mon-core 0.0.3

A robust parser and validator for the Mycel Object Notation (MON) language, designed for fast, efficient, and human-friendly configuration.
Documentation 
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// Import base types and anchors
import { &base_credentials, &base_permissions, Component } from "./nightmare_base.mon"

{
    // Define local enums and more complex structs
    Status: #enum { Enabled, Disabled, Maintenance },
    Protocol: #enum { TCP, UDP },

    Endpoint: #struct {
        protocol(Protocol) = $Protocol.TCP,
        port(Number),
    },

    Service: #struct {
        component(Component),
        status(Status) = $Status.Disabled,
        endpoint(Endpoint),
        sub_services([Service...]) = [],
    },

    // --- Data Section ---

    &admin_credentials: {
        ...*base_credentials,
        user: "admin",
        pass: "a_much_better_password",
    },

    &admin_permissions: [
        ...*base_permissions,
        "WRITE",
        "DELETE",
        "CONFIG_RELOAD",
    ],

    // An anchor that is an alias to another anchor
    &creds_alias: *admin_credentials,

    // The main database service instance, validated against the Service struct
    database_service :: Service = {
        component: {
            id: "db-01",
            name: "Primary Database",
            tags: ["postgres", "critical", "v1.2.3"],
        },
        status: $Status.Enabled,
        endpoint: {
            port: 5432,
        },
        // A sub-service that is itself a Service, demonstrating recursion
        sub_services: [
            {
                component: {
                    id: "db-replica-01",
                    name: "Database Replica",
                    tags: ["postgres", "replica"],
                },
                status: $Status.Enabled, // This will override the default 'Disabled'
                endpoint: { port: 5433, protocol: $Protocol.TCP },
                sub_services: [
                    {
                        component: { id: "backup-agent", name: "Backup Agent" }, // tags will use default []
                        endpoint: { port: 9000, protocol: $Protocol.UDP },
                        status: $Status.Maintenance,
                        // sub_services will use default []
                    }
                ]
            }
        ]
    },

    // Another service, using the creds_alias and permissions alias
    "api-gateway": {
        credentials: *creds_alias,
        permissions: *admin_permissions,
        port: 443,
    },
}