Improve English comments and messages

lib/error_highlight/base.rb

@@ -1,13 +1,13 @@
 require_relative "version"
 
 module ErrorHighlight
-  # Identify the code fragment at that a given exception occurred.
+  # Identify the code fragment where a given exception occurred.
   #
   # Options:
   #
   # point_type: :name | :args
-  #   :name (default) points the method/variable name that the exception occurred.
-  #   :args points the arguments of the method call that the exception occurred.
+  #   :name (default) points to the method/variable name where the exception occurred.
+  #   :args points to the arguments of the method call where the exception occurred.
   #
   # backtrace_location: Thread::Backtrace::Location
   #   It locates the code fragment of the given backtrace_location.
@@ -113,7 +113,7 @@ def initialize(node, point_type: :name, name: nil)
         snippet = @node.script_lines[lineno - 1 .. last_lineno - 1].join("")
         snippet += "\n" unless snippet.end_with?("\n")
 
-        # It require some work to support Unicode (or multibyte) characters.
+        # It requires some work to support Unicode (or multibyte) characters.
         # Tentatively, we stop highlighting if the code snippet has non-ascii characters.
         # See https://github.com/ruby/error_highlight/issues/4
         raise NonAscii unless snippet.ascii_only?
@@ -504,7 +504,6 @@ def spot_fcall_for_name
     def spot_fcall_for_args
       _mid, nd_args = @node.children
       if nd_args && nd_args.first_lineno == nd_args.last_lineno
-        # binary operator
         fetch_line(nd_args.first_lineno)
         @beg_column = nd_args.first_column
         @end_column = nd_args.last_column

lib/error_highlight/core_ext.rb

@@ -24,7 +24,7 @@ module CoreExt
               _, _, snippet, highlight = ErrorHighlight.formatter.message_for(spot).lines
               out += "\n    | #{ snippet }      #{ highlight }"
             else
-              out += "\n    (cannot create a snippet of the method definition; use Ruby 3.5 or later)"
+              out += "\n    (cannot highlight method definition; try Ruby 3.5 or later)"
             end
           end
           ret << "\n" + out if out

lib/error_highlight/formatter.rb

@@ -56,11 +56,11 @@ def self.max_snippet_width=(width)
     end
 
     def self.terminal_width
-      # lazy load io/console, so it's not loaded when 'max_snippet_width' is set
+      # lazy load io/console to avoid loading it when 'max_snippet_width' is manually set
       require "io/console"
       $stderr.winsize[1] if $stderr.tty?
     rescue LoadError, NoMethodError, SystemCallError
-      # do not truncate when window size is not available
+      # skip truncation when terminal window size is unavailable
     end
   end
 

test/test_error_highlight.rb

@@ -1468,7 +1468,7 @@ def test_wrong_number_of_arguments_for_method
       MethodDefLocationSupported ?
    "|   def wrong_number_of_arguments_test(x, y)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^" :
-   "(cannot create a snippet of the method definition; use Ruby 3.5 or later)"
+   "(cannot highlight method definition; try Ruby 3.5 or later)"
    }
     END
 
@@ -1494,7 +1494,7 @@ def test_missing_keyword
       MethodDefLocationSupported ?
    "|   def keyword_test(kw1:, kw2:, kw3:)
             ^^^^^^^^^^^^" :
-   "(cannot create a snippet of the method definition; use Ruby 3.5 or later)"
+   "(cannot highlight method definition; try Ruby 3.5 or later)"
    }
     END
 
@@ -1515,7 +1515,7 @@ def test_unknown_keyword
       MethodDefLocationSupported ?
    "|   def keyword_test(kw1:, kw2:, kw3:)
             ^^^^^^^^^^^^" :
-   "(cannot create a snippet of the method definition; use Ruby 3.5 or later)"
+   "(cannot highlight method definition; try Ruby 3.5 or later)"
    }
     END
 
@@ -1545,7 +1545,7 @@ def test_wrong_number_of_arguments_for_method2
       MethodDefLocationSupported ?
    "|   def wrong_number_of_arguments_test2(
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^" :
-   "(cannot create a snippet of the method definition; use Ruby 3.5 or later)"
+   "(cannot highlight method definition; try Ruby 3.5 or later)"
    }
     END
 
@@ -1567,7 +1567,7 @@ def test_wrong_number_of_arguments_for_lambda_literal
       MethodDefLocationSupported ?
    "|     v = -> {}
               ^^" :
-   "(cannot create a snippet of the method definition; use Ruby 3.5 or later)"
+   "(cannot highlight method definition; try Ruby 3.5 or later)"
    }
     END
 
@@ -1589,7 +1589,7 @@ def test_wrong_number_of_arguments_for_lambda_method
       MethodDefLocationSupported ?
    "|     v = lambda { }
                      ^" :
-   "(cannot create a snippet of the method definition; use Ruby 3.5 or later)"
+   "(cannot highlight method definition; try Ruby 3.5 or later)"
    }
     END
 
@@ -1615,7 +1615,7 @@ def test_wrong_number_of_arguments_for_define_method
       MethodDefLocationSupported ?
    "|   define_method :define_method_test do |x, y|
                                           ^^" :
-   "(cannot create a snippet of the method definition; use Ruby 3.5 or later)"
+   "(cannot highlight method definition; try Ruby 3.5 or later)"
    }
     END