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module TomlRB
# Used in primitive.citrus
module BasicString
SPECIAL_CHARS = {
"\\0" => "\0",
"\\t" => "\t",
"\\b" => "\b",
"\\f" => "\f",
"\\n" => "\n",
"\\r" => "\r",
'\\"' => '"',
"\\\\" => "\\"
}.freeze
def value
aux = TomlRB::BasicString.transform_escaped_chars first.value
aux[1...-1]
end
# Replace the unicode escaped characters with the corresponding character
# e.g. \u03B4 => ?
def self.decode_unicode(str)
[str[2..-1].to_i(16)].pack("U")
end
def self.transform_escaped_chars(str)
str.gsub(/\\(u[\da-fA-F]{4}|U[\da-fA-F]{8}|.)/) do |m|
if m.size == 2
SPECIAL_CHARS[m] || parse_error(m)
else
decode_unicode(m).force_encoding("UTF-8")
end
end
end
def self.parse_error(m)
fail ParseError.new "Escape sequence #{m} is reserved"
end
end
module LiteralString
def value
first.value[1...-1]
end
end
module MultilineString
def value
return "" if captures[:text].empty?
aux = captures[:text].first.value
# Remove spaces on multilined Singleline strings
aux.gsub!(/\\\r?\n[\n\t\r ]*/, "")
TomlRB::BasicString.transform_escaped_chars aux
end
end
module MultilineLiteral
def value
return "" if captures[:text].empty?
aux = captures[:text].first.value
aux.gsub(/\\\r?\n[\n\t\r ]*/, "")
end
end
end
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