retoor
79ff93c9a2
Add new pexpect module for process spawning and interaction, including Spawn class with expect, sendline, and timeout handling. Introduce yaml module for YAML parsing with support for nested structures, lists, and data types. Extend jinja template engine with brace tokenization and FromImportNode for macro imports across templates. Register all new foreign functions in modules.c and include generated demo scripts.
106 lines
2.6 KiB
JavaScript
Vendored
106 lines
2.6 KiB
JavaScript
Vendored
// retoor <retoor@molodetz.nl>
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import "yaml" for Yaml
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System.print("=== YAML Module Demo ===\n")
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System.print("--- Basic Parsing ---")
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var simple = Yaml.parse("name: Wren-CLI\nversion: 0.4.0")
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System.print("Name: %(simple["name"])")
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System.print("Version: %(simple["version"])")
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System.print("\n--- Nested Structures ---")
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var nested = "
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database:
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host: localhost
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port: 5432
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credentials:
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user: admin
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password: secret
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"
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var config = Yaml.parse(nested)
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System.print("Host: %(config["database"]["host"])")
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System.print("Port: %(config["database"]["port"])")
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System.print("User: %(config["database"]["credentials"]["user"])")
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System.print("\n--- Lists ---")
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var listYaml = "
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languages:
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- Wren
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- C
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- Python
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"
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var langs = Yaml.parse(listYaml)
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System.print("Languages:")
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for (lang in langs["languages"]) {
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System.print(" - %(lang)")
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}
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System.print("\n--- Complex Structure (Navigation) ---")
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var navYaml = "
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sections:
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- title: Getting Started
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pages:
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- file: index
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title: Overview
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- file: installation
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title: Installation
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- title: API Reference
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pages:
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- file: yaml
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title: yaml
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"
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var nav = Yaml.parse(navYaml)
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for (section in nav["sections"]) {
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System.print("Section: %(section["title"])")
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for (page in section["pages"]) {
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System.print(" - %(page["title"]) (%(page["file"]))")
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}
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}
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System.print("\n--- Data Types ---")
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var types = "
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string: hello world
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number: 42
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float: 3.14159
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bool_true: true
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bool_false: false
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null_value: null
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quoted: \"with spaces\"
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"
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var data = Yaml.parse(types)
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System.print("String: %(data["string"]) (%(data["string"].type))")
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System.print("Number: %(data["number"]) (%(data["number"].type))")
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System.print("Float: %(data["float"]) (%(data["float"].type))")
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System.print("Bool true: %(data["bool_true"]) (%(data["bool_true"].type))")
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System.print("Bool false: %(data["bool_false"]) (%(data["bool_false"].type))")
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System.print("Null: %(data["null_value"])")
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System.print("Quoted: %(data["quoted"])")
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System.print("\n--- Stringify ---")
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var obj = {
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"name": "Example",
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"count": 42,
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"active": true,
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"items": ["one", "two", "three"],
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"nested": {
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"key": "value"
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}
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}
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System.print("Serialized:")
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System.print(Yaml.stringify(obj))
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System.print("\n--- Round-trip ---")
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var original = "
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title: Test
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items:
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- first
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- second
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"
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var parsed = Yaml.parse(original)
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var reserialized = Yaml.stringify(parsed)
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var reparsed = Yaml.parse(reserialized)
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System.print("Original title: %(parsed["title"])")
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System.print("Reparsed title: %(reparsed["title"])")
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System.print("Items match: %(parsed["items"][0] == reparsed["items"][0])")
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