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Can I use an OR in regex without capturing what's enclosed?
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Depending on the regular expression implementation you can use so called non-capturing groups with the syntax (?:…):
((?:a|b)c)
Here (?:a|b) is a group but you cannot reference its match. So you can only reference the match of ((?:a|b)c) that is either ac or bc.
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Maven command to list lifecycle phases along with bound goals?
...n wrong, but this command is the "reverse lookup" to the question (Listing all phases this goal is in)? link says "Displays a list of the attributes for a Maven Plugin and/or goals (aka Mojo - Maven plain Old Java Object)."
– user2039709
Nov 17 '16 at 13:45
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What is the proper way to check if a string is empty in Perl?
... situation where you haven't already guarded against undef, then the catch-all for "non-empty" that won't warn is if (defined $str and length $str).
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Java regex capturing groups indexes
...ithout capturing property, hence named non-capturing group.
A group is usually used when you need to repeat a sequence of patterns, e.g. (\.\w+)+, or to specify where alternation should take effect, e.g. ^(0*1|1*0)$ (^, then 0*1 or 1*0, then $) versus ^0*1|1*0$ (^0*1 or 1*0$).
A capturing group, a...
Android: Specify two different images for togglebutton using XML
...d come last. Arrange the items in the following manner to ensure they will all be utilized:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:state_pressed="true" /> //currently pressed turning the toggle on
<item...
BindingFlags.IgnoreCase not working for Type.GetProperty()?
...en the default look-up flags, if you specify new flags you need to provide all the info so that the property can be found. For example: BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance
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AngularJS ngClass conditional
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I see great examples above but they all start with curly brackets (json map). Another option is to return a result based on computation. The result can also be a list of css class names (not just map). Example:
ng-class="(status=='active') ? 'enabled' : 'disab...
Omitting one Setter/Getter in Lombok
...has about a dozen fields, I annotated it with @Data in order to generate all the setters and getter. However there is one special field for which I don't want to the accessors to be implemented.
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C# Thread safe fast(est) counter
...ent locks the bus to prevent another CPU from accessing the bus while the calling CPU does its operation. Now, take a look at the C# lock() statement's IL. Here you will see calls to Monitor in order to begin or end a section.
In other words, .Net lock() statement is doing a lot more than the .Ne...
How can I strip first and last double quotes?
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If you can't assume that all the strings you process have double quotes you can use something like this:
if string.startswith('"') and string.endswith('"'):
string = string[1:-1]
Edit:
I'm sure that you just used string as the variable name f...