30 lines
790 B
Ruby
30 lines
790 B
Ruby
module Capybara
|
|
class Selector
|
|
class CSS
|
|
def self.escape(str)
|
|
out = String.new("")
|
|
value = str.dup
|
|
out << value.slice!(0...1) if value =~ /^[-_]/
|
|
out << if value[0] =~ NMSTART
|
|
value.slice!(0...1)
|
|
else
|
|
escape_char(value.slice!(0...1))
|
|
end
|
|
out << value.gsub(/[^a-zA-Z0-9_-]/) {|c| escape_char c}
|
|
out
|
|
end
|
|
|
|
def self.escape_char(c)
|
|
return "\\%06x" % c.ord() unless c =~ %r{[ -/:-~]}
|
|
"\\#{c}"
|
|
end
|
|
|
|
S = '\u{80}-\u{D7FF}\u{E000}-\u{FFFD}\u{10000}-\u{10FFFF}'
|
|
H = /[0-9a-fA-F]/
|
|
UNICODE = /\\#{H}{1,6}[ \t\r\n\f]?/
|
|
NONASCII = /[#{S}]/
|
|
ESCAPE = /#{UNICODE}|\\[ -~#{S}]/
|
|
NMSTART = /[_a-zA-Z]|#{NONASCII}|#{ESCAPE}/
|
|
end
|
|
end
|
|
end |