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repl: fix broken input while using rb-readline

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Fixes #1823 (Broken upstream when rb-readline is enabled)
This commit is contained in:
Kyrylo Silin 2018-10-26 04:33:36 +08:00
parent 63b8571e42
commit 3aa7ebc7db
1 changed files with 5 additions and 1 deletions
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6
lib/pry/repl.rb
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@ -241,7 +241,11 @@ class Pry
# indicators in 99% of cases.
def calculate_overhang(current_prompt, original_val, indented_val)
overhang = original_val.length - indented_val.length
if readline_available? && Readline.vi_editing_mode?
if readline_available? &&
# rb-readline doesn't support this method:
# https://github.com/ConnorAtherton/rb-readline/issues/152
Readline.respond_to?(:vi_editing_mode?) &&
Readline.vi_editing_mode?
overhang += current_prompt.length - indented_val.length
end
[0, overhang].max