a really useless fucking yaml cheat sheet

yaml.txt

 Collection indicators:
      '? ' : Key indicator.
      ': ' : Value indicator.
      '- ' : Nested series entry indicator.
      ', ' : Separate in-line branch entries.
      '[]' : Surround in-line series branch.
      '{}' : Surround in-line keyed branch.
  Scalar indicators:
      '''' : Surround in-line unescaped scalar ('' escaped ').
      '"'  : Surround in-line escaped scalar (see escape codes below).
      '|'  : Block scalar indicator.
      '>'  : Folded scalar indicator.
      '-'  : Strip chomp modifier ('|-' or '>-').
      '+'  : Keep chomp modifier ('|+' or '>+').
      1-9  : Explicit indentation modifier ('|1' or '>2').
             # Modifiers can be combined ('|2-', '>+1').
  Alias indicators:
      '&'  : Anchor property.
      '*'  : Alias indicator.
  Tag property: # Usually unspecified.
      none    : Unspecified tag (automatically resolved by application).
      '!'     : Non-specific tag (by default, "!!map"/"!!seq"/"!!str").
      '!foo'  : Primary (by convention, means a local "!foo" tag).
      '!!foo' : Secondary (by convention, means "tag:yaml.org,2002:foo").
      '!h!foo': Requires "%TAG !h! <prefix>" (and then means "<prefix>foo").
      '!<foo>': Verbatim tag (always means "foo").
  Document indicators:
      '%'  : Directive indicator.
      '---': Document header.
      '...': Document terminator.
  Misc indicators:
      ' #' : Throwaway comment indicator.
      '`@' : Both reserved for future use.
  Special keys:
      '='  : Default "value" mapping key.
      '<<' : Merge keys from another mapping.
  Core types: # Default automatic tags.
      '!!map' : { Hash table, dictionary, mapping }
      '!!seq' : { List, array, tuple, vector, sequence }
      '!!str' : Unicode string
  More types:
      '!!set' : { cherries, plums, apples }
      '!!omap': [ one: 1, two: 2 ]
  Language Independent Scalar types:
      { ~, null }              : Null (no value).
      [ 1234, 0x4D2, 02333 ]   : [ Decimal int, Hexadecimal int, Octal int ]
      [ 1_230.15, 12.3015e+02 ]: [ Fixed float, Exponential float ]
      [ .inf, -.Inf, .NAN ]    : [ Infinity (float), Negative, Not a number ]
      { Y, true, Yes, ON  }    : Boolean true
      { n, FALSE, No, off }    : Boolean false
      ? !!binary >
          R0lG...BADS=
      : >-
          Base 64 binary value.
  Escape codes:
   Numeric   : { "\x12": 8-bit, "\u1234": 16-bit, "\U00102030": 32-bit }
   Protective: { "\\": '\', "\"": '"', "\ ": ' ', "\<TAB>": TAB }
   C         : { "\0": NUL, "\a": BEL, "\b": BS, "\f": FF, "\n": LF,
                 "\r": CR, "\t": TAB, "\v": VTAB }
   Additional: { "\e": ESC, "\_": NBSP, "\N": NEL, "\L": LS, "\P": PS }