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| <title> |
| Supported Regular Expressions |
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| <h1 class="Head"> |
| Supported Regular Expressions |
| </h1> |
| <p> |
| When searching for text you can use the regular expressions as defined by |
| the <a href= |
| "https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/regex/Pattern.html">Pattern |
| class</a>.<br /> |
| Additionally, \R can be used to match any form of line delimiter (Unix, |
| Windows, Classic Mac OS). Note that \R does not work in character groups ([]). |
| </p> |
| |
| <p> |
| The replace string allows the following constructs: |
| </p> |
| <table border="1" cellpadding="5" summary= |
| "supported constructs in the replace field"> |
| <tbody> |
| <tr> |
| <td> |
| $i |
| </td> |
| <td> |
| |
| inserts <a href= |
| "https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/regex/Pattern.html#cg"> |
| capturing group</a> i. |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \i |
| </td> |
| |
| <td> |
| inserts <a href= |
| "https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/regex/Pattern.html#cg"> |
| capturing group</a> i (same as $i). |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \<i>x</i> |
| |
| </td> |
| <td> |
| quotes character <i>x</i> (unless \<i>x</i> has a special meaning) |
| </td> |
| </tr> |
| <tr> |
| |
| <td> |
| \R |
| </td> |
| <td> |
| inserts the default line delimiter of the document |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \x<i>hh</i> |
| |
| </td> |
| <td> |
| inserts the hexadecimal character <i>hh</i> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \u<i>hhhh</i> |
| |
| </td> |
| <td> |
| inserts the Unicode character <i>hhhh</i> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \n |
| </td> |
| |
| <td> |
| inserts a newline character (usually, you should use \R instead) |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \r |
| </td> |
| <td> |
| inserts a carriage-return character (usually, you should use \R |
| instead) |
| </td> |
| |
| </tr> |
| <tr> |
| <td> |
| \t |
| </td> |
| <td> |
| inserts a tab character |
| </td> |
| </tr> |
| <tr> |
| |
| <td> |
| \f |
| </td> |
| <td> |
| inserts a form-feed character |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \a |
| </td> |
| |
| <td> |
| inserts an alert (beep) character |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \e |
| </td> |
| <td> |
| inserts an escape character |
| </td> |
| |
| </tr> |
| <tr> |
| <td> |
| \c<i>X</i> |
| </td> |
| <td> |
| inserts the control character for <i>X</i> |
| |
| </td> |
| </tr> |
| <tr> |
| <td> |
| \C |
| </td> |
| <td> |
| retains the casing of the match (all lower case, all upper case, |
| capitalized) for the rest of the replace string |
| </td> |
| </tr> |
| |
| </tbody> |
| </table> |
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