Class: Glancer::Utils::MarkdownHelper

Inherits:
Object
  • Object
show all
Defined in:
lib/glancer/utils/markdown_helper.rb

Class Method Summary collapse

Class Method Details

.extract_sql_from_markdown(markdown) ⇒ Object 



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# File 'lib/glancer/utils/markdown_helper.rb', line 50

def self.extract_sql_from_markdown(markdown)
  match = markdown.match(/```sql\n(.+?)\n```/m)
  match ? match[1].strip : ""
end

.highlight_mentions(text, schema_base: nil, valid_tables: nil) ⇒ Object

Wraps @word tokens with a highlight span. Applied before markdown so that the renderer preserves the inline HTML. Skips content inside backtick spans and fenced code blocks so code examples are not affected.



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# File 'lib/glancer/utils/markdown_helper.rb', line 25

def self.highlight_mentions(text, schema_base: nil, valid_tables: nil)
  valid_set = valid_tables&.to_set
  # Split on fenced code blocks and inline backtick spans to skip them.
  parts = text.split(/(```[\s\S]*?```|`[^`]*`)/)
  parts.map.with_index do |part, idx|
    if idx.odd?
      part
    else
      # Negative lookbehind prevents matching @ inside emails or identifiers.
      part.gsub(/(?<![a-zA-Z0-9._])@([a-zA-Z]\w*)/) do
        table = Regexp.last_match(1)
        next "@#{table}" if valid_set && !valid_set.include?(table)

        if schema_base
          href = "#{schema_base}?table=#{table}"
          attrs = %( href="#{href}" target="_blank" rel="noopener noreferrer" tabindex="0")
          %(<a class="glancer-mention" data-table="#{table}"#{attrs}>@#{table}</a>)
        else
          %(<a class="glancer-mention" data-table="#{table}" href="#" tabindex="0">@#{table}</a>)
        end
      end
    end
  end.join
end

.markdown_to_html(markdown_text, schema_base: nil, valid_tables: nil) ⇒ Object 



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# File 'lib/glancer/utils/markdown_helper.rb', line 7

def self.markdown_to_html(markdown_text, schema_base: nil, valid_tables: nil)
  content = Commonmarker.to_html(highlight_mentions(markdown_text, schema_base: schema_base, valid_tables: valid_tables),
                                 options: {
                                   parse: { smart: true },
                                   render: { unsafe: true, github_pre_lang: true }
                                 },
                                 plugins: { syntax_highlighter: { theme: "InspiredGitHub" } })

  content.gsub!(%r{<table.*?</table>}m) do |table_html|
    %(<div class="table-scroll-wrapper"><div class="table-scroll-inner">#{table_html}</div></div>)
  end

  content
end