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