.

Matches any character

[abc]

Matches a, b or c

[a-z]

Matches any character a to z inclusive

[^ac]

Matches any character except a and c

(x)

Matches x (x might be any regexp) If used with split, this

also puts the string matching x into the result array.

x*

Matches zero or more occurances of 'x' (x may be any regexp)

x+

Matches one or more occurances of 'x' (x may be any regexp)

x|y

Matches x or y. (x or y may be any regexp)

xy

Matches xy (x and y may be any regexp)

^

Matches beginning of string (but no characters)

$

Matches end of string (but no characters)

\<

matches the beginning of a word (but no characters)

\>

matches the end of a word (but no characters)

Note that \ can be used to quote these characters in which case they match themselves, nothing else. Also note that when quoting these something in uLPC you need two \ because uLPC also uses this character for quoting.

For more information about regexps, refer to your unix manuals such as sed or ed.

Descriptions of all functions in /precompiled/regexp follows: