glob

Create a list of hash paths that match a given pattern. You can also generate a hash with only the matching paths.

gem install glob

Or add the following line to your project's Gemfile:

gem "glob"

There are two types of paths: include and exclude.

• The include path adds that node to the new hash.
• The exclude path is the one started by !, and will prevent that path from being added.

Rules may also have groups. Let's say you want to target en.* and pt.*; you case set {en,pt}.* rather than having two separate rules.

The latest rules have more precedence; that means that if you have the rule *.messages.*, then add a following rule as !*.messages.bye, all *.messages.* but *.messages.bye will be included.

glob = Glob.new(
  site: {
    settings: {
      name: "Site name",
      url: "https://example.com"
    }
  },
  user: {
    settings: {
      name: "User name"
    }
  }
)

glob << "*.settings.*"

glob.paths
#=> ["site.settings.name", "site.settings.url", "user.settings.name"]

glob.to_h
#=> {
#=>   site: {
#=>     settings: {
#=>       name: "Site name"
#=>     }
#=>   },
#=>   user: {
#=>     settings: {
#=>       name: "User name"
#=>     }
#=>   }
#=> }

Notice that the return result will have symbolized keys.

If the key contain dots, then the result will use \\. as the escape sequence. Similarly, you need to escape keys with dots when filtering results.

glob = Glob.new(
  formats: {
    ".txt" => "Text",
    ".json" => "JSON",
    ".rb" => "Ruby"
  }
)

glob << "*"

glob.paths
#=> ["formats.\\.json", "formats.\\.rb", "formats.\\.txt"]

glob.to_h
#=> {:formats=>{:".json"=>"JSON", :".rb"=>"Ruby", :".txt"=>"Text"}}

# Remove all existing matchers
glob.matchers.clear

glob << "formats.\\.rb"

glob.paths
#=> ["formats.\\.rb"]

glob.to_h
#=> {:formats=>{:".rb"=>"Ruby"}}

You can set new keys by using .set(path, value):

glob = Glob.new
glob << "*"
glob.set "a.b.c", "hello"

glob.to_h
#=> {:a=>{:b=>{:c=>"hello"}}}

glob.paths
#=> ["a.b.c"]

# The non-hash value will be replaced in case the new path overlaps it
glob.set "a.b.c.d.e", "hello"

glob.to_h
#=> {:a=>{:b=>{:c=>{:d=>{:e=>"hello"}}}}}

glob.paths
#=> ["a.b.c.d.e"]

• Nando Vieira

• https://github.com/fnando/glob/contributors

For more details about how to contribute, please read https://github.com/fnando/glob/blob/main/CONTRIBUTING.md.

The gem is available as open source under the terms of the MIT License. A copy of the license can be found at https://github.com/fnando/glob/blob/main/LICENSE.md.

Everyone interacting in the glob project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.