Code Roar Reference Manual: Searching with Regular Expressions

Searching with Regular Expressions

Code Roar supports searching using regular expressions when performing a search using the find dialog or the find first dialog. For example, to find the list of all modules in a verilog file the user can search for the following string:

m..ule

The above expression replaces the two letters od in the word module with a regular expression wild card .. that will match any two letter combination. Therefore, in addition to matching the word module it would also match the following strings:

midule

madule

musule

More examples of searching with regular expressions may be found in Regular Expresssion Search Examples topic.

Supported Syntax

The following regular expression syntax is supported.

Regular Expression Character	Description of Character	Example
.	Matches any character
(	This marks the start of a region for tagging a match.
)	This marks the end of a tagged region.
\n	Where n is 1 through 9 refers to the first through ninth tagged region when replacing. For example, if the search string was Fred$[1-9]$XXX and the replace string was Sam\1YYY, when applied to Fred2XXX this would generate Sam2YYY.
\<	This matches the start of a word.
\>	This matches the end of a word.
\x	This allows you to use a character x that would otherwise have a special meaning. For example, \[ would be interpreted as [ and not as the start of a character set.
[...]	This indicates a set of characters, for example, [abc] means any of the characters a, b or c. You can also use ranges, for example [a-z] for any lower case character.
[^...]	The complement of the characters in the set. For example, [^A-Za-z] means any character except an alphabetic character.
^	This matches the start of a line (unless used inside a set, see above).
$	This matches the end of a line.
*	This matches 0 or more times. For example, Sa*m matches Sm, Sam, Saam, Saaam and so on.
+	This matches 1 or more times. For example, Sa+m matches Sam, Saam, Saaam and so on.