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authorC. Bess <cbess@company.com>2015-11-09 17:55:53 -0600
committerC. Bess <cbess@company.com>2015-11-09 17:55:53 -0600
commitdf0992d72c2a28f140e6ff9681c505f36e19249a (patch)
tree508aa3abe4c25b957dca442560d9c95c9b1fc97a /yaml.html.markdown
parentafc5ea14654e0e9cd11c7ef1b672639d12418bad (diff)
parentc460e1fafa0e9b4edc6a5cb35b970bb5cc030a81 (diff)
Merge remote-tracking branch 'adambard/master'
Conflicts: swift.html.markdown
Diffstat (limited to 'yaml.html.markdown')
-rw-r--r--yaml.html.markdown31
1 files changed, 28 insertions, 3 deletions
diff --git a/yaml.html.markdown b/yaml.html.markdown
index 6e3e2c94..62f08fb9 100644
--- a/yaml.html.markdown
+++ b/yaml.html.markdown
@@ -3,6 +3,7 @@ language: yaml
filename: learnyaml.yaml
contributors:
- ["Adam Brenecki", "https://github.com/adambrenecki"]
+ - ["Suhas SG", "https://github.com/jargnar"]
---
YAML is a data serialisation language designed to be directly writable and
@@ -66,14 +67,19 @@ a_nested_map:
# Maps don't have to have string keys.
0.25: a float key
-# Keys can also be multi-line objects, using ? to indicate the start of a key.
+# Keys can also be complex, like multi-line objects
+# We use ? followed by a space to indicate the start of a complex key.
? |
This is a key
that has multiple lines
: and this is its value
-# YAML also allows collection types in keys, but many programming languages
-# will complain.
+# YAML also allows mapping between sequences with the complex key syntax
+# Some language parsers might complain
+# An example
+? - Manchester United
+ - Real Madrid
+: [ 2001-01-01, 2002-02-02 ]
# Sequences (equivalent to lists or arrays) look like this:
a_sequence:
@@ -101,12 +107,31 @@ json_seq: [3, 2, 1, "takeoff"]
anchored_content: &anchor_name This string will appear as the value of two keys.
other_anchor: *anchor_name
+# Anchors can be used to duplicate/inherit properties
+base: &base
+ name: Everyone has same name
+
+foo: &foo
+ <<: *base
+ age: 10
+
+bar: &bar
+ <<: *base
+ age: 20
+
+# foo and bar would also have name: Everyone has same name
+
# YAML also has tags, which you can use to explicitly declare types.
explicit_string: !!str 0.5
# Some parsers implement language specific tags, like this one for Python's
# complex number type.
python_complex_number: !!python/complex 1+2j
+# We can also use yaml complex keys with language specific tags
+? !!python/tuple [5, 7]
+: Fifty Seven
+# Would be {(5, 7): 'Fifty Seven'} in python
+
####################
# EXTRA YAML TYPES #
####################