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"Code" (when used to refer to what we create in Ruby or any other programming language) is an abstract non-count noun, so it cannot be pluralized. ("Codes" would be used when referring to specific countable things like PIN codes, which is a different use of the word "code".)
This is somewhat confusing because English allows converting count nouns into non-count nouns, and converting non-count nouns into count nouns, and because many words have both forms.
For an example of converting a non-count noun to a count noun, "water" is normally a non-count noun:
> The world is covered with water.
but people who work in restaurants often use the word as a count noun, as a shorthand for "cup of water":
> I need 7 waters on the big table by the window.
For an example of the opposite conversion, "worm" is normally a count noun:
> There are lots of worms in the puddle.
but someone might use it as a non-count noun when talking about non-distinct remains of worms:
> You have worm all over the bottom of your shoe!
So although a given noun can be flexible enough to be used in either way—even when it is unconventional—there is a definite change of meaning when using a word as a count noun or a non-count noun.
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Although the example code comments indicate that it returns `false`,
a non-matching result for `=~` is actually `nil`.
```ruby
Foo.foo.blank? #=> false
"foo".blank? #=> false
```
https://github.com/ruby/ruby/blob/v4.0.0-preview3/doc/language/box.md?plain=1#L115-L122
This PR replaces `=~` with `match?` so that it returns the expected `false`.
Since this makes the result a boolean, it also aligns with the expected behavior of
a predicate method name like `blank?`.
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Based on the example, it appears that `foo.rb` and `main.rb` are expected to be in the same directory.
Since Ruby 1.9, the current directory is not included in `$LOAD_PATH` by default.
As a result, running `box.require('foo')` as shown in the sample code raises a `LoadError`:
```console
main.rb:2:in `Ruby::Box#require': cannot load such file -- foo (LoadError)
from main.rb:2:in `<main>'
```
To avoid this, it seems simplest to show either `box.require('./foo')` or `box.require_relative('foo')`.
In this PR, `box.require('foo')` is replaced with `box.require_relative('foo')` to make the intention of
using a relative path explicit.
This should reduce the chance that users trying Ruby Box will run into an unexpected error.
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`$~` and its accessors are related to regular expressions, but are not
themselves.
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This reverts commit 31ff07ed1eb05d01f7da3c017d542137a3db1e94.
* Don't add a test which only runs on production release
* https://github.com/ruby/actions/actions/runs/20486784889/job/58870959976
* Don't add a new line to `ruby --help`
* https://github.com/ruby/ruby/pull/14142#issuecomment-3689829564
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In ruby, since 3.1 at least, the words "Pattern Matching" should refer
the syntax.
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* Escape unexpected links
* Remove unnecessary path name from in-file reference
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[DOC] More doc improvements to ractor.md
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* Align "Contains" column in "Streams" table
* Align some columns vertically
* Remove a duplicate `$-a` description
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[DOC] Improvements to doc/language/ractor.md
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* [DOC] Enhancements for globals.md
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* Document Range#to_set
* Update Thread#raise and Fiber#raise signatures and docs
* Add reference to String#strip to character_selectors.rdoc
* Update *nil docs when calling methods
* Enhance Array#find and #rfind docs
* Add a notice to Kernel#raise about cause:
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https://bugs.ruby-lang.org/issues/21785#note-10
> It is too late to introduce it in Ruby 4.0, let's aim for 4.1.
This reverts commits:
* d0b72429a93e54f1f956b4aedfc25c57dc7001aa
Add support for signed and unsigned LEB128 to pack/unpack.
* 68a900e30b4ca1537d7975c3a619fd94fca7b084
add news for pack / unpack directives
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This commit adds a new pack format command `R` and `r` for unsigned and
signed LEB128 encoding. The "r" mnemonic is because this is a
"vaRiable" length encoding scheme.
LEB128 is used in various formats including DWARF, WebAssembly, MQTT,
and Protobuf.
[Feature #21785]
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This variation is used when `-a` option is given.
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These variables are set by command line options, but it is deprecated
to assign them any value other than nil in ruby code.
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Re-organize page docs
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