->begin= yytext; return yyextra->previous_token= USE_UDP; }
 157 "--USER-DATA"                   { yyextra->begin= yytext; return yyextra->previous_token= USER_DATA; }
 158 "--VERIFY-KEY"                      { yyextra->begin= yytext; return yyextra->previous_token= VERIFY_KEY; }
 159
 160 "--POOL-MIN="                           { yyextra->begin= yytext; return yyextra->previous_token= POOL_MIN; }
 161 "--POOL-MAX="                           { yyextra->begin= yytext; return yyextra->previous_token= POOL_MAX; }
 162
 163 "--NAMESPACE="                          { yyextra->begin= yytext; return yyextra->previous_token= NAMESPACE; }
 164
 165 "--FETCH-VERSION"                               { yyextra->begin= yytext; return yyextra->previous_token= FETCH_VERSION; }
 166
 167 INCLUDE           { yyextra->begin= yytext; return yyextra->previous_token= INCLUDE; }
 168 RESET           { yyextra->begin= yytext; return yyextra->previous_token= RESET; }
 169 DEBUG           { yyextra->begin= yytext; return yyextra->previous_token= PARSER_DEBUG; }
 170 SERVERS           { yyextra->begin= yytext; return yyextra->previous_token= SERVERS; }
 171 END           { yyextra->begin= yytext; return yyextra->previous_token= END; }
 172 CSL_ERROR           { yyextra->begin= yytext; return yyextra->previous_token= CSL_ERROR; }
 173
 174 TRUE           { return yyextra->previous_token= CSL_TRUE; }
 175 FALSE           { return yyextra->previous_token= CSL_FALSE; }
 176
 177
 178 "--"[[:alnum:]]*   {
 179       yyextra->begin= yytext;
 180       return UNKNOWN_OPTION;
 181     }
 182
 183 CONSISTENT      { return CONSISTENT; }
 184 MODULA          { return MODULA; }
 185 RANDOM          { return RANDOM; }
 186
 187 MD5                     { return MD5; }
 188 CRC                     { return CRC; }
 189 FNV1_64                 { return FNV1_64; }
 190 FNV1A_64                        { return FNV1A_64; }
 191 FNV1_32                 { return FNV1_32; }
 192 FNV1A_32                        { return FNV1A_32; }
 193 HSIEH                   { return HSIEH; }
 194 MURMUR                  { return MURMUR; }
 195 JENKINS                 { return JENKINS; }
 196
 197 (([[:digit:]]{1,3}"."){3}([[:digit:]]{1,3})) {
 198       yyextra->hostname(yytext, yyleng, yylval->server);
 199       return IPADDRESS;
 200     }
 201
 202 [[:alnum:]]["."[:alnum:]_-]+[[:alnum:]] {
 203       if (yyextra->is_server())
 204       {
 205         yyextra->hostname(yytext, yyleng, yylval->server);
 206
 207         return HOSTNAME;
 208       }
 209
 210       yyextra->string_buffer(yytext, yyleng, yylval->string);
 211
 212       return STRING;
 213     }
 214
 215 L?\"(\\.|[^\\"])*\" {
 216       yyget_text(yyscanner)[yyleng -1]= 0;
 217       yyextra->string_buffer(yytext +1, yyleng -2, yylval->string);
 218       return QUOTED_STRING;
 219     }
 220
 221 .   {
 222       yyextra->begin= yytext;
 223       return UNKNOWN;
 224     }
 225
 226 %%
 227
 228 void Context::init_scanner()
 229 {
 230   yylex_init(&scanner);
 231   yyset_extra(this, scanner);
 232 }
 233
 234 void Context::destroy_scanner()
 235 {
 236   (void)yy_fatal_error; // Removes warning about unused yy_fatal_error()
 237   yylex_destroy(scanner);
 238 }
 239