*regexpref*

                        Overview Regular-Expressions~
                        ============================


 +------------+------------+-----------------------------------------------+
 |    GREP    |    VIM     |              DESCRIPTION                      |
 +------------+------------+-----------------------------------------------+
 Single-Character~
 +------------+------------+-----------------------------------------------+
 |            |            |                                               |
 |  .         |  .         | matches any character                         |
 |  [ ]       |  [ ]       | matches any characters listet                 |
 |  [^ ]      |  [^ ]      | matches any characters except those listet    |
 |  \char     |  \char     | escapes "char" if it is a metacharacter       |
 |            |            |                                               |
 +------------+------------+-----------------------------------------------+
 Quantifiers~
 +------------+------------+-----------------------------------------------+
 |            |            |                                               |
 |   ?        | \?         | matches any character zero or one times       |
 |   *        | *          | matches the preceding item zero or more times |
 |   +        | \+         | matches the preceding item one or more times  |
 |  {num}     | \{num}     | matches the preceding item exactly num times  |
 |  {min,}    | \{min,}    | matches the preceding item min times          |
 |  {min,max} | \{min,max} | matches the preceding item min times, but not |
 |            |            | more than max times                           |
 |            |            |                                               |
 +------------+------------+-----------------------------------------------+
 Anchors~
 +------------+------------+-----------------------------------------------+
 |            |            |                                               |
 |    ^       |    ^       | matches start of line                         |
 |    $       |    $       | matches end of line                           |
 |    \<      |    \<      | matches beginning of a word                   |
 |    \>      |    \>      | matches end of a word                         |
 |            |            |                                               |
 +------------+------------+-----------------------------------------------+
 Others~
 +------------+------------+-----------------------------------------------+
 |            |            |                                               |
 |     |      |   \|       | alternation (logical OR)                      |
 |    ( )     |   \( \)    | - sets range for alternation                  |
 |            |            | - groups for qualifiers                       |
 |            |            | - defines text for backreferences             |
 |            |            |                                               |
 |  \1 \2...  | \1 \2...   | matches text in first, second ...             |
 |            |            | pair of parenthesis ( )                       |
 |            |            |                                               |
 +------------+------------+-----------------------------------------------+

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