Add bin and edit workflow

bin/gems/unicode-display_width-2.6.0/lib/unicode/display_width.rb

@@ -0,0 +1,123 @@
+# frozen_string_literal: true
+
+require_relative "display_width/constants"
+require_relative "display_width/index"
+
+module Unicode
+  class DisplayWidth
+    INITIAL_DEPTH = 0x10000
+    ASCII_NON_ZERO_REGEX = /[\0\x05\a\b\n\v\f\r\x0E\x0F]/
+    FIRST_4096 = decompress_index(INDEX[0][0], 1)
+
+    def self.of(string, ambiguous = 1, overwrite = {}, options = {})
+      if overwrite.empty?
+        # Optimization for ASCII-only strings without certain control symbols
+        if string.ascii_only?
+          if string.match?(ASCII_NON_ZERO_REGEX)
+            res = string.gsub(ASCII_NON_ZERO_REGEX, "").size - string.count("\b")
+            res < 0 ? 0 : res
+          else
+            string.size
+          end
+        else
+          width_no_overwrite(string, ambiguous, options)
+        end
+      else
+        width_all_features(string, ambiguous, overwrite, options)
+      end
+    end
+
+    def self.width_no_overwrite(string, ambiguous, options = {})
+      # Sum of all chars widths
+      res = string.codepoints.sum{ |codepoint|
+        if codepoint > 15 && codepoint < 161 # very common
+          next 1
+        elsif codepoint < 0x1001
+          width = FIRST_4096[codepoint]
+        else
+          width = INDEX
+          depth = INITIAL_DEPTH
+          while (width = width[codepoint / depth]).instance_of? Array
+            codepoint %= depth
+            depth /= 16
+          end
+        end
+
+        width == :A ? ambiguous : (width || 1)
+      }
+
+      # Substract emoji error
+      res -= emoji_extra_width_of(string, ambiguous) if options[:emoji]
+
+      # Return result + prevent negative lengths
+      res < 0 ? 0 : res
+    end
+
+    # Same as .width_no_overwrite - but with applying overwrites for each char
+    def self.width_all_features(string, ambiguous, overwrite, options)
+      # Sum of all chars widths
+      res = string.codepoints.sum{ |codepoint|
+        next overwrite[codepoint] if overwrite[codepoint]
+
+        if codepoint > 15 && codepoint < 161 # very common
+          next 1
+        elsif codepoint < 0x1001
+          width = FIRST_4096[codepoint]
+        else
+          width = INDEX
+          depth = INITIAL_DEPTH
+          while (width = width[codepoint / depth]).instance_of? Array
+            codepoint %= depth
+            depth /= 16
+          end
+        end
+
+        width == :A ? ambiguous : (width || 1)
+      }
+
+      # Substract emoji error
+      res -= emoji_extra_width_of(string, ambiguous, overwrite) if options[:emoji]
+
+      # Return result + prevent negative lengths
+      res < 0 ? 0 : res
+    end
+
+
+    def self.emoji_extra_width_of(string, ambiguous = 1, overwrite = {}, _ = {})
+      require "unicode/emoji"
+
+      extra_width = 0
+      modifier_regex = /[#{ Unicode::Emoji::EMOJI_MODIFIERS.pack("U*") }]/
+      zwj_regex = /(?<=#{ [Unicode::Emoji::ZWJ].pack("U") })./
+
+      string.scan(Unicode::Emoji::REGEX){ |emoji|
+        extra_width += 2 * emoji.scan(modifier_regex).size
+
+        emoji.scan(zwj_regex){ |zwj_succ|
+          extra_width += self.of(zwj_succ, ambiguous, overwrite)
+        }
+      }
+
+      extra_width
+    end
+
+    def initialize(ambiguous: 1, overwrite: {}, emoji: false)
+      @ambiguous = ambiguous
+      @overwrite = overwrite
+      @emoji     = emoji
+    end
+
+    def get_config(**kwargs)
+      [
+        kwargs[:ambiguous] || @ambiguous,
+        kwargs[:overwrite] || @overwrite,
+        { emoji: kwargs[:emoji] || @emoji },
+      ]
+    end
+
+    def of(string, **kwargs)
+      self.class.of(string, *get_config(**kwargs))
+    end
+  end
+end
+

bin/gems/unicode-display_width-2.6.0/lib/unicode/display_width/constants.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+module Unicode
+  class DisplayWidth
+    VERSION = "2.6.0"
+    UNICODE_VERSION = "16.0.0"
+    DATA_DIRECTORY = File.expand_path(File.dirname(__FILE__) + "/../../../data/")
+    INDEX_FILENAME = DATA_DIRECTORY + "/display_width.marshal.gz"
+  end
+end

bin/gems/unicode-display_width-2.6.0/lib/unicode/display_width/index.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+require "zlib"
+require_relative "constants"
+
+module Unicode
+  class DisplayWidth
+    File.open(INDEX_FILENAME, "rb") do |file|
+      serialized_data = Zlib::GzipReader.new(file).read
+      serialized_data.force_encoding Encoding::BINARY
+      INDEX = Marshal.load(serialized_data)
+    end
+
+    def self.decompress_index(index, level)
+      index.flat_map{ |value|
+        if level > 0
+          if value.instance_of?(Array)
+            value[15] ||= nil
+            decompress_index(value, level - 1)
+          else
+            decompress_index([value] * 16, level - 1)
+          end
+        else
+          if value.instance_of?(Array)
+            value[15] ||= nil
+            value
+          else
+            [value] * 16
+          end
+        end
+      }
+    end
+  end
+end

bin/gems/unicode-display_width-2.6.0/lib/unicode/display_width/no_string_ext.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+warn "You are loading 'unicode-display_width/no_string_ext'\n" \
+     "Beginning with version 2.0, this is not necessary anymore\n"\
+     "You can just require 'unicode-display_width' now and no\n"\
+     "string extension will be loaded"
+
+require_relative "../display_width"

bin/gems/unicode-display_width-2.6.0/lib/unicode/display_width/string_ext.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+require_relative "../display_width" unless defined? Unicode::DisplayWidth
+
+class String
+  def display_width(ambiguous = 1, overwrite = {}, options = {})
+    Unicode::DisplayWidth.of(self, ambiguous, overwrite, options)
+  end
+end