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| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="boost_regex.syntax.collating_names.digraphs"></a><a class="link" href="digraphs.html" title="Digraphs">Digraphs</a> |
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| <p> |
| The following are treated as valid digraphs when used as a collating name: |
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| <p> |
| "ae", "Ae", "AE", "ch", "Ch", |
| "CH", "ll", "Ll", "LL", "ss", |
| "Ss", "SS", "nj", "Nj", "NJ", |
| "dz", "Dz", "DZ", "lj", "Lj", |
| "LJ". |
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| So for example the expression: |
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| <pre class="programlisting">[[.ae.]-c] </pre> |
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| will match any character that collates between the digraph "ae" |
| and the character "c". |
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