scsh-0.5/scsh/rx/cclass

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1999-07-05 23:45:37 -04:00
scsh name Posix ctype Alternate
-----------------------------------------
lower-case lower
upper-case upper
alphabetic alpha
numeric digit num
alphanumeric alnum alphanum
punctuation punct
graphic graph
blank (Gnu extension)
whitespace space white ("space" is potentially confusing.)
printing print
control cntrl
hex-digit xdigit hex
ascii ascii (Gnu extension)
SRE ::= ... <char-class> ...
<char-class> ::= <char>
| any | nonl | <class-name>
| (in <char-class-arg> ...)
| (not-in <char-class-arg> ...)
| (and <char-class-arg> ...)
| (diff <char-class-arg> ...)
| (- <char-or-string> ...)
| ,<cset-exp>
<char-class-arg> ::= <char-class> | <string>
(diff <arg1> <arg2> ...) = (and <arg1> (not-in <arg2> ...))
~!@#$%^&*-_+=|:<>?/ in
(: ...) sequence
(and ...)
(or ...)
(not ...)
(diff ...)
(* ...)
(+ ...)
(- ...)
(in ...) ; union
(not-in ...) ; complement-of-union
(and ...) ; intersection
(diff ...) ; diff
(+ ...) ; union
(~ ...) ; complement-of-union
(& ...) ; intersection
(- ...) ; diff
(in ...) ; union
(~ ...) ; complement-of-union
(& ...) ; intersection
(- ...) ; diff