----- Original Message -----
I've found in the help box of regular expressions the opportunity of
searching for digits by means of [:digit:] expression.
But it doesn't seem to work.
<snip>
After seeing Joe's post:
Search for:
[:digit:]? will find any _single_ digit, example: 1
[:digit:+? will find and combination of digits ex: 10,100, 1000 etc
--------------------------
Why +? , why not simply + ? Here is how I see this.
A specification like [:xxx:] is used when searching for a _string_ of
objects of a certain type.
The part that replaces xxx specifies the _type_ of object one is looking for
(e.g., replacing xxx by digit specifies a decimal digit). By itself, a
specification like[:xxx:] is incomplete; one must also state the _length of
string_ (and that can be done with ? , + , or {k}). Thus
search for [:digit:]? finds the next decimal digit (string of digits, of
length 1)
search for [:digit:]+ finds the next string of decimal digits (of any
length)
search for [:digit:]{2} finds the next string of 2 decimal digits
etc
Likewise for [:space:]?, [:space:]+, [:space:]{2} and other such searches.
Vous êtes d'accord?
C'est simple, n'est-ce pas?
Ben
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