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[ruby/irb] Allow non-identifier aliases like Pry's @ and $

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(https://github.com/ruby/irb/pull/426)

* Allow non-identifier aliases

* Move the configuration to IRB.conf

* Avoid abusing method lookup for symbol aliases

* Add more alias tests

* A small optimization

* Assume non-nil Context

* Load IRB.conf earlier

e23db5132e
This commit is contained in:
Takashi Kokubun 2022-11-03 15:09:51 -07:00 • committed by git
parent d24ac6d281
commit a13836e70d
5 changed files with 87 additions and 0 deletions
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6
lib/irb/ruby-lex.rb
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@ -65,6 +65,12 @@ class RubyLex
false
end
else
# Accept any single-line input starting with a non-identifier alias (ex: @, $)
command = code.split(/\s/, 2).first
if context.symbol_alias(command)
next true
end
code.gsub!(/\s*\z/, '').concat("\n")
ltype, indent, continue, code_block_open = check_state(code, context: context)
if ltype or indent > 0 or continue or code_block_open