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  26 <div class="titlepage"><div><div><h4 class="title">
  27 <a name="boost_regex.ref.syntax_option_type.syntax_option_type_literal"></a><a class="link" href="syntax_option_type_literal.html" title="Options for Literal Strings">Options
  28         for Literal Strings</a>
  29 </h4></div></div></div>
  30 <p>
  31           The following must always be set to interpret the expression as a string
  32           literal:
  33         </p>
  34 <div class="informaltable"><table class="table">
  35 <colgroup>
  36 <col>
  37 <col>
  38 <col>
  39 </colgroup>
  40 <thead><tr>
  41 <th>
  42                   <p>
  43                     Element
  44                   </p>
  45                 </th>
  46 <th>
  47                   <p>
  48                     Standardized
  49                   </p>
  50                 </th>
  51 <th>
  52                   <p>
  53                     Effect when set
  54                   </p>
  55                 </th>
  56 </tr></thead>
  57 <tbody><tr>
  58 <td>
  59                   <p>
  60                     literal
  61                   </p>
  62                 </td>
  63 <td>
  64                   <p>
  65                     Yes
  66                   </p>
  67                 </td>
  68 <td>
  69                   <p>
  70                     Treat the string as a literal (no special characters).
  71                   </p>
  72                 </td>
  73 </tr></tbody>
  74 </table></div>
  75 <p>
  76           The following options may also be combined with the literal flag:
  77         </p>
  78 <div class="informaltable"><table class="table">
  79 <colgroup>
  80 <col>
  81 <col>
  82 <col>
  83 </colgroup>
  84 <thead><tr>
  85 <th>
  86                   <p>
  87                     Element
  88                   </p>
  89                 </th>
  90 <th>
  91                   <p>
  92                     Standardized
  93                   </p>
  94                 </th>
  95 <th>
  96                   <p>
  97                     Effect when set
  98                   </p>
  99                 </th>
 100 </tr></thead>
 101 <tbody>
 102 <tr>
 103 <td>
 104                   <p>
 105                     icase
 106                   </p>
 107                 </td>
 108 <td>
 109                   <p>
 110                     Yes
 111                   </p>
 112                 </td>
 113 <td>
 114                   <p>
 115                     Specifies that matching of regular expressions against a character
 116                     container sequence shall be performed without regard to case.
 117                   </p>
 118                 </td>
 119 </tr>
 120 <tr>
 121 <td>
 122                   <p>
 123                     optimize
 124                   </p>
 125                 </td>
 126 <td>
 127                   <p>
 128                     Yes
 129                   </p>
 130                 </td>
 131 <td>
 132                   <p>
 133                     Specifies that the regular expression engine should pay more
 134                     attention to the speed with which regular expressions are matched,
 135                     and less to the speed with which regular expression objects are
 136                     constructed. Otherwise it has no detectable effect on the program
 137                     output. This currently has no effect for Boost.Regex.
 138                   </p>
 139                 </td>
 140 </tr>
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