YAML to XML

import { parseDocument } from 'yaml'
import { js2xml } from 'xml-js'

const yamlStr = `
server:
  host: localhost
  port: 8080
  ssl: true
`

const data = parseDocument(yamlStr).toJSON()
const xml = js2xml({ root: data }, { compact: true, spaces: 2 })
console.log(xml)
// → <root>
// →   <server>
// →     <host>localhost</host>
// →     <port>8080</port>
// →     <ssl>true</ssl>
// →   </server>
// → </root>

import yaml
import xml.etree.ElementTree as ET

yaml_str = """
database:
  host: db.example.com
  port: 5432
  credentials:
    user: admin
    password: secret
"""

data = yaml.safe_load(yaml_str)

def dict_to_xml(tag, d):
    elem = ET.Element(tag)
    for key, val in d.items():
        child = ET.SubElement(elem, key)
        if isinstance(val, dict):
            child.extend(dict_to_xml(key, val))
            elem.remove(child)
            elem.append(dict_to_xml(key, val))
        else:
            child.text = str(val)
    return elem

root = dict_to_xml('root', data)
ET.indent(root, space='  ')
print(ET.tostring(root, encoding='unicode'))
# → <root>
# →   <database>
# →     <host>db.example.com</host>
# →     <port>5432</port>
# →     ...
# →   </database>
# → </root>

package main

import (
    "encoding/xml"
    "fmt"
    "gopkg.in/yaml.v3"
)

type Server struct {
    XMLName xml.Name `xml:"server"`
    Host    string   `yaml:"host" xml:"host"`
    Port    int      `yaml:"port" xml:"port"`
    SSL     bool     `yaml:"ssl"  xml:"ssl"`
}

func main() {
    yamlData := []byte("host: localhost\nport: 8080\nssl: true")

    var s Server
    yaml.Unmarshal(yamlData, &s)

    xmlBytes, _ := xml.MarshalIndent(s, "", "  ")
    fmt.Println(xml.Header + string(xmlBytes))
    // → <?xml version="1.0" encoding="UTF-8"?>
    // → <server>
    // →   <host>localhost</host>
    // →   <port>8080</port>
    // →   <ssl>true</ssl>
    // → </server>
}

# Using yq (YAML processor) with xq (XML wrapper around jq)
# Install: pip install yq

# Convert YAML file to XML
yq -x . config.yaml
# → <host>localhost</host><port>8080</port>

# Pipe inline YAML through conversion
echo "name: Alice" | yq -x .
# → <name>Alice</name>