Class: RedQuilt::Slug::Counter

Inherits:

Object

Object
RedQuilt::Slug::Counter

show all

Defined in:: lib/red_quilt/slug.rb

Overview

Deduplicates slugs within a single document: the first occurrence of a base keeps it, later collisions get ‘-1`, `-2`, … suffixes (matching GitHub’s anchor numbering).

Instance Method Summary collapse

#generate(text) ⇒ Object
#initialize ⇒ Counter constructor

A new instance of Counter.

Constructor Details

#initialize ⇒ `Counter`

Returns a new instance of Counter.



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# File 'lib/red_quilt/slug.rb', line 26

def initialize
  @seen = Hash.new(0)
end

Instance Method Details

#generate(text) ⇒ `Object`

# File 'lib/red_quilt/slug.rb', line 30

def generate(text)
  base = Slug.slugify(text)
  count = @seen[base]
  @seen[base] += 1
  count.zero? ? base : "#{base}-#{count}"
end