Added YAML syntax test script.

experiments/yaml/README.md

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+A playground to validate supported YAML syntax.

experiments/yaml/test.py

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+import yaml
+document = []
+document.append("""
+v1: 1
+v2: 5.3
+v3: -3.0e6
+""")  # 0
+document.append("""
+v1: true
+v2: false
+""")  # 1
+document.append("""
+v1: True
+v2: False
+""")  # 2
+document.append("""
+v1: Hi!
+v2: '3'
+v3: \"true\"
+v4: \"  I have spaces  \"
+""")  # 3
+document.append("""
+- abc
+- '3'
+- \"true\"
+- \"  I have spaces  \"
+""")  # 4
+document.append("""
+people:
+  - John
+  - Cindy
+  - Luca
+  - Laura
+""")  # 5
+document.append("""
+John:
+  age: 25
+  gender: male
+""")  # 6
+document.append("""
+people:
+  - John:
+      age: 25
+      gender: male
+  - Cindy
+  - Luca
+  - Laura
+""")  # 7
+document.append("""
+list_of_lists:
+  - - a
+    - b
+    - c
+  - - 1
+    - 2
+    - 3
+    - 4
+""")  # 8
+document.append("""
+list_of_lists:
+  - [ a, b, c ]
+  - [ 1, 2, 3, 4 ]
+""")  # 9
+document.append("""
+people:
+  - John: { age: 25, gender: male }
+  - Cindy
+  - Luca
+  - Laura
+""")  # 10
+
+
+print(yaml.load(document[-1]))