Module: Coradoc::IncludeSelectors::Lines

Defined in:
lib/coradoc/include_selectors/lines.rb

Overview

Line-range selection. Parses asciidoctor-style specs:

N            single line
A..B         inclusive range
A..B;C;D..E  multiple, semicolon-separated

Out-of-bounds clamps gracefully (SPEC 3.4). One-based indexing (asciidoctor convention).

Constant Summary collapse

SPEC_PART = 
%r{
  \A
  (?<start>\d+)
  (?:\.\.(?<finish>\d+))?
  \z
}x.freeze

Class Method Summary collapse

Class Method Details

.call(text, options:) ⇒ String

Parameters:

Returns:

  • (String) 


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# File 'lib/coradoc/include_selectors/lines.rb', line 24

def self.call(text, options:)
  return text unless options.lines?

  ranges = parse_spec(options.lines_spec, max: text.lines.length)
  return '' if ranges.empty?

  indices = ranges.flat_map { |start, finish| (start..finish).to_a }.uniq.sort
  text.lines.values_at(*indices.map { |i| i - 1 }).join
end