[ruby/reline] Support bracketed paste mode

https://github.com/ruby/reline/commit/d1a6869322

2 files changed, 44 insertions, 2 deletions

diff --git a/lib/reline/ansi.rb b/lib/reline/ansi.rb
index f11dbb80f4..0b1a7e1745 100644
--- a/lib/reline/ansi.rb
+++ b/lib/reline/ansi.rb
@@ -1,4 +1,5 @@
 require 'io/console'
+require 'timeout'
 
 class Reline::ANSI
   def self.encoding
@@ -67,7 +68,7 @@ class Reline::ANSI
   end
 
   @@buf = []
-  def self.getc
+  def self.inner_getc
     unless @@buf.empty?
       return @@buf.shift
     end
@@ -80,8 +81,48 @@ class Reline::ANSI
     nil
   end
 
+  @@in_bracketed_paste_mode = false
+  START_BRACKETED_PASTE = String.new("\e[200~,", encoding: Encoding::ASCII_8BIT)
+  END_BRACKETED_PASTE = String.new("\e[200~.", encoding: Encoding::ASCII_8BIT)
+  def self.getc_with_bracketed_paste
+    buffer = String.new(encoding: Encoding::ASCII_8BIT)
+    buffer << inner_getc
+    while START_BRACKETED_PASTE.start_with?(buffer) or END_BRACKETED_PASTE.start_with?(buffer) do
+      if START_BRACKETED_PASTE == buffer
+        @@in_bracketed_paste_mode = true
+        return inner_getc
+      elsif END_BRACKETED_PASTE == buffer
+        @@in_bracketed_paste_mode = false
+        ungetc(-1)
+        return inner_getc
+      end
+      begin
+        succ_c = nil
+        Timeout.timeout(Reline.core.config.keyseq_timeout * 100) {
+          succ_c = inner_getc
+        }
+      rescue Timeout::Error
+        break
+      else
+        buffer << succ_c
+      end
+    end
+    buffer.bytes.reverse_each do |ch|
+      ungetc ch
+    end
+    inner_getc
+  end
+
+  def self.getc
+    if Reline.core.config.enable_bracketed_paste
+      getc_with_bracketed_paste
+    else
+      inner_getc
+    end
+  end
+
   def self.in_pasting?
-    not Reline::IOGate.empty_buffer?
+    @@in_bracketed_paste_mode or (not Reline::IOGate.empty_buffer?)
   end
 
   def self.empty_buffer?
diff --git a/lib/reline/config.rb b/lib/reline/config.rb
index 370d100414..c66810d30e 100644
--- a/lib/reline/config.rb
+++ b/lib/reline/config.rb
@@ -37,6 +37,7 @@ class Reline::Config
     vi-cmd-mode-icon
     vi-ins-mode-icon
     emacs-mode-string
+    enable-bracketed-paste
   }
   VARIABLE_NAME_SYMBOLS = VARIABLE_NAMES.map { |v| :"#{v.tr(?-, ?_)}" }
   VARIABLE_NAME_SYMBOLS.each do |v|