macOS Textmate Regex 101 - clean blank lines

[Caezar]

I am trying to clean in Textmate some articles I downloaded from Factiva, before I send them to my Sony Reader. I created a command in the Bundle Editor to remove blank lines:

sed /^$/d

It works, but now I want to add a new twist and remove blank lines, as well as lines that contain a single space. I tried the following but it does not work:

sed /^$/d
sed /^\s$/d

Any idea?

 

[angelwatt]

i don't think sed understands the backslash s. Try using an actual space or use [[:space:]].

Here's another one to try, though try on a test file first,

sed 'n;d'

(from http://www.unixguide.net/unix/sedoneliner.shtml)

 

[Caezar]

Unfortunately, neither worked.

Nothing happened as I launched the first command.

The second command performed some action, but the result was not as expected...

 

[rowsdower]

Did you try this?

sed /^[:space:]$/d

 

[HiRez]

i don't think sed understands the backslash s. Try using an actual space or use [[:space:]].

Yep, this does work:

sed /^[[:space:]]$/d

The key is you do need to use double brackets. This isn't really clear from the TextMate manual. This will not work:

sed /^[:space:]$/d