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  26 <div class="titlepage"><div><div><h3 class="title">
  27 <a name="boost_regex.ref.error_type"></a><a class="link" href="error_type.html" title="error_type">error_type</a>
  28 </h3></div></div></div>
  29 <h5>
  30 <a name="boost_regex.ref.error_type.h0"></a>
  31         <span class="phrase"><a name="boost_regex.ref.error_type.synopsis"></a></span><a class="link" href="error_type.html#boost_regex.ref.error_type.synopsis">Synopsis</a>
  32       </h5>
  33 <p>
  34         Type error type represents the different types of errors that can be raised
  35         by the library when parsing a regular expression.
  36       </p>
  37 <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">regex_constants</span><span class="special">{</span>
  38
  39 <span class="keyword">typedef</span> <span class="identifier">implementation</span><span class="special">-</span><span class="identifier">specific</span><span class="special">-</span><span class="identifier">type</span> <span class="identifier">error_type</span><span class="special">;</span>
  40
  41 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_collate</span><span class="special">;</span>
  42 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_ctype</span><span class="special">;</span>
  43 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_escape</span><span class="special">;</span>
  44 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_backref</span><span class="special">;</span>
  45 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_brack</span><span class="special">;</span>
  46 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_paren</span><span class="special">;</span>
  47 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_brace</span><span class="special">;</span>
  48 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_badbrace</span><span class="special">;</span>
  49 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_range</span><span class="special">;</span>
  50 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_space</span><span class="special">;</span>
  51 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_badrepeat</span><span class="special">;</span>
  52 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_complexity</span><span class="special">;</span>
  53 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_stack</span><span class="special">;</span>
  54 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">error_type</span> <span class="identifier">error_bad_pattern</span><span class="special">;</span>
  55
  56 <span class="special">}</span> <span class="comment">// namespace regex_constants</span>
  57 <span class="special">}</span> <span class="comment">// namespace boost</span>
  58 </pre>
  59 <h5>
  60 <a name="boost_regex.ref.error_type.h1"></a>
  61         <span class="phrase"><a name="boost_regex.ref.error_type.description"></a></span><a class="link" href="error_type.html#boost_regex.ref.error_type.description">Description</a>
  62       </h5>
  63 <p>
  64         The type <code class="computeroutput"><span class="identifier">error_type</span></code> is an
  65         implementation-specific enumeration type that may take one of the following
  66         values:
  67       </p>
  68 <div class="informaltable"><table class="table">
  69 <colgroup>
  70 <col>
  71 <col>
  72 </colgroup>
  73 <thead><tr>
  74 <th>
  75                 <p>
  76                   Constant
  77                 </p>
  78               </th>
  79 <th>
  80                 <p>
  81                   Meaning
  82                 </p>
  83               </th>
  84 </tr></thead>
  85 <tbody>
  86 <tr>
  87 <td>
  88                 <p>
  89                   error_collate
  90                 </p>
  91               </td>
  92 <td>
  93                 <p>
  94                   An invalid collating element was specified in a [[.name.]] block.
  95                 </p>
  96               </td>
  97 </tr>
  98 <tr>
  99 <td>
 100                 <p>
 101                   error_ctype
 102                 </p>
 103               </td>
 104 <td>
 105                 <p>
 106                   An invalid character class name was specified in a [[:name:]] block.
 107                 </p>
 108               </td>
 109 </tr>
 110 <tr>
 111 <td>
 112                 <p>
 113                   error_escape
 114                 </p>
 115               </td>
 116 <td>
 117                 <p>
 118                   An invalid or trailing escape was encountered.
 119                 </p>
 120               </td>
 121 </tr>
 122 <tr>
 123 <td>
 124                 <p>
 125                   error_backref
 126                 </p>
 127               </td>
 128 <td>
 129                 <p>
 130                   A back-reference to a non-existant marked sub-expression was encountered.
 131                 </p>
 132               </td>
 133 </tr>
 134 <tr>
 135 <td>
 136                 <p>
 137                   error_brack
 138                 </p>
 139               </td>
 140 <td>
 141                 <p>
 142                   An invalid character set [...] was encountered.
 143                 </p>
 144               </td>
 145 </tr>
 146 <tr>
 147 <td>
 148                 <p>
 149                   error_paren
 150                 </p>
 151               </td>
 152 <td>
 153                 <p>
 154                   Mismatched '(' and ')'.
 155                 </p>
 156               </td>
 157 </tr>
 158 <tr>
 159 <td>
 160                 <p>
 161                   error_brace
 162                 </p>
 163               </td>
 164 <td>
 165                 <p>
 166                   Mismatched '{' and '}'.
 167                 </p>
 168               </td>
 169 </tr>
 170 <tr>
 171 <td>
 172                 <p>
 173                   error_badbrace
 174                 </p>
 175               </td>
 176 <td>
 177                 <p>
 178                   Invalid contents of a {...} block.
 179                 </p>
 180               </td>
 181 </tr>
 182 <tr>
 183 <td>
 184                 <p>
 185                   error_range
 186                 </p>
 187               </td>
 188 <td>
 189                 <p>
 190                   A character range was invalid, for example [d-a].
 191                 </p>
 192               </td>
 193 </tr>
 194 <tr>
 195 <td>
 196                 <p>
 197                   error_space
 198                 </p>
 199               </td>
 200 <td>
 201                 <p>
 202                   Out of memory.
 203                 </p>
 204               </td>
 205 </tr>
 206 <tr>
 207 <td>
 208                 <p>
 209                   error_badrepeat
 210                 </p>
 211               </td>
 212 <td>
 213                 <p>
 214                   An attempt to repeat something that can not be repeated - for example
 215                   a*+
 216                 </p>
 217               </td>
 218 </tr>
 219 <tr>
 220 <td>
 221                 <p>
 222                   error_complexity
 223                 </p>
 224               </td>
 225 <td>
 226                 <p>
 227                   The expression became too complex to handle.
 228                 </p>
 229               </td>
 230 </tr>
 231 <tr>
 232 <td>
 233                 <p>
 234                   error_stack
 235                 </p>
 236               </td>
 237 <td>
 238                 <p>
 239                   Out of program stack space.
 240                 </p>
 241               </td>
 242 </tr>
 243 <tr>
 244 <td>
 245                 <p>
 246                   error_bad_pattern
 247                 </p>
 248               </td>
 249 <td>
 250                 <p>
 251                   Other unspecified errors.
 252                 </p>
 253               </td>
 254 </tr>
 255 </tbody>
 256 </table></div>
 257 </div>
 258 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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