Class: InfluxDB::LineProtocol::Unescapes

Inherits:
Object
  • Object
show all
Defined in:
lib/influxdb/lineprotocol/parser.rb

Instance Method Summary collapse

Instance Method Details

#unescape(field, str) ⇒ Object 



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# File 'lib/influxdb/lineprotocol/parser.rb', line 686

def unescape(field, str)
  case field
  when :measurement
    # 1. escaped hash, null, or tab at the beginning
    # 2. escaped comma, space, or newline anywhere
    # 3. escaped backslash at the end
    str
        .sub(/^\\([#\0\t])/, '\\1')
        .gsub(/\\([, \n])/, '\\1')
        .sub(/\\\\$/, '\\')
  when :tag_key, :tag_value
    # 1. escaped comma, equals, newline, or space anywhere
    # 2. escaped backslash at the end
    str
        .gsub(/\\([,=\n ])/, '\\1')
        .sub(/\\\\$/, '\\')
  when :field_key
    # 1. escaped null or tab at beginning
    # 2. escaped comma, equals, newline, or space anywhere
    # 3. escaped backslash at the end
    str
        .sub(/^\\([\0\t])/, '\\1')
        .gsub(/\\([,=\n ])/, '\\1')
        .sub(/\\\\$/, '\\')
  when :string
    # escaped quote anywhere
    str.gsub(/\\"/, '"')
  end
end