==================================+========+==============================================================================================================================================================================================================+
| Expression | Syntax | Description |
+==================================+========+==============================================================================================================================================================================================================+
| Any Character | . | Matches any single character except a line break. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Zero or more | * | Matches zero or more occurrences of the preceding expression, making all possible matches. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| One or more | + | Matches at least one occurrence of the preceding expression. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Beginning of line | ^ | Anchors the match string to the beginning of a line |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| End of line | $ | Anchors the match string to the end of a line. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Beginning of word | <</td> | Matches only when a word begins at this point in the text. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| End of word | > | Matches only when a word ends at this point in the text. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Line break | \n | Matches a platform-independent line break. In a Replace expression, inserts a line break. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Any one character in the set | [ ] | Matches any one of the characters within the [ ]. To specify a range of characters, list the starting and ending character separated by a dash (-), as in [a-z]. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Any one character not in the set | [^...] | Matches any character not in the set of characters following the ^. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Or | | | Matches either the expression before or the one after the OR symbol (|). Mostly used within a group. For example, (sponge|mud) bath matches "sponge bath" and "mud bath." |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Escape | \ | Matches the character that follows the backslash (\) as a literal. This allows you to find the characters used in regular expression notation, such as { and ^. For example, ^ Searches for the ^ character. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Tagged expression | {} | Matches text tagged with the enclosed expression. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| C/C++ Identifier | :i | Matches the expression ([a-zA-Z_$][a-zA-Z0-9_$]*). |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Quoted string | :q | Matches the expression (("[^"]*")|('[^']*')). |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Space or Tab | :b | Matches either space or tab characters. |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Integer | :z | Matches the expression ([0-9]+). |
+----------------------------------+--------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+