// strings.groovy — single quotes, GStrings, multi-line strings and string methods.
def customer = 'Acme'                       // plain String
def amount = 204.5

// GString: double quotes with ${...} or $variable
println "Customer $customer owes ${amount * 1.2}"

// Single quotes never interpolate
println 'Customer $customer owes ${amount}'

// Triple quotes: multi-line
def json = """{
  "customer": "$customer",
  "amount": $amount
}"""
println json

// Slashy strings: great for regular expressions (no double escaping)
def skuPattern = /[A-Z]{2}-\d{3}/
println 'AX-200' ==~ skuPattern             // true: whole-string match
def found = ('Order AX-200 and BX-310' =~ skuPattern).findAll()
println found                                // [AX-200, BX-310]

// Handy String methods added by Groovy
println 'po-4471'.toUpperCase().padLeft(10, '*')   // ***PO-4471
println 'a,b,,c'.tokenize(',')                     // [a, b, c]  (split keeps empties)
println 'hello world'.capitalize()                  // Hello world
println '42'.isInteger() ? '42'.toInteger() + 1 : 'not a number'   // 43
println 'Boomi'[0..2]                               // Boo
println 'Boomi'[-1]                                 // i
println 'ab' * 3                                    // ababab
println 'Acme Ltd' - ' Ltd'                         // Acme

// Multi-line text with stripIndent
def message = '''\
    Dear customer,
      your order has shipped.
    '''.stripIndent()
print message