DEELX Basic Pattern Syntax: Character Sets

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Character Sets

Can match any one but only one character of a certain set of characters.

Remarks

Standard sets in DEELX:

Set	Description
.	The dot can match any single character except the new-line(\n)
\w	Can match any one of alphas, numbers, and the underscore
\W	Capital W, can match any one character out of "\w"
\s	Can match space, new-line, return etc, any space characters
\S	Capital S, can match any one character out of "\s"
\d	Can match any digital number, 0~9
\D	Capital D, can match any one character out of 0~9
[:alpha:]	POSIX, match any alpha, A~Z, a~z
[:^alpha:]	Negative POSIX, can match any one character out of "[:alpha:]"

If the match mode is SINGLELINE,  the dot can match any character including new-line. Refer to Match Modes for more details.

POSIX sets supported by DEELX:

POSIX set	Description
[:alnum:]	Any one alpha, number (A - Z, a - z, 0 - 9)
[:alpha:]	Any one alpha (A - Z, a - z)
[:ascii:]	Any ASCII character (\x00 - \x7F)
[:cntrl:]	Any control character (\x00 - \x1F, \x7F)
[:digit:]	Any one digital number (0 - 9)
[:print:]	Any one printable ASCII (\x20 - \x7E)
[:space:]	Any space character (\x09 - \x0D, \x20)
[:graph:]	Any printable ASCII, excluding space (\x21 - \x7E)
[:lower:]	Any one lowercase alpha (a - z)
[:punct:]	Any printable ASCII, excluding [:alnum:]
[:upper:]	Any one uppercase alpha (A - Z)
[:xdigit:]	Any hex number (0 - 9, A - F, a - f)
[:blank:]	Space or tab (\x20, \x09)

If [: is followed by ^ , it is the negative form.