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[DOC] percent literals can be nested.

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Tanaka Akira 2024-06-03 12:24:55 +09:00
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doc/syntax/literals.rdoc
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@ -453,6 +453,8 @@ may use these paired delimiters:
* <tt><</tt> and <tt>></tt>. * <tt><</tt> and <tt>></tt>.
* Any other character, as both beginning and ending delimiters. * Any other character, as both beginning and ending delimiters.
The first four pairs (brackets, parenthesis, braces, and angle brackets) can be nested.
These are demonstrated in the next section. These are demonstrated in the next section.
=== <tt>%q</tt>: Non-Interpolable String Literals === <tt>%q</tt>: Non-Interpolable String Literals
@ -467,6 +469,10 @@ The created string is the same as if you created it with single quotes:
%|foo bar baz| # => "foo bar baz" # Using two |. %|foo bar baz| # => "foo bar baz" # Using two |.
%:foo bar baz: # => "foo bar baz" # Using two :. %:foo bar baz: # => "foo bar baz" # Using two :.
%q(1 + 1 is #{1 + 1}) # => "1 + 1 is \#{1 + 1}" # No interpolation. %q(1 + 1 is #{1 + 1}) # => "1 + 1 is \#{1 + 1}" # No interpolation.
%q[foo[bar]baz] # => "foo[bar]baz" # brackets can be nested.
%q(foo(bar)baz) # => "foo(bar)baz" # parenthesis can be nested.
%q{foo{bar}baz} # => "foo[bar]baz" # braces can be nested.
%q<foo<bar>baz> # => "foo[bar]baz" # angle brackets can be nested.
=== <tt>% and %Q</tt>: Interpolable String Literals === <tt>% and %Q</tt>: Interpolable String Literals
@ -488,6 +494,10 @@ or <tt>%W</tt> (interpolable):
%w(#{1 + 1}) # => ["\#{1", "+", "1}"] %w(#{1 + 1}) # => ["\#{1", "+", "1}"]
%W(#{1 + 1}) # => ["2"] %W(#{1 + 1}) # => ["2"]
# The nested delimiters evaluated to a flat array of strings
# (not nested array).
%w[foo[bar baz]qux] # => ["foo[bar", "baz]qux"]
=== <tt>%i and %I</tt>: Symbol-Array Literals === <tt>%i and %I</tt>: Symbol-Array Literals
You can write an array of symbols with <tt>%i</tt> (non-interpolable) You can write an array of symbols with <tt>%i</tt> (non-interpolable)