Sha256: 962ef73797478678c1e052dbdf597cb33224f333a57f5583fa5657dbf70e2132
Contents?: true
Size: 1.51 KB
Versions: 7
Compression:
Stored size: 1.51 KB
Contents
# encoding: utf-8
require 'rouge/wrappers'
module Rouge::Printer
class UnknownFormError < StandardError; end
def self.print(form, out)
case form
when Numeric
# Handles Integer, Float, Rational, and Complex instances.
out << form.to_s
when Array
out << "[#{print_collection(form)}]"
when Hash
out << "{#{print_collection(form)}}"
when Set
out << "\#{#{print_collection(form)}}"
when Regexp
out << "#\"#{form.source}\""
when Symbol
# Symbols containing white space are printed with the results of #inspect,
# otherwise they are printed with the results #to_s. This maintains an
# experience consistent with Clojure whenever possible while providing
# clarity in cases where Symbols contain white space, although this is
# typically uncommon.
if /\s/.match(form)
out << form.inspect
else
out << ":#{form}"
end
when Rouge::Builtin, Rouge::Symbol, Rouge::Var, Rouge::Seq::Empty, Rouge::Seq::Cons
out << form.to_s
when Class, Module
if form.name
out << "ruby/#{form.name.split('::').join('.')}"
else
out << form.inspect
end
else
out << form.inspect
end
end
# Prints a collection of elements using `print`.
def self.print_collection(collection)
if collection.is_a? Hash
collection.to_a.map {|pair| print_collection(pair) }.join(', ')
else
collection.map {|el| print(el, '') }.join(' ')
end
end
end
# vim: set sw=2 et cc=80:
Version data entries
7 entries across 7 versions & 1 rubygems