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search in elfeed

Mathew Zaleski <matz@cs.toronto.edu>
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<20230509141613.1B173806FF@apps1.cs.toronto.edu>
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Hi there.
I've just taken elfeed out for a spin. Thanks for this!
I'm looking at the RSS feed for BC highways.
https://www.drivebc.ca/api/events/region/kootenays?format=rss

Suppose I want to filter articles by those that match only "Highway 1"

if I hit s, and then enter 
Highway 1

I also see highway 91, etc.

So I try:
Highway[:blank:]1

this doesn't match anything. I google a while, give up, email you..
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<20230510231311.dkoewllubu35qdnq@nullprogram.com>
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<20230509141613.1B173806FF@apps1.cs.toronto.edu> (view parent)
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In regexp syntax, "[:…:]" by itself is a plain old bracket expression. If 
you want to reference a named character class, you must put that inside a 
bracket expression: "Highway[[:blank:]]1" That works when I try it.

Tokenizing the search query and treating tokens as regexps is admittedly 
awkward. I wish I had come up with something that worked more intuitively.
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