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