Class: Goodcheck::Analyzer

Inherits:
Object
  • Object
show all
Defined in:
lib/goodcheck/analyzer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rule:, buffer:) ⇒ Analyzer

Returns a new instance of Analyzer.



6
7
8
9
 
# File 'lib/goodcheck/analyzer.rb', line 6

def initialize(rule:, buffer:)
  @rule = rule
  @buffer = buffer
end

Instance Attribute Details

#buffer ⇒ Object (readonly)

Returns the value of attribute buffer.



4
5
6
 
# File 'lib/goodcheck/analyzer.rb', line 4

def buffer
  @buffer
end

#rule ⇒ Object (readonly)

Returns the value of attribute rule.



3
4
5
 
# File 'lib/goodcheck/analyzer.rb', line 3

def rule
  @rule
end

Instance Method Details

#scan(&block) ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/goodcheck/analyzer.rb', line 11

def scan(&block)
  if block_given?
    issues = []

    rule.patterns.each do |pattern|
      scanner = StringScanner.new(buffer.content)

      break_head = pattern.regexp.source.start_with?("\\b")
      after_break = true

      until scanner.eos?
        case
        when scanner.scan(pattern.regexp)
          next if break_head && !after_break

          text = scanner.matched
          range = (scanner.pos - text.bytesize) .. scanner.pos
          unless issues.any? {|issue| issue.range == range }
            issues << Issue.new(buffer: buffer, range: range, rule: rule, text: text)
          end
        when scanner.scan(/.\b/m)
          after_break = true
        else
          scanner.scan(/./m)
          after_break = false
        end
      end
    end

    issues.each(&block)
  else
    enum_for(:scan, &block)
  end
end