Module: MdxTex::ToMarkdown::Header

Defined in:
lib/mdx_tex/to_markdown/header.rb

Overview

Converts a Textile heading to a Markdown heading. The Textile tag’s level determines the number of leading #s. A space must follow the period for the line to be recognised as a heading. Lines that do not match are returned unchanged.

| Input (Textile) | Output (Markdown) | |——————–|——————–| | h1. Title | # Title | | h3. Note | ### Note | | h6. Tiny | ###### Tiny | | h3.NoSpace | h3.NoSpace | | h7. TooDeep | h7. TooDeep |

Constant Summary collapse

PATTERN =

Matches a Textile heading line: hN. content

\A          anchor to start of line (no leading whitespace allowed)
h           literal 'h'
([1-6])     capture the heading level digit, restricted to 1-6
            (Textile/HTML only have h1..h6)
\.          literal period
\s+         one or more whitespace chars
            (required: `h3.NoSpace` is not a heading)
(.+)        capture the heading content (at least one char)
\z          anchor to end of line

/\Ah([1-6])\.\s+(.+)\z/.freeze

Class Method Summary collapse

Class Method Details

.execute(line) ⇒ Object 



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# File 'lib/mdx_tex/to_markdown/header.rb', line 30

def self.execute(line)
  line.sub(PATTERN) { "#{'#' * ::Regexp.last_match(1).to_i} #{::Regexp.last_match(2)}" }
end