Re: Making an LDAP filter more readable

This seems to get closed to the required output:

Updated: Corrected fencepost-ish error.

Update2: Added a second pass to condense it a bit.

#! perl -slw
use strict;

( my $input = do{ local $/; <DATA> } ) =~ tr[\n][]d;

my $tab = 0;
$input =~ s[([()])]{
    $tab-- if $1 eq ')';
    my $modified = "\n" . ( "    " x $tab ) . $1;
    $tab++ if $1 eq '(';
    $modified;
}ge;
$input =~ s[\n\s+\)][)]g;

print $input;

__DATA__
(&(&(&(& (mailnickname=*) (| (&(objectCategory=person)(objectClass=use
+r)(!(homeM
DB=*))(!(msExchHomeServerName=*)))(&(objectCategory=person)(objectClas
+s=user)(|
(homeMDB=*)(msExchHomeServerName=*)))(&(objectCategory=person)(objectC
+lass=cont
act))(objectCategory=group)(objectCategory=publicFolder)(objectCategor
+y=msExchD
ynamicDistributionList) )))(objectCategory=contact)(proxyAddresses=smt
+p:*exampl
e.com)))
[download]

Yields:

P:\test>junk1

(&
    (&
        (&
            (&
                (mailnickname=*)
                (|
                    (&
                        (objectCategory=person)
                        (objectClass=user)
                        (!
                            (homeMDB=*))
                        (!
                            (msExchHomeServerName=*)))
                    (&
                        (objectCategory=person)
                        (objectClass=user)
                        (|
                            (homeMDB=*)
                            (msExchHomeServerName=*)))
                    (&
                        (objectCategory=person)
                        (objectClass=contact))
                    (objectCategory=group)
                    (objectCategory=publicFolder)
                    (objectCategory=msExchDynamicDistributionList) )))
        (objectCategory=contact)
        (proxyAddresses=smtp:*example.com))
)
[download]

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

Comment on Re: Making an LDAP filter more readable Select or Download Code

Replies are listed 'Best First'.
Re^2: Making an LDAP filter more readable by bronto (Priest) on Jan 11, 2006 at 15:48 UTC
Very interesting! I have just some difficulties in reading that s/// operator. Could you please explain? Thanks for posting! Ciao! `--bronto` In theory, there is no difference between theory and practice. In practice, there is.	[reply]
Re^3: Making an LDAP filter more readable by BrowserUk (Patriarch) on Jan 11, 2006 at 16:01 UTC
Sure. my $tab = 0; ## Number of 'tabs' to insert starts at zero $input =~ s[ ( ## Capture to $1 [()] ## All open or close parens ) ]{ ## /e-xecute turns the second half into a code block. ## Decrement teh tab count if this is a close paren $tab-- if $1 eq ')'; ## Insert a newline + $tab tabs before the paren (open or close) my $modified = "\n" . ( " " x $tab ) . $1; ## Increment the tab count if this is an open paren $tab++ if $1 eq '('; ## And 'return' the modified text for substitution $modified; }xge; ## Late addition: ## Second pass strips out any 'lone' close parens ## to compact the results a little. $input =~ s[\n\s+\)][)]g; [download] Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal? "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply] [d/l]


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