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

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Configure Scripting Language
   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/csl/common.h>
  24 #include <libmemcached/csl/context.h>
  25 #include <libmemcached/csl/parser.h>
  26 #include <libmemcached/csl/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/csl/scanner.cc" header-file="libmemcached/csl/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 yyextra->previous_token= SERVER; }
  93
  94 "--SOCKET="                          { yyextra->begin= yytext; return yyextra->previous_token= SOCKET; }
  95
  96 "--BINARY-PROTOCOL"                     { yyextra->begin= yytext; return yyextra->previous_token= BINARY_PROTOCOL; }
  97 "--BUFFER-REQUESTS"                     { yyextra->begin= yytext; return yyextra->previous_token= BUFFER_REQUESTS; }
  98 "--CONFIGURE-FILE="                     { yyextra->begin= yytext; return yyextra->previous_token= CONFIGURE_FILE; }
  99 "--CONNECT-TIMEOUT="                    { yyextra->begin= yytext; return yyextra->previous_token= CONNECT_TIMEOUT; }
 100 "--DISTRIBUTION="                       { yyextra->begin= yytext; return yyextra->previous_token= DISTRIBUTION; }
 101 "--HASH-WITH-NAMESPACE"         { yyextra->begin= yytext; return yyextra->previous_token= HASH_WITH_NAMESPACE; }
 102 "--HASH="                               { yyextra->begin= yytext; return yyextra->previous_token= HASH; }
 103 "--IO-BYTES-WATERMARK="         { yyextra->begin= yytext; return yyextra->previous_token= IO_BYTES_WATERMARK; }
 104 "--IO-KEY-PREFETCH="                    { yyextra->begin= yytext; return yyextra->previous_token= IO_KEY_PREFETCH; }
 105 "--IO-MSG-WATERMARK="           { yyextra->begin= yytext; return yyextra->previous_token= IO_MSG_WATERMARK; }
 106 "--NOREPLY"                         { yyextra->begin= yytext; return yyextra->previous_token= NOREPLY; }
 107 "--NUMBER-OF-REPLICAS="         { yyextra->begin= yytext; return yyextra->previous_token= NUMBER_OF_REPLICAS; }
 108 "--POLL-TIMEOUT="                       { yyextra->begin= yytext; return yyextra->previous_token= POLL_TIMEOUT; }
 109 "--RANDOMIZE-REPLICA-READ"              { yyextra->begin= yytext; return yyextra->previous_token= RANDOMIZE_REPLICA_READ; }
 110 "--RCV-TIMEOUT="                        { yyextra->begin= yytext; return yyextra->previous_token= RCV_TIMEOUT; }
 111 "--REMOVE-FAILED-SERVERS="                      { yyextra->begin= yytext; return yyextra->previous_token= REMOVE_FAILED_SERVERS; }
 112 "--RETRY-TIMEOUT="                      { yyextra->begin= yytext; return yyextra->previous_token= RETRY_TIMEOUT; }
 113 "--SND-TIMEOUT="                        { yyextra->begin= yytext; return yyextra->previous_token= SND_TIMEOUT; }
 114 "--SOCKET-RECV-SIZE="           { yyextra->begin= yytext; return yyextra->previous_token= SOCKET_RECV_SIZE; }
 115 "--SOCKET-SEND-SIZE="           { yyextra->begin= yytext; return yyextra->previous_token= SOCKET_SEND_SIZE; }
 116 "--SORT-HOSTS"                  { yyextra->begin= yytext; return yyextra->previous_token= SORT_HOSTS; }
 117 "--SUPPORT-CAS"                 { yyextra->begin= yytext; return yyextra->previous_token= SUPPORT_CAS; }
 118 "--TCP-KEEPALIVE"                       { yyextra->begin= yytext; return yyextra->previous_token= _TCP_KEEPALIVE; }
 119 "--TCP-KEEPIDLE"                        { yyextra->begin= yytext; return yyextra->previous_token= _TCP_KEEPIDLE; }
