Allow arrays of CHAR nodes to be converted to QWords under certain conditions.

Author: kddnewton

CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) a
 - The ability to "check" formatting by formatting the output of the first format.
 - Comments can now be attached to the `case` keyword.
 - Remove escaped forward slashes from regular expression literals when converting to `%r`.
+- Allow arrays of `CHAR` nodes to be converted to `QWords` under certain conditions.
 
 ### Changed
 

lib/syntax_tree.rb

@@ -1355,7 +1355,11 @@ def format(q)
           q.indent do
             q.breakable("")
             q.seplist(contents.parts, -> { q.breakable }) do |part|
-              q.format(part.parts.first)
+              if part.is_a?(StringLiteral)
+                q.format(part.parts.first)
+              else
+                q.text(part.value[1..-1])
+              end
             end
           end
           q.breakable("")
@@ -1450,10 +1454,17 @@ def to_json(*opts)
     def qwords?
       contents && contents.comments.empty? && contents.parts.length > 1 &&
         contents.parts.all? do |part|
-          part.is_a?(StringLiteral) && part.comments.empty? &&
-            part.parts.length == 1 &&
-            part.parts.first.is_a?(TStringContent) &&
-            !part.parts.first.value.match?(/[\s\[\]\\]/)
+          case part
+          when StringLiteral
+            part.comments.empty? &&
+              part.parts.length == 1 &&
+              part.parts.first.is_a?(TStringContent) &&
+              !part.parts.first.value.match?(/[\s\[\]\\]/)
+          when CHAR
+            !part.value.match?(/[\[\]\\]/)
+          else
+            false
+          end
         end
     end