# frozen_string_literal: false
##
# Outputs RDoc markup with vibrant ANSI color!
class RDoc::Markup::ToAnsi < RDoc::Markup::ToRdoc
##
# Creates a new ToAnsi visitor that is ready to output vibrant ANSI color!
def initialize markup = nil
super
@headings.clear
@headings[1] = ["\e[1;32m", "\e[m"] # bold
@headings[2] = ["\e[4;32m", "\e[m"] # underline
@headings[3] = ["\e[32m", "\e[m"] # just green
end
##
# Maps attributes to ANSI sequences
def init_tags
add_tag :BOLD, "\e[1m", "\e[m"
add_tag :TT, "\e[7m", "\e[m"
add_tag :EM, "\e[4m", "\e[m"
end
##
# Overrides indent width to ensure output lines up correctly.
def accept_list_item_end list_item
width = case @list_type.last
when :BULLET then
2
when :NOTE, :LABEL then
if @prefix then
@res << @prefix.strip
@prefix = nil
end
@res << "\n" unless res.length == 1
2
else
bullet = @list_index.last.to_s
@list_index[-1] = @list_index.last.succ
bullet.length + 2
end
@indent -= width
end
##
# Adds coloring to note and label list items
def accept_list_item_start list_item
bullet = case @list_type.last
when :BULLET then
'*'
when :NOTE, :LABEL then
labels = Array(list_item.label).map do |label|
attributes(label).strip
end.join "\n"
labels << ":\n" unless labels.empty?
labels
else
@list_index.last.to_s + '.'
end
case @list_type.last
when :NOTE, :LABEL then
@indent += 2
@prefix = bullet + (' ' * @indent)
else
@prefix = (' ' * @indent) + bullet.ljust(bullet.length + 1)
width = bullet.gsub(/\e\[[\d;]*m/, '').length + 1
@indent += width
end
end
##
# Starts accepting with a reset screen
def start_accepting
super
@res = ["\e[0m"]
end
end
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