NAME
YAML::Manual::RefCard - Handy reference card of the YAML syntax
INTRODUCTION
Below is the verbatim reference card from http://www.yaml.org/refcard.html.
REFERENCE CARD
%YAML 1.1 # Reference card
---
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 }
...
AUTHOR
Ingy döt Net <ingy@cpan.org>
COPYRIGHT
Copyright (c) 2008. Ingy döt Net.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See http://www.perl.com/perl/misc/Artistic.html