 120 "--TCP-NODELAY"                 { yyextra->begin= yytext; return yyextra->previous_token= _TCP_NODELAY; }
 121 "--USE-UDP"                             { yyextra->begin= yytext; return yyextra->previous_token= USE_UDP; }
 122 "--USER-DATA"                   { yyextra->begin= yytext; return yyextra->previous_token= USER_DATA; }
 123 "--VERIFY-KEY"                      { yyextra->begin= yytext; return yyextra->previous_token= VERIFY_KEY; }
 124
 125 "--POOL-MIN="                           { yyextra->begin= yytext; return yyextra->previous_token= POOL_MIN; }
 126 "--POOL-MAX="                           { yyextra->begin= yytext; return yyextra->previous_token= POOL_MAX; }
 127
 128 "--NAMESPACE="                          { yyextra->begin= yytext; return yyextra->previous_token= NAMESPACE; }
 129
 130 INCLUDE           { yyextra->begin= yytext; return yyextra->previous_token= INCLUDE; }
 131 RESET           { yyextra->begin= yytext; return yyextra->previous_token= RESET; }
 132 DEBUG           { yyextra->begin= yytext; return yyextra->previous_token= PARSER_DEBUG; }
 133 SERVERS           { yyextra->begin= yytext; return yyextra->previous_token= SERVERS; }
 134 END           { yyextra->begin= yytext; return yyextra->previous_token= END; }
 135 ERROR           { yyextra->begin= yytext; return yyextra->previous_token= ERROR; }
 136
 137 TRUE           { return yyextra->previous_token= TRUE; }
 138 FALSE           { return yyextra->previous_token= FALSE; }
 139
 140
 141 "--"[[:alnum:]]*   {
 142       yyextra->begin= yytext;
 143       return UNKNOWN_OPTION;
 144     }
 145
 146 CONSISTENT      { return CONSISTENT; }
 147 MODULA          { return MODULA; }
 148 RANDOM          { return RANDOM; }
 149
 150 MD5                     { return MD5; }
 151 CRC                     { return CRC; }
 152 FNV1_64                 { return FNV1_64; }
 153 FNV1A_64                        { return FNV1A_64; }
 154 FNV1_32                 { return FNV1_32; }
 155 FNV1A_32                        { return FNV1A_32; }
 156 HSIEH                   { return HSIEH; }
 157 MURMUR                  { return MURMUR; }
 158 JENKINS                 { return JENKINS; }
 159
 160 (([[:digit:]]{1,3}"."){3}([[:digit:]]{1,3})) {
 161       yylval->server.port= MEMCACHED_DEFAULT_PORT;
 162       yylval->server.weight= 1;
 163       yylval->server.c_str= yyextra->set_hostname(yytext, yyleng);
 164       if (yylval->server.c_str)
 165         yylval->server.size= yyleng;
 166       return IPADDRESS;
 167     }
 168
 169 [[:alnum:]]["."[:alnum:]_-]+[[:alnum:]] {
 170       if (yyextra->is_server())
 171       {
 172         yylval->server.port= MEMCACHED_DEFAULT_PORT;
 173         yylval->server.weight= 1;
 174         yylval->server.c_str= yyextra->set_hostname(yytext, yyleng);
 175         if (yylval->server.c_str)
 176           yylval->server.size= yyleng;
 177
 178         return HOSTNAME;
 179       }
 180
 181       yylval->string.c_str = yytext;
 182       yylval->string.size = yyleng;
 183
 184       return STRING;
 185     }
 186
 187 L?\"(\\.|[^\\"])*\" {
 188       yyget_text(yyscanner)[yyleng -1]= 0;
 189       yylval->string.c_str= yytext +1;
 190       yylval->string.size= yyleng -2;
 191       return QUOTED_STRING;
 192     }
 193
 194 .   {
 195       yyextra->begin= yytext;
 196       return UNKNOWN;
 197     }
 198
 199 %%
 200
 201 void Context::init_scanner()
 202 {
 203   yylex_init(&scanner);
 204   yyset_extra(this, scanner);
 205 }
 206
 207 void Context::destroy_scanner()
 208 {
 209   yylex_destroy(scanner);
 210 }
 211