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Contents
# frozen_string_literal: true
module Haml
# Like Temple::Filters::Escapable, but with support for escaping by
# Haml::Herlpers.html_escape and Haml::Herlpers.escape_once.
class Escapable < Temple::Filter
# Special value of `flag` to ignore html_safe?
EscapeSafeBuffer = Struct.new(:value)
def initialize(*)
super
@escape = false
@escape_safe_buffer = false
end
def on_escape(flag, exp)
old_escape, old_escape_safe_buffer = @escape, @escape_safe_buffer
@escape_safe_buffer = flag.is_a?(EscapeSafeBuffer)
@escape = @escape_safe_buffer ? flag.value : flag
compile(exp)
ensure
@escape, @escape_safe_buffer = old_escape, old_escape_safe_buffer
end
# The same as Haml::AttributeBuilder.build_attributes
def on_static(value)
[:static,
if @escape == :once
escape_once(value)
elsif @escape
escape(value)
else
value
end
]
end
# The same as Haml::AttributeBuilder.build_attributes
def on_dynamic(value)
[:dynamic,
if @escape == :once
escape_once_code(value)
elsif @escape
escape_code(value)
else
"(#{value}).to_s"
end
]
end
private
def escape_once(value)
if @escape_safe_buffer
::Haml::Helpers.escape_once_without_haml_xss(value)
else
::Haml::Helpers.escape_once(value)
end
end
def escape(value)
if @escape_safe_buffer
::Haml::Helpers.html_escape_without_haml_xss(value)
else
::Haml::Helpers.html_escape(value)
end
end
def escape_once_code(value)
"::Haml::Helpers.escape_once#{('_without_haml_xss' if @escape_safe_buffer)}((#{value}))"
end
def escape_code(value)
"::Haml::Helpers.html_escape#{('_without_haml_xss' if @escape_safe_buffer)}((#{value}))"
end
end
end
Version data entries
29 entries across 29 versions & 2 rubygems