Module: Tablerize::Plugin::Kramdown

Defined in:
lib/kramdown-tablerize/version.rb,
lib/kramdown-tablerize/tablerize.rb

Constant Summary collapse

VERSION = 
"1.0.2"
ERROR_CONTEXT_LINES = 
5

Class Method Summary collapse

Class Method Details

.convert_yaml_tablerize_to_html(yaml_tablerize) ⇒ Object 



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# File 'lib/kramdown-tablerize/tablerize.rb', line 23

def self.convert_yaml_tablerize_to_html(yaml_tablerize)
  Tablerize.load(yaml_tablerize).to_html + "\n"
rescue Psych::SyntaxError => e
  e.message.prepend [
    "Tablerize YAML error for the following table:",
    printable_error_context(yaml_tablerize, e.line),
    "backtrace:",
    ''
  ].join("\n")
  raise e
end

.printable_error_context(text, target_line) ⇒ Object

Prints out the 5 lines before and after the line where an error occurred. This is useful for debugging embedded YAML, as the line number where the error occurred in YAML won’t be the same as where it occurred in the Markdown source.



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# File 'lib/kramdown-tablerize/tablerize.rb', line 12

def self.printable_error_context(text, target_line)
  raw_lines = text.lines.to_a
  start_line = [target_line - ERROR_CONTEXT_LINES, 1].max
  end_line   = [target_line + ERROR_CONTEXT_LINES, raw_lines.length].min
  fmt_lines = (start_line..end_line).map do |line|
    marker = line == target_line ? '*' : ' '
    "#{marker} #{line} #{raw_lines[line - 1].chomp}"
  end
  fmt_lines.join("\n")
end