Lou Hernsen wrote:
: and if I want to include certain german umlutted vowels like
: ö and ä i would add them like this?
: $string =~ tr/-_a-zA-Z0-9öä//cd;
: ????
What happened when you tested it?
: then what does this do? (from parsing SDTIN)
:
: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
Well, the left hand side of the s operator is a regular
expression. This expression is looking for a percent sign (%)
followed by an hex number, followed by another hex number. If a
match is found, then the hex numbers are placed in $1.
The right hand side of the s operator is a replacement string.
It is normally interpolated (or treated as a double quoted
string), except when the e modifier is included. In this case the
e modifier executes the replacement or right hand side of the s
operator.
The result of the execution of the right hand side will
replace the percent sign followed by a hex number followed by
another hex number in $name. The g modifier will do this
repeatedly.
This is all explained in more detail in the file 'perlop'
under the Quote and Quote-like Operators section. You can read
about the pack() function in 'perlfunc'.
: $name =~ tr/\0//d; ### replaces zero values to empty????
In this case \0 is equivalent to ASCII 0 or chr(0). The d
modifier deletes matched, but unreplaced characters in $name.
HTH,
Charles K. Clarkson
--
Mobile Homes Specialist
Free Market Advocate
Web Programmer
254 968-8328
Don't tread on my bandwidth. Trim your posts.
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
<http://learn.perl.org/> <http://learn.perl.org/first-response>
