RegEx

[SudoBen]

Hello again,
i have run into another Problem:
I'm triing to filter DP Names that are hold in a dyn_string via dynPatternMatch.

The Names are always build up llike device__property_propertyOfProperty_....
I am trying to filter all properties of the first level that do NOT have child properties.

I supposed the Regex to be something like
"*Device_??_/[[:alpha:]/]+"
"*Device_??_[:alpha:]+"
"*Device_??[/a]+"
"*Device_??[a-zA-Z]+"

"*Device_??[/a]*"

But none of this works

So I have serious problems to figure out the right RegExp.
Folowing the help i looked up the regex syntax for unix commands (http://www.mkssoftware.com/docs/man5/re ... gexp.5.asp e.g.) .

Is there any more specific documentation how regular expressions are implemented in WOA?
(Or a RegEx that suits my Problem )

Thanks in advance

Best regards

BK

[mpoint]

I don't think dynPatternMatch() supports Regex. It's more like fnmatch() or "globbing".

EDIT:
It's probably easy to miss, but the online help says:

The asterisk "*" replaces any number of characters, the question mark "?" replaces any character, characters in square brackets one of the characters specified in brackets.

That's basically globbing.

[SudoBen]

Your'e right it behaves like gobbing,
but the help states (dynPatternMatch):

Under Linux, the same rules for pattern apply as those that apply in Linux command lines for addressing files: These rules can be retrieved with "man 5 regexp" on Linux computers.

What I need to find is a pattern that matches e.g. 3 digits and 4 chars.

Is that possible to archive with WOA? Or are * and ? the only supported wild cards (no character classes and complements available)?

[SudoBen]

Ok, i found a (not very elegant) way:
[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ][abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ][1234567890][1234567890][1234567890][1234567890][1234567890]

:woohoo: :woohoo: :woohoo:

But maybe someone comes up with a better solution :unsure:

[mpoint]

I'm pretty sure you can shorten it by using ranges, like "[a-zA-Z]" and "[0-9]".

[SudoBen]

Nope. Unfortunately not. :dry:

Code: Select all

patternMatch("[a-z][a-z]","aa") //No Match

Like quantifiers

Code: Select all

patternMatch("[a]{2}","aa") //No Match

It looks like only very basic expressions are recognized :unsure:

That would be hell of a nice enhancement in one of the upcoming Versions :laugh:

[mpoint]

Here's an alternative: Since Ctrl is extensible, you can help yourself out regarding regex support.

I put together this little experimental Ctrl Extension last evening: https://github.com/mooware/CtrlRegex. It provides replacements for patternMatch() and dynPatternMatch() based on the QRegExp class from Qt. And the bonus is, it even supports real globbing if you specify the pattern type "wildcard".

[SudoBen]

Cool , nice one

Looking forward to give it a closer look.