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# frozen_string_literal: true
require 'cgi'
##
# Creates HTML-safe labels suitable for use in id attributes. Tidylinks are
# converted to their link part and cross-reference links have the suppression
# marks removed (\\SomeClass is converted to SomeClass).
class RDoc::Markup::ToLabel < RDoc::Markup::Formatter
attr_reader :res # :nodoc:
##
# Creates a new formatter that will output HTML-safe labels
def initialize markup = nil
super nil, markup
@markup.add_special RDoc::CrossReference::CROSSREF_REGEXP, :CROSSREF
@markup.add_special(/(((\{.*?\})|\b\S+?)\[\S+?\])/, :TIDYLINK)
add_tag :BOLD, '', ''
add_tag :TT, '', ''
add_tag :EM, '', ''
@res = []
end
##
# Converts +text+ to an HTML-safe label
def convert text
label = convert_flow @am.flow text
CGI.escape(label).gsub('%', '-').sub(/^-/, '')
end
##
# Converts the CROSSREF +special+ to plain text, removing the suppression
# marker, if any
def handle_special_CROSSREF special
text = special.text
text.sub(/^\\/, '')
end
##
# Converts the TIDYLINK +special+ to just the text part
def handle_special_TIDYLINK special
text = special.text
return text unless text =~ /\{(.*?)\}\[(.*?)\]/ or text =~ /(\S+)\[(.*?)\]/
$1
end
alias accept_blank_line ignore
alias accept_block_quote ignore
alias accept_heading ignore
alias accept_list_end ignore
alias accept_list_item_end ignore
alias accept_list_item_start ignore
alias accept_list_start ignore
alias accept_paragraph ignore
alias accept_raw ignore
alias accept_rule ignore
alias accept_verbatim ignore
alias end_accepting ignore
alias handle_special_HARD_BREAK ignore
alias start_accepting ignore
end
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