Class: Test::Unit::Diff::UTF8Line

### Home Classes Methods

### In Files

- lib/test/unit/diff.rb

### Parent

Object

### Methods

- ::new
- ::wide_character?
- #[]
- #compute_width
- #each
- #size
- #to_s

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No matching classes.

# Test::Unit::Diff::UTF8Line

### Constants

AMBIGUOUS
WIDE_CHARACTERS

  from unicode.org/reports/tr11/

### Public Class Methods

new(line) click to toggle source

    # File lib/test/unit/diff.rb, line 374
    def initialize(line)
      @line = line
      @characters = @line.unpack("U*")
    end

wide_character?(character) click to toggle source

    # File lib/test/unit/diff.rb, line 349
    def wide_character?(character)
      binary_search_ranges(character, WIDE_CHARACTERS) or
        binary_search_ranges(character, AMBIGUOUS)
    end

### Public Instance Methods

[](*args) click to toggle source

    # File lib/test/unit/diff.rb, line 379
    def [](*args)
      result = @characters[*args]
      if result.respond_to?(:pack)
        result.pack("U*")
      else
        result
      end
    end

compute_width(start, _end) click to toggle source

    # File lib/test/unit/diff.rb, line 400
    def compute_width(start, _end)
      width = 0
      start.upto(_end - 1) do |i|
        if self.class.wide_character?(@characters[i])
          width += 2
        else
          width += 1
        end
      end
      width
    end

each(&block) click to toggle source

    # File lib/test/unit/diff.rb, line 388
    def each(&block)
      @characters.each(&block)
    end

size() click to toggle source

    # File lib/test/unit/diff.rb, line 392
    def size
      @characters.size
    end

to_s() click to toggle source

    # File lib/test/unit/diff.rb, line 396
    def to_s
      @line
    end

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