Module: Odin::Export

Defined in:
lib/odin/export.rb

Class Method Summary collapse

Class Method Details

.to_csv(doc) ⇒ Object

Convert OdinDocument to CSV string



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# File 'lib/odin/export.rb', line 37

def self.to_csv(doc)
  # Find array pattern: path[index].field
  array_pattern = /\A(.+?)\[(\d+)\]\.(.+)\z/
  rows = {}
  columns = []

  doc.each_assignment do |path, value|
    m = array_pattern.match(path)
    next unless m

    idx = m[2].to_i
    field = m[3]
    rows[idx] ||= {}
    rows[idx][field] = value
    columns << field unless columns.include?(field)
  end

  return "" if rows.empty? || columns.empty?

  lines = []
  lines << columns.map { |c| csv_escape(c) }.join(",")

  rows.keys.sort.each do |idx|
    row = rows[idx]
    cells = columns.map do |col|
      val = row[col]
      val ? csv_escape(odin_value_to_string(val)) : ""
    end
    lines << cells.join(",")
  end

  lines.join("\n") + "\n"
end

.to_fixed_width(doc, columns:, line_width: nil) ⇒ Object

Convert OdinDocument to fixed-width string



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# File 'lib/odin/export.rb', line 72

def self.to_fixed_width(doc, columns:, line_width: nil)
  total_width = line_width || columns.map { |c| (c[:pos] || 0) + (c[:len] || 0) }.max || 80

  line = " " * total_width
  columns.each do |col|
    pos = col[:pos] || 0
    len = col[:len] || 0
    pad_char = col[:pad] || " "
    align = col[:align] || :left
    field_path = col[:path] || col[:name]

    val = doc.get(field_path)
    raw = val ? odin_value_to_string(val) : ""
    raw = raw[0...len] if raw.length > len

    padded = if align == :right
               raw.rjust(len, pad_char)
             else
               raw.ljust(len, pad_char)
             end

    padded.chars.each_with_index do |ch, i|
      line[pos + i] = ch if pos + i < total_width
    end
  end

  line.rstrip + "\n"
end

.to_json(doc, pretty: true) ⇒ Object

Convert OdinDocument to JSON string



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# File 'lib/odin/export.rb', line 9

def self.to_json(doc, pretty: true)
  obj = doc_to_json_obj(doc)
  if pretty
    JSON.pretty_generate(obj)
  else
    JSON.generate(obj)
  end
end

.to_xml(doc, root: "root", preserve_types: false, preserve_modifiers: false) ⇒ Object

Convert OdinDocument to XML string



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# File 'lib/odin/export.rb', line 19

def self.to_xml(doc, root: "root", preserve_types: false, preserve_modifiers: false)
  # When preserving modifiers, always preserve types too
  preserve_types = true if preserve_modifiers

  xml = +%{<?xml version="1.0" encoding="UTF-8"?>\n}

  ns = ""
  if preserve_types || preserve_modifiers
    ns = ' xmlns:odin="https://odin.foundation/ns"'
  end

  xml << "<#{root}#{ns}>\n"
  emit_xml_assignments(doc, xml, 1, preserve_types, preserve_modifiers)
  xml << "</#{root}>\n"
  xml
